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/*
* include/asm-arm/arch-ixp4xx/uncompress.h
*
* Copyright (C) 2002 Intel Corporation.
* Copyright (C) 2003-2004 MontaVista Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#ifndef _ARCH_UNCOMPRESS_H_
#define _ARCH_UNCOMPRESS_H_
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <linux/serial_reg.h>
#define TX_DONE (UART_LSR_TEMT|UART_LSR_THRE)
static volatile u32* uart_base;
static inline void putc(int c)
{
/* Check THRE and TEMT bits before we transmit the character.
*/
while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
barrier();
*uart_base = c;
}
static void flush(void)
{
}
static __inline__ void __arch_decomp_setup(unsigned long arch_id)
{
/*
* Coyote and gtwx5715 only have UART2 connected
*/
if (machine_is_adi_coyote() || machine_is_gtwx5715())
uart_base = (volatile u32*) IXP4XX_UART2_BASE_PHYS;
else
uart_base = (volatile u32*) IXP4XX_UART1_BASE_PHYS;
}
/*
* arch_id is a variable in decompress_kernel()
*/
#define arch_decomp_setup() __arch_decomp_setup(arch_id)
#define arch_decomp_wdog()
#endif
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