diff options
Diffstat (limited to 'drivers')
52 files changed, 3833 insertions, 1335 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 2478cca653de..ae19c9b30d15 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -184,7 +184,7 @@ config PATA_ACPI config SATA_FSL tristate "Freescale 3.0Gbps SATA support" - depends on PPC_MPC837x + depends on FSL_SOC help This option enables support for Freescale 3.0Gbps SATA controller. It can be found on MPC837x and MPC8315. @@ -616,13 +616,23 @@ config PATA_WINBOND_VLB config PATA_PLATFORM tristate "Generic platform device PATA support" - depends on EMBEDDED || ARCH_RPC + depends on EMBEDDED || ARCH_RPC || PPC help This option enables support for generic directly connected ATA devices commonly found on embedded systems. If unsure, say N. +config PATA_OF_PLATFORM + tristate "OpenFirmware platform device PATA support" + depends on PATA_PLATFORM && PPC_OF + help + This option enables support for generic directly connected ATA + devices commonly found on embedded systems with OpenFirmware + bindings. + + If unsure, say N. + config PATA_ICSIDE tristate "Acorn ICS PATA support" depends on ARM && ARCH_ACORN diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index 82550c16818c..701651e37c89 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -68,6 +68,7 @@ obj-$(CONFIG_PATA_IXP4XX_CF) += pata_ixp4xx_cf.o obj-$(CONFIG_PATA_SCC) += pata_scc.o obj-$(CONFIG_PATA_BF54X) += pata_bf54x.o obj-$(CONFIG_PATA_PLATFORM) += pata_platform.o +obj-$(CONFIG_PATA_OF_PLATFORM) += pata_of_platform.o obj-$(CONFIG_PATA_ICSIDE) += pata_icside.o # Should be last but two libata driver obj-$(CONFIG_PATA_ACPI) += pata_acpi.o diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c index dc401626cdb2..5413ebfa72e5 100644 --- a/drivers/ata/pata_mpc52xx.c +++ b/drivers/ata/pata_mpc52xx.c @@ -494,10 +494,8 @@ mpc52xx_ata_resume(struct of_device *op) static struct of_device_id mpc52xx_ata_of_match[] = { - { - .type = "ata", - .compatible = "mpc5200-ata", - }, + { .compatible = "fsl,mpc5200-ata", }, + { .compatible = "mpc5200-ata", }, {}, }; diff --git a/drivers/ata/pata_of_platform.c b/drivers/ata/pata_of_platform.c new file mode 100644 index 000000000000..938f48a807eb --- /dev/null +++ b/drivers/ata/pata_of_platform.c @@ -0,0 +1,114 @@ +/* + * OF-platform PATA driver + * + * Copyright (c) 2007 MontaVista Software, Inc. + * Anton Vorontsov <avorontsov@ru.mvista.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/pata_platform.h> + +static int __devinit pata_of_platform_probe(struct of_device *ofdev, + const struct of_device_id *match) +{ + int ret; + struct device_node *dn = ofdev->node; + struct resource io_res; + struct resource ctl_res; + struct resource irq_res; + unsigned int reg_shift = 0; + int pio_mode = 0; + int pio_mask; + const u32 *prop; + + ret = of_address_to_resource(dn, 0, &io_res); + if (ret) { + dev_err(&ofdev->dev, "can't get IO address from " + "device tree\n"); + return -EINVAL; + } + + if (of_device_is_compatible(dn, "electra-ide")) { + /* Altstatus is really at offset 0x3f6 from the primary window + * on electra-ide. Adjust ctl_res and io_res accordingly. + */ + ctl_res = io_res; + ctl_res.start = ctl_res.start+0x3f6; + io_res.end = ctl_res.start-1; + } else { + ret = of_address_to_resource(dn, 1, &ctl_res); + if (ret) { + dev_err(&ofdev->dev, "can't get CTL address from " + "device tree\n"); + return -EINVAL; + } + } + + ret = of_irq_to_resource(dn, 0, &irq_res); + if (ret == NO_IRQ) + irq_res.start = irq_res.end = -1; + else + irq_res.flags = 0; + + prop = of_get_property(dn, "reg-shift", NULL); + if (prop) + reg_shift = *prop; + + prop = of_get_property(dn, "pio-mode", NULL); + if (prop) { + pio_mode = *prop; + if (pio_mode > 6) { + dev_err(&ofdev->dev, "invalid pio-mode\n"); + return -EINVAL; + } + } else { + dev_info(&ofdev->dev, "pio-mode unspecified, assuming PIO0\n"); + } + + pio_mask = 1 << pio_mode; + pio_mask |= (1 << pio_mode) - 1; + + return __pata_platform_probe(&ofdev->dev, &io_res, &ctl_res, &irq_res, + reg_shift, pio_mask); +} + +static int __devexit pata_of_platform_remove(struct of_device *ofdev) +{ + return __pata_platform_remove(&ofdev->dev); +} + +static struct of_device_id pata_of_platform_match[] = { + { .compatible = "ata-generic", }, + { .compatible = "electra-ide", }, + {}, +}; +MODULE_DEVICE_TABLE(of, pata_of_platform_match); + +static struct of_platform_driver pata_of_platform_driver = { + .name = "pata_of_platform", + .match_table = pata_of_platform_match, + .probe = pata_of_platform_probe, + .remove = __devexit_p(pata_of_platform_remove), +}; + +static int __init pata_of_platform_init(void) +{ + return of_register_platform_driver(&pata_of_platform_driver); +} +module_init(pata_of_platform_init); + +static void __exit pata_of_platform_exit(void) +{ + of_unregister_platform_driver(&pata_of_platform_driver); +} +module_exit(pata_of_platform_exit); + +MODULE_DESCRIPTION("OF-platform PATA driver"); +MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c index ac03a90a6168..224bb6c2030a 100644 --- a/drivers/ata/pata_platform.c +++ b/drivers/ata/pata_platform.c @@ -93,14 +93,9 @@ static struct ata_port_operations pata_platform_port_ops = { }; static void pata_platform_setup_port(struct ata_ioports *ioaddr, - struct pata_platform_info *info) + unsigned int shift) { - unsigned int shift = 0; - /* Fixup the port shift for platforms that need it */ - if (info && info->ioport_shift) - shift = info->ioport_shift; - ioaddr->data_addr = ioaddr->cmd_addr + (ATA_REG_DATA << shift); ioaddr->error_addr = ioaddr->cmd_addr + (ATA_REG_ERR << shift); ioaddr->feature_addr = ioaddr->cmd_addr + (ATA_REG_FEATURE << shift); @@ -114,8 +109,13 @@ static void pata_platform_setup_port(struct ata_ioports *ioaddr, } /** - * pata_platform_probe - attach a platform interface - * @pdev: platform device + * __pata_platform_probe - attach a platform interface + * @dev: device + * @io_res: Resource representing I/O base + * @ctl_res: Resource representing CTL base + * @irq_res: Resource representing IRQ and its flags + * @ioport_shift: I/O port shift + * @__pio_mask: PIO mask * * Register a platform bus IDE interface. Such interfaces are PIO and we * assume do not support IRQ sharing. @@ -135,42 +135,18 @@ static void pata_platform_setup_port(struct ata_ioports *ioaddr, * * If no IRQ resource is present, PIO polling mode is used instead. */ -static int __devinit pata_platform_probe(struct platform_device *pdev) +int __devinit __pata_platform_probe(struct device *dev, + struct resource *io_res, + struct resource *ctl_res, + struct resource *irq_res, + unsigned int ioport_shift, + int __pio_mask) { - struct resource *io_res, *ctl_res; struct ata_host *host; struct ata_port *ap; - struct pata_platform_info *pp_info; unsigned int mmio; - int irq; - - /* - * Simple resource validation .. - */ - if ((pdev->num_resources != 3) && (pdev->num_resources != 2)) { - dev_err(&pdev->dev, "invalid number of resources\n"); - return -EINVAL; - } - - /* - * Get the I/O base first - */ - io_res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (io_res == NULL) { - io_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (unlikely(io_res == NULL)) - return -EINVAL; - } - - /* - * Then the CTL base - */ - ctl_res = platform_get_resource(pdev, IORESOURCE_IO, 1); - if (ctl_res == NULL) { - ctl_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (unlikely(ctl_res == NULL)) - return -EINVAL; - } + int irq = 0; + int irq_flags = 0; /* * Check for MMIO @@ -181,20 +157,21 @@ static int __devinit pata_platform_probe(struct platform_device *pdev) /* * And the IRQ */ - irq = platform_get_irq(pdev, 0); - if (irq < 0) - irq = 0; /* no irq */ + if (irq_res && irq_res->start > 0) { + irq = irq_res->start; + irq_flags = irq_res->flags; + } /* * Now that that's out of the way, wire up the port.. */ - host = ata_host_alloc(&pdev->dev, 1); + host = ata_host_alloc(dev, 1); if (!host) return -ENOMEM; ap = host->ports[0]; ap->ops = &pata_platform_port_ops; - ap->pio_mask = pio_mask; + ap->pio_mask = __pio_mask; ap->flags |= ATA_FLAG_SLAVE_POSS; /* @@ -209,25 +186,24 @@ static int __devinit pata_platform_probe(struct platform_device *pdev) * Handle the MMIO case */ if (mmio) { - ap->ioaddr.cmd_addr = devm_ioremap(&pdev->dev, io_res->start, + ap->ioaddr.cmd_addr = devm_ioremap(dev, io_res->start, io_res->end - io_res->start + 1); - ap->ioaddr.ctl_addr = devm_ioremap(&pdev->dev, ctl_res->start, + ap->ioaddr.ctl_addr = devm_ioremap(dev, ctl_res->start, ctl_res->end - ctl_res->start + 1); } else { - ap->ioaddr.cmd_addr = devm_ioport_map(&pdev->dev, io_res->start, + ap->ioaddr.cmd_addr = devm_ioport_map(dev, io_res->start, io_res->end - io_res->start + 1); - ap->ioaddr.ctl_addr = devm_ioport_map(&pdev->dev, ctl_res->start, + ap->ioaddr.ctl_addr = devm_ioport_map(dev, ctl_res->start, ctl_res->end - ctl_res->start + 1); } if (!ap->ioaddr.cmd_addr || !ap->ioaddr.ctl_addr) { - dev_err(&pdev->dev, "failed to map IO/CTL base\n"); + dev_err(dev, "failed to map IO/CTL base\n"); return -ENOMEM; } ap->ioaddr.altstatus_addr = ap->ioaddr.ctl_addr; - pp_info = pdev->dev.platform_data; - pata_platform_setup_port(&ap->ioaddr, pp_info); + pata_platform_setup_port(&ap->ioaddr, ioport_shift); ata_port_desc(ap, "%s cmd 0x%llx ctl 0x%llx", mmio ? "mmio" : "ioport", (unsigned long long)io_res->start, @@ -235,26 +211,78 @@ static int __devinit pata_platform_probe(struct platform_device *pdev) /* activate */ return ata_host_activate(host, irq, irq ? ata_interrupt : NULL, - pp_info ? pp_info->irq_flags : 0, - &pata_platform_sht); + irq_flags, &pata_platform_sht); } +EXPORT_SYMBOL_GPL(__pata_platform_probe); /** - * pata_platform_remove - unplug a platform interface - * @pdev: platform device + * __pata_platform_remove - unplug a platform interface + * @dev: device * * A platform bus ATA device has been unplugged. Perform the needed * cleanup. Also called on module unload for any active devices. */ -static int __devexit pata_platform_remove(struct platform_device *pdev) +int __devexit __pata_platform_remove(struct device *dev) { - struct device *dev = &pdev->dev; struct ata_host *host = dev_get_drvdata(dev); ata_host_detach(host); return 0; } +EXPORT_SYMBOL_GPL(__pata_platform_remove); + +static int __devinit pata_platform_probe(struct platform_device *pdev) +{ + struct resource *io_res; + struct resource *ctl_res; + struct resource *irq_res; + struct pata_platform_info *pp_info = pdev->dev.platform_data; + + /* + * Simple resource validation .. + */ + if ((pdev->num_resources != 3) && (pdev->num_resources != 2)) { + dev_err(&pdev->dev, "invalid number of resources\n"); + return -EINVAL; + } + + /* + * Get the I/O base first + */ + io_res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (io_res == NULL) { + io_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (unlikely(io_res == NULL)) + return -EINVAL; + } + + /* + * Then the CTL base + */ + ctl_res = platform_get_resource(pdev, IORESOURCE_IO, 1); + if (ctl_res == NULL) { + ctl_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (unlikely(ctl_res == NULL)) + return -EINVAL; + } + + /* + * And the IRQ + */ + irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (irq_res) + irq_res->flags = pp_info ? pp_info->irq_flags : 0; + + return __pata_platform_probe(&pdev->dev, io_res, ctl_res, irq_res, + pp_info ? pp_info->ioport_shift : 0, + pio_mask); +} + +static int __devexit pata_platform_remove(struct platform_device *pdev) +{ + return __pata_platform_remove(&pdev->dev); +} static struct platform_driver pata_platform_driver = { .probe = pata_platform_probe, diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index 2d7cd486e025..6bbd4fa50f3b 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -98,7 +98,7 @@ config HW_RANDOM_PASEMI default HW_RANDOM ---help--- This driver provides kernel-side support for the Random Number - Generator hardware found on PA6T-1682M processor. + Generator hardware found on PA Semi PWRficient SoCs. To compile this driver as a module, choose M here: the module will be called pasemi-rng. diff --git a/drivers/char/hw_random/pasemi-rng.c b/drivers/char/hw_random/pasemi-rng.c index e2ea210cfa5f..6d50e9bc700b 100644 --- a/drivers/char/hw_random/pasemi-rng.c +++ b/drivers/char/hw_random/pasemi-rng.c @@ -134,10 +134,9 @@ static int __devexit rng_remove(struct of_device *dev) } static struct of_device_id rng_match[] = { - { - .compatible = "1682m-rng", - }, - {}, + { .compatible = "1682m-rng", }, + { .compatible = "pasemi,pwrficient-rng", }, + { }, }; static struct of_platform_driver rng_driver = { diff --git a/drivers/edac/pasemi_edac.c b/drivers/edac/pasemi_edac.c index 9007d0677220..90320917be28 100644 --- a/drivers/edac/pasemi_edac.c +++ b/drivers/edac/pasemi_edac.c @@ -225,7 +225,7 @@ static int __devinit pasemi_edac_probe(struct pci_dev *pdev, EDAC_FLAG_NONE; mci->mod_name = MODULE_NAME; mci->dev_name = pci_name(pdev); - mci->ctl_name = "pasemi,1682m-mc"; + mci->ctl_name = "pasemi,pwrficient-mc"; mci->edac_check = pasemi_edac_check; mci->ctl_page_to_phys = NULL; pci_read_config_dword(pdev, MCCFG_SCRUB, &scrub); @@ -297,4 +297,4 @@ module_exit(pasemi_edac_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Egor Martovetsky <egor@pasemi.com>"); -MODULE_DESCRIPTION("MC support for PA Semi PA6T-1682M memory controller"); +MODULE_DESCRIPTION("MC support for PA Semi PWRficient memory controller"); diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c index b7adde4324e4..7ce0ea64465c 100644 --- a/drivers/macintosh/adb.c +++ b/drivers/macintosh/adb.c @@ -35,6 +35,7 @@ #include <linux/spinlock.h> #include <linux/completion.h> #include <linux/device.h> +#include <linux/kthread.h> #include <asm/uaccess.h> #include <asm/semaphore.h> @@ -82,21 +83,11 @@ struct adb_driver *adb_controller; BLOCKING_NOTIFIER_HEAD(adb_client_list); static int adb_got_sleep; static int adb_inited; -static pid_t adb_probe_task_pid; static DECLARE_MUTEX(adb_probe_mutex); -static struct completion adb_probe_task_comp; static int sleepy_trackpad; static int autopoll_devs; int __adb_probe_sync; -#ifdef CONFIG_PM_SLEEP -static void adb_notify_sleep(struct pmu_sleep_notifier *self, int when); -static struct pmu_sleep_notifier adb_sleep_notifier = { - adb_notify_sleep, - SLEEP_LEVEL_ADB, -}; -#endif - static int adb_scan_bus(void); static int do_adb_reset_bus(void); static void adbdev_init(void); @@ -134,16 +125,6 @@ static void printADBreply(struct adb_request *req) } #endif - -static __inline__ void adb_wait_ms(unsigned int ms) -{ - if (current->pid && adb_probe_task_pid && - adb_probe_task_pid == current->pid) - msleep(ms); - else - mdelay(ms); -} - static int adb_scan_bus(void) { int i, highFree=0, noMovement; @@ -248,13 +229,10 @@ static int adb_scan_bus(void) static int adb_probe_task(void *x) { - strcpy(current->comm, "kadbprobe"); - printk(KERN_INFO "adb: starting probe task...\n"); do_adb_reset_bus(); printk(KERN_INFO "adb: finished probe task...\n"); - adb_probe_task_pid = 0; up(&adb_probe_mutex); return 0; @@ -263,7 +241,7 @@ adb_probe_task(void *x) static void __adb_probe_task(struct work_struct *bullshit) { - adb_probe_task_pid = kernel_thread(adb_probe_task, NULL, SIGCHLD | CLONE_KERNEL); + kthread_run(adb_probe_task, NULL, "kadbprobe"); } static DECLARE_WORK(adb_reset_work, __adb_probe_task); @@ -281,6 +259,36 @@ adb_reset_bus(void) return 0; } +#ifdef CONFIG_PM +/* + * notify clients before sleep + */ +static int adb_suspend(struct platform_device *dev, pm_message_t state) +{ + adb_got_sleep = 1; + /* We need to get a lock on the probe thread */ + down(&adb_probe_mutex); + /* Stop autopoll */ + if (adb_controller->autopoll) + adb_controller->autopoll(0); + blocking_notifier_call_chain(&adb_client_list, ADB_MSG_POWERDOWN, NULL); + + return 0; +} + +/* + * reset bus after sleep + */ +static int adb_resume(struct platform_device *dev) +{ + adb_got_sleep = 0; + up(&adb_probe_mutex); + adb_reset_bus(); + + return 0; +} +#endif /* CONFIG_PM */ + int __init adb_init(void) { struct adb_driver *driver; @@ -313,15 +321,12 @@ int __init adb_init(void) printk(KERN_WARNING "Warning: no ADB interface detected\n"); adb_controller = NULL; } else { -#ifdef CONFIG_PM_SLEEP - pmu_register_sleep_notifier(&adb_sleep_notifier); -#endif /* CONFIG_PM */ #ifdef CONFIG_PPC if (machine_is_compatible("AAPL,PowerBook1998") || machine_is_compatible("PowerBook1,1")) sleepy_trackpad = 1; #endif /* CONFIG_PPC */ - init_completion(&adb_probe_task_comp); + adbdev_init(); adb_reset_bus(); } @@ -330,33 +335,6 @@ int __init adb_init(void) __initcall(adb_init); -#ifdef CONFIG_PM -/* - * notify clients before sleep and reset bus afterwards - */ -void -adb_notify_sleep(struct pmu_sleep_notifier *self, int when) -{ - switch (when) { - case PBOOK_SLEEP_REQUEST: - adb_got_sleep = 1; - /* We need to get a lock on the probe thread */ - down(&adb_probe_mutex); - /* Stop autopoll */ - if (adb_controller->autopoll) - adb_controller->autopoll(0); - blocking_notifier_call_chain(&adb_client_list, - ADB_MSG_POWERDOWN, NULL); - break; - case PBOOK_WAKE: - adb_got_sleep = 0; - up(&adb_probe_mutex); - adb_reset_bus(); - break; - } -} -#endif /* CONFIG_PM */ - static int do_adb_reset_bus(void) { @@ -373,7 +351,7 @@ do_adb_reset_bus(void) if (sleepy_trackpad) { /* Let the trackpad settle down */ - adb_wait_ms(500); + msleep(500); } down(&adb_handler_sem); @@ -389,7 +367,7 @@ do_adb_reset_bus(void) if (sleepy_trackpad) { /* Let the trackpad settle down */ - adb_wait_ms(1500); + msleep(1500); } if (!ret) { @@ -413,41 +391,27 @@ adb_poll(void) adb_controller->poll(); } -static void -adb_probe_wakeup(struct adb_request *req) +static void adb_sync_req_done(struct adb_request *req) { - complete(&adb_probe_task_comp); -} + struct completion *comp = req->arg; -/* Static request used during probe */ -static struct adb_request adb_sreq; -static unsigned long adb_sreq_lock; // Use semaphore ! */ + complete(comp); +} int adb_request(struct adb_request *req, void (*done)(struct adb_request *), int flags, int nbytes, ...) { va_list list; - int i, use_sreq; + int i; int rc; + struct completion comp; if ((adb_controller == NULL) || (adb_controller->send_request == NULL)) return -ENXIO; if (nbytes < 1) return -EINVAL; - if (req == NULL && (flags & ADBREQ_NOSEND)) - return -EINVAL; - - if (req == NULL) { - if (test_and_set_bit(0,&adb_sreq_lock)) { - printk("adb.c: Warning: contention on static request !\n"); - return -EPERM; - } - req = &adb_sreq; - flags |= ADBREQ_SYNC; - use_sreq = 1; - } else - use_sreq = 0; + req->nbytes = nbytes+1; req->done = done; req->reply_expected = flags & ADBREQ_REPLY; @@ -460,25 +424,18 @@ adb_request(struct adb_request *req, void (*done)(struct adb_request *), if (flags & ADBREQ_NOSEND) return 0; - /* Synchronous requests send from the probe thread cause it to - * block. Beware that the "done" callback will be overriden ! - */ - if ((flags & ADBREQ_SYNC) && - (current->pid && adb_probe_task_pid && - adb_probe_task_pid == current->pid)) { - req->done = adb_probe_wakeup; - rc = adb_controller->send_request(req, 0); - if (rc || req->complete) - goto bail; - wait_for_completion(&adb_probe_task_comp); - rc = 0; - goto bail; + /* Synchronous requests block using an on-stack completion */ + if (flags & ADBREQ_SYNC) { + WARN_ON(done); + req->done = adb_sync_req_done; + req->arg = ∁ + init_completion(&comp); } - rc = adb_controller->send_request(req, flags & ADBREQ_SYNC); -bail: - if (use_sreq) - clear_bit(0, &adb_sreq_lock); + rc = adb_controller->send_request(req, 0); + + if ((flags & ADBREQ_SYNC) && !rc && !req->complete) + wait_for_completion(&comp); return rc; } @@ -864,7 +821,29 @@ static const struct file_operations adb_fops = { .release = adb_release, }; -static void +static struct platform_driver adb_pfdrv = { + .driver = { + .name = "adb", + }, +#ifdef CONFIG_PM + .suspend = adb_suspend, + .resume = adb_resume, +#endif +}; + +static struct platform_device adb_pfdev = { + .name = "adb", +}; + +static int __init +adb_dummy_probe(struct platform_device *dev) +{ + if (dev == &adb_pfdev) + return 0; + return -ENODEV; +} + +static void __init adbdev_init(void) { if (register_chrdev(ADB_MAJOR, "adb", &adb_fops)) { @@ -876,4 +855,7 @@ adbdev_init(void) if (IS_ERR(adb_dev_class)) return; device_create(adb_dev_class, NULL, MKDEV(ADB_MAJOR, 0), "adb"); + + platform_device_register(&adb_pfdev); + platform_driver_probe(&adb_pfdrv, adb_dummy_probe); } diff --git a/drivers/macintosh/mediabay.c b/drivers/macintosh/mediabay.c index eaba4a9b231e..18dde2a27209 100644 --- a/drivers/macintosh/mediabay.c +++ b/drivers/macintosh/mediabay.c @@ -20,6 +20,7 @@ #include <linux/stddef.h> #include <linux/init.h> #include <linux/ide.h> +#include <linux/kthread.h> #include <asm/prom.h> #include <asm/pgtable.h> #include <asm/io.h> @@ -35,7 +36,6 @@ #define MB_DEBUG -#define MB_IGNORE_SIGNALS #ifdef MB_DEBUG #define MBDBG(fmt, arg...) printk(KERN_INFO fmt , ## arg) @@ -623,12 +623,7 @@ static int media_bay_task(void *x) { int i; - strcpy(current->comm, "media-bay"); -#ifdef MB_IGNORE_SIGNALS - sigfillset(¤t->blocked); -#endif - - for (;;) { + while (!kthread_should_stop()) { for (i = 0; i < media_bay_count; ++i) { down(&media_bays[i].lock); if (!media_bays[i].sleeping) @@ -637,9 +632,8 @@ static int media_bay_task(void *x) } msleep_interruptible(MB_POLL_DELAY); - if (signal_pending(current)) - return 0; } + return 0; } static int __devinit media_bay_attach(struct macio_dev *mdev, const struct of_device_id *match) @@ -700,7 +694,7 @@ static int __devinit media_bay_attach(struct macio_dev *mdev, const struct of_de /* Startup kernel thread */ if (i == 0) - kernel_thread(media_bay_task, NULL, CLONE_KERNEL); + kthread_run(media_bay_task, NULL, "media-bay"); return 0; diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c index 276945d51513..54f4942a2968 100644 --- a/drivers/macintosh/therm_adt746x.c +++ b/drivers/macintosh/therm_adt746x.c @@ -553,6 +553,7 @@ thermostat_init(void) struct device_node* np; const u32 *prop; int i = 0, offset = 0; + int err; np = of_find_node_by_name(NULL, "fan"); if (!np) @@ -612,17 +613,20 @@ thermostat_init(void) return -ENODEV; } - device_create_file(&of_dev->dev, &dev_attr_sensor1_temperature); - device_create_file(&of_dev->dev, &dev_attr_sensor2_temperature); - device_create_file(&of_dev->dev, &dev_attr_sensor1_limit); - device_create_file(&of_dev->dev, &dev_attr_sensor2_limit); - device_create_file(&of_dev->dev, &dev_attr_sensor1_location); - device_create_file(&of_dev->dev, &dev_attr_sensor2_location); - device_create_file(&of_dev->dev, &dev_attr_limit_adjust); - device_create_file(&of_dev->dev, &dev_attr_specified_fan_speed); - device_create_file(&of_dev->dev, &dev_attr_sensor1_fan_speed); + err = device_create_file(&of_dev->dev, &dev_attr_sensor1_temperature); + err |= device_create_file(&of_dev->dev, &dev_attr_sensor2_temperature); + err |= device_create_file(&of_dev->dev, &dev_attr_sensor1_limit); + err |= device_create_file(&of_dev->dev, &dev_attr_sensor2_limit); + err |= device_create_file(&of_dev->dev, &dev_attr_sensor1_location); + err |= device_create_file(&of_dev->dev, &dev_attr_sensor2_location); + err |= device_create_file(&of_dev->dev, &dev_attr_limit_adjust); + err |= device_create_file(&of_dev->dev, &dev_attr_specified_fan_speed); + err |= device_create_file(&of_dev->dev, &dev_attr_sensor1_fan_speed); if(therm_type == ADT7460) - device_create_file(&of_dev->dev, &dev_attr_sensor2_fan_speed); + err |= device_create_file(&of_dev->dev, &dev_attr_sensor2_fan_speed); + if (err) + printk(KERN_WARNING + "Failed to create tempertaure attribute file(s).\n"); #ifndef CONFIG_I2C_POWERMAC request_module("i2c-powermac"); diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c index e43554e754a4..1e0a69a5e815 100644 --- a/drivers/macintosh/therm_pm72.c +++ b/drivers/macintosh/therm_pm72.c @@ -121,6 +121,7 @@ #include <linux/reboot.h> #include <linux/kmod.h> #include <linux/i2c.h> +#include <linux/kthread.h> #include <asm/prom.h> #include <asm/machdep.h> #include <asm/io.h> @@ -161,7 +162,7 @@ static struct slots_pid_state slots_state; static int state; static int cpu_count; static int cpu_pid_type; -static pid_t ctrl_task; +static struct task_struct *ctrl_task; static struct completion ctrl_complete; static int critical_state; static int rackmac; @@ -1156,6 +1157,8 @@ static void do_monitor_cpu_rack(struct cpu_pid_state *state) */ static int init_cpu_state(struct cpu_pid_state *state, int index) { + int err; + state->index = index; state->first = 1; state->rpm = (cpu_pid_type == CPU_PID_TYPE_RACKMAC) ? 