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| author | Gabor Juhos <juhosg@openwrt.org> | 2008-12-04 12:17:14 +0000 |
|---|---|---|
| committer | Gabor Juhos <juhosg@openwrt.org> | 2008-12-04 12:17:14 +0000 |
| commit | 4055fea1aae9e4166535b2823583dec40f9a2527 (patch) | |
| tree | 4b6466191ff1776aff3e048e2e704b0ebcc5fbfb | |
| parent | fbe5c883a094da580230677830488678e9cc03ce (diff) | |
| download | mtk-20170518-4055fea1aae9e4166535b2823583dec40f9a2527.zip mtk-20170518-4055fea1aae9e4166535b2823583dec40f9a2527.tar.gz mtk-20170518-4055fea1aae9e4166535b2823583dec40f9a2527.tar.bz2 | |
make all AR913x GPIO lines usable
SVN-Revision: 13509
3 files changed, 23 insertions, 2 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c b/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c index 03bf38b..a3d00ae 100644 --- a/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c +++ b/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c @@ -22,6 +22,9 @@ static DEFINE_SPINLOCK(ar71xx_gpio_lock); +unsigned long ar71xx_gpio_count; +EXPORT_SYMBOL(ar71xx_gpio_count); + void __ar71xx_gpio_set_value(unsigned gpio, int value) { unsigned long flags; @@ -129,6 +132,22 @@ void __init ar71xx_gpio_init(void) "AR71xx GPIO controller")) panic("cannot allocate AR71xx GPIO registers page"); + switch (ar71xx_soc) { + case AR71XX_SOC_AR7130: + case AR71XX_SOC_AR7141: + case AR71XX_SOC_AR7161: + ar71xx_gpio_chip.ngpio = AR71XX_GPIO_COUNT; + break; + + case AR71XX_SOC_AR9130: + case AR71XX_SOC_AR9132: + ar71xx_gpio_chip.ngpio = AR91XX_GPIO_COUNT; + break; + + default: + BUG(); + } + err = gpiochip_add(&ar71xx_gpio_chip); if (err) panic("cannot add AR71xx GPIO chip, error=%d", err); diff --git a/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h b/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h index 78cf1ca..5e551a1 100644 --- a/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h +++ b/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h @@ -206,6 +206,7 @@ extern void ar71xx_add_device_usb(void) __init; #define GPIO_FUNC_USB_CLK_EN BIT(0) #define AR71XX_GPIO_COUNT 16 +#define AR91XX_GPIO_COUNT 22 extern void __iomem *ar71xx_gpio_base; diff --git a/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h b/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h index 3477270..6354d68 100644 --- a/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h +++ b/target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h @@ -18,6 +18,7 @@ #include <asm/mach-ar71xx/ar71xx.h> +extern unsigned long ar71xx_gpio_count; extern void __ar71xx_gpio_set_value(unsigned gpio, int value); extern int __ar71xx_gpio_get_value(unsigned gpio); @@ -33,7 +34,7 @@ static inline int irq_to_gpio(unsigned irq) static inline int gpio_get_value(unsigned gpio) { - if (gpio < AR71XX_GPIO_COUNT) + if (gpio < ar71xx_gpio_count) return __ar71xx_gpio_get_value(gpio); return __gpio_get_value(gpio); @@ -41,7 +42,7 @@ static inline int gpio_get_value(unsigned gpio) static inline void gpio_set_value(unsigned gpio, int value) { - if (gpio < AR71XX_GPIO_COUNT) + if (gpio < ar71xx_gpio_count) __ar71xx_gpio_set_value(gpio, value); else __gpio_set_value(gpio, value); |