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authorHamish Guthrie <hcg@openwrt.org>2007-05-28 13:47:22 +0000
committerHamish Guthrie <hcg@openwrt.org>2007-05-28 13:47:22 +0000
commite83486ab596a8b0a5e33056826613ef99766b85e (patch)
treeab713ff88f9163252952acd232147a400f4793af
parentb8434b0722ea826ca41e74cdbec301e1dcb353fd (diff)
downloadupstream-e83486ab596a8b0a5e33056826613ef99766b85e.tar.gz
upstream-e83486ab596a8b0a5e33056826613ef99766b85e.tar.bz2
upstream-e83486ab596a8b0a5e33056826613ef99766b85e.zip
userspace gpio driver for .21
SVN-Revision: 7368
-rw-r--r--target/linux/at91-2.6/patches/003-gpio-driver.patch62
1 files changed, 30 insertions, 32 deletions
diff --git a/target/linux/at91-2.6/patches/003-gpio-driver.patch b/target/linux/at91-2.6/patches/003-gpio-driver.patch
index c14542acc6..aa5a2e32e1 100644
--- a/target/linux/at91-2.6/patches/003-gpio-driver.patch
+++ b/target/linux/at91-2.6/patches/003-gpio-driver.patch
@@ -1,16 +1,28 @@
-diff -urN linux-2.6.19.2.old/arch/arm/mach-at91rm9200/gpio.c linux-2.6.19.2/arch/arm/mach-at91rm9200/gpio.c
---- linux-2.6.19.2.old/arch/arm/mach-at91rm9200/gpio.c 2007-03-06 22:49:37.000000000 +0100
-+++ linux-2.6.19.2/arch/arm/mach-at91rm9200/gpio.c 2007-03-07 10:25:41.000000000 +0100
-@@ -28,7 +28,7 @@
+--- linux-2.6.21.1.orig/arch/arm/mach-at91/gpio.c 2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1/arch/arm/mach-at91/gpio.c 2007-05-28 15:30:48.000000000 +0200
+@@ -27,6 +27,7 @@
static struct at91_gpio_bank *gpio;
static int gpio_banks;
--
+static u32 pio_gpio_pin[4] = { 0, 0, 0, 0 };
+
static inline void __iomem *pin_to_controller(unsigned pin)
+@@ -71,9 +72,13 @@
{
-@@ -113,10 +113,13 @@
+ void __iomem *pio = pin_to_controller(pin);
+ unsigned mask = pin_to_mask(pin);
++ int bank = (pin - PIN_BASE) / 32;
+
+ if (!pio)
+ return -EINVAL;
++
++ pio_gpio_pin[bank] |= mask;
++
+ __raw_writel(mask, pio + PIO_IDR);
+ __raw_writel(mask, pio + (use_pullup ? PIO_PUER : PIO_PUDR));
+ __raw_writel(mask, pio + PIO_PER);
+@@ -130,10 +135,13 @@
{
void __iomem *pio = pin_to_controller(pin);
unsigned mask = pin_to_mask(pin);
@@ -24,7 +36,7 @@ diff -urN linux-2.6.19.2.old/arch/arm/mach-at91rm9200/gpio.c linux-2.6.19.2/arch
__raw_writel(mask, pio + PIO_IDR);
__raw_writel(mask, pio + (use_pullup ? PIO_PUER : PIO_PUDR));
__raw_writel(mask, pio + PIO_ODR);
-@@ -134,10 +137,13 @@
+@@ -151,10 +159,13 @@
{
void __iomem *pio = pin_to_controller(pin);
unsigned mask = pin_to_mask(pin);
@@ -38,7 +50,7 @@ diff -urN linux-2.6.19.2.old/arch/arm/mach-at91rm9200/gpio.c linux-2.6.19.2/arch
__raw_writel(mask, pio + PIO_IDR);
__raw_writel(mask, pio + PIO_PUDR);
__raw_writel(mask, pio + (value ? PIO_SODR : PIO_CODR));
-@@ -214,6 +220,18 @@
+@@ -262,6 +273,18 @@
}
EXPORT_SYMBOL(at91_get_gpio_value);
@@ -57,10 +69,9 @@ diff -urN linux-2.6.19.2.old/arch/arm/mach-at91rm9200/gpio.c linux-2.6.19.2/arch
/*--------------------------------------------------------------------------*/
#ifdef CONFIG_PM
-diff -urN linux-2.6.19.2.old/drivers/char/Kconfig linux-2.6.19.2/drivers/char/Kconfig
---- linux-2.6.19.2.old/drivers/char/Kconfig 2007-03-06 22:49:37.000000000 +0100
-+++ linux-2.6.19.2/drivers/char/Kconfig 2007-03-07 01:08:57.000000000 +0100
-@@ -1064,5 +1064,12 @@
+--- linux-2.6.21.1.orig/drivers/char/Kconfig 2007-05-28 12:22:29.000000000 +0200
++++ linux-2.6.21.1/drivers/char/Kconfig 2007-05-28 15:37:43.000000000 +0200
+@@ -1087,5 +1087,12 @@
The SPI driver gives user mode access to this serial
bus on the AT91RM9200 processor.
