kernel-ark/include/asm-arm/arch-ixp4xx/uncompress.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

65 lines
1.3 KiB
C

/*
* 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(char c)
{
/* Check THRE and TEMT bits before we transmit the character.
*/
while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE);
*uart_base = c;
}
/*
* This does not append a newline
*/
static void putstr(const char *s)
{
while (*s)
{
putc(*s);
if (*s == '\n')
putc('\r');
s++;
}
}
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