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author | sfking@fdwdc.com <sfking@fdwdc.com> | 2009-06-19 18:11:05 -0700 |
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committer | Greg Ungerer <gerg@uclinux.org> | 2009-09-10 12:01:22 +1000 |
commit | 9e8ded166dcc7831ee6f31f8a0937cd9b58e83b0 (patch) | |
tree | 1cc871251322ea0c426ed084a5a2fef9906ae74d /arch/m68knommu | |
parent | a03ce7d9ef05e145ef706f99e68d5ffacf0ad325 (diff) | |
download | kernel_samsung_tuna-9e8ded166dcc7831ee6f31f8a0937cd9b58e83b0.zip kernel_samsung_tuna-9e8ded166dcc7831ee6f31f8a0937cd9b58e83b0.tar.gz kernel_samsung_tuna-9e8ded166dcc7831ee6f31f8a0937cd9b58e83b0.tar.bz2 |
generic GPIO support for the Freescale Coldfire 5249.
Add support for the 5249.
Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68knommu')
-rw-r--r-- | arch/m68knommu/platform/5249/Makefile | 2 | ||||
-rw-r--r-- | arch/m68knommu/platform/5249/gpio.c | 65 |
2 files changed, 66 insertions, 1 deletions
diff --git a/arch/m68knommu/platform/5249/Makefile b/arch/m68knommu/platform/5249/Makefile index a439d9a..113c333 100644 --- a/arch/m68knommu/platform/5249/Makefile +++ b/arch/m68knommu/platform/5249/Makefile @@ -14,5 +14,5 @@ asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 -obj-y := config.o +obj-y := config.o gpio.o diff --git a/arch/m68knommu/platform/5249/gpio.c b/arch/m68knommu/platform/5249/gpio.c new file mode 100644 index 0000000..c611eab --- /dev/null +++ b/arch/m68knommu/platform/5249/gpio.c @@ -0,0 +1,65 @@ +/* + * Coldfire generic GPIO support + * + * (C) Copyright 2009, Steven King <sfking@fdwdc.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. +*/ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfgpio.h> + +static struct mcf_gpio_chip mcf_gpio_chips[] = { + { + .gpio_chip = { + .label = "GPIO0", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .ngpio = 32, + }, + .pddr = MCFSIM2_GPIOENABLE, + .podr = MCFSIM2_GPIOWRITE, + .ppdr = MCFSIM2_GPIOREAD, + }, + { + .gpio_chip = { + .label = "GPIO1", + .request = mcf_gpio_request, + .free = mcf_gpio_free, + .direction_input = mcf_gpio_direction_input, + .direction_output = mcf_gpio_direction_output, + .get = mcf_gpio_get_value, + .set = mcf_gpio_set_value, + .base = 32, + .ngpio = 32, + }, + .pddr = MCFSIM2_GPIO1ENABLE, + .podr = MCFSIM2_GPIO1WRITE, + .ppdr = MCFSIM2_GPIO1READ, + }, +}; + +static int __init mcf_gpio_init(void) +{ + unsigned i = 0; + while (i < ARRAY_SIZE(mcf_gpio_chips)) + (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]); + return 0; +} + +core_initcall(mcf_gpio_init); |