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authorGabor Juhos <juhosg@openwrt.org>2012-03-12 17:32:39 +0000
committerGabor Juhos <juhosg@openwrt.org>2012-03-12 17:32:39 +0000
commitb0bb0793b9bf20611f5347d74c802b40da05cb93 (patch)
treef8fd31e6ff4ea626984731cdd70721f860ec22f8 /target/linux/ar71xx/patches-3.2
parent727a8c20c042cfa7958b4abdb7505520862dbb13 (diff)
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ar71xx: enable UART function for early_printk/console
SVN-Revision: 30909
Diffstat (limited to 'target/linux/ar71xx/patches-3.2')
-rw-r--r--target/linux/ar71xx/patches-3.2/520-MIPS-ath79-enable-UART-function.patch18
-rw-r--r--target/linux/ar71xx/patches-3.2/521-MIPS-ath79-enable-UART-for-early_serial.patch61
2 files changed, 79 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.2/520-MIPS-ath79-enable-UART-function.patch b/target/linux/ar71xx/patches-3.2/520-MIPS-ath79-enable-UART-function.patch
new file mode 100644
index 0000000000..1cb407f833
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.2/520-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-3.2/521-MIPS-ath79-enable-UART-for-early_serial.patch b/target/linux/ar71xx/patches-3.2/521-MIPS-ath79-enable-UART-for-early_serial.patch
new file mode 100644
index 0000000000..b96ea3ae58
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.2/521-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)