1/*
2 * include/asm-arm/arch-at91/uncompress.h
3 *
4 *  Copyright (C) 2003 SAN People
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
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19 */
20
21#ifndef __ASM_ARCH_UNCOMPRESS_H
22#define __ASM_ARCH_UNCOMPRESS_H
23
24#include <asm/io.h>
25#include <asm/arch/at91_dbgu.h>
26
27/*
28 * The following code assumes the serial port has already been
29 * initialized by the bootloader.  If you didn't setup a port in
30 * your bootloader then nothing will appear (which might be desired).
31 *
32 * This does not append a newline
33 */
34static void putc(int c)
35{
36	void __iomem *sys = (void __iomem *) AT91_BASE_SYS;	/* physical address */
37
38	while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXRDY))
39		barrier();
40	__raw_writel(c, sys + AT91_DBGU_THR);
41}
42
43static inline void flush(void)
44{
45	void __iomem *sys = (void __iomem *) AT91_BASE_SYS;	/* physical address */
46
47	/* wait for transmission to complete */
48	while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXEMPTY))
49		barrier();
50}
51
52#define arch_decomp_setup()
53
54#define arch_decomp_wdog()
55
56#endif
57