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| author | Gabor Juhos <juhosg@openwrt.org> | 2012-03-12 17:32:39 +0000 |
|---|---|---|
| committer | Gabor Juhos <juhosg@openwrt.org> | 2012-03-12 17:32:39 +0000 |
| commit | b0bb0793b9bf20611f5347d74c802b40da05cb93 (patch) | |
| tree | f8fd31e6ff4ea626984731cdd70721f860ec22f8 /target/linux/ar71xx/patches-3.3 | |
| parent | 727a8c20c042cfa7958b4abdb7505520862dbb13 (diff) | |
| download | upstream-b0bb0793b9bf20611f5347d74c802b40da05cb93.tar.gz upstream-b0bb0793b9bf20611f5347d74c802b40da05cb93.tar.bz2 upstream-b0bb0793b9bf20611f5347d74c802b40da05cb93.zip | |
ar71xx: enable UART function for early_printk/console
SVN-Revision: 30909
Diffstat (limited to 'target/linux/ar71xx/patches-3.3')
| -rw-r--r-- | target/linux/ar71xx/patches-3.3/520-MIPS-ath79-enable-UART-function.patch | 18 | ||||
| -rw-r--r-- | target/linux/ar71xx/patches-3.3/521-MIPS-ath79-enable-UART-for-early_serial.patch | 61 |
2 files changed, 79 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.3/520-MIPS-ath79-enable-UART-function.patch b/target/linux/ar71xx/patches-3.3/520-MIPS-ath79-enable-UART-function.patch new file mode 100644 index 0000000000..1cb407f833 --- /dev/null +++ b/target/linux/ar71xx/patches-3.3/520-MIPS-ath79-enable-UART-function.patch @@ -0,0 +1,18 @@ +--- a/arch/mips/ath79/dev-common.c ++++ b/arch/mips/ath79/dev-common.c +@@ -87,6 +87,15 @@ void __init ath79_register_uart(void) + if (IS_ERR(clk)) + panic("unable to get UART clock, err=%ld", PTR_ERR(clk)); + ++ if (soc_is_ar71xx()) ++ ath79_gpio_function_enable(AR71XX_GPIO_FUNC_UART_EN); ++ else if (soc_is_ar724x()) ++ ath79_gpio_function_enable(AR724X_GPIO_FUNC_UART_EN); ++ else if (soc_is_ar913x()) ++ ath79_gpio_function_enable(AR913X_GPIO_FUNC_UART_EN); ++ else if (soc_is_ar933x()) ++ ath79_gpio_function_enable(AR933X_GPIO_FUNC_UART_EN); ++ + if (soc_is_ar71xx() || + soc_is_ar724x() || + soc_is_ar913x() || diff --git a/target/linux/ar71xx/patches-3.3/521-MIPS-ath79-enable-UART-for-early_serial.patch b/target/linux/ar71xx/patches-3.3/521-MIPS-ath79-enable-UART-for-early_serial.patch new file mode 100644 index 0000000000..b96ea3ae58 --- /dev/null +++ b/target/linux/ar71xx/patches-3.3/521-MIPS-ath79-enable-UART-for-early_serial.patch @@ -0,0 +1,61 @@ +--- a/arch/mips/ath79/early_printk.c ++++ b/arch/mips/ath79/early_printk.c +@@ -56,6 +56,46 @@ static void prom_putchar_dummy(unsigned + /* nothing to do */ + } + ++static void prom_enable_uart(u32 id) ++{ ++ void __iomem *gpio_base; ++ u32 uart_en; ++ u32 t; ++ ++ switch (id) { ++ case REV_ID_MAJOR_AR71XX: ++ uart_en = AR71XX_GPIO_FUNC_UART_EN; ++ break; ++ ++ case REV_ID_MAJOR_AR7240: ++ case REV_ID_MAJOR_AR7241: ++ case REV_ID_MAJOR_AR7242: ++ uart_en = AR724X_GPIO_FUNC_UART_EN; ++ break; ++ ++ case REV_ID_MAJOR_AR913X: ++ uart_en = AR913X_GPIO_FUNC_UART_EN; ++ break; ++ ++ case REV_ID_MAJOR_AR9330: ++ case REV_ID_MAJOR_AR9331: ++ uart_en = AR933X_GPIO_FUNC_UART_EN; ++ break; ++ ++ case REV_ID_MAJOR_AR9341: ++ case REV_ID_MAJOR_AR9342: ++ case REV_ID_MAJOR_AR9344: ++ /* TODO */ ++ default: ++ return; ++ } ++ ++ gpio_base = (void __iomem *)(KSEG1ADDR(AR71XX_GPIO_BASE)); ++ t = __raw_readl(gpio_base + AR71XX_GPIO_REG_FUNC); ++ t |= uart_en; ++ __raw_writel(t, gpio_base + AR71XX_GPIO_REG_FUNC); ++} ++ + static void prom_putchar_init(void) + { + void __iomem *base; +@@ -84,8 +124,10 @@ static void prom_putchar_init(void) + + default: + _prom_putchar = prom_putchar_dummy; +- break; ++ return; + } ++ ++ prom_enable_uart(id); + } + + void prom_putchar(unsigned char ch) |