diff options
65 files changed, 2644 insertions, 353 deletions
diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig index a2cd9beaf37d..38518d450bc0 100644 --- a/arch/arm/common/Kconfig +++ b/arch/arm/common/Kconfig @@ -4,6 +4,13 @@ config ARM_GIC config ARM_VIC bool +config ARM_VIC_NR + int + default 2 + help + The maximum number of VICs available in the system, for + power management. + config ICST525 bool diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c index b2a781d9ce05..887c6eb3a18a 100644 --- a/arch/arm/common/vic.c +++ b/arch/arm/common/vic.c @@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/list.h> #include <linux/io.h> +#include <linux/sysdev.h> #include <asm/mach/irq.h> #include <asm/hardware/vic.h> @@ -39,11 +40,219 @@ static void vic_unmask_irq(unsigned int irq) writel(1 << irq, base + VIC_INT_ENABLE); } +/** + * vic_init2 - common initialisation code + * @base: Base of the VIC. + * + * Common initialisation code for registeration + * and resume. +*/ +static void vic_init2(void __iomem *base) +{ + int i; + + for (i = 0; i < 16; i++) { + void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4); + writel(VIC_VECT_CNTL_ENABLE | i, reg); + } + + writel(32, base + VIC_PL190_DEF_VECT_ADDR); +} + +#if defined(CONFIG_PM) +/** + * struct vic_device - VIC PM device + * @sysdev: The system device which is registered. + * @irq: The IRQ number for the base of the VIC. + * @base: The register base for the VIC. + * @resume_sources: A bitmask of interrupts for resume. + * @resume_irqs: The IRQs enabled for resume. + * @int_select: Save for VIC_INT_SELECT. + * @int_enable: Save for VIC_INT_ENABLE. + * @soft_int: Save for VIC_INT_SOFT. + * @protect: Save for VIC_PROTECT. + */ +struct vic_device { + struct sys_device sysdev; + + void __iomem *base; + int irq; + u32 resume_sources; + u32 resume_irqs; + u32 int_select; + u32 int_enable; + u32 soft_int; + u32 protect; +}; + +/* we cannot allocate memory when VICs are initially registered */ +static struct vic_device vic_devices[CONFIG_ARM_VIC_NR]; + +static inline struct vic_device *to_vic(struct sys_device *sys) +{ + return container_of(sys, struct vic_device, sysdev); +} + +static int vic_id; + +static int vic_class_resume(struct sys_device *dev) +{ + struct vic_device *vic = to_vic(dev); + void __iomem *base = vic->base; + + printk(KERN_DEBUG "%s: resuming vic at %p\n", __func__, base); + + /* re-initialise static settings */ + vic_init2(base); + + writel(vic->int_select, base + VIC_INT_SELECT); + writel(vic->protect, base + VIC_PROTECT); + + /* set the enabled ints and then clear the non-enabled */ + writel(vic->int_enable, base + VIC_INT_ENABLE); + writel(~vic->int_enable, base + VIC_INT_ENABLE_CLEAR); + + /* and the same for the soft-int register */ + + writel(vic->soft_int, base + VIC_INT_SOFT); + writel(~vic->soft_int, base + VIC_INT_SOFT_CLEAR); + + return 0; +} + +static int vic_class_suspend(struct sys_device *dev, pm_message_t state) +{ + struct vic_device *vic = to_vic(dev); + void __iomem *base = vic->base; + + printk(KERN_DEBUG "%s: suspending vic at %p\n", __func__, base); + + vic->int_select = readl(base + VIC_INT_SELECT); + vic->int_enable = readl(base + VIC_INT_ENABLE); + vic->soft_int = readl(base + VIC_INT_SOFT); + vic->protect = readl(base + VIC_PROTECT); + + /* set the interrupts (if any) that are used for + * resuming the system */ + + writel(vic->resume_irqs, base + VIC_INT_ENABLE); + writel(~vic->resume_irqs, base + VIC_INT_ENABLE_CLEAR); + + return 0; +} + +struct sysdev_class vic_class = { + .name = "vic", + .suspend = vic_class_suspend, + .resume = vic_class_resume, +}; + +/** + * vic_pm_register - Register a VIC for later power management control + * @base: The base address of the VIC. + * @irq: The base IRQ for the VIC. + * @resume_sources: bitmask of interrupts allowed for resume sources. + * + * Register the VIC with the system device tree so that it can be notified + * of suspend and resume requests and ensure that the correct actions are + * taken to re-instate the settings on resume. + */ +static void __init vic_pm_register(void __iomem *base, unsigned int irq, u32 resume_sources) +{ + struct vic_device *v; + + if (vic_id >= ARRAY_SIZE(vic_devices)) + printk(KERN_ERR "%s: too few VICs, increase CONFIG_ARM_VIC_NR\n", __func__); + else { + v = &vic_devices[vic_id]; + v->base = base; + v->resume_sources = resume_sources; + v->irq = irq; + vic_id++; + } +} + +/** + * vic_pm_init - initicall to register VIC pm + * + * This is called via late_initcall() to register + * the resources for the VICs due to the early + * nature of the VIC's registration. +*/ +static int __init vic_pm_init(void) +{ + struct vic_device *dev = vic_devices; + int err; + int id; + + if (vic_id == 0) + return 0; + + err = sysdev_class_register(&vic_class); + if (err) { + printk(KERN_ERR "%s: cannot register class\n", __func__); + return err; + } + + for (id = 0; id < vic_id; id++, dev++) { + dev->sysdev.id = id; + dev->sysdev.cls = &vic_class; + + err = sysdev_register(&dev->sysdev); + if (err) { + printk(KERN_ERR "%s: failed to register device\n", + __func__); + return err; + } + } + + return 0; +} + +late_initcall(vic_pm_init); + +static struct vic_device *vic_from_irq(unsigned int irq) +{ + struct vic_device *v = vic_devices; + unsigned int base_irq = irq & ~31; + int id; + + for (id = 0; id < vic_id; id++, v++) { + if (v->irq == base_irq) + return v; + } + + return NULL; +} + +static int vic_set_wake(unsigned int irq, unsigned int on) +{ + struct vic_device *v = vic_from_irq(irq); + unsigned int off = irq & 31; + + if (!v) + return -EINVAL; + + if (on) + v->resume_irqs |= 1 << off; + else + v->resume_irqs &= ~(1 << off); + + return 0; +} + +#else +static inline void vic_pm_register(void __iomem *base, unsigned int irq, u32 arg1) { } + +#define vic_set_wake NULL +#endif /* CONFIG_PM */ + static struct irq_chip vic_chip = { .name = "VIC", .ack = vic_mask_irq, .mask = vic_mask_irq, .unmask = vic_unmask_irq, + .set_wake = vic_set_wake, }; /** @@ -51,9 +260,10 @@ static struct irq_chip vic_chip = { * @base: iomem base address * @irq_start: starting interrupt number, must be muliple of 32 * @vic_sources: bitmask of interrupt sources to allow + * @resume_sources: bitmask of interrupt sources to allow for resume */ void __init vic_init(void __iomem *base, unsigned int irq_start, - u32 vic_sources) + u32 vic_sources, u32 resume_sources) { unsigned int i; @@ -77,12 +287,7 @@ void __init vic_init(void __iomem *base, unsigned int irq_start, writel(value, base + VIC_PL190_VECT_ADDR); } - for (i = 0; i < 16; i++) { - void __iomem *reg = base + VIC_VECT_CNTL0 + (i * 4); - writel(VIC_VECT_CNTL_ENABLE | i, reg); - } - - writel(32, base + VIC_PL190_DEF_VECT_ADDR); + vic_init2(base); for (i = 0; i < 32; i++) { if (vic_sources & (1 << i)) { @@ -94,4 +299,6 @@ void __init vic_init(void __iomem *base, unsigned int irq_start, set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } } + + vic_pm_register(base, irq_start, resume_sources); } diff --git a/arch/arm/include/asm/hardware/vic.h b/arch/arm/include/asm/hardware/vic.h index f87328d4a180..5d72550a8097 100644 --- a/arch/arm/include/asm/hardware/vic.h +++ b/arch/arm/include/asm/hardware/vic.h @@ -41,7 +41,7 @@ #define VIC_PL192_VECT_ADDR 0xF00 #ifndef __ASSEMBLY__ -void vic_init(void __iomem *base, unsigned int irq_start, u32 vic_sources); +void vic_init(void __iomem *base, unsigned int irq_start, u32 vic_sources, u32 resume_sources); #endif #endif diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c index ae24486f858a..6faa3dc29cec 100644 --- a/arch/arm/mach-ep93xx/core.c +++ b/arch/arm/mach-ep93xx/core.c @@ -362,8 +362,8 @@ void __init ep93xx_init_irq(void) { int gpio_irq; - vic_init((void *)EP93XX_VIC1_BASE, 0, EP93XX_VIC1_VALID_IRQ_MASK); - vic_init((void *)EP93XX_VIC2_BASE, 32, EP93XX_VIC2_VALID_IRQ_MASK); + vic_init((void *)EP93XX_VIC1_BASE, 0, EP93XX_VIC1_VALID_IRQ_MASK, 0); + vic_init((void *)EP93XX_VIC2_BASE, 32, EP93XX_VIC2_VALID_IRQ_MASK, 0); for (gpio_irq = gpio_to_irq(0); gpio_irq <= gpio_to_irq(EP93XX_GPIO_LINE_MAX_IRQ); ++gpio_irq) { diff --git a/arch/arm/mach-netx/generic.c b/arch/arm/mach-netx/generic.c index 79df60c20e70..43da8bb4926b 100644 --- a/arch/arm/mach-netx/generic.c +++ b/arch/arm/mach-netx/generic.c @@ -168,7 +168,7 @@ void __init netx_init_irq(void) { int irq; - vic_init(__io(io_p2v(NETX_PA_VIC)), 0, ~0); + vic_init(__io(io_p2v(NETX_PA_VIC)), 0, ~0, 0); for (irq = NETX_IRQ_HIF_CHAINED(0); irq <= NETX_IRQ_HIF_LAST; irq++) { set_irq_chip(irq, &netx_hif_chip); diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig index 63a30d1dd425..41bb65d5b91f 100644 --- a/arch/arm/mach-s3c2410/Kconfig +++ b/arch/arm/mach-s3c2410/Kconfig @@ -59,6 +59,7 @@ config ARCH_H1940 bool "IPAQ H1940" select CPU_S3C2410 select PM_H1940 if PM + select S3C_DEV_USB_HOST help Say Y here if you are using the HP IPAQ H1940 @@ -70,6 +71,7 @@ config PM_H1940 config MACH_N30 bool "Acer N30 family" select CPU_S3C2410 + select S3C_DEV_USB_HOST help Say Y here if you want suppt for the Acer N30, Acer N35, Navman PiN570, Yakumo AlphaX or Airis NC05 PDAs. @@ -82,6 +84,7 @@ config ARCH_BAST select MACH_BAST_IDE select S3C24XX_DCLK select ISA + select S3C_DEV_USB_HOST help Say Y here if you are using the Simtec Electronics EB2410ITX development board (also known as BAST) @@ -89,6 +92,7 @@ config ARCH_BAST config MACH_OTOM bool "NexVision OTOM Board" select CPU_S3C2410 + select S3C_DEV_USB_HOST help Say Y here if you are using the Nex Vision OTOM board @@ -96,6 +100,7 @@ config MACH_AML_M5900 bool "AML M5900 Series" select CPU_S3C2410 select PM_SIMTEC if PM + select S3C_DEV_USB_HOST help Say Y here if you are using the American Microsystems M5900 Series <http://www.amltd.com> @@ -111,6 +116,7 @@ config BAST_PC104_IRQ config MACH_TCT_HAMMER bool "TCT Hammer Board" select CPU_S3C2410 + select S3C_DEV_USB_HOST help Say Y here if you are using the TinCanTools Hammer Board <http://www.tincantools.com> @@ -122,12 +128,14 @@ config MACH_VR1000 select SIMTEC_NOR select MACH_BAST_IDE select CPU_S3C2410 + select S3C_DEV_USB_HOST help Say Y here if you are using the Thorcom VR1000 board. config MACH_QT2410 bool "QT2410" select CPU_S3C2410 + select S3C_DEV_USB_HOST help Say Y here if you are using the Armzone QT2410 diff --git a/arch/arm/mach-s3c2410/include/mach/map.h b/arch/arm/mach-s3c2410/include/mach/map.h index 255fdfeaf957..e99b212cb1ca 100644 --- a/arch/arm/mach-s3c2410/include/mach/map.h +++ b/arch/arm/mach-s3c2410/include/mach/map.h @@ -84,7 +84,6 @@ #define S3C24XX_PA_IRQ S3C2410_PA_IRQ #define S3C24XX_PA_MEMCTRL S3C2410_PA_MEMCTRL -#define S3C24XX_PA_USBHOST S3C2410_PA_USBHOST #define S3C24XX_PA_DMA S3C2410_PA_DMA #define S3C24XX_PA_CLKPWR S3C2410_PA_CLKPWR #define S3C24XX_PA_LCD S3C2410_PA_LCD @@ -102,6 +101,7 @@ #define S3C_PA_IIC S3C2410_PA_IIC #define S3C_PA_UART S3C24XX_PA_UART +#define S3C_PA_USBHOST S3C2410_PA_USBHOST #define S3C_PA_HSMMC0 S3C2443_PA_HSMMC #endif /* __ASM_ARCH_MAP_H */ diff --git a/arch/arm/mach-s3c2410/include/mach/system-reset.h b/arch/arm/mach-s3c2410/include/mach/system-reset.h index b8687f71c304..6faadcee7729 100644 --- a/arch/arm/mach-s3c2410/include/mach/system-reset.h +++ b/arch/arm/mach-s3c2410/include/mach/system-reset.h @@ -11,21 +11,13 @@ */ #include <mach/hardware.h> -#include <linux/io.h> - -#include <plat/regs-watchdog.h> -#include <mach/regs-clock.h> - -#include <linux/clk.h> -#include <linux/err.h> +#include <plat/watchdog-reset.h> extern void (*s3c24xx_reset_hook)(void); static void arch_reset(char mode, const char *cmd) { - struct clk *wdtclk; - if (mode == 's') { cpu_reset(0); } @@ -33,31 +25,7 @@ arch_reset(char mode, const char *cmd) if (s3c24xx_reset_hook) s3c24xx_reset_hook(); - printk("arch_reset: attempting watchdog reset\n"); - - __raw_writel(0, S3C2410_WTCON); /* disable watchdog, to be safe */ - - wdtclk = clk_get(NULL, "watchdog"); - if (!IS_ERR(wdtclk)) { - clk_enable(wdtclk); - } else - printk(KERN_WARNING "%s: warning: cannot get watchdog clock\n", __func__); - - /* put initial values into count and data */ - __raw_writel(0x80, S3C2410_WTCNT); - __raw_writel(0x80, S3C2410_WTDAT); - - /* set the watchdog to go and reset... */ - __raw_writel(S3C2410_WTCON_ENABLE|S3C2410_WTCON_DIV16|S3C2410_WTCON_RSTEN | - S3C2410_WTCON_PRESCALE(0x20), S3C2410_WTCON); - - /* wait for reset to assert... */ - mdelay(500); - - printk(KERN_ERR "Watchdog reset failed to assert reset\n"); - - /* delay to allow the serial port to show the message */ - mdelay(50); + arch_wdt_reset(); /* we'll take a jump through zero as a poor second */ cpu_reset(0); diff --git a/arch/arm/mach-s3c2412/Kconfig b/arch/arm/mach-s3c2412/Kconfig index ca99564ae4b5..63586ffd0ae7 100644 --- a/arch/arm/mach-s3c2412/Kconfig +++ b/arch/arm/mach-s3c2412/Kconfig @@ -38,6 +38,7 @@ menu "S3C2412 Machines" config MACH_JIVE bool "Logitech Jive" select CPU_S3C2412 + select S3C_DEV_USB_HOST help Say Y here if you are using the Logitech Jive. @@ -50,6 +51,7 @@ config MACH_SMDK2413 select CPU_S3C2412 select MACH_S3C2413 select MACH_SMDK + select S3C_DEV_USB_HOST help Say Y here if you are using an SMDK2413 @@ -72,6 +74,7 @@ config MACH_SMDK2412 config MACH_VSTMS bool "VMSTMS" select CPU_S3C2412 + select S3C_DEV_USB_HOST help Say Y here if you are using an VSTMS board diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig index cde5ae9a4340..5df73cbf2b40 100644 --- a/arch/arm/mach-s3c2440/Kconfig +++ b/arch/arm/mach-s3c2440/Kconfig @@ -33,6 +33,7 @@ config MACH_ANUBIS select PM_SIMTEC if PM select HAVE_PATA_PLATFORM select S3C24XX_GPIO_EXTRA64 + select