diff options
Diffstat (limited to 'arch/arm/mach-omap2/omap44xx-smc.S')
-rw-r--r-- | arch/arm/mach-omap2/omap44xx-smc.S | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap44xx-smc.S b/arch/arm/mach-omap2/omap44xx-smc.S new file mode 100644 index 00000000000..e69d37d9520 --- /dev/null +++ b/arch/arm/mach-omap2/omap44xx-smc.S | |||
@@ -0,0 +1,57 @@ | |||
1 | /* | ||
2 | * OMAP44xx secure APIs file. | ||
3 | * | ||
4 | * Copyright (C) 2010 Texas Instruments, Inc. | ||
5 | * Written by Santosh Shilimkar <santosh.shilimkar@ti.com> | ||
6 | * | ||
7 | * | ||
8 | * This program is free software,you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License version 2 as | ||
10 | * published by the Free Software Foundation. | ||
11 | */ | ||
12 | |||
13 | #include <linux/linkage.h> | ||
14 | |||
15 | /* | ||
16 | * This is common routine to manage secure monitor API | ||
17 | * used to modify the PL310 secure registers. | ||
18 | * 'r0' contains the value to be modified and 'r12' contains | ||
19 | * the monitor API number. It uses few CPU registers | ||
20 | * internally and hence they need be backed up including | ||
21 | * link register "lr". | ||
22 | * Function signature : void omap_smc1(u32 fn, u32 arg) | ||
23 | */ | ||
24 | |||
25 | ENTRY(omap_smc1) | ||
26 | stmfd sp!, {r2-r12, lr} | ||
27 | mov r12, r0 | ||
28 | mov r0, r1 | ||
29 | dsb | ||
30 | smc #0 | ||
31 | ldmfd sp!, {r2-r12, pc} | ||
32 | ENDPROC(omap_smc1) | ||
33 | |||
34 | ENTRY(omap_modify_auxcoreboot0) | ||
35 | stmfd sp!, {r1-r12, lr} | ||
36 | ldr r12, =0x104 | ||
37 | dsb | ||
38 | smc #0 | ||
39 | ldmfd sp!, {r1-r12, pc} | ||
40 | ENDPROC(omap_modify_auxcoreboot0) | ||
41 | |||
42 | ENTRY(omap_auxcoreboot_addr) | ||
43 | stmfd sp!, {r2-r12, lr} | ||
44 | ldr r12, =0x105 | ||
45 | dsb | ||
46 | smc #0 | ||
47 | ldmfd sp!, {r2-r12, pc} | ||
48 | ENDPROC(omap_auxcoreboot_addr) | ||
49 | |||
50 | ENTRY(omap_read_auxcoreboot0) | ||
51 | stmfd sp!, {r2-r12, lr} | ||
52 | ldr r12, =0x103 | ||
53 | dsb | ||
54 | smc #0 | ||
55 | mov r0, r0, lsr #9 | ||
56 | ldmfd sp!, {r2-r12, pc} | ||
57 | ENDPROC(omap_read_auxcoreboot0) | ||