diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-27 08:39:10 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-27 08:39:10 +0200 |
commit | ca90666287401b475d9e0becf85bd02f069f1de8 (patch) | |
tree | ad4dd789f8d5ab639c78997d3655b94fcbf660ef /arch/arm/plat-pxa/include/plat/gpio-pxa.h | |
parent | 60325f0c6ee7c6b68f95aaa643260fb33d4bdd88 (diff) | |
parent | 374e759db148d1e874e3afb76707082af67e0984 (diff) |
Merge branch 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (43 commits)
ARM: 7135/1: ep93xx: bring back missing <mach/gpio.h>
ARM: 7104/1: plat-pxa: break out GPIO driver specifics
ARM: 7103/1: plat-pxa: move PXA GPIO driver to GPIO subsystem
ARM: 7042/3: mach-ep93xx: break out GPIO driver specifics
ARM: 7101/1: arm/tegra: Replace <mach/gpio.h> with <mach/gpio-tegra.h>
ARM: 7094/1: arm/tegra: Move EN_VDD_1V05_GPIO to board-harmony.h
ARM: 7083/1: rewrite U300 GPIO to use gpiolib
ARM: 7074/1: gpio: davinci: eliminate unused variable warnings
ARM: 7063/1: Orion: gpio: add missing include of linux/types.h
ARM: 7055/1: arm/tegra: mach/gpio.h: include linux/types.h to fix build
ARM: 7054/1: arm/tegra: Delete custom gpio_to_irq, and irq_to_gpio
ARM: 7053/1: gpio/tegra: Implement gpio_chip.to_irq
ARM: 7052/1: gpio/tegra: Remove use of irq_to_gpio
ARM: 7057/1: mach-pnx4008: rename GPIO header
ARM: 7056/1: plat-nomadik: kill off <plat/gpio.h>
ARM: 7050/1: mach-sa1100: delete irq_to_gpio() function
ARM: 7049/1: mach-sa1100: move SA1100 GPIO driver to GPIO subsystem
ARM: 7045/1: mach-lpc32xx: break out GPIO driver specifics
ARM: 7044/1: mach-lpc32xx: move LPC32XX GPIO driver to GPIO subsystem
ARM: 7043/1: mach-ixp2000: rename GPIO header
...
Fix up trivial conflicts in arch/arm/mach-u300/Kconfig manually
Diffstat (limited to 'arch/arm/plat-pxa/include/plat/gpio-pxa.h')
-rw-r--r-- | arch/arm/plat-pxa/include/plat/gpio-pxa.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/plat-pxa/include/plat/gpio-pxa.h b/arch/arm/plat-pxa/include/plat/gpio-pxa.h new file mode 100644 index 00000000000..b6390beff32 --- /dev/null +++ b/arch/arm/plat-pxa/include/plat/gpio-pxa.h @@ -0,0 +1,44 @@ +#ifndef __PLAT_PXA_GPIO_H +#define __PLAT_PXA_GPIO_H + +struct irq_data; + +/* + * We handle the GPIOs by banks, each bank covers up to 32 GPIOs with + * one set of registers. The register offsets are organized below: + * + * GPLR GPDR GPSR GPCR GRER GFER GEDR + * BANK 0 - 0x0000 0x000C 0x0018 0x0024 0x0030 0x003C 0x0048 + * BANK 1 - 0x0004 0x0010 0x001C 0x0028 0x0034 0x0040 0x004C + * BANK 2 - 0x0008 0x0014 0x0020 0x002C 0x0038 0x0044 0x0050 + * + * BANK 3 - 0x0100 0x010C 0x0118 0x0124 0x0130 0x013C 0x0148 + * BANK 4 - 0x0104 0x0110 0x011C 0x0128 0x0134 0x0140 0x014C + * BANK 5 - 0x0108 0x0114 0x0120 0x012C 0x0138 0x0144 0x0150 + * + * NOTE: + * BANK 3 is only available on PXA27x and later processors. + * BANK 4 and 5 are only available on PXA935 + */ + +#define GPIO_BANK(n) (GPIO_REGS_VIRT + BANK_OFF(n)) + +#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 + +/* NOTE: some PXAs have fewer on-chip GPIOs (like PXA255, with 85). + * Those cases currently cause holes in the GPIO number space, the + * actual number of the last GPIO is recorded by 'pxa_last_gpio'. + */ +extern int pxa_last_gpio; + +typedef int (*set_wake_t)(struct irq_data *d, unsigned int on); + +extern void pxa_init_gpio(int mux_irq, int start, int end, set_wake_t fn); + +#endif /* __PLAT_PXA_GPIO_H */ |