1/*
2 *  linux/arch/arm/lib/ecard.S
3 *
4 *  Copyright (C) 1995, 1996 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * 27/03/03 Ian Molton Clean up CONFIG_CPU
11 *
12 */
13#include <linux/linkage.h>
14#include <asm/assembler.h>
15
16#define CPSR2SPSR(rt) \
17		mrs	rt, cpsr; \
18		msr	spsr_cxsf, rt
19
20@ Purpose: call an expansion card loader to read bytes.
21@ Proto  : char read_loader(int offset, char *card_base, char *loader);
22@ Returns: byte read
23
24ENTRY(ecard_loader_read)
25		stmfd	sp!, {r4 - r12, lr}
26		mov	r11, r1
27		mov	r1, r0
28		CPSR2SPSR(r0)
29		mov	lr, pc
30		mov	pc, r2
31		ldmfd	sp!, {r4 - r12, pc}
32
33@ Purpose: call an expansion card loader to reset the card
34@ Proto  : void read_loader(int card_base, char *loader);
35@ Returns: byte read
36
37ENTRY(ecard_loader_reset)
38		stmfd	sp!, {r4 - r12, lr}
39		mov	r11, r0
40		CPSR2SPSR(r0)
41		mov	lr, pc
42		add	pc, r1, #8
43		ldmfd	sp!, {r4 - r12, pc}
44
45