@@ -69,24 +80,22 @@ diff -urN linux-2.6.19.2.old/drivers/char/Kconfig linux-2.6.19.2/drivers/char/Kc
+ depends on ARCH_AT91RM9200 && MACH_VLINK
+ default n
+ help
-+ Provides a handler for LED and GPIO in userspace
++ Provides a handler GPIO's in userspace
+
endmenu
-diff -urN linux-2.6.19.2.old/drivers/char/Makefile linux-2.6.19.2/drivers/char/Makefile
---- linux-2.6.19.2.old/drivers/char/Makefile 2007-03-06 22:49:37.000000000 +0100
-+++ linux-2.6.19.2/drivers/char/Makefile 2007-03-07 01:08:05.000000000 +0100
-@@ -92,6 +92,7 @@
+--- linux-2.6.21.1.orig/drivers/char/Makefile 2007-05-28 12:22:29.000000000 +0200
++++ linux-2.6.21.1/drivers/char/Makefile 2007-05-28 15:38:11.000000000 +0200
+@@ -95,6 +95,7 @@
obj-$(CONFIG_TELCLOCK) += tlclk.o
obj-$(CONFIG_AT91_SPI) += at91_spi.o
obj-$(CONFIG_AT91_SPIDEV) += at91_spidev.o
-+obj-$(CONFIG_AT91_VLIO) += vlink_giu.o
++obj-$(CONFIG_AT91_VLIO) += vlink_giu.o
obj-$(CONFIG_WATCHDOG) += watchdog/
obj-$(CONFIG_MWAVE) += mwave/
-diff -urN linux-2.6.19.2.old/drivers/char/vlink_giu.c linux-2.6.19.2/drivers/char/vlink_giu.c
---- linux-2.6.19.2.old/drivers/char/vlink_giu.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.19.2/drivers/char/vlink_giu.c 2007-03-07 01:21:21.000000000 +0100
+--- linux-2.6.21.1.orig/drivers/char/vlink_giu.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21.1/drivers/char/vlink_giu.c 2007-05-28 15:39:47.000000000 +0200
@@ -0,0 +1,256 @@
+/*
+ * Driver for FDL Versalink GPIO
@@ -344,14 +353,3 @@ diff -urN linux-2.6.19.2.old/drivers/char/vlink_giu.c linux-2.6.19.2/drivers/cha
+MODULE_AUTHOR("Hamish Guthrie <hamish@prodigi.ch>");
+MODULE_DESCRIPTION("FDL Versalink GPIO Driver");
+MODULE_LICENSE("GPL");
-diff -urN linux-2.6.19.2.old/include/asm-arm/arch-at91rm9200/gpio.h linux-2.6.19.2/include/asm-arm/arch-at91rm9200/gpio.h
---- linux-2.6.19.2.old/include/asm-arm/arch-at91rm9200/gpio.h 2007-01-10 20:10:37.000000000 +0100
-+++ linux-2.6.19.2/include/asm-arm/arch-at91rm9200/gpio.h 2007-03-07 01:17:23.000000000 +0100
-@@ -189,6 +189,7 @@
- /* callable at any time */
- extern int at91_set_gpio_value(unsigned pin, int value);
- extern int at91_get_gpio_value(unsigned pin);
-+extern int at91_is_pin_gpio(unsigned pin);
-
- /* callable only from core power-management code */
- extern void at91_gpio_suspend(void);