openwrtv3/target/linux/ar71xx/patches-4.9/739-MIPS-ath79-add-gpio-func-register-for-QCA955x-SoC.patch
Hauke Mehrtens 7bbf4117c6 ar71xx: Add kernel 4.9 support
This add support for kernel 4.9 to the ar71xx target.
It was compile tested with the generic, NAND and mikrotik subtarget.
Multiple members of the community tested it on their boards and did not
report any major problem so far.

Especially the NAND part received some changes to adapt to the new
kernel APIs. The serial driver hack used for the Arduino Yun was not
ported because the kernel changed there a lot.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-10-11 22:32:39 +02:00

38 lines
1.1 KiB
Diff

--- a/arch/mips/ath79/gpio.c
+++ b/arch/mips/ath79/gpio.c
@@ -33,6 +33,7 @@ static void __iomem *ath79_gpio_get_func
reg = AR71XX_GPIO_REG_FUNC;
else if (soc_is_ar934x() ||
soc_is_qca953x() ||
+ soc_is_qca955x() ||
soc_is_qca956x() ||
soc_is_tp9343())
reg = AR934X_GPIO_REG_FUNC;
@@ -64,15 +65,21 @@ void ath79_gpio_function_disable(u32 mas
void __init ath79_gpio_output_select(unsigned gpio, u8 val)
{
void __iomem *base = ath79_gpio_base;
- unsigned int reg;
+ unsigned int reg, reg_base;
u32 t, s;
- BUG_ON(!soc_is_ar934x() && !soc_is_qca953x() && !soc_is_qca956x());
-
- if (gpio >= AR934X_GPIO_COUNT)
- return;
+ if (soc_is_ar934x())
+ reg_base = AR934X_GPIO_REG_OUT_FUNC0;
+ else if (soc_is_qca953x())
+ reg_base = QCA953X_GPIO_REG_OUT_FUNC0;
+ else if (soc_is_qca955x())
+ reg_base = QCA955X_GPIO_REG_OUT_FUNC0;
+ else if (soc_is_qca956x())
+ reg_base = QCA956X_GPIO_REG_OUT_FUNC0;
+ else
+ BUG();
- reg = AR934X_GPIO_REG_OUT_FUNC0 + 4 * (gpio / 4);
+ reg = reg_base + 4 * (gpio / 4);
s = 8 * (gpio % 4);
t = __raw_readl(base + reg);