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ARM: omap4: Provide do_wfi() for Thumb-2
[mirror_ubuntu-jammy-kernel.git] / arch / arm / mach-omap2 / omap44xx-smc.S
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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
25ENTRY(omap_smc1)
26 stmfd sp!, {r2-r12, lr}
27 mov r12, r0
28 mov r0, r1
29 dsb
df571c4a 30 smc #0
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31 ldmfd sp!, {r2-r12, pc}
32END(omap_smc1)
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33
34ENTRY(omap_modify_auxcoreboot0)
35 stmfd sp!, {r1-r12, lr}
36 ldr r12, =0x104
37 dsb
38 smc #0
39 ldmfd sp!, {r1-r12, pc}
40END(omap_modify_auxcoreboot0)
41
42ENTRY(omap_auxcoreboot_addr)
43 stmfd sp!, {r2-r12, lr}
44 ldr r12, =0x105
45 dsb
46 smc #0
47 ldmfd sp!, {r2-r12, pc}
48END(omap_auxcoreboot_addr)
49
50ENTRY(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}
57END(omap_read_auxcoreboot0)