1/*
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 <bcm63xx_io.h>
10#include <linux/serial_bcm63xx.h>
11
12static void wait_xfered(void)
13{
14	unsigned int val;
15
16	/* wait for any previous char to be transmitted */
17	do {
18		val = bcm_uart0_readl(UART_IR_REG);
19		if (val & UART_IR_STAT(UART_IR_TXEMPTY))
20			break;
21	} while (1);
22}
23
24void prom_putchar(char c)
25{
26	wait_xfered();
27	bcm_uart0_writel(c, UART_FIFO_REG);
28	wait_xfered();
29}
30