S3C_DEV_USB_HOST help Say Y here if you are using the Simtec Electronics ANUBIS development system @@ -43,6 +44,7 @@ config MACH_OSIRIS select S3C24XX_DCLK select PM_SIMTEC if PM select S3C24XX_GPIO_EXTRA128 + select S3C_DEV_USB_HOST help Say Y here if you are using the Simtec IM2440D20 module, also known as the Osiris. @@ -58,12 +60,14 @@ config ARCH_S3C2440 bool "SMDK2440" select CPU_S3C2440 select MACH_SMDK + select S3C_DEV_USB_HOST help Say Y here if you are using the SMDK2440. config MACH_NEXCODER_2440 bool "NexVision NEXCODER 2440 Light Board" select CPU_S3C2440 + select S3C_DEV_USB_HOST help Say Y here if you are using the Nex Vision NEXCODER 2440 Light Board @@ -76,6 +80,7 @@ config SMDK2440_CPU2440 config MACH_AT2440EVB bool "Avantech AT2440EVB development board" select CPU_S3C2440 + select S3C_DEV_USB_HOST help Say Y here if you are using the AT2440EVB development board diff --git a/arch/arm/mach-s3c6400/Kconfig b/arch/arm/mach-s3c6400/Kconfig index 6da82b5c09ba..f5af212066c3 100644 --- a/arch/arm/mach-s3c6400/Kconfig +++ b/arch/arm/mach-s3c6400/Kconfig @@ -5,4 +5,27 @@ # # Licensed under GPLv2 -# Currently nothing here, this will be added later +# Configuration options for the S3C6410 CPU + +config CPU_S3C6400 + bool + select CPU_S3C6400_INIT + select CPU_S3C6400_CLOCK + help + Enable S3C6400 CPU support + +config S3C6400_SETUP_SDHCI + bool + help + Internal configuration for default SDHCI + setup for S3C6400. + +# S36400 Macchine support + +config MACH_SMDK6400 + bool "SMDK6400" + select CPU_S3C6400 + select S3C_DEV_HSMMC + select S3C6400_SETUP_SDHCI + help + Machine support for the Samsung SMDK6400 diff --git a/arch/arm/mach-s3c6400/Makefile b/arch/arm/mach-s3c6400/Makefile index 8f397db25b87..df1ce4aa03e5 100644 --- a/arch/arm/mach-s3c6400/Makefile +++ b/arch/arm/mach-s3c6400/Makefile @@ -12,4 +12,12 @@ obj- := # Core support for S3C6400 system -obj-n += blank.o +obj-$(CONFIG_CPU_S3C6400) += s3c6400.o + +# setup support + +obj-$(CONFIG_S3C6400_SETUP_SDHCI) += setup-sdhci.o + +# Machine support + +obj-$(CONFIG_MACH_SMDK6400) += mach-smdk6400.o diff --git a/arch/arm/mach-s3c6400/include/mach/map.h b/arch/arm/mach-s3c6400/include/mach/map.h index baf1c0f1ea5a..7a1e5a2455b3 100644 --- a/arch/arm/mach-s3c6400/include/mach/map.h +++ b/arch/arm/mach-s3c6400/include/mach/map.h @@ -39,6 +39,8 @@ #define S3C_VA_UART3 S3C_VA_UARTx(3) #define S3C64XX_PA_FB (0x77100000) +#define S3C64XX_PA_USB_HSOTG (0x7C000000) +#define S3C64XX_PA_WATCHDOG (0x7E004000) #define S3C64XX_PA_SYSCON (0x7E00F000) #define S3C64XX_PA_TIMER (0x7F006000) #define S3C64XX_PA_IIC0 (0x7F004000) @@ -55,6 +57,8 @@ #define S3C64XX_PA_MODEM (0x74108000) #define S3C64XX_VA_MODEM S3C_ADDR(0x00600000) +#define S3C64XX_PA_USBHOST (0x74300000) + /* place VICs close together */ #define S3C_VA_VIC0 (S3C_VA_IRQ + 0x00) #define S3C_VA_VIC1 (S3C_VA_IRQ + 0x10000) @@ -67,5 +71,7 @@ #define S3C_PA_IIC S3C64XX_PA_IIC0 #define S3C_PA_IIC1 S3C64XX_PA_IIC1 #define S3C_PA_FB S3C64XX_PA_FB +#define S3C_PA_USBHOST S3C64XX_PA_USBHOST +#define S3C_PA_USB_HSOTG S3C64XX_PA_USB_HSOTG #endif /* __ASM_ARCH_6400_MAP_H */ diff --git a/arch/arm/mach-s3c6400/include/mach/regs-clock.h b/arch/arm/mach-s3c6400/include/mach/regs-clock.h new file mode 100644 index 000000000000..a6c7f4eb3a1b --- /dev/null +++ b/arch/arm/mach-s3c6400/include/mach/regs-clock.h @@ -0,0 +1,16 @@ +/* linux/arch/arm/mach-s3c6400/include/mach/regs-clock.h + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * S3C64XX - clock register compatibility with s3c24xx + * + * 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 <plat/regs-clock.h> + diff --git a/arch/arm/mach-s3c6400/include/mach/system.h b/arch/arm/mach-s3c6400/include/mach/system.h index 090cfd969bc7..2e58cb7a7147 100644 --- a/arch/arm/mach-s3c6400/include/mach/system.h +++ b/arch/arm/mach-s3c6400/include/mach/system.h @@ -11,6 +11,8 @@ #ifndef __ASM_ARCH_SYSTEM_H #define __ASM_ARCH_SYSTEM_H __FILE__ +#include <plat/watchdog-reset.h> + static void arch_idle(void) { /* nothing here yet */ @@ -18,7 +20,11 @@ static void arch_idle(void) static void arch_reset(char mode, const char *cmd) { - /* nothing here yet */ + if (mode != 's') + arch_wdt_reset(); + + /* if all else fails, or mode was for soft, jump to 0 */ + cpu_reset(0); } #endif /* __ASM_ARCH_IRQ_H */ diff --git a/arch/arm/mach-s3c6400/mach-smdk6400.c b/arch/arm/mach-s3c6400/mach-smdk6400.c new file mode 100644 index 000000000000..ab19285389a7 --- /dev/null +++ b/arch/arm/mach-s3c6400/mach-smdk6400.c @@ -0,0 +1,96 @@ +/* linux/arch/arm/mach-s3c6400/mach-smdk6400.c + * + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * 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/types.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/serial_core.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> +#include <linux/io.h> + +#include <asm/mach-types.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <mach/map.h> + +#include <plat/regs-serial.h> + +#include <plat/s3c6400.h> +#include <plat/clock.h> +#include <plat/devs.h> +#include <plat/cpu.h> +#include <plat/iic.h> + +#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK +#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB +#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE + +static struct s3c2410_uartcfg smdk6400_uartcfgs[] __initdata = { + [0] = { + .hwport = 0, + .flags = 0, + .ucon = 0x3c5, + .ulcon = 0x03, + .ufcon = 0x51, + }, + [1] = { + .hwport = 1, + .flags = 0, + .ucon = 0x3c5, + .ulcon = 0x03, + .ufcon = 0x51, + }, +}; + +static struct map_desc smdk6400_iodesc[] = {}; + +static void __init smdk6400_map_io(void) +{ + s3c64xx_init_io(smdk6400_iodesc, ARRAY_SIZE(smdk6400_iodesc)); + s3c24xx_init_clocks(12000000); + s3c24xx_init_uarts(smdk6400_uartcfgs, ARRAY_SIZE(smdk6400_uartcfgs)); +} + +static struct platform_device *smdk6400_devices[] __initdata = { + &s3c_device_hsmmc1, + &s3c_device_i2c0, +}; + +static struct i2c_board_info i2c_devs[] __initdata = { + { I2C_BOARD_INFO("wm8753", 0x1A), }, + { I2C_BOARD_INFO("24c08", 0x50), }, +}; + +static void __init smdk6400_machine_init(void) +{ + i2c_register_board_info(0, i2c_devs, ARRAY_SIZE(i2c_devs)); + platform_add_devices(smdk6400_devices, ARRAY_SIZE(smdk6400_devices)); +} + +MACHINE_START(SMDK6400, "SMDK6400") + /* Maintainer: Ben Dooks <ben@fluff.org> */ + .phys_io = S3C_PA_UART & 0xfff00000, + .io_pg_offst = (((u32)S3C_VA_UART) >> 18) & 0xfffc, + .boot_params = S3C64XX_PA_SDRAM + 0x100, + + .init_irq = s3c6400_init_irq, + .map_io = smdk6400_map_io, + .init_machine = smdk6400_machine_init, + .timer = &s3c24xx_timer, +MACHINE_END diff --git a/arch/arm/mach-s3c6400/s3c6400.c b/arch/arm/mach-s3c6400/s3c6400.c new file mode 100644 index 000000000000..1ece887d90bb --- /dev/null +++ b/arch/arm/mach-s3c6400/s3c6400.c @@ -0,0 +1,89 @@ +/* linux/arch/arm/mach-s3c6410/cpu.c + * + * Copyright 2009 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * 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/types.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/sysdev.h> +#include <linux/serial_core.h> +#include <linux/platform_device.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <asm/irq.h> + +#include <plat/cpu-freq.h> +#include <plat/regs-serial.h> +#include <plat/regs-clock.h> + +#include <plat/cpu.h> +#include <plat/devs.h> +#include <plat/clock.h> +#include <plat/sdhci.h> +#include <plat/iic-core.h> +#include <plat/s3c6400.h> + +void __init s3c6400_map_io(void) +{ + /* setup SDHCI */ + + s3c6400_default_sdhci0(); + s3c6400_default_sdhci1(); + + /* the i2c devices are directly compatible with s3c2440 */ + s3c_i2c0_setname("s3c2440-i2c"); +} + +void __init s3c6400_init_clocks(int xtal) +{ + printk(KERN_DEBUG "%s: initialising clocks\n", __func__); + s3c24xx_register_baseclocks(xtal); + s3c64xx_register_clocks(); + s3c6400_register_clocks(S3C6400_CLKDIV0_ARM_MASK); + s3c6400_setup_clocks(); +} + +void __init s3c6400_init_irq(void) +{ + /* VIC0 does not have IRQS 5..7, + * VIC1 is fully populated. */ + s3c64xx_init_irq(~0 & ~(0xf << 5), ~0); +} + +struct sysdev_class s3c6400_sysclass = { + .name = "s3c6400-core", +}; + +static struct sys_device s3c6400_sysdev = { + .cls = &s3c6400_sysclass, +}; + +static int __init s3c6400_core_init(void) +{ + return sysdev_class_register(&s3c6400_sysclass); +} + +core_initcall(s3c6400_core_init); + +int __init s3c6400_init(void) +{ + printk("S3C6400: Initialising architecture\n"); + + return sysdev_register(&s3c6400_sysdev); +} diff --git a/arch/arm/mach-s3c6400/setup-sdhci.c b/arch/arm/mach-s3c6400/setup-sdhci.c new file mode 100644 index 000000000000..b93dafbee1f4 --- /dev/null +++ b/arch/arm/mach-s3c6400/setup-sdhci.c @@ -0,0 +1,63 @@ +/* linux/arch/arm/mach-s3c6410/setup-sdhci.c + * + * Copyright 2008 Simtec Electronics + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C6410 - Helper functions for settign up SDHCI device(s) (HSMMC) + * + * 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/types.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <linux/mmc/card.h> +#include <linux/mmc/host.h> + +#include <plat/regs-sdhci.h> +#include <plat/sdhci.h> + +/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */ + +char *s3c6400_hsmmc_clksrcs[4] = { + [0] = "hsmmc", + [1] = "hsmmc", + [2] = "mmc_bus", + /* [3] = "48m", - note not succesfully used yet */ +}; + +void s3c6400_setup_sdhci_cfg_card(struct platform_device *dev, + void __iomem *r, + struct mmc_ios *ios, + struct mmc_card *card) +{ + u32 ctrl2, ctrl3; + + ctrl2 = readl(r + S3C_SDHCI_CONTROL2); + ctrl2 &= S3C_SDHCI_CTRL2_SELBASECLK_MASK; + ctrl2 |= (S3C64XX_SDHCI_CTRL2_ENSTAASYNCCLR | + S3C64XX_SDHCI_CTRL2_ENCMDCNFMSK | + S3C_SDHCI_CTRL2_ENFBCLKRX | + S3C_SDHCI_CTRL2_DFCNT_NONE | + S3C_SDHCI_CTRL2_ENCLKOUTHOLD); + + if (ios->clock < 25 * 1000000) + ctrl3 = (S3C_SDHCI_CTRL3_FCSEL3 | + S3C_SDHCI_CTRL3_FCSEL2 | + S3C_SDHCI_CTRL3_FCSEL1 | + S3C_SDHCI_CTRL3_FCSEL0); + else + ctrl3 = (S3C_SDHCI_CTRL3_FCSEL1 | S3C_SDHCI_CTRL3_FCSEL0); + + printk(KERN_INFO "%s: CTRL 2=%08x, 3=%08x\n", __func__, ctrl2, ctrl3); + writel(ctrl2, r + S3C_SDHCI_CONTROL2); + writel(ctrl3, r + S3C_SDHCI_CONTROL3); +} + diff --git a/arch/arm/mach-s3c6410/Kconfig b/arch/arm/mach-s3c6410/Kconfig index 1d5010070027..e63aac7f4e5a 100644 --- a/arch/arm/mach-s3c6410/Kconfig +++ b/arch/arm/mach-s3c6410/Kconfig @@ -16,9 +16,18 @@ config CPU_S3C6410 config S3C6410_SETUP_SDHCI bool + select S3C64XX_SETUP_SDHCI_GPIO help Internal helper functions for S3C6410 based SDHCI systems +config MACH_ANW6410 + bool "A&W6410" + select CPU_S3C6410 + select S3C_DEV_FB + select S3C64XX_SETUP_FB_24BPP + help + Machine support for the A&W6410 + config MACH_SMDK6410 bool "SMDK6410" select CPU_S3C6410 @@ -26,6 +35,8 @@ config MACH_SMDK6410 select S3C_DEV_HSMMC1 select S3C_DEV_I2C1 select S3C_DEV_FB + select S3C_DEV_USB_HOST + select S3C_DEV_USB_HSOTG select S3C6410_SETUP_SDHCI select S3C64XX_SETUP_I2C1 select S3C64XX_SETUP_FB_24BPP @@ -60,3 +71,29 @@ config SMDK6410_SD_CH1 channels 0 and 1 are the same. endchoice + +config SMDK6410_WM1190_EV1 + bool "Support Wolfson Microelectronics 1190-EV1 PMIC card" + depends on MACH_SMDK6410 + select REGULATOR + select REGULATOR_WM8350 + select MFD_WM8350_I2C + select MFD_WM8350_CONFIG_MODE_0 + select MFD_WM8350_CONFIG_MODE_3 + select MFD_WM8352_CONFIG_MODE_0 + help + The Wolfson Microelectronics 1190-EV1 is a WM835x based PMIC + and audio daughtercard for the Samsung SMDK6410 reference + platform. Enabling this option will build support for this + module into the kernel. The presence of the module will be + detected at runtime so the the resulting kernel can be used + with or without the 1190-EV1 fitted. + +config MACH_NCP + bool "NCP" + select CPU_S3C6410 + select S3C_DEV_I2C1 + select S3C_DEV_HSMMC1 + select S3C64XX_SETUP_I2C1 + help + Machine support for the Samsung NCP diff --git a/arch/arm/mach-s3c6410/Makefile b/arch/arm/mach-s3c6410/Makefile index 2cd4f189036b..6f9deac88612 100644 --- a/arch/arm/mach-s3c6410/Makefile +++ b/arch/arm/mach-s3c6410/Makefile @@ -20,4 +20,8 @@ obj-$(CONFIG_S3C6410_SETUP_SDHCI) += setup-sdhci.o # machine support +obj-$(CONFIG_MACH_ANW6410) += mach-anw6410.o obj-$(CONFIG_MACH_SMDK6410) += mach-smdk6410.o +obj-$(CONFIG_MACH_NCP) += mach-ncp.o + + diff --git a/arch/arm/mach-s3c6410/cpu.c b/arch/arm/mach-s3c6410/cpu.c index 6a73ca6b7a3a..ade904de8895 100644 --- a/arch/arm/mach-s3c6410/cpu.c +++ b/arch/arm/mach-s3c6410/cpu.c @@ -31,6 +31,7 @@ #include <plat/cpu-freq.h> #include <plat/regs-serial.h> +#include <plat/regs-clock.h> #include <plat/cpu.h> #include <plat/devs.h> @@ -68,7 +69,7 @@ void __init s3c6410_init_clocks(int xtal) printk(KERN_DEBUG "%s: initialising clocks\n", __func__); s3c24xx_register_baseclocks(xtal); s3c64xx_register_clocks(); - s3c6400_register_clocks(); + s3c6400_register_clocks(S3C6410_CLKDIV0_ARM_MASK); s3c6400_setup_clocks(); } diff --git a/arch/arm/mach-s3c6410/mach-anw6410.c b/arch/arm/mach-s3c6410/mach-anw6410.c new file mode 100644 index 000000000000..661cca63de25 --- /dev/null +++ b/arch/arm/mach-s3c6410/mach-anw6410.c @@ -0,0 +1,245 @@ +/* linux/arch/arm/mach-s3c6410/mach-anw6410.c + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * Copyright 2009 Kwangwoo Lee + * Kwangwoo Lee <kwangwoo.lee@gmail.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/types.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/serial_core.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/i2c.h> +#include <linux/fb.h> +#include <linux/gpio.h> +#include <linux/delay.h> +#include <linux/dm9000.h> + +#include <video/platform_lcd.