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ar71xx: fix GPIO function selection for AR934x

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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34275 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg 2012-11-20 14:27:17 +00:00
parent 6b16d348f4
commit c7dd26c292
6 changed files with 222 additions and 14 deletions
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106
target/linux/ar71xx/patches-3.3/212-MIPS-ath79-fix-GPIO-function-selection-for-AR934x-So.patch Normal file
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@ -0,0 +1,106 @@
From 177dc53a07e2c660d1c1a6cec4576c802325e330 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 14 Nov 2012 09:02:01 +0100
Subject: [PATCH] MIPS: ath79: fix GPIO function selection for AR934x SoCs
GPIO function selection is not working on the AR934x
SoCs because the offset of the function selection
register is different on those.
Add a helper routine which returns the correct
register address based on the SoC type, and use
that in the 'ath79_gpio_function_*' routines.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
arch/mips/ath79/gpio.c | 38 ++++++++++++++++--------
arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 2 ++
2 files changed, 28 insertions(+), 12 deletions(-)
--- a/arch/mips/ath79/gpio.c
+++ b/arch/mips/ath79/gpio.c
@@ -137,47 +137,61 @@ static struct gpio_chip ath79_gpio_chip
.base = 0,
};
+static void __iomem *ath79_gpio_get_function_reg(void)
+{
+ u32 reg = 0;
+
+ if (soc_is_ar71xx() ||
+ soc_is_ar724x() ||
+ soc_is_ar913x() ||
+ soc_is_ar933x())
+ reg = AR71XX_GPIO_REG_FUNC;
+ else if (soc_is_ar934x())
+ reg = AR934X_GPIO_REG_FUNC;
+ else
+ BUG();
+
+ return ath79_gpio_base + reg;
+}
+
void ath79_gpio_function_enable(u32 mask)
{
- void __iomem *base = ath79_gpio_base;
+ void __iomem *reg = ath79_gpio_get_function_reg();
unsigned long flags;
spin_lock_irqsave(&ath79_gpio_lock, flags);
- __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_FUNC) | mask,
- base + AR71XX_GPIO_REG_FUNC);
+ __raw_writel(__raw_readl(reg) | mask, reg);
/* flush write */
- __raw_readl(base + AR71XX_GPIO_REG_FUNC);
+ __raw_readl(reg);
spin_unlock_irqrestore(&ath79_gpio_lock, flags);
}
void ath79_gpio_function_disable(u32 mask)
{
- void __iomem *base = ath79_gpio_base;
+ void __iomem *reg = ath79_gpio_get_function_reg();
unsigned long flags;
spin_lock_irqsave(&ath79_gpio_lock, flags);
- __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_FUNC) & ~mask,
- base + AR71XX_GPIO_REG_FUNC);
+ __raw_writel(__raw_readl(reg) & ~mask, reg);
/* flush write */
- __raw_readl(base + AR71XX_GPIO_REG_FUNC);
+ __raw_readl(reg);
spin_unlock_irqrestore(&ath79_gpio_lock, flags);
}
void ath79_gpio_function_setup(u32 set, u32 clear)
{
- void __iomem *base = ath79_gpio_base;
+ void __iomem *reg = ath79_gpio_get_function_reg();
unsigned long flags;
spin_lock_irqsave(&ath79_gpio_lock, flags);
- __raw_writel((__raw_readl(base + AR71XX_GPIO_REG_FUNC) & ~clear) | set,
- base + AR71XX_GPIO_REG_FUNC);
+ __raw_writel((__raw_readl(reg) & ~clear) | set, reg);
/* flush write */
- __raw_readl(base + AR71XX_GPIO_REG_FUNC);
+ __raw_readl(reg);
spin_unlock_irqrestore(&ath79_gpio_lock, flags);
}
--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
@@ -520,6 +520,8 @@
#define AR71XX_GPIO_REG_INT_ENABLE 0x24
#define AR71XX_GPIO_REG_FUNC 0x28
+#define AR934X_GPIO_REG_FUNC 0x6c
+
#define AR71XX_GPIO_COUNT 16
#define AR724X_GPIO_COUNT 18
#define AR913X_GPIO_COUNT 22

