From 4c81acab3816c6941900c2abdb412df6cf34bc74 Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Fri, 22 Jan 2016 18:02:54 +0100 Subject: bcma: init serial console directly from ChipCommon code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit UART is connected to and controlled over ChipCommon core. It doesn't have much to do with MIPS core (where we initialize it currently) except just existing on embedded systemms. There isn't point of such cross-core initialization (and we needed #ifdef anyway) so just handle it in ChipCommon. Signed-off-by: Rafał Miłecki Signed-off-by: Kalle Valo --- drivers/bcma/driver_mips.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/bcma/driver_mips.c') diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c index 24424f3fef96..a40a203314db 100644 --- a/drivers/bcma/driver_mips.c +++ b/drivers/bcma/driver_mips.c @@ -337,12 +337,9 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore) void bcma_core_mips_early_init(struct bcma_drv_mips *mcore) { - struct bcma_bus *bus = mcore->core->bus; - if (mcore->early_setup_done) return; - bcma_chipco_serial_init(&bus->drv_cc); bcma_core_mips_flash_detect(mcore); mcore->early_setup_done = true; -- cgit v1.2.3 From 2e62f9b2a41e4ade1a0bb3c1bbda4defe4c67243 Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Fri, 12 Feb 2016 10:15:43 +0100 Subject: bcma: drop unneeded fields from bcma_pflash struct MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Most of info stored in this struct wasn't really used anywhere as we put all that data in platform data & resource as well. Signed-off-by: Rafał Miłecki Signed-off-by: Kalle Valo --- drivers/bcma/driver_mips.c | 11 ++++------- include/linux/bcma/bcma_driver_chipcommon.h | 3 --- 2 files changed, 4 insertions(+), 10 deletions(-) (limited to 'drivers/bcma/driver_mips.c') diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c index a40a203314db..20c134c016dc 100644 --- a/drivers/bcma/driver_mips.c +++ b/drivers/bcma/driver_mips.c @@ -288,18 +288,15 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore) case BCMA_CC_FLASHT_PARA: bcma_debug(bus, "Found parallel flash\n"); pflash->present = true; - pflash->window = BCMA_SOC_FLASH2; - pflash->window_size = BCMA_SOC_FLASH2_SZ; if ((bcma_read32(cc->core, BCMA_CC_FLASH_CFG) & BCMA_CC_FLASH_CFG_DS) == 0) - pflash->buswidth = 1; + bcma_pflash_data.width = 1; else - pflash->buswidth = 2; + bcma_pflash_data.width = 2; - bcma_pflash_data.width = pflash->buswidth; - bcma_pflash_resource.start = pflash->window; - bcma_pflash_resource.end = pflash->window + pflash->window_size; + bcma_pflash_resource.start = BCMA_SOC_FLASH2; + bcma_pflash_resource.end = BCMA_SOC_FLASH2 + BCMA_SOC_FLASH2_SZ; break; default: diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h index 700d0c6f7480..16eaaad9dda5 100644 --- a/include/linux/bcma/bcma_driver_chipcommon.h +++ b/include/linux/bcma/bcma_driver_chipcommon.h @@ -579,9 +579,6 @@ struct bcma_chipcommon_pmu { #ifdef CONFIG_BCMA_DRIVER_MIPS struct bcma_pflash { bool present; - u8 buswidth; - u32 window; - u32 window_size; }; #ifdef CONFIG_BCMA_SFLASH -- cgit v1.2.3 From d6a3b51ada68c2bd3e184f4729ce626a1721cf74 Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Fri, 12 Feb 2016 10:15:44 +0100 Subject: bcma: move parallel flash support to separated file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This follows the way of handling other flashes and cleans code a bit. As next task we will want to move flash code to ChipCommon driver as: 1) Flash controllers are accesible using ChipCommon registers 2) This code isn't MIPS specific This change