mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-14 14:59:42 +02:00
c6114b60db
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30454 3c298f89-4303-0410-b956-a3cf2f4a3e73
142 lines
3.6 KiB
Diff
142 lines
3.6 KiB
Diff
--- a/arch/arm/mach-cns3xxx/cns3420vb.c
|
|
+++ b/arch/arm/mach-cns3xxx/cns3420vb.c
|
|
@@ -215,7 +215,7 @@ static struct map_desc cns3420_io_desc[]
|
|
|
|
static void __init cns3420_map_io(void)
|
|
{
|
|
- cns3xxx_map_io();
|
|
+ cns3xxx_common_init();
|
|
iotable_init(cns3420_io_desc, ARRAY_SIZE(cns3420_io_desc));
|
|
|
|
cns3420_early_serial_setup();
|
|
--- a/arch/arm/mach-cns3xxx/core.c
|
|
+++ b/arch/arm/mach-cns3xxx/core.c
|
|
@@ -18,6 +18,7 @@
|
|
#include <asm/hardware/gic.h>
|
|
#include <asm/smp_twd.h>
|
|
#include <asm/hardware/cache-l2x0.h>
|
|
+#include <asm/gpio.h>
|
|
#include <mach/cns3xxx.h>
|
|
#include "core.h"
|
|
|
|
@@ -75,12 +76,96 @@ static struct map_desc cns3xxx_io_desc[]
|
|
},
|
|
};
|
|
|
|
-void __init cns3xxx_map_io(void)
|
|
+int gpio_to_irq(int gpio)
|
|
+{
|
|
+ if (gpio > 63)
|
|
+ return -EINVAL;
|
|
+
|
|
+ if (gpio < 32)
|
|
+ return IRQ_CNS3XXX_GPIOA;
|
|
+ else
|
|
+ return IRQ_CNS3XXX_GPIOB;
|
|
+}
|
|
+EXPORT_SYMBOL(gpio_to_irq);
|
|
+
|
|
+int irq2gpio(int irq)
|
|
+{
|
|
+ if (irq == IRQ_CNS3XXX_GPIOA)
|
|
+ return 0;
|
|
+ else if (irq == IRQ_CNS3XXX_GPIOB)
|
|
+ return 32;
|
|
+ else
|
|
+ return -EINVAL;
|
|
+}
|
|
+EXPORT_SYMBOL(irq2gpio);
|
|
+
|
|
+static inline void gpio_line_config(u8 line, u32 direction)
|
|
+{
|
|
+ u32 reg;
|
|
+ if (direction) {
|
|
+ if (line < 32) {
|
|
+ reg = __raw_readl(CNS3XXX_GPIOA_BASE_VIRT + CNS3XXX_GPIO_DIR);
|
|
+ reg |= (1 << line);
|
|
+ __raw_writel(reg, CNS3XXX_GPIOA_BASE_VIRT + CNS3XXX_GPIO_DIR);
|
|
+ } else {
|
|
+ reg = __raw_readl(CNS3XXX_GPIOB_BASE_VIRT + CNS3XXX_GPIO_DIR);
|
|
+ reg |= (1 << (line - 32));
|
|
+ __raw_writel(reg, CNS3XXX_GPIOB_BASE_VIRT + CNS3XXX_GPIO_DIR);
|
|
+ }
|
|
+ } else {
|
|
+ if (line < 32) {
|
|
+ reg = __raw_readl(CNS3XXX_GPIOA_BASE_VIRT + CNS3XXX_GPIO_DIR);
|
|
+ reg &= ~(1 << line);
|
|
+ __raw_writel(reg, CNS3XXX_GPIOA_BASE_VIRT + CNS3XXX_GPIO_DIR);
|
|
+ } else {
|
|
+ reg = __raw_readl(CNS3XXX_GPIOB_BASE_VIRT + CNS3XXX_GPIO_DIR);
|
|
+ reg &= ~(1 << (line - 32));
|
|
+ __raw_writel(reg, CNS3XXX_GPIOB_BASE_VIRT + CNS3XXX_GPIO_DIR);
|
|
+ }
|
|
+ }
|
|
+}
|
|
+
|
|
+static int cns3xxx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
|
|
+{
|
|
+ gpio_line_config(gpio, CNS3XXX_GPIO_IN);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int cns3xxx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level)
|
|
+{
|
|
+ gpio_line_set(gpio, level);
|
|
+ gpio_line_config(gpio, CNS3XXX_GPIO_OUT);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int cns3xxx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
|
|
+{
|
|
+ return gpio_get_value(gpio);
|
|
+}
|
|
+
|
|
+static void cns3xxx_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value)
|
|
+{
|
|
+ gpio_set_value(gpio, value);
|
|
+}
|
|
+
|
|
+static struct gpio_chip cns3xxx_gpio_chip = {
|
|
+ .label = "CNS3XXX_GPIO_CHIP",
|
|
+ .direction_input = cns3xxx_gpio_direction_input,
|
|
+ .direction_output = cns3xxx_gpio_direction_output,
|
|
+ .get = cns3xxx_gpio_get_value,
|
|
+ .set = cns3xxx_gpio_set_value,
|
|
+ .base = 0,
|
|
+ .ngpio = 64,
|
|
+};
|
|
+
|
|
+void __init cns3xxx_common_init(void)
|
|
{
|
|
#ifdef CONFIG_LOCAL_TIMERS
|
|
twd_base = (void __iomem *) CNS3XXX_TC11MP_TWD_BASE_VIRT;
|
|
#endif
|
|
iotable_init(cns3xxx_io_desc, ARRAY_SIZE(cns3xxx_io_desc));
|
|
+
|
|
+ gpiochip_add(&cns3xxx_gpio_chip);
|
|
}
|
|
|
|
/* used by entry-macro.S */
|
|
--- a/arch/arm/mach-cns3xxx/core.h
|
|
+++ b/arch/arm/mach-cns3xxx/core.h
|
|
@@ -20,7 +20,7 @@ void __init cns3xxx_l2x0_init(void);
|
|
static inline void cns3xxx_l2x0_init(void) {}
|
|
#endif /* CONFIG_CACHE_L2X0 */
|
|
|
|
-void __init cns3xxx_map_io(void);
|
|
+void __init cns3xxx_common_init(void);
|
|
void __init cns3xxx_init_irq(void);
|
|
void cns3xxx_power_off(void);
|
|
|
|
--- a/arch/arm/mach-cns3xxx/laguna.c
|
|
+++ b/arch/arm/mach-cns3xxx/laguna.c
|
|
@@ -611,7 +611,7 @@ static struct map_desc laguna_io_desc[]
|
|
|
|
static void __init laguna_map_io(void)
|
|
{
|
|
- cns3xxx_map_io();
|
|
+ cns3xxx_common_init();
|
|
iotable_init(laguna_io_desc, ARRAY_SIZE(laguna_io_desc));
|
|
laguna_early_serial_setup();
|
|
}
|