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a4a18d2b3a
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>
23 lines
527 B
ArmAsm
23 lines
527 B
ArmAsm
/*
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* Copyright (C) 2012 Samsung Electronics.
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*
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* Copied from omap-smc.S Copyright (C) 2010 Texas Instruments, Inc.
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*
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* This program is free software,you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/linkage.h>
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/*
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* Function signature: void exynos_smc(u32 cmd, u32 arg1, u32 arg2, u32 arg3)
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*/
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ENTRY(exynos_smc)
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stmfd sp!, {r4-r11, lr}
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dsb
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smc #0
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ldmfd sp!, {r4-r11, pc}
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ENDPROC(exynos_smc)
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