blob: bf353c937df271a4826979ab0fc583bc6aa94bcc [file] [log] [blame]
Maxime Bizone7300d02009-08-18 13:23:37 +01001/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
7 */
8
9#include <linux/init.h>
10#include <bcm63xx_io.h>
11#include <bcm63xx_regs.h>
12
13static void __init wait_xfered(void)
14{
15 unsigned int val;
16
17 /* wait for any previous char to be transmitted */
18 do {
19 val = bcm_uart0_readl(UART_IR_REG);
20 if (val & UART_IR_STAT(UART_IR_TXEMPTY))
21 break;
22 } while (1);
23}
24
25void __init prom_putchar(char c)
26{
27 wait_xfered();
28 bcm_uart0_writel(c, UART_FIFO_REG);
29 wait_xfered();
30}