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authorsfking@fdwdc.com <sfking@fdwdc.com>2009-06-19 18:11:05 -0700
committerGreg Ungerer <gerg@uclinux.org>2009-09-10 12:01:22 +1000
commit9e8ded166dcc7831ee6f31f8a0937cd9b58e83b0 (patch)
tree1cc871251322ea0c426ed084a5a2fef9906ae74d /arch/m68knommu/platform
parenta03ce7d9ef05e145ef706f99e68d5ffacf0ad325 (diff)
downloadop-kernel-dev-9e8ded166dcc7831ee6f31f8a0937cd9b58e83b0.zip
op-kernel-dev-9e8ded166dcc7831ee6f31f8a0937cd9b58e83b0.tar.gz
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/platform')
-rw-r--r--arch/m68knommu/platform/5249/Makefile2
-rw-r--r--arch/m68knommu/platform/5249/gpio.c65
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);
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