diff options
Diffstat (limited to 'arch/arm/lib/ecard.S')
-rw-r--r-- | arch/arm/lib/ecard.S | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm/lib/ecard.S b/arch/arm/lib/ecard.S new file mode 100644 index 000000000000..fb7b602a6f76 --- /dev/null +++ b/arch/arm/lib/ecard.S | |||
@@ -0,0 +1,45 @@ | |||
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 | |||