diff options
118 files changed, 4529 insertions, 1358 deletions
diff --git a/Documentation/arm/Samsung-S3C24XX/GPIO.txt b/Documentation/arm/Samsung-S3C24XX/GPIO.txt index ea7ccfc4b27..948c8718d96 100644 --- a/Documentation/arm/Samsung-S3C24XX/GPIO.txt +++ b/Documentation/arm/Samsung-S3C24XX/GPIO.txt @@ -51,7 +51,7 @@ PIN Numbers ----------- Each pin has an unique number associated with it in regs-gpio.h, - eg S3C2410_GPA0 or S3C2410_GPF1. These defines are used to tell + eg S3C2410_GPA(0) or S3C2410_GPF(1). These defines are used to tell the GPIO functions which pin is to be used. @@ -65,11 +65,11 @@ Configuring a pin Eg: - s3c2410_gpio_cfgpin(S3C2410_GPA0, S3C2410_GPA0_ADDR0); - s3c2410_gpio_cfgpin(S3C2410_GPE8, S3C2410_GPE8_SDDAT1); + s3c2410_gpio_cfgpin(S3C2410_GPA(0), S3C2410_GPA0_ADDR0); + s3c2410_gpio_cfgpin(S3C2410_GPE(8), S3C2410_GPE8_SDDAT1); - which would turn GPA0 into the lowest Address line A0, and set - GPE8 to be connected to the SDIO/MMC controller's SDDAT1 line. + which would turn GPA(0) into the lowest Address line A0, and set + GPE(8) to be connected to the SDIO/MMC controller's SDDAT1 line. Reading the current configuration diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig index a2cd9beaf37..38518d450bc 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 b2a781d9ce0..887c6eb3a18 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. |