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-rw-r--r--target/linux/ramips/patches-4.3/0003-MIPS-ralink-cleanup-early_printk.patch66
1 files changed, 66 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-4.3/0003-MIPS-ralink-cleanup-early_printk.patch b/target/linux/ramips/patches-4.3/0003-MIPS-ralink-cleanup-early_printk.patch
new file mode 100644
index 0000000000..e2b2ba5e00
--- /dev/null
+++ b/target/linux/ramips/patches-4.3/0003-MIPS-ralink-cleanup-early_printk.patch
@@ -0,0 +1,66 @@
+From 4d805af8246efdc330d6af9a8bd10ce892327598 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Fri, 24 Jan 2014 17:01:17 +0100
+Subject: [PATCH 03/53] MIPS: ralink: cleanup early_printk
+
+Add support for the new MT7621/8 SoC and kill ifdefs.
+Cleanup some whitespace error while we are at it.
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/ralink/early_printk.c | 25 +++++++++++++++++++++++++
+ 1 file changed, 25 insertions(+)
+
+diff --git a/arch/mips/ralink/early_printk.c b/arch/mips/ralink/early_printk.c
+index 255d695..c04ee53 100644
+--- a/arch/mips/ralink/early_printk.c
++++ b/arch/mips/ralink/early_printk.c
+@@ -25,11 +25,13 @@
+ #define MT7628_CHIP_NAME1 0x20203832
+
+ #define UART_REG_TX 0x04
++#define UART_REG_LCR 0x0c
+ #define UART_REG_LSR 0x14
+ #define UART_REG_LSR_RT2880 0x1c
+
+ static __iomem void *uart_membase = (__iomem void *) KSEG1ADDR(EARLY_UART_BASE);
+ static __iomem void *chipid_membase = (__iomem void *) KSEG1ADDR(CHIPID_BASE);
++static int init_complete;
+
+ static inline void uart_w32(u32 val, unsigned reg)
+ {
+@@ -47,8 +49,31 @@ static inline int soc_is_mt7628(void)
+ (__raw_readl(chipid_membase) == MT7628_CHIP_NAME1);
+ }
+
++static inline void find_uart_base(void)
++{
++ int i;
++
++ if (!soc_is_mt7628())
++ return;
++
++ for (i = 0; i < 3; i++) {
++ u32 reg = uart_r32(UART_REG_LCR + (0x100 * i));
++
++ if (!reg)
++ continue;
++
++ uart_membase = (__iomem void *) KSEG1ADDR(EARLY_UART_BASE + (0x100 * i));
++ break;
++ }
++}
++
+ void prom_putchar(unsigned char ch)
+ {
++ if (!init_complete) {
++ find_uart_base();
++ init_complete = 1;
++ }
++
+ if (IS_ENABLED(CONFIG_SOC_MT7621) || soc_is_mt7628()) {
+ uart_w32(ch, UART_TX);
+ while ((uart_r32(UART_REG_LSR) & UART_LSR_THRE) == 0)
+--
+1.7.10.4
+