From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001
From: James <>
Date: Wed, 4 Nov 2015 11:49:21 +0000
Subject: trunk-47381

---
 .../arch/mips/adm5120/common/early-printk.c        | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 target/linux/adm5120/files-3.18/arch/mips/adm5120/common/early-printk.c

(limited to 'target/linux/adm5120/files-3.18/arch/mips/adm5120/common/early-printk.c')

diff --git a/target/linux/adm5120/files-3.18/arch/mips/adm5120/common/early-printk.c b/target/linux/adm5120/files-3.18/arch/mips/adm5120/common/early-printk.c
new file mode 100644
index 0000000..d900712
--- /dev/null
+++ b/target/linux/adm5120/files-3.18/arch/mips/adm5120/common/early-printk.c
@@ -0,0 +1,31 @@
+/*
+ *  ADM5120 specific early printk support
+ *
+ *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/io.h>
+
+#include <asm/addrspace.h>
+#include <asm/mach-adm5120/adm5120_defs.h>
+#include <asm/mach-adm5120/adm5120_uart.h>
+
+#define UART_READ(r) \
+	__raw_readl((void __iomem *)(KSEG1ADDR(ADM5120_UART0_BASE)+(r)))
+#define UART_WRITE(r, v) \
+	__raw_writel((v), (void __iomem *)(KSEG1ADDR(ADM5120_UART0_BASE)+(r)))
+
+void __init prom_putchar(char ch)
+{
+	while ((UART_READ(UART_REG_FLAG) & UART_FLAG_TXFE) == 0)
+		;
+	UART_WRITE(UART_REG_DATA, ch);
+	while ((UART_READ(UART_REG_FLAG) & UART_FLAG_TXFE) == 0)
+		;
+}
-- 
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