4000 : 1000; @@ -1181,18 +1184,21 @@ static int init_cpu_state(struct cpu_pid_state *state, int index) DBG("CPU %d Using %d power history entries\n", index, state->count_power); if (index == 0) { - device_create_file(&of_dev->dev, &dev_attr_cpu0_temperature); - device_create_file(&of_dev->dev, &dev_attr_cpu0_voltage); - device_create_file(&of_dev->dev, &dev_attr_cpu0_current); - device_create_file(&of_dev->dev, &dev_attr_cpu0_exhaust_fan_rpm); - device_create_file(&of_dev->dev, &dev_attr_cpu0_intake_fan_rpm); + err = device_create_file(&of_dev->dev, &dev_attr_cpu0_temperature); + err |= device_create_file(&of_dev->dev, &dev_attr_cpu0_voltage); + err |= device_create_file(&of_dev->dev, &dev_attr_cpu0_current); + err |= device_create_file(&of_dev->dev, &dev_attr_cpu0_exhaust_fan_rpm); + err |= device_create_file(&of_dev->dev, &dev_attr_cpu0_intake_fan_rpm); } else { - device_create_file(&of_dev->dev, &dev_attr_cpu1_temperature); - device_create_file(&of_dev->dev, &dev_attr_cpu1_voltage); - device_create_file(&of_dev->dev, &dev_attr_cpu1_current); - device_create_file(&of_dev->dev, &dev_attr_cpu1_exhaust_fan_rpm); - device_create_file(&of_dev->dev, &dev_attr_cpu1_intake_fan_rpm); + err = device_create_file(&of_dev->dev, &dev_attr_cpu1_temperature); + err |= device_create_file(&of_dev->dev, &dev_attr_cpu1_voltage); + err |= device_create_file(&of_dev->dev, &dev_attr_cpu1_current); + err |= device_create_file(&of_dev->dev, &dev_attr_cpu1_exhaust_fan_rpm); + err |= device_create_file(&of_dev->dev, &dev_attr_cpu1_intake_fan_rpm); } + if (err) + printk(KERN_WARNING "Failed to create some of the atribute" + "files for CPU %d\n", index); return 0; fail: @@ -1328,6 +1334,7 @@ static int init_backside_state(struct backside_pid_state *state) { struct device_node *u3; int u3h = 1; /* conservative by default */ + int err; /* * There are different PID params for machines with U3 and machines @@ -1379,8 +1386,11 @@ static int init_backside_state(struct backside_pid_state *state) if (state->monitor == NULL) return -ENODEV; - device_create_file(&of_dev->dev, &dev_attr_backside_temperature); - device_create_file(&of_dev->dev, &dev_attr_backside_fan_pwm); + err = device_create_file(&of_dev->dev, &dev_attr_backside_temperature); + err |= device_create_file(&of_dev->dev, &dev_attr_backside_fan_pwm); + if (err) + printk(KERN_WARNING "Failed to create attribute file(s)" + " for backside fan\n"); return 0; } @@ -1491,6 +1501,8 @@ static void do_monitor_drives(struct drives_pid_state *state) */ static int init_drives_state(struct drives_pid_state *state) { + int err; + state->ticks = 1; state->first = 1; state->rpm = 1000; @@ -1499,8 +1511,11 @@ static int init_drives_state(struct drives_pid_state *state) if (state->monitor == NULL) return -ENODEV; - device_create_file(&of_dev->dev, &dev_attr_drives_temperature); - device_create_file(&of_dev->dev, &dev_attr_drives_fan_rpm); + err = device_create_file(&of_dev->dev, &dev_attr_drives_temperature); + err |= device_create_file(&of_dev->dev, &dev_attr_drives_fan_rpm); + if (err) + printk(KERN_WARNING "Failed to create attribute file(s)" + " for drives bay fan\n"); return 0; } @@ -1621,7 +1636,9 @@ static int init_dimms_state(struct dimm_pid_state *state) if (state->monitor == NULL) return -ENODEV; - device_create_file(&of_dev->dev, &dev_attr_dimms_temperature); + if (device_create_file(&of_dev->dev, &dev_attr_dimms_temperature)) + printk(KERN_WARNING "Failed to create attribute file" + " for DIMM temperature\n"); return 0; } @@ -1731,6 +1748,8 @@ static void do_monitor_slots(struct slots_pid_state *state) */ static int init_slots_state(struct slots_pid_state *state) { + int err; + state->ticks = 1; state->first = 1; state->pwm = 50; @@ -1739,8 +1758,11 @@ static int init_slots_state(struct slots_pid_state *state) if (state->monitor == NULL) return -ENODEV; - device_create_file(&of_dev->dev, &dev_attr_slots_temperature); - device_create_file(&of_dev->dev, &dev_attr_slots_fan_pwm); + err = device_create_file(&of_dev->dev, &dev_attr_slots_temperature); + err |= device_create_file(&of_dev->dev, &dev_attr_slots_fan_pwm); + if (err) + printk(KERN_WARNING "Failed to create attribute file(s)" + " for slots bay fan\n"); return 0; } @@ -1779,8 +1801,6 @@ static int call_critical_overtemp(void) */ static int main_control_loop(void *x) { - daemonize("kfand"); - DBG("main_control_loop started\n"); down(&driver_lock); @@ -1956,7 +1976,7 @@ static void start_control_loops(void) { init_completion(&ctrl_complete); - ctrl_task = kernel_thread(main_control_loop, NULL, SIGCHLD | CLONE_KERNEL); + ctrl_task = kthread_run(main_control_loop, NULL, "kfand"); } /* @@ -1964,7 +1984,7 @@ static void start_control_loops(void) */ static void stop_control_loops(void) { - if (ctrl_task != 0) + if (ctrl_task) wait_for_completion(&ctrl_complete); } diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c index b66da74caa55..d11821af3b8d 100644 --- a/drivers/macintosh/therm_windtunnel.c +++ b/drivers/macintosh/therm_windtunnel.c @@ -36,6 +36,7 @@ #include <linux/i2c.h> #include <linux/slab.h> #include <linux/init.h> +#include <linux/kthread.h> #include <asm/prom.h> #include <asm/machdep.h> @@ -59,8 +60,7 @@ I2C_CLIENT_INSMOD; static struct { volatile int running; - struct completion completion; - pid_t poll_task; + struct task_struct *poll_task; struct semaphore lock; struct of_device *of_dev; @@ -221,6 +221,7 @@ static void setup_hardware( void ) { int val; + int err; /* save registers (if we unload the module) */ x.r0 = read_reg( x.fan, 0x00, 1 ); @@ -263,8 +264,11 @@ setup_hardware( void ) x.upind = -1; /* tune_fan( fan_up_table[x.upind].fan_setting ); */ - device_create_file( &x.of_dev->dev, &dev_attr_cpu_temperature ); - device_create_file( &x.of_dev->dev, &dev_attr_case_temperature ); + err = device_create_file( &x.of_dev->dev, &dev_attr_cpu_temperature ); + err |= device_create_file( &x.of_dev->dev, &dev_attr_case_temperature ); + if (err) + printk(KERN_WARNING + "Failed to create temperature attribute file(s).\n"); } static void @@ -280,27 +284,27 @@ restore_regs( void ) write_reg( x.fan, 0x00, x.r0, 1 ); } -static int -control_loop( void *dummy ) +static int control_loop(void *dummy) { - daemonize("g4fand"); - - down( &x.lock ); + down(&x.lock); setup_hardware(); + up(&x.lock); - while( x.running ) { - up( &x.lock ); - + for (;;) { msleep_interruptible(8000); - - down( &x.lock ); + if (kthread_should_stop()) + break; + + down(&x.lock); poll_temp(); + up(&x.lock); } + down(&x.lock); restore_regs(); - up( &x.lock ); + up(&x.lock); - complete_and_exit( &x.completion, 0 ); + return 0; } @@ -320,8 +324,7 @@ do_attach( struct i2c_adapter *adapter ) ret = i2c_probe( adapter, &addr_data, &do_probe ); if( x.thermostat && x.fan ) { x.running = 1; - init_completion( &x.completion ); - x.poll_task = kernel_thread( control_loop, NULL, SIGCHLD | CLONE_KERNEL ); + x.poll_task = kthread_run(control_loop, NULL, "g4fand"); } } return ret; @@ -337,7 +340,8 @@ do_detach( struct i2c_client *client ) else { if( x.running ) { x.running = 0; - wait_for_completion( &x.completion ); + kthread_stop(x.poll_task); + x.poll_task = NULL; } if( client == x.thermostat ) x.thermostat = NULL; diff --git a/drivers/macintosh/via-pmu-backlight.c b/drivers/macintosh/via-pmu-backlight.c index 7e27071746e4..741a2e3f4fc6 100644 --- a/drivers/macintosh/via-pmu-backlight.c +++ b/drivers/macintosh/via-pmu-backlight.c @@ -22,7 +22,7 @@ static u8 bl_curve[FB_BACKLIGHT_LEVELS]; static void pmu_backlight_init_curve(u8 off, u8 min, u8 max) { - unsigned int i, flat, count, range = (max - min); + int i, flat, count, range = (max - min); bl_curve[0] = off; @@ -68,17 +68,11 @@ static int pmu_backlight_get_level_brightness(int level) return pmulevel; } -static int pmu_backlight_update_status(struct backlight_device *bd) +static int __pmu_backlight_update_status(struct backlight_device *bd) { struct adb_request req; - unsigned long flags; int level = bd->props.brightness; - spin_lock_irqsave(&pmu_backlight_lock, flags); - - /* Don't update brightness when sleeping */ - if (sleeping) - goto out; if (bd->props.power != FB_BLANK_UNBLANK || bd->props.fb_blank != FB_BLANK_UNBLANK) @@ -99,12 +93,23 @@ static int pmu_backlight_update_status(struct backlight_device *bd) pmu_wait_complete(&req); } -out: - spin_unlock_irqrestore(&pmu_backlight_lock, flags); - return 0; } +static int pmu_backlight_update_status(struct backlight_device *bd) +{ + unsigned long flags; + int rc = 0; + + spin_lock_irqsave(&pmu_backlight_lock, flags); + /* Don't update brightness when sleeping */ + if (!sleeping) + rc = __pmu_backlight_update_status(bd); + spin_unlock_irqrestore(&pmu_backlight_lock, flags); + return rc; +} + + static int pmu_backlight_get_brightness(struct backlight_device *bd) { return bd->props.brightness; @@ -123,6 +128,16 @@ void pmu_backlight_set_sleep(int sleep) spin_lock_irqsave(&pmu_backlight_lock, flags); sleeping = sleep; + if (pmac_backlight) { + if (sleep) { + struct adb_request req; + + pmu_request(&req, NULL, 2, PMU_POWER_CTRL, + PMU_POW_BACKLIGHT | PMU_POW_OFF); + pmu_wait_complete(&req); + } else + __pmu_backlight_update_status(pmac_backlight); + } spin_unlock_irqrestore(&pmu_backlight_lock, flags); } #endif /* CONFIG_PM */ @@ -148,8 +163,8 @@ void __init pmu_backlight_init() bd = backlight_device_register(name, NULL, NULL, &pmu_backlight_data); if (IS_ERR(bd)) { - printk("pmubl: Backlight registration failed\n"); - goto error; + printk(KERN_ERR "PMU Backlight registration failed\n"); + return; } bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1; pmu_backlight_init_curve(0x7F, 0x46, 0x0E); @@ -171,10 +186,5 @@ void __init pmu_backlight_init() bd->props.power = FB_BLANK_UNBLANK; backlight_update_status(bd); - printk("pmubl: Backlight initialized (%s)\n", name); - - return; - -error: - return; + printk(KERN_INFO "PMU Backlight initialized (%s)\n", name); } diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index ac420b17e16f..ebec663d5d37 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -10,13 +10,11 @@ * * Copyright (C) 1998 Paul Mackerras and Fabio Riccardi. * Copyright (C) 2001-2002 Benjamin Herrenschmidt + * Copyright (C) 2006-2007 Johannes Berg * * THIS DRIVER IS BECOMING A TOTAL MESS ! * - Cleanup atomically disabling reply to PMU events after * a sleep or a freq. switch - * - Move sleep code out of here to pmac_pm, merge into new - * common PM infrastructure - * - Save/Restore PCI space properly * */ #include <stdarg.h> @@ -33,7 +31,6 @@ #include <linux/adb.h> #include <linux/pmu.h> #include <linux/cuda.h> -#include <linux/smp_lock.h> #include <linux/module.h> #include <linux/spinlock.h> #include <linux/pm.h> @@ -65,9 +62,7 @@ #include "via-pmu-event.h" /* Some compile options */ -#undef SUSPEND_USES_PMU -#define DEBUG_SLEEP -#undef HACKED_PCI_SAVE +#undef DEBUG_SLEEP /* Misc minor number allocated for /dev/pmu */ #define PMU_MINOR 154 @@ -152,12 +147,9 @@ static spinlock_t pmu_lock; static u8 pmu_intr_mask; static int pmu_version; static int drop_interrupts; -#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32) +#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) static int option_lid_wakeup = 1; -#endif /* CONFIG_PM_SLEEP && CONFIG_PPC32 */ -#if (defined(CONFIG_PM_SLEEP)&&defined(CONFIG_PPC32))||defined(CONFIG_PMAC_BACKLIGHT_LEGACY) -static int sleep_in_progress; -#endif +#endif /* CONFIG_SUSPEND && CONFIG_PPC32 */ static unsigned long async_req_locks; static unsigned int pmu_irq_stats[11]; @@ -177,7 +169,6 @@ static struct proc_dir_entry *proc_pmu_batt[PMU_MAX_BATTERIES]; int __fake_sleep; int asleep; -BLOCKING_NOTIFIER_HEAD(sleep_notifier_list); #ifdef CONFIG_ADB static int adb_dev_map; @@ -224,7 +215,7 @@ extern void enable_kernel_fp(void); #ifdef DEBUG_SLEEP int pmu_polled_request(struct adb_request *req); -int pmu_wink(struct adb_request *req); +void pmu_blink(int n); #endif /* @@ -875,7 +866,7 @@ proc_read_options(char *page, char **start, off_t off, { char *p = page; -#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32) +#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) if (pmu_kind == PMU_KEYLARGO_BASED && pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,-1) >= 0) p += sprintf(p, "lid_wakeup=%d\n", option_lid_wakeup); @@ -916,7 +907,7 @@ proc_write_options(struct file *file, const char __user *buffer, *(val++) = 0; while(*val == ' ') val++; -#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32) +#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) if (pmu_kind == PMU_KEYLARGO_BASED && pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,-1) >= 0) if (!strcmp(label, "lid_wakeup")) @@ -1256,9 +1247,7 @@ void pmu_suspend(void) { unsigned long flags; -#ifdef SUSPEND_USES_PMU - struct adb_request *req; -#endif + if (!via) return; @@ -1276,17 +1265,10 @@ pmu_suspend(void) via_pmu_interrupt(0, NULL); spin_lock_irqsave(&pmu_lock, flags); if (!adb_int_pending && pmu_state == idle && !req_awaiting_reply) { -#ifdef SUSPEND_USES_PMU - pmu_request(&req, NULL, 2, PMU_SET_INTR_MASK, 0); - spin_unlock_irqrestore(&pmu_lock, flags); - while(!req.complete) - pmu_poll(); -#else /* SUSPEND_USES_PMU */ if (gpio_irq >= 0) disable_irq_nosync(gpio_irq); out_8(&via[IER], CB1_INT | IER_CLR); spin_unlock_irqrestore(&pmu_lock, flags); -#endif /* SUSPEND_USES_PMU */ break; } } while (1); @@ -1307,18 +1289,11 @@ pmu_resume(void) return; } adb_int_pending = 1; -#ifdef SUSPEND_USES_PMU - pmu_request(&req, NULL, 2, PMU_SET_INTR_MASK, pmu_intr_mask); - spin_unlock_irqrestore(&pmu_lock, flags); - while(!req.complete) - pmu_poll(); -#else /* SUSPEND_USES_PMU */ if (gpio_irq >= 0) enable_irq(gpio_irq); out_8(&via[IER], CB1_INT | IER_SET); spin_unlock_irqrestore(&pmu_lock, flags); pmu_poll(); -#endif /* SUSPEND_USES_PMU */ } /* Interrupt data could be the result data from an ADB cmd */ @@ -1738,228 +1713,7 @@ pmu_present(void) return via != 0; } -#ifdef CONFIG_PM_SLEEP - -static LIST_HEAD(sleep_notifiers); - -int -pmu_register_sleep_notifier(struct pmu_sleep_notifier *n) -{ - struct list_head *list; - struct pmu_sleep_notifier *notifier; - - for (list = sleep_notifiers.next; list != &sleep_notifiers; - list = list->next) { - notifier = list_entry(list, struct pmu_sleep_notifier, list); - if (n->priority > notifier->priority) - break; - } - __list_add(&n->list, list->prev, list); - return 0; -} -EXPORT_SYMBOL(pmu_register_sleep_notifier); - -int -pmu_unregister_sleep_notifier(struct pmu_sleep_notifier* n) -{ - if (n->list.next == 0) - return -ENOENT; - list_del(&n->list); - n->list.next = NULL; - return 0; -} -EXPORT_SYMBOL(pmu_unregister_sleep_notifier); -#endif /* CONFIG_PM_SLEEP */ - -#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32) - -/* Sleep is broadcast last-to-first */ -static void broadcast_sleep(int when) -{ - struct list_head *list; - struct pmu_sleep_notifier *notifier; - - for (list = sleep_notifiers.prev; list != &sleep_notifiers; - list = list->prev) { - notifier = list_entry(list, struct pmu_sleep_notifier, list); - notifier->notifier_call(notifier, when); - } -} - -/* Wake is broadcast first-to-last */ -static void broadcast_wake(void) -{ - struct list_head *list; - struct pmu_sleep_notifier *notifier; - - for (list = sleep_notifiers.next; list != &sleep_notifiers; - list = list->next) { - notifier = list_entry(list, struct pmu_sleep_notifier, list); - notifier->notifier_call(notifier, PBOOK_WAKE); - } -} - -/* - * This struct is used to store config register values for - * PCI devices which may get powered off when we sleep. - */ -static struct pci_save { -#ifndef HACKED_PCI_SAVE - u16 command; - u16 cache_lat; - u16 intr; - u32 rom_address; -#else - u32 config[16]; -#endif -} *pbook_pci_saves; -static int pbook_npci_saves; - -static void -pbook_alloc_pci_save(void) -{ - int npci; - struct pci_dev *pd = NULL; - - npci = 0; - while ((pd = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pd)) != NULL) { - ++npci; - } - if (npci == 0) - return; - pbook_pci_saves = (struct pci_save *) - kmalloc(npci * sizeof(struct pci_save), GFP_KERNEL); - pbook_npci_saves = npci; -} - -static void -pbook_free_pci_save(void) -{ - if (pbook_pci_saves == NULL) - return; - kfree(pbook_pci_saves); - pbook_pci_saves = NULL; - pbook_npci_saves = 0; -} - -static void -pbook_pci_save(void) -{ - struct pci_save *ps = pbook_pci_saves; - struct pci_dev *pd = NULL; - int npci = pbook_npci_saves; - - if (ps == NULL) - return; - - while ((pd = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pd)) != NULL) { - if (npci-- == 0) { - pci_dev_put(pd); - return; - } -#ifndef HACKED_PCI_SAVE - pci_read_config_word(pd, PCI_COMMAND, &ps->command); - pci_read_config_word(pd, PCI_CACHE_LINE_SIZE, &ps->cache_lat); - pci_read_config_word(pd, PCI_INTERRUPT_LINE, &ps->intr); - pci_read_config_dword(pd, PCI_ROM_ADDRESS, &ps->rom_address); -#else - int i; - for (i=1;i<16;i++) - pci_read_config_dword(pd, i<<4, &ps->config[i]); -#endif - ++ps; - } -} - -/* For this to work, we must take care of a few things: If gmac was enabled - * during boot, it will be in the pci dev list. If it's disabled at this point - * (and it will probably be), then you can't access it's config space. - */ -static void -pbook_pci_restore(void) -{ - u16 cmd; - struct pci_save *ps = pbook_pci_saves - 1; - struct pci_dev *pd = NULL; - int npci = pbook_npci_saves; - int j; - - while ((pd = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pd)) != NULL) { -#ifdef HACKED_PCI_SAVE - int i; - if (npci-- == 0) { - pci_dev_put(pd); - return; - } - ps++; - for (i=2;i<16;i++) - pci_write_config_dword(pd, i<<4, ps->config[i]); - pci_write_config_dword(pd, 4, ps->config[1]); -#else - if (npci-- == 0) - return; - ps++; - if (ps->command == 0) - continue; - pci_read_config_word(pd, PCI_COMMAND, &cmd); - if ((ps->command & ~cmd) == 0) - continue; - switch (pd->hdr_type) { - case PCI_HEADER_TYPE_NORMAL: - for (j = 0; j < 6; ++j) - pci_write_config_dword(pd, - PCI_BASE_ADDRESS_0 + j*4, - pd->resource[j].start); - pci_write_config_dword(pd, PCI_ROM_ADDRESS, - ps->rom_address); - pci_write_config_word(pd, PCI_CACHE_LINE_SIZE, - ps->cache_lat); - pci_write_config_word(pd, PCI_INTERRUPT_LINE, - ps->intr); - pci_write_config_word(pd, PCI_COMMAND, ps->command); - break; - } -#endif - } -} - -#ifdef DEBUG_SLEEP -/* N.B. This doesn't work on the 3400 */ -void -pmu_blink(int n) -{ - struct adb_request req; - - memset(&req, 0, sizeof(req)); - - for (; n > 0; --n) { - req.nbytes = 4; - req.done = NULL; - req.data[0] = 0xee; - req.data[1] = 4; - req.data[2] = 0; - req.data[3] = 1; - req.reply[0] = ADB_RET_OK; - req.reply_len = 1; - req.reply_expected = 0; - pmu_polled_request(&req); - mdelay(50); - req.nbytes = 4; - req.done = NULL; - req.data[0] = 0xee; - req.data[1] = 4; - req.data[2] = 0; - req.data[3] = 0; - req.reply[0] = ADB_RET_OK; - req.reply_len = 1; - req.reply_expected = 0; - pmu_polled_request(&req); - mdelay(50); - } - mdelay(50); -} -#endif - +#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) /* * Put the powerbook to sleep. */ @@ -1994,134 +1748,6 @@ restore_via_state(void) out_8(&via[IER], IER_SET | SR_INT | CB1_INT); } -extern void pmu_backlight_set_sleep(int sleep); - -static int -pmac_suspend_devices(void) -{ - int ret; - - pm_prepare_console(); - - /* Notify old-style device drivers */ - broadcast_sleep(PBOOK_SLEEP_REQUEST); - - /* Sync the disks. */ - /* XXX It would be nice to have some way to ensure that - * nobody is dirtying any new buffers while we wait. That - * could be achieved using the refrigerator for processes - * that swsusp uses - */ - sys_sync(); - - broadcast_sleep(PBOOK_SLEEP_NOW); - - /* Send suspend call to devices, hold the device core's dpm_sem */ - ret = device_suspend(PMSG_SUSPEND); - if (ret) { - broadcast_wake(); - printk(KERN_ERR "Driver sleep failed\n"); - return -EBUSY; - } - -#ifdef CONFIG_PMAC_BACKLIGHT - /* Tell backlight code not to muck around with the chip anymore */ - pmu_backlight_set_sleep(1); -#endif - - /* Call platform functions marked "on sleep" */ - pmac_pfunc_i2c_suspend(); - pmac_pfunc_base_suspend(); - - /* Stop preemption */ - preempt_disable(); - - /* Make sure the decrementer won't interrupt us */ - asm volatile("mtdec %0" : : "r" (0x7fffffff)); - /* Make sure any pending DEC interrupt occurring while we did - * the above didn't re-enable the DEC */ - mb(); - asm volatile("mtdec %0" : : "r" (0x7fffffff)); - - /* We can now disable MSR_EE. This code of course works properly only - * on UP machines... For SMP, if we ever implement sleep, we'll have to - * stop the "other" CPUs way before we do all that stuff. - */ - local_irq_disable(); - - /* Broadcast power down irq - * This isn't that useful in most cases (only directly wired devices can - * use this but still... This will take care of sysdev's as well, so - * we exit from here with local irqs disabled and PIC off. - */ - ret = device_power_down(PMSG_SUSPEND); - if (ret) { - wakeup_decrementer(); - local_irq_enable(); - preempt_enable(); - device_resume(); - broadcast_wake(); - printk(KERN_ERR "Driver powerdown failed\n"); - return -EBUSY; - } - - /* Wait for completion of async requests */ - while (!batt_req.complete) - pmu_poll(); - - /* Giveup the lazy FPU & vec so we don't have to back them - * up from the low level code - */ - enable_kernel_fp(); - -#ifdef CONFIG_ALTIVEC - if (cpu_has_feature(CPU_FTR_ALTIVEC)) - enable_kernel_altivec(); -#endif /* CONFIG_ALTIVEC */ - - return 0; -} - -static int -pmac_wakeup_devices(void) -{ - mdelay(100); - -#ifdef CONFIG_PMAC_BACKLIGHT - /* Tell backlight code it can use the chip again */ - pmu_backlight_set_sleep(0); -#endif - - /* Power back up system devices (including the PIC) */ - device_power_up(); - - /* Force a poll of ADB interrupts */ - adb_int_pending = 1; - via_pmu_interrupt(0, NULL); - - /* Restart jiffies & scheduling */ - wakeup_decrementer(); - - /* Re-enable local CPU interrupts */ - local_irq_enable(); - mdelay(10); - preempt_enable(); - - /* Call platform functions marked "on wake" */ - pmac_pfunc_base_resume(); - pmac_pfunc_i2c_resume(); - - /* Resume devices */ - device_resume(); - - /* Notify old style drivers */ - broadcast_wake(); - - pm_restore_console(); - - return 0; -} - #define GRACKLE_PM (1<<7) #define GRACKLE_DOZE (1<<5) #define GRACKLE_NAP (1<<4) @@ -2132,19 +1758,12 @@ static int powerbook_sleep_grackle(void) unsigned long save_l2cr; unsigned short pmcr1; struct adb_request req; - int ret; struct pci_dev *grackle; grackle = pci_get_bus_and_slot(0, 0); if (!grackle) return -ENODEV; - ret = pmac_suspend_devices(); - if (ret) { - printk(KERN_ERR "Sleep rejected by devices\n"); - return ret; - } - /* Turn off various things. Darwin does some retry tests here... */ pmu_request(&req, NULL, 2, PMU_POWER_CTRL0, PMU_POW0_OFF|PMU_POW0_HARD_DRIVE); pmu_wait_complete(&req); @@ -2207,8 +1826,6 @@ static int powerbook_sleep_grackle(void) PMU_POW_ON|PMU_POW_BACKLIGHT|PMU_POW_CHARGER|PMU_POW_IRLED|PMU_POW_MEDIABAY); pmu_wait_complete(&req); - pmac_wakeup_devices(); - return 0; } @@ -2218,7 +1835,6 @@ powerbook_sleep_Core99(void) unsigned long save_l2cr; unsigned long save_l3cr; struct adb_request req; - int ret; if (pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,-1) < 0) { printk(KERN_ERR "Sleep mode not supported on this machine\n"); @@ -2228,12 +1844,6 @@ powerbook_sleep_Core99(void) if (num_online_cpus() > 1 || cpu_is_offline(0)) return -EAGAIN; - ret = pmac_suspend_devices(); - if (ret) { - printk(KERN_ERR "Sleep rejected by devices\n"); - return ret; - } - /* Stop environment and ADB interrupts */ pmu_request(&req, NULL, 2, PMU_SET_INTR_MASK, 0); pmu_wait_complete(&req); @@ -2304,45 +1914,33 @@ powerbook_sleep_Core99(void) /* Restore LPJ, cpufreq will adjust the cpu frequency */ loops_per_jiffy /= 2; - pmac_wakeup_devices(); - return 0; } #define PB3400_MEM_CTRL 0xf8000000 #define PB3400_MEM_CTRL_SLEEP 0x70 -static int -powerbook_sleep_3400(void) +static void __iomem *pb3400_mem_ctrl; + +static void