diff options
Diffstat (limited to 'arch/arm/mach-pxa/include/mach/gpio.h')
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/gpio.h | 74 |
1 files changed, 71 insertions, 3 deletions
diff --git a/arch/arm/mach-pxa/include/mach/gpio.h b/arch/arm/mach-pxa/include/mach/gpio.h index c7ac3d62d34d..be4900ea32da 100644 --- a/arch/arm/mach-pxa/include/mach/gpio.h +++ b/arch/arm/mach-pxa/include/mach/gpio.h @@ -24,12 +24,80 @@ #ifndef __ASM_ARCH_PXA_GPIO_H #define __ASM_ARCH_PXA_GPIO_H -#include <mach/pxa-regs.h> -#include <asm/irq.h> +#include <mach/irqs.h> #include <mach/hardware.h> - #include <asm-generic/gpio.h> +#define GPIO_REGS_VIRT io_p2v(0x40E00000) + +#define BANK_OFF(n) (((n) > 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2)) +#define GPIO_REG(x) (*(volatile u32 *)(GPIO_REGS_VIRT + (x))) + +/* GPIO Pin Level Registers */ +#define GPLR0 GPIO_REG(BANK_OFF(0) + 0x00) +#define GPLR1 GPIO_REG(BANK_OFF(1) + 0x00) +#define GPLR2 GPIO_REG(BANK_OFF(2) + 0x00) +#define GPLR3 GPIO_REG(BANK_OFF(3) + 0x00) + +/* GPIO Pin Direction Registers */ +#define GPDR0 GPIO_REG(BANK_OFF(0) + 0x0c) +#define GPDR1 GPIO_REG(BANK_OFF(1) + 0x0c) +#define GPDR2 GPIO_REG(BANK_OFF(2) + 0x0c) +#define GPDR3 GPIO_REG(BANK_OFF(3) + 0x0c) + +/* GPIO Pin Output Set Registers */ +#define GPSR0 GPIO_REG(BANK_OFF(0) + 0x18) +#define GPSR1 GPIO_REG(BANK_OFF(1) + 0x18) +#define GPSR2 GPIO_REG(BANK_OFF(2) + 0x18) +#define GPSR3 GPIO_REG(BANK_OFF(3) + 0x18) + +/* GPIO Pin Output Clear Registers */ +#define GPCR0 GPIO_REG(BANK_OFF(0) + 0x24) +#define GPCR1 GPIO_REG(BANK_OFF(1) + 0x24) +#define GPCR2 GPIO_REG(BANK_OFF(2) + 0x24) +#define GPCR3 GPIO_REG(BANK_OFF(3) + 0x24) + +/* GPIO Rising Edge Detect Registers */ +#define GRER0 GPIO_REG(BANK_OFF(0) + 0x30) +#define GRER1 GPIO_REG(BANK_OFF(1) + 0x30) +#define GRER2 GPIO_REG(BANK_OFF(2) + 0x30) +#define GRER3 GPIO_REG(BANK_OFF(3) + 0x30) + +/* GPIO Falling Edge Detect Registers */ +#define GFER0 GPIO_REG(BANK_OFF(0) + 0x3c) +#define GFER1 GPIO_REG(BANK_OFF(1) + 0x3c) +#define GFER2 GPIO_REG(BANK_OFF(2) + 0x3c) +#define GFER3 GPIO_REG(BANK_OFF(3) + 0x3c) + +/* GPIO Edge Detect Status Registers */ +#define GEDR0 GPIO_REG(BANK_OFF(0) + 0x48) +#define GEDR1 GPIO_REG(BANK_OFF(1) + 0x48) +#define GEDR2 GPIO_REG(BANK_OFF(2) + 0x48) +#define GEDR3 GPIO_REG(BANK_OFF(3) + 0x48) + +/* GPIO Alternate Function Select Registers */ +#define GAFR0_L GPIO_REG(0x0054) +#define GAFR0_U GPIO_REG(0x0058) +#define GAFR1_L GPIO_REG(0x005C) +#define GAFR1_U GPIO_REG(0x0060) +#define GAFR2_L GPIO_REG(0x0064) +#define GAFR2_U GPIO_REG(0x0068) +#define GAFR3_L GPIO_REG(0x006C) +#define GAFR3_U GPIO_REG(0x0070) + +/* More handy macros. The argument is a literal GPIO number. */ + +#define GPIO_bit(x) (1 << ((x) & 0x1f)) + +#define GPLR(x) GPIO_REG(BANK_OFF((x) >> 5) + 0x00) +#define GPDR(x) GPIO_REG(BANK_OFF((x) >> 5) + 0x0c) +#define GPSR(x) GPIO_REG(BANK_OFF((x) >> 5) + 0x18) +#define GPCR(x) GPIO_REG(BANK_OFF((x) >> 5) + 0x24) +#define GRER(x) GPIO_REG(BANK_OFF((x) >> 5) + 0x30) +#define GFER(x) GPIO_REG(BANK_OFF((x) >> 5) + 0x3c) +#define GEDR(x) GPIO_REG(BANK_OFF((x) >> 5) + 0x48) +#define GAFR(x) GPIO_REG(0x54 + (((x) & 0x70) >> 2)) + /* NOTE: some PXAs have fewer on-chip GPIOs (like PXA255, with 85). * Those cases currently cause holes in the GPIO number space. |