diff options
Diffstat (limited to 'include/asm-arm/arch-pxa')
| -rw-r--r-- | include/asm-arm/arch-pxa/gpio.h | 48 | ||||
| -rw-r--r-- | include/asm-arm/arch-pxa/pxa-regs.h | 13 |
2 files changed, 33 insertions, 28 deletions
diff --git a/include/asm-arm/arch-pxa/gpio.h b/include/asm-arm/arch-pxa/gpio.h index 9dbc2dc794f..bdbf5f9ffdd 100644 --- a/include/asm-arm/arch-pxa/gpio.h +++ b/include/asm-arm/arch-pxa/gpio.h @@ -28,43 +28,35 @@ #include <asm/irq.h> #include <asm/hardware.h> -static inline int gpio_request(unsigned gpio, const char *label) -{ - return 0; -} +#include <asm-generic/gpio.h> -static inline void gpio_free(unsigned gpio) -{ - return; -} -extern int gpio_direction_input(unsigned gpio); -extern int gpio_direction_output(unsigned gpio, int value); +/* NOTE: some PXAs have fewer on-chip GPIOs (like PXA255, with 85). + * Those cases currently cause holes in the GPIO number space. + */ +#define NR_BUILTIN_GPIO 128 -static inline int __gpio_get_value(unsigned gpio) +static inline int gpio_get_value(unsigned gpio) { - return GPLR(gpio) & GPIO_bit(gpio); + if (__builtin_constant_p(gpio) && (gpio < NR_BUILTIN_GPIO)) + return GPLR(gpio) & GPIO_bit(gpio); + else + return __gpio_get_value(gpio); } -#define gpio_get_value(gpio) \ - (__builtin_constant_p(gpio) ? \ - __gpio_get_value(gpio) : \ - pxa_gpio_get_value(gpio)) - -static inline void __gpio_set_value(unsigned gpio, int value) +static inline void gpio_set_value(unsigned gpio, int value) { - if (value) - GPSR(gpio) = GPIO_bit(gpio); - else - GPCR(gpio) = GPIO_bit(gpio); + if (__builtin_constant_p(gpio) && (gpio < NR_BUILTIN_GPIO)) { + if (value) + GPSR(gpio) = GPIO_bit(gpio); + else + GPCR(gpio) = GPIO_bit(gpio); + } else { + __gpio_set_value(gpio, value); + } } -#define gpio_set_value(gpio,value) \ - (__builtin_constant_p(gpio) ? \ - __gpio_set_value(gpio, value) : \ - pxa_gpio_set_value(gpio, value)) - -#include <asm-generic/gpio.h> /* cansleep wrappers */ +#define gpio_cansleep __gpio_cansleep #define gpio_to_irq(gpio) IRQ_GPIO(gpio) #define irq_to_gpio(irq) IRQ_TO_GPIO(irq) diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h index 16ed24dbda4..ac175b4d10c 100644 --- a/include/asm-arm/arch-pxa/pxa-regs.h +++ b/include/asm-arm/arch-pxa/pxa-regs.h @@ -1131,6 +1131,19 @@ * General Purpose I/O */ +#define GPIO0_BASE ((void __iomem *)io_p2v(0x40E00000)) +#define GPIO1_BASE ((void __iomem *)io_p2v(0x40E00004)) +#define GPIO2_BASE ((void __iomem *)io_p2v(0x40E00008)) +#define GPIO3_BASE ((void __iomem *)io_p2v(0x40E00100)) + +#define GPLR_OFFSET 0x00 +#define GPDR_OFFSET 0x0C +#define GPSR_OFFSET 0x18 +#define GPCR_OFFSET 0x24 +#define GRER_OFFSET 0x30 +#define GFER_OFFSET 0x3C +#define GEDR_OFFSET 0x48 + #define GPLR0 __REG(0x40E00000) /* GPIO Pin-Level Register GPIO<31:0> */ #define GPLR1 __REG(0x40E00004) /* GPIO Pin-Level Register GPIO<63:32> */ #define GPLR2 __REG(0x40E00008) /* GPIO Pin-Level Register GPIO<80:64> */ |