powerbook_sleep_init_3400(void) +{ + /* map in the memory controller registers */ + pb3400_mem_ctrl = ioremap(PB3400_MEM_CTRL, 0x100); + if (pb3400_mem_ctrl == NULL) + printk(KERN_WARNING "ioremap failed: sleep won't be possible"); +} + +static int powerbook_sleep_3400(void) { - int ret, i, x; + int i, x; unsigned int hid0; - unsigned long p; + unsigned long msr; struct adb_request sleep_req; - void __iomem *mem_ctrl; unsigned int __iomem *mem_ctrl_sleep; - /* first map in the memory controller registers */ - mem_ctrl = ioremap(PB3400_MEM_CTRL, 0x100); - if (mem_ctrl == NULL) { - printk("powerbook_sleep_3400: ioremap failed\n"); + if (pb3400_mem_ctrl == NULL) return -ENOMEM; - } - mem_ctrl_sleep = mem_ctrl + PB3400_MEM_CTRL_SLEEP; - - /* Allocate room for PCI save */ - pbook_alloc_pci_save(); - - ret = pmac_suspend_devices(); - if (ret) { - pbook_free_pci_save(); - iounmap(mem_ctrl); - printk(KERN_ERR "Sleep rejected by devices\n"); - return ret; - } - - /* Save the state of PCI config space for some slots */ - pbook_pci_save(); + mem_ctrl_sleep = pb3400_mem_ctrl + PB3400_MEM_CTRL_SLEEP; /* Set the memory controller to keep the memory refreshed while we're asleep */ @@ -2357,41 +1955,34 @@ powerbook_sleep_3400(void) /* Ask the PMU to put us to sleep */ pmu_request(&sleep_req, NULL, 5, PMU_SLEEP, 'M', 'A', 'T', 'T'); - while (!sleep_req.complete) - mb(); + pmu_wait_complete(&sleep_req); + pmu_unlock(); - pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,1); + pmac_call_feature(PMAC_FTR_SLEEP_STATE, NULL, 0, 1); - /* displacement-flush the L2 cache - necessary? */ - for (p = KERNELBASE; p < KERNELBASE + 0x100000; p += 0x1000) - i = *(volatile int *)p; asleep = 1; /* Put the CPU into sleep mode */ hid0 = mfspr(SPRN_HID0); hid0 = (hid0 & ~(HID0_NAP | HID0_DOZE)) | HID0_SLEEP; mtspr(SPRN_HID0, hid0); - mtmsr(mfmsr() | MSR_POW | MSR_EE); - udelay(10); + local_irq_enable(); + msr = mfmsr() | MSR_POW; + while (asleep) { + mb(); + mtmsr(msr); + isync(); + } + local_irq_disable(); /* OK, we're awake again, start restoring things */ out_be32(mem_ctrl_sleep, 0x3f); - pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,0); - pbook_pci_restore(); - pmu_unlock(); - - /* wait for the PMU interrupt sequence to complete */ - while (asleep) - mb(); - - pmac_wakeup_devices(); - pbook_free_pci_save(); - iounmap(mem_ctrl); + pmac_call_feature(PMAC_FTR_SLEEP_STATE, NULL, 0, 0); return 0; } -#endif /* CONFIG_PM_SLEEP && CONFIG_PPC32 */ +#endif /* CONFIG_SUSPEND && CONFIG_PPC32 */ /* * Support for /dev/pmu device @@ -2548,7 +2139,6 @@ pmu_release(struct inode *inode, struct file *file) struct pmu_private *pp = file->private_data; unsigned long flags; - lock_kernel(); if (pp != 0) { file->private_data = NULL; spin_lock_irqsave(&all_pvt_lock, flags); @@ -2562,10 +2152,96 @@ pmu_release(struct inode *inode, struct file *file) kfree(pp); } - unlock_kernel(); return 0; } +#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) +static void pmac_suspend_disable_irqs(void) +{ + /* Call platform functions marked "on sleep" */ + pmac_pfunc_i2c_suspend(); + pmac_pfunc_base_suspend(); +} + +static int powerbook_sleep(suspend_state_t state) +{ + int error = 0; + + /* Wait for completion of async requests */ + while (!batt_req.complete) + pmu_poll(); + + /* Giveup the lazy FPU & vec so we don't have to back them + * up from the low level code + */ + enable_kernel_fp(); + +#ifdef CONFIG_ALTIVEC + if (cpu_has_feature(CPU_FTR_ALTIVEC)) + enable_kernel_altivec(); +#endif /* CONFIG_ALTIVEC */ + + switch (pmu_kind) { + case PMU_OHARE_BASED: + error = powerbook_sleep_3400(); + break; + case PMU_HEATHROW_BASED: + case PMU_PADDINGTON_BASED: + error = powerbook_sleep_grackle(); + break; + case PMU_KEYLARGO_BASED: + error = powerbook_sleep_Core99(); + break; + default: + return -ENOSYS; + } + + if (error) + return error; + + mdelay(100); + + return 0; +} + +static void pmac_suspend_enable_irqs(void) +{ + /* Force a poll of ADB interrupts */ + adb_int_pending = 1; + via_pmu_interrupt(0, NULL); + + mdelay(10); + + /* Call platform functions marked "on wake" */ + pmac_pfunc_base_resume(); + pmac_pfunc_i2c_resume(); +} + +static int pmu_sleep_valid(suspend_state_t state) +{ + return state == PM_SUSPEND_MEM + && (pmac_call_feature(PMAC_FTR_SLEEP_STATE, NULL, 0, -1) >= 0); +} + +static struct platform_suspend_ops pmu_pm_ops = { + .enter = powerbook_sleep, + .valid = pmu_sleep_valid, +}; + +static int register_pmu_pm_ops(void) +{ + if (pmu_kind == PMU_OHARE_BASED) + powerbook_sleep_init_3400(); + ppc_md.suspend_disable_irqs = pmac_suspend_disable_irqs; + ppc_md.suspend_enable_irqs = pmac_suspend_enable_irqs; + suspend_set_ops(&pmu_pm_ops); + + return 0; +} + +device_initcall(register_pmu_pm_ops); +#endif + static int pmu_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) @@ -2574,35 +2250,15 @@ pmu_ioctl(struct inode * inode, struct file *filp, int error = -EINVAL; switch (cmd) { -#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32) case PMU_IOC_SLEEP: if (!capable(CAP_SYS_ADMIN)) return -EACCES; - if (sleep_in_progress) - return -EBUSY; - sleep_in_progress = 1; - switch (pmu_kind) { - case PMU_OHARE_BASED: - error = powerbook_sleep_3400(); - break; - case PMU_HEATHROW_BASED: - case PMU_PADDINGTON_BASED: - error = powerbook_sleep_grackle(); - break; - case PMU_KEYLARGO_BASED: - error = powerbook_sleep_Core99(); - break; - default: - error = -ENOSYS; - } - sleep_in_progress = 0; - break; + return pm_suspend(PM_SUSPEND_MEM); case PMU_IOC_CAN_SLEEP: - if (pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,-1) < 0) + if (pmac_call_feature(PMAC_FTR_SLEEP_STATE, NULL, 0, -1) < 0) return put_user(0, argp); else return put_user(1, argp); -#endif /* CONFIG_PM_SLEEP && CONFIG_PPC32 */ #ifdef CONFIG_PMAC_BACKLIGHT_LEGACY /* Compatibility ioctl's for backlight */ @@ -2610,9 +2266,6 @@ pmu_ioctl(struct inode * inode, struct file *filp, { int brightness; - if (sleep_in_progress) - return -EBUSY; - brightness = pmac_backlight_get_legacy_brightness(); if (brightness < 0) return brightness; @@ -2624,9 +2277,6 @@ pmu_ioctl(struct inode * inode, struct file *filp, { int brightness; - if (sleep_in_progress) - return -EBUSY; - error = get_user(brightness, argp); if (error) return error; @@ -2751,15 +2401,43 @@ pmu_polled_request(struct adb_request *req) local_irq_restore(flags); return 0; } -#endif /* DEBUG_SLEEP */ +/* N.B. This doesn't work on the 3400 */ +void pmu_blink(int n) +{ + struct adb_request req; -/* FIXME: This is a temporary set of callbacks to enable us - * to do suspend-to-disk. - */ + memset(&req, 0, sizeof(req)); -#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32) + for (; n > 0; --n) { + req.nbytes = 4; + req.done = NULL; + req.data[0] = 0xee; + req.data[1] = 4; + req.data[2] = 0; + req.data[3] = 1; + req.reply[0] = ADB_RET_OK; + req.reply_len = 1; + req.reply_expected = 0; + pmu_polled_request(&req); + mdelay(50); + req.nbytes = 4; + req.done = NULL; + req.data[0] = 0xee; + req.data[1] = 4; + req.data[2] = 0; + req.data[3] = 0; + req.reply[0] = ADB_RET_OK; + req.reply_len = 1; + req.reply_expected = 0; + pmu_polled_request(&req); + mdelay(50); + } + mdelay(50); +} +#endif /* DEBUG_SLEEP */ +#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) int pmu_sys_suspended; static int pmu_sys_suspend(struct sys_device *sysdev, pm_message_t state) @@ -2767,10 +2445,15 @@ static int pmu_sys_suspend(struct sys_device *sysdev, pm_message_t state) if (state.event != PM_EVENT_SUSPEND || pmu_sys_suspended) return 0; - /* Suspend PMU event interrupts */ + /* Suspend PMU event interrupts */\ pmu_suspend(); - pmu_sys_suspended = 1; + +#ifdef CONFIG_PMAC_BACKLIGHT + /* Tell backlight code not to muck around with the chip anymore */ + pmu_backlight_set_sleep(1); +#endif + return 0; } @@ -2785,15 +2468,18 @@ static int pmu_sys_resume(struct sys_device *sysdev) pmu_request(&req, NULL, 2, PMU_SYSTEM_READY, 2); pmu_wait_complete(&req); +#ifdef CONFIG_PMAC_BACKLIGHT + /* Tell backlight code it can use the chip again */ + pmu_backlight_set_sleep(0); +#endif /* Resume PMU event interrupts */ pmu_resume(); - pmu_sys_suspended = 0; return 0; } -#endif /* CONFIG_PM_SLEEP && CONFIG_PPC32 */ +#endif /* CONFIG_SUSPEND && CONFIG_PPC32 */ static struct sysdev_class pmu_sysclass = { .name = "pmu", @@ -2804,10 +2490,10 @@ static struct sys_device device_pmu = { }; static struct sysdev_driver driver_pmu = { -#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32) +#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) .suspend = &pmu_sys_suspend, .resume = &pmu_sys_resume, -#endif /* CONFIG_PM_SLEEP && CONFIG_PPC32 */ +#endif /* CONFIG_SUSPEND && CONFIG_PPC32 */ }; static int __init init_pmu_sysfs(void) @@ -2842,10 +2528,10 @@ EXPORT_SYMBOL(pmu_wait_complete); EXPORT_SYMBOL(pmu_suspend); EXPORT_SYMBOL(pmu_resume); EXPORT_SYMBOL(pmu_unlock); -#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_PPC32) +#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) EXPORT_SYMBOL(pmu_enable_irled); EXPORT_SYMBOL(pmu_battery_count); EXPORT_SYMBOL(pmu_batteries); EXPORT_SYMBOL(pmu_power_flags); -#endif /* CONFIG_PM_SLEEP && CONFIG_PPC32 */ +#endif /* CONFIG_SUSPEND && CONFIG_PPC32 */ diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 6c575403bd39..389980f0e59e 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2356,7 +2356,7 @@ config GELIC_NET config GIANFAR tristate "Gianfar Ethernet" - depends on 85xx || 83xx || PPC_86xx + depends on FSL_SOC select PHYLIB select CRC32 help diff --git a/drivers/net/fec_8xx/fec_8xx-netta.c b/drivers/net/fec_8xx/fec_8xx-netta.c index e492eb84f948..79deee222e28 100644 --- a/drivers/net/fec_8xx/fec_8xx-netta.c +++ b/drivers/net/fec_8xx/fec_8xx-netta.c @@ -26,7 +26,7 @@ #include <asm/mpc8xx.h> #include <asm/irq.h> #include <asm/uaccess.h> -#include <asm/commproc.h> +#include <asm/cpm1.h> #include "fec_8xx.h" diff --git a/drivers/net/fec_8xx/fec_main.c b/drivers/net/fec_8xx/fec_main.c index ab9637ab3a8d..ca8d2e83ab03 100644 --- a/drivers/net/fec_8xx/fec_main.c +++ b/drivers/net/fec_8xx/fec_main.c @@ -35,7 +35,7 @@ #include <asm/mpc8xx.h> #include <asm/irq.h> #include <asm/uaccess.h> -#include <asm/commproc.h> +#include <asm/cpm1.h> #include "fec_8xx.h" diff --git a/drivers/net/fec_8xx/fec_mii.c b/drivers/net/fec_8xx/fec_mii.c index e8e10a02d202..3b6ca29d31f2 100644 --- a/drivers/net/fec_8xx/fec_mii.c +++ b/drivers/net/fec_8xx/fec_mii.c @@ -34,7 +34,7 @@ #include <asm/mpc8xx.h> #include <asm/irq.h> #include <asm/uaccess.h> -#include <asm/commproc.h> +#include <asm/cpm1.h> /*************************************************/ diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c index f91ee700e605..58b71e60204e 100644 --- a/drivers/net/fec_mpc52xx.c +++ b/drivers/net/fec_mpc52xx.c @@ -1057,10 +1057,8 @@ static int mpc52xx_fec_of_resume(struct of_device *op) #endif static struct of_device_id mpc52xx_fec_match[] = { - { - .type = "network", - .compatible = "mpc5200-fec", - }, + { .type = "network", .compatible = "fsl,mpc5200-fec", }, + { .type = "network", .compatible = "mpc5200-fec", }, { } }; diff --git a/drivers/net/fec_mpc52xx_phy.c b/drivers/net/fec_mpc52xx_phy.c index ba6e8b218e0a..1837584c4504 100644 --- a/drivers/net/fec_mpc52xx_phy.c +++ b/drivers/net/fec_mpc52xx_phy.c @@ -177,11 +177,9 @@ static int mpc52xx_fec_mdio_remove(struct of_device *of) static struct of_device_id mpc52xx_fec_mdio_match[] = { - { - .type = "mdio", - .compatible = "mpc5200b-fec-phy", - }, - {}, + { .compatible = "fsl,mpc5200b-mdio", }, + { .compatible = "mpc5200b-fec-phy", }, + {} }; struct of_platform_driver mpc52xx_fec_mdio_driver = { diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c index c83bd6560088..42d94edeee26 100644 --- a/drivers/net/fs_enet/fs_enet-main.c +++ b/drivers/net/fs_enet/fs_enet-main.c @@ -1178,8 +1178,15 @@ static int __devinit find_phy(struct device_node *np, struct device_node *phynode, *mdionode; struct resource res; int ret = 0, len; + const u32 *data; + + data = of_get_property(np, "fixed-link", NULL); + if (data) { + snprintf(fpi->bus_id, 16, PHY_ID_FMT, 0, *data); + return 0; + } - const u32 *data = of_get_property(np, "phy-handle", &len); + data = of_get_property(np, "phy-handle", &len); if (!data || len != 4) return -EINVAL; diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h index c675e29aadcc..e05389c49bbb 100644 --- a/drivers/net/fs_enet/fs_enet.h +++ b/drivers/net/fs_enet/fs_enet.h @@ -12,7 +12,7 @@ #include <asm/fs_pd.h> #ifdef CONFIG_CPM1 -#include <asm/commproc.h> +#include <asm/cpm1.h> struct fec_info { fec_t __iomem *fecp; diff --git a/drivers/net/fs_enet/mac-fcc.c b/drivers/net/fs_enet/mac-fcc.c index da4efbca646e..e36321152d50 100644 --- a/drivers/net/fs_enet/mac-fcc.c +++ b/drivers/net/fs_enet/mac-fcc.c @@ -81,16 +81,8 @@ static inline int fcc_cr_cmd(struct fs_enet_private *fep, u32 op) { const struct fs_platform_info *fpi = fep->fpi; - int i; - - W32(cpmp, cp_cpcr, fpi->cp_command | op | CPM_CR_FLG); - for (i = 0; i < MAX_CR_CMD_LOOPS; i++) - if ((R32(cpmp, cp_cpcr) & CPM_CR_FLG) == 0) - return 0; - printk(KERN_ERR "%s(): Not able to issue CPM command\n", - __FUNCTION__); - return 1; + return cpm_command(fpi->cp_command, op); } static int do_pd_setup(struct fs_enet_private *fep) diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c index c1fee48517e3..8a311d1e435b 100644 --- a/drivers/net/fs_enet/mac-fec.c +++ b/drivers/net/fs_enet/mac-fec.c @@ -40,7 +40,7 @@ #include <asm/8xx_immap.h> #include <asm/pgtable.h> #include <asm/mpc8xx.h> -#include <asm/commproc.h> +#include <asm/cpm1.h> #endif #ifdef CONFIG_PPC_CPM_NEW_BINDING diff --git a/drivers/net/fs_enet/mac-scc.c b/drivers/net/fs_enet/mac-scc.c index 48f2f3005935..d7ca31945c82 100644 --- a/drivers/net/fs_enet/mac-scc.c +++ b/drivers/net/fs_enet/mac-scc.c @@ -40,7 +40,7 @@ #include <asm/8xx_immap.h> #include <asm/pgtable.h> #include <asm/mpc8xx.h> -#include <asm/commproc.h> +#include <asm/cpm1.h> #endif #ifdef CONFIG_PPC_CPM_NEW_BINDING @@ -89,21 +89,12 @@ * Delay to wait for SCC reset command to complete (in us) */ #define SCC_RESET_DELAY 50 -#define MAX_CR_CMD_LOOPS 10000 static inline int scc_cr_cmd(struct fs_enet_private *fep, u32 op) { const struct fs_platform_info *fpi = fep->fpi; - int i; - - W16(cpmp, cp_cpcr, fpi->cp_command | CPM_CR_FLG | (op << 8)); - for (i = 0; i < MAX_CR_CMD_LOOPS; i++) - if ((R16(cpmp, cp_cpcr) & CPM_CR_FLG) == 0) - return 0; - printk(KERN_ERR "%s(): Not able to issue CPM command\n", - __FUNCTION__); - return 1; + return cpm_command(fpi->cp_command, op); } static int do_pd_setup(struct fs_enet_private *fep) diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index b24bd2dfb725..e6c69f77259b 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -37,6 +37,7 @@ #include <linux/mii.h> #include <linux/bitops.h> #include <linux/workqueue.h> +#include <linux/of.h> #include <asm/processor.h> #include <asm/io.h> diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 54b2ba996640..7fe03ce774b1 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -61,34 +61,12 @@ config ICPLUS_PHY Currently supports the IP175C PHY. config FIXED_PHY - tristate "Drivers for PHY emulation on fixed speed/link" + bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" ---help--- - Adds the driver to PHY layer to cover the boards that do not have any PHY bound, - but with the ability to manipulate the speed/link in software. The relevant MII - speed/duplex parameters could be effectively handled in a user-specified function. - Currently tested with mpc866ads. - -config FIXED_MII_10_FDX - bool "Emulation for 10M Fdx fixed PHY behavior" - depends on FIXED_PHY - -config FIXED_MII_100_FDX - bool "Emulation for 100M Fdx fixed PHY behavior" - depends on FIXED_PHY - -config FIXED_MII_1000_FDX - bool "Emulation for 1000M Fdx fixed PHY behavior" - depends on FIXED_PHY - -config FIXED_MII_AMNT - int "Number of emulated PHYs to allocate " - depends on FIXED_PHY - default "1" - ---help--- - Sometimes it is required to have several independent emulated - PHYs on the bus (in case of multi-eth but phy-less HW for instance). - This control will have specified number allocated for each fixed - PHY type enabled. + Adds the platform "fixed" MDIO Bus to cover the boards that use + PHYs that are not connected to the real MDIO bus. + + Currently tested with mpc866ads and mpc8349e-mitx. config MDIO_BITBANG tristate "Support for bitbanged MDIO buses" diff --git a/drivers/net/phy/fixed.c b/drivers/net/phy/fixed.c index 56191822fa26..73b6d39ef6b0 100644 --- a/drivers/net/phy/fixed.c +++ b/drivers/net/phy/fixed.c @@ -1,362 +1,253 @@ /* - * drivers/net/phy/fixed.c + * Fixed MDIO bus (MDIO bus emulation with fixed PHYs) * - * Driver for fixed PHYs, when transceiver is able to operate in one fixed mode. + * Author: Vitaly Bordug <vbordug@ru.mvista.com> + * Anton Vorontsov <avorontsov@ru.mvista.com> * - * Author: Vitaly Bordug - * - * Copyright (c) 2006 MontaVista Software, Inc. + * Copyright (c) 2006-2007 MontaVista Software, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. - * */ + #include <linux/kernel.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/unistd.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/spinlock.h> -#include <linux/mm.h> #include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/list.h> #include <linux/mii.h> -#include <linux/ethtool.h> #include <linux/phy.h> #include <linux/phy_fixed.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/uaccess.h> +#define MII_REGS_NUM 29 -/* we need to track the allocated pointers in order to free them on exit */ -static struct fixed_info *fixed_phy_ptrs[CONFIG_FIXED_MII_AMNT*MAX_PHY_AMNT]; - -/*----------------------------------------------------------------------------- - * If something weird is required to be done with link/speed, - * network driver is able to assign a function to implement this. - * May be useful for PHY's that need to be software-driven. - *-----------------------------------------------------------------------------*/ -int fixed_mdio_set_link_update(struct phy_device *phydev, - int (*link_update) (struct net_device *, - struct fixed_phy_status *)) -{ - struct fixed_info *fixed; - - if (link_update == NULL) - return -EINVAL; - - if (phydev) { - if (phydev->bus) { - fixed = phydev->bus->priv; - fixed->link_update = link_update; - return 0; - } - } - return -EINVAL; -} - -EXPORT_SYMBOL(fixed_mdio_set_link_update); +struct fixed_mdio_bus { + int irqs[PHY_MAX_ADDR]; + struct mii_bus mii_bus; + struct list_head phys; +}; -struct fixed_info *fixed_mdio_get_phydev (int phydev_ind) -{ - if (phydev_ind >= MAX_PHY_AMNT) - return NULL; - return fixed_phy_ptrs[phydev_ind]; -} +struct fixed_phy { + int id; + u16 regs[MII_REGS_NUM]; + struct phy_device *phydev; + struct fixed_phy_status status; + int (*link_update)(struct net_device *, struct fixed_phy_status *); + struct list_head node; +}; -EXPORT_SYMBOL(fixed_mdio_get_phydev); +static struct platform_device *pdev; +static struct fixed_mdio_bus platform_fmb = { + .phys = LIST_HEAD_INIT(platform_fmb.phys), +}; -/*----------------------------------------------------------------------------- - * This is used for updating internal mii regs from the status - *-----------------------------------------------------------------------------*/ -#if defined(CONFIG_FIXED_MII_100_FDX) || defined(CONFIG_FIXED_MII_10_FDX) || defined(CONFIG_FIXED_MII_1000_FDX) -static int fixed_mdio_update_regs(struct fixed_info *fixed) +static int fixed_phy_update_regs(struct fixed_phy *fp) { - u16 *regs = fixed->regs; - u16 bmsr = 0; + u16 bmsr = BMSR_ANEGCAPABLE; u16 bmcr = 0; + u16 lpagb = 0; + u16 lpa = 0; - if (!regs) { - printk(KERN_ERR "%s: regs not set up", __FUNCTION__); - return -EINVAL; - } - - if (fixed->phy_status.link) - bmsr |= BMSR_LSTATUS; - - if (fixed->phy_status.duplex) { + if (fp->status.duplex) { bmcr |= BMCR_FULLDPLX; - switch (fixed->phy_status.speed) { + switch (fp->status.speed) { + case 1000: + bmsr |= BMSR_ESTATEN; + bmcr |= BMCR_SPEED1000; + lpagb |= LPA_1000FULL; + break; case 100: bmsr |= BMSR_100FULL; bmcr |= BMCR_SPEED100; + lpa |= LPA_100FULL; break; - case 10: bmsr |= BMSR_10FULL; + lpa |= LPA_10FULL; break; + default: + printk(KERN_WARNING "fixed phy: unknown speed\n"); + return -EINVAL; } } else { - switch (fixed->phy_status.speed) { + switch (fp->status.speed) { + case 1000: + bmsr |= BMSR_ESTATEN; + bmcr |= BMCR_SPEED1000; + lpagb |= LPA_1000HALF; + break; case 100: bmsr |= BMSR_100HALF; bmcr |= BMCR_SPEED100; + lpa |= LPA_100HALF; break; - case 10: - bmsr |= BMSR_100HALF; + bmsr |= BMSR_10HALF; + lpa |= LPA_10HALF; break; + default: + printk(KERN_WARNING "fixed phy: unknown speed\n"); + return -EINVAL; } } - regs[MII_BMCR] = bmcr; - regs[MII_BMSR] = bmsr | 0x800; /*we are always capable of 10 hdx */ + if (fp->status.link) + bmsr |= BMSR_LSTATUS | BMSR_ANEGCOMPLETE; + + if (fp->status.pause) + lpa |= LPA_PAUSE_CAP; + + if (fp->status.asym_pause) + lpa |= LPA_PAUSE_ASYM; + + fp->regs[MII_PHYSID1] = fp->id >> 16; + fp->regs[MII_PHYSID2] = fp->id; + + fp->regs[MII_BMSR] = bmsr; + fp->regs[MII_BMCR] = bmcr; + fp->regs[MII_LPA] = lpa; + fp->regs[MII_STAT1000] = lpagb; return 0; } -static int fixed_mii_read(struct mii_bus *bus, int phy_id, int location) +static int fixed_mdio_read(struct mii_bus *bus, int phy_id, int reg_num) { - struct fixed_info *fixed = bus->priv; - - /* if user has registered link update callback, use it */ - if (fixed->phydev) - if (fixed->phydev->attached_dev) { - if (fixed->link_update) { - fixed->link_update(fixed->phydev->attached_dev, - &fixed->phy_status); - fixed_mdio_update_regs(fixed); + struct fixed_mdio_bus *fmb = container_of(bus, struct fixed_mdio_bus, + mii_bus); + struct fixed_phy *fp; + + if (reg_num >= MII_REGS_NUM) + return -1; + + list_for_each_entry(fp, &fmb->phys, node) { + if (fp->id == phy_id) { + /* Issue callback if user registered it. */ + if (fp->link_update) { + fp->link_update(fp->phydev->attached_dev, + &fp->status); + fixed_phy_update_regs(fp); } + return fp->regs[reg_num]; } + } - if ((unsigned int)location >= fixed->regs_num) - return -1; - return fixed->regs[location]; + return 0xFFFF; } -static int fixed_mii_write(struct mii_bus *bus, int phy_id, int location, - u16 val) +static int fixed_mdio_write(struct mii_bus *bus, int phy_id, int reg_num, + u16 val) { - /* do nothing for now */ return 0; } -static int fixed_mii_reset(struct mii_bus *bus) +/* + * If something weird is required to be done with link/speed, + * network driver is able to assign a function to implement this. + * May be useful for PHY's that need to be software-driven. + */ +int fixed_phy_set_link_update(struct phy_device *phydev, + int (*link_update)(struct net_device *, + struct fixed_phy_status *)) { - /*nothing here - no way/need to reset it */ - return 0; -} -#endif + struct fixed_mdio_bus *fmb = &platform_fmb; + struct fixed_phy *fp; -static int fixed_config_aneg(struct phy_device *phydev) -{ - /* :TODO:03/13/2006 09:45:37 PM:: - The full autoneg funcionality can be emulated, - but no need to have anything here for now - */ - return 0; -} + if (!link_update || !phydev || !phydev->bus) + return -EINVAL; -/*----------------------------------------------------------------------------- - * the manual bind will do the magic - with phy_id_mask == 0 - * match will never return true... - *-----------------------------------------------------------------------------*/ -static struct phy_driver fixed_mdio_driver = { - .name = "Fixed PHY", -#ifdef CONFIG_FIXED_MII_1000_FDX - .features = PHY_GBIT_FEATURES, -#else - .features = PHY_BASIC_FEATURES, -#endif - .config_aneg = fixed_config_aneg, - .read_status = genphy_read_status, - .driver = { .owner = THIS_MODULE, }, -}; + list_for_each_entry(fp, &fmb->phys, node) { + if (fp->id == phydev->phy_id) { + fp->link_update = link_update; + fp->phydev = phydev; + return 0; + } + } -static void fixed_mdio_release(struct device *dev) -{ - struct phy_device *phydev = container_of(dev, struct phy_device, dev); - struct mii_bus *bus = phydev->bus; - struct fixed_info *fixed = bus->priv; - - kfree(phydev); - kfree(bus->dev); - kfree(bus); - kfree(fixed->regs); - kfree(fixed); + return -ENOENT; } +EXPORT_SYMBOL_GPL(fixed_phy_set_link_update); -/*----------------------------------------------------------------------------- - * This func is used to create all the necessary stuff, bind - * the fixed phy driver and register all it on the mdio_bus_type. - * speed is either 10 or 100 or 1000, duplex is boolean. - * number is used to create multiple fixed PHYs, so that several devices can - * utilize them simultaneously. - * - * The device on mdio bus will look like [bus_id]:[phy_id], - * bus_id = number - * phy_id = speed+duplex. - *-----------------------------------------------------------------------------*/ -#if defined(CONFIG_FIXED_MII_100_FDX) || defined(CONFIG_FIXED_MII_10_FDX) || defined(CONFIG_FIXED_MII_1000_FDX) -struct fixed_info *fixed_mdio_register_device( - int bus_id, int speed, int duplex, u8 phy_id) +int fixed_phy_add(unsigned int irq, int phy_id, + struct fixed_phy_status *status) { - struct mii_bus *new_bus; - struct fixed_info *fixed; - struct phy_device *phydev; - int err; + int ret; + struct fixed_mdio_bus *fmb = &platform_fmb; + struct fixed_phy *fp; - struct device *dev = kzalloc(sizeof(struct device), GFP_KERNEL); + fp = kzalloc(sizeof(*fp), GFP_KERNEL); + if (!fp) + return -ENOMEM; - if (dev == NULL) - goto err_dev_alloc; + memset(fp->regs, 0xFF, sizeof(fp->regs[0]) * MII_REGS_NUM); - new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL); + fmb->irqs[phy_id] = irq; - if (new_bus == NULL) - goto err_bus_alloc; + fp->id = phy_id; + fp->status = *status; - fixed = kzalloc(sizeof(struct fixed_info), GFP_KERNEL); + ret = fixed_phy_update_regs(fp); + if (ret) + goto err_regs; - if (fixed == NULL) - goto err_fixed_alloc; + list_add_tail(&fp->node, &fmb->phys); - fixed->regs = kzalloc(MII_REGS_NUM * sizeof(int), GFP_KERNEL); - if (NULL == fixed->regs) - goto err_fixed_regs_alloc; + return 0; - fixed->regs_num = MII_REGS_NUM; - fixed->phy_status.speed = speed; - fixed->phy_status.duplex = duplex; - fixed->phy_status.link = 1; +err_regs: + kfree(fp); + return ret; +} +EXPORT_SYMBOL_GPL(fixed_phy_add); - new_bus->name = "Fixed MII Bus"; - new_bus->read = &fixed_mii_read; - new_bus->write = &fixed_mii_write; - new_bus->reset = &fixed_mii_reset; - /*set up workspace */ - fixed_mdio_update_regs(fixed); - new_bus->priv = fixed; +static int __init fixed_mdio_bus_init(void) +{ + struct fixed_mdio_bus *fmb = &platform_fmb; + int ret; - new_bus->dev = dev; - dev_set_drvdata(dev, new_bus); + pdev = platform_device_register_simple("Fixed MDIO bus", 0, NULL, 0); + if (!pdev) { + ret = -ENOMEM; + goto err_pdev; + } - /* create phy_device and register it on the mdio bus */ - phydev = phy_device_create(new_bus, 0, 0); - if (phydev == NULL) - goto err_phy_dev_create; + fmb->mii_bus.id = 0; + fmb->mii_bus.name = "Fixed MDIO Bus"; + fmb->mii_bus.dev = &pdev->dev; + fmb->mii_bus.read = &fixed_mdio_read; + fmb->mii_bus.write = &fixed_mdio_write; + fmb->mii_bus.irq = fmb->irqs; - /* - * Put the phydev pointer into the fixed pack so that bus read/write - * code could be able to access for instance attached netdev. Well it - * doesn't have to do so, only in case of utilizing user-specified - * link-update... - */ + ret = mdiobus_register(&fmb->mii_bus); + if (ret) + goto err_mdiobus_reg; - fixed->phydev = phydev; - phydev->speed = speed; - phydev->duplex = duplex; + return 0; - phydev->irq = PHY_IGNORE_INTERRUPT; - phydev->dev.bus = &mdio_bus_type; +err_mdiobus_reg: + platform_device_unregister(pdev); +err_pdev: + return ret; +} +module_init(fixed_mdio_bus_init); - snprintf(phydev->dev.bus_id, BUS_ID_SIZE, - PHY_ID_FMT, bus_id, phy_id); +static void __exit fixed_mdio_bus_exit(void) +{ + struct fixed_mdio_bus *fmb = &platform_fmb; + struct fixed_phy *fp; - phydev->bus = new_bus; + mdiobus_unregister(&fmb->mii_bus); + platform_device_unregister(pdev); - phydev->dev.driver = &fixed_mdio_driver.driver; - phydev->dev.release = fixed_mdio_release; - err = phydev->dev.driver->probe(&phydev->dev); - if (err < 0) { - printk(KERN_ERR "Phy %s: problems with fixed driver\n", - phydev->dev.bus_id); - goto err_out; - } - err = device_register(&phydev->dev); - if (err) { - printk(KERN_ERR "Phy %s failed to register\n", - phydev->dev.bus_id); - goto err_out; + list_for_each_entry(fp, &fmb->phys, node) { + list_del(&fp->node); + kfree(fp); } - //phydev->state = PHY_RUNNING; /* make phy go up quick, but in 10Mbit/HDX - return fixed; - -err_out: - kfree(phydev); -err_phy_dev_create: - kfree(fixed->regs); -err_fixed_regs_alloc: - kfree(fixed); -err_fixed_alloc: - kfree(new_bus); -err_bus_alloc: - kfree(dev); -err_dev_alloc: - - return NULL; - } -#endif +module_exit(fixed_mdio_bus_exit); -MODULE_DESCRIPTION("Fixed PHY device & driver for PAL"); +MODULE_DESCRIPTION("Fixed MDIO bus (MDIO bus emulation with fixed PHYs)"); MODULE_AUTHOR("Vitaly Bordug"); MODULE_LICENSE("GPL"); - -static int __init fixed_init(void) -{ - int cnt = 0; - int i; -/* register on the bus... Not expected to be matched - * with anything there... - * - */ - phy_driver_register(&fixed_mdio_driver); - -/* We will create several mdio devices here, and will bound the upper - * driver to them. - * - * Then the external software can lookup the phy bus by searching - * for 0:101, to be connected to the virtual 100M Fdx phy. - * - * In case several virtual PHYs required, the bus_id will be in form - * [num]:[duplex]+[speed], which make it able even to define - * driver-specific link control callback, if for instance PHY is - * completely SW-driven. - */ - for (i=1; i <= CONFIG_FIXED_MII_AMNT; i++) { -#ifdef CONFIG_FIXED_MII_1000_FDX - fixed_phy_ptrs[cnt++] = fixed_mdio_register_device(0, 1000, 1, i); -#endif -#ifdef CONFIG_FIXED_MII_100_FDX - fixed_phy_ptrs[cnt++] = fixed_mdio_register_device(1, 100, 1, i); -#endif -#ifdef CONFIG_FIXED_MII_10_FDX - fixed_phy_ptrs[cnt++] = fixed_mdio_register_device(2, 10, 1, i); -#endif - } - - return 0; -} - -static void __exit fixed_exit(void) -{ - int i; - - phy_driver_unregister(&fixed_mdio_driver); - for (i=0; i < MAX_PHY_AMNT; i++) - if ( fixed_phy_ptrs[i] ) - device_unregister(&fixed_phy_ptrs[i]->phydev->dev); -} - -module_init(fixed_init); -module_exit(fixed_exit); diff --git a/drivers/net/ps3_gelic_net.c b/drivers/net/ps3_gelic_net.c index 0a42bf517465..055af081e027 100644 --- a/drivers/net/ps3_gelic_net.c +++ b/drivers/net/ps3_gelic_net.c @@ -58,11 +58,11 @@ static inline struct device *ctodev(struct gelic_net_card *card) { return &card->dev->core; } -static inline unsigned int bus_id(struct gelic_net_card *card) +static inline u64 bus_id(struct gelic_net_card *card) { return card->dev->bus_id; } -static inline unsigned int dev_id(struct gelic_net_card *card) +static inline u64 dev_id(struct gelic_net_card *card) { return card->dev->dev_id; } diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index 73d6ac9406b3..4ffd8739f8b7 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -3819,6 +3819,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma int err, ucc_num, max_speed = 0; const phandle *ph; const unsigned int *prop; + const char *sprop; const void *mac_addr; phy_interface_t phy_interface; static const int enet_to_speed[] = { @@ -3851,10 +3852,56 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma ug_info->uf_info.ucc_num = ucc_num; - prop = of_get_property(np, "rx-clock", NULL); - ug_info->uf_info.rx_clock = *prop; - prop = of_get_property(np, "tx-clock", NULL); - ug_info->uf_info.tx_clock = *prop; + sprop = of_get_property(np, "rx-clock-name", NULL); + if (sprop) { + ug_info->uf_info.rx_clock = qe_clock_source(sprop); + if ((ug_info->uf_info.rx_clock < QE_CLK_NONE) || + (ug_info->uf_info.rx_clock > QE_CLK24)) { + printk(KERN_ERR + "ucc_geth: invalid rx-clock-name property\n"); + return -EINVAL; + } + } else { + prop = of_get_property(np, "rx-clock", NULL); + if (!prop) { + /* If both rx-clock-name and rx-clock are missing, + we want to tell people to use rx-clock-name. */ + printk(KERN_ERR + "ucc_geth: missing rx-clock-name property\n"); + return -EINVAL; + } + if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) { + printk(KERN_ERR + "ucc_geth: invalid rx-clock propperty\n"); + return -EINVAL; + } + ug_info->uf_info.rx_clock = *prop; + } + + sprop = of_get_property(np, "tx-clock-name", NULL); + if (sprop) { + ug_info->uf_info.tx_clock = qe_clock_source(sprop); + if ((ug_info->uf_info.tx_clock < QE_CLK_NONE) || + (ug_info->uf_info.tx_clock > QE_CLK24)) { + printk(KERN_ERR + "ucc_geth: invalid tx-clock-name property\n"); + return -EINVAL; + } + } else { + prop = of_get_property(np, "rx-clock", NULL); + if (!prop) { + printk(KERN_ERR + "ucc_geth: mising tx-clock-name property\n"); + return -EINVAL; + } + if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) { + printk(KERN_ERR + "ucc_geth: invalid tx-clock property\n"); + return -EINVAL; + } + ug_info->uf_info.tx_clock = *prop; + } + err = of_address_to_resource(np, 0, &res); if (err) return -EINVAL; diff --git a/drivers/net/ucc_geth_mii.c b/drivers/net/ucc_geth_mii.c index df884f0ad8e5..e3ba14a19915 100644 --- a/drivers/net/ucc_geth_mii.c +++ b/drivers/net/ucc_geth_mii.c @@ -256,6 +256,9 @@ static struct of_device_id uec_mdio_match[] = { .type = "mdio", .compatible = "ucc_geth_phy", }, + { + .compatible = "fsl,ucc-mdio", + }, {}, }; diff --git a/drivers/of/base.c b/drivers/of/base.c index 9377f3bc410a..b306fef1ac41 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -273,3 +273,61 @@ struct device_node *of_find_compatible_node(struct device_node *from, return np; } EXPORT_SYMBOL(of_find_compatible_node); + +/** + * of_match_node - Tell if an device_node has a matching of_match structure + * @matches: array of of device match structures to search in + * @node: the of device structure to match against + * + * Low level utility function used by device matching. + */ +const struct of_device_id *of_match_node(const struct of_device_id *matches, + const struct device_node *node) +{ + while (matches->name[0] || matches->type[0] || matches->compatible[0]) { + int match = 1; + if (matches->name[0]) + match &= node->name + && !strcmp(matches->name, node->name); + if (matches->type[0]) + match &= node->type + && !strcmp(matches->type, node->type); + if (matches->compatible[0]) + match &= of_device_is_compatible(node, + matches->compatible); + if (match) + return matches; + matches++; + } + return NULL; +} +EXPORT_SYMBOL(of_match_node); + +/** + * of_find_matching_node - Find a node based on an of_device_id match + * table. + * @from: The node to start searching from or NULL, the node + * you pass will not be searched, only the next one + * will; typically, you pass what the previous call + * returned. of_node_put() will be called on it + * @matches: array of of device match structures to search in + * + * Returns a node pointer with refcount incremented, use + * of_node_put() on it when done. + */ +struct device_node *of_find_matching_node(struct device_node *from, + const struct of_device_id *matches) +{ + struct device_node *np; + + read_lock(&devtree_lock); + np = from ? from->allnext : allnodes; + for (; np; np = np->allnext) { + if (of_match_node(matches, np) && of_node_get(np)) + break; + } + of_node_put(from); + read_unlock(&devtree_lock); + return np; +} +EXPORT_SYMBOL(of_find_matching_node); diff --git a/drivers/of/device.c b/drivers/of/device.c index 6245f060fb77..29681c4b700b 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -10,35 +10,6 @@ #include <asm/errno.h> /** - * of_match_node - Tell if an device_node has a matching of_match structure - * @ids: array of of device match structures to search in - * @node: the of device structure to match against - * - * Low level utility function used by device matching. - */ -const struct of_device_id *of_match_node(const struct of_device_id *matches, - const struct device_node *node) -{ - while (matches->name[0] || matches->type[0] || matches->compatible[0]) { - int match = 1; - if (matches->name[0]) - match &= node->name - && !strcmp(matches->name, node->name); - if (matches->type[0]) - match &= node->type - && !strcmp(matches->type, node->type); - if (matches->compatible[0]) - match &= of_device_is_compatible(node, - matches->compatible); - if (match) - return matches; - matches++; - } - return NULL; -} -EXPORT_SYMBOL(of_match_node); - -/** * of_match_device - Tell if an of_device structure has a matching * of_match structure * @ids: array of of device match structures to search in diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile index 555055650733..f697f3d728eb 100644 --- a/drivers/pci/Makefile +++ b/drivers/pci/Makefile @@ -32,7 +32,7 @@ obj-$(CONFIG_ARM) += setup-bus.o setup-irq.o obj-$(CONFIG_PARISC) += setup-bus.o obj-$(CONFIG_SUPERH) += setup-bus.o setup-irq.o obj-$(CONFIG_PPC32) += setup-irq.o -obj-$(CONFIG_PPC64) += setup-bus.o +obj-$(CONFIG_PPC) += setup-bus.o obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o obj-$(CONFIG_X86_VISWS) += setup-irq.o diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c index b169b0e2647f..191954bc8e5b 100644 --- a/drivers/pci/hotplug/rpadlpar_core.c +++ b/drivers/pci/hotplug/rpadlpar_core.c @@ -155,7 +155,7 @@ static void dlpar_pci_add_bus(struct device_node *dn) dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) of_scan_pci_bridge(dn, dev); - pcibios_fixup_new_pci_devices(dev->subordinate,0); + pcibios_fixup_new_pci_devices(dev->subordinate); /* Claim new bus resources */ pcibios_claim_one_bus(dev->bus); diff --git a/drivers/ps3/Makefile b/drivers/ps3/Makefile index 1f5a2d33bf5b..ccea15c11c19 100644 --- a/drivers/ps3/Makefile +++ b/drivers/ps3/Makefile @@ -4,3 +4,4 @@ ps3av_mod-objs += ps3av.o ps3av_cmd.o obj-$(CONFIG_PPC_PS3) += sys-manager-core.o obj-$(CONFIG_PS3_SYS_MANAGER) += ps3-sys-manager.o obj-$(CONFIG_PS3_STORAGE) += ps3stor_lib.o +obj-$(CONFIG_PS3_LPM) += ps3-lpm.o diff --git a/drivers/ps3/ps3-lpm.c b/drivers/ps3/ps3-lpm.c new file mode 100644 index 000000000000..4c066545d176 --- /dev/null +++ b/drivers/ps3/ps3-lpm.c @@ -0,0 +1,1248 @@ +/* + * PS3 Logical Performance Monitor. + * + * Copyright (C) 2007 Sony Computer Entertainment Inc. + * Copyright 2007 Sony Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/uaccess.h> +#include <asm/ps3.h> +#include <asm/lv1call.h> +#include <asm/cell-pmu.h> + + +/* BOOKMARK tag macros */ +#define PS3_PM_BOOKMARK_START 0x8000000000000000ULL +#define PS3_PM_BOOKMARK_STOP 0x4000000000000000ULL +#define PS3_PM_BOOKMARK_TAG_KERNEL 0x1000000000000000ULL +#define PS3_PM_BOOKMARK_TAG_USER 0x3000000000000000ULL +#define PS3_PM_BOOKMARK_TAG_MASK_HI 0xF000000000000000ULL +#define PS3_PM_BOOKMARK_TAG_MASK_LO 0x0F00000000000000ULL + +/* CBE PM CONTROL register macros */ +#define PS3_PM_CONTROL_PPU_TH0_BOOKMARK 0x00001000 +#define PS3_PM_CONTROL_PPU_TH1_BOOKMARK 0x00000800 +#define PS3_PM_CONTROL_PPU_COUNT_MODE_MASK 0x000C0000 +#define PS3_PM_CONTROL_PPU_COUNT_MODE_PROBLEM 0x00080000 +#define PS3_WRITE_PM_MASK 0xFFFFFFFFFFFFFFFFULL + +/* CBE PM START STOP register macros */ +#define PS3_PM_START_STOP_PPU_TH0_BOOKMARK_START 0x02000000 +#define PS3_PM_START_STOP_PPU_TH1_BOOKMARK_START 0x01000000 +#define PS3_PM_START_STOP_PPU_TH0_BOOKMARK_STOP 0x00020000 +#define PS3_PM_START_STOP_PPU_TH1_BOOKMARK_STOP 0x00010000 +#define PS3_PM_START_STOP_START_MASK 0xFF000000 +#define PS3_PM_START_STOP_STOP_MASK 0x00FF0000 + +/* CBE PM COUNTER register macres */ +#define PS3_PM_COUNTER_MASK_HI 0xFFFFFFFF00000000ULL +#define PS3_PM_COUNTER_MASK_LO 0x00000000FFFFFFFFULL + +/* BASE SIGNAL GROUP NUMBER macros */ +#define PM_ISLAND2_BASE_SIGNAL_GROUP_NUMBER 0 +#define PM_ISLAND2_SIGNAL_GROUP_NUMBER1 6 +#define PM_ISLAND2_SIGNAL_GROUP_NUMBER2 7 +#define PM_ISLAND3_BASE_SIGNAL_GROUP_NUMBER 7 +#define PM_ISLAND4_BASE_SIGNAL_GROUP_NUMBER 15 +#define PM_SPU_TRIGGER_SIGNAL_GROUP_NUMBER 17 +#define PM_SPU_EVENT_SIGNAL_GROUP_NUMBER 18 +#define PM_ISLAND5_BASE_SIGNAL_GROUP_NUMBER 18 +#define PM_ISLAND6_BASE_SIGNAL_GROUP_NUMBER 24 +#define PM_ISLAND7_BASE_SIGNAL_GROUP_NUMBER 49 +#define PM_ISLAND8_BASE_SIGNAL_GROUP_NUMBER 52 +#define PM_SIG_GROUP_SPU 41 +#define PM_SIG_GROUP_SPU_TRIGGER 42 +#define PM_SIG_GROUP_SPU_EVENT 43 +#define PM_SIG_GROUP_MFC_MAX 60 + +/** + * struct ps3_lpm_shadow_regs - Performance monitor shadow registers. + * + * @pm_control: Shadow of the processor's pm_control register. + * @pm_start_stop: Shadow of the processor's pm_start_stop register. + * @pm_interval: Shadow of the processor's pm_interval register. + * @group_control: Shadow of the processor's group_control register. + * @debug_bus_control: Shadow of the processor's debug_bus_control register. + * + * The logical performance monitor provides a write-only interface to + * these processor registers. These shadow variables cache the processor + * register values for reading. + * + * The initial value of the shadow registers at lpm creation is + * PS3_LPM_SHADOW_REG_INIT. + */ + +struct ps3_lpm_shadow_regs { + u64 pm_control; + u64 pm_start_stop; + u64 pm_interval; + u64 group_control; + u64 debug_bus_control; +}; + +#define PS3_LPM_SHADOW_REG_INIT 0xFFFFFFFF00000000ULL + +/** + * struct ps3_lpm_priv - Private lpm device data. + * + * @open: An atomic variable indicating the lpm driver has been opened. + * @rights: The lpm rigths granted by the system policy module. A logical + * OR of enum ps3_lpm_rights. + * @node_id: The node id of a BE prosessor whose performance monitor this + * lpar has the right to use. + * @pu_id: The lv1 id of the logical PU. + * @lpm_id: The lv1 id of this lpm instance. + * @outlet_id: The outlet created by lv1 for this lpm instance. + * @tb_count: The number of bytes of data held in the lv1 trace buffer. + * @tb_cache: Kernel buffer to receive the data from the lv1 trace buffer. + * Must be 128 byte aligned. + * @tb_cache_size: Size of the kernel @tb_cache buffer. Must be 128 byte + * aligned. + * @tb_cache_internal: An unaligned buffer allocated by this driver to be + * used for the trace buffer cache when ps3_lpm_open() is called with a + * NULL tb_cache argument. Otherwise unused. + * @shadow: Processor register shadow of type struct ps3_lpm_shadow_regs. + * @sbd: The struct ps3_system_bus_device attached to this driver. + * + * The trace buffer is a buffer allocated and used internally to the lv1 + * hypervisor to collect trace data. The trace buffer cache is a guest + * buffer that accepts the trace data from the trace buffer. + */ + +struct ps3_lpm_priv { + atomic_t open; + u64 rights; + u64 node_id; + u64 pu_id; + u64 lpm_id; + u64 outlet_id; + u64 tb_count; + void *tb_cache; + u64 tb_cache_size; + void *tb_cache_internal; + struct ps3_lpm_shadow_regs shadow; + struct ps3_system_bus_device *sbd; +}; + +enum { + PS3_LPM_DEFAULT_TB_CACHE_SIZE = 0x4000, +}; + +/** + * lpm_priv - Static instance of the lpm data. + * + * Since the exported routines don't support the notion of a device + * instance we need to hold the instance in this static variable + * and then only allow at most one instance at a time to be created. + */ + +static struct ps3_lpm_priv *lpm_priv; + +static struct device *sbd_core(void) +{ + BUG_ON(!lpm_priv || !lpm_priv->sbd); + return &lpm_priv->sbd->core; +} + +/** + * use_start_stop_bookmark - Enable the PPU bookmark trace. + * + * And it enables PPU bookmark triggers ONLY if the other triggers are not set. + * The start/stop bookmarks are inserted at ps3_enable_pm() and ps3_disable_pm() + * to start/stop LPM. + * + * Used to get good quality of the performance counter. + */ + +enum {use_start_stop_bookmark = 1,}; + +void ps3_set_bookmark(u64 bookmark) +{ + /* + * As per the PPE book IV, to avoid bookmark loss there must + * not be a traced branch within 10 cycles of setting the + * SPRN_BKMK register. The actual text is unclear if 'within' + * includes cycles before the call. + */ + + asm volatile("or 29, 29, 29;"); /* db10cyc */ + mtspr(SPRN_BKMK, bookmark); + asm volatile("or 29, 29, 29;"); /* db10cyc */ +} +EXPORT_SYMBOL_GPL(ps3_set_bookmark); + +void ps3_set_pm_bookmark(u64 tag, u64 incident, u64 th_id) +{ + u64 bookmark; + + bookmark = (get_tb() & 0x00000000FFFFFFFFULL) | + PS3_PM_BOOKMARK_TAG_KERNEL; + bookmark = ((tag << 56) & PS3_PM_BOOKMARK_TAG_MASK_LO) | + (incident << 48) | (th_id << 32) | bookmark; + ps3_set_bookmark(bookmark); +} +EXPORT_SYMBOL_GPL(ps3_set_pm_bookmark); + +/** + * ps3_read_phys_ctr - Read physical counter registers. + * + * Each physical counter can act as one 32 bit counter or as two 16 bit + * counters. + */ + +u32 ps3_read_phys_ctr(u32 cpu, u32 phys_ctr) +{ + int result; + u64 counter0415; + u64 counter2637; + + if (phys_ctr >= NR_PHYS_CTRS) { + dev_dbg(sbd_core(), "%s:%u: phys_ctr too big: %u\n", __func__, + __LINE__, phys_ctr); + return 0; + } + + result = lv1_set_lpm_counter(lpm_priv->lpm_id, 0, 0, 0, 0, &counter0415, + &counter2637); + if (result) { + dev_err(sbd_core(), "%s:%u: lv1_set_lpm_counter failed: " + "phys_ctr %u, %s\n", __func__, __LINE__, phys_ctr, + ps3_result(result)); + return 0; + } + + switch (phys_ctr) { + case 0: + return counter0415 >> 32; + case 1: + return counter0415 & PS3_PM_COUNTER_MASK_LO; + case 2: + return counter2637 >> 32; + case 3: + return counter2637 & PS3_PM_COUNTER_MASK_LO; + default: + BUG(); + } + return 0; +} +EXPORT_SYMBOL_GPL(ps3_read_phys_ctr); + +/** + * ps3_write_phys_ctr - Write physical counter registers. + * + * Each physical counter can act as one 32 bit counter or as two 16 bit + * counters. + */ + +void ps3_write_phys_ctr(u32 cpu, u32 phys_ctr, u32 val) +{ + u64 counter0415; + u64 counter0415_mask; + u64 counter2637; + u64 counter2637_mask; + int result; + + if (phys_ctr >= NR_PHYS_CTRS) { + dev_dbg(sbd_core(), "%s:%u: phys_ctr too big: %u\n", __func__, + __LINE__, phys_ctr); + return; + } + + switch (phys_ctr) { + case 0: + counter0415 = (u64)val << 32; + counter0415_mask = PS3_PM_COUNTER_MASK_HI; + counter2637 = 0x0; + counter2637_mask = 0x0; + break; + case 1: + counter0415 = (u64)val; + counter0415_mask = PS3_PM_COUNTER_MASK_LO; + counter2637 = 0x0; + counter2637_mask = 0x0; + break; + case 2: + counter0415 = 0x0; + counter0415_mask = 0x0; + counter2637 = (u64)val << 32; + counter2637_mask = PS3_PM_COUNTER_MASK_HI; + break; + case 3: + counter0415 = 0x0; + counter0415_mask = 0x0; + counter2637 = (u64)val; + counter2637_mask = PS3_PM_COUNTER_MASK_LO; + break; + default: + BUG(); + } + + result = lv1_set_lpm_counter(lpm_priv->lpm_id, + counter0415, counter0415_mask, + counter2637, counter2637_mask, + &counter0415, &counter2637); + if (result) + dev_err(sbd_core(), "%s:%u: lv1_set_lpm_counter failed: " + "phys_ctr %u, val %u, %s\n", __func__, __LINE__, + phys_ctr, val, ps3_result(result)); +} +EXPORT_SYMBOL_GPL(ps3_write_phys_ctr); + +/** + * ps3_read_ctr - Read counter. + * + * Read 16 or 32 bits depending on the current size of the counter. + * Counters 4, 5, 6 & 7 are always 16 bit. + */ + +u32 ps3_read_ctr(u32 cpu, u32 ctr) +{ + u32 val; + u32 phys_ctr = ctr & (NR_PHYS_CTRS - 1); + + val = ps3_read_phys_ctr(cpu, phys_ctr); + + if (ps3_get_ctr_size(cpu, phys_ctr) == 16) + val = (ctr < NR_PHYS_CTRS) ? (val >> 16) : (val & 0xffff); + + return val; +} +EXPORT_SYMBOL_GPL(ps3_read_ctr); + +/** + * ps3_write_ctr - Write counter. + * + * Write 16 or 32 bits depending on the current size of the counter. + * Counters 4, 5, 6 & 7 are always 16 bit. + */ + +void ps3_write_ctr(u32 cpu, u32 ctr, u32 val) +{ + u32 phys_ctr; + u32 phys_val; + + phys_ctr = ctr & (NR_PHYS_CTRS - 1); + + if (ps3_get_ctr_size(cpu, phys_ctr) == 16) { + phys_val = ps3_read_phys_ctr(cpu, phys_ctr); + + if (ctr < NR_PHYS_CTRS) + val = (val << 16) | (phys_val & 0xffff); + else + val = (val & 0xffff) | (phys_val & 0xffff0000); + } + + ps3_write_phys_ctr(cpu, phys_ctr, val); +} +EXPORT_SYMBOL_GPL(ps3_write_ctr); + +/** + * ps3_read_pm07_control - Read counter control registers. + * + * Each logical counter has a corresponding control register. + */ + +u32 ps3_read_pm07_control(u32 cpu, u32 ctr) +{ + return 0; +} +EXPORT_SYMBOL_GPL(ps3_read_pm07_control); + +/** + * ps3_write_pm07_control - Write counter control registers. + * + * Each logical counter has a corresponding control register. + */ + +void ps3_write_pm07_control(u32 cpu, u32 ctr, u32 val) +{ + int result; + static const u64 mask = 0xFFFFFFFFFFFFFFFFULL; + u64 old_value; + + if (ctr >= NR_CTRS) { + dev_dbg(sbd_core(), "%s:%u: ctr too big: %u\n", __func__, + __LINE__, ctr); + return; + } + + result = lv1_set_lpm_counter_control(lpm_priv->lpm_id, ctr, val, mask, + &old_value); + if (result) + dev_err(sbd_core(), "%s:%u: lv1_set_lpm_counter_control " + "failed: ctr %u, %s\n", __func__, __LINE__, ctr, + ps3_result(result)); +} +EXPORT_SYMBOL_GPL(ps3_write_pm07_control); + +/** + * ps3_read_pm - Read Other LPM control registers. + */ + +u32 ps3_read_pm(u32 cpu, enum pm_reg_name reg) +{ + int result = 0; + u64 val = 0; + + switch (reg) { + case pm_control: + return lpm_priv->shadow.pm_control; + case trace_address: + return CBE_PM_TRACE_BUF_EMPTY; + case pm_start_stop: + return lpm_priv->shadow.pm_start_stop; + case pm_interval: + return lpm_priv->shadow.pm_interval; + case group_control: + return lpm_priv->shadow.group_control; + case debug_bus_control: + return lpm_priv->shadow.debug_bus_control; + case pm_status: + result = lv1_get_lpm_interrupt_status(lpm_priv->lpm_id, + &val); + if (result) { + val = 0; + dev_dbg(sbd_core(), "%s:%u: lv1 get_lpm_status failed: " + "reg %u, %s\n", __func__, __LINE__, reg, + ps3_result(result)); + } + return (u32)val; + case ext_tr_timer: + return 0; + default: + dev_dbg(sbd_core(), "%s:%u: unknown reg: %d\n", __func__, + __LINE__, reg); + BUG(); + break; + } + + return 0; +} +EXPORT_SYMBOL_GPL(ps3_read_pm); + +/** + * ps3_write_pm - Write Other LPM control registers. + */ + +void ps3_write_pm(u32 cpu, enum pm_reg_name reg, u32 val) +{ + int result = 0; + u64 dummy; + + switch (reg) { + case group_control: + if (val != lpm_priv->shadow.group_control) + result = lv1_set_lpm_group_control(lpm_priv->lpm_id, + val, + PS3_WRITE_PM_MASK, + &dummy); + lpm_priv->shadow.group_control = val; + break; + case debug_bus_control: + if (val != lpm_priv->shadow.debug_bus_control) + result = lv1_set_lpm_debug_bus_control(lpm_priv->lpm_id, + val, + PS3_WRITE_PM_MASK, + &dummy); + lpm_priv->shadow.debug_bus_control = val; + break; + case pm_control: + if (use_start_stop_bookmark) + val |= (PS3_PM_CONTROL_PPU_TH0_BOOKMARK | + PS3_PM_CONTROL_PPU_TH1_BOOKMARK); + if (val != lpm_priv->shadow.pm_control) + result = lv1_set_lpm_general_control(lpm_priv->lpm_id, + val, + PS3_WRITE_PM_MASK, + 0, 0, &dummy, + &dummy); + lpm_priv->shadow.pm_control = val; + break; + case pm_interval: + if (val != lpm_priv->shadow.pm_interval) + result = lv1_set_lpm_interval(lpm_priv->lpm_id, val, + PS3_WRITE_PM_MASK, &dummy); + lpm_priv->shadow.pm_interval = val; + break; + case pm_start_stop: + if (val != lpm_priv->shadow.pm_start_stop) + result = lv1_set_lpm_trigger_control(lpm_priv->lpm_id, + val, + PS3_WRITE_PM_MASK, + &dummy); + lpm_priv->shadow.pm_start_stop = val; + break; + case trace_address: + case ext_tr_timer: + case pm_status: + break; + default: + dev_dbg(sbd_core(), "%s:%u: unknown reg: %d\n", __func__, + __LINE__, reg); + BUG(); + break; + } + + if (result) + dev_err(sbd_core(), "%s:%u: lv1 set_control failed: " + "reg %u, %s\n", __func__, __LINE__, reg, + ps3_result(result)); +} +EXPORT_SYMBOL_GPL(ps3_write_pm); + +/** + * ps3_get_ctr_size - Get the size of a physical counter. + * + * Returns either 16 or 32. + */ + +u32 ps3_get_ctr_size(u32 cpu, u32 phys_ctr) +{ + u32 pm_ctrl; + + if (phys_ctr >= NR_PHYS_CTRS) { + dev_dbg(sbd_core(), "%s:%u: phys_ctr too big: %u\n", __func__, + __LINE__, phys_ctr); + return 0; + } + + pm_ctrl = ps3_read_pm(cpu, pm_control); + return (pm_ctrl & CBE_PM_16BIT_CTR(phys_ctr)) ? 