| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |