diff options
| author | Tomasz Figa <t.figa@samsung.com> | 2012-12-11 13:58:43 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2013-04-09 01:52:06 +0900 |
| commit | a4a18d2b3a9245ac43eec1e2eddd6b929b8f0bb9 (patch) | |
| tree | 5634def39dfa0acb7b2ae911ed51663da47166da /arch/arm/mach-exynos/exynos-smc.S | |
| parent | 7366b92a77fc00357294819bb495896d7482f30c (diff) | |
ARM: EXYNOS: Add support for secure monitor calls
Some boards use secure monitor calls to communicate with secure
firmware.
This patch adds exynos_smc function which uses smc assembly instruction
to do secure monitor calls.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos/exynos-smc.S')
| -rw-r--r-- | arch/arm/mach-exynos/exynos-smc.S | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/exynos-smc.S b/arch/arm/mach-exynos/exynos-smc.S new file mode 100644 index 000000000000..2e27aa3813fd --- /dev/null +++ b/arch/arm/mach-exynos/exynos-smc.S @@ -0,0 +1,22 @@ +/* + * Copyright (C) 2012 Samsung Electronics. + * + * Copied from omap-smc.S Copyright (C) 2010 Texas Instruments, Inc. + * + * This program is free software,you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/linkage.h> + +/* + * Function signature: void exynos_smc(u32 cmd, u32 arg1, u32 arg2, u32 arg3) + */ + +ENTRY(exynos_smc) + stmfd sp!, {r4-r11, lr} + dsb + smc #0 + ldmfd sp!, {r4-r11, pc} +ENDPROC(exynos_smc) |