16 : 32; +} +EXPORT_SYMBOL_GPL(ps3_get_ctr_size); + +/** + * ps3_set_ctr_size - Set the size of a physical counter to 16 or 32 bits. + */ + +void ps3_set_ctr_size(u32 cpu, u32 phys_ctr, u32 ctr_size) +{ + u32 pm_ctrl; + + if (phys_ctr >= NR_PHYS_CTRS) { + dev_dbg(sbd_core(), "%s:%u: phys_ctr too big: %u\n", __func__, + __LINE__, phys_ctr); + return; + } + + pm_ctrl = ps3_read_pm(cpu, pm_control); + + switch (ctr_size) { + case 16: + pm_ctrl |= CBE_PM_16BIT_CTR(phys_ctr); + ps3_write_pm(cpu, pm_control, pm_ctrl); + break; + + case 32: + pm_ctrl &= ~CBE_PM_16BIT_CTR(phys_ctr); + ps3_write_pm(cpu, pm_control, pm_ctrl); + break; + default: + BUG(); + } +} +EXPORT_SYMBOL_GPL(ps3_set_ctr_size); + +static u64 pm_translate_signal_group_number_on_island2(u64 subgroup) +{ + + if (subgroup == 2) + subgroup = 3; + + if (subgroup <= 6) + return PM_ISLAND2_BASE_SIGNAL_GROUP_NUMBER + subgroup; + else if (subgroup == 7) + return PM_ISLAND2_SIGNAL_GROUP_NUMBER1; + else + return PM_ISLAND2_SIGNAL_GROUP_NUMBER2; +} + +static u64 pm_translate_signal_group_number_on_island3(u64 subgroup) +{ + + switch (subgroup) { + case 2: + case 3: + case 4: + subgroup += 2; + break; + case 5: + subgroup = 8; + break; + default: + break; + } + return PM_ISLAND3_BASE_SIGNAL_GROUP_NUMBER + subgroup; +} + +static u64 pm_translate_signal_group_number_on_island4(u64 subgroup) +{ + return PM_ISLAND4_BASE_SIGNAL_GROUP_NUMBER + subgroup; +} + +static u64 pm_translate_signal_group_number_on_island5(u64 subgroup) +{ + + switch (subgroup) { + case 3: + subgroup = 4; + break; + case 4: + subgroup = 6; + break; + default: + break; + } + return PM_ISLAND5_BASE_SIGNAL_GROUP_NUMBER + subgroup; +} + +static u64 pm_translate_signal_group_number_on_island6(u64 subgroup, + u64 subsubgroup) +{ + switch (subgroup) { + case 3: + case 4: + case 5: + subgroup += 1; + break; + default: + break; + } + + switch (subsubgroup) { + case 4: + case 5: + case 6: + subsubgroup += 2; + break; + case 7: + case 8: + case 9: + case 10: + subsubgroup += 4; + break; + case 11: + case 12: + case 13: + subsubgroup += 5; + break; + default: + break; + } + + if (subgroup <= 5) + return (PM_ISLAND6_BASE_SIGNAL_GROUP_NUMBER + subgroup); + else + return (PM_ISLAND6_BASE_SIGNAL_GROUP_NUMBER + subgroup + + subsubgroup - 1); +} + +static u64 pm_translate_signal_group_number_on_island7(u64 subgroup) +{ + return PM_ISLAND7_BASE_SIGNAL_GROUP_NUMBER + subgroup; +} + +static u64 pm_translate_signal_group_number_on_island8(u64 subgroup) +{ + return PM_ISLAND8_BASE_SIGNAL_GROUP_NUMBER + subgroup; +} + +static u64 pm_signal_group_to_ps3_lv1_signal_group(u64 group) +{ + u64 island; + u64 subgroup; + u64 subsubgroup; + + subgroup = 0; + subsubgroup = 0; + island = 0; + if (group < 1000) { + if (group < 100) { + if (20 <= group && group < 30) { + island = 2; + subgroup = group - 20; + } else if (30 <= group && group < 40) { + island = 3; + subgroup = group - 30; + } else if (40 <= group && group < 50) { + island = 4; + subgroup = group - 40; + } else if (50 <= group && group < 60) { + island = 5; + subgroup = group - 50; + } else if (60 <= group && group < 70) { + island = 6; + subgroup = group - 60; + } else if (70 <= group && group < 80) { + island = 7; + subgroup = group - 70; + } else if (80 <= group && group < 90) { + island = 8; + subgroup = group - 80; + } + } else if (200 <= group && group < 300) { + island = 2; + subgroup = group - 200; + } else if (600 <= group && group < 700) { + island = 6; + subgroup = 5; + subsubgroup = group - 650; + } + } else if (6000 <= group && group < 7000) { + island = 6; + subgroup = 5; + subsubgroup = group - 6500; + } + + switch (island) { + case 2: + return pm_translate_signal_group_number_on_island2(subgroup); + case 3: + return pm_translate_signal_group_number_on_island3(subgroup); + case 4: + return pm_translate_signal_group_number_on_island4(subgroup); + case 5: + return pm_translate_signal_group_number_on_island5(subgroup); + case 6: + return pm_translate_signal_group_number_on_island6(subgroup, + subsubgroup); + case 7: + return pm_translate_signal_group_number_on_island7(subgroup); + case 8: + return pm_translate_signal_group_number_on_island8(subgroup); + default: + dev_dbg(sbd_core(), "%s:%u: island not found: %lu\n", __func__, + __LINE__, group); + BUG(); + break; + } + return 0; +} + +static u64 pm_bus_word_to_ps3_lv1_bus_word(u8 word) +{ + + switch (word) { + case 1: + return 0xF000; + case 2: + return 0x0F00; + case 4: + return 0x00F0; + case 8: + default: + return 0x000F; + } +} + +static int __ps3_set_signal(u64 lv1_signal_group, u64 bus_select, + u64 signal_select, u64 attr1, u64 attr2, u64 attr3) +{ + int ret; + + ret = lv1_set_lpm_signal(lpm_priv->lpm_id, lv1_signal_group, bus_select, + signal_select, attr1, attr2, attr3); + if (ret) + dev_err(sbd_core(), + "%s:%u: error:%d 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx\n", + __func__, __LINE__, ret, lv1_signal_group, bus_select, + signal_select, attr1, attr2, attr3); + + return ret; +} + +int ps3_set_signal(u64 signal_group, u8 signal_bit, u16 sub_unit, + u8 bus_word) +{ + int ret; + u64 lv1_signal_group; + u64 bus_select; + u64 signal_select; + u64 attr1, attr2, attr3; + + if (signal_group == 0) + return __ps3_set_signal(0, 0, 0, 0, 0, 0); + + lv1_signal_group = + pm_signal_group_to_ps3_lv1_signal_group(signal_group); + bus_select = pm_bus_word_to_ps3_lv1_bus_word(bus_word); + + switch (signal_group) { + case PM_SIG_GROUP_SPU_TRIGGER: + signal_select = 1; + signal_select = signal_select << (63 - signal_bit); + break; + case PM_SIG_GROUP_SPU_EVENT: + signal_select = 1; + signal_select = (signal_select << (63 - signal_bit)) | 0x3; + break; + default: + signal_select = 0; + break; + } + + /* + * 0: physical object. + * 1: logical object. + * This parameter is only used for the PPE and SPE signals. + */ + attr1 = 1; + + /* + * This parameter is used to specify the target physical/logical + * PPE/SPE object. + */ + if (PM_SIG_GROUP_SPU <= signal_group && + signal_group < PM_SIG_GROUP_MFC_MAX) + attr2 = sub_unit; + else + attr2 = lpm_priv->pu_id; + + /* + * This parameter is only used for setting the SPE signal. + */ + attr3 = 0; + + ret = __ps3_set_signal(lv1_signal_group, bus_select, signal_select, + attr1, attr2, attr3); + if (ret) + dev_err(sbd_core(), "%s:%u: __ps3_set_signal failed: %d\n", + __func__, __LINE__, ret); + + return ret; +} +EXPORT_SYMBOL_GPL(ps3_set_signal); + +u32 ps3_get_hw_thread_id(int cpu) +{ + return get_hard_smp_processor_id(cpu); +} +EXPORT_SYMBOL_GPL(ps3_get_hw_thread_id); + +/** + * ps3_enable_pm - Enable the entire performance monitoring unit. + * + * When we enable the LPM, all pending writes to counters get committed. + */ + +void ps3_enable_pm(u32 cpu) +{ + int result; + u64 tmp; + int insert_bookmark = 0; + + lpm_priv->tb_count = 0; + + if (use_start_stop_bookmark) { + if (!(lpm_priv->shadow.pm_start_stop & + (PS3_PM_START_STOP_START_MASK + | PS3_PM_START_STOP_STOP_MASK))) { + result = lv1_set_lpm_trigger_control(lpm_priv->lpm_id, + (PS3_PM_START_STOP_PPU_TH0_BOOKMARK_START | + PS3_PM_START_STOP_PPU_TH1_BOOKMARK_START | + PS3_PM_START_STOP_PPU_TH0_BOOKMARK_STOP | + PS3_PM_START_STOP_PPU_TH1_BOOKMARK_STOP), + 0xFFFFFFFFFFFFFFFFULL, &tmp); + + if (result) + dev_err(sbd_core(), "%s:%u: " + "lv1_set_lpm_trigger_control failed: " + "%s\n", __func__, __LINE__, + ps3_result(result)); + + insert_bookmark = !result; + } + } + + result = lv1_start_lpm(lpm_priv->lpm_id); + + if (result) + dev_err(sbd_core(), "%s:%u: lv1_start_lpm failed: %s\n", + __func__, __LINE__, ps3_result(result)); + + if (use_start_stop_bookmark && !result && insert_bookmark) + ps3_set_bookmark(get_tb() | PS3_PM_BOOKMARK_START); +} +EXPORT_SYMBOL_GPL(ps3_enable_pm); + +/** + * ps3_disable_pm - Disable the entire performance monitoring unit. + */ + +void ps3_disable_pm(u32 cpu) +{ + int result; + u64 tmp; + + ps3_set_bookmark(get_tb() | PS3_PM_BOOKMARK_STOP); + + result = lv1_stop_lpm(lpm_priv->lpm_id, &tmp); + + if (result) { + if(result != LV1_WRONG_STATE) + dev_err(sbd_core(), "%s:%u: lv1_stop_lpm failed: %s\n", + __func__, __LINE__, ps3_result(result)); + return; + } + + lpm_priv->tb_count = tmp; + + dev_dbg(sbd_core(), "%s:%u: tb_count %lu (%lxh)\n", __func__, __LINE__, + lpm_priv->tb_count, lpm_priv->tb_count); +} +EXPORT_SYMBOL_GPL(ps3_disable_pm); + +/** + * ps3_lpm_copy_tb - Copy data from the trace buffer to a kernel buffer. + * @offset: Offset in bytes from the start of the trace buffer. + * @buf: Copy destination. + * @count: Maximum count of bytes to copy. + * @bytes_copied: Pointer to a variable that will recieve the number of + * bytes copied to @buf. + * + * On error @buf will contain any successfully copied trace buffer data + * and bytes_copied will be set to the number of bytes successfully copied. + */ + +int ps3_lpm_copy_tb(unsigned long offset, void *buf, unsigned long count, + unsigned long *bytes_copied) +{ + int result; + + *bytes_copied = 0; + + if (!lpm_priv->tb_cache) + return -EPERM; + + if (offset >= lpm_priv->tb_count) + return 0; + + count = min(count, lpm_priv->tb_count - offset); + + while (*bytes_copied < count) { + const unsigned long request = count - *bytes_copied; + u64 tmp; + + result = lv1_copy_lpm_trace_buffer(lpm_priv->lpm_id, offset, + request, &tmp); + if (result) { + dev_dbg(sbd_core(), "%s:%u: 0x%lx bytes at 0x%lx\n", + __func__, __LINE__, request, offset); + + dev_err(sbd_core(), "%s:%u: lv1_copy_lpm_trace_buffer " + "failed: %s\n", __func__, __LINE__, + ps3_result(result)); + return result == LV1_WRONG_STATE ? -EBUSY : -EINVAL; + } + + memcpy(buf, lpm_priv->tb_cache, tmp); + buf += tmp; + *bytes_copied += tmp; + offset += tmp; + } + dev_dbg(sbd_core(), "%s:%u: copied %lxh bytes\n", __func__, __LINE__, + *bytes_copied); + + return 0; +} +EXPORT_SYMBOL_GPL(ps3_lpm_copy_tb); + +/** + * ps3_lpm_copy_tb_to_user - Copy data from the trace buffer to a user buffer. + * @offset: Offset in bytes from the start of the trace buffer. + * @buf: A __user copy destination. + * @count: Maximum count of bytes to copy. + * @bytes_copied: Pointer to a variable that will recieve the number of + * bytes copied to @buf. + * + * On error @buf will contain any successfully copied trace buffer data + * and bytes_copied will be set to the number of bytes successfully copied. + */ + +int ps3_lpm_copy_tb_to_user(unsigned long offset, void __user *buf, + unsigned long count, unsigned long *bytes_copied) +{ + int result; + + *bytes_copied = 0; + + if (!lpm_priv->tb_cache) + return -EPERM; + + if (offset >= lpm_priv->tb_count) + return 0; + + count = min(count, lpm_priv->tb_count - offset); + + while (*bytes_copied < count) { + const unsigned long request = count - *bytes_copied; + u64 tmp; + + result = lv1_copy_lpm_trace_buffer(lpm_priv->lpm_id, offset, + request, &tmp); + if (result) { + dev_dbg(sbd_core(), "%s:%u: 0x%lx bytes at 0x%lx\n", + __func__, __LINE__, request, offset); + dev_err(sbd_core(), "%s:%u: lv1_copy_lpm_trace_buffer " + "failed: %s\n", __func__, __LINE__, + ps3_result(result)); + return result == LV1_WRONG_STATE ? -EBUSY : -EINVAL; + } + + result = copy_to_user(buf, lpm_priv->tb_cache, tmp); + + if (result) { + dev_dbg(sbd_core(), "%s:%u: 0x%lx bytes at 0x%p\n", + __func__, __LINE__, tmp, buf); + dev_err(sbd_core(), "%s:%u: copy_to_user failed: %d\n", + __func__, __LINE__, result); + return -EFAULT; + } + + buf += tmp; + *bytes_copied += tmp; + offset += tmp; + } + dev_dbg(sbd_core(), "%s:%u: copied %lxh bytes\n", __func__, __LINE__, + *bytes_copied); + + return 0; +} +EXPORT_SYMBOL_GPL(ps3_lpm_copy_tb_to_user); + +/** + * ps3_get_and_clear_pm_interrupts - + * + * Clearing interrupts for the entire performance monitoring unit. + * Reading pm_status clears the interrupt bits. + */ + +u32 ps3_get_and_clear_pm_interrupts(u32 cpu) +{ + return ps3_read_pm(cpu, pm_status); +} +EXPORT_SYMBOL_GPL(ps3_get_and_clear_pm_interrupts); + +/** + * ps3_enable_pm_interrupts - + * + * Enabling interrupts for the entire performance monitoring unit. + * Enables the interrupt bits in the pm_status register. + */ + +void ps3_enable_pm_interrupts(u32 cpu, u32 thread, u32 mask) +{ + if (mask) + ps3_write_pm(cpu, pm_status, mask); +} +EXPORT_SYMBOL_GPL(ps3_enable_pm_interrupts); + +/** + * ps3_enable_pm_interrupts - + * + * Disabling interrupts for the entire performance monitoring unit. + */ + +void ps3_disable_pm_interrupts(u32 cpu) +{ + ps3_get_and_clear_pm_interrupts(cpu); + ps3_write_pm(cpu, pm_status, 0); +} +EXPORT_SYMBOL_GPL(ps3_disable_pm_interrupts); + +/** + * ps3_lpm_open - Open the logical performance monitor device. + * @tb_type: Specifies the type of trace buffer lv1 sould use for this lpm + * instance, specified by one of enum ps3_lpm_tb_type. + * @tb_cache: Optional user supplied buffer to use as the trace buffer cache. + * If NULL, the driver will allocate and manage an internal buffer. + * Unused when when @tb_type is PS3_LPM_TB_TYPE_NONE. + * @tb_cache_size: The size in bytes of the user supplied @tb_cache buffer. + * Unused when @tb_cache is NULL or @tb_type is PS3_LPM_TB_TYPE_NONE. + */ + +int ps3_lpm_open(enum ps3_lpm_tb_type tb_type, void *tb_cache, + u64 tb_cache_size) +{ + int result; + u64 tb_size; + + BUG_ON(!lpm_priv); + BUG_ON(tb_type != PS3_LPM_TB_TYPE_NONE + && tb_type != PS3_LPM_TB_TYPE_INTERNAL); + + if (tb_type == PS3_LPM_TB_TYPE_NONE && tb_cache) + dev_dbg(sbd_core(), "%s:%u: bad in vals\n", __func__, __LINE__); + + if (!atomic_add_unless(&lpm_priv->open, 1, 1)) { + dev_dbg(sbd_core(), "%s:%u: busy\n", __func__, __LINE__); + return -EBUSY; + } + + /* Note tb_cache needs 128 byte alignment. */ + + if (tb_type == PS3_LPM_TB_TYPE_NONE) { + lpm_priv->tb_cache_size = 0; + lpm_priv->tb_cache_internal = NULL; + lpm_priv->tb_cache = NULL; + } else if (tb_cache) { + if (tb_cache != (void *)_ALIGN_UP((unsigned long)tb_cache, 128) + || tb_cache_size != _ALIGN_UP(tb_cache_size, 128)) { + dev_err(sbd_core(), "%s:%u: unaligned tb_cache\n", + __func__, __LINE__); + result = -EINVAL; + goto fail_align; + } + lpm_priv->tb_cache_size = tb_cache_size; + lpm_priv->tb_cache_internal = NULL; + lpm_priv->tb_cache = tb_cache; + } else { + lpm_priv->tb_cache_size = PS3_LPM_DEFAULT_TB_CACHE_SIZE; + lpm_priv->tb_cache_internal = kzalloc( + lpm_priv->tb_cache_size + 127, GFP_KERNEL); + if (!lpm_priv->tb_cache_internal) { + dev_err(sbd_core(), "%s:%u: alloc internal tb_cache " + "failed\n", __func__, __LINE__); + result = -ENOMEM; + goto fail_malloc; + } + lpm_priv->tb_cache = (void *)_ALIGN_UP( + (unsigned long)lpm_priv->tb_cache_internal, 128); + } + + result = lv1_construct_lpm(lpm_priv->node_id, tb_type, 0, 0, + ps3_mm_phys_to_lpar(__pa(lpm_priv->tb_cache)), + lpm_priv->tb_cache_size, &lpm_priv->lpm_id, + &lpm_priv->outlet_id, &tb_size); + + if (result) { + dev_err(sbd_core(), "%s:%u: lv1_construct_lpm failed: %s\n", + __func__, __LINE__, ps3_result(result)); + result = -EINVAL; + goto fail_construct; + } + + lpm_priv->shadow.pm_control = PS3_LPM_SHADOW_REG_INIT; + lpm_priv->shadow.pm_start_stop = PS3_LPM_SHADOW_REG_INIT; + lpm_priv->shadow.pm_interval = PS3_LPM_SHADOW_REG_INIT; + lpm_priv->shadow.group_control = PS3_LPM_SHADOW_REG_INIT; + lpm_priv->shadow.debug_bus_control = PS3_LPM_SHADOW_REG_INIT; + + dev_dbg(sbd_core(), "%s:%u: lpm_id 0x%lx, outlet_id 0x%lx, " + "tb_size 0x%lx\n", __func__, __LINE__, lpm_priv->lpm_id, + lpm_priv->outlet_id, tb_size); + + return 0; + +fail_construct: + kfree(lpm_priv->tb_cache_internal); + lpm_priv->tb_cache_internal = NULL; +fail_malloc: +fail_align: + atomic_dec(&lpm_priv->open); + return result; +} +EXPORT_SYMBOL_GPL(ps3_lpm_open); + +/** + * ps3_lpm_close - Close the lpm device. + * + */ + +int ps3_lpm_close(void) +{ + dev_dbg(sbd_core(), "%s:%u\n", __func__, __LINE__); + + lv1_destruct_lpm(lpm_priv->lpm_id); + lpm_priv->lpm_id = 0; + + kfree(lpm_priv->tb_cache_internal); + lpm_priv->tb_cache_internal = NULL; + + atomic_dec(&lpm_priv->open); + return 0; +} +EXPORT_SYMBOL_GPL(ps3_lpm_close); + +static int __devinit ps3_lpm_probe(struct ps3_system_bus_device *dev) +{ + dev_dbg(&dev->core, " -> %s:%u\n", __func__, __LINE__); + + if (lpm_priv) { + dev_info(&dev->core, "%s:%u: called twice\n", + __func__, __LINE__); + return -EBUSY; + } + + lpm_priv = kzalloc(sizeof(*lpm_priv), GFP_KERNEL); + + if (!lpm_priv) + return -ENOMEM; + + lpm_priv->sbd = dev; + lpm_priv->node_id = dev->lpm.node_id; + lpm_priv->pu_id = dev->lpm.pu_id; + lpm_priv->rights = dev->lpm.rights; + + dev_info(&dev->core, " <- %s:%u:\n", __func__, __LINE__); + + return 0; +} + +static int ps3_lpm_remove(struct ps3_system_bus_device *dev) +{ + dev_dbg(&dev->core, " -> %s:%u:\n", __func__, __LINE__); + + ps3_lpm_close(); + + kfree(lpm_priv); + lpm_priv = NULL; + + dev_info(&dev->core, " <- %s:%u:\n", __func__, __LINE__); + return 0; +} + +static struct ps3_system_bus_driver ps3_lpm_driver = { + .match_id = PS3_MATCH_ID_LPM, + .core.name = "ps3-lpm", + .core.owner = THIS_MODULE, + .probe = ps3_lpm_probe, + .remove = ps3_lpm_remove, + .shutdown = ps3_lpm_remove, +}; + +static int __init ps3_lpm_init(void) +{ + pr_debug("%s:%d:\n", __func__, __LINE__); + return ps3_system_bus_driver_register(&ps3_lpm_driver); +} + +static void __exit ps3_lpm_exit(void) +{ + pr_debug("%s:%d:\n", __func__, __LINE__); + ps3_system_bus_driver_unregister(&ps3_lpm_driver); +} + +module_init(ps3_lpm_init); +module_exit(ps3_lpm_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("PS3 Logical Performance Monitor Driver"); +MODULE_AUTHOR("Sony Corporation"); +MODULE_ALIAS(PS3_MODULE_ALIAS_LPM); diff --git a/drivers/ps3/ps3-sys-manager.c b/drivers/ps3/ps3-sys-manager.c index 8461b08ab9fb..c3c3aba3ffce 100644 --- a/drivers/ps3/ps3-sys-manager.c +++ b/drivers/ps3/ps3-sys-manager.c @@ -452,7 +452,7 @@ static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev) case PS3_SM_EVENT_THERMAL_ALERT: dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n", __func__, __LINE__, event.value); - printk(KERN_INFO "PS3 Thermal Alert Zone %u\n", event.value); + pr_info("PS3 Thermal Alert Zone %u\n", event.value); break; case PS3_SM_EVENT_THERMAL_CLEARED: dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n", @@ -488,7 +488,7 @@ static int ps3_sys_manager_handle_cmd(struct ps3_system_bus_device *dev) result = ps3_vuart_read(dev, &cmd, sizeof(cmd)); BUG_ON(result && "need to retry here"); - if(result) + if (result) return result; if (cmd.version != 1) { @@ -521,7 +521,7 @@ static int ps3_sys_manager_handle_msg(struct ps3_system_bus_device *dev) result = ps3_vuart_read(dev, &header, sizeof(struct ps3_sys_manager_header)); - if(result) + if (result) return result; if (header.version != 1) { @@ -589,9 +589,9 @@ static void ps3_sys_manager_final_power_off(struct ps3_system_bus_device *dev) PS3_SM_WAKE_DEFAULT); ps3_sys_manager_send_request_shutdown(dev); - printk(KERN_EMERG "System Halted, OK to turn off power\n"); + pr_emerg("System Halted, OK to turn off power\n"); - while(1) + while (1) ps3_sys_manager_handle_msg(dev); } @@ -626,9 +626,9 @@ static void ps3_sys_manager_final_restart(struct ps3_system_bus_device *dev) PS3_SM_WAKE_DEFAULT); ps3_sys_manager_send_request_shutdown(dev); - printk(KERN_EMERG "System Halted, OK to turn off power\n"); + pr_emerg("System Halted, OK to turn off power\n"); - while(1) + while (1) ps3_sys_manager_handle_msg(dev); } diff --git a/drivers/ps3/ps3-vuart.c b/drivers/ps3/ps3-vuart.c index bb8d5b1eec90..90c097a7a47a 100644 --- a/drivers/ps3/ps3-vuart.c +++ b/drivers/ps3/ps3-vuart.c @@ -108,18 +108,18 @@ static struct ps3_vuart_port_priv *to_port_priv( struct ports_bmp { u64 status; u64 unused[3]; -} __attribute__ ((aligned (32))); +} __attribute__((aligned(32))); #define dump_ports_bmp(_b) _dump_ports_bmp(_b, __func__, __LINE__) static void __maybe_unused _dump_ports_bmp( - const struct ports_bmp* bmp, const char* func, int line) + const struct ports_bmp *bmp, const char *func, int line) { pr_debug("%s:%d: ports_bmp: %016lxh\n", func, line, bmp->status); } #define dump_port_params(_b) _dump_port_params(_b, __func__, __LINE__) static void __maybe_unused _dump_port_params(unsigned int port_number, - const char* func, int line) + const char *func, int line) { #if defined(DEBUG) static const char *strings[] = { @@ -363,7 +363,7 @@ int ps3_vuart_disable_interrupt_disconnect(struct ps3_system_bus_device *dev) */ static int ps3_vuart_raw_write(struct ps3_system_bus_device *dev, - const void* buf, unsigned int bytes, unsigned long *bytes_written) + const void *buf, unsigned int bytes, unsigned long *bytes_written) { int result; struct ps3_vuart_port_priv *priv = to_port_priv(dev); @@ -431,7 +431,7 @@ void ps3_vuart_clear_rx_bytes(struct ps3_system_bus_device *dev, int result; struct ps3_vuart_port_priv *priv = to_port_priv(dev); u64 bytes_waiting; - void* tmp; + void *tmp; result = ps3_vuart_get_rx_bytes_waiting(dev, &bytes_waiting); @@ -526,9 +526,8 @@ int ps3_vuart_write(struct ps3_system_bus_device *dev, const void *buf, lb = kmalloc(sizeof(struct list_buffer) + bytes, GFP_KERNEL); - if (!lb) { + if (!lb) return -ENOMEM; - } memcpy(lb->data, buf, bytes); lb->head = lb->data; @@ -878,7 +877,7 @@ static int ps3_vuart_handle_port_interrupt(struct ps3_system_bus_device *dev) struct vuart_bus_priv { struct ports_bmp *bmp; unsigned int virq; - struct semaphore probe_mutex; + struct mutex probe_mutex; int use_count; struct ps3_system_bus_device *devices[PORT_COUNT]; } static vuart_bus_priv; @@ -926,9 +925,8 @@ static int ps3_vuart_bus_interrupt_get(void) BUG_ON(vuart_bus_priv.use_count > 2); - if (vuart_bus_priv.use_count != 1) { + if (vuart_bus_priv.use_count != 1) return 0; - } BUG_ON(vuart_bus_priv.bmp); @@ -1017,7 +1015,7 @@ static int ps3_vuart_probe(struct ps3_system_bus_device *dev) return -EINVAL; } - down(&vuart_bus_priv.probe_mutex); + mutex_lock(&vuart_bus_priv.probe_mutex); result = ps3_vuart_bus_interrupt_get(); @@ -1077,7 +1075,7 @@ static int ps3_vuart_probe(struct ps3_system_bus_device *dev) goto fail_probe; } - up(&vuart_bus_priv.probe_mutex); + mutex_unlock(&vuart_bus_priv.probe_mutex); return result; @@ -1090,7 +1088,7 @@ fail_dev_malloc: fail_busy: ps3_vuart_bus_interrupt_put(); fail_setup_interrupt: - up(&vuart_bus_priv.probe_mutex); + mutex_unlock(&vuart_bus_priv.probe_mutex); dev_dbg(&dev->core, "%s:%d: failed\n", __func__, __LINE__); return result; } @@ -1129,7 +1127,7 @@ static int ps3_vuart_remove(struct ps3_system_bus_device *dev) BUG_ON(!dev); - down(&vuart_bus_priv.probe_mutex); + mutex_lock(&vuart_bus_priv.probe_mutex); dev_dbg(&dev->core, " -> %s:%d: match_id %d\n", __func__, __LINE__, dev->match_id); @@ -1137,7 +1135,7 @@ static int ps3_vuart_remove(struct ps3_system_bus_device *dev) if (!dev->core.driver) { dev_dbg(&dev->core, "%s:%d: no driver bound\n", __func__, __LINE__); - up(&vuart_bus_priv.probe_mutex); + mutex_unlock(&vuart_bus_priv.probe_mutex); return 0; } @@ -1160,7 +1158,7 @@ static int ps3_vuart_remove(struct ps3_system_bus_device *dev) priv = NULL; dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__); - up(&vuart_bus_priv.probe_mutex); + mutex_unlock(&vuart_bus_priv.probe_mutex); return 0; } @@ -1180,7 +1178,7 @@ static int ps3_vuart_shutdown(struct ps3_system_bus_device *dev) BUG_ON(!dev); - down(&vuart_bus_priv.probe_mutex); + mutex_lock(&vuart_bus_priv.probe_mutex); dev_dbg(&dev->core, " -> %s:%d: match_id %d\n", __func__, __LINE__, dev->match_id); @@ -1188,7 +1186,7 @@ static int ps3_vuart_shutdown(struct ps3_system_bus_device *dev) if (!dev->core.driver) { dev_dbg(&dev->core, "%s:%d: no driver bound\n", __func__, __LINE__); - up(&vuart_bus_priv.probe_mutex); + mutex_unlock(&vuart_bus_priv.probe_mutex); return 0; } @@ -1212,7 +1210,7 @@ static int ps3_vuart_shutdown(struct ps3_system_bus_device *dev) dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__); - up(&vuart_bus_priv.probe_mutex); + mutex_unlock(&vuart_bus_priv.probe_mutex); return 0; } @@ -1223,7 +1221,7 @@ static int __init ps3_vuart_bus_init(void) if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) return -ENODEV; - init_MUTEX(&vuart_bus_priv.probe_mutex); + mutex_init(&vuart_bus_priv.probe_mutex); return 0; } diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c index f644807da2f9..80c5f1ba2e49 100644 --- a/drivers/rapidio/rio.c +++ b/drivers/rapidio/rio.c @@ -23,6 +23,7 @@ #include <linux/module.h> #include <linux/spinlock.h> #include <linux/slab.h> +#include <linux/interrupt.h> #include "rio.h" @@ -476,8 +477,8 @@ int rio_init_mports(void) port->iores.end - port->iores.start, port->name)) { printk(KERN_ERR - "RIO: Error requesting master port region %8.8lx-%8.8lx\n", - port->iores.start, port->iores.end - 1); + "RIO: Error requesting master port region 0x%016llx-0x%016llx\n", + (u64)port->iores.start, (u64)port->iores.end - 1); rc = -ENOMEM; goto out; } diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index d7e1996e2fec..d962b74e3114 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -1284,4 +1284,14 @@ config SERIAL_OF_PLATFORM Currently, only 8250 compatible ports are supported, but others can easily be added. +config SERIAL_QE + tristate "Freescale QUICC Engine serial port support" + depends on QUICC_ENGINE + select SERIAL_CORE + select FW_LOADER + default n + help + This driver supports the QE serial ports on Freescale embedded + PowerPC that contain a QUICC Engine. + endmenu diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index af6377d480d7..7eb45534778e 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -64,3 +64,4 @@ obj-$(CONFIG_SERIAL_UARTLITE) += uartlite.o obj-$(CONFIG_SERIAL_NETX) += netx-serial.o obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o +obj-$(CONFIG_SERIAL_QE) += ucc_uart.o diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c index 52fb044bb79a..6ea0366e26ae 100644 --- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c +++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c @@ -52,11 +52,7 @@ #ifdef CONFIG_PPC_CPM_NEW_BINDING void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd) { - u16 __iomem *cpcr = &cpmp->cp_cpcr; - - out_be16(cpcr, port->command | (cmd << 8) | CPM_CR_FLG); - while (in_be16(cpcr) & CPM_CR_FLG) - ; + cpm_command(port->command, cmd); } #else void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd) diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.h b/drivers/serial/cpm_uart/cpm_uart_cpm1.h index 9b5465fb0bbb..ddf46d3c964b 100644 --- a/drivers/serial/cpm_uart/cpm_uart_cpm1.h +++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.h @@ -10,7 +10,7 @@ #ifndef CPM_UART_CPM1_H #define CPM_UART_CPM1_H -#include <asm/commproc.h> +#include <asm/cpm1.h> /* defines for IRQs */ #ifndef CONFIG_PPC_CPM_NEW_BINDING diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c index 882dbc17d590..d9af06a791ba 100644 --- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c +++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c @@ -52,13 +52,7 @@ #ifdef CONFIG_PPC_CPM_NEW_BINDING void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd) { - cpm_cpm2_t __iomem *cp = cpm2_map(im_cpm); - - out_be32(&cp->cp_cpcr, port->command | cmd | CPM_CR_FLG); - while (in_be32(&cp->cp_cpcr) & CPM_CR_FLG) - ; - - cpm2_unmap(cp); + cpm_command(port->command, cmd); } #else void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd) @@ -171,9 +165,9 @@ void scc2_lineif(struct uart_cpm_port *pinfo) * really has to get out of the driver so boards can * be supported in a sane fashion. */ + volatile cpmux_t *cpmux = cpm2_map(im_cpmux); #ifndef CONFIG_STX_GP3 volatile iop_cpm2_t *io = cpm2_map(im_ioport); - volatile cpmux_t *cpmux = cpm2_map(im_cpmux); io->iop_pparb |= 0x008b0000; io->iop_pdirb |= 0x00880000; diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c index ec36ad78d2fe..3c4d29e59b2c 100644 --- a/drivers/serial/mpc52xx_uart.c +++ b/drivers/serial/mpc52xx_uart.c @@ -36,7 +36,7 @@ * DCD. However, the pin multiplexing aren't changed and should be set either * by the bootloader or in the platform init code. * - * The idx field must be equal to the PSC index ( e.g. 0 for PSC1, 1 for PSC2, + * The idx field must be equal to the PSC index (e.g. 0 for PSC1, 1 for PSC2, * and so on). So the PSC1 is mapped to /dev/ttyPSC0, PSC2 to /dev/ttyPSC1 and * so on. But be warned, it's an ABSOLUTE REQUIREMENT ! This is needed mainly * fpr the console code : without this 1:1 mapping, at early boot time, when we @@ -68,11 +68,12 @@ #include <linux/sysrq.h> #include <linux/console.h> -#include <asm/delay.h> -#include <asm/io.h> +#include <linux/delay.h> +#include <linux/io.h> #if defined(CONFIG_PPC_MERGE) -#include <asm/of_platform.h> +#include <linux/of.h> +#include <linux/of_platform.h> #else #include <linux/platform_device.h> #endif @@ -111,23 +112,27 @@ static void mpc52xx_uart_of_enumerate(void); #endif #define PSC(port) ((struct mpc52xx_psc __iomem *)((port)->membase)) +#define FIFO(port) ((struct mpc52xx_psc_fifo __iomem *)(PSC(port)+1)) /* Forward declaration of the interruption handling routine */ -static irqreturn_t mpc52xx_uart_int(int irq,void *dev_id); +static irqreturn_t mpc52xx_uart_int(int irq, void *dev_id); /* Simple macro to test if a port is console or not. This one is taken * for serial_core.c and maybe should be moved to serial_core.h ? */ #ifdef CONFIG_SERIAL_CORE_CONSOLE -#define uart_console(port) ((port)->cons && (port)->cons->index == (port)->line) +#define uart_console(port) \ + ((port)->cons && (port)->cons->index == (port)->line) #else #define uart_console(port) (0) #endif #if defined(CONFIG_PPC_MERGE) static struct of_device_id mpc52xx_uart_of_match[] = { - { .type = "serial", .compatible = "mpc5200-psc-uart", }, + { .type = "serial", .compatible = "fsl,mpc5200-psc-uart", }, + { .type = "serial", .compatible = "mpc5200-psc-uart", }, /* lite5200 */ + { .type = "serial", .compatible = "mpc5200-serial", }, /* efika */ {}, }; #endif @@ -162,7 +167,7 @@ mpc52xx_uart_stop_tx(struct uart_port *port) { /* port->lock taken by caller */ port->read_status_mask &= ~MPC52xx_PSC_IMR_TXRDY; - out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask); + out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); } static void @@ -170,7 +175,7 @@ mpc52xx_uart_start_tx(struct uart_port *port) { /* port->lock taken by caller */ port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY; - out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask); + out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); } static void @@ -184,7 +189,7 @@ mpc52xx_uart_send_xchar(struct uart_port *port, char ch) /* Make sure tx interrupts are on */ /* Truly necessary ??? They should be anyway */ port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY; - out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask); + out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); } spin_unlock_irqrestore(&port->lock, flags); @@ -195,7 +200,7 @@ mpc52xx_uart_stop_rx(struct uart_port *port) { /* port->lock taken by caller */ port->read_status_mask &= ~MPC52xx_PSC_IMR_RXRDY; - out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask); + out_be16(&PSC(port)->mpc52xx_psc_imr, port->read_status_mask); } static void @@ -210,10 +215,10 @@ mpc52xx_uart_break_ctl(struct uart_port *port, int ctl) unsigned long flags; spin_lock_irqsave(&port->lock, flags); - if ( ctl == -1 ) - out_8(&PSC(port)->command,MPC52xx_PSC_START_BRK); + if (ctl == -1) + out_8(&PSC(port)->command, MPC52xx_PSC_START_BRK); else - out_8(&PSC(port)->command,MPC52xx_PSC_STOP_BRK); + out_8(&PSC(port)->command, MPC52xx_PSC_STOP_BRK); spin_unlock_irqrestore(&port->lock, flags); } @@ -222,6 +227,7 @@ static int mpc52xx_uart_startup(struct uart_port *port) { struct mpc52xx_psc __iomem *psc = PSC(port); + struct mpc52xx_psc_fifo __iomem *fifo = FIFO(port); int ret; /* Request IRQ */ @@ -231,23 +237,23 @@ mpc52xx_uart_startup(struct uart_port *port) return ret; /* Reset/activate the port, clear and enable interrupts */ - out_8(&psc->command,MPC52xx_PSC_RST_RX); - out_8(&psc->command,MPC52xx_PSC_RST_TX); + out_8(&psc->command, MPC52xx_PSC_RST_RX); + out_8(&psc->command, MPC52xx_PSC_RST_TX); - out_be32(&psc->sicr,0); /* UART mode DCD ignored */ + out_be32(&psc->sicr, 0); /* UART mode DCD ignored */ out_be16(&psc->mpc52xx_psc_clock_select, 0xdd00); /* /16 prescaler on */ - out_8(&psc->rfcntl, 0x00); - out_be16(&psc->rfalarm, 0x1ff); - out_8(&psc->tfcntl, 0x07); - out_be16(&psc->tfalarm, 0x80); + out_8(&fifo->rfcntl, 0x00); + out_be16(&fifo->rfalarm, 0x1ff); + out_8(&fifo->tfcntl, 0x07); + out_be16(&fifo->tfalarm, 0x80); port->read_status_mask |= MPC52xx_PSC_IMR_RXRDY | MPC52xx_PSC_IMR_TXRDY; - out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask); + out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); - out_8(&psc->command,MPC52xx_PSC_TX_ENABLE); - out_8(&psc->command,MPC52xx_PSC_RX_ENABLE); + out_8(&psc->command, MPC52xx_PSC_TX_ENABLE); + out_8(&psc->command, MPC52xx_PSC_RX_ENABLE); return 0; } @@ -258,12 +264,12 @@ mpc52xx_uart_shutdown(struct uart_port *port) struct mpc52xx_psc __iomem *psc = PSC(port); /* Shut down the port. Leave TX active if on a console port */ - out_8(&psc->command,MPC52xx_PSC_RST_RX); + out_8(&psc->command, MPC52xx_PSC_RST_RX); if (!uart_console(port)) - out_8(&psc->command,MPC52xx_PSC_RST_TX); + out_8(&psc->command, MPC52xx_PSC_RST_TX); port->read_status_mask = 0; - out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask); + out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask); /* Release interrupt */ free_irq(port->irq, port); @@ -271,7 +277,7 @@ mpc52xx_uart_shutdown(struct uart_port *port) static void mpc52xx_uart_set_termios(struct uart_port *port, struct ktermios *new, - struct ktermios *old) + struct ktermios *old) { struct mpc52xx_psc __iomem *psc = PSC(port); unsigned long flags; @@ -283,14 +289,14 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct ktermios *new, mr1 = 0; switch (new->c_cflag & CSIZE) { - case CS5: mr1 |= MPC52xx_PSC_MODE_5_BITS; - break; - case CS6: mr1 |= MPC52xx_PSC_MODE_6_BITS; - break; - case CS7: mr1 |= MPC52xx_PSC_MODE_7_BITS; - break; - case CS8: - default: mr1 |= MPC52xx_PSC_MODE_8_BITS; + case CS5: mr1 |= MPC52xx_PSC_MODE_5_BITS; + break; + case CS6: mr1 |= MPC52xx_PSC_MODE_6_BITS; + break; + case CS7: mr1 |= MPC52xx_PSC_MODE_7_BITS; + break; + case CS8: + default: mr1 |= MPC52xx_PSC_MODE_8_BITS; } if (new->c_cflag & PARENB) { @@ -332,24 +338,24 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct ktermios *new, udelay(1); if (!j) - printk( KERN_ERR "mpc52xx_uart.c: " + printk(KERN_ERR "mpc52xx_uart.c: " "Unable to flush RX & TX fifos in-time in set_termios." - "Some chars may have been lost.\n" ); + "Some chars may have been lost.\n"); /* Reset the TX & RX */ - out_8(&psc->command,MPC52xx_PSC_RST_RX); - out_8(&psc->command,MPC52xx_PSC_RST_TX); + out_8(&psc->command, MPC52xx_PSC_RST_RX); + out_8(&psc->command, MPC52xx_PSC_RST_TX); /* Send new mode settings */ - out_8(&psc->command,MPC52xx_PSC_SEL_MODE_REG_1); - out_8(&psc->mode,mr1); - out_8(&psc->mode,mr2); - out_8(&psc->ctur,ctr >> 8); - out_8(&psc->ctlr,ctr & 0xff); + out_8(&psc->command, MPC52xx_PSC_SEL_MODE_REG_1); + out_8(&psc->mode, mr1); + out_8(&psc->mode, mr2); + out_8(&psc->ctur, ctr >> 8); + out_8(&psc->ctlr, ctr & 0xff); /* Reenable TX & RX */ - out_8(&psc->command,MPC52xx_PSC_TX_ENABLE); - out_8(&psc->command,MPC52xx_PSC_RX_ENABLE); + out_8(&psc->command, MPC52xx_PSC_TX_ENABLE); + out_8(&psc->command, MPC52xx_PSC_RX_ENABLE); /* We're all set, release the lock */ spin_unlock_irqrestore(&port->lock, flags); @@ -364,7 +370,8 @@ mpc52xx_uart_type(struct uart_port *port) static void mpc52xx_uart_release_port(struct uart_port *port) { - if (port->flags & UPF_IOREMAP) { /* remapped by us ? */ + /* remapped by us ? */ + if (port->flags & UPF_IOREMAP) { iounmap(port->membase); port->membase = NULL; } @@ -379,7 +386,7 @@ mpc52xx_uart_request_port(struct uart_port *port) if (port->flags & UPF_IOREMAP) /* Need to remap ? */ port->membase = ioremap(port->mapbase, - sizeof(struct mpc52xx_psc)); + sizeof(struct mpc52xx_psc)); if (!port->membase) return -EINVAL; @@ -398,22 +405,22 @@ mpc52xx_uart_request_port(struct uart_port *port) static void mpc52xx_uart_config_port(struct uart_port *port, int flags) { - if ( (flags & UART_CONFIG_TYPE) && - (mpc52xx_uart_request_port(port) == 0) ) - port->type = PORT_MPC52xx; + if ((flags & UART_CONFIG_TYPE) + && (mpc52xx_uart_request_port(port) == 0)) + port->type = PORT_MPC52xx; } static int mpc52xx_uart_verify_port(struct uart_port *port, struct serial_struct *ser) { - if ( ser->type != PORT_UNKNOWN && ser->type != PORT_MPC52xx ) + if (ser->type != PORT_UNKNOWN && ser->type != PORT_MPC52xx) return -EINVAL; - if ( (ser->irq != port->irq) || - (ser->io_type != SERIAL_IO_MEM) || - (ser->baud_base != port->uartclk) || - (ser->iomem_base != (void*)port->mapbase) || - (ser->hub6 != 0 ) ) + if ((ser->irq != port->irq) || + (ser->io_type != SERIAL_IO_MEM) || + (ser->baud_base != port->uartclk) || + (ser->iomem_base != (void *)port->mapbase) || + (ser->hub6 != 0)) return -EINVAL; return 0; @@ -455,8 +462,8 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port) unsigned short status; /* While we can read, do so ! */ - while ( (status = in_be16(&PSC(port)->mpc52xx_psc_status)) & - MPC52xx_PSC_SR_RXRDY) { + while ((status = in_be16(&PSC(port)->mpc52xx_psc_status)) & + MPC52xx_PSC_SR_RXRDY) { /* Get the char */ ch = in_8(&PSC(port)->mpc52xx_psc_buffer_8); @@ -474,9 +481,9 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port) flag = TTY_NORMAL; port->icount.rx++; - if ( status & (MPC52xx_PSC_SR_PE | - MPC52xx_PSC_SR_FE | - MPC52xx_PSC_SR_RB) ) { + if (status & (MPC52xx_PSC_SR_PE | + MPC52xx_PSC_SR_FE | + MPC52xx_PSC_SR_RB)) { if (status & MPC52xx_PSC_SR_RB) { flag = TTY_BREAK; @@ -487,7 +494,7 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port) flag = TTY_FRAME; /* Clear error condition */ - out_8(&PSC(port)->command,MPC52xx_PSC_RST_ERR_STAT); + out_8(&PSC(port)->command, MPC52xx_PSC_RST_ERR_STAT); } tty_insert_flip_char(tty, ch, flag); @@ -568,16 +575,16 @@ mpc52xx_uart_int(int irq, void *dev_id) /* Do we need to receive chars ? */ /* For this RX interrupts must be on and some chars waiting */ - if ( status & MPC52xx_PSC_IMR_RXRDY ) + if (status & MPC52xx_PSC_IMR_RXRDY) keepgoing |= mpc52xx_uart_int_rx_chars(port); /* Do we need to send chars ? */ /* For this, TX must be ready and TX interrupt enabled */ - if ( status & MPC52xx_PSC_IMR_TXRDY ) + if (status & MPC52xx_PSC_IMR_TXRDY) keepgoing |= mpc52xx_uart_int_tx_chars(port); /* Limit number of iteration */ - if ( !(--pass) ) + if (!(--pass)) keepgoing = 0; } while (keepgoing); @@ -596,7 +603,7 @@ mpc52xx_uart_int(int irq, void *dev_id) static void __init mpc52xx_console_get_options(struct uart_port *port, - int *baud, int *parity, int *bits, int *flow) + int *baud, int *parity, int *bits, int *flow) { struct mpc52xx_psc __iomem *psc = PSC(port); unsigned char mr1; @@ -604,7 +611,7 @@ mpc52xx_console_get_options(struct uart_port *port, pr_debug("mpc52xx_console_get_options(port=%p)\n", port); /* Read the mode registers */ - out_8(&psc->command,MPC52xx_PSC_SEL_MODE_REG_1); + out_8(&psc->command, MPC52xx_PSC_SEL_MODE_REG_1); mr1 = in_8(&psc->mode); /* CT{U,L}R are write-only ! */ @@ -616,11 +623,18 @@ mpc52xx_console_get_options(struct uart_port *port, /* Parse them */ switch (mr1 & MPC52xx_PSC_MODE_BITS_MASK) { - case MPC52xx_PSC_MODE_5_BITS: *bits = 5; break; - case MPC52xx_PSC_MODE_6_BITS: *bits = 6; break; - case MPC52xx_PSC_MODE_7_BITS: *bits = 7; break; - case MPC52xx_PSC_MODE_8_BITS: - default: *bits = 8; + case MPC52xx_PSC_MODE_5_BITS: + *bits = 5; + break; + case MPC52xx_PSC_MODE_6_BITS: + *bits = 6; + break; + case MPC52xx_PSC_MODE_7_BITS: + *bits = 7; + break; + case MPC52xx_PSC_MODE_8_BITS: + default: + *bits = 8; } if (mr1 & MPC52xx_PSC_MODE_PARNONE) @@ -657,7 +671,7 @@ mpc52xx_console_write(struct console *co, const char *s, unsigned int count) /* Wait the TX buffer to be empty */ j = 20000; /* Maximum wait */ while (!(in_be16(&psc->mpc52xx_psc_status) & - MPC52xx_PSC_SR_TXEMP) && --j) + MPC52xx_PSC_SR_TXEMP) && --j) udelay(1); } @@ -730,16 +744,18 @@ mpc52xx_console_setup(struct console *co, char *options) } pr_debug("Console on ttyPSC%x is %s\n", - co->index, mpc52xx_uart_nodes[co->index]->full_name); + co->index, mpc52xx_uart_nodes[co->index]->full_name); /* Fetch register locations */ - if ((ret = of_address_to_resource(np, 0, &res)) != 0) { + ret = of_address_to_resource(np, 0, &res); + if (ret) { pr_debug("Could not get resources for PSC%x\n", co->index); return ret; } /* Search for bus-frequency property in this node or a parent */ - if ((ipb_freq = mpc52xx_find_ipb_freq(np)) == 0) { + ipb_freq = mpc52xx_find_ipb_freq(np); + if (ipb_freq == 0) { pr_debug("Could not find IPB bus frequency!\n"); return -EINVAL; } @@ -757,7 +773,8 @@ mpc52xx_console_setup(struct console *co, char *options) return -EINVAL; pr_debug("mpc52xx-psc uart at %p, mapped to %p, irq=%x, freq=%i\n", - (void*)port->mapbase, port->membase, port->irq, port->uartclk); + (void *)port->mapbase, port->membase, + port->irq, port->uartclk); /* Setup the port parameters accoding to options */ if (options) @@ -766,7 +783,7 @@ mpc52xx_console_setup(struct console *co, char *options) mpc52xx_console_get_options(port, &baud, &parity, &bits, &flow); pr_debug("Setting console parameters: %i %i%c1 flow=%c\n", - baud, bits, parity, flow); + baud, bits, parity, flow); return uart_set_options(port, co, baud, parity, bits, flow); } @@ -781,7 +798,7 @@ static struct console mpc52xx_console = { .device = uart_console_device, .setup = mpc52xx_console_setup, .flags = CON_PRINTBUFFER, - .index = -1, /* Specified on the cmdline (e.g. console=ttyPSC0 ) */ + .index = -1, /* Specified on the cmdline (e.g. console=ttyPSC0) */ .data = &mpc52xx_uart_driver, }; @@ -809,7 +826,6 @@ console_initcall(mpc52xx_console_init); /* ======================================================================== */ static struct uart_driver mpc52xx_uart_driver = { - .owner = THIS_MODULE, .driver_name = "mpc52xx_psc_uart", .dev_name = "ttyPSC", .major = SERIAL_PSC_MAJOR, @@ -837,7 +853,7 @@ mpc52xx_uart_probe(struct platform_device *dev) if (idx < 0 || idx >= MPC52xx_PSC_MAXNUM) return -EINVAL; - if (!mpc52xx_match_psc_function(idx,"uart")) + if (!mpc52xx_match_psc_function(idx, "uart")) return -ENODEV; /* Init the port structure */ @@ -848,13 +864,13 @@ mpc52xx_uart_probe(struct platform_device *dev) port->fifosize = 512; port->iotype = UPIO_MEM; port->flags = UPF_BOOT_AUTOCONF | - ( uart_console(port) ? 0 : UPF_IOREMAP ); + (uart_console(port) ? 0 : UPF_IOREMAP); port->line = idx; port->ops = &mpc52xx_uart_ops; port->dev = &dev->dev; /* Search for IRQ and mapbase */ - for (i=0 ; i<dev->num_resources ; i++, res++) { + for (i = 0 ; i < dev->num_resources ; i++, res++) { if (res->flags & IORESOURCE_MEM) port->mapbase = res->start; else if (res->flags & IORESOURCE_IRQ) @@ -866,7 +882,7 @@ mpc52xx_uart_probe(struct platform_device *dev) /* Add the port to the uart sub-system */ ret = uart_add_one_port(&mpc52xx_uart_driver, port); if (!ret) - platform_set_drvdata(dev, (void*)port); + platform_set_drvdata(dev, (void *)port); return ret; } @@ -917,6 +933,7 @@ static struct platform_driver mpc52xx_uart_platform_driver = { .resume = mpc52xx_uart_resume, #endif .driver = { + .owner = THIS_MODULE, .name = "mpc52xx-psc", }, }; @@ -946,10 +963,11 @@ mpc52xx_uart_of_probe(struct of_device *op, const struct of_device_id *match) if (idx >= MPC52xx_PSC_MAXNUM) return -EINVAL; pr_debug("Found %s assigned to ttyPSC%x\n", - mpc52xx_uart_nodes[idx]->full_name, idx); + mpc52xx_uart_nodes[idx]->full_name, idx); /* Search for bus-frequency property in this node or a parent */ - if ((ipb_freq = mpc52xx_find_ipb_freq(op->node)) == 0) { + ipb_freq = mpc52xx_find_ipb_freq(op->node); + if (ipb_freq == 0) { dev_dbg(&op->dev, "Could not find IPB bus frequency!\n"); return -EINVAL; } @@ -962,22 +980,23 @@ mpc52xx_uart_of_probe(struct of_device *op, const struct of_device_id *match) port->fifosize = 512; port->iotype = UPIO_MEM; port->flags = UPF_BOOT_AUTOCONF | - ( uart_console(port) ? 0 : UPF_IOREMAP ); + (uart_console(port) ? 