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SAN People73a59c12006-01-09 17:05:41 +00001/*
Andrew Victor9d041262007-02-05 11:42:07 +01002 * include/asm-arm/arch-at91/uncompress.h
SAN People73a59c12006-01-09 17:05:41 +00003 *
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
Russell Kingea75ee92006-06-20 19:53:16 +010024#include <asm/hardware.h>
Andrew Victor55d8bae2006-11-30 17:16:43 +010025#include <asm/arch/at91_dbgu.h>
SAN People73a59c12006-01-09 17:05:41 +000026
27/*
28 * The following code assumes the serial port has already been
Andrew Victor55d8bae2006-11-30 17:16:43 +010029 * initialized by the bootloader. If you didn't setup a port in
SAN People73a59c12006-01-09 17:05:41 +000030 * your bootloader then nothing will appear (which might be desired).
31 *
32 * This does not append a newline
33 */
Russell Kinga0815682006-03-28 10:24:33 +010034static void putc(int c)
SAN People73a59c12006-01-09 17:05:41 +000035{
36 void __iomem *sys = (void __iomem *) AT91_BASE_SYS; /* physical address */
37
Russell Kinga0815682006-03-28 10:24:33 +010038 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
SAN People73a59c12006-01-09 17:05:41 +000047 /* wait for transmission to complete */
Russell Kinga0815682006-03-28 10:24:33 +010048 while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXEMPTY))
49 barrier();
SAN People73a59c12006-01-09 17:05:41 +000050}
51
52#define arch_decomp_setup()
53
54#define arch_decomp_wdog()
55
56#endif