diff options
| author | sfking@fdwdc.com <sfking@fdwdc.com> | 2009-06-19 18:11:01 -0700 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2009-09-10 12:01:22 +1000 |
| commit | bc25b057fa0a0e4754b7e2524c509874649d11ae (patch) | |
| tree | 40770e923309ff514def91e8e9adcd6d71c4f81b | |
| parent | af39bb8b07af83b579c90c09ba3943123cdb4132 (diff) | |
generic GPIO support for the Freescale Coldfire 5206.
Add support for the 5206.
Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| -rw-r--r-- | arch/m68k/include/asm/m5206sim.h | 10 | ||||
| -rw-r--r-- | arch/m68knommu/platform/5206/Makefile | 2 | ||||
| -rw-r--r-- | arch/m68knommu/platform/5206/gpio.c | 49 |
3 files changed, 58 insertions, 3 deletions
diff --git a/arch/m68k/include/asm/m5206sim.h b/arch/m68k/include/asm/m5206sim.h index 7e3594dea88..7be8a2d3e65 100644 --- a/arch/m68k/include/asm/m5206sim.h +++ b/arch/m68k/include/asm/m5206sim.h @@ -85,10 +85,16 @@ #define MCFSIM_PAR 0xcb /* Pin Assignment reg (r/w) */ #endif -#define MCFSIM_PADDR 0x1c5 /* Parallel Direction (r/w) */ -#define MCFSIM_PADAT 0x1c9 /* Parallel Port Value (r/w) */ +#define MCFSIM_PADDR (MCF_MBAR + 0x1c5) /* Parallel Direction (r/w) */ +#define MCFSIM_PADAT (MCF_MBAR + 0x1c9) /* Parallel Port Value (r/w) */ /* + * Generic GPIO + */ +#define MCFGPIO_PIN_MAX 8 +#define MCFGPIO_IRQ_VECBASE -1 +#define MCFGPIO_IRQ_MAX -1 +/* * Some symbol defines for the Parallel Port Pin Assignment Register */ #ifdef CONFIG_M5206e diff --git a/arch/m68knommu/platform/5206/Makefile b/arch/m68knommu/platform/5206/Makefile index a439d9ab3f2..113c3339006 100644 --- a/arch/m68knommu/platform/5206/Makefile +++ b/arch/m68knommu/platform/5206/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/5206/gpio.c b/arch/m68knommu/platform/5206/gpio.c new file mode 100644 index 00000000000..60f779ce165 --- /dev/null +++ b/arch/m68knommu/platform/5206/gpio.c @@ -0,0 +1,49 @@ +/* + * 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 = "PP", + .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 = 8, + }, + .pddr = MCFSIM_PADDR, + .podr = MCFSIM_PADAT, + .ppdr = MCFSIM_PADAT, + }, +}; + +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); |