[etrax] Implement sysfs interface for some specific cris driver

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17805 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 126 insertions, 0 deletions

diff --git a/target/linux/etrax/patches-2.6.30/600-create-device-serial.patch b/target/linux/etrax/patches-2.6.30/600-create-device-serial.patch
new file mode 100644
index 0000000000..516b98471f
--- /dev/null
+++ b/target/linux/etrax/patches-2.6.30/600-create-device-serial.patch
@@ -0,0 +1,44 @@
+--- a/drivers/serial/crisv10.c
++++ b/drivers/serial/crisv10.c
+@@ -31,6 +31,7 @@ static char *serial_version = "$Revision
+ #include <linux/module.h>
+ #include <linux/uaccess.h>
+ #include <linux/io.h>
++#include <linux/device.h>
+ 
+ #include <asm/irq.h>
+ #include <asm/dma.h>
+@@ -4414,6 +4415,8 @@ static const struct tty_operations rs_op
+ #endif
+ };
+ 
++static struct class *rs_class;
++
+ static int __init rs_init(void)
+ {
+ 	int i;
+@@ -4547,6 +4550,24 @@ static int __init rs_init(void)
+ #endif
+ #endif /* CONFIG_SVINTO_SIM */
+ 
++	rs_class = class_create(THIS_MODULE, "rs_tty");
++#ifdef CONFIG_ETRAX_SERIAL_PORT0 
++	device_create(rs_class, NULL,
++		MKDEV(TTY_MAJOR, 64), NULL, "ttyS0");
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT1 
++	device_create(rs_class, NULL,
++		MKDEV(TTY_MAJOR, 65), NULL, "ttyS1");
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT2 
++	device_create(rs_class, NULL,
++		MKDEV(TTY_MAJOR, 66), NULL, "ttyS2");
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT3 
++	device_create(rs_class, NULL,
++		MKDEV(TTY_MAJOR, 67), NULL, "ttyS3");
++#endif
++
+ 	return 0;
+ }
+ 
diff --git a/target/linux/etrax/patches-2.6.30/610-create-the-gpio-devices.patch b/target/linux/etrax/patches-2.6.30/610-create-the-gpio-devices.patch
new file mode 100644
index 0000000000..27e13c2baf
--- /dev/null
+++ b/target/linux/etrax/patches-2.6.30/610-create-the-gpio-devices.patch
@@ -0,0 +1,50 @@
+--- a/arch/cris/arch-v10/drivers/gpio.c
++++ b/arch/cris/arch-v10/drivers/gpio.c
+@@ -21,6 +21,7 @@
+ #include <linux/poll.h>
+ #include <linux/init.h>
+ #include <linux/interrupt.h>
++#include <linux/device.h>
+ 
+ #include <asm/etraxgpio.h>
+ #include <arch/svinto.h>
+@@ -771,6 +772,8 @@ static void ioif_watcher(const unsigned 
+ 
+ /* main driver initialization routine, called from mem.c */
+ 
++static struct class *gp_class;
++
+ static int __init gpio_init(void)
+ {
+ 	int res;
+@@ -784,6 +787,8 @@ static int __init gpio_init(void)
+ 		return res;
+ 	}
+ 
++	gp_class = class_create(THIS_MODULE, "gpio_etrax");
++
+ 	/* Clear all leds */
+ #if defined (CONFIG_ETRAX_CSP0_LEDS) ||  defined (CONFIG_ETRAX_PA_LEDS) || defined (CONFIG_ETRAX_PB_LEDS)
+ 	CRIS_LED_NETWORK_SET(0);
+@@ -796,6 +801,8 @@ static int __init gpio_init(void)
+ 		CRIS_LED_BIT_SET(i);
+ #endif
+ 
++	device_create(gp_class, NULL,
++		MKDEV(GPIO_MAJOR, 2), NULL, "leds");
+ #endif
+ 	/* The I/O interface allocation watcher will be called when
+ 	 * registering it. */
+@@ -822,6 +829,12 @@ static int __init gpio_init(void)
+ 	if (res)
+ 		printk(KERN_CRIT "err: PA irq for gpio\n");
+ 
++	device_create(gp_class, NULL,
++		MKDEV(GPIO_MAJOR, 0), NULL, "gpioa");
++	device_create(gp_class, NULL,
++		MKDEV(GPIO_MAJOR, 1), NULL, "gpiob");
++	device_create(gp_class, NULL,
++		MKDEV(GPIO_MAJOR, 3), NULL, "gpiog");
+ 	return res;
+ }
+ 
diff --git a/target/linux/etrax/patches-2.6.30/620-create-the-i2c-devices.patch b/target/linux/etrax/patches-2.6.30/620-create-the-i2c-devices.patch
new file mode 100644
index 0000000000..9c2e37ae98
--- /dev/null
+++ b/target/linux/etrax/patches-2.6.30/620-create-the-i2c-devices.patch
@@ -0,0 +1,32 @@
+--- a/arch/cris/arch-v10/drivers/i2c.c
++++ b/arch/cris/arch-v10/drivers/i2c.c
+@@ -21,6 +21,7 @@
+ #include <linux/fs.h>
+ #include <linux/string.h>
+ #include <linux/init.h>
++#include <linux/device.h>
+ 
+ #include <asm/etraxi2c.h>
+ 
+@@ -678,6 +679,8 @@ i2c_init(void)
+ 	return res;
+ }
+ 
++static struct class *i2c_class;
++
+ static int __init
+ i2c_register(void)
+ {
+@@ -693,7 +696,11 @@ i2c_register(void)
+ 	}
+ 
+ 	printk(KERN_INFO "I2C driver v2.2, (c) 1999-2004 Axis Communications AB\n");
+-	
++
++	i2c_class = class_create(THIS_MODULE, "i2c_etrax");
++	device_create(i2c_class, NULL,
++		MKDEV(I2C_MAJOR, 0), NULL, "i2c");
++
+ 	return 0;
+ }
+