diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2011-09-28 09:11:30 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-10-01 23:45:34 +0100 |
| commit | f55be1bf52aad524dc1bf556ae26c90262c87825 (patch) | |
| tree | de61131bfac6985902a66ce0b29909ad0519acf9 /arch/arm/mach-mmp/include/mach/gpio-pxa.h | |
| parent | 354bf8010ffea1ca5accd9fae26b7373df96bcb7 (diff) | |
| download | kernel_goldelico_gta04-f55be1bf52aad524dc1bf556ae26c90262c87825.zip kernel_goldelico_gta04-f55be1bf52aad524dc1bf556ae26c90262c87825.tar.gz kernel_goldelico_gta04-f55be1bf52aad524dc1bf556ae26c90262c87825.tar.bz2 | |
ARM: 7104/1: plat-pxa: break out GPIO driver specifics
The <mach/gpio.h> file is included from upper directories
and deal with generic GPIO and gpiolib stuff. Break out the
platform and driver specific defines and functions into its own
header file.
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-mmp/include/mach/gpio-pxa.h')
| -rw-r--r-- | arch/arm/mach-mmp/include/mach/gpio-pxa.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/include/mach/gpio-pxa.h b/arch/arm/mach-mmp/include/mach/gpio-pxa.h new file mode 100644 index 0000000..c017a98 --- /dev/null +++ b/arch/arm/mach-mmp/include/mach/gpio-pxa.h @@ -0,0 +1,30 @@ +#ifndef __ASM_MACH_GPIO_PXA_H +#define __ASM_MACH_GPIO_PXA_H + +#include <mach/addr-map.h> +#include <mach/irqs.h> + +#define GPIO_REGS_VIRT (APB_VIRT_BASE + 0x19000) + +#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2)) +#define GPIO_REG(x) (*((volatile u32 *)(GPIO_REGS_VIRT + (x)))) + +#define NR_BUILTIN_GPIO IRQ_GPIO_NUM + +#define gpio_to_bank(gpio) ((gpio) >> 5) + +/* NOTE: these macros are defined here to make optimization of + * gpio_{get,set}_value() to work when 'gpio' is a constant. + * Usage of these macros otherwise is no longer recommended, + * use generic GPIO API whenever possible. + */ +#define GPIO_bit(gpio) (1 << ((gpio) & 0x1f)) + +#define GPLR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x00) +#define GPDR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x0c) +#define GPSR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x18) +#define GPCR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x24) + +#include <plat/gpio-pxa.h> + +#endif /* __ASM_MACH_GPIO_PXA_H */ |