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/*
* 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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