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diff -Nru linux-2.6.26-officiel/drivers/char/Kconfig /home/guilig/workspace/kernel-goobie-2.6.26/src/drivers/char/Kconfig
--- linux-2.6.26-officiel/drivers/char/Kconfig 2008-07-13 23:51:29.000000000 +0200
+++ /home/guilig/workspace/kernel-goobie-2.6.26/src/drivers/char/Kconfig 2008-09-26 14:44:59.000000000 +0200
@@ -1006,6 +1006,14 @@
tristate "NEC VR4100 series General-purpose I/O Unit support"
depends on CPU_VR41XX
+config GPIO_MPC8313
+ tristate "mpc8313e gpio"
+ depends on PPC_MPC831x
+ select INPUT
+ default y
+ help
+ test
+
config RAW_DRIVER
tristate "RAW driver (/dev/raw/rawN)"
depends on BLOCK
diff -Nru linux-2.6.26-officiel/drivers/char/Makefile /home/guilig/workspace/kernel-goobie-2.6.26/src/drivers/char/Makefile
--- linux-2.6.26-officiel/drivers/char/Makefile 2008-07-13 23:51:29.000000000 +0200
+++ /home/guilig/workspace/kernel-goobie-2.6.26/src/drivers/char/Makefile 2008-09-26 14:44:59.000000000 +0200
@@ -111,6 +111,8 @@
obj-$(CONFIG_PS3_FLASH) += ps3flash.o
obj-$(CONFIG_JS_RTC) += js-rtc.o
+
+obj-$(CONFIG_GPIO_MPC8313) += mpc8313e_gpio.o
js-rtc-y = rtc.o
# Files generated that shall be removed upon make clean
diff -Nru linux-2.6.26-officiel/drivers/char/mpc8313e_gpio.c /home/guilig/workspace/kernel-goobie-2.6.26/src/drivers/char/mpc8313e_gpio.c
--- linux-2.6.26-officiel/drivers/char/mpc8313e_gpio.c 1970-01-01 01:00:00.000000000 +0100
+++ /home/guilig/workspace/kernel-goobie-2.6.26/src/drivers/char/mpc8313e_gpio.c 2008-09-26 14:44:59.000000000 +0200
@@ -0,0 +1,127 @@
+/* linux/drivers/char/mpc8313e_gpio.c
+
+ Allows a user space process to control the GPIO pins.
+
+
+*/
+
+#include <linux/fs.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <linux/of_platform.h>
+#include <sysdev/fsl_soc.h>
+
+MODULE_AUTHOR("Alexandre Coffignal <alexandre.coffignal@cenosys.com>");
+MODULE_DESCRIPTION("mpc8313e GPIO");
+MODULE_LICENSE("GPL");
+
+static int major = 0;
+struct gpio {
+ __be32 gpdir;
+ __be32 gpodr;
+ __be32 gpdat;
+ __be32 gpier;
+ __be32 gpimr;
+ __be32 gpicr;
+} __attribute__ ((packed));
+static struct gpio *gpio_regs;
+
+static ssize_t mpc8313e_gpio_write(struct file *file, const char __user *data, size_t len, loff_t *ppos)
+{
+ unsigned m = iminor(file->f_path.dentry->d_inode);
+ size_t i;
+ int err = 0;
+
+ for (i = 0; i < len; ++i) {
+ char c;
+ if (get_user(c, data + i))
+ return -EFAULT;
+ /* set GPIO as output */
+ setbits32(&gpio_regs->gpdir, 1 << (31 - m));
+ clrbits32(&gpio_regs->gpodr, 1 << (31 - m));
+ switch (c) {
+ case '0':
+ /*Set GPIO level */
+ clrbits32(&gpio_regs->gpdat, 1 << (31 - m));
+ break;
+ case '1':
+ /*Set GPIO level */
+ setbits32(&gpio_regs->gpdat, 1 << (31 - m));
+ break;
+ default:
+ printk(KERN_DEBUG "io%2d bad setting: chr<0x%2x>\n",
+ m, (int)c);
+ err++;
+ }
+ }
+ if (err)
+ return -EINVAL;
+
+ return len;
+}
+
+static ssize_t mpc8313e_gpio_read(struct file *file, char __user * buf, size_t len, loff_t * ppos)
+{
+ unsigned m = iminor(file->f_path.dentry->d_inode);
+ int value;
+ value=in_be32(&gpio_regs->gpdat)&(1 << (31 - m));
+ if (value)
+ put_user(1, buf);
+ else
+ put_user(0, buf);
+
+ return 0;
+
+}
+
+static int mpc8313e_gpio_open(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static int mpc8313e_gpio_close(struct inode *inode, struct file *file)
+{
+ printk(KERN_DEBUG "close()\n");
+ return 0;
+}
+
+struct file_operations fops =
+{
+ .read = mpc8313e_gpio_read,
+ .write = mpc8313e_gpio_write,
+ .open = mpc8313e_gpio_open,
+ .release = mpc8313e_gpio_close /* correspond a close */
+};
+
+static int __init mpc8313e_gpio_init(void)
+{
+ int ret;
+
+ ret = register_chrdev(major, "gpio", &fops);
+ if(ret < 0)
+ {
+ printk(KERN_WARNING "Probleme sur le major\n");
+ return ret;
+ }
+
+ /* System I/O Configuration Register Low */
+ gpio_regs = ioremap(get_immrbase() + 0xc00, 0x20);
+ if (!gpio_regs)
+ return -ENOMEM;
+ return 0;
+
+}
+
+static void __exit mpc8313e_gpio_cleanup(void)
+{
+ unregister_chrdev(major, "gpio");
+}
+
+module_init(mpc8313e_gpio_init);
+module_exit(mpc8313e_gpio_cleanup);
+
+
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