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <mach/regs-fb.h> +#include <mach/map.h> + +#include <asm/irq.h> +#include <asm/mach-types.h> + +#include <plat/regs-serial.h> +#include <plat/iic.h> +#include <plat/fb.h> + +#include <plat/s3c6410.h> +#include <plat/clock.h> +#include <plat/devs.h> +#include <plat/cpu.h> +#include <plat/regs-gpio.h> +#include <plat/regs-modem.h> + +/* DM9000 */ +#define ANW6410_PA_DM9000 (0x18000000) + +/* A hardware buffer to control external devices is mapped at 0x30000000. + * It can not be read. So current status must be kept in anw6410_extdev_status. + */ +#define ANW6410_VA_EXTDEV S3C_ADDR(0x02000000) +#define ANW6410_PA_EXTDEV (0x30000000) + +#define ANW6410_EN_DM9000 (1<<11) +#define ANW6410_EN_LCD (1<<14) + +static __u32 anw6410_extdev_status; + +static struct s3c2410_uartcfg anw6410_uartcfgs[] __initdata = { + [0] = { + .hwport = 0, + .flags = 0, + .ucon = 0x3c5, + .ulcon = 0x03, + .ufcon = 0x51, + }, + [1] = { + .hwport = 1, + .flags = 0, + .ucon = 0x3c5, + .ulcon = 0x03, + .ufcon = 0x51, + }, +}; + +/* framebuffer and LCD setup. */ +static void __init anw6410_lcd_mode_set(void) +{ + u32 tmp; + + /* set the LCD type */ + tmp = __raw_readl(S3C64XX_SPCON); + tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK; + tmp |= S3C64XX_SPCON_LCD_SEL_RGB; + __raw_writel(tmp, S3C64XX_SPCON); + + /* remove the LCD bypass */ + tmp = __raw_readl(S3C64XX_MODEM_MIFPCON); + tmp &= ~MIFPCON_LCD_BYPASS; + __raw_writel(tmp, S3C64XX_MODEM_MIFPCON); +} + +/* GPF1 = LCD panel power + * GPF4 = LCD backlight control + */ +static void anw6410_lcd_power_set(struct plat_lcd_data *pd, + unsigned int power) +{ + if (power) { + anw6410_extdev_status |= (ANW6410_EN_LCD << 16); + __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV); + + gpio_direction_output(S3C64XX_GPF(1), 1); + gpio_direction_output(S3C64XX_GPF(4), 1); + } else { + anw6410_extdev_status &= ~(ANW6410_EN_LCD << 16); + __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV); + + gpio_direction_output(S3C64XX_GPF(1), 0); + gpio_direction_output(S3C64XX_GPF(4), 0); + } +} + +static struct plat_lcd_data anw6410_lcd_power_data = { + .set_power = anw6410_lcd_power_set, +}; + +static struct platform_device anw6410_lcd_powerdev = { + .name = "platform-lcd", + .dev.parent = &s3c_device_fb.dev, + .dev.platform_data = &anw6410_lcd_power_data, +}; + +static struct s3c_fb_pd_win anw6410_fb_win0 = { + /* this is to ensure we use win0 */ + .win_mode = { + .pixclock = 41094, + .left_margin = 8, + .right_margin = 13, + .upper_margin = 7, + .lower_margin = 5, + .hsync_len = 3, + .vsync_len = 1, + .xres = 800, + .yres = 480, + }, + .max_bpp = 32, + .default_bpp = 16, +}; + +/* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */ +static struct s3c_fb_platdata anw6410_lcd_pdata __initdata = { + .setup_gpio = s3c64xx_fb_gpio_setup_24bpp, + .win[0] = &anw6410_fb_win0, + .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB, + .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC, +}; + +/* DM9000AEP 10/100 ethernet controller */ +static void __init anw6410_dm9000_enable(void) +{ + anw6410_extdev_status |= (ANW6410_EN_DM9000 << 16); + __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV); +} + +static struct resource anw6410_dm9000_resource[] = { + [0] = { + .start = ANW6410_PA_DM9000, + .end = ANW6410_PA_DM9000 + 3, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = ANW6410_PA_DM9000 + 4, + .end = ANW6410_PA_DM9000 + 4 + 500, + .flags = IORESOURCE_MEM, + }, + [2] = { + .start = IRQ_EINT(15), + .end = IRQ_EINT(15), + .flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH, + }, +}; + +static struct dm9000_plat_data anw6410_dm9000_pdata = { + .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM), + /* dev_addr can be set to provide hwaddr. */ +}; + +static struct platform_device anw6410_device_eth = { + .name = "dm9000", + .id = -1, + .num_resources = ARRAY_SIZE(anw6410_dm9000_resource), + .resource = anw6410_dm9000_resource, + .dev = { + .platform_data = &anw6410_dm9000_pdata, + }, +}; + +static struct map_desc anw6410_iodesc[] __initdata = { + { + .virtual = (unsigned long)ANW6410_VA_EXTDEV, + .pfn = __phys_to_pfn(ANW6410_PA_EXTDEV), + .length = SZ_64K, + .type = MT_DEVICE, + }, +}; + +static struct platform_device *anw6410_devices[] __initdata = { + &s3c_device_fb, + &anw6410_lcd_powerdev, + &anw6410_device_eth, +}; + +static void __init anw6410_map_io(void) +{ + s3c64xx_init_io(anw6410_iodesc, ARRAY_SIZE(anw6410_iodesc)); + s3c24xx_init_clocks(12000000); + s3c24xx_init_uarts(anw6410_uartcfgs, ARRAY_SIZE(anw6410_uartcfgs)); + + anw6410_lcd_mode_set(); +} + +static void __init anw6410_machine_init(void) +{ + s3c_fb_set_platdata(&anw6410_lcd_pdata); + + gpio_request(S3C64XX_GPF(1), "panel power"); + gpio_request(S3C64XX_GPF(4), "LCD backlight"); + + anw6410_dm9000_enable(); + + platform_add_devices(anw6410_devices, ARRAY_SIZE(anw6410_devices)); +} + +MACHINE_START(ANW6410, "A&W6410") + /* Maintainer: Kwangwoo Lee <kwangwoo.lee@gmail.com> */ + .phys_io = S3C_PA_UART & 0xfff00000, + .io_pg_offst = (((u32)S3C_VA_UART) >> 18) & 0xfffc, + .boot_params = S3C64XX_PA_SDRAM + 0x100, + + .init_irq = s3c6410_init_irq, + .map_io = anw6410_map_io, + .init_machine = anw6410_machine_init, + .timer = &s3c24xx_timer, +MACHINE_END diff --git a/arch/arm/mach-s3c6410/mach-ncp.c b/arch/arm/mach-s3c6410/mach-ncp.c new file mode 100644 index 000000000000..6030636f8548 --- /dev/null +++ b/arch/arm/mach-s3c6410/mach-ncp.c @@ -0,0 +1,107 @@ +/* + * linux/arch/arm/mach-s3c6410/mach-ncp.c + * + * Copyright (C) 2008-2009 Samsung Electronics + * + * 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/types.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/serial_core.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/i2c.h> +#include <linux/fb.h> +#include <linux/gpio.h> +#include <linux/delay.h> + +#include <video/platform_lcd.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <mach/regs-fb.h> +#include <mach/map.h> + +#include <asm/irq.h> +#include <asm/mach-types.h> + +#include <plat/regs-serial.h> +#include <plat/iic.h> +#include <plat/fb.h> + +#include <plat/s3c6410.h> +#include <plat/clock.h> +#include <plat/devs.h> +#include <plat/cpu.h> + +#define UCON S3C2410_UCON_DEFAULT +#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE +#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE + +static struct s3c2410_uartcfg ncp_uartcfgs[] __initdata = { + /* REVISIT: NCP uses only serial 1, 2 */ + [0] = { + .hwport = 0, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, + }, + [1] = { + .hwport = 1, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, + }, + [2] = { + .hwport = 2, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, + }, +}; + +static struct platform_device *ncp_devices[] __initdata = { + &s3c_device_hsmmc1, + &s3c_device_i2c0, +}; + +struct map_desc ncp_iodesc[] = {}; + +static void __init ncp_map_io(void) +{ + s3c64xx_init_io(ncp_iodesc, ARRAY_SIZE(ncp_iodesc)); + s3c24xx_init_clocks(12000000); + s3c24xx_init_uarts(ncp_uartcfgs, ARRAY_SIZE(ncp_uartcfgs)); +} + +static void __init ncp_machine_init(void) +{ + s3c_i2c0_set_platdata(NULL); + + platform_add_devices(ncp_devices, ARRAY_SIZE(ncp_devices)); +} + +MACHINE_START(NCP, "NCP") + /* Maintainer: Samsung Electronics */ + .phys_io = S3C_PA_UART & 0xfff00000, + .io_pg_offst = (((u32)S3C_VA_UART) >> 18) & 0xfffc, + .boot_params = S3C64XX_PA_SDRAM + 0x100, + .init_irq = s3c6410_init_irq, + .map_io = ncp_map_io, + .init_machine = ncp_machine_init, + .timer = &s3c24xx_timer, +MACHINE_END diff --git a/arch/arm/mach-s3c6410/mach-smdk6410.c b/arch/arm/mach-s3c6410/mach-smdk6410.c index 7f473e47e4f1..bc9a7dea567f 100644 --- a/arch/arm/mach-s3c6410/mach-smdk6410.c +++ b/arch/arm/mach-s3c6410/mach-smdk6410.c @@ -24,6 +24,12 @@ #include <linux/fb.h> #include <linux/gpio.h> #include <linux/delay.h> +#include <linux/smsc911x.h> + +#ifdef CONFIG_SMDK6410_WM1190_EV1 +#include <linux/mfd/wm8350/core.h> +#include <linux/mfd/wm8350/pmic.h> +#endif #include <video/platform_lcd.h> @@ -39,8 +45,12 @@ #include <asm/mach-types.h> #include <plat/regs-serial.h> +#include <plat/regs-modem.h> +#include <plat/regs-gpio.h> +#include <plat/regs-sys.h> #include <plat/iic.h> #include <plat/fb.h> +#include <plat/gpio-cfg.h> #include <plat/s3c6410.h> #include <plat/clock.h> @@ -129,6 +139,37 @@ static struct s3c_fb_platdata smdk6410_lcd_pdata __initdata = { .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC, }; +static struct resource smdk6410_smsc911x_resources[] = { + [0] = { + .start = 0x18000000, + .end = 0x18000000 + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = S3C_EINT(10), + .end = S3C_EINT(10), + .flags = IORESOURCE_IRQ | IRQ_TYPE_LEVEL_LOW, + }, +}; + +static struct smsc911x_platform_config smdk6410_smsc911x_pdata = { + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, + .flags = SMSC911X_USE_32BIT | SMSC911X_FORCE_INTERNAL_PHY, + .phy_interface = PHY_INTERFACE_MODE_MII, +}; + + +static struct platform_device smdk6410_smsc911x = { + .name = "smsc911x", + .id = -1, + .num_resources = ARRAY_SIZE(smdk6410_smsc911x_resources), + .resource = &smdk6410_smsc911x_resources[0], + .dev = { + .platform_data = &smdk6410_smsc911x_pdata, + }, +}; + static struct map_desc smdk6410_iodesc[] = {}; static struct platform_device *smdk6410_devices[] __initdata = { @@ -141,12 +182,155 @@ static struct platform_device *smdk6410_devices[] __initdata = { &s3c_device_i2c0, &s3c_device_i2c1, &s3c_device_fb, + &s3c_device_usb, + &s3c_device_usb_hsotg, &smdk6410_lcd_powerdev, + + &smdk6410_smsc911x, +}; + +#ifdef CONFIG_SMDK6410_WM1190_EV1 +/* S3C64xx internal logic & PLL */ +static struct regulator_init_data wm8350_dcdc1_data = { + .constraints = { + .name = "PVDD_INT/PVDD_PLL", + .min_uV = 1200000, + .max_uV = 1200000, + .always_on = 1, + .apply_uV = 1, + }, +}; + +/* Memory */ +static struct regulator_init_data wm8350_dcdc3_data = { + .constraints = { + .name = "PVDD_MEM", + .min_uV = 1800000, + .max_uV = 1800000, + .always_on = 1, + .state_mem = { + .uV = 1800000, + .mode = REGULATOR_MODE_NORMAL, + .enabled = 1, + }, + .initial_state = PM_SUSPEND_MEM, + }, +}; + +/* USB, EXT, PCM, ADC/DAC, USB, MMC */ +static struct regulator_init_data wm8350_dcdc4_data = { + .constraints = { + .name = "PVDD_HI/PVDD_EXT/PVDD_SYS/PVCCM2MTV", + .min_uV = 3000000, + .max_uV = 3000000, + .always_on = 1, + }, +}; + +/* ARM core */ +static struct regulator_consumer_supply dcdc6_consumers[] = { + { + .supply = "vddarm", + } +}; + +static struct regulator_init_data wm8350_dcdc6_data = { + .constraints = { + .name = "PVDD_ARM", + .min_uV = 1000000, + .max_uV = 1300000, + .always_on = 1, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + }, + .num_consumer_supplies = ARRAY_SIZE(dcdc6_consumers), + .consumer_supplies = dcdc6_consumers, }; +/* Alive */ +static struct regulator_init_data wm8350_ldo1_data = { + .constraints = { + .name = "PVDD_ALIVE", + .min_uV = 1200000, + .max_uV = 1200000, + .always_on = 1, + .apply_uV = 1, + }, +}; + +/* OTG */ +static struct regulator_init_data wm8350_ldo2_data = { + .constraints = { + .name = "PVDD_OTG", + .min_uV = 3300000, + .max_uV = 3300000, + .always_on = 1, + }, +}; + +/* LCD */ +static struct regulator_init_data wm8350_ldo3_data = { + .constraints = { + .name = "PVDD_LCD", + .min_uV = 3000000, + .max_uV = 3000000, + .always_on = 1, + }, +}; + +/* OTGi/1190-EV1 HPVDD & AVDD */ +static struct regulator_init_data wm8350_ldo4_data = { + .constraints = { + .name = "PVDD_OTGI/HPVDD/AVDD", + .min_uV = 1200000, + .max_uV = 1200000, + .apply_uV = 1, + .always_on = 1, + }, +}; + +static struct { + int regulator; + struct regulator_init_data *initdata; +} wm1190_regulators[] = { + { WM8350_DCDC_1, &wm8350_dcdc1_data }, + { WM8350_DCDC_3, &wm8350_dcdc3_data }, + { WM8350_DCDC_4, &wm8350_dcdc4_data }, + { WM8350_DCDC_6, &wm8350_dcdc6_data }, + { WM8350_LDO_1, &wm8350_ldo1_data }, + { WM8350_LDO_2, &wm8350_ldo2_data }, + { WM8350_LDO_3, &wm8350_ldo3_data }, + { WM8350_LDO_4, &wm8350_ldo4_data }, +}; + +static int __init smdk6410_wm8350_init(struct wm8350 *wm8350) +{ + int i; + + /* Instantiate the regulators */ + for (i = 0; i < ARRAY_SIZE(wm1190_regulators); i++) + wm8350_register_regulator(wm8350, + wm1190_regulators[i].regulator, + wm1190_regulators[i].initdata); + + return 0; +} + +static struct wm8350_platform_data __initdata smdk6410_wm8350_pdata = { + .init = smdk6410_wm8350_init, + .irq_high = 1, +}; +#endif + static struct i2c_board_info i2c_devs0[] __initdata = { { I2C_BOARD_INFO("24c08", 0x50), }, { I2C_BOARD_INFO("wm8580", 0x1b), }, + +#ifdef CONFIG_SMDK6410_WM1190_EV1 + { I2C_BOARD_INFO("wm8350", 0x1a), + .platform_data = &smdk6410_wm8350_pdata, + .irq = S3C_EINT(12), + }, +#endif }; static struct i2c_board_info i2c_devs1[] __initdata = { @@ -155,9 +339,23 @@ static struct i2c_board_info i2c_devs1[] __initdata = { static void __init smdk6410_map_io(void) { + u32 tmp; + s3c64xx_init_io(smdk6410_iodesc, ARRAY_SIZE(smdk6410_iodesc)); s3c24xx_init_clocks(12000000); s3c24xx_init_uarts(smdk6410_uartcfgs, ARRAY_SIZE(smdk6410_uartcfgs)); + + /* set the LCD type */ + + tmp = __raw_readl(S3C64XX_SPCON); + tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK; + tmp |= S3C64XX_SPCON_LCD_SEL_RGB; + __raw_writel(tmp, S3C64XX_SPCON); + + /* remove the lcd bypass */ + tmp = __raw_readl(S3C64XX_MODEM_MIFPCON); + tmp &= ~MIFPCON_LCD_BYPASS; + __raw_writel(tmp, S3C64XX_MODEM_MIFPCON); } static void __init smdk6410_machine_init(void) diff --git a/arch/arm/mach-s3c6410/setup-sdhci.c b/arch/arm/mach-s3c6410/setup-sdhci.c index 0b5788bd5985..20666f3bd478 100644 --- a/arch/arm/mach-s3c6410/setup-sdhci.c +++ b/arch/arm/mach-s3c6410/setup-sdhci.c @@ -21,8 +21,6 @@ #include <linux/mmc/card.h> #include <linux/mmc/host.h> -#include <mach/gpio.h> -#include <plat/gpio-cfg.h> #include <plat/regs-sdhci.h> #include <plat/sdhci.h> @@ -35,22 +33,6 @@ char *s3c6410_hsmmc_clksrcs[4] = { /* [3] = "48m", - note not succesfully used yet */ }; -void s3c6410_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) -{ - unsigned int gpio; - unsigned int end; - - end = S3C64XX_GPG(2 + width); - - /* Set all the necessary GPG pins to special-function 0 */ - for (gpio = S3C64XX_GPG(0); gpio < end; gpio++) { - s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); - s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); - } - - s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); - s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2)); -} void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev, void __iomem *r, @@ -84,19 +66,3 @@ void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev, writel(ctrl3, r + S3C_SDHCI_CONTROL3); } -void s3c6410_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) -{ - unsigned int gpio; - unsigned int end; - - end = S3C64XX_GPH(2 + width); - - /* Set all the necessary GPG pins to special-function 0 */ - for (gpio = S3C64XX_GPH(0); gpio < end; gpio++) { - s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); - s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); - } - - s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); - s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3)); -} diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index 1f929c391af7..c39c788e2731 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -116,7 +116,7 @@ void __init versatile_init_irq(void) { unsigned int i; - vic_init(VA_VIC_BASE, IRQ_VIC_START, ~0); + vic_init(VA_VIC_BASE, IRQ_VIC_START, ~0, 0); set_irq_chained_handler(IRQ_VICSOURCE31, sic_handle_irq); diff --git a/arch/arm/plat-s3c/Kconfig b/arch/arm/plat-s3c/Kconfig index d4fc89fc5f45..935c7558469b 100644 --- a/arch/arm/plat-s3c/Kconfig +++ b/arch/arm/plat-s3c/Kconfig @@ -71,6 +71,15 @@ config S3C2410_PM_DEBUG Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt> for more information. +config S3C_PM_DEBUG_LED_SMDK + bool "SMDK LED suspend/resume debugging" + depends on PM && (MACH_SMDK6410) + help + Say Y here to enable the use of the SMDK LEDs on the baseboard + for debugging of the state of the suspend and resume process. + + Note, this currently only works for S3C64XX based SMDK boards. + config S3C2410_PM_CHECK bool "S3C2410 PM Suspend Memory CRC" depends on PM && CRC32 @@ -179,4 +188,14 @@ config S3C_DEV_FB help Compile in platform device definition for framebuffer +config S3C_DEV_USB_HOST + bool + help + Compile in platform device definition for USB host. + +config S3C_DEV_USB_HSOTG + bool + help + Compile in platform device definition for USB high-speed OtG + endif diff --git a/arch/arm/plat-s3c/Makefile b/arch/arm/plat-s3c/Makefile index e8b23fc8fba2..610651455a78 100644 --- a/arch/arm/plat-s3c/Makefile +++ b/arch/arm/plat-s3c/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_S3C_DMA) += dma.o # PM support obj-$(CONFIG_PM) += pm.o +obj-$(CONFIG_PM) += pm-gpio.o obj-$(CONFIG_S3C2410_PM_CHECK) += pm-check.o # devices @@ -34,3 +35,5 @@ obj-$(CONFIG_S3C_DEV_HSMMC1) += dev-hsmmc1.o obj-y += dev-i2c0.o obj-$(CONFIG_S3C_DEV_I2C1) += dev-i2c1.o obj-$(CONFIG_S3C_DEV_FB) += dev-fb.o +obj-$(CONFIG_S3C_DEV_USB_HOST) += dev-usb.o +obj-$(CONFIG_S3C_DEV_USB_HSOTG) += dev-usb-hsotg.o diff --git a/arch/arm/plat-s3c/dev-usb-hsotg.c b/arch/arm/plat-s3c/dev-usb-hsotg.c new file mode 100644 index 000000000000..e2f604b51c86 --- /dev/null +++ b/arch/arm/plat-s3c/dev-usb-hsotg.c @@ -0,0 +1,41 @@ +/* linux/arch/arm/plat-s3c/dev-usb-hsotg.c + * + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C series device definition for USB high-speed UDC/OtG block + * + * 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/string.h> +#include <linux/platform_device.h> + +#include <mach/irqs.h> +#include <mach/map.h> + +#include <plat/devs.h> + +static struct resource s3c_usb_hsotg_resources[] = { + [0] = { + .start = S3C_PA_USB_HSOTG, + .end = S3C_PA_USB_HSOTG + 0x10000 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_OTG, + .end = IRQ_OTG, + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device s3c_device_usb_hsotg = { + .name = "s3c-hsotg", + .id = -1, + .num_resources = ARRAY_SIZE(s3c_usb_hsotg_resources), + .resource = s3c_usb_hsotg_resources, +}; diff --git a/arch/arm/plat-s3c/dev-usb.c b/arch/arm/plat-s3c/dev-usb.c new file mode 100644 index 000000000000..2ee85abed6d9 --- /dev/null +++ b/arch/arm/plat-s3c/dev-usb.c @@ -0,0 +1,50 @@ +/* linux/arch/arm/plat-s3c/dev-usb.c + * + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C series device definition for USB host + * + * 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/string.h> +#include <linux/platform_device.h> + +#include <mach/irqs.h> +#include <mach/map.h> + +#include <plat/devs.h> + + +static struct resource s3c_usb_resource[] = { + [0] = { + .start = S3C_PA_USBHOST, + .end = S3C_PA_USBHOST + 0x100 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_USBH, + .end = IRQ_USBH, + .flags = IORESOURCE_IRQ, + } +}; + +static u64 s3c_device_usb_dmamask = 0xffffffffUL; + +struct platform_device s3c_device_usb = { + .name = "s3c2410-ohci", + .id = -1, + .num_resources = ARRAY_SIZE(s3c_usb_resource), + .resource = s3c_usb_resource, + .dev = { + .dma_mask = &s3c_device_usb_dmamask, + .coherent_dma_mask = 0xffffffffUL + } +}; + +EXPORT_SYMBOL(s3c_device_usb); diff --git a/arch/arm/plat-s3c/gpio.c b/arch/arm/plat-s3c/gpio.c index d71dd6d9ce5c..260fdc6ad685 100644 --- a/arch/arm/plat-s3c/gpio.c +++ b/arch/arm/plat-s3c/gpio.c @@ -16,7 +16,7 @@ #include <linux/io.h> #include <linux/gpio.h> -#include <plat/gpio-core.h> +#include <mach/gpio-core.h> #ifdef CONFIG_S3C_GPIO_TRACK struct s3c_gpio_chip *s3c_gpios[S3C_GPIO_END]; @@ -140,6 +140,15 @@ __init void s3c_gpiolib_add(struct s3c_gpio_chip *chip) if (!gc->get) gc->get = s3c_gpiolib_get; +#ifdef CONFIG_PM + if (chip->pm != NULL) { + if (!chip->pm->save || !chip->pm->resume) + printk(KERN_ERR "gpio: %s has missing PM functions\n", + gc->label); + } else + printk(KERN_ERR "gpio: %s has no PM function\n", gc->label); +#endif + /* gpiochip_add() prints own failure message on error. */ ret = gpiochip_add(gc); if (ret >= 0) diff --git a/arch/arm/plat-s3c/include/plat/adc.h b/arch/arm/plat-s3c/include/plat/adc.h index 43df2a404b0b..d847bd476b6c 100644 --- a/arch/arm/plat-s3c/include/plat/adc.h +++ b/arch/arm/plat-s3c/include/plat/adc.h @@ -19,10 +19,12 @@ struct s3c_adc_client; extern int s3c_adc_start(struct s3c_adc_client *client, unsigned int channel, unsigned int nr_samples); -extern struct s3c_adc_client *s3c_adc_register(struct platform_device *pdev, - void (*select)(unsigned selected), - void (*conv)(unsigned d0, unsigned d1), - unsigned int is_ts); +extern struct s3c_adc_client * + s3c_adc_register(struct platform_device *pdev, + void (*select)(unsigned selected), + void (*conv)(unsigned d0, unsigned d1, + unsigned *samples_left), + unsigned int is_ts); extern void s3c_adc_release(struct s3c_adc_client *client); diff --git a/arch/arm/plat-s3c/include/plat/clock.h b/arch/arm/plat-s3c/include/plat/clock.h index a10622eed43a..d86af84b5b8c 100644 --- a/arch/arm/plat-s3c/include/plat/clock.h +++ b/arch/arm/plat-s3c/include/plat/clock.h @@ -50,6 +50,7 @@ extern struct clk clk_xtal; extern struct clk clk_ext; /* S3C64XX specific clocks */ +extern struct clk clk_h2; extern struct clk clk_27m; extern struct clk clk_48m; diff --git a/arch/arm/plat-s3c/include/plat/cpu.h b/arch/arm/plat-s3c/include/plat/cpu.h index e62ae0fcfe56..be541cbba070 100644 --- a/arch/arm/plat-s3c/include/plat/cpu.h +++ b/arch/arm/plat-s3c/include/plat/cpu.h @@ -69,3 +69,6 @@ extern struct sysdev_class s3c2412_sysclass; extern struct sysdev_class s3c2440_sysclass; extern struct sysdev_class s3c2442_sysclass; extern struct sysdev_class s3c2443_sysclass; +extern struct sysdev_class s3c6410_sysclass; +extern struct sysdev_class s3c64xx_sysclass; + diff --git a/arch/arm/plat-s3c/include/plat/devs.h b/arch/arm/plat-s3c/include/plat/devs.h index 26f0cec3ac04..a0b6768fddcf 100644 --- a/arch/arm/plat-s3c/include/plat/devs.h +++ b/arch/arm/plat-s3c/include/plat/devs.h @@ -45,6 +45,7 @@ extern struct platform_device s3c_device_spi1; extern struct platform_device s3c_device_nand; extern struct platform_device s3c_device_usbgadget; +extern struct platform_device s3c_device_usb_hsotg; /* s3c2440 specific devices */ diff --git a/arch/arm/plat-s3c/include/plat/gpio-core.h b/arch/arm/plat-s3c/include/plat/gpio-core.h index 2fc60a580ac8..32af612767aa 100644 --- a/arch/arm/plat-s3c/include/plat/gpio-core.h +++ b/arch/arm/plat-s3c/include/plat/gpio-core.h @@ -20,6 +20,18 @@ * specific code. */ +struct s3c_gpio_chip; + +/** + * struct s3c_gpio_pm - power management (suspend/resume) information + * @save: Routine to save the state of the GPIO block + * @resume: Routine to resume the GPIO block. + */ +struct s3c_gpio_pm { + void (*save)(struct s3c_gpio_chip *chip); + void (*resume)(struct s3c_gpio_chip *chip); +}; + struct s3c_gpio_cfg; /** @@ -27,6 +39,7 @@ struct s3c_gpio_cfg; * @chip: The chip structure to be exported via gpiolib. * @base: The base pointer to the gpio configuration registers. * @config: special function and pull-resistor control information. + * @pm_save: Save information for suspend/resume support. * * This wrapper provides the necessary information for the Samsung * specific gpios being registered with gpiolib. @@ -34,7 +47,11 @@ struct s3c_gpio_cfg; struct s3c_gpio_chip { struct gpio_chip chip; struct s3c_gpio_cfg *config; + struct s3c_gpio_pm *pm; void __iomem *base; +#ifdef CONFIG_PM + u32 pm_save[4]; +#endif }; static inline struct s3c_gpio_chip *to_s3c_gpio(struct gpio_chip *gpc) @@ -75,3 +92,16 @@ static inline struct s3c_gpio_chip *s3c_gpiolib_getchip(unsigned int chip) static inline void s3c_gpiolib_track(struct s3c_gpio_chip *chip) { } #endif + +#ifdef CONFIG_PM +extern struct s3c_gpio_pm s3c_gpio_pm_1bit; +extern struct s3c_gpio_pm s3c_gpio_pm_2bit; +extern struct s3c_gpio_pm s3c_gpio_pm_4bit; +#define __gpio_pm(x) x +#else +#define s3c_gpio_pm_1bit NULL +#define s3c_gpio_pm_2bit NULL +#define s3c_gpio_pm_4bit NULL +#define __gpio_pm(x) NULL + +#endif /* CONFIG_PM */ diff --git a/arch/arm/plat-s3c/include/plat/pm.h b/arch/arm/plat-s3c/include/plat/pm.h index 3779775133a9..7a797192fcf3 100644 --- a/arch/arm/plat-s3c/include/plat/pm.h +++ b/arch/arm/plat-s3c/include/plat/pm.h @@ -44,6 +44,8 @@ extern void (*pm_cpu_sleep)(void); extern unsigned long s3c_pm_flags; +extern unsigned char pm_uart_udivslot; /* true to save UART UDIVSLOT */ + /* from sleep.S */ extern int s3c_cpu_save(unsigned long *saveblk); @@ -88,6 +90,7 @@ struct pm_uart_save { u32 ufcon; u32 umcon; u32 ubrdiv; + u32 udivslot; }; /* helper functions to save/restore lists of registers. */ @@ -124,6 +127,18 @@ extern void s3c_pm_dbg(const char *msg, ...); #define S3C_PMDBG(fmt...) printk(KERN_DEBUG fmt) #endif +#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK +/** + * s3c_pm_debug_smdkled() - Debug PM suspend/resume via SMDK Board LEDs + * @set: set bits for the state of the LEDs + * @clear: clear bits for the state of the LEDs. + */ +extern void s3c_pm_debug_smdkled(u32 set, u32 clear); + +#else +static inline void s3c_pm_debug_smdkled(u32 set, u32 clear) { } +#endif /* CONFIG_S3C_PM_DEBUG_LED_SMDK */ + /* suspend memory checking */ #ifdef CONFIG_S3C2410_PM_CHECK diff --git a/arch/arm/plat-s3c/include/plat/regs-serial.h b/arch/arm/plat-s3c/include/plat/regs-serial.h index 487d7d2a7e1d..66af75a5cdd1 100644 --- a/arch/arm/plat-s3c/include/plat/regs-serial.h +++ b/arch/arm/plat-s3c/include/plat/regs-serial.h @@ -189,6 +189,11 @@ #define S3C2443_DIVSLOT (0x2C) +/* S3C64XX interrupt registers. */ +#define S3C64XX_UINTP 0x30 +#define S3C64XX_UINTSP 0x34 +#define S3C64XX_UINTM 0x38 + #ifndef __ASSEMBLY__ /* struct s3c24xx_uart_clksrc diff --git a/arch/arm/plat-s3c/include/plat/sdhci.h b/arch/arm/plat-s3c/include/plat/sdhci.h index c4ca3920ca4b..f615308ccdfb 100644 --- a/arch/arm/plat-s3c/include/plat/sdhci.h +++ b/arch/arm/plat-s3c/include/plat/sdhci.h @@ -67,12 +67,52 @@ extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata; /* Helper function availablity */ +extern void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *, int w); +extern void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *, int w); + +/* S3C6400 SDHCI setup */ + +#ifdef CONFIG_S3C6400_SETUP_SDHCI +extern char *s3c6400_hsmmc_clksrcs[4]; + +#ifdef CONFIG_S3C_DEV_HSMMC +extern void s3c6400_setup_sdhci_cfg_card(struct platform_device *dev, + void __iomem *r, + struct mmc_ios *ios, + struct mmc_card *card); + +static inline void s3c6400_default_sdhci0(void) +{ + s3c_hsmmc0_def_platdata.clocks = s3c6400_hsmmc_clksrcs; + s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio; + s3c_hsmmc0_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card; +} + +#else +static inline void s3c6400_default_sdhci0(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC */ + +#ifdef CONFIG_S3C_DEV_HSMMC1 +static inline void s3c6400_default_sdhci1(void) +{ + s3c_hsmmc1_def_platdata.clocks = s3c6400_hsmmc_clksrcs; + s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio; + s3c_hsmmc1_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card; +} +#else +static inline void s3c6400_default_sdhci1(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC1 */ + +#else +static