prepares bcma for that. Signed-off-by: Rafał Miłecki Signed-off-by: Kalle Valo --- drivers/bcma/Kconfig | 5 +++ drivers/bcma/Makefile | 1 + drivers/bcma/bcma_private.h | 18 +++++++++-- drivers/bcma/driver_chipcommon_pflash.c | 49 +++++++++++++++++++++++++++++ drivers/bcma/driver_mips.c | 35 +-------------------- drivers/bcma/main.c | 2 +- include/linux/bcma/bcma_driver_chipcommon.h | 8 +++-- 7 files changed, 78 insertions(+), 40 deletions(-) create mode 100644 drivers/bcma/driver_chipcommon_pflash.c (limited to 'drivers/bcma/driver_mips.c') diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig index 023d448ed3fa..efdc2ae8441a 100644 --- a/drivers/bcma/Kconfig +++ b/drivers/bcma/Kconfig @@ -70,6 +70,11 @@ config BCMA_DRIVER_MIPS If unsure, say N +config BCMA_PFLASH + bool + depends on BCMA_DRIVER_MIPS + default y + config BCMA_SFLASH bool depends on BCMA_DRIVER_MIPS diff --git a/drivers/bcma/Makefile b/drivers/bcma/Makefile index f32af9b76bcd..087948a1d20d 100644 --- a/drivers/bcma/Makefile +++ b/drivers/bcma/Makefile @@ -1,6 +1,7 @@ bcma-y += main.o scan.o core.o sprom.o bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o bcma-y += driver_chipcommon_b.o +bcma-$(CONFIG_BCMA_PFLASH) += driver_chipcommon_pflash.o bcma-$(CONFIG_BCMA_SFLASH) += driver_chipcommon_sflash.o bcma-$(CONFIG_BCMA_NFLASH) += driver_chipcommon_nflash.o bcma-$(CONFIG_BCMA_DRIVER_PCI) += driver_pci.o diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h index 7e4ddfb076d3..eda09090cb52 100644 --- a/drivers/bcma/bcma_private.h +++ b/drivers/bcma/bcma_private.h @@ -47,9 +47,6 @@ int bcma_sprom_get(struct bcma_bus *bus); void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc); void bcma_core_chipcommon_init(struct bcma_drv_cc *cc); void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable); -#ifdef CONFIG_BCMA_DRIVER_MIPS -extern struct platform_device bcma_pflash_dev; -#endif /* CONFIG_BCMA_DRIVER_MIPS */ /* driver_chipcommon_b.c */ int bcma_core_chipcommon_b_init(struct bcma_drv_cc_b *ccb); @@ -61,6 +58,21 @@ void bcma_pmu_init(struct bcma_drv_cc *cc); u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc); u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc); +/************************************************** + * driver_chipcommon_sflash.c + **************************************************/ + +#ifdef CONFIG_BCMA_PFLASH +extern struct platform_device bcma_pflash_dev; +int bcma_pflash_init(struct bcma_drv_cc *cc); +#else +static inline int bcma_pflash_init(struct bcma_drv_cc *cc) +{ + bcma_err(cc->core->bus, "Parallel flash not supported\n"); + return 0; +} +#endif /* CONFIG_BCMA_PFLASH */ + #ifdef CONFIG_BCMA_SFLASH /* driver_chipcommon_sflash.c */ int bcma_sflash_init(struct bcma_drv_cc *cc); diff --git a/drivers/bcma/driver_chipcommon_pflash.c b/drivers/bcma/driver_chipcommon_pflash.c new file mode 100644 index 000000000000..3b497c9ee0d4 --- /dev/null +++ b/drivers/bcma/driver_chipcommon_pflash.c @@ -0,0 +1,49 @@ +/* + * Broadcom specific AMBA + * ChipCommon parallel flash + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include "bcma_private.h" + +#include +#include +#include + +static const char * const part_probes[] = { "bcm47xxpart", NULL }; + +static struct physmap_flash_data bcma_pflash_data = { + .part_probe_types = part_probes, +}; + +static struct resource bcma_pflash_resource = { + .name = "bcma_pflash", + .flags = IORESOURCE_MEM, +}; + +struct platform_device bcma_pflash_dev = { + .name = "physmap-flash", + .dev = { + .platform_data = &bcma_pflash_data, + }, + .resource = &bcma_pflash_resource, + .num_resources = 1, +}; + +int bcma_pflash_init(struct bcma_drv_cc *cc) +{ + struct bcma_pflash *pflash = &cc->pflash; + + pflash->present = true; + + if (!