diff options
| -rw-r--r-- | arch/arm/mach-davinci/dm355.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/dm644x.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/dm646x.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/gpio.c | 39 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/common.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/gpio.h | 14 |
6 files changed, 37 insertions, 31 deletions
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index 1b7c16cd2672..757def752010 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -13,6 +13,7 @@ #include <linux/clk.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> +#include <linux/gpio.h> #include <linux/spi/spi.h> @@ -647,6 +648,9 @@ static struct davinci_soc_info davinci_soc_info_dm355 = { .intc_irq_num = DAVINCI_N_AINTC_IRQ, .timer_info = &dm355_timer_info, .wdt_base = IO_ADDRESS(DAVINCI_WDOG_BASE), + .gpio_base = IO_ADDRESS(DAVINCI_GPIO_BASE), + .gpio_num = 104, + .gpio_irq = IRQ_DM355_GPIOBNK0, }; void __init dm355_init(void) diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c index c66269264cca..cfd918e41e2d 100644 --- a/arch/arm/mach-davinci/dm644x.c +++ b/arch/arm/mach-davinci/dm644x.c @@ -12,6 +12,7 @@ #include <linux/init.h> #include <linux/clk.h> #include <linux/platform_device.h> +#include <linux/gpio.h> #include <asm/mach/map.h> @@ -590,6 +591,9 @@ static struct davinci_soc_info davinci_soc_info_dm644x = { .intc_irq_num = DAVINCI_N_AINTC_IRQ, .timer_info = &dm644x_timer_info, .wdt_base = IO_ADDRESS(DAVINCI_WDOG_BASE), + .gpio_base = IO_ADDRESS(DAVINCI_GPIO_BASE), + .gpio_num = 71, + .gpio_irq = IRQ_GPIOBNK0, }; void __init dm644x_init(void) diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index 83d67cf6935f..f980c2f95de4 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -12,6 +12,7 @@ #include <linux/init.h> #include <linux/clk.h> #include <linux/platform_device.h> +#include <linux/gpio.h> #include <asm/mach/map.h> @@ -569,6 +570,9 @@ static struct davinci_soc_info davinci_soc_info_dm646x = { .intc_irq_num = DAVINCI_N_AINTC_IRQ, .timer_info = &dm646x_timer_info, .wdt_base = IO_ADDRESS(DAVINCI_WDOG_BASE), + .gpio_base = IO_ADDRESS(DAVINCI_GPIO_BASE), + .gpio_num = 43, /* Only 33 usable */ + .gpio_irq = IRQ_DM646X_GPIOBNK0, }; void __init dm646x_init(void) diff --git a/arch/arm/mach-davinci/gpio.c b/arch/arm/mach-davinci/gpio.c index 40327b557d79..1b6532159c58 100644 --- a/arch/arm/mach-davinci/gpio.c +++ b/arch/arm/mach-davinci/gpio.c @@ -23,6 +23,7 @@ #include <mach/cputype.h> #include <mach/irqs.h> #include <mach/hardware.h> +#include <mach/common.h> #include <mach/gpio.h> #include <asm/mach/irq.h> @@ -37,8 +38,6 @@ struct davinci_gpio { static struct davinci_gpio chips[DIV_ROUND_UP(DAVINCI_N_GPIO, 32)]; -static unsigned __initdata ngpio; - /* create a non-inlined version */ static struct gpio_controller __iomem * __init gpio2controller(unsigned gpio) { @@ -116,23 +115,16 @@ davinci_gpio_set(struct gpio_chip *chip, unsigned offset, int value) static int __init davinci_gpio_setup(void) { int i, base; + unsigned ngpio; + struct davinci_soc_info *soc_info = &davinci_soc_info; - /* The gpio banks conceptually expose a segmented bitmap, + /* + * The gpio banks conceptually expose a segmented bitmap, * and "ngpio" is one more than the largest zero-based * bit index that's valid. */ - if (cpu_is_davinci_dm355()) { /* or dm335() */ - ngpio = 104; - } else if (cpu_is_davinci_dm644x()) { /* or dm337() */ - ngpio = 71; - } else if (cpu_is_davinci_dm646x()) { - /* NOTE: each bank has several "reserved" bits, - * unusable as GPIOs. Only 33 of the GPIO numbers - * are usable, and we're not rejecting the others. - */ - ngpio = 43; - } else { - /* if cpu_is_davinci_dm643x() ngpio = 111 */ + ngpio = soc_info->gpio_num; + if (ngpio == 0) { pr_err("GPIO setup: how many GPIOs?