blob: 1caa2b560f5362158772c936388aa31e403440e1 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/include/asm-arm/arch-l7200/uncompress.h
3 *
4 * Copyright (C) 2000 Steve Hill (sjhill@cotw.com)
5 *
6 * Changelog:
7 * 05-01-2000 SJH Created
8 * 05-13-2000 SJH Filled in function bodies
9 * 07-26-2000 SJH Removed hard coded buad rate
10 */
11
12#include <asm/hardware.h>
13
14#define IO_UART IO_START + 0x00044000
15
16#define __raw_writeb(v,p) (*(volatile unsigned char *)(p) = (v))
17#define __raw_readb(p) (*(volatile unsigned char *)(p))
18
19static __inline__ void putc(char c)
20{
21 while(__raw_readb(IO_UART + 0x18) & 0x20 ||
22 __raw_readb(IO_UART + 0x18) & 0x08);
23 __raw_writeb(c, IO_UART + 0x00);
24}
25
26static void putstr(const char *s)
27{
28 while (*s) {
29 if (*s == 10) { /* If a LF, add CR */
30 putc(10);
31 putc(13);
32 }
33 putc(*(s++));
34 }
35}
36
37static __inline__ void arch_decomp_setup(void)
38{
39 __raw_writeb(0x00, IO_UART + 0x08); /* Set HSB */
40 __raw_writeb(0x00, IO_UART + 0x20); /* Disable IRQs */
41 __raw_writeb(0x01, IO_UART + 0x14); /* Enable UART */
42}
43
44#define arch_decomp_wdog()