blob: 272a7e0dc6cf928c11a4328741a03e5302441c8e [file] [log] [blame]
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
Andrew Victor030f4812007-05-11 13:21:27 +010024#include <asm/io.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{
Greg Ungererb54942f2007-05-18 06:28:01 +010036#ifdef AT91_DBGU
SAN People73a59c12006-01-09 17:05:41 +000037 void __iomem *sys = (void __iomem *) AT91_BASE_SYS; /* physical address */
38
Russell Kinga0815682006-03-28 10:24:33 +010039 while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXRDY))
40 barrier();
41 __raw_writel(c, sys + AT91_DBGU_THR);
Greg Ungererb54942f2007-05-18 06:28:01 +010042#endif
Russell Kinga0815682006-03-28 10:24:33 +010043}
44
45static inline void flush(void)
46{
Greg Ungererb54942f2007-05-18 06:28:01 +010047#ifdef AT91_DBGU
Russell Kinga0815682006-03-28 10:24:33 +010048 void __iomem *sys = (void __iomem *) AT91_BASE_SYS; /* physical address */
49
SAN People73a59c12006-01-09 17:05:41 +000050 /* wait for transmission to complete */
Russell Kinga0815682006-03-28 10:24:33 +010051 while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXEMPTY))
52 barrier();
Greg Ungererb54942f2007-05-18 06:28:01 +010053#endif
SAN People73a59c12006-01-09 17:05:41 +000054}
55
56#define arch_decomp_setup()
57
58#define arch_decomp_wdog()
59
60#endif