| /* | |
| * 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(); | |
| } |