/* | |
* This file is subject to the terms and conditions of the GNU General Public | |
* License. See the file "COPYING" in the main directory of this archive | |
* for more details. | |
* | |
* Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> | |
*/ | |
#include <linux/init.h> | |
#include <bcm63xx_io.h> | |
#include <bcm63xx_regs.h> | |
static void __init wait_xfered(void) | |
{ | |
unsigned int val; | |
/* wait for any previous char to be transmitted */ | |
do { | |
val = bcm_uart0_readl(UART_IR_REG); | |
if (val & UART_IR_STAT(UART_IR_TXEMPTY)) | |
break; | |
} while (1); | |
} | |
void __init prom_putchar(char c) | |
{ | |
wait_xfered(); | |
bcm_uart0_writel(c, UART_FIFO_REG); | |
wait_xfered(); | |
} |