mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-05 18:44:05 +02:00
05457f7a34
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14262 3c298f89-4303-0410-b956-a3cf2f4a3e73
126 lines
2.8 KiB
Diff
126 lines
2.8 KiB
Diff
--- a/arch/arm/mach-ixp4xx/common.c
|
|
+++ b/arch/arm/mach-ixp4xx/common.c
|
|
@@ -36,6 +36,7 @@
|
|
#include <asm/pgtable.h>
|
|
#include <asm/page.h>
|
|
#include <asm/irq.h>
|
|
+#include <asm/gpio.h>
|
|
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/irq.h>
|
|
@@ -374,12 +375,39 @@ static struct platform_device *ixp46x_de
|
|
unsigned long ixp4xx_exp_bus_size;
|
|
EXPORT_SYMBOL(ixp4xx_exp_bus_size);
|
|
|
|
+static int ixp4xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
|
|
+{
|
|
+ gpio_line_config(gpio, IXP4XX_GPIO_IN);
|
|
+ return 0;
|
|
+}
|
|
+EXPORT_SYMBOL(ixp4xx_gpio_direction_input);
|
|
+
|
|
+static int ixp4xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level)
|
|
+{
|
|
+ gpio_line_set(gpio, level);
|
|
+ gpio_line_config(gpio, IXP4XX_GPIO_OUT);
|
|
+ return 0;
|
|
+}
|
|
+EXPORT_SYMBOL(ixp4xx_gpio_direction_output);
|
|
+
|
|
+static struct gpio_chip ixp4xx_gpio_chip = {
|
|
+ .label = "IXP4XX_GPIO_CHIP",
|
|
+ .direction_input = ixp4xx_gpio_direction_input,
|
|
+ .direction_output = ixp4xx_gpio_direction_output,
|
|
+ .get = gpio_get_value,
|
|
+ .set = gpio_set_value,
|
|
+ .base = 0,
|
|
+ .ngpio = 16,
|
|
+};
|
|
+
|
|
void __init ixp4xx_sys_init(void)
|
|
{
|
|
ixp4xx_exp_bus_size = SZ_16M;
|
|
|
|
platform_add_devices(ixp4xx_devices, ARRAY_SIZE(ixp4xx_devices));
|
|
|
|
+ gpiochip_add(&ixp4xx_gpio_chip);
|
|
+
|
|
if (cpu_is_ixp46x()) {
|
|
int region;
|
|
|
|
--- a/arch/arm/Kconfig
|
|
+++ b/arch/arm/Kconfig
|
|
@@ -355,6 +355,7 @@ config ARCH_IXP4XX
|
|
select GENERIC_GPIO
|
|
select GENERIC_TIME
|
|
select GENERIC_CLOCKEVENTS
|
|
+ select ARCH_REQUIRE_GPIOLIB
|
|
select DMABOUNCE if PCI
|
|
help
|
|
Support for Intel's IXP4XX (XScale) family of processors.
|
|
--- a/arch/arm/mach-ixp4xx/include/mach/gpio.h
|
|
+++ b/arch/arm/mach-ixp4xx/include/mach/gpio.h
|
|
@@ -27,47 +27,31 @@
|
|
|
|
#include <linux/kernel.h>
|
|
#include <mach/hardware.h>
|
|
+#include <asm-generic/gpio.h> /* cansleep wrappers */
|
|
|
|
-static inline int gpio_request(unsigned gpio, const char *label)
|
|
-{
|
|
- return 0;
|
|
-}
|
|
-
|
|
-static inline void gpio_free(unsigned gpio)
|
|
-{
|
|
- might_sleep();
|
|
-
|
|
- return;
|
|
-}
|
|
-
|
|
-static inline int gpio_direction_input(unsigned gpio)
|
|
-{
|
|
- gpio_line_config(gpio, IXP4XX_GPIO_IN);
|
|
- return 0;
|
|
-}
|
|
-
|
|
-static inline int gpio_direction_output(unsigned gpio, int level)
|
|
-{
|
|
- gpio_line_set(gpio, level);
|
|
- gpio_line_config(gpio, IXP4XX_GPIO_OUT);
|
|
- return 0;
|
|
-}
|
|
+#define NR_BUILTIN_GPIO 16
|
|
|
|
static inline int gpio_get_value(unsigned gpio)
|
|
{
|
|
- int value;
|
|
-
|
|
- gpio_line_get(gpio, &value);
|
|
-
|
|
- return value;
|
|
+ if (gpio < NR_BUILTIN_GPIO)
|
|
+ {
|
|
+ int value;
|
|
+ gpio_line_get(gpio, &value);
|
|
+ return value;
|
|
+ }
|
|
+ else
|
|
+ return __gpio_get_value(gpio);
|
|
}
|
|
|
|
static inline void gpio_set_value(unsigned gpio, int value)
|
|
{
|
|
- gpio_line_set(gpio, value);
|
|
+ if (gpio < NR_BUILTIN_GPIO)
|
|
+ gpio_line_set(gpio, value);
|
|
+ else
|
|
+ __gpio_set_value(gpio, value);
|
|
}
|
|
|
|
-#include <asm-generic/gpio.h> /* cansleep wrappers */
|
|
+#define gpio_cansleep __gpio_cansleep
|
|
|
|
extern int gpio_to_irq(int gpio);
|
|
extern int irq_to_gpio(int gpio);
|