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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [arch/] [arm/] [lib/] [ecard.S] - Rev 1765
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/*
* linux/arch/arm/lib/ecard.S
*
* Copyright (C) 1995, 1996 Russell King
*
* 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.
*/
#include <linux/config.h> /* for CONFIG_CPU_nn */
#include <linux/linkage.h>
#include <asm/assembler.h>
#include <asm/hardware.h>
#ifdef CONFIG_CPU_26
#define CPSR2SPSR(rt)
#else
#define CPSR2SPSR(rt) \
mrs rt, cpsr; \
msr spsr, rt
#endif
@ Purpose: call an expansion card loader to read bytes.
@ Proto : char read_loader(int offset, char *card_base, char *loader);
@ Returns: byte read
ENTRY(ecard_loader_read)
stmfd sp!, {r4 - r12, lr}
mov r11, r1
mov r1, r0
CPSR2SPSR(r0)
mov lr, pc
mov pc, r2
LOADREGS(fd, sp!, {r4 - r12, pc})
@ Purpose: call an expansion card loader to reset the card
@ Proto : void read_loader(int card_base, char *loader);
@ Returns: byte read
ENTRY(ecard_loader_reset)
stmfd sp!, {r4 - r12, lr}
mov r11, r0
CPSR2SPSR(r0)
mov lr, pc
add pc, r1, #8
LOADREGS(fd, sp!, {r4 - r12, pc})