2
target/linux/ar71xx/patches-3.3/505-MIPS-ath79-add-ath79_gpio_function_select.patch
View File

@ -10,7 +10,7 @@
#endif /* __ATH79_COMMON_H */
--- a/arch/mips/ath79/gpio.c
+++ b/arch/mips/ath79/gpio.c
@@ -184,6 +184,34 @@ void ath79_gpio_function_setup(u32 set,
@@ -198,6 +198,34 @@ void ath79_gpio_function_setup(u32 set,
spin_unlock_irqrestore(&ath79_gpio_lock, flags);
}

10
target/linux/ar71xx/patches-3.3/601-MIPS-ath79-add-more-register-defines.patch
View File

@ -153,7 +153,7 @@
#define AR933X_BOOTSTRAP_REF_CLK_40 BIT(0)
#define AR934X_BOOTSTRAP_SW_OPTION8 BIT(23)
@@ -520,6 +582,14 @@
@@ -520,6 +582,12 @@
#define AR71XX_GPIO_REG_INT_ENABLE 0x24
#define AR71XX_GPIO_REG_FUNC 0x28
@ -163,12 +163,10 @@
+#define AR934X_GPIO_REG_OUT_FUNC3 0x38
+#define AR934X_GPIO_REG_OUT_FUNC4 0x3c
+#define AR934X_GPIO_REG_OUT_FUNC5 0x40
+#define AR934X_GPIO_REG_FUNC 0x6c
+
#define AR934X_GPIO_REG_FUNC 0x6c
#define AR71XX_GPIO_COUNT 16
#define AR724X_GPIO_COUNT 18
#define AR913X_GPIO_COUNT 22
@@ -548,4 +618,133 @@
@@ -550,4 +618,133 @@
#define AR934X_SRIF_DPLL2_OUTDIV_SHIFT 13
#define AR934X_SRIF_DPLL2_OUTDIV_MASK 0x7

