move early_printk stuff into a separate file

SVN-Revision: 17403

target/linux/ar71xx/files/arch/mips/ar71xx/Makefile

@@ -10,6 +10,7 @@
 
 obj-y	:= prom.o irq.o setup.o devices.o gpio.o ar71xx.o
 
+obj-$(CONFIG_EARLY_PRINTK)		+= early_printk.o
 obj-$(CONFIG_PCI)			+= pci.o
 
 obj-$(CONFIG_AR71XX_MACH_AP81)		+= mach-ap81.o

target/linux/ar71xx/files/arch/mips/ar71xx/early_printk.c

@@ -0,0 +1,30 @@
+/*
+ *  Atheros AR71xx SoC early printk support
+ *
+ *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@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/io.h>
+#include <linux/serial_reg.h>
+#include <asm/addrspace.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+
+#define UART_READ(r) \
+	__raw_readl((void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE) + 4 * (r)))
+
+#define UART_WRITE(r, v) \
+	__raw_writel((v), (void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE) + 4*(r)))
+
+void prom_putchar(unsigned char ch)
+{
+	while (((UART_READ(UART_LSR)) & UART_LSR_THRE) == 0);
+	UART_WRITE(UART_TX, ch);
+	while (((UART_READ(UART_LSR)) & UART_LSR_THRE) == 0);
+}
+

target/linux/ar71xx/files/arch/mips/ar71xx/prom.c

@@ -12,7 +12,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/io.h>
-#include <linux/serial_reg.h>
 
 #include <asm/bootinfo.h>
 #include <asm/addrspace.h>
@@ -234,16 +233,3 @@ void __init prom_free_prom_memory(void)
 {
 	/* We do not have to prom memory to free */
 }
-
-#define UART_READ(r) \
-	__raw_readl((void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE) + 4 * (r)))
-
-#define UART_WRITE(r, v) \
-	__raw_writel((v), (void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE) + 4*(r)))
-
-void prom_putchar(unsigned char ch)
-{
-	while (((UART_READ(UART_LSR)) & UART_LSR_THRE) == 0);
-	UART_WRITE(UART_TX, ch);
-	while (((UART_READ(UART_LSR)) & UART_LSR_THRE) == 0);
-}