diff options
| author | Rabin Vincent <rabin.vincent@stericsson.com> | 2010-03-03 06:46:58 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-19 21:29:31 +0300 |
| commit | 3a5e854e09b77c49c8030c7dfd3a3f506571a89a (patch) | |
| tree | 3efcf9333a06e63119cf873f11f724adb3f6041b /arch/arm/plat-nomadik/include | |
| parent | 39710479303fd3affb3e204e9a7a75cc676977b5 (diff) | |
| download | linux-3a5e854e09b77c49c8030c7dfd3a3f506571a89a.tar.xz | |
ARM: 5969/1: nomadik: move gpio to plat-nomadik
Move the Nomadik GPIO driver to plat-nomadik so that it can also be used
on the Ux500 platform.
The mach-nomadik include/mach/gpio.h is replaced by one that includes
the one now in plat-nomadik, so that code doesn't need to include the
one in plat specifically, and can instead use <linux/gpio.h> as usual.
Acked-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-nomadik/include')
| -rw-r--r-- | arch/arm/plat-nomadik/include/plat/gpio.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/arm/plat-nomadik/include/plat/gpio.h b/arch/arm/plat-nomadik/include/plat/gpio.h new file mode 100644 index 000000000000..1d665a0abb87 --- /dev/null +++ b/arch/arm/plat-nomadik/include/plat/gpio.h @@ -0,0 +1,71 @@ +/* + * Structures and registers for GPIO access in the Nomadik SoC + * + * Copyright (C) 2008 STMicroelectronics + * Author: Prafulla WADASKAR <prafulla.wadaskar@st.com> + * Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_PLAT_GPIO_H +#define __ASM_PLAT_GPIO_H + +#include <asm-generic/gpio.h> + +/* + * These currently cause a function call to happen, they may be optimized + * if needed by adding cpu-specific defines to identify blocks + * (see mach-pxa/include/mach/gpio.h as an example using GPLR etc) + */ +#define gpio_get_value __gpio_get_value +#define gpio_set_value __gpio_set_value +#define gpio_cansleep __gpio_cansleep +#define gpio_to_irq __gpio_to_irq + +/* + * "nmk_gpio" and "NMK_GPIO" stand for "Nomadik GPIO", leaving + * the "gpio" namespace for generic and cross-machine functions + */ + +/* Register in the logic block */ +#define NMK_GPIO_DAT 0x00 +#define NMK_GPIO_DATS 0x04 +#define NMK_GPIO_DATC 0x08 +#define NMK_GPIO_PDIS 0x0c +#define NMK_GPIO_DIR 0x10 +#define NMK_GPIO_DIRS 0x14 +#define NMK_GPIO_DIRC 0x18 +#define NMK_GPIO_SLPC 0x1c +#define NMK_GPIO_AFSLA 0x20 +#define NMK_GPIO_AFSLB 0x24 + +#define NMK_GPIO_RIMSC 0x40 +#define NMK_GPIO_FIMSC 0x44 +#define NMK_GPIO_IS 0x48 +#define NMK_GPIO_IC 0x4c +#define NMK_GPIO_RWIMSC 0x50 +#define NMK_GPIO_FWIMSC 0x54 +#define NMK_GPIO_WKS 0x58 + +/* Alternate functions: function C is set in hw by setting both A and B */ +#define NMK_GPIO_ALT_GPIO 0 +#define NMK_GPIO_ALT_A 1 +#define NMK_GPIO_ALT_B 2 +#define NMK_GPIO_ALT_C (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B) + +extern int nmk_gpio_set_mode(int gpio, int gpio_mode); +extern int nmk_gpio_get_mode(int gpio); + +/* + * Platform data to register a block: only the initial gpio/irq number. + */ +struct nmk_gpio_platform_data { + char *name; + int first_gpio; + int first_irq; + int parent_irq; +}; + +#endif /* __ASM_PLAT_GPIO_H */ |