inline void s3c6400_default_sdhci0(void) { } +static inline void s3c6400_default_sdhci1(void) { } +#endif /* CONFIG_S3C6400_SETUP_SDHCI */ + +/* S3C6410 SDHCI setup */ + #ifdef CONFIG_S3C6410_SETUP_SDHCI extern char *s3c6410_hsmmc_clksrcs[4]; -extern void s3c6410_setup_sdhci0_cfg_gpio(struct platform_device *, int w); -extern void s3c6410_setup_sdhci1_cfg_gpio(struct platform_device *, int w); - extern void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev, void __iomem *r, struct mmc_ios *ios, @@ -82,7 +122,7 @@ extern void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev, static inline void s3c6410_default_sdhci0(void) { s3c_hsmmc0_def_platdata.clocks = s3c6410_hsmmc_clksrcs; - s3c_hsmmc0_def_platdata.cfg_gpio = s3c6410_setup_sdhci0_cfg_gpio; + s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio; s3c_hsmmc0_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card; } #else @@ -93,7 +133,7 @@ static inline void s3c6410_default_sdhci0(void) { } static inline void s3c6410_default_sdhci1(void) { s3c_hsmmc1_def_platdata.clocks = s3c6410_hsmmc_clksrcs; - s3c_hsmmc1_def_platdata.cfg_gpio = s3c6410_setup_sdhci1_cfg_gpio; + s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio; s3c_hsmmc1_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card; } #else diff --git a/arch/arm/plat-s3c/include/plat/udc-hs.h b/arch/arm/plat-s3c/include/plat/udc-hs.h new file mode 100644 index 000000000000..dd04db043109 --- /dev/null +++ b/arch/arm/plat-s3c/include/plat/udc-hs.h @@ -0,0 +1,29 @@ +/* arch/arm/plat-s3c/include/plat/udc-hs.h + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C USB2.0 High-speed / OtG platform information + * + * 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. +*/ + +enum s3c_hostg_dmamode { + S3C_HSOTG_DMA_NONE, /* do not use DMA at-all */ + S3C_HSOTG_DMA_ONLY, /* always use DMA */ + S3C_HSOTG_DMA_DRV, /* DMA is chosen by driver */ +}; + +/** + * struct s3c_hsotg_plat - platform data for high-speed otg/udc + * @dma: Whether to use DMA or not. + * @is_osc: The clock source is an oscillator, not a crystal + */ +struct s3c_hsotg_plat { + enum s3c_hostg_dmamode dma; + unsigned int is_osc : 1; +}; diff --git a/arch/arm/plat-s3c/include/plat/watchdog-reset.h b/arch/arm/plat-s3c/include/plat/watchdog-reset.h new file mode 100644 index 000000000000..54b762acb5a0 --- /dev/null +++ b/arch/arm/plat-s3c/include/plat/watchdog-reset.h @@ -0,0 +1,49 @@ +/* arch/arm/plat-s3c/include/plat/watchdog-reset.h + * + * Copyright (c) 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * S3C2410 - System define for arch_reset() function + * + * 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 <plat/regs-watchdog.h> +#include <mach/map.h> + +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/io.h> + +static inline void arch_wdt_reset(void) +{ + struct clk *wdtclk; + + printk("arch_reset: attempting watchdog reset\n"); + + __raw_writel(0, S3C2410_WTCON); /* disable watchdog, to be safe */ + + wdtclk = clk_get(NULL, "watchdog"); + if (!IS_ERR(wdtclk)) { + clk_enable(wdtclk); + } else + printk(KERN_WARNING "%s: warning: cannot get watchdog clock\n", __func__); + + /* put initial values into count and data */ + __raw_writel(0x80, S3C2410_WTCNT); + __raw_writel(0x80, S3C2410_WTDAT); + + /* set the watchdog to go and reset... */ + __raw_writel(S3C2410_WTCON_ENABLE|S3C2410_WTCON_DIV16|S3C2410_WTCON_RSTEN | + S3C2410_WTCON_PRESCALE(0x20), S3C2410_WTCON); + + /* wait for reset to assert... */ + mdelay(500); + + printk(KERN_ERR "Watchdog reset failed to assert reset\n"); + + /* delay to allow the serial port to show the message */ + mdelay(50); +} diff --git a/arch/arm/plat-s3c/pm-gpio.c b/arch/arm/plat-s3c/pm-gpio.c new file mode 100644 index 000000000000..cfd326a8b693 --- /dev/null +++ b/arch/arm/plat-s3c/pm-gpio.c @@ -0,0 +1,380 @@ + +/* linux/arch/arm/plat-s3c/pm-gpio.c + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C series GPIO PM code + * + * 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/sysdev.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/gpio.h> + +#include <mach/gpio-core.h> +#include <plat/pm.h> + +/* PM GPIO helpers */ + +#define OFFS_CON (0x00) +#define OFFS_DAT (0x04) +#define OFFS_UP (0x08) + +static void s3c_gpio_pm_1bit_save(struct s3c_gpio_chip *chip) +{ + chip->pm_save[0] = __raw_readl(chip->base + OFFS_CON); + chip->pm_save[1] = __raw_readl(chip->base + OFFS_DAT); +} + +static void s3c_gpio_pm_1bit_resume(struct s3c_gpio_chip *chip) +{ + void __iomem *base = chip->base; + u32 old_gpcon = __raw_readl(base + OFFS_CON); + u32 old_gpdat = __raw_readl(base + OFFS_DAT); + u32 gps_gpcon = chip->pm_save[0]; + u32 gps_gpdat = chip->pm_save[1]; + u32 gpcon; + + /* GPACON only has one bit per control / data and no PULLUPs. + * GPACON[x] = 0 => Output, 1 => SFN */ + + /* first set all SFN bits to SFN */ + + gpcon = old_gpcon | gps_gpcon; + __raw_writel(gpcon, base + OFFS_CON); + + /* now set all the other bits */ + + __raw_writel(gps_gpdat, base + OFFS_DAT); + __raw_writel(gps_gpcon, base + OFFS_CON); + + S3C_PMDBG("%s: CON %08x => %08x, DAT %08x => %08x\n", + chip->chip.label, old_gpcon, gps_gpcon, old_gpdat, gps_gpdat); +} + +struct s3c_gpio_pm s3c_gpio_pm_1bit = { + .save = s3c_gpio_pm_1bit_save, + .resume = s3c_gpio_pm_1bit_resume, +}; + +static void s3c_gpio_pm_2bit_save(struct s3c_gpio_chip *chip) +{ + chip->pm_save[0] = __raw_readl(chip->base + OFFS_CON); + chip->pm_save[1] = __raw_readl(chip->base + OFFS_DAT); + chip->pm_save[2] = __raw_readl(chip->base + OFFS_UP); +} + +/* Test whether the given masked+shifted bits of an GPIO configuration + * are one of the SFN (special function) modes. */ + +static inline int is_sfn(unsigned long con) +{ + return con >= 2; +} + +/* Test if the given masked+shifted GPIO configuration is an input */ + +static inline int is_in(unsigned long con) +{ + return con == 0; +} + +/* Test if the given masked+shifted GPIO configuration is an output */ + +static inline int is_out(unsigned long con) +{ + return con == 1; +} + +/** + * s3c_gpio_pm_2bit_resume() - restore the given GPIO bank + * @chip: The chip information to resume. + * + * Restore one of the GPIO banks that was saved during suspend. This is + * not as simple as once thought, due to the possibility of glitches + * from the order that the CON and DAT registers are set in. + * + * The three states the pin can be are {IN,OUT,SFN} which gives us 9 + * combinations of changes to check. Three of these, if the pin stays + * in the same configuration can be discounted. This leaves us with + * the following: + * + * { IN => OUT } Change DAT first + * { IN => SFN } Change CON first + * { OUT => SFN } Change CON first, so new data will not glitch + * { OUT => IN } Change CON first, so new data will not glitch + * { SFN => IN } Change CON first + * { SFN => OUT } Change DAT first, so new data will not glitch [1] + * + * We do not currently deal with the UP registers as these control + * weak resistors, so a small delay in change should not need to bring + * these into the calculations. + * + * [1] this assumes that writing to a pin DAT whilst in SFN will set the + * state for when it is next output. + */ +static void s3c_gpio_pm_2bit_resume(struct s3c_gpio_chip *chip) +{ + void __iomem *base = chip->base; + u32 old_gpcon = __raw_readl(base + OFFS_CON); + u32 old_gpdat = __raw_readl(base + OFFS_DAT); + u32 gps_gpcon = chip->pm_save[0]; + u32 gps_gpdat = chip->pm_save[1]; + u32 gpcon, old, new, mask; + u32 change_mask = 0x0; + int nr; + + /* restore GPIO pull-up settings */ + __raw_writel(chip->pm_save[2], base + OFFS_UP); + + /* Create a change_mask of all the items that need to have + * their CON value changed before their DAT value, so that + * we minimise the work between the two settings. + */ + + for (nr = 0, mask = 0x03; nr < 32; nr += 2, mask <<= 2) { + old = (old_gpcon & mask) >> nr; + new = (gps_gpcon & mask) >> nr; + + /* If there is no change, then skip */ + + if (old == new) + continue; + + /* If both are special function, then skip */ + + if (is_sfn(old) && is_sfn(new)) + continue; + + /* Change is IN => OUT, do not change now */ + + if (is_in(old) && is_out(new)) + continue; + + /* Change is SFN => OUT, do not change now */ + + if (is_sfn(old) && is_out(new)) + continue; + + /* We should now be at the case of IN=>SFN, + * OUT=>SFN, OUT=>IN, SFN=>IN. */ + + change_mask |= mask; + } + + + /* Write the new CON settings */ + + gpcon = old_gpcon & ~change_mask; + gpcon |= gps_gpcon & change_mask; + + __raw_writel(gpcon, base + OFFS_CON); + + /* Now change any items that require DAT,CON */ + + __raw_writel(gps_gpdat, base + OFFS_DAT); + __raw_writel(gps_gpcon, base + OFFS_CON); + + S3C_PMDBG("%s: CON %08x => %08x, DAT %08x => %08x\n", + chip->chip.label, old_gpcon, gps_gpcon, old_gpdat, gps_gpdat); +} + +struct s3c_gpio_pm s3c_gpio_pm_2bit = { + .save = s3c_gpio_pm_2bit_save, + .resume = s3c_gpio_pm_2bit_resume, +}; + +#ifdef CONFIG_ARCH_S3C64XX +static void s3c_gpio_pm_4bit_save(struct s3c_gpio_chip *chip) +{ + chip->pm_save[1] = __raw_readl(chip->base + OFFS_CON); + chip->pm_save[2] = __raw_readl(chip->base + OFFS_DAT); + chip->pm_save[3] = __raw_readl(chip->base + OFFS_UP); + + if (chip->chip.ngpio > 8) + chip->pm_save[0] = __raw_readl(chip->base - 4); +} + +static u32 s3c_gpio_pm_4bit_mask(u32 old_gpcon, u32 gps_gpcon) +{ + u32 old, new, mask; + u32 change_mask = 0x0; + int nr; + + for (nr = 0, mask = 0x0f; nr < 16; nr += 4, mask <<= 4) { + old = (old_gpcon & mask) >> nr; + new = (gps_gpcon & mask) >> nr; + + /* If there is no change, then skip */ + + if (old == new) + continue; + + /* If both are special function, then skip */ + + if (is_sfn(old) && is_sfn(new)) + continue; + + /* Change is IN => OUT, do not change now */ + + if (is_in(old) && is_out(new)) + continue; + + /* Change is SFN => OUT, do not change now */ + + if (is_sfn(old) && is_out(new)) + continue; + + /* We should now be at the case of IN=>SFN, + * OUT=>SFN, OUT=>IN, SFN=>IN. */ + + change_mask |= mask; + } + + return change_mask; +} + +static void s3c_gpio_pm_4bit_con(struct s3c_gpio_chip *chip, int index) +{ + void __iomem *con = chip->base + (index * 4); + u32 old_gpcon = __raw_readl(con); + u32 gps_gpcon = chip->pm_save[index + 1]; + u32 gpcon, mask; + + mask = s3c_gpio_pm_4bit_mask(old_gpcon, gps_gpcon); + + gpcon = old_gpcon & ~mask; + gpcon |= gps_gpcon & mask; + + __raw_writel(gpcon, con); +} + +static void s3c_gpio_pm_4bit_resume(struct s3c_gpio_chip *chip) +{ + void __iomem *base = chip->base; + u32 old_gpcon[2]; + u32 old_gpdat = __raw_readl(base + OFFS_DAT); + u32 gps_gpdat = chip->pm_save[2]; + + /* First, modify the CON settings */ + + old_gpcon[0] = 0; + old_gpcon[1] = __raw_readl(base + OFFS_CON); + + s3c_gpio_pm_4bit_con(chip, 0); + if (chip->chip.ngpio > 8) { + old_gpcon[0] = __raw_readl(base - 4); + s3c_gpio_pm_4bit_con(chip, -1); + } + + /* Now change the configurations that require DAT,CON */ + + __raw_writel(chip->pm_save[2], base + OFFS_DAT); + __raw_writel(chip->pm_save[1], base + OFFS_CON); + if (chip->chip.ngpio > 8) + __raw_writel(chip->pm_save[0], base - 4); + + __raw_writel(chip->pm_save[2], base + OFFS_DAT); + __raw_writel(chip->pm_save[3], base + OFFS_UP); + + if (chip->chip.ngpio > 8) { + S3C_PMDBG("%s: CON4 %08x,%08x => %08x,%08x, DAT %08x => %08x\n", + chip->chip.label, old_gpcon[0], old_gpcon[1], + __raw_readl(base - 4), + __raw_readl(base + OFFS_CON), + old_gpdat, gps_gpdat); + } else + S3C_PMDBG("%s: CON4 %08x => %08x, DAT %08x => %08x\n", + chip->chip.label, old_gpcon[1], + __raw_readl(base + OFFS_CON), + old_gpdat, gps_gpdat); +} + +struct s3c_gpio_pm s3c_gpio_pm_4bit = { + .save = s3c_gpio_pm_4bit_save, + .resume = s3c_gpio_pm_4bit_resume, +}; +#endif /* CONFIG_ARCH_S3C64XX */ + +/** + * s3c_pm_save_gpio() - save gpio chip data for suspend + * @ourchip: The chip for suspend. + */ +static void s3c_pm_save_gpio(struct s3c_gpio_chip *ourchip) +{ + struct s3c_gpio_pm *pm = ourchip->pm; + + if (pm == NULL || pm->save == NULL) + S3C_PMDBG("%s: no pm for %s\n", __func__, ourchip->chip.label); + else + pm->save(ourchip); +} + +/** + * s3c_pm_save_gpios() - Save the state of the GPIO banks. + * + * For all the GPIO banks, save the state of each one ready for going + * into a suspend mode. + */ +void s3c_pm_save_gpios(void) +{ + struct s3c_gpio_chip *ourchip; + unsigned int gpio_nr; + + for (gpio_nr = 0; gpio_nr < S3C_GPIO_END; gpio_nr++) { + ourchip = s3c_gpiolib_getchip(gpio_nr); + if (!ourchip) + continue; + + s3c_pm_save_gpio(ourchip); + + S3C_PMDBG("%s: save %08x,%08x,%08x,%08x\n", + ourchip->chip.label, + ourchip->pm_save[0], + ourchip->pm_save[1], + ourchip->pm_save[2], + ourchip->pm_save[3]); + + gpio_nr += ourchip->chip.ngpio; + gpio_nr += CONFIG_S3C_GPIO_SPACE; + } +} + +/** + * s3c_pm_resume_gpio() - restore gpio chip data after suspend + * @ourchip: The suspended chip. + */ +static void s3c_pm_resume_gpio(struct s3c_gpio_chip *ourchip) +{ + struct s3c_gpio_pm *pm = ourchip->pm; + + if (pm == NULL || pm->resume == NULL) + S3C_PMDBG("%s: no pm for %s\n", __func__, ourchip->chip.label); + else + pm->resume(ourchip); +} + +void s3c_pm_restore_gpios(void) +{ + struct s3c_gpio_chip *ourchip; + unsigned int gpio_nr; + + for (gpio_nr = 0; gpio_nr < S3C_GPIO_END; gpio_nr++) { + ourchip = s3c_gpiolib_getchip(gpio_nr); + if (!ourchip) + continue; + + s3c_pm_resume_gpio(ourchip); + + gpio_nr += ourchip->chip.ngpio; + gpio_nr += CONFIG_S3C_GPIO_SPACE; + } +} diff --git a/arch/arm/plat-s3c/pm.c b/arch/arm/plat-s3c/pm.c index 061182ca66e3..8d97db2c7a0d 100644 --- a/arch/arm/plat-s3c/pm.c +++ b/arch/arm/plat-s3c/pm.c @@ -21,11 +21,10 @@ #include <asm/cacheflush.h> #include <mach/hardware.h> +#include <mach/map.h> #include <plat/regs-serial.h> #include <mach/regs-clock.h> -#include <mach/regs-gpio.h> -#include <mach/regs-mem.h> #include <mach/regs-irq.h> #include <asm/irq.h> @@ -70,6 +69,8 @@ static inline void s3c_pm_debug_init(void) /* Save the UART configurations if we are configured for debug. */ +unsigned char pm_uart_udivslot; + #ifdef CONFIG_S3C2410_PM_DEBUG struct pm_uart_save uart_save[CONFIG_SERIAL_SAMSUNG_UARTS]; @@ -83,6 +84,12 @@ static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save) save->ufcon = __raw_readl(regs + S3C2410_UFCON); save->umcon = __raw_readl(regs + S3C2410_UMCON); save->ubrdiv = __raw_readl(regs + S3C2410_UBRDIV); + + if (pm_uart_udivslot) + save->udivslot = __raw_readl(regs + S3C2443_DIVSLOT); + + S3C_PMDBG("UART[%d]: ULCON=%04x, UCON=%04x, UFCON=%04x, UBRDIV=%04x\n", + uart, save->ulcon, save->ucon, save->ufcon, save->ubrdiv); } static void s3c_pm_save_uarts(void) @@ -98,11 +105,16 @@ static void s3c_pm_restore_uart(unsigned int uart, struct pm_uart_save *save) { void __iomem *regs = S3C_VA_UARTx(uart); + s3c_pm_arch_update_uart(regs, save); + __raw_writel(save->ulcon, regs + S3C2410_ULCON); __raw_writel(save->ucon, regs + S3C2410_UCON); __raw_writel(save->ufcon, regs + S3C2410_UFCON); __raw_writel(save->umcon, regs + S3C2410_UMCON); __raw_writel(save->ubrdiv, regs + S3C2410_UBRDIV); + + if (pm_uart_udivslot) + __raw_writel(save->udivslot, regs + S3C2443_DIVSLOT); } static void s3c_pm_restore_uarts(void) @@ -313,6 +325,9 @@ static int s3c_pm_enter(suspend_state_t state) S3C_PMDBG("%s: post sleep, preparing to return\n", __func__); + /* LEDs should now be 1110 */ + s3c_pm_debug_smdkled(1 << 1, 0); + s3c_pm_check_restore(); /* ok, let's return from sleep */ diff --git a/arch/arm/plat-s3c24xx/adc.c b/arch/arm/plat-s3c24xx/adc.c index 91adfa71c172..ee1baf11ad9e 100644 --- a/arch/arm/plat-s3c24xx/adc.c +++ b/arch/arm/plat-s3c24xx/adc.c @@ -45,7 +45,8 @@ struct s3c_adc_client { unsigned char channel; void (*select_cb)(unsigned selected); - void (*convert_cb)(unsigned val1, unsigned val2); + void (*convert_cb)(unsigned val1, unsigned val2, + unsigned *samples_left); }; struct adc_device { @@ -158,7 +159,8 @@ static void s3c_adc_default_select(unsigned select) struct s3c_adc_client *s3c_adc_register(struct platform_device *pdev, void (*select)(unsigned int selected), - void (*conv)(unsigned d0, unsigned d1), + void (*conv)(unsigned d0, unsigned d1, + unsigned *samples_left), unsigned int is_ts) { struct s3c_adc_client *client; @@ -227,9 +229,10 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw) data1 = readl(adc->regs + S3C2410_ADCDAT1); adc_dbg(adc, "read %d: 0x%04x, 0x%04x\n", client->nr_samples, data0, data1); - (client->convert_cb)(data0 & 0x3ff, data1 & 0x3ff); + client->nr_samples--; + (client->convert_cb)(data0 & 0x3ff, data1 & 0x3ff, &client->nr_samples); - if (--client->nr_samples > 0) { + if (client->nr_samples > 0) { /* fire another conversion for this */ client->select_cb(1); diff --git a/arch/arm/plat-s3c24xx/devs.c b/arch/arm/plat-s3c24xx/devs.c index 16ac01d9b8ab..4eb378c89a39 100644 --- a/arch/arm/plat-s3c24xx/devs.c +++ b/arch/arm/plat-s3c24xx/devs.c @@ -136,36 +136,6 @@ struct platform_device *s3c24xx_uart_src[4] = { struct platform_device *s3c24xx_uart_devs[4] = { }; -/* USB Host Controller */ - -static struct resource s3c_usb_resource[] = { - [0] = { - .start = S3C24XX_PA_USBHOST, - .end = S3C24XX_PA_USBHOST + S3C24XX_SZ_USBHOST - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_USBH, - .end = IRQ_USBH, - .flags = IORESOURCE_IRQ, - } -}; - -static u64 s3c_device_usb_dmamask = 0xffffffffUL; - -struct platform_device s3c_device_usb = { - .name = "s3c2410-ohci", - .id = -1, - .num_resources = ARRAY_SIZE(s3c_usb_resource), - .resource = s3c_usb_resource, - .dev = { - .dma_mask = &s3c_device_usb_dmamask, - .coherent_dma_mask = 0xffffffffUL - } -}; - -EXPORT_SYMBOL(s3c_device_usb); - /* LCD Controller */ static struct resource s3c_lcd_resource[] = { diff --git a/arch/arm/plat-s3c24xx/gpiolib.c b/arch/arm/plat-s3c24xx/gpiolib.c index 5c0491bf738b..4bac12dc0733 100644 --- a/arch/arm/plat-s3c24xx/gpiolib.c +++ b/arch/arm/plat-s3c24xx/gpiolib.c @@ -22,6 +22,7 @@ #include <mach/gpio-core.h> #include <mach/hardware.h> #include <asm/irq.h> +#include <plat/pm.h> #include <mach/regs-gpio.h> @@ -78,6 +79,7 @@ static int s3c24xx_gpiolib_bankg_toirq(struct gpio_chip *chip, unsigned offset) struct s3c_gpio_chip s3c24xx_gpios[] = { [0] = { .base = S3C24XX_GPIO_BASE(S3C2410_GPA0), + .pm = __gpio_pm(&s3c_gpio_pm_1bit), .chip = { .base = S3C2410_GPA0, .owner = THIS_MODULE, @@ -89,6 +91,7 @@ struct s3c_gpio_chip s3c24xx_gpios[] = { }, [1] = { .base = S3C24XX_GPIO_BASE(S3C2410_GPB0), + .pm = __gpio_pm(&s3c_gpio_pm_2bit), .chip = { .base = S3C2410_GPB0, .owner = THIS_MODULE, @@ -98,6 +101,7 @@ struct s3c_gpio_chip s3c24xx_gpios[] = { }, [2] = { .base = S3C24XX_GPIO_BASE(S3C2410_GPC0), + .pm = __gpio_pm(&s3c_gpio_pm_2bit), .chip = { .base = S3C2410_GPC0, .owner = THIS_MODULE, @@ -107,6 +111,7 @@ struct s3c_gpio_chip s3c24xx_gpios[] = { }, [3] = { .base = S3C24XX_GPIO_BASE(S3C2410_GPD0), + .pm = __gpio_pm(&s3c_gpio_pm_2bit), .chip = { .base = S3C2410_GPD0, .owner = THIS_MODULE, @@ -116,6 +121,7 @@ struct s3c_gpio_chip s3c24xx_gpios[] = { }, [4] = { .base = S3C24XX_GPIO_BASE(S3C2410_GPE0), + .pm = __gpio_pm(&s3c_gpio_pm_2bit), .chip = { .base = S3C2410_GPE0, .label = "GPIOE", @@ -125,6 +131,7 @@ struct s3c_gpio_chip s3c24xx_gpios[] = { }, [5] = { .base = S3C24XX_GPIO_BASE(S3C2410_GPF0), + .pm = __gpio_pm(&s3c_gpio_pm_2bit), .chip = { .base = S3C2410_GPF0, .owner = THIS_MODULE, @@ -135,6 +142,7 @@ struct s3c_gpio_chip s3c24xx_gpios[] = { }, [6] = { .base = S3C24XX_GPIO_BASE(S3C2410_GPG0), + .pm = __gpio_pm(&s3c_gpio_pm_2bit), .chip = { .base = S3C2410_GPG0, .owner = THIS_MODULE, diff --git a/arch/arm/plat-s3c24xx/include/plat/map.h b/arch/arm/plat-s3c24xx/include/plat/map.h index eed8f78e7593..c4d133436fc7 100644 --- a/arch/arm/plat-s3c24xx/include/plat/map.h +++ b/arch/arm/plat-s3c24xx/include/plat/map.h @@ -58,7 +58,6 @@ #define S3C24XX_SZ_SPI SZ_1M #define S3C24XX_SZ_SDI SZ_1M #define S3C24XX_SZ_NAND SZ_1M -#define S3C24XX_SZ_USBHOST SZ_1M /* GPIO ports */ diff --git a/arch/arm/plat-s3c24xx/include/plat/pm-core.h b/arch/arm/plat-s3c24xx/include/plat/pm-core.h index c75882113e04..fb45dd9adca5 100644 --- a/arch/arm/plat-s3c24xx/include/plat/pm-core.h +++ b/arch/arm/plat-s3c24xx/include/plat/pm-core.h @@ -57,3 +57,8 @@ static inline void s3c_pm_arch_show_resume_irqs(void) s3c_pm_show_resume_irqs(IRQ_EINT4-4, __raw_readl(S3C2410_EINTPEND), s3c_irqwake_eintmask); } + +static inline void s3c_pm_arch_update_uart(void __iomem *regs, + struct pm_uart_save *save) +{ +} diff --git a/arch/arm/plat-s3c24xx/pm.c b/arch/arm/plat-s3c24xx/pm.c index 062a29339a91..5135c40a1b90 100644 --- a/arch/arm/plat-s3c24xx/pm.c +++ b/arch/arm/plat-s3c24xx/pm.c @@ -75,43 +75,10 @@ static struct sleep_save core_save[] = { SAVE_ITEM(S3C2410_CLKSLOW), }; -static struct gpio_sleep { - void __iomem *base; - unsigned int gpcon; - unsigned int gpdat; - unsigned int gpup; -} gpio_save[] = { - [0] = { - .base = S3C2410_GPACON, - }, - [1] = { - .base = S3C2410_GPBCON, - }, - [2] = { - .base = S3C2410_GPCCON, - }, - [3] = { - .base = S3C2410_GPDCON, - }, - [4] = { - .base = S3C2410_GPECON, - }, - [5] = { - .base = S3C2410_GPFCON, - }, - [6] = { - .base = S3C2410_GPGCON, - }, - [7] = { - .base = S3C2410_GPHCON, - }, -}; - static struct sleep_save misc_save[] = { SAVE_ITEM(S3C2410_DCLKCON), }; - /* s3c_pm_check_resume_pin * * check to see if the pin is configured correctly for sleep mode, and @@ -165,186 +132,6 @@ void s3c_pm_configure_extint(void) } } -/* offsets for CON/DAT/UP registers */ - -#define OFFS_CON (S3C2410_GPACON - S3C2410_GPACON) -#define OFFS_DAT (S3C2410_GPADAT - S3C2410_GPACON) -#define OFFS_UP (S3C2410_GPBUP - S3C2410_GPBCON) - -/* s3c_pm_save_gpios() - * - * Save the state of the GPIOs - */ - -void s3c_pm_save_gpios(void) -{ - struct gpio_sleep *gps = gpio_save; - unsigned int gpio; - - for (gpio = 0; gpio < ARRAY_SIZE(gpio_save); gpio++, gps++) { - void __iomem *base = gps->base; - - gps->gpcon = __raw_readl(base + OFFS_CON); - gps->gpdat = __raw_readl(base + OFFS_DAT); - - if (gpio > 0) - gps->gpup = __raw_readl(base + OFFS_UP); - - } -} - -/* Test whether the given masked+shifted bits of an GPIO configuration - * are one of the SFN (special function) modes. */ - -static inline int is_sfn(unsigned long con) -{ - return (con == 2 || con == 3); -} - -/* Test if the given masked+shifted GPIO configuration is an input */ - -static inline int is_in(unsigned long con) -{ - return con == 0; -} - -/* Test if the given masked+shifted GPIO configuration is an output */ - -static inline int is_out(unsigned long con) -{ - return con == 1; -} - -/** - * s3c2410_pm_restore_gpio() - restore the given GPIO bank - * @index: The number of the GPIO bank being resumed. - * @gps: The sleep confgiuration for the bank. - * - * Restore one of the GPIO banks that was saved during suspend. This is - * not as simple as once thought, due to the possibility of glitches - * from the order that the CON and DAT registers are set in. - * - * The three states the pin can be are {IN,OUT,SFN} which gives us 9 - * combinations of changes to check. Three of these, if the pin stays - * in the same configuration can be discounted. This leaves us with - * the following: - * - * { IN => OUT } Change DAT first - * { IN => SFN } Change CON first - * { OUT => SFN } Change CON first, so new data will not glitch - * { OUT => IN } Change CON first, so new data will not glitch - * { SFN => IN } Change CON first - * { SFN => OUT } Change DAT first, so new data will not glitch [1] - * - * We do not currently deal with the UP registers as these control - * weak resistors, so a small delay in change should not need to bring - * these into the calculations. - * - * [1] this assumes that writing to a pin DAT whilst in SFN will set the - * state for when it is next output. - */ - -static void s3c2410_pm_restore_gpio(int index, struct gpio_sleep *gps) -{ - void __iomem *base = gps->base; - unsigned long gps_gpcon = gps->gpcon; - unsigned long gps_gpdat = gps->gpdat; - unsigned long old_gpcon; - unsigned long old_gpdat; - unsigned long old_gpup = 0x0; - unsigned long gpcon; - int nr; - - old_gpcon = __raw_readl(base + OFFS_CON); - old_gpdat = __raw_readl(base + OFFS_DAT); - - if (base == S3C2410_GPACON) { - /* GPACON only has one bit per control / data and no PULLUPs. - * GPACON[x] = 0 => Output, 1 => SFN */ - - /* first set all SFN bits to SFN */ - - gpcon = old_gpcon | gps->gpcon; - __raw_writel(gpcon, base + OFFS_CON); - - /* now set all the other bits */ - - __raw_writel(gps_gpdat, base + OFFS_DAT); - __raw_writel(gps_gpcon, base + OFFS_CON); - } else { - unsigned long old, new, mask; - unsigned long change_mask = 0x0; - - old_gpup = __raw_readl(base + OFFS_UP); - - /* Create a change_mask of all the items that need to have - * their CON value changed before their DAT value, so that - * we minimise the work between the two settings. - */ - - for (nr = 0, mask = 0x03; nr < 32; nr += 2, mask <<= 2) { - old = (old_gpcon & mask) >> nr; - new = (gps_gpcon & mask) >> nr; - - /* If there is no change, then skip */ - - if (old == new) - continue; - - /* If both are special function, then skip */ - - if (is_sfn(old) && is_sfn(new)) - continue; - - /* Change is IN => OUT, do not change now */ - - if (is_in(old) && is_out(new)) - continue; - - /* Change is SFN => OUT, do not change now */ - - if (is_sfn(old) && is_out(new)) - continue; - - /* We should now be at the case of IN=>SFN, - * OUT=>SFN, OUT=>IN, SFN=>IN. */ - - change_mask |= mask; - } - - /* Write the new CON settings */ - - gpcon = old_gpcon & ~change_mask; - gpcon |= gps_gpcon & change_mask; - - __raw_writel(gpcon, base + OFFS_CON); - - /* Now change any items that require DAT,CON */ - - __raw_writel(gps_gpdat, base + OFFS_DAT); - __raw_writel(gps_gpcon, base + OFFS_CON); - __raw_writel(gps->gpup, base + OFFS_UP); - } - - S3C_PMDBG("GPIO[%d] CON %08lx => %08lx, DAT %08lx => %08lx\n", - index, old_gpcon, gps_gpcon, old_gpdat, gps_gpdat); -} - - -/** s3c2410_pm_restore_gpios() - * - * Restore the state of the GPIOs - */ - -void s3c_pm_restore_gpios(void) -{ - struct gpio_sleep *gps = gpio_save; - int gpio; - - for (gpio = 0; gpio < ARRAY_SIZE(gpio_save); gpio++, gps++) { - s3c2410_pm_restore_gpio(gpio, gps); - } -} void s3c_pm_restore_core(void) { diff --git a/arch/arm/plat-s3c64xx/Kconfig b/arch/arm/plat-s3c64xx/Kconfig index 9ce66151fd95..5ebd8b425a54 100644 --- a/arch/arm/plat-s3c64xx/Kconfig +++ b/arch/arm/plat-s3c64xx/Kconfig @@ -19,6 +19,7 @@ config PLAT_S3C64XX select S3C_GPIO_PULL_UPDOWN select S3C_GPIO_CFG_S3C24XX select S3C_GPIO_CFG_S3C64XX + select USB_ARCH_HAS_OHCI help Base platform code for any Samsung S3C64XX device @@ -63,4 +64,9 @@ config S3C64XX_SETUP_FB_24BPP help Common setup code for S3C64XX with an 24bpp RGB display helper. +config S3C64XX_SETUP_SDHCI_GPIO + bool + help + Common setup code for S3C64XX SDHCI GPIO configurations + endif diff --git a/arch/arm/plat-s3c64xx/Makefile b/arch/arm/plat-s3c64xx/Makefile index 61bdb67e2f6d..2ed5df34f9ea 100644 --- a/arch/arm/plat-s3c64xx/Makefile +++ b/arch/arm/plat-s3c64xx/Makefile @@ -24,6 +24,12 @@ obj-y += gpiolib.o obj-$(CONFIG_CPU_S3C6400_INIT) += s3c6400-init.o obj-$(CONFIG_CPU_S3C6400_CLOCK) += s3c6400-clock.o +# PM support + +obj-$(CONFIG_PM) += pm.o +obj-$(CONFIG_PM) += sleep.o +obj-$(CONFIG_PM) += irq-pm.o + # DMA support obj-$(CONFIG_S3C64XX_DMA) += dma.o @@ -33,3 +39,4 @@ obj-$(CONFIG_S3C64XX_DMA) += dma.o obj-$(CONFIG_S3C64XX_SETUP_I2C0) += setup-i2c0.o obj-$(CONFIG_S3C64XX_SETUP_I2C1) += setup-i2c1.o obj-$(CONFIG_S3C64XX_SETUP_FB_24BPP) += setup-fb-24bpp.o +obj-$(CONFIG_S3C64XX_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
