1 From 643e61b22155cd95ae6e18e57da50acd120da091 Mon Sep 17 00:00:00 2001
2 From: John Crispin <blogic@openwrt.org>
3 Date: Mon, 2 Dec 2013 16:11:33 +0100
4 Subject: [PATCH 503/507] MIPS: ralink: add MT7621 early_printk support
6 Signed-off-by: John Crispin <blogic@openwrt.org>
8 arch/mips/ralink/early_printk.c | 10 +++++++---
9 1 file changed, 7 insertions(+), 3 deletions(-)
11 --- a/arch/mips/ralink/early_printk.c
12 +++ b/arch/mips/ralink/early_printk.c
15 #ifdef CONFIG_SOC_RT288X
16 #define EARLY_UART_BASE 0x300c00
17 +#elif defined(CONFIG_SOC_MT7621)
18 +#define EARLY_UART_BASE 0x1E000c00
20 #define EARLY_UART_BASE 0x10000c00
22 @@ -40,9 +42,13 @@ static inline u32 uart_r32(unsigned reg)
24 void prom_putchar(unsigned char ch)
26 - while ((uart_r32(UART_REG_LSR) & UART_LSR_THRE) == 0)
27 +#ifdef CONFIG_SOC_MT7621
28 + uart_w32(ch, UART_TX);
29 + while ((uart_r32(0x14) & UART_LSR_THRE) == 0)
31 - uart_w32(ch, UART_REG_TX);
33 while ((uart_r32(UART_REG_LSR) & UART_LSR_THRE) == 0)
35 + uart_w32(ch, UART_REG_TX);