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#include <asm/setup.h>
12
13static void 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 prom_putchar(char c)
26{
27	wait_xfered();
28	bcm_uart0_writel(c, UART_FIFO_REG);
29	wait_xfered();
30}

 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#include <asm/setup.h>
12
13static void 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 prom_putchar(char c)
26{
27	wait_xfered();
28	bcm_uart0_writel(c, UART_FIFO_REG);
29	wait_xfered();
30}