(bcma_read32(cc->core, BCMA_CC_FLASH_CFG) & BCMA_CC_FLASH_CFG_DS)) + bcma_pflash_data.width = 1; + else + bcma_pflash_data.width = 2; + + bcma_pflash_resource.start = BCMA_SOC_FLASH2; + bcma_pflash_resource.end = BCMA_SOC_FLASH2 + BCMA_SOC_FLASH2_SZ; + + return 0; +} diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c index 20c134c016dc..967b0e85e2cc 100644 --- a/drivers/bcma/driver_mips.c +++ b/drivers/bcma/driver_mips.c @@ -14,8 +14,6 @@ #include -#include -#include #include #include #include @@ -32,26 +30,6 @@ enum bcma_boot_dev { BCMA_BOOT_DEV_NAND, }; -static const char * const part_probes[] = { "bcm47xxpart", NULL }; - -static struct physmap_flash_data bcma_pflash_data = { - .part_probe_types = part_probes, -}; - -static struct resource bcma_pflash_resource = { - .name = "bcma_pflash", - .flags = IORESOURCE_MEM, -}; - -struct platform_device bcma_pflash_dev = { - .name = "physmap-flash", - .dev = { - .platform_data = &bcma_pflash_data, - }, - .resource = &bcma_pflash_resource, - .num_resources = 1, -}; - /* The 47162a0 hangs when reading MIPS DMP registers registers */ static inline bool bcma_core_mips_bcm47162a0_quirk(struct bcma_device *dev) { @@ -276,7 +254,6 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore) { struct bcma_bus *bus = mcore->core->bus; struct bcma_drv_cc *cc = &bus->drv_cc; - struct bcma_pflash *pflash = &cc->pflash; enum bcma_boot_dev boot_dev; switch (cc->capabilities & BCMA_CC_CAP_FLASHT) { @@ -287,17 +264,7 @@ static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore) break; case BCMA_CC_FLASHT_PARA: bcma_debug(bus, "Found parallel flash\n"); - pflash->present = true; - - if ((bcma_read32(cc->core, BCMA_CC_FLASH_CFG) & - BCMA_CC_FLASH_CFG_DS) == 0) - bcma_pflash_data.width = 1; - else - bcma_pflash_data.width = 2; - - bcma_pflash_resource.start = BCMA_SOC_FLASH2; - bcma_pflash_resource.end = BCMA_SOC_FLASH2 + BCMA_SOC_FLASH2_SZ; - + bcma_pflash_init(cc); break; default: bcma_err(bus, "Flash type not supported\n"); diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c index c466f752b067..786be8fed39e 100644 --- a/drivers/bcma/main.c +++ b/drivers/bcma/main.c @@ -350,7 +350,7 @@ static int bcma_register_devices(struct bcma_bus *bus) bcma_register_core(bus, core); } -#ifdef CONFIG_BCMA_DRIVER_MIPS +#ifdef CONFIG_BCMA_PFLASH if (bus->drv_cc.pflash.present) { err = platform_device_register(&bcma_pflash_dev); if (err) diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h index 16eaaad9dda5..846513c73606 100644 --- a/include/linux/bcma/bcma_driver_chipcommon.h +++ b/include/linux/bcma/bcma_driver_chipcommon.h @@ -576,10 +576,11 @@ struct bcma_chipcommon_pmu { u32 crystalfreq; /* The active crystal frequency (in kHz) */ }; -#ifdef CONFIG_BCMA_DRIVER_MIPS +#ifdef CONFIG_BCMA_PFLASH struct bcma_pflash { bool present; }; +#endif #ifdef CONFIG_BCMA_SFLASH struct mtd_info; @@ -603,6 +604,7 @@ struct bcma_nflash { }; #endif +#ifdef CONFIG_BCMA_DRIVER_MIPS struct bcma_serial_port { void *regs; unsigned long clockspeed; @@ -622,8 +624,9 @@ struct bcma_drv_cc { /* Fast Powerup Delay constant */ u16 fast_pwrup_delay; struct bcma_chipcommon_pmu pmu; -#ifdef CONFIG_BCMA_DRIVER_MIPS +#ifdef CONFIG_BCMA_PFLASH struct bcma_pflash pflash; +#endif #ifdef CONFIG_BCMA_SFLASH struct bcma_sflash sflash; #endif @@ -631,6 +634,7 @@ struct bcma_drv_cc { struct bcma_nflash nflash; #endif +#ifdef CONFIG_BCMA_DRIVER_MIPS int nr_serial_ports; struct bcma_serial_port serial_ports[4]; #endif /* CONFIG_BCMA_DRIVER_MIPS */ -- cgit