blob: 4410d217077e04c743b7c6857fe2bef26bf49510 [file] [log] [blame]
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001/*
2 * linux/include/asm-arm/arch-ep93xx/uncompress.h
3 *
4 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or (at
9 * your option) any later version.
10 */
11
12#include <asm/arch/ep93xx-regs.h>
13
14static unsigned char __raw_readb(unsigned int ptr)
15{
16 return *((volatile unsigned char *)ptr);
17}
18
19static void __raw_writeb(unsigned char value, unsigned int ptr)
20{
21 *((volatile unsigned char *)ptr) = value;
22}
23
24
25#define PHYS_UART1_DATA 0x808c0000
26#define PHYS_UART1_FLAG 0x808c0018
27#define UART1_FLAG_TXFF 0x20
28
29static __inline__ void putc(char c)
30{
31 int i;
32
33 for (i = 0; i < 1000; i++) {
34 /* Transmit fifo not full? */
35 if (!(__raw_readb(PHYS_UART1_FLAG) & UART1_FLAG_TXFF))
36 break;
37 }
38
39 __raw_writeb(c, PHYS_UART1_DATA);
40}
41
42static void putstr(const char *s)
43{
44 while (*s) {
45 putc(*s);
46 if (*s == '\n')
47 putc('\r');
48 s++;
49 }
50}
51
52#define arch_decomp_setup()
53#define arch_decomp_wdog()