projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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> | |
| 1da177e4 LT |
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 | ||
| 24 | ENTRY(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 | |
| 1b93a717 | 31 | ldmfd sp!, {r4 - r12, pc} |
| 1da177e4 LT |
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 | ||
| 37 | ENTRY(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 | |
| 1b93a717 | 43 | ldmfd sp!, {r4 - r12, pc} |
| 1da177e4 | 44 |