uncompress.h 2.29 KB
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/*
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 * arch/arm/mach-at91/include/mach/uncompress.h
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 *
 *  Copyright (C) 2003 SAN People
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef __ASM_ARCH_UNCOMPRESS_H
#define __ASM_ARCH_UNCOMPRESS_H

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#include <linux/io.h>
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#include <linux/atmel_serial.h>
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#include <mach/hardware.h>
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#if defined(CONFIG_AT91_EARLY_DBGU0)
#define UART_OFFSET AT91_BASE_DBGU0
#elif defined(CONFIG_AT91_EARLY_DBGU1)
#define UART_OFFSET AT91_BASE_DBGU1
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#elif defined(CONFIG_AT91_EARLY_USART0)
#define UART_OFFSET AT91_USART0
#elif defined(CONFIG_AT91_EARLY_USART1)
#define UART_OFFSET AT91_USART1
#elif defined(CONFIG_AT91_EARLY_USART2)
#define UART_OFFSET AT91_USART2
#elif defined(CONFIG_AT91_EARLY_USART3)
#define UART_OFFSET AT91_USART3
#elif defined(CONFIG_AT91_EARLY_USART4)
#define UART_OFFSET AT91_USART4
#elif defined(CONFIG_AT91_EARLY_USART5)
#define UART_OFFSET AT91_USART5
#endif
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/*
 * The following code assumes the serial port has already been
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 * initialized by the bootloader.  If you didn't setup a port in
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 * your bootloader then nothing will appear (which might be desired).
 *
 * This does not append a newline
 */
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static void putc(int c)
{
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#ifdef UART_OFFSET
	void __iomem *sys = (void __iomem *) UART_OFFSET;	/* physical address */
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	while (!(__raw_readl(sys + ATMEL_US_CSR) & ATMEL_US_TXRDY))
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		barrier();
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	__raw_writel(c, sys + ATMEL_US_THR);
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#endif
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}

static inline void flush(void)
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{
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#ifdef UART_OFFSET
	void __iomem *sys = (void __iomem *) UART_OFFSET;	/* physical address */
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	/* wait for transmission to complete */
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	while (!(__raw_readl(sys + ATMEL_US_CSR) & ATMEL_US_TXEMPTY))
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		barrier();
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#endif
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}

#define arch_decomp_setup()

#define arch_decomp_wdog()

#endif