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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})

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