0 : UPF_IOREMAP); port->line = idx; port->ops = &mpc52xx_uart_ops; port->dev = &op->dev; /* Search for IRQ and mapbase */ - if ((ret = of_address_to_resource(op->node, 0, &res)) != 0) + ret = of_address_to_resource(op->node, 0, &res); + if (ret) return ret; port->mapbase = res.start; port->irq = irq_of_parse_and_map(op->node, 0); dev_dbg(&op->dev, "mpc52xx-psc uart at %p, irq=%x, freq=%i\n", - (void*)port->mapbase, port->irq, port->uartclk); + (void *)port->mapbase, port->irq, port->uartclk); - if ((port->irq==NO_IRQ) || !port->mapbase) { + if ((port->irq == NO_IRQ) || !port->mapbase) { printk(KERN_ERR "Could not allocate resources for PSC\n"); return -EINVAL; } @@ -985,7 +1004,7 @@ mpc52xx_uart_of_probe(struct of_device *op, const struct of_device_id *match) /* Add the port to the uart sub-system */ ret = uart_add_one_port(&mpc52xx_uart_driver, port); if (!ret) - dev_set_drvdata(&op->dev, (void*)port); + dev_set_drvdata(&op->dev, (void *)port); return ret; } @@ -1048,6 +1067,7 @@ mpc52xx_uart_of_assign(struct device_node *np, int idx) if (idx < 0) return; /* No free slot; abort */ + of_node_get(np); /* If the slot is already occupied, then swap slots */ if (mpc52xx_uart_nodes[idx] && (free_idx != -1)) mpc52xx_uart_nodes[free_idx] = mpc52xx_uart_nodes[idx]; @@ -1057,7 +1077,7 @@ mpc52xx_uart_of_assign(struct device_node *np, int idx) static void mpc52xx_uart_of_enumerate(void) { - static int enum_done = 0; + static int enum_done; struct device_node *np; const unsigned int *devno; int i; @@ -1071,7 +1091,7 @@ mpc52xx_uart_of_enumerate(void) /* Is a particular device number requested? */ devno = of_get_property(np, "port-number", NULL); - mpc52xx_uart_of_assign(of_node_get(np), devno ? *devno : -1); + mpc52xx_uart_of_assign(np, devno ? *devno : -1); } enum_done = 1; @@ -1079,15 +1099,13 @@ mpc52xx_uart_of_enumerate(void) for (i = 0; i < MPC52xx_PSC_MAXNUM; i++) { if (mpc52xx_uart_nodes[i]) pr_debug("%s assigned to ttyPSC%x\n", - mpc52xx_uart_nodes[i]->full_name, i); + mpc52xx_uart_nodes[i]->full_name, i); } } MODULE_DEVICE_TABLE(of, mpc52xx_uart_of_match); static struct of_platform_driver mpc52xx_uart_of_driver = { - .owner = THIS_MODULE, - .name = "mpc52xx-psc-uart", .match_table = mpc52xx_uart_of_match, .probe = mpc52xx_uart_of_probe, .remove = mpc52xx_uart_of_remove, @@ -1113,7 +1131,8 @@ mpc52xx_uart_init(void) printk(KERN_INFO "Serial: MPC52xx PSC UART driver\n"); - if ((ret = uart_register_driver(&mpc52xx_uart_driver)) != 0) { + ret = uart_register_driver(&mpc52xx_uart_driver); + if (ret) { printk(KERN_ERR "%s: uart_register_driver failed (%i)\n", __FILE__, ret); return ret; diff --git a/drivers/serial/uartlite.c b/drivers/serial/uartlite.c index 3f593247c41e..80943409edb0 100644 --- a/drivers/serial/uartlite.c +++ b/drivers/serial/uartlite.c @@ -539,7 +539,7 @@ static int __devinit ulite_assign(struct device *dev, int id, u32 base, int irq) * * @dev: pointer to device structure */ -static int __devinit ulite_release(struct device *dev) +static int __devexit ulite_release(struct device *dev) { struct uart_port *port = dev_get_drvdata(dev); int rc = 0; @@ -572,14 +572,14 @@ static int __devinit ulite_probe(struct platform_device *pdev) return ulite_assign(&pdev->dev, pdev->id, res->start, res2->start); } -static int ulite_remove(struct platform_device *pdev) +static int __devexit ulite_remove(struct platform_device *pdev) { return ulite_release(&pdev->dev); } static struct platform_driver ulite_platform_driver = { .probe = ulite_probe, - .remove = ulite_remove, + .remove = __devexit_p(ulite_remove), .driver = { .owner = THIS_MODULE, .name = "uartlite", diff --git a/drivers/serial/ucc_uart.c b/drivers/serial/ucc_uart.c new file mode 100644 index 000000000000..e0994f061001 --- /dev/null +++ b/drivers/serial/ucc_uart.c @@ -0,0 +1,1514 @@ +/* + * Freescale QUICC Engine UART device driver + * + * Author: Timur Tabi <timur@freescale.com> + * + * Copyright 2007 Freescale Semiconductor, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + * + * This driver adds support for UART devices via Freescale's QUICC Engine + * found on some Freescale SOCs. + * + * If Soft-UART support is needed but not already present, then this driver + * will request and upload the "Soft-UART" microcode upon probe. The + * filename of the microcode should be fsl_qe_ucode_uart_X_YZ.bin, where "X" + * is the name of the SOC (e.g. 8323), and YZ is the revision of the SOC, + * (e.g. "11" for 1.1). + */ + +#include <linux/module.h> +#include <linux/serial.h> +#include <linux/serial_core.h> +#include <linux/io.h> +#include <linux/of_platform.h> +#include <linux/dma-mapping.h> + +#include <linux/fs_uart_pd.h> +#include <asm/ucc_slow.h> + +#include <linux/firmware.h> +#include <asm/reg.h> + +/* + * The GUMR flag for Soft UART. This would normally be defined in qe.h, + * but Soft-UART is a hack and we want to keep everything related to it in + * this file. + */ +#define UCC_SLOW_GUMR_H_SUART 0x00004000 /* Soft-UART */ + +/* + * soft_uart is 1 if we need to use Soft-UART mode + */ +static int soft_uart; +/* + * firmware_loaded is 1 if the firmware has been loaded, 0 otherwise. + */ +static int firmware_loaded; + +/* Enable this macro to configure all serial ports in internal loopback + mode */ +/* #define LOOPBACK */ + +/* The major and minor device numbers are defined in + * http://www.lanana.org/docs/device-list/devices-2.6+.txt. For the QE + * UART, we have major number 204 and minor numbers 46 - 49, which are the + * same as for the CPM2. This decision was made because no Freescale part + * has both a CPM and a QE. + */ +#define SERIAL_QE_MAJOR 204 +#define SERIAL_QE_MINOR 46 + +/* Since we only have minor numbers 46 - 49, there is a hard limit of 4 ports */ +#define UCC_MAX_UART 4 + +/* The number of buffer descriptors for receiving characters. */ +#define RX_NUM_FIFO 4 + +/* The number of buffer descriptors for transmitting characters. */ +#define TX_NUM_FIFO 4 + +/* The maximum size of the character buffer for a single RX BD. */ +#define RX_BUF_SIZE 32 + +/* The maximum size of the character buffer for a single TX BD. */ +#define TX_BUF_SIZE 32 + +/* + * The number of jiffies to wait after receiving a close command before the + * device is actually closed. This allows the last few characters to be + * sent over the wire. + */ +#define UCC_WAIT_CLOSING 100 + +struct ucc_uart_pram { + struct ucc_slow_pram common; + u8 res1[8]; /* reserved */ + __be16 maxidl; /* Maximum idle chars */ + __be16 idlc; /* temp idle counter */ + __be16 brkcr; /* Break count register */ + __be16 parec; /* receive parity error counter */ + __be16 frmec; /* receive framing error counter */ + __be16 nosec; /* receive noise counter */ + __be16 brkec; /* receive break condition counter */ + __be16 brkln; /* last received break length */ + __be16 uaddr[2]; /* UART address character 1 & 2 */ + __be16 rtemp; /* Temp storage */ + __be16 toseq; /* Transmit out of sequence char */ + __be16 cchars[8]; /* control characters 1-8 */ + __be16 rccm; /* receive control character mask */ + __be16 rccr; /* receive control character register */ + __be16 rlbc; /* receive last break character */ + __be16 res2; /* reserved */ + __be32 res3; /* reserved, should be cleared */ + u8 res4; /* reserved, should be cleared */ + u8 res5[3]; /* reserved, should be cleared */ + __be32 res6; /* reserved, should be cleared */ + __be32 res7; /* reserved, should be cleared */ + __be32 res8; /* reserved, should be cleared */ + __be32 res9; /* reserved, should be cleared */ + __be32 res10; /* reserved, should be cleared */ + __be32 res11; /* reserved, should be cleared */ + __be32 res12; /* reserved, should be cleared */ + __be32 res13; /* reserved, should be cleared */ +/* The rest is for Soft-UART only */ + __be16 supsmr; /* 0x90, Shadow UPSMR */ + __be16 res92; /* 0x92, reserved, initialize to 0 */ + __be32 rx_state; /* 0x94, RX state, initialize to 0 */ + __be32 rx_cnt; /* 0x98, RX count, initialize to 0 */ + u8 rx_length; /* 0x9C, Char length, set to 1+CL+PEN+1+SL */ + u8 rx_bitmark; /* 0x9D, reserved, initialize to 0 */ + u8 rx_temp_dlst_qe; /* 0x9E, reserved, initialize to 0 */ + u8 res14[0xBC - 0x9F]; /* reserved */ + __be32 dump_ptr; /* 0xBC, Dump pointer */ + __be32 rx_frame_rem; /* 0xC0, reserved, initialize to 0 */ + u8 rx_frame_rem_size; /* 0xC4, reserved, initialize to 0 */ + u8 tx_mode; /* 0xC5, mode, 0=AHDLC, 1=UART */ + __be16 tx_state; /* 0xC6, TX state */ + u8 res15[0xD0 - 0xC8]; /* reserved */ + __be32 resD0; /* 0xD0, reserved, initialize to 0 */ + u8 resD4; /* 0xD4, reserved, initialize to 0 */ + __be16 resD5; /* 0xD5, reserved, initialize to 0 */ +} __attribute__ ((packed)); + +/* SUPSMR definitions, for Soft-UART only */ +#define UCC_UART_SUPSMR_SL 0x8000 +#define UCC_UART_SUPSMR_RPM_MASK 0x6000 +#define UCC_UART_SUPSMR_RPM_ODD 0x0000 +#define UCC_UART_SUPSMR_RPM_LOW 0x2000 +#define UCC_UART_SUPSMR_RPM_EVEN 0x4000 +#define UCC_UART_SUPSMR_RPM_HIGH 0x6000 +#define UCC_UART_SUPSMR_PEN 0x1000 +#define UCC_UART_SUPSMR_TPM_MASK 0x0C00 +#define UCC_UART_SUPSMR_TPM_ODD 0x0000 +#define UCC_UART_SUPSMR_TPM_LOW 0x0400 +#define UCC_UART_SUPSMR_TPM_EVEN 0x0800 +#define UCC_UART_SUPSMR_TPM_HIGH 0x0C00 +#define UCC_UART_SUPSMR_FRZ 0x0100 +#define UCC_UART_SUPSMR_UM_MASK 0x00c0 +#define UCC_UART_SUPSMR_UM_NORMAL 0x0000 +#define UCC_UART_SUPSMR_UM_MAN_MULTI 0x0040 +#define UCC_UART_SUPSMR_UM_AUTO_MULTI 0x00c0 +#define UCC_UART_SUPSMR_CL_MASK 0x0030 +#define UCC_UART_SUPSMR_CL_8 0x0030 +#define UCC_UART_SUPSMR_CL_7 0x0020 +#define UCC_UART_SUPSMR_CL_6 0x0010 +#define UCC_UART_SUPSMR_CL_5 0x0000 + +#define UCC_UART_TX_STATE_AHDLC 0x00 +#define UCC_UART_TX_STATE_UART 0x01 +#define UCC_UART_TX_STATE_X1 0x00 +#define UCC_UART_TX_STATE_X16 0x80 + +#define UCC_UART_PRAM_ALIGNMENT 0x100 + +#define UCC_UART_SIZE_OF_BD UCC_SLOW_SIZE_OF_BD +#define NUM_CONTROL_CHARS 8 + +/* Private per-port data structure */ +struct uart_qe_port { + struct uart_port port; + struct ucc_slow __iomem *uccp; + struct ucc_uart_pram __iomem *uccup; + struct ucc_slow_info us_info; + struct ucc_slow_private *us_private; + struct device_node *np; + unsigned int ucc_num; /* First ucc is 0, not 1 */ + + u16 rx_nrfifos; + u16 rx_fifosize; + u16 tx_nrfifos; + u16 tx_fifosize; + int wait_closing; + u32 flags; + struct qe_bd *rx_bd_base; + struct qe_bd *rx_cur; + struct qe_bd *tx_bd_base; + struct qe_bd *tx_cur; + unsigned char *tx_buf; + unsigned char *rx_buf; + void *bd_virt; /* virtual address of the BD buffers */ + dma_addr_t bd_dma_addr; /* bus address of the BD buffers */ + unsigned int bd_size; /* size of BD buffer space */ +}; + +static struct uart_driver ucc_uart_driver = { + .owner = THIS_MODULE, + .driver_name = "serial", + .dev_name = "ttyQE", + .major = SERIAL_QE_MAJOR, + .minor = SERIAL_QE_MINOR, + .nr = UCC_MAX_UART, +}; + +/* + * Virtual to physical address translation. + * + * Given the virtual address for a character buffer, this function returns + * the physical (DMA) equivalent. + */ +static inline dma_addr_t cpu2qe_addr(void *addr, struct uart_qe_port *qe_port) +{ + if (likely((addr >= qe_port->bd_virt)) && + (addr < (qe_port->bd_virt + qe_port->bd_size))) + return qe_port->bd_dma_addr + (addr - qe_port->bd_virt); + + /* something nasty happened */ + printk(KERN_ERR "%s: addr=%p\n", __FUNCTION__, addr); + BUG(); + return 0; +} + +/* + * Physical to virtual address translation. + * + * Given the physical (DMA) address for a character buffer, this function + * returns the virtual equivalent. + */ +static inline void *qe2cpu_addr(dma_addr_t addr, struct uart_qe_port *qe_port) +{ + /* sanity check */ + if (likely((addr >= qe_port->bd_dma_addr) && + (addr < (qe_port->bd_dma_addr + qe_port->bd_size)))) + return qe_port->bd_virt + (addr - qe_port->bd_dma_addr); + + /* something nasty happened */ + printk(KERN_ERR "%s: addr=%x\n", __FUNCTION__, addr); + BUG(); + return NULL; +} + +/* + * Return 1 if the QE is done transmitting all buffers for this port + * + * This function scans each BD in sequence. If we find a BD that is not + * ready (READY=1), then we return 0 indicating that the QE is still sending + * data. If we reach the last BD (WRAP=1), then we know we've scanned + * the entire list, and all BDs are done. + */ +static unsigned int qe_uart_tx_empty(struct uart_port *port) +{ + struct uart_qe_port *qe_port = + container_of(port, struct uart_qe_port, port); + struct qe_bd *bdp = qe_port->tx_bd_base; + + while (1) { + if (in_be16(&bdp->status) & BD_SC_READY) + /* This BD is not done, so return "not done" */ + return 0; + + if (in_be16(&bdp->status) & BD_SC_WRAP) + /* + * This BD is done and it's the last one, so return + * "done" + */ + return 1; + + bdp++; + }; +} + +/* + * Set the modem control lines + * + * Although the QE can control the modem control lines (e.g. CTS), we + * don't need that support. This function must exist, however, otherwise + * the kernel will panic. + */ +void qe_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) +{ +} + +/* + * Get the current modem control line status + * + * Although the QE can control the modem control lines (e.g. CTS), this + * driver currently doesn't support that, so we always return Carrier + * Detect, Data Set Ready, and Clear To Send. + */ +static unsigned int qe_uart_get_mctrl(struct uart_port *port) +{ + return TIOCM_CAR | TIOCM_DSR | TIOCM_CTS; +} + +/* + * Disable the transmit interrupt. + * + * Although this function is called "stop_tx", it does not actually stop + * transmission of data. Instead, it tells the QE to not generate an + * interrupt when the UCC is finished sending characters. + */ +static void qe_uart_stop_tx(struct uart_port *port) +{ + struct uart_qe_port *qe_port = + container_of(port, struct uart_qe_port, port); + + clrbits16(&qe_port->uccp->uccm, UCC_UART_UCCE_TX); +} + +/* + * Transmit as many characters to the HW as possible. + * + * This function will attempt to stuff of all the characters from the + * kernel's transmit buffer into TX BDs. + * + * A return value of non-zero indicates that it sucessfully stuffed all + * characters from the kernel buffer. + * + * A return value of zero indicates that there are still characters in the + * kernel's buffer that have not been transmitted, but there are no more BDs + * available. This function should be called again after a BD has been made + * available. + */ +static int qe_uart_tx_pump(struct uart_qe_port *qe_port) +{ + struct qe_bd *bdp; + unsigned char *p; + unsigned int count; + struct uart_port *port = &qe_port->port; + struct circ_buf *xmit = &port->info->xmit; + + bdp = qe_port->rx_cur; + + /* Handle xon/xoff */ + if (port->x_char) { + /* Pick next descriptor and fill from buffer */ + bdp = qe_port->tx_cur; + + p = qe2cpu_addr(bdp->buf, qe_port); + + *p++ = port->x_char; + out_be16(&bdp->length, 1); + setbits16(&bdp->status, BD_SC_READY); + /* Get next BD. */ + if (in_be16(&bdp->status) & BD_SC_WRAP) + bdp = qe_port->tx_bd_base; + else + bdp++; + qe_port->tx_cur = bdp; + + port->icount.tx++; + port->x_char = 0; + return 1; + } + + if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { + qe_uart_stop_tx(port); + return 0; + } + + /* Pick next descriptor and fill from buffer */ + bdp = qe_port->tx_cur; + + while (!(in_be16(&bdp->status) & BD_SC_READY) && + (xmit->tail != xmit->head)) { + count = 0; + p = qe2cpu_addr(bdp->buf, qe_port); + while (count < qe_port->tx_fifosize) { + *p++ = xmit->buf[xmit->tail]; + xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); + port->icount.tx++; + count++; + if (xmit->head == xmit->tail) + break; + } + + out_be16(&bdp->length, count); + setbits16(&bdp->status, BD_SC_READY); + + /* Get next BD. */ + if (in_be16(&bdp->status) & BD_SC_WRAP) + bdp = qe_port->tx_bd_base; + else + bdp++; + } + qe_port->tx_cur = bdp; + + if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + uart_write_wakeup(port); + + if (uart_circ_empty(xmit)) { + /* The kernel buffer is empty, so turn off TX interrupts. We + don't need to be told when the QE is finished transmitting + the data. */ + qe_uart_stop_tx(port); + return 0; + } + + return 1; +} + +/* + * Start transmitting data + * + * This function will start transmitting any available data, if the port + * isn't already transmitting data. + */ +static void qe_uart_start_tx(struct uart_port *port) +{ + struct uart_qe_port *qe_port = + container_of(port, struct uart_qe_port, port); + + /* If we currently are transmitting, then just return */ + if (in_be16(&qe_port->uccp->uccm) & UCC_UART_UCCE_TX) + return; + + /* Otherwise, pump the port and start transmission */ + if (qe_uart_tx_pump(qe_port)) + setbits16(&qe_port->uccp->uccm, UCC_UART_UCCE_TX); +} + +/* + * Stop transmitting data + */ +static void qe_uart_stop_rx(struct uart_port *port) +{ + struct uart_qe_port *qe_port = + container_of(port, struct uart_qe_port, port); + + clrbits16(&qe_port->uccp->uccm, UCC_UART_UCCE_RX); +} + +/* + * Enable status change interrupts + * + * We don't support status change interrupts, but we need to define this + * function otherwise the kernel will panic. + */ +static void qe_uart_enable_ms(struct uart_port *port) +{ +} + +/* Start or stop sending break signal + * + * This function controls the sending of a break signal. If break_state=1, + * then we start sending a break signal. If break_state=0, then we stop + * sending the break signal. + */ +static void qe_uart_break_ctl(struct uart_port *port, int break_state) +{ + struct uart_qe_port *qe_port = + container_of(port, struct uart_qe_port, port); + + if (break_state) + ucc_slow_stop_tx(qe_port->us_private); + else + ucc_slow_restart_tx(qe_port->us_private); +} + +/* ISR helper function for receiving character. + * + * This function is called by the ISR to handling receiving characters + */ +static void qe_uart_int_rx(struct uart_qe_port *qe_port) +{ + int i; + unsigned char ch, *cp; + struct uart_port *port = &qe_port->port; + struct tty_struct *tty = port->info->tty; + struct qe_bd *bdp; + u16 status; + unsigned int flg; + + /* Just loop through the closed BDs and copy the characters into + * the buffer. + */ + bdp = qe_port->rx_cur; + while (1) { + status = in_be16(&bdp->status); + + /* If this one is empty, then we assume we've read them all */ + if (status & BD_SC_EMPTY) + break; + + /* get number of characters, and check space in RX buffer */ + i = in_be16(&bdp->length); + + /* If we don't have enough room in RX buffer for the entire BD, + * then we try later, which will be the next RX interrupt. + */ + if (tty_buffer_request_room(tty, i) < i) { + dev_dbg(port->dev, "ucc-uart: no room in RX buffer\n"); + return; + } + + /* get pointer */ + cp = qe2cpu_addr(bdp->buf, qe_port); + + /* loop through the buffer */ + while (i-- > 0) { + ch = *cp++; + port->icount.rx++; + flg = TTY_NORMAL; + + if (!i && status & + (BD_SC_BR | BD_SC_FR | BD_SC_PR | BD_SC_OV)) + goto handle_error; + if (uart_handle_sysrq_char(port, ch)) + continue; + +error_return: + tty_insert_flip_char(tty, ch, flg); + + } + + /* This BD is ready to be used again. Clear status. get next */ + clrsetbits_be16(&bdp->status, BD_SC_BR | BD_SC_FR | BD_SC_PR | + BD_SC_OV | BD_SC_ID, BD_SC_EMPTY); + if (in_be16(&bdp->status) & BD_SC_WRAP) + bdp = qe_port->rx_bd_base; + else + bdp++; + + } + + /* Write back buffer pointer */ + qe_port->rx_cur = bdp; + + /* Activate BH processing */ + tty_flip_buffer_push(tty); + + return; + + /* Error processing */ + +handle_error: + /* Statistics */ + if (status & BD_SC_BR) + port->icount.brk++; + if (status & BD_SC_PR) + port->icount.parity++; + if (status & BD_SC_FR) + port->icount.frame++; + if (status & BD_SC_OV) + port->icount.overrun++; + + /* Mask out ignored conditions */ + status &= port->read_status_mask; + + /* Handle the remaining ones */ + if (status & BD_SC_BR) + flg = TTY_BREAK; + else if (status & BD_SC_PR) + flg = TTY_PARITY; + else if (status & BD_SC_FR) + flg = TTY_FRAME; + + /* Overrun does not affect the current character ! */ + if (status & BD_SC_OV) + tty_insert_flip_char(tty, 0, TTY_OVERRUN); +#ifdef SUPPORT_SYSRQ + port->sysrq = 0; +#endif + goto error_return; +} + +/* Interrupt handler + * + * This interrupt handler is called after a BD is processed. + */ +static irqreturn_t qe_uart_int(int irq, void *data) +{ + struct uart_qe_port *qe_port = (struct uart_qe_port *) data; + struct ucc_slow __iomem *uccp = qe_port->uccp; + u16 events; + + /* Clear the interrupts */ + events = in_be16(&uccp->ucce); + out_be16(&uccp->ucce, events); + + if (events & UCC_UART_UCCE_BRKE) + uart_handle_break(&qe_port->port); + + if (events & UCC_UART_UCCE_RX) + qe_uart_int_rx(qe_port); + + if (events & UCC_UART_UCCE_TX) + qe_uart_tx_pump(qe_port); + + return events ? IRQ_HANDLED : IRQ_NONE; +} + +/* Initialize buffer descriptors + * + * This function initializes all of the RX and TX buffer descriptors. + */ +static void qe_uart_initbd(struct uart_qe_port *qe_port) +{ + int i; + void *bd_virt; + struct qe_bd *bdp; + + /* Set the physical address of the host memory buffers in the buffer + * descriptors, and the virtual address for us to work with. + */ + bd_virt = qe_port->bd_virt; + bdp = qe_port->rx_bd_base; + qe_port->rx_cur = qe_port->rx_bd_base; + for (i = 0; i < (qe_port->rx_nrfifos - 1); i++) { + out_be16(&bdp->status, BD_SC_EMPTY | BD_SC_INTRPT); + out_be32(&bdp->buf, cpu2qe_addr(bd_virt, qe_port)); + out_be16(&bdp->length, 0); + bd_virt += qe_port->rx_fifosize; + bdp++; + } + + /* */ + out_be16(&bdp->status, BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT); + out_be32(&bdp->buf, cpu2qe_addr(bd_virt, qe_port)); + out_be16(&bdp->length, 0); + + /* Set the physical address of the host memory + * buffers in the buffer descriptors, and the + * virtual address for us to work with. + */ + bd_virt = qe_port->bd_virt + + L1_CACHE_ALIGN(qe_port->rx_nrfifos * qe_port->rx_fifosize); + qe_port->tx_cur = qe_port->tx_bd_base; + bdp = qe_port->tx_bd_base; + for (i = 0; i < (qe_port->tx_nrfifos - 1); i++) { + out_be16(&bdp->status, BD_SC_INTRPT); + out_be32(&bdp->buf, cpu2qe_addr(bd_virt, qe_port)); + out_be16(&bdp->length, 0); + bd_virt += qe_port->tx_fifosize; + bdp++; + } + + /* Loopback requires the preamble bit to be set on the first TX BD */ +#ifdef LOOPBACK + setbits16(&qe_port->tx_cur->status, BD_SC_P); +#endif + + out_be16(&bdp->status, BD_SC_WRAP | BD_SC_INTRPT); + out_be32(&bdp->buf, cpu2qe_addr(bd_virt, qe_port)); + out_be16(&bdp->length, 0); +} + +/* + * Initialize a UCC for UART. + * + * This function configures a given UCC to be used as a UART device. Basic + * UCC initialization is handled in qe_uart_request_port(). This function + * does all the UART-specific stuff. + */ +static void qe_uart_init_ucc(struct uart_qe_port *qe_port) +{ + u32 cecr_subblock; + struct ucc_slow __iomem *uccp = qe_port->uccp; + struct ucc_uart_pram *uccup = qe_port->uccup; + + unsigned int i; + + /* First, disable TX and RX in the UCC */ + ucc_slow_disable(qe_port->us_private, COMM_DIR_RX_AND_TX); + + /* Program the UCC UART parameter RAM */ + out_8(&uccup->common.rbmr, UCC_BMR_GBL | UCC_BMR_BO_BE); + out_8(&uccup->common.tbmr, UCC_BMR_GBL | UCC_BMR_BO_BE); + out_be16(&uccup->common.mrblr, qe_port->rx_fifosize); + out_be16(&uccup->maxidl, 0x10); + out_be16(&uccup->brkcr, 1); + out_be16(&uccup->parec, 0); + out_be16(&uccup->frmec, 0); + out_be16(&uccup->nosec, 0); + out_be16(&uccup->brkec, 0); + out_be16(&uccup->uaddr[0], 0); + out_be16(&uccup->uaddr[1], 0); + out_be16(&uccup->toseq, 0); + for (i = 0; i < 8; i++) + out_be16(&uccup->cchars[i], 0xC000); + out_be16(&uccup->rccm, 0xc0ff); + + /* Configure the GUMR registers for UART */ + if (soft_uart) + /* Soft-UART requires a 1X multiplier for TX */ + clrsetbits_be32(&uccp->gumr_l, + UCC_SLOW_GUMR_L_MODE_MASK | UCC_SLOW_GUMR_L_TDCR_MASK | + UCC_SLOW_GUMR_L_RDCR_MASK, + UCC_SLOW_GUMR_L_MODE_UART | UCC_SLOW_GUMR_L_TDCR_1 | + UCC_SLOW_GUMR_L_RDCR_16); + else + clrsetbits_be32(&uccp->gumr_l, + UCC_SLOW_GUMR_L_MODE_MASK | UCC_SLOW_GUMR_L_TDCR_MASK | + UCC_SLOW_GUMR_L_RDCR_MASK, + UCC_SLOW_GUMR_L_MODE_UART | UCC_SLOW_GUMR_L_TDCR_16 | + UCC_SLOW_GUMR_L_RDCR_16); + + clrsetbits_be32(&uccp->gumr_h, UCC_SLOW_GUMR_H_RFW, + UCC_SLOW_GUMR_H_TRX | UCC_SLOW_GUMR_H_TTX); + +#ifdef LOOPBACK + clrsetbits_be32(&uccp->gumr_l, UCC_SLOW_GUMR_L_DIAG_MASK, + UCC_SLOW_GUMR_L_DIAG_LOOP); + clrsetbits_be32(&uccp->gumr_h, + UCC_SLOW_GUMR_H_CTSP | UCC_SLOW_GUMR_H_RSYN, + UCC_SLOW_GUMR_H_CDS); +#endif + + /* Enable rx interrupts and clear all pending events. */ + out_be16(&uccp->uccm, 0); + out_be16(&uccp->ucce, 0xffff); + out_be16(&uccp->udsr, 0x7e7e); + + /* Initialize UPSMR */ + out_be16(&uccp->upsmr, 0); + + if (soft_uart) { + out_be16(&uccup->supsmr, 0x30); + out_be16(&uccup->res92, 0); + out_be32(&uccup->rx_state, 0); + out_be32(&uccup->rx_cnt, 0); + out_8(&uccup->rx_bitmark, 0); + out_8(&uccup->rx_length, 10); + out_be32(&uccup->dump_ptr, 0x4000); + out_8(&uccup->rx_temp_dlst_qe, 0); + out_be32(&uccup->rx_frame_rem, 0); + out_8(&uccup->rx_frame_rem_size, 0); + /* Soft-UART requires TX to be 1X */ + out_8(&uccup->tx_mode, + UCC_UART_TX_STATE_UART | UCC_UART_TX_STATE_X1); + out_be16(&uccup->tx_state, 0); + out_8(&uccup->resD4, 0); + out_be16(&uccup->resD5, 0); + + /* Set UART mode. + * Enable receive and transmit. + */ + + /* From the microcode errata: + * 1.GUMR_L register, set mode=0010 (QMC). + * 2.Set GUMR_H[17] bit. (UART/AHDLC mode). + * 3.Set GUMR_H[19:20] (Transparent mode) + * 4.Clear GUMR_H[26] (RFW) + * ... + * 6.Receiver must use 16x over sampling + */ + clrsetbits_be32(&uccp->gumr_l, + UCC_SLOW_GUMR_L_MODE_MASK | UCC_SLOW_GUMR_L_TDCR_MASK | + UCC_SLOW_GUMR_L_RDCR_MASK, + UCC_SLOW_GUMR_L_MODE_QMC | UCC_SLOW_GUMR_L_TDCR_16 | + UCC_SLOW_GUMR_L_RDCR_16); + + clrsetbits_be32(&uccp->gumr_h, + UCC_SLOW_GUMR_H_RFW | UCC_SLOW_GUMR_H_RSYN, + UCC_SLOW_GUMR_H_SUART | UCC_SLOW_GUMR_H_TRX | + UCC_SLOW_GUMR_H_TTX | UCC_SLOW_GUMR_H_TFL); + +#ifdef LOOPBACK + clrsetbits_be32(&uccp->gumr_l, UCC_SLOW_GUMR_L_DIAG_MASK, + UCC_SLOW_GUMR_L_DIAG_LOOP); + clrbits32(&uccp->gumr_h, UCC_SLOW_GUMR_H_CTSP | + UCC_SLOW_GUMR_H_CDS); +#endif + + cecr_subblock = ucc_slow_get_qe_cr_subblock(qe_port->ucc_num); + qe_issue_cmd(QE_INIT_TX_RX, cecr_subblock, + QE_CR_PROTOCOL_UNSPECIFIED, 0); + } +} + +/* + * Initialize the port. + */ +static int qe_uart_startup(struct uart_port *port) +{ + struct uart_qe_port *qe_port = + container_of(port, struct uart_qe_port, port); + int ret; + + /* + * If we're using Soft-UART mode, then we need to make sure the + * firmware has been uploaded first. + */ + if (soft_uart && !firmware_loaded) { + dev_err(port->dev, "Soft-UART firmware not uploaded\n"); + return -ENODEV; + } + + qe_uart_initbd(qe_port); + qe_uart_init_ucc(qe_port); + + /* Install interrupt handler. */ + ret = request_irq(port->irq, qe_uart_int, IRQF_SHARED, "ucc-uart", + qe_port); + if (ret) { + dev_err(port->dev, "could not claim IRQ %u\n", port->irq); + return ret; + } + + /* Startup rx-int */ + setbits16(&qe_port->uccp->uccm, UCC_UART_UCCE_RX); + ucc_slow_enable(qe_port->us_private, COMM_DIR_RX_AND_TX); + + return 0; +} + +/* + * Shutdown the port. + */ +static void qe_uart_shutdown(struct uart_port *port) +{ + struct uart_qe_port *qe_port = + container_of(port, struct uart_qe_port, port); + struct ucc_slow __iomem *uccp = qe_port->uccp; + unsigned int timeout = 20; + + /* Disable RX and TX */ + + /* Wait for all the BDs marked sent */ + while (!qe_uart_tx_empty(port)) { + if (!