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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
Russell Kinga0815682006-03-28 10:24:33 +010019static inline void putc(int c)
Linus Torvalds1da177e2005-04-16 15:20:36 -070020{
21 while(__raw_readb(IO_UART + 0x18) & 0x20 ||
Russell Kinga0815682006-03-28 10:24:33 +010022 __raw_readb(IO_UART + 0x18) & 0x08)
23 barrier();
24
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 __raw_writeb(c, IO_UART + 0x00);
26}
27
Russell Kinga0815682006-03-28 10:24:33 +010028static inline void flush(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070029{
Linus Torvalds1da177e2005-04-16 15:20:36 -070030}
31
32static __inline__ void arch_decomp_setup(void)
33{
34 __raw_writeb(0x00, IO_UART + 0x08); /* Set HSB */
35 __raw_writeb(0x00, IO_UART + 0x20); /* Disable IRQs */
36 __raw_writeb(0x01, IO_UART + 0x14); /* Enable UART */
37}
38
39#define arch_decomp_wdog()