38 lines
1.0 KiB
Diff
38 lines
1.0 KiB
Diff
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From a9d4390c6d27e737887388ccbb48f3767f9f89ef Mon Sep 17 00:00:00 2001
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From: John Crispin <blogic@openwrt.org>
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Date: Fri, 24 Jan 2014 17:01:17 +0100
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Subject: [PATCH 209/215] MIPS: ralink: add MT7621 early_printk support
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Signed-off-by: John Crispin <blogic@openwrt.org>
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---
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arch/mips/ralink/early_printk.c | 10 +++++++---
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1 file changed, 7 insertions(+), 3 deletions(-)
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--- a/arch/mips/ralink/early_printk.c
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+++ b/arch/mips/ralink/early_printk.c
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@@ -13,6 +13,8 @@
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#ifdef CONFIG_SOC_RT288X
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#define EARLY_UART_BASE 0x300c00
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+#elif defined(CONFIG_SOC_MT7621)
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+#define EARLY_UART_BASE 0x1E000c00
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#else
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#define EARLY_UART_BASE 0x10000c00
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#endif
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@@ -40,9 +42,15 @@ static inline u32 uart_r32(unsigned reg)
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void prom_putchar(unsigned char ch)
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{
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+#ifdef CONFIG_SOC_MT7621
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+ uart_w32(ch, UART_TX);
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+ while ((uart_r32(0x14) & UART_LSR_THRE) == 0)
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+ ;
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+#else
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while ((uart_r32(UART_REG_LSR) & UART_LSR_THRE) == 0)
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;
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uart_w32(ch, UART_REG_TX);
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while ((uart_r32(UART_REG_LSR) & UART_LSR_THRE) == 0)
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;
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+#endif
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}
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