\n"); return -EINVAL; } @@ -279,17 +271,15 @@ gpio_irq_handler(unsigned irq, struct irq_desc *desc) static int __init davinci_gpio_irq_setup(void) { unsigned gpio, irq, bank; - unsigned bank_irq; struct clk *clk; u32 binten = 0; + unsigned ngpio, bank_irq; + struct davinci_soc_info *soc_info = &davinci_soc_info; + + ngpio = soc_info->gpio_num; - if (cpu_is_davinci_dm355()) { /* or dm335() */ - bank_irq = IRQ_DM355_GPIOBNK0; - } else if (cpu_is_davinci_dm644x()) { - bank_irq = IRQ_GPIOBNK0; - } else if (cpu_is_davinci_dm646x()) { - bank_irq = IRQ_DM646X_GPIOBNK0; - } else { + bank_irq = soc_info->gpio_irq; + if (bank_irq == 0) { printk(KERN_ERR "Don't know first GPIO bank IRQ.\n"); return -EINVAL; } @@ -329,8 +319,7 @@ static int __init davinci_gpio_irq_setup(void) /* BINTEN -- per-bank interrupt enable. genirq would also let these * bits be set/cleared dynamically. */ - __raw_writel(binten, (void *__iomem) - IO_ADDRESS(DAVINCI_GPIO_BASE + 0x08)); + __raw_writel(binten, soc_info->gpio_base + 0x08); printk(KERN_INFO "DaVinci: %d gpio irqs\n", irq - gpio_to_irq(0)); diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h index d63703826a60..06ff6d6e3678 100644 --- a/arch/arm/mach-davinci/include/mach/common.h +++ b/arch/arm/mach-davinci/include/mach/common.h @@ -58,6 +58,9 @@ struct davinci_soc_info { unsigned long intc_irq_num; struct davinci_timer_info *timer_info; void __iomem *wdt_base; + void __iomem *gpio_base; + unsigned gpio_num; + unsigned gpio_irq; }; extern struct davinci_soc_info davinci_soc_info; diff --git a/arch/arm/mach-davinci/include/mach/gpio.h b/arch/arm/mach-davinci/include/mach/gpio.h index efe3281364e6..ae0745568316 100644 --- a/arch/arm/mach-davinci/include/mach/gpio.h +++ b/arch/arm/mach-davinci/include/mach/gpio.h @@ -17,6 +17,7 @@ #include <asm-generic/gpio.h> #include <mach/irqs.h> +#include <mach/common.h> #define DAVINCI_GPIO_BASE 0x01C67000 @@ -67,15 +68,16 @@ static inline struct gpio_controller *__iomem __gpio_to_controller(unsigned gpio) { void *__iomem ptr; + void __iomem *base = davinci_soc_info.gpio_base; if (gpio < 32 * 1) - ptr = IO_ADDRESS(DAVINCI_GPIO_BASE + 0x10); + ptr = base + 0x10; else if (gpio < 32 * 2) - ptr = IO_ADDRESS(DAVINCI_GPIO_BASE + 0x38); + ptr = base + 0x38; else if (gpio < 32 * 3) - ptr = IO_ADDRESS(DAVINCI_GPIO_BASE + 0x60); + ptr = base + 0x60; else if (gpio < 32 * 4) - ptr = IO_ADDRESS(DAVINCI_GPIO_BASE + 0x88); + ptr = base + 0x88; else ptr = NULL; return ptr; @@ -142,13 +144,13 @@ static inline int gpio_to_irq(unsigned gpio) { if (gpio >= DAVINCI_N_GPIO) return -EINVAL; - return DAVINCI_N_AINTC_IRQ + gpio; + return davinci_soc_info.intc_irq_num + gpio; } static inline int irq_to_gpio(unsigned irq) { /* caller guarantees gpio_to_irq() succeeded */ - return irq - DAVINCI_N_AINTC_IRQ; + return irq - davinci_soc_info.intc_irq_num; } #endif /* __DAVINCI_GPIO_H */ |