lantiq: add lzma-loader source
[openwrt/svn-archive/archive.git] / target / linux / lantiq / image / lzma-loader / src / board-ralink.c
1 /*
2 * Arch specific code for Ralink based boards
3 *
4 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
9 */
10
11 #include <stddef.h>
12 #include "config.h"
13
14 #define READREG(r) *(volatile unsigned int *)(r)
15 #define WRITEREG(r,v) *(volatile unsigned int *)(r) = v
16
17 #define KSEG1ADDR(_x) (((_x) & 0x1fffffff) | 0xa0000000)
18
19 #ifdef CONFIG_SOC_RT288X
20 #define UART_BASE 0xb0300c00
21 #else
22 #define UART_BASE 0xb0000c00
23 #endif
24
25 #define UART_TX 1
26 #define UART_LSR 7
27
28 #define UART_LSR_THRE 0x20
29
30 #define UART_READ(r) READREG(UART_BASE + 4 * (r))
31 #define UART_WRITE(r,v) WRITEREG(UART_BASE + 4 * (r), (v))
32
33 void board_putc(int ch)
34 {
35 while (((UART_READ(UART_LSR)) & UART_LSR_THRE) == 0);
36 UART_WRITE(UART_TX, ch);
37 while (((UART_READ(UART_LSR)) & UART_LSR_THRE) == 0);
38 }
39
40 void board_init(void)
41 {
42 }