\ No newline at end of file diff --git a/arch/arm/plat-s3c64xx/clock.c b/arch/arm/plat-s3c64xx/clock.c index ad1b9682c9c3..0bc2fa1dfc40 100644 --- a/arch/arm/plat-s3c64xx/clock.c +++ b/arch/arm/plat-s3c64xx/clock.c @@ -27,6 +27,12 @@ #include <plat/devs.h> #include <plat/clock.h> +struct clk clk_h2 = { + .name = "hclk2", + .id = -1, + .rate = 0, +}; + struct clk clk_27m = { .name = "clk_27m", .id = -1, @@ -152,6 +158,18 @@ static struct clk init_clocks_disable[] = { .parent = &clk_48m, .enable = s3c64xx_sclk_ctrl, .ctrlbit = S3C_CLKCON_SCLK_MMC2_48, + }, { + .name = "dma0", + .id = -1, + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_DMA0, + }, { + .name = "dma1", + .id = -1, + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_DMA1, }, }; @@ -246,6 +264,7 @@ static struct clk *clks[] __initdata = { &clk_epll, &clk_27m, &clk_48m, + &clk_h2, }; void __init s3c64xx_register_clocks(void) diff --git a/arch/arm/plat-s3c64xx/cpu.c b/arch/arm/plat-s3c64xx/cpu.c index 91f49a3a665d..b1fdd83940a6 100644 --- a/arch/arm/plat-s3c64xx/cpu.c +++ b/arch/arm/plat-s3c64xx/cpu.c @@ -16,6 +16,7 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/ioport.h> +#include <linux/sysdev.h> #include <linux/serial_core.h> #include <linux/platform_device.h> #include <linux/io.h> @@ -101,9 +102,24 @@ static struct map_desc s3c_iodesc[] __initdata = { .pfn = __phys_to_pfn(S3C64XX_PA_MODEM), .length = SZ_4K, .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S3C_VA_WATCHDOG, + .pfn = __phys_to_pfn(S3C64XX_PA_WATCHDOG), + .length = SZ_4K, + .type = MT_DEVICE, }, }; + +struct sysdev_class s3c64xx_sysclass = { + .name = "s3c64xx-core", +}; + +static struct sys_device s3c64xx_sysdev = { + .cls = &s3c64xx_sysclass, +}; + + /* read cpu identification code */ void __init s3c64xx_init_io(struct map_desc *mach_desc, int size) @@ -115,5 +131,21 @@ void __init s3c64xx_init_io(struct map_desc *mach_desc, int size) iotable_init(mach_desc, size); idcode = __raw_readl(S3C_VA_SYS + 0x118); + if (!idcode) { + /* S3C6400 has the ID register in a different place, + * and needs a write before it can be read. */ + + __raw_writel(0x0, S3C_VA_SYS + 0xA1C); + idcode = __raw_readl(S3C_VA_SYS + 0xA1C); + } + s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids)); } + +static __init int s3c64xx_sysdev_init(void) +{ + sysdev_class_register(&s3c64xx_sysclass); + return sysdev_register(&s3c64xx_sysdev); +} + +core_initcall(s3c64xx_sysdev_init); diff --git a/arch/arm/plat-s3c64xx/gpiolib.c b/arch/arm/plat-s3c64xx/gpiolib.c index ee9188add8fb..ccb82e854962 100644 --- a/arch/arm/plat-s3c64xx/gpiolib.c +++ b/arch/arm/plat-s3c64xx/gpiolib.c @@ -385,12 +385,19 @@ static __init void s3c64xx_gpiolib_add_4bit(struct s3c_gpio_chip *chip) { chip->chip.direction_input = s3c64xx_gpiolib_4bit_input; chip->chip.direction_output = s3c64xx_gpiolib_4bit_output; + chip->pm = __gpio_pm(&s3c_gpio_pm_4bit); } static __init void s3c64xx_gpiolib_add_4bit2(struct s3c_gpio_chip *chip) { chip->chip.direction_input = s3c64xx_gpiolib_4bit2_input; chip->chip.direction_output = s3c64xx_gpiolib_4bit2_output; + chip->pm = __gpio_pm(&s3c_gpio_pm_4bit); +} + +static __init void s3c64xx_gpiolib_add_2bit(struct s3c_gpio_chip *chip) +{ + chip->pm = __gpio_pm(&s3c_gpio_pm_2bit); } static __init void s3c64xx_gpiolib_add(struct s3c_gpio_chip *chips, @@ -412,7 +419,8 @@ static __init int s3c64xx_gpiolib_init(void) s3c64xx_gpiolib_add(gpio_4bit2, ARRAY_SIZE(gpio_4bit2), s3c64xx_gpiolib_add_4bit2); - s3c64xx_gpiolib_add(gpio_2bit, ARRAY_SIZE(gpio_2bit), NULL); + s3c64xx_gpiolib_add(gpio_2bit, ARRAY_SIZE(gpio_2bit), + s3c64xx_gpiolib_add_2bit); return 0; } diff --git a/arch/arm/plat-s3c64xx/include/plat/irqs.h b/arch/arm/plat-s3c64xx/include/plat/irqs.h index f865bf4d709e..743a70094d04 100644 --- a/arch/arm/plat-s3c64xx/include/plat/irqs.h +++ b/arch/arm/plat-s3c64xx/include/plat/irqs.h @@ -157,6 +157,7 @@ #define S3C_EINT(x) ((x) + S3C_IRQ_EINT_BASE) #define IRQ_EINT(x) S3C_EINT(x) +#define IRQ_EINT_BIT(x) ((x) - S3C_EINT(0)) /* Next the external interrupt groups. These are similar to the IRQ_EINT(x) * that they are sourced from the GPIO pins but with a different scheme for diff --git a/arch/arm/plat-s3c64xx/include/plat/pm-core.h b/arch/arm/plat-s3c64xx/include/plat/pm-core.h new file mode 100644 index 000000000000..d347de3ba0dc --- /dev/null +++ b/arch/arm/plat-s3c64xx/include/plat/pm-core.h @@ -0,0 +1,98 @@ +/* linux/arch/arm/plat-s3c64xx/include/plat/pm-core.h + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C64XX - PM core support for arch/arm/plat-s3c/pm.c + * + * 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 <plat/regs-gpio.h> + +static inline void s3c_pm_debug_init_uart(void) +{ + u32 tmp = __raw_readl(S3C_PCLK_GATE); + + /* As a note, since the S3C64XX UARTs generally have multiple + * clock sources, we simply enable PCLK at the moment and hope + * that the resume settings for the UART are suitable for the + * use with PCLK. + */ + + tmp |= S3C_CLKCON_PCLK_UART0; + tmp |= S3C_CLKCON_PCLK_UART1; + tmp |= S3C_CLKCON_PCLK_UART2; + tmp |= S3C_CLKCON_PCLK_UART3; + + __raw_writel(tmp, S3C_PCLK_GATE); + udelay(10); +} + +static inline void s3c_pm_arch_prepare_irqs(void) +{ + /* VIC should have already been taken care of */ + + /* clear any pending EINT0 interrupts */ + __raw_writel(__raw_readl(S3C64XX_EINT0PEND), S3C64XX_EINT0PEND); +} + +static inline void s3c_pm_arch_stop_clocks(void) +{ +} + +static inline void s3c_pm_arch_show_resume_irqs(void) +{ +} + +/* make these defines, we currently do not have any need to change + * the IRQ wake controls depending on the CPU we are running on */ + +#define s3c_irqwake_eintallow ((1 << 28) - 1) +#define s3c_irqwake_intallow (0) + +static inline void s3c_pm_arch_update_uart(void __iomem *regs, + struct pm_uart_save *save) +{ + u32 ucon = __raw_readl(regs + S3C2410_UCON); + u32 ucon_clk = ucon & S3C6400_UCON_CLKMASK; + u32 save_clk = save->ucon & S3C6400_UCON_CLKMASK; + u32 new_ucon; + u32 delta; + + /* S3C64XX UART blocks only support level interrupts, so ensure that + * when we restore unused UART blocks we force the level interrupt + * settigs. */ + save->ucon |= S3C2410_UCON_TXILEVEL | S3C2410_UCON_RXILEVEL; + + /* We have a constraint on changing the clock type of the UART + * between UCLKx and PCLK, so ensure that when we restore UCON + * that the CLK field is correctly modified if the bootloader + * has changed anything. + */ + if (ucon_clk != save_clk) { + new_ucon = save->ucon; + delta = ucon_clk ^ save_clk; + + /* change from UCLKx => wrong PCLK, + * either UCLK can be tested for by a bit-test + * with UCLK0 */ + if (ucon_clk & S3C6400_UCON_UCLK0 && + !(save_clk & S3C6400_UCON_UCLK0) && + delta & S3C6400_UCON_PCLK2) { + new_ucon &= ~S3C6400_UCON_UCLK0; + } else if (delta == S3C6400_UCON_PCLK2) { + /* as an precaution, don't change from + * PCLK2 => PCLK or vice-versa */ + new_ucon ^= S3C6400_UCON_PCLK2; + } + + S3C_PMDBG("ucon change %04x => %04x (save=%04x)\n", + ucon, new_ucon, save->ucon); + save->ucon = new_ucon; + } +} diff --git a/arch/arm/plat-s3c64xx/include/plat/regs-clock.h b/arch/arm/plat-s3c64xx/include/plat/regs-clock.h index b1082c163247..52836d41e333 100644 --- a/arch/arm/plat-s3c64xx/include/plat/regs-clock.h +++ b/arch/arm/plat-s3c64xx/include/plat/regs-clock.h @@ -32,6 +32,7 @@ #define S3C_HCLK_GATE S3C_CLKREG(0x30) #define S3C_PCLK_GATE S3C_CLKREG(0x34) #define S3C_SCLK_GATE S3C_CLKREG(0x38) +#define S3C_MEM0_GATE S3C_CLKREG(0x3C) /* CLKDIV0 */ #define S3C6400_CLKDIV0_MFC_MASK (0xf << 28) diff --git a/arch/arm/plat-s3c64xx/include/plat/s3c6400.h b/arch/arm/plat-s3c64xx/include/plat/s3c6400.h index 571eaa2e54f1..11f2e1e119b0 100644 --- a/arch/arm/plat-s3c64xx/include/plat/s3c6400.h +++ b/arch/arm/plat-s3c64xx/include/plat/s3c6400.h @@ -15,12 +15,13 @@ /* Common init code for S3C6400 related SoCs */ extern void s3c6400_common_init_uarts(struct s3c2410_uartcfg *cfg, int no); -extern void s3c6400_register_clocks(void); +extern void s3c6400_register_clocks(unsigned armclk_divlimit); extern void s3c6400_setup_clocks(void); #ifdef CONFIG_CPU_S3C6400 extern int s3c6400_init(void); +extern void s3c6400_init_irq(void); extern void s3c6400_map_io(void); extern void s3c6400_init_clocks(int xtal); diff --git a/arch/arm/plat-s3c64xx/irq-eint.c b/arch/arm/plat-s3c64xx/irq-eint.c index 47e5155bb13e..f81b7b818ba0 100644 --- a/arch/arm/plat-s3c64xx/irq-eint.c +++ b/arch/arm/plat-s3c64xx/irq-eint.c @@ -14,6 +14,7 @@ #include <linux/kernel.h> #include <linux/interrupt.h> +#include <linux/sysdev.h> #include <linux/gpio.h> #include <linux/irq.h> #include <linux/io.h> @@ -26,6 +27,7 @@ #include <mach/map.h> #include <plat/cpu.h> +#include <plat/pm.h> #define eint_offset(irq) ((irq) - IRQ_EINT(0)) #define eint_irq_to_bit(irq) (1 << eint_offset(irq)) @@ -134,6 +136,7 @@ static struct irq_chip s3c_irq_eint = { .mask_ack = s3c_irq_eint_maskack, .ack = s3c_irq_eint_ack, .set_type = s3c_irq_eint_set_type, + .set_wake = s3c_irqext_wake, }; /* s3c_irq_demux_eint diff --git a/arch/arm/plat-s3c64xx/irq-pm.c b/arch/arm/plat-s3c64xx/irq-pm.c new file mode 100644 index 000000000000..ca523b5d4c17 --- /dev/null +++ b/arch/arm/plat-s3c64xx/irq-pm.c @@ -0,0 +1,111 @@ +/* arch/arm/plat-s3c64xx/irq-pm.c + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C64XX - Interrupt handling Power Management + * + * 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/sysdev.h> +#include <linux/interrupt.h> +#include <linux/serial_core.h> +#include <linux/irq.h> +#include <linux/io.h> + +#include <mach/map.h> + +#include <plat/regs-serial.h> +#include <plat/regs-timer.h> +#include <plat/regs-gpio.h> +#include <plat/cpu.h> +#include <plat/pm.h> + +/* We handled all the IRQ types in this code, to save having to make several + * small files to handle each different type separately. Having the EINT_GRP + * code here shouldn't be as much bloat as the IRQ table space needed when + * they are enabled. The added benefit is we ensure that these registers are + * in the same state as we suspended. + */ + +static struct sleep_save irq_save[] = { + SAVE_ITEM(S3C64XX_PRIORITY), + SAVE_ITEM(S3C64XX_EINT0CON0), + SAVE_ITEM(S3C64XX_EINT0CON1), + SAVE_ITEM(S3C64XX_EINT0FLTCON0), + SAVE_ITEM(S3C64XX_EINT0FLTCON1), + SAVE_ITEM(S3C64XX_EINT0FLTCON2), + SAVE_ITEM(S3C64XX_EINT0FLTCON3), + SAVE_ITEM(S3C64XX_EINT0MASK), + SAVE_ITEM(S3C64XX_TINT_CSTAT), +}; + +static struct irq_grp_save { + u32 fltcon; + u32 con; + u32 mask; +} eint_grp_save[5]; + +static u32 irq_uart_mask[CONFIG_SERIAL_SAMSUNG_UARTS]; + +static int s3c64xx_irq_pm_suspend(struct sys_device *dev, pm_message_t state) +{ + struct irq_grp_save *grp = eint_grp_save; + int i; + + S3C_PMDBG("%s: suspending IRQs\n", __func__); + + s3c_pm_do_save(irq_save, ARRAY_SIZE(irq_save)); + + for (i = 0; i < CONFIG_SERIAL_SAMSUNG_UARTS; i++) + irq_uart_mask[i] = __raw_readl(S3C_VA_UARTx(i) + S3C64XX_UINTM); + + for (i = 0; i < ARRAY_SIZE(eint_grp_save); i++, grp++) { + grp->con = __raw_readl(S3C64XX_EINT12CON + (i * 4)); + grp->mask = __raw_readl(S3C64XX_EINT12MASK + (i * 4)); + grp->fltcon = __raw_readl(S3C64XX_EINT12FLTCON + (i * 4)); + } + + return 0; +} + +static int s3c64xx_irq_pm_resume(struct sys_device *dev) +{ + struct irq_grp_save *grp = eint_grp_save; + int i; + + S3C_PMDBG("%s: resuming IRQs\n", __func__); + + s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save)); + + for (i = 0; i < CONFIG_SERIAL_SAMSUNG_UARTS; i++) + __raw_writel(irq_uart_mask[i], S3C_VA_UARTx(i) + S3C64XX_UINTM); + + for (i = 0; i < ARRAY_SIZE(eint_grp_save); i++, grp++) { + __raw_writel(grp->con, S3C64XX_EINT12CON + (i * 4)); + __raw_writel(grp->mask, S3C64XX_EINT12MASK + (i * 4)); + __raw_writel(grp->fltcon, S3C64XX_EINT12FLTCON + (i * 4)); + } + + S3C_PMDBG("%s: IRQ configuration restored\n", __func__); + return 0; +} + +static struct sysdev_driver s3c64xx_irq_driver = { + .suspend = s3c64xx_irq_pm_suspend, + .resume = s3c64xx_irq_pm_resume, +}; + +static int __init s3c64xx_irq_pm_init(void) +{ + return sysdev_driver_register(&s3c64xx_sysclass, &s3c64xx_irq_driver); +} + +arch_initcall(s3c64xx_irq_pm_init); + diff --git a/arch/arm/plat-s3c64xx/irq.c b/arch/arm/plat-s3c64xx/irq.c index f22edf7c2d2d..8dc5b6da9789 100644 --- a/arch/arm/plat-s3c64xx/irq.c +++ b/arch/arm/plat-s3c64xx/irq.c @@ -14,12 +14,14 @@ #include <linux/kernel.h> #include <linux/interrupt.h> +#include <linux/serial_core.h> #include <linux/irq.h> #include <linux/io.h> #include <asm/hardware/vic.h> #include <mach/map.h> +#include <plat/regs-serial.h> #include <plat/regs-timer.h> #include <plat/cpu.h> @@ -135,9 +137,6 @@ static inline unsigned int s3c_irq_uart_bit(unsigned int irq) } /* UART interrupt registers, not worth adding to seperate include header */ -#define S3C64XX_UINTP 0x30 -#define S3C64XX_UINTSP 0x34 -#define S3C64XX_UINTM 0x38 static void s3c_irq_uart_mask(unsigned int irq) { @@ -233,8 +232,8 @@ void __init s3c64xx_init_irq(u32 vic0_valid, u32 vic1_valid) printk(KERN_DEBUG "%s: initialising interrupts\n", __func__); /* initialise the pair of VICs */ - vic_init(S3C_VA_VIC0, S3C_VIC0_BASE, vic0_valid); - vic_init(S3C_VA_VIC1, S3C_VIC1_BASE, vic1_valid); + vic_init(S3C_VA_VIC0, S3C_VIC0_BASE, vic0_valid, 0); + vic_init(S3C_VA_VIC1, S3C_VIC1_BASE, vic1_valid, 