--timeout) { + dev_warn(port->dev, "shutdown timeout\n"); + break; + } + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(2); + } + + if (qe_port->wait_closing) { + /* Wait a bit longer */ + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(qe_port->wait_closing); + } + + /* Stop uarts */ + ucc_slow_disable(qe_port->us_private, COMM_DIR_RX_AND_TX); + clrbits16(&uccp->uccm, UCC_UART_UCCE_TX | UCC_UART_UCCE_RX); + + /* Shut them really down and reinit buffer descriptors */ + ucc_slow_graceful_stop_tx(qe_port->us_private); + qe_uart_initbd(qe_port); + + free_irq(port->irq, qe_port); +} + +/* + * Set the serial port parameters. + */ +static void qe_uart_set_termios(struct uart_port *port, + struct ktermios *termios, struct ktermios *old) +{ + struct uart_qe_port *qe_port = + container_of(port, struct uart_qe_port, port); + struct ucc_slow __iomem *uccp = qe_port->uccp; + unsigned int baud; + unsigned long flags; + u16 upsmr = in_be16(&uccp->upsmr); + struct ucc_uart_pram __iomem *uccup = qe_port->uccup; + u16 supsmr = in_be16(&uccup->supsmr); + u8 char_length = 2; /* 1 + CL + PEN + 1 + SL */ + + /* Character length programmed into the mode register is the + * sum of: 1 start bit, number of data bits, 0 or 1 parity bit, + * 1 or 2 stop bits, minus 1. + * The value 'bits' counts this for us. + */ + + /* byte size */ + upsmr &= UCC_UART_UPSMR_CL_MASK; + supsmr &= UCC_UART_SUPSMR_CL_MASK; + + switch (termios->c_cflag & CSIZE) { + case CS5: + upsmr |= UCC_UART_UPSMR_CL_5; + supsmr |= UCC_UART_SUPSMR_CL_5; + char_length += 5; + break; + case CS6: + upsmr |= UCC_UART_UPSMR_CL_6; + supsmr |= UCC_UART_SUPSMR_CL_6; + char_length += 6; + break; + case CS7: + upsmr |= UCC_UART_UPSMR_CL_7; + supsmr |= UCC_UART_SUPSMR_CL_7; + char_length += 7; + break; + default: /* case CS8 */ + upsmr |= UCC_UART_UPSMR_CL_8; + supsmr |= UCC_UART_SUPSMR_CL_8; + char_length += 8; + break; + } + + /* If CSTOPB is set, we want two stop bits */ + if (termios->c_cflag & CSTOPB) { + upsmr |= UCC_UART_UPSMR_SL; + supsmr |= UCC_UART_SUPSMR_SL; + char_length++; /* + SL */ + } + + if (termios->c_cflag & PARENB) { + upsmr |= UCC_UART_UPSMR_PEN; + supsmr |= UCC_UART_SUPSMR_PEN; + char_length++; /* + PEN */ + + if (!(termios->c_cflag & PARODD)) { + upsmr &= ~(UCC_UART_UPSMR_RPM_MASK | + UCC_UART_UPSMR_TPM_MASK); + upsmr |= UCC_UART_UPSMR_RPM_EVEN | + UCC_UART_UPSMR_TPM_EVEN; + supsmr &= ~(UCC_UART_SUPSMR_RPM_MASK | + UCC_UART_SUPSMR_TPM_MASK); + supsmr |= UCC_UART_SUPSMR_RPM_EVEN | + UCC_UART_SUPSMR_TPM_EVEN; + } + } + + /* + * Set up parity check flag + */ + port->read_status_mask = BD_SC_EMPTY | BD_SC_OV; + if (termios->c_iflag & INPCK) + port->read_status_mask |= BD_SC_FR | BD_SC_PR; + if (termios->c_iflag & (BRKINT | PARMRK)) + port->read_status_mask |= BD_SC_BR; + + /* + * Characters to ignore + */ + port->ignore_status_mask = 0; + if (termios->c_iflag & IGNPAR) + port->ignore_status_mask |= BD_SC_PR | BD_SC_FR; + if (termios->c_iflag & IGNBRK) { + port->ignore_status_mask |= BD_SC_BR; + /* + * If we're ignore parity and break indicators, ignore + * overruns too. (For real raw support). + */ + if (termios->c_iflag & IGNPAR) + port->ignore_status_mask |= BD_SC_OV; + } + /* + * !!! ignore all characters if CREAD is not set + */ + if ((termios->c_cflag & CREAD) == 0) + port->read_status_mask &= ~BD_SC_EMPTY; + + baud = uart_get_baud_rate(port, termios, old, 0, 115200); + + /* Do we really need a spinlock here? */ + spin_lock_irqsave(&port->lock, flags); + + out_be16(&uccp->upsmr, upsmr); + if (soft_uart) { + out_be16(&uccup->supsmr, supsmr); + out_8(&uccup->rx_length, char_length); + + /* Soft-UART requires a 1X multiplier for TX */ + qe_setbrg(qe_port->us_info.rx_clock, baud, 16); + qe_setbrg(qe_port->us_info.tx_clock, baud, 1); + } else { + qe_setbrg(qe_port->us_info.rx_clock, baud, 16); + qe_setbrg(qe_port->us_info.tx_clock, baud, 16); + } + + spin_unlock_irqrestore(&port->lock, flags); +} + +/* + * Return a pointer to a string that describes what kind of port this is. + */ +static const char *qe_uart_type(struct uart_port *port) +{ + return "QE"; +} + +/* + * Allocate any memory and I/O resources required by the port. + */ +static int qe_uart_request_port(struct uart_port *port) +{ + int ret; + struct uart_qe_port *qe_port = + container_of(port, struct uart_qe_port, port); + struct ucc_slow_info *us_info = &qe_port->us_info; + struct ucc_slow_private *uccs; + unsigned int rx_size, tx_size; + void *bd_virt; + dma_addr_t bd_dma_addr = 0; + + ret = ucc_slow_init(us_info, &uccs); + if (ret) { + dev_err(port->dev, "could not initialize UCC%u\n", + qe_port->ucc_num); + return ret; + } + + qe_port->us_private = uccs; + qe_port->uccp = uccs->us_regs; + qe_port->uccup = (struct ucc_uart_pram *) uccs->us_pram; + qe_port->rx_bd_base = uccs->rx_bd; + qe_port->tx_bd_base = uccs->tx_bd; + + /* + * Allocate the transmit and receive data buffers. + */ + + rx_size = L1_CACHE_ALIGN(qe_port->rx_nrfifos * qe_port->rx_fifosize); + tx_size = L1_CACHE_ALIGN(qe_port->tx_nrfifos * qe_port->tx_fifosize); + + bd_virt = dma_alloc_coherent(NULL, rx_size + tx_size, &bd_dma_addr, + GFP_KERNEL); + if (!bd_virt) { + dev_err(port->dev, "could not allocate buffer descriptors\n"); + return -ENOMEM; + } + + qe_port->bd_virt = bd_virt; + qe_port->bd_dma_addr = bd_dma_addr; + qe_port->bd_size = rx_size + tx_size; + + qe_port->rx_buf = bd_virt; + qe_port->tx_buf = qe_port->rx_buf + rx_size; + + return 0; +} + +/* + * Configure the port. + * + * We say we're a CPM-type port because that's mostly true. Once the device + * is configured, this driver operates almost identically to the CPM serial + * driver. + */ +static void qe_uart_config_port(struct uart_port *port, int flags) +{ + if (flags & UART_CONFIG_TYPE) { + port->type = PORT_CPM; + qe_uart_request_port(port); + } +} + +/* + * Release any memory and I/O resources that were allocated in + * qe_uart_request_port(). + */ +static void qe_uart_release_port(struct uart_port *port) +{ + struct uart_qe_port *qe_port = + container_of(port, struct uart_qe_port, port); + struct ucc_slow_private *uccs = qe_port->us_private; + + dma_free_coherent(NULL, qe_port->bd_size, qe_port->bd_virt, + qe_port->bd_dma_addr); + + ucc_slow_free(uccs); +} + +/* + * Verify that the data in serial_struct is suitable for this device. + */ +static int qe_uart_verify_port(struct uart_port *port, + struct serial_struct *ser) +{ + if (ser->type != PORT_UNKNOWN && ser->type != PORT_CPM) + return -EINVAL; + + if (ser->irq < 0 || ser->irq >= NR_IRQS) + return -EINVAL; + + if (ser->baud_base < 9600) + return -EINVAL; + + return 0; +} +/* UART operations + * + * Details on these functions can be found in Documentation/serial/driver + */ +static struct uart_ops qe_uart_pops = { + .tx_empty = qe_uart_tx_empty, + .set_mctrl = qe_uart_set_mctrl, + .get_mctrl = qe_uart_get_mctrl, + .stop_tx = qe_uart_stop_tx, + .start_tx = qe_uart_start_tx, + .stop_rx = qe_uart_stop_rx, + .enable_ms = qe_uart_enable_ms, + .break_ctl = qe_uart_break_ctl, + .startup = qe_uart_startup, + .shutdown = qe_uart_shutdown, + .set_termios = qe_uart_set_termios, + .type = qe_uart_type, + .release_port = qe_uart_release_port, + .request_port = qe_uart_request_port, + .config_port = qe_uart_config_port, + .verify_port = qe_uart_verify_port, +}; + +/* + * Obtain the SOC model number and revision level + * + * This function parses the device tree to obtain the SOC model. It then + * reads the SVR register to the revision. + * + * The device tree stores the SOC model two different ways. + * + * The new way is: + * + * cpu@0 { + * compatible = "PowerPC,8323"; + * device_type = "cpu"; + * ... + * + * + * The old way is: + * PowerPC,8323@0 { + * device_type = "cpu"; + * ... + * + * This code first checks the new way, and then the old way. + */ +static unsigned int soc_info(unsigned int *rev_h, unsigned int *rev_l) +{ + struct device_node *np; + const char *soc_string; + unsigned int svr; + unsigned int soc; + + /* Find the CPU node */ + np = of_find_node_by_type(NULL, "cpu"); + if (!np) + return 0; + /* Find the compatible property */ + soc_string = of_get_property(np, "compatible", NULL); + if (!soc_string) + /* No compatible property, so try the name. */ + soc_string = np->name; + + /* Extract the SOC number from the "PowerPC," string */ + if ((sscanf(soc_string, "PowerPC,%u", &soc) != 1) || !soc) + return 0; + + /* Get the revision from the SVR */ + svr = mfspr(SPRN_SVR); + *rev_h = (svr >> 4) & 0xf; + *rev_l = svr & 0xf; + + return soc; +} + +/* + * requst_firmware_nowait() callback function + * + * This function is called by the kernel when a firmware is made available, + * or if it times out waiting for the firmware. + */ +static void uart_firmware_cont(const struct firmware *fw, void *context) +{ + struct qe_firmware *firmware; + struct device *dev = context; + int ret; + + if (!fw) { + dev_err(dev, "firmware not found\n"); + return; + } + + firmware = (struct qe_firmware *) fw->data; + + if (firmware->header.length != fw->size) { + dev_err(dev, "invalid firmware\n"); + return; + } + + ret = qe_upload_firmware(firmware); + if (ret) { + dev_err(dev, "could not load firmware\n"); + return; + } + + firmware_loaded = 1; +} + +static int ucc_uart_probe(struct of_device *ofdev, + const struct of_device_id *match) +{ + struct device_node *np = ofdev->node; + const unsigned int *iprop; /* Integer OF properties */ + const char *sprop; /* String OF properties */ + struct uart_qe_port *qe_port = NULL; + struct resource res; + int ret; + + /* + * Determine if we need Soft-UART mode + */ + if (of_find_property(np, "soft-uart", NULL)) { + dev_dbg(&ofdev->dev, "using Soft-UART mode\n"); + soft_uart = 1; + } + + /* + * If we are using Soft-UART, determine if we need to upload the + * firmware, too. + */ + if (soft_uart) { + struct qe_firmware_info *qe_fw_info; + + qe_fw_info = qe_get_firmware_info(); + + /* Check if the firmware has been uploaded. */ + if (qe_fw_info && strstr(qe_fw_info->id, "Soft-UART")) { + firmware_loaded = 1; + } else { + char filename[32]; + unsigned int soc; + unsigned int rev_h; + unsigned int rev_l; + + soc = soc_info(&rev_h, &rev_l); + if (!soc) { + dev_err(&ofdev->dev, "unknown CPU model\n"); + return -ENXIO; + } + sprintf(filename, "fsl_qe_ucode_uart_%u_%u%u.bin", + soc, rev_h, rev_l); + + dev_info(&ofdev->dev, "waiting for firmware %s\n", + filename); + + /* + * We call request_firmware_nowait instead of + * request_firmware so that the driver can load and + * initialize the ports without holding up the rest of + * the kernel. If hotplug support is enabled in the + * kernel, then we use it. + */ + ret = request_firmware_nowait(THIS_MODULE, + FW_ACTION_HOTPLUG, filename, &ofdev->dev, + &ofdev->dev, uart_firmware_cont); + if (ret) { + dev_err(&ofdev->dev, + "could not load firmware %s\n", + filename); + return ret; + } + } + } + + qe_port = kzalloc(sizeof(struct uart_qe_port), GFP_KERNEL); + if (!qe_port) { + dev_err(&ofdev->dev, "can't allocate QE port structure\n"); + return -ENOMEM; + } + + /* Search for IRQ and mapbase */ + ret = of_address_to_resource(np, 0, &res); + if (ret) { + dev_err(&ofdev->dev, "missing 'reg' property in device tree\n"); + kfree(qe_port); + return ret; + } + if (!res.start) { + dev_err(&ofdev->dev, "invalid 'reg' property in device tree\n"); + kfree(qe_port); + return -EINVAL; + } + qe_port->port.mapbase = res.start; + + /* Get the UCC number (device ID) */ + /* UCCs are numbered 1-7 */ + iprop = of_get_property(np, "device-id", NULL); + if (!iprop || (*iprop < 1) || (*iprop > UCC_MAX_NUM)) { + dev_err(&ofdev->dev, + "missing or invalid UCC specified in device tree\n"); + kfree(qe_port); + return -ENODEV; + } + qe_port->ucc_num = *iprop - 1; + + /* + * In the future, we should not require the BRG to be specified in the + * device tree. If no clock-source is specified, then just pick a BRG + * to use. This requires a new QE library function that manages BRG + * assignments. + */ + + sprop = of_get_property(np, "rx-clock-name", NULL); + if (!sprop) { + dev_err(&ofdev->dev, "missing rx-clock-name in device tree\n"); + kfree(qe_port); + return -ENODEV; + } + + qe_port->us_info.rx_clock = qe_clock_source(sprop); + if ((qe_port->us_info.rx_clock < QE_BRG1) || + (qe_port->us_info.rx_clock > QE_BRG16)) { + dev_err(&ofdev->dev, "rx-clock-name must be a BRG for UART\n"); + kfree(qe_port); + return -ENODEV; + } + +#ifdef LOOPBACK + /* In internal loopback mode, TX and RX must use the same clock */ + qe_port->us_info.tx_clock = qe_port->us_info.rx_clock; +#else + sprop = of_get_property(np, "tx-clock-name", NULL); + if (!sprop) { + dev_err(&ofdev->dev, "missing tx-clock-name in device tree\n"); + kfree(qe_port); + return -ENODEV; + } + qe_port->us_info.tx_clock = qe_clock_source(sprop); +#endif + if ((qe_port->us_info.tx_clock < QE_BRG1) || + (qe_port->us_info.tx_clock > QE_BRG16)) { + dev_err(&ofdev->dev, "tx-clock-name must be a BRG for UART\n"); + kfree(qe_port); + return -ENODEV; + } + + /* Get the port number, numbered 0-3 */ + iprop = of_get_property(np, "port-number", NULL); + if (!iprop) { + dev_err(&ofdev->dev, "missing port-number in device tree\n"); + kfree(qe_port); + return -EINVAL; + } + qe_port->port.line = *iprop; + if (qe_port->port.line >= UCC_MAX_UART) { + dev_err(&ofdev->dev, "port-number must be 0-%u\n", + UCC_MAX_UART - 1); + kfree(qe_port); + return -EINVAL; + } + + qe_port->port.irq = irq_of_parse_and_map(np, 0); + if (qe_port->port.irq == NO_IRQ) { + dev_err(&ofdev->dev, "could not map IRQ for UCC%u\n", + qe_port->ucc_num + 1); + kfree(qe_port); + return -EINVAL; + } + + /* + * Newer device trees have an "fsl,qe" compatible property for the QE + * node, but we still need to support older device trees. + */ + np = of_find_compatible_node(NULL, NULL, "fsl,qe"); + if (!np) { + np = of_find_node_by_type(NULL, "qe"); + if (!np) { + dev_err(&ofdev->dev, "could not find 'qe' node\n"); + kfree(qe_port); + return -EINVAL; + } + } + + iprop = of_get_property(np, "brg-frequency", NULL); + if (!iprop) { + dev_err(&ofdev->dev, + "missing brg-frequency in device tree\n"); + kfree(qe_port); + return -EINVAL; + } + + if (*iprop) + qe_port->port.uartclk = *iprop; + else { + /* + * Older versions of U-Boot do not initialize the brg-frequency + * property, so in this case we assume the BRG frequency is + * half the QE bus frequency. + */ + iprop = of_get_property(np, "bus-frequency", NULL); + if (!iprop) { + dev_err(&ofdev->dev, + "missing QE bus-frequency in device tree\n"); + kfree(qe_port); + return -EINVAL; + } + if (*iprop) + qe_port->port.uartclk = *iprop / 2; + else { + dev_err(&ofdev->dev, + "invalid QE bus-frequency in device tree\n"); + kfree(qe_port); + return -EINVAL; + } + } + + spin_lock_init(&qe_port->port.lock); + qe_port->np = np; + qe_port->port.dev = &ofdev->dev; + qe_port->port.ops = &qe_uart_pops; + qe_port->port.iotype = UPIO_MEM; + + qe_port->tx_nrfifos = TX_NUM_FIFO; + qe_port->tx_fifosize = TX_BUF_SIZE; + qe_port->rx_nrfifos = RX_NUM_FIFO; + qe_port->rx_fifosize = RX_BUF_SIZE; + + qe_port->wait_closing = UCC_WAIT_CLOSING; + qe_port->port.fifosize = 512; + qe_port->port.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP; + + qe_port->us_info.ucc_num = qe_port->ucc_num; + qe_port->us_info.regs = (phys_addr_t) res.start; + qe_port->us_info.irq = qe_port->port.irq; + + qe_port->us_info.rx_bd_ring_len = qe_port->rx_nrfifos; + qe_port->us_info.tx_bd_ring_len = qe_port->tx_nrfifos; + + /* Make sure ucc_slow_init() initializes both TX and RX */ + qe_port->us_info.init_tx = 1; + qe_port->us_info.init_rx = 1; + + /* Add the port to the uart sub-system. This will cause + * qe_uart_config_port() to be called, so the us_info structure must + * be initialized. + */ + ret = uart_add_one_port(&ucc_uart_driver, &qe_port->port); + if (ret) { + dev_err(&ofdev->dev, "could not add /dev/ttyQE%u\n", + qe_port->port.line); + kfree(qe_port); + return ret; + } + + dev_set_drvdata(&ofdev->dev, qe_port); + + dev_info(&ofdev->dev, "UCC%u assigned to /dev/ttyQE%u\n", + qe_port->ucc_num + 1, qe_port->port.line); + + /* Display the mknod command for this device */ + dev_dbg(&ofdev->dev, "mknod command is 'mknod /dev/ttyQE%u c %u %u'\n", + qe_port->port.line, SERIAL_QE_MAJOR, + SERIAL_QE_MINOR + qe_port->port.line); + + return 0; +} + +static int ucc_uart_remove(struct of_device *ofdev) +{ + struct uart_qe_port *qe_port = dev_get_drvdata(&ofdev->dev); + + dev_info(&ofdev->dev, "removing /dev/ttyQE%u\n", qe_port->port.line); + + uart_remove_one_port(&ucc_uart_driver, &qe_port->port); + + dev_set_drvdata(&ofdev->dev, NULL); + kfree(qe_port); + + return 0; +} + +static struct of_device_id ucc_uart_match[] = { + { + .type = "serial", + .compatible = "ucc_uart", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, ucc_uart_match); + +static struct of_platform_driver ucc_uart_of_driver = { + .owner = THIS_MODULE, + .name = "ucc_uart", + .match_table = ucc_uart_match, + .probe = ucc_uart_probe, + .remove = ucc_uart_remove, +}; + +static int __init ucc_uart_init(void) +{ + int ret; + + printk(KERN_INFO "Freescale QUICC Engine UART device driver\n"); +#ifdef LOOPBACK + printk(KERN_INFO "ucc-uart: Using loopback mode\n"); +#endif + + ret = uart_register_driver(&ucc_uart_driver); + if (ret) { + printk(KERN_ERR "ucc-uart: could not register UART driver\n"); + return ret; + } + + ret = of_register_platform_driver(&ucc_uart_of_driver); + if (ret) + printk(KERN_ERR + "ucc-uart: could not register platform driver\n"); + + return ret; +} + +static void __exit ucc_uart_exit(void) +{ + printk(KERN_INFO + "Freescale QUICC Engine UART device driver unloading\n"); + + of_unregister_platform_driver(&ucc_uart_of_driver); + uart_unregister_driver(&ucc_uart_driver); +} + +module_init(ucc_uart_init); +module_exit(ucc_uart_exit); + +MODULE_DESCRIPTION("Freescale QUICC Engine (QE) UART"); +MODULE_AUTHOR("Timur Tabi <timur@freescale.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS_CHARDEV_MAJOR(SERIAL_QE_MAJOR); + diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c index 7051e6c5edc3..253ed5682a6d 100644 --- a/drivers/spi/mpc52xx_psc_spi.c +++ b/drivers/spi/mpc52xx_psc_spi.c @@ -330,75 +330,13 @@ static void mpc52xx_psc_spi_cleanup(struct spi_device *spi) static int mpc52xx_psc_spi_port_config(int psc_id, struct mpc52xx_psc_spi *mps) { - struct mpc52xx_cdm __iomem *cdm; - struct mpc52xx_gpio __iomem *gpio; struct mpc52xx_psc __iomem *psc = mps->psc; - u32 ul; u32 mclken_div; int ret = 0; -#if defined(CONFIG_PPC_MERGE) - cdm = mpc52xx_find_and_map("mpc5200-cdm"); - gpio = mpc52xx_find_and_map("mpc5200-gpio"); -#else - cdm = ioremap(MPC52xx_PA(MPC52xx_CDM_OFFSET), MPC52xx_CDM_SIZE); - gpio = ioremap(MPC52xx_PA(MPC52xx_GPIO_OFFSET), MPC52xx_GPIO_SIZE); -#endif - if (!cdm || !gpio) { - printk(KERN_ERR "Error mapping CDM/GPIO\n"); - ret = -EFAULT; - goto unmap_regs; - } - /* default sysclk is 512MHz */ - mclken_div = 0x8000 | - (((mps->sysclk ? mps->sysclk : 512000000) / MCLK) & 0x1FF); - - switch (psc_id) { - case 1: - ul = in_be32(&gpio->port_config); - ul &= 0xFFFFFFF8; - ul |= 0x00000006; - out_be32(&gpio->port_config, ul); - out_be16(&cdm->mclken_div_psc1, mclken_div); - ul = in_be32(&cdm->clk_enables); - ul |= 0x00000020; - out_be32(&cdm->clk_enables, ul); - break; - case 2: - ul = in_be32(&gpio->port_config); - ul &= 0xFFFFFF8F; - ul |= 0x00000060; - out_be32(&gpio->port_config, ul); - out_be16(&cdm->mclken_div_psc2, mclken_div); - ul = in_be32(&cdm->clk_enables); - ul |= 0x00000040; - out_be32(&cdm->clk_enables, ul); - break; - case 3: - ul = in_be32(&gpio->port_config); - ul &= 0xFFFFF0FF; - ul |= 0x00000600; - out_be32(&gpio->port_config, ul); - out_be16(&cdm->mclken_div_psc3, mclken_div); - ul = in_be32(&cdm->clk_enables); - ul |= 0x00000080; - out_be32(&cdm->clk_enables, ul); - break; - case 6: - ul = in_be32(&gpio->port_config); - ul &= 0xFF8FFFFF; - ul |= 0x00700000; - out_be32(&gpio->port_config, ul); - out_be16(&cdm->mclken_div_psc6, mclken_div); - ul = in_be32(&cdm->clk_enables); - ul |= 0x00000010; - out_be32(&cdm->clk_enables, ul); - break; - default: - ret = -EINVAL; - goto unmap_regs; - } + mclken_div = (mps->sysclk ? mps->sysclk : 512000000) / MCLK; + mpc52xx_set_psc_clkdiv(psc_id, mclken_div); /* Reset the PSC into a known state */ out_8(&psc->command, MPC52xx_PSC_RST_RX); @@ -422,12 +360,6 @@ static int mpc52xx_psc_spi_port_config(int psc_id, struct mpc52xx_psc_spi *mps) mps->bits_per_word = 8; -unmap_regs: - if (cdm) - iounmap(cdm); - if (gpio) - iounmap(gpio); - return ret; } @@ -623,8 +555,9 @@ static int __exit mpc52xx_psc_spi_of_remove(struct of_device *op) } static struct of_device_id mpc52xx_psc_spi_of_match[] = { - { .type = "spi", .compatible = "mpc5200-psc-spi", }, - {}, + { .compatible = "fsl,mpc5200-psc-spi", }, + { .compatible = "mpc5200-psc-spi", }, /* old */ + {} }; MODULE_DEVICE_TABLE(of, mpc52xx_psc_spi_of_match); diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c index 4580b9cf625d..04f7cd9fc261 100644 --- a/drivers/spi/spi_mpc83xx.c +++ b/drivers/spi/spi_mpc83xx.c @@ -436,11 +436,7 @@ static int __init mpc83xx_spi_probe(struct platform_device *dev) mpc83xx_spi->qe_mode = pdata->qe_mode; mpc83xx_spi->get_rx = mpc83xx_spi_rx_buf_u8; mpc83xx_spi->get_tx = mpc83xx_spi_tx_buf_u8; - - if (mpc83xx_spi->qe_mode) - mpc83xx_spi->spibrg = pdata->sysclk / 2; - else - mpc83xx_spi->spibrg = pdata->sysclk; + mpc83xx_spi->spibrg = pdata->sysclk; mpc83xx_spi->rx_shift = 0; mpc83xx_spi->tx_shift = 0; diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index 0c3e6b790b7b..a67252791223 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -136,6 +136,8 @@ ohci_hcd_ppc_of_probe(struct of_device *op, const struct of_device_id *match) ohci = hcd_to_ohci(hcd); if (is_bigendian) { ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC; + if (of_device_is_compatible(dn, "fsl,mpc5200-ohci")) + ohci->flags |= OHCI_QUIRK_FRAME_NO; if (of_device_is_compatible(dn, "mpc5200-ohci")) ohci->flags |= OHCI_QUIRK_FRAME_NO; } |