106
target/linux/ar71xx/patches-3.6/212-MIPS-ath79-fix-GPIO-function-selection-for-AR934x-So.patch Normal file
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@ -0,0 +1,106 @@
From 177dc53a07e2c660d1c1a6cec4576c802325e330 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 14 Nov 2012 09:02:01 +0100
Subject: [PATCH] MIPS: ath79: fix GPIO function selection for AR934x SoCs
GPIO function selection is not working on the AR934x
SoCs because the offset of the function selection
register is different on those.
Add a helper routine which returns the correct
register address based on the SoC type, and use
that in the 'ath79_gpio_function_*' routines.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
arch/mips/ath79/gpio.c | 38 ++++++++++++++++--------
arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 2 ++
2 files changed, 28 insertions(+), 12 deletions(-)
--- a/arch/mips/ath79/gpio.c
+++ b/arch/mips/ath79/gpio.c
@@ -137,47 +137,61 @@ static struct gpio_chip ath79_gpio_chip
.base = 0,
};
+static void __iomem *ath79_gpio_get_function_reg(void)
+{
+ u32 reg = 0;
+
+ if (soc_is_ar71xx() ||
+ soc_is_ar724x() ||
+ soc_is_ar913x() ||
+ soc_is_ar933x())
+ reg = AR71XX_GPIO_REG_FUNC;
+ else if (soc_is_ar934x())
+ reg = AR934X_GPIO_REG_FUNC;
+ else
+ BUG();
+
+ return ath79_gpio_base + reg;
+}
+
void ath79_gpio_function_enable(u32 mask)
{
- void __iomem *base = ath79_gpio_base;
+ void __iomem *reg = ath79_gpio_get_function_reg();
unsigned long flags;
spin_lock_irqsave(&ath79_gpio_lock, flags);
- __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_FUNC) | mask,
- base + AR71XX_GPIO_REG_FUNC);
+ __raw_writel(__raw_readl(reg) | mask, reg);
/* flush write */
- __raw_readl(base + AR71XX_GPIO_REG_FUNC);
+ __raw_readl(reg);
spin_unlock_irqrestore(&ath79_gpio_lock, flags);
}
void ath79_gpio_function_disable(u32 mask)
{
- void __iomem *base = ath79_gpio_base;
+ void __iomem *reg = ath79_gpio_get_function_reg();
unsigned long flags;
spin_lock_irqsave(&ath79_gpio_lock, flags);
- __raw_writel(__raw_readl(base + AR71XX_GPIO_REG_FUNC) & ~mask,
- base + AR71XX_GPIO_REG_FUNC);
+ __raw_writel(__raw_readl(reg) & ~mask, reg);
/* flush write */
- __raw_readl(base + AR71XX_GPIO_REG_FUNC);
+ __raw_readl(reg);
spin_unlock_irqrestore(&ath79_gpio_lock, flags);
}
void ath79_gpio_function_setup(u32 set, u32 clear)
{
- void __iomem *base = ath79_gpio_base;
+ void __iomem *reg = ath79_gpio_get_function_reg();
unsigned long flags;
spin_lock_irqsave(&ath79_gpio_lock, flags);
- __raw_writel((__raw_readl(base + AR71XX_GPIO_REG_FUNC) & ~clear) | set,
- base + AR71XX_GPIO_REG_FUNC);
+ __raw_writel((__raw_readl(reg) & ~clear) | set, reg);
/* flush write */
- __raw_readl(base + AR71XX_GPIO_REG_FUNC);
+ __raw_readl(reg);
spin_unlock_irqrestore(&ath79_gpio_lock, flags);
}
--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
@@ -520,6 +520,8 @@
#define AR71XX_GPIO_REG_INT_ENABLE 0x24
#define AR71XX_GPIO_REG_FUNC 0x28
+#define AR934X_GPIO_REG_FUNC 0x6c
+
#define AR71XX_GPIO_COUNT 16
#define AR7240_GPIO_COUNT 18
#define AR7241_GPIO_COUNT 20

2
target/linux/ar71xx/patches-3.6/505-MIPS-ath79-add-ath79_gpio_function_select.patch
View File

@ -10,7 +10,7 @@
#endif /* __ATH79_COMMON_H */
--- a/arch/mips/ath79/gpio.c
+++ b/arch/mips/ath79/gpio.c
@@ -184,6 +184,34 @@ void ath79_gpio_function_setup(u32 set,
@@ -198,6 +198,34 @@ void ath79_gpio_function_setup(u32 set,
spin_unlock_irqrestore(&ath79_gpio_lock, flags);
}

10
target/linux/ar71xx/patches-3.6/601-MIPS-ath79-add-more-register-defines.patch
View File

@ -153,7 +153,7 @@
#define AR933X_BOOTSTRAP_REF_CLK_40 BIT(0)
#define AR934X_BOOTSTRAP_SW_OPTION8 BIT(23)
@@ -520,6 +582,14 @@
@@ -520,6 +582,12 @@
#define AR71XX_GPIO_REG_INT_ENABLE 0x24
#define AR71XX_GPIO_REG_FUNC 0x28
@ -163,12 +163,10 @@
+#define AR934X_GPIO_REG_OUT_FUNC3 0x38
+#define AR934X_GPIO_REG_OUT_FUNC4 0x3c
+#define AR934X_GPIO_REG_OUT_FUNC5 0x40
+#define AR934X_GPIO_REG_FUNC 0x6c
+
#define AR934X_GPIO_REG_FUNC 0x6c
#define AR71XX_GPIO_COUNT 16
#define AR7240_GPIO_COUNT 18
#define AR7241_GPIO_COUNT 20
@@ -549,4 +619,133 @@
@@ -551,4 +619,133 @@
#define AR934X_SRIF_DPLL2_OUTDIV_SHIFT 13
#define AR934X_SRIF_DPLL2_OUTDIV_MASK 0x7