0); /* add the timer sub-irqs */ diff --git a/arch/arm/plat-s3c64xx/pm.c b/arch/arm/plat-s3c64xx/pm.c new file mode 100644 index 000000000000..07a6516a4f3c --- /dev/null +++ b/arch/arm/plat-s3c64xx/pm.c @@ -0,0 +1,175 @@ +/* linux/arch/arm/plat-s3c64xx/pm.c + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C64XX CPU PM support. + * + * 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/init.h> +#include <linux/suspend.h> +#include <linux/serial_core.h> +#include <linux/io.h> + +#include <mach/map.h> + +#include <plat/pm.h> +#include <plat/regs-sys.h> +#include <plat/regs-gpio.h> +#include <plat/regs-clock.h> +#include <plat/regs-syscon-power.h> +#include <plat/regs-gpio-memport.h> + +#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK +#include <plat/gpio-bank-n.h> + +void s3c_pm_debug_smdkled(u32 set, u32 clear) +{ + unsigned long flags; + u32 reg; + + local_irq_save(flags); + reg = __raw_readl(S3C64XX_GPNCON); + reg &= ~(S3C64XX_GPN_CONMASK(12) | S3C64XX_GPN_CONMASK(13) | + S3C64XX_GPN_CONMASK(14) | S3C64XX_GPN_CONMASK(15)); + reg |= S3C64XX_GPN_OUTPUT(12) | S3C64XX_GPN_OUTPUT(13) | + S3C64XX_GPN_OUTPUT(14) | S3C64XX_GPN_OUTPUT(15); + __raw_writel(reg, S3C64XX_GPNCON); + + reg = __raw_readl(S3C64XX_GPNDAT); + reg &= ~(clear << 12); + reg |= set << 12; + __raw_writel(reg, S3C64XX_GPNDAT); + + local_irq_restore(flags); +} +#endif + +static struct sleep_save core_save[] = { + SAVE_ITEM(S3C_APLL_LOCK), + SAVE_ITEM(S3C_MPLL_LOCK), + SAVE_ITEM(S3C_EPLL_LOCK), + SAVE_ITEM(S3C_CLK_SRC), + SAVE_ITEM(S3C_CLK_DIV0), + SAVE_ITEM(S3C_CLK_DIV1), + SAVE_ITEM(S3C_CLK_DIV2), + SAVE_ITEM(S3C_CLK_OUT), + SAVE_ITEM(S3C_HCLK_GATE), + SAVE_ITEM(S3C_PCLK_GATE), + SAVE_ITEM(S3C_SCLK_GATE), + SAVE_ITEM(S3C_MEM0_GATE), + + SAVE_ITEM(S3C_EPLL_CON1), + SAVE_ITEM(S3C_EPLL_CON0), + + SAVE_ITEM(S3C64XX_MEM0DRVCON), + SAVE_ITEM(S3C64XX_MEM1DRVCON), + +#ifndef CONFIG_CPU_FREQ + SAVE_ITEM(S3C_APLL_CON), + SAVE_ITEM(S3C_MPLL_CON), +#endif +}; + +static struct sleep_save misc_save[] = { + SAVE_ITEM(S3C64XX_AHB_CON0), + SAVE_ITEM(S3C64XX_AHB_CON1), + SAVE_ITEM(S3C64XX_AHB_CON2), + + SAVE_ITEM(S3C64XX_SPCON), + + SAVE_ITEM(S3C64XX_MEM0CONSTOP), + SAVE_ITEM(S3C64XX_MEM1CONSTOP), + SAVE_ITEM(S3C64XX_MEM0CONSLP0), + SAVE_ITEM(S3C64XX_MEM0CONSLP1), + SAVE_ITEM(S3C64XX_MEM1CONSLP), +}; + +void s3c_pm_configure_extint(void) +{ + __raw_writel(s3c_irqwake_eintmask, S3C64XX_EINT_MASK); +} + +void s3c_pm_restore_core(void) +{ + __raw_writel(0, S3C64XX_EINT_MASK); + + s3c_pm_debug_smdkled(1 << 2, 0); + + s3c_pm_do_restore_core(core_save, ARRAY_SIZE(core_save)); + s3c_pm_do_restore(misc_save, ARRAY_SIZE(misc_save)); +} + +void s3c_pm_save_core(void) +{ + s3c_pm_do_save(misc_save, ARRAY_SIZE(misc_save)); + s3c_pm_do_save(core_save, ARRAY_SIZE(core_save)); +} + +/* since both s3c6400 and s3c6410 share the same sleep pm calls, we + * put the per-cpu code in here until any new cpu comes along and changes + * this. + */ + +#include <plat/regs-gpio.h> + +static void s3c64xx_cpu_suspend(void) +{ + unsigned long tmp; + + /* set our standby method to sleep */ + + tmp = __raw_readl(S3C64XX_PWR_CFG); + tmp &= ~S3C64XX_PWRCFG_CFG_WFI_MASK; + tmp |= S3C64XX_PWRCFG_CFG_WFI_SLEEP; + __raw_writel(tmp, S3C64XX_PWR_CFG); + + /* clear any old wakeup */ + + __raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT), + S3C64XX_WAKEUP_STAT); + + /* set the LED state to 0110 over sleep */ + s3c_pm_debug_smdkled(3 << 1, 0xf); + + /* issue the standby signal into the pm unit. Note, we + * issue a write-buffer drain just in case */ + + tmp = 0; + + asm("b 1f\n\t" + ".align 5\n\t" + "1:\n\t" + "mcr p15, 0, %0, c7, c10, 5\n\t" + "mcr p15, 0, %0, c7, c10, 4\n\t" + "mcr p15, 0, %0, c7, c0, 4" :: "r" (tmp)); + + /* we should never get past here */ + + panic("sleep resumed to originator?"); +} + +static void s3c64xx_pm_prepare(void) +{ + /* store address of resume. */ + __raw_writel(virt_to_phys(s3c_cpu_resume), S3C64XX_INFORM0); + + /* ensure previous wakeup state is cleared before sleeping */ + __raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT), S3C64XX_WAKEUP_STAT); +} + +static int s3c64xx_pm_init(void) +{ + pm_cpu_prep = s3c64xx_pm_prepare; + pm_cpu_sleep = s3c64xx_cpu_suspend; + pm_uart_udivslot = 1; + return 0; +} + +arch_initcall(s3c64xx_pm_init); diff --git a/arch/arm/plat-s3c64xx/s3c6400-clock.c b/arch/arm/plat-s3c64xx/s3c6400-clock.c index 05b17528041e..1debc1f9f987 100644 --- a/arch/arm/plat-s3c64xx/s3c6400-clock.c +++ b/arch/arm/plat-s3c64xx/s3c6400-clock.c @@ -133,6 +133,65 @@ static struct clksrc_clk clk_mout_mpll = { .sources = &clk_src_mpll, }; +static unsigned int armclk_mask; + +static unsigned long s3c64xx_clk_arm_get_rate(struct clk *clk) +{ + unsigned long rate = clk_get_rate(clk->parent); + u32 clkdiv; + + /* divisor mask starts at bit0, so no need to shift */ + clkdiv = __raw_readl(S3C_CLK_DIV0) & armclk_mask; + + return rate / (clkdiv + 1); +} + +static unsigned long s3c64xx_clk_arm_round_rate(struct clk *clk, + unsigned long rate) +{ + unsigned long parent = clk_get_rate(clk->parent); + u32 div; + + if (parent < rate) + return rate; + + div = (parent / rate) - 1; + if (div > armclk_mask) + div = armclk_mask; + + return parent / (div + 1); +} + +static int s3c64xx_clk_arm_set_rate(struct clk *clk, unsigned long rate) +{ + unsigned long parent = clk_get_rate(clk->parent); + u32 div; + u32 val; + + if (rate < parent / (armclk_mask + 1)) + return -EINVAL; + + rate = clk_round_rate(clk, rate); + div = clk_get_rate(clk->parent) / rate; + + val = __raw_readl(S3C_CLK_DIV0); + val &= armclk_mask; + val |= (div - 1); + __raw_writel(val, S3C_CLK_DIV0); + + return 0; + +} + +static struct clk clk_arm = { + .name = "armclk", + .id = -1, + .parent = &clk_mout_apll.clk, + .get_rate = s3c64xx_clk_arm_get_rate, + .set_rate = s3c64xx_clk_arm_set_rate, + .round_rate = s3c64xx_clk_arm_round_rate, +}; + static unsigned long s3c64xx_clk_doutmpll_get_rate(struct clk *clk) { unsigned long rate = clk_get_rate(clk->parent); @@ -520,6 +579,33 @@ static struct clksrc_clk clk_irda = { .reg_divider = S3C_CLK_DIV2, }; +static struct clk *clkset_camif_list[] = { + &clk_h2, +}; + +static struct clk_sources clkset_camif = { + .sources = clkset_camif_list, + .nr_sources = ARRAY_SIZE(clkset_camif_list), +}; + +static struct clksrc_clk clk_camif = { + .clk = { + .name = "camera", + .id = -1, + .ctrlbit = S3C_CLKCON_SCLK_CAM, + .enable = s3c64xx_sclk_ctrl, + .set_parent = s3c64xx_setparent_clksrc, + .get_rate = s3c64xx_getrate_clksrc, + .set_rate = s3c64xx_setrate_clksrc, + .round_rate = s3c64xx_roundrate_clksrc, + }, + .shift = 0, + .mask = 0, + .sources = &clkset_camif, + .divider_shift = S3C6400_CLKDIV0_CAM_SHIFT, + .reg_divider = S3C_CLK_DIV0, +}; + /* Clock initialisation code */ static struct clksrc_clk *init_parents[] = { @@ -536,6 +622,7 @@ static struct clksrc_clk *init_parents[] = { &clk_audio0, &clk_audio1, &clk_irda, + &clk_camif, }; static void __init_or_cpufreq s3c6400_set_clksrc(struct clksrc_clk *clk) @@ -608,6 +695,7 @@ void __init_or_cpufreq s3c6400_setup_clocks(void) clk_fout_epll.rate = epll; clk_fout_apll.rate = apll; + clk_h2.rate = hclk2; clk_h.rate = hclk; clk_p.rate = pclk; clk_f.rate = fclk; @@ -635,14 +723,30 @@ static struct clk *clks[] __initdata = { &clk_audio0.clk, &clk_audio1.clk, &clk_irda.clk, + &clk_camif.clk, + &clk_arm, }; -void __init s3c6400_register_clocks(void) +/** + * s3c6400_register_clocks - register clocks for s3c6400 and above + * @armclk_divlimit: Divisor mask for ARMCLK + * + * Register the clocks for the S3C6400 and above SoC range, such + * as ARMCLK and the clocks which have divider chains attached. + * + * This call does not setup the clocks, which is left to the + * s3c6400_setup_clocks() call which may be needed by the cpufreq + * or resume code to re-set the clocks if the bootloader has changed + * them. + */ +void __init s3c6400_register_clocks(unsigned armclk_divlimit) { struct clk *clkp; int ret; int ptr; + armclk_mask = armclk_divlimit; + for (ptr = 0; ptr < ARRAY_SIZE(clks); ptr++) { clkp = clks[ptr]; ret = s3c24xx_register_clock(clkp); diff --git a/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c b/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c new file mode 100644 index 000000000000..5417123b0ac1 --- /dev/null +++ b/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c @@ -0,0 +1,55 @@ +/* linux/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c + * + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C64XX - Helper functions for setting up SDHCI device(s) GPIO (HSMMC) + * + * 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/types.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <mach/gpio.h> +#include <plat/gpio-cfg.h> + +void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + + end = S3C64XX_GPG(2 + width); + + /* Set all the necessary GPG pins to special-function 0 */ + for (gpio = S3C64XX_GPG(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2)); +} + +void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + + end = S3C64XX_GPH(2 + width); + + /* Set all the necessary GPG pins to special-function 0 */ + for (gpio = S3C64XX_GPH(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3)); +} diff --git a/arch/arm/plat-s3c64xx/sleep.S b/arch/arm/plat-s3c64xx/sleep.S new file mode 100644 index 000000000000..8e71fe90a373 --- /dev/null +++ b/arch/arm/plat-s3c64xx/sleep.S @@ -0,0 +1,144 @@ +/* linux/0arch/arm/plat-s3c64xx/sleep.S + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C64XX CPU sleep code + * + * 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/linkage.h> +#include <asm/assembler.h> +#include <mach/map.h> + +#undef S3C64XX_VA_GPIO +#define S3C64XX_VA_GPIO (0x0) + +#include <plat/regs-gpio.h> +#include <plat/gpio-bank-n.h> + +#define LL_UART (S3C_PA_UART + (0x400 * CONFIG_S3C_LOWLEVEL_UART_PORT)) + + .text + + /* s3c_cpu_save + * + * Save enough processor state to allow the restart of the pm.c + * code after resume. + * + * entry: + * r0 = pointer to the save block + */ + +ENTRY(s3c_cpu_save) + stmfd sp!, { r4 - r12, lr } + + mrc p15, 0, r4, c13, c0, 0 @ FCSE/PID + mrc p15, 0, r5, c3, c0, 0 @ Domain ID + mrc p15, 0, r6, c2, c0, 0 @ Translation Table BASE0 + mrc p15, 0, r7, c2, c0, 1 @ Translation Table BASE1 + mrc p15, 0, r8, c2, c0, 2 @ Translation Table Control + mrc p15, 0, r9, c1, c0, 0 @ Control register + mrc p15, 0, r10, c1, c0, 1 @ Auxiliary control register + mrc p15, 0, r11, c1, c0, 2 @ Co-processor access controls + + stmia r0, { r4 - r13 } @ Save CP registers and SP + + @@ save our state to ram + bl s3c_pm_cb_flushcache + + @@ call final suspend code + ldr r0, =pm_cpu_sleep + ldr pc, [r0] + + @@ return to the caller, after the MMU is turned on. + @@ restore the last bits of the stack and return. +resume_with_mmu: + ldmfd sp!, { r4 - r12, pc } @ return, from sp from s3c_cpu_save + + .data + + /* the next bit is code, but it requires easy access to the + * s3c_sleep_save_phys data before the MMU is switched on, so + * we store the code that needs this variable in the .data where + * the value can be written to (the .text segment is RO). + */ + + .global s3c_sleep_save_phys +s3c_sleep_save_phys: + .word 0 + + /* Sleep magic, the word before the resume entry point so that the + * bootloader can check for a resumeable image. */ + + .word 0x2bedf00d + + /* s3c_cpu_reusme + * + * This is the entry point, stored by whatever method the bootloader + * requires to get the kernel runnign again. This code expects to be + * entered with no caches live and the MMU disabled. It will then + * restore the MMU and other basic CP registers saved and restart + * the kernel C code to finish the resume code. + */ + +ENTRY(s3c_cpu_resume) + msr cpsr_c, #PSR_I_BIT | PSR_F_BIT | SVC_MODE + ldr r2, =LL_UART /* for debug */ + +#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK + /* Initialise the GPIO state if we are debugging via the SMDK LEDs, + * as the uboot version supplied resets these to inputs during the + * resume checks. + */ + + ldr r3, =S3C64XX_PA_GPIO + ldr r0, [ r3, #S3C64XX_GPNCON ] + bic r0, r0, #(S3C64XX_GPN_CONMASK(12) | S3C64XX_GPN_CONMASK(13) | \ + S3C64XX_GPN_CONMASK(14) | S3C64XX_GPN_CONMASK(15)) + orr r0, r0, #(S3C64XX_GPN_OUTPUT(12) | S3C64XX_GPN_OUTPUT(13) | \ + S3C64XX_GPN_OUTPUT(14) | S3C64XX_GPN_OUTPUT(15)) + str r0, [ r3, #S3C64XX_GPNCON ] + + ldr r0, [ r3, #S3C64XX_GPNDAT ] + bic r0, r0, #0xf << 12 @ GPN12..15 + orr r0, r0, #1 << 15 @ GPN15 + str r0, [ r3, #S3C64XX_GPNDAT ] +#endif + + /* __v6_setup from arch/arm/mm/proc-v6.S, ensure that the caches + * are thoroughly cleaned just in case the bootloader didn't do it + * for us. */ + mov r0, #0 + mcr p15, 0, r0, c7, c14, 0 @ clean+invalidate D cache + mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache + mcr p15, 0, r0, c7, c15, 0 @ clean+invalidate cache + mcr p15, 0, r0, c7, c10, 4 @ drain write buffer + @@mcr p15, 0, r0, c8, c7, 0 @ invalidate I + D TLBs + @@mcr p15, 0, r0, c7, c7, 0 @ Invalidate I + D caches + + ldr r0, s3c_sleep_save_phys + ldmia r0, { r4 - r13 } + + mcr p15, 0, r4, c13, c0, 0 @ FCSE/PID + mcr p15, 0, r5, c3, c0, 0 @ Domain ID + mcr p15, 0, r6, c2, c0, 0 @ Translation Table BASE0 + mcr p15, 0, r7, c2, c0, 1 @ Translation Table BASE1 + mcr p15, 0, r8, c2, c0, 2 @ Translation Table Control + mcr p15, 0, r10, c1, c0, 1 @ Auxiliary control register + + mov r0, #0 @ restore copro access controls + mcr p15, 0, r11, c1, c0, 2 @ Co-processor access controls + mcr p15, 0, r0, c7, c5, 4 + + ldr r2, =resume_with_mmu + mcr p15, 0, r9, c1, c0, 0 /* turn mmu back on */ + nop + mov pc, r2 /* jump back */ + + .end |
