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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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#include <asm/hardware.h>
16
17#define CPSR2SPSR(rt) \
18 mrs rt, cpsr; \
19 msr spsr_cxsf, rt
20
21@ Purpose: call an expansion card loader to read bytes.
22@ Proto : char read_loader(int offset, char *card_base, char *loader);
23@ Returns: byte read
24
25ENTRY(ecard_loader_read)
26 stmfd sp!, {r4 - r12, lr}
27 mov r11, r1
28 mov r1, r0
29 CPSR2SPSR(r0)
30 mov lr, pc
31 mov pc, r2
32 LOADREGS(fd, sp!, {r4 - r12, pc})
33
34@ Purpose: call an expansion card loader to reset the card
35@ Proto : void read_loader(int card_base, char *loader);
36@ Returns: byte read
37
38ENTRY(ecard_loader_reset)
39 stmfd sp!, {r4 - r12, lr}
40 mov r11, r0
41 CPSR2SPSR(r0)
42 mov lr, pc
43 add pc, r1, #8
44 LOADREGS(fd, sp!, {r4 - r12, pc})
45