v1.2.3 From 0ea6f0c582c2675285ad094df0137f4f0de47869 Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Fri, 12 Feb 2016 10:15:45 +0100 Subject: bcma: move flash detection code to ChipCommon core driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Flashes are attached and accessible through ChipCommon core, they aren't connected to MIPS one. Moreover some new ARM devices (e.g. BCM47189) may have serial flash accessibility using ChipCommon registers as well. To support them we can't keep this code in MIPS core driver. Signed-off-by: Rafał Miłecki Signed-off-by: Kalle Valo --- drivers/bcma/driver_chipcommon.c | 30 ++++++++++++++++++++++++++++++ drivers/bcma/driver_mips.c | 27 ++------------------------- 2 files changed, 32 insertions(+), 25 deletions(-) (limited to 'drivers/bcma/driver_mips.c') diff --git a/drivers/bcma/driver_chipcommon.c b/drivers/bcma/driver_chipcommon.c index b0f44a2937b9..921ce1834673 100644 --- a/drivers/bcma/driver_chipcommon.c +++ b/drivers/bcma/driver_chipcommon.c @@ -115,6 +115,33 @@ int bcma_chipco_watchdog_register(struct bcma_drv_cc *cc) return 0; } +static void bcma_core_chipcommon_flash_detect(struct bcma_drv_cc *cc) +{ + struct bcma_bus *bus = cc->core->bus; + + switch (cc->capabilities & BCMA_CC_CAP_FLASHT) { + case BCMA_CC_FLASHT_STSER: + case BCMA_CC_FLASHT_ATSER: + bcma_debug(bus, "Found serial flash\n"); + bcma_sflash_init(cc); + break; + case BCMA_CC_FLASHT_PARA: + bcma_debug(bus, "Found parallel flash\n"); + bcma_pflash_init(cc); + break; + default: + bcma_err(bus, "Flash type not supported\n"); + } + + if (cc->core->id.rev == 38 || + bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) { + if (cc->capabilities & BCMA_CC_CAP_NFLASH) { + bcma_debug(bus, "Found NAND flash\n"); + bcma_nflash_init(cc); + } + } +} + void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc) { struct bcma_bus *bus = cc->core->bus; @@ -136,6 +163,9 @@ void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc) if (IS_BUILTIN(CONFIG_BCM47XX) && bus->hosttype == BCMA_HOSTTYPE_SOC) bcma_chipco_serial_init(cc); + if (bus->hosttype == BCMA_HOSTTYPE_SOC) + bcma_core_chipcommon_flash_detect(cc); + cc->early_setup_done = true; } diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c index 967b0e85e2cc..96f171328200 100644 --- a/drivers/bcma/driver_mips.c +++ b/drivers/bcma/driver_mips.c @@ -250,34 +250,11 @@ static enum bcma_boot_dev bcma_boot_dev(struct bcma_bus *bus) return BCMA_BOOT_DEV_SERIAL; } -static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore) +static void bcma_core_mips_nvram_init(struct bcma_drv_mips *mcore) { struct bcma_bus *bus = mcore->core->bus; - struct bcma_drv_cc *cc = &bus->drv_cc; enum bcma_boot_dev boot_dev; - switch (cc->capabilities & BCMA_CC_CAP_FLASHT) { - case BCMA_CC_FLASHT_STSER: - case BCMA_CC_FLASHT_ATSER: - bcma_debug(bus, "Found serial flash\n"); - bcma_sflash_init(cc); - break; - case BCMA_CC_FLASHT_PARA: - bcma_debug(bus, "Found parallel flash\n"); - bcma_pflash_init(cc); - break; - default: - bcma_err(bus, "Flash type not supported\n"); - } - - if (cc->core->id.rev == 38 || - bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) { - if (cc->capabilities & BCMA_CC_CAP_NFLASH) { - bcma_debug(bus, "Found NAND flash\n"); - bcma_nflash_init(cc); - } - } - /* Determine flash type this SoC boots from */ boot_dev = bcma_boot_dev(bus); switch (boot_dev) { @@ -304,7 +281,7 @@ void bcma_core_mips_early_init(struct bcma_drv_mips *mcore) if (mcore->early_setup_done) return; - bcma_core_mips_flash_detect(mcore); + bcma_core_mips_nvram_init(mcore); mcore->early_setup_done = true; } -- cgit v1.2.3