ar71xx: add support for linux 4.4

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48563

1 files changed, 39 insertions, 0 deletions

diff --git a/target/linux/ar71xx/patches-4.4/505-MIPS-ath79-add-ath79_gpio_function_select.patch b/target/linux/ar71xx/patches-4.4/505-MIPS-ath79-add-ath79_gpio_function_select.patch
new file mode 100644
index 0000000000..3adb088d52
--- /dev/null
+++ b/target/linux/ar71xx/patches-4.4/505-MIPS-ath79-add-ath79_gpio_function_select.patch
@@ -0,0 +1,39 @@
+--- a/arch/mips/ath79/common.h
++++ b/arch/mips/ath79/common.h
+@@ -28,6 +28,7 @@ void ath79_ddr_wb_flush(unsigned int reg
+ void ath79_gpio_function_enable(u32 mask);
+ void ath79_gpio_function_disable(u32 mask);
+ void ath79_gpio_function_setup(u32 set, u32 clear);
++void ath79_gpio_output_select(unsigned gpio, u8 val);
+ void ath79_gpio_init(void);
+ 
+ #endif /* __ATH79_COMMON_H */
+--- a/arch/mips/ath79/gpio.c
++++ b/arch/mips/ath79/gpio.c
+@@ -57,3 +57,26 @@ void ath79_gpio_function_disable(u32 mas
+ {
+ 	ath79_gpio_function_setup(0, mask);
+ }
++
++void __init ath79_gpio_output_select(unsigned gpio, u8 val)
++{
++	void __iomem *base = ath79_gpio_base;
++	unsigned int reg;
++	u32 t, s;
++
++	BUG_ON(!soc_is_ar934x());
++
++	if (gpio >= AR934X_GPIO_COUNT)
++		return;
++
++	reg = AR934X_GPIO_REG_OUT_FUNC0 + 4 * (gpio / 4);
++	s = 8 * (gpio % 4);
++
++	t = __raw_readl(base + reg);
++	t &= ~(0xff << s);
++	t |= val << s;
++	__raw_writel(t, base + reg);
++
++	/* flush write */
++	(void) __raw_readl(base + reg);
++}