| * 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 |
| * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. |
| #include <linux/console.h> |
| #include <linux/serial_reg.h> |
| #define SEAD_UART1_REGS_BASE 0xbf000800 /* ttyS1 = DB9 port */ |
| #define SEAD_UART0_REGS_BASE 0xbf000900 /* ttyS0 = USB port */ |
| #define PORT(base_addr, offset) ((unsigned int __iomem *)(base_addr+(offset)*4)) |
| static char console_port = 1; |
| static inline unsigned int serial_in(int offset, unsigned int base_addr) |
| return __raw_readl(PORT(base_addr, offset)) & 0xff; |
| static inline void serial_out(int offset, int value, unsigned int base_addr) |
| __raw_writel(value, PORT(base_addr, offset)); |
| void __init prom_init_early_console(char port) |
| base_addr = console_port ? SEAD_UART1_REGS_BASE : SEAD_UART0_REGS_BASE; |
| while ((serial_in(UART_LSR, base_addr) & UART_LSR_THRE) == 0) |
| serial_out(UART_TX, c, base_addr); |