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1da177e4 LT |
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 | #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 | ||
25 | ENTRY(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 | ||
38 | ENTRY(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 |