linux/arch/arm/mach-exynos/smc.h
Tomasz Figa 2b9d9c321b ARM: EXYNOS: Add support for firmware-assisted suspend/resume
On a numer of Exynos-based boards Linux kernel is running in non-secure
mode under a secure firmware. This means that certain operations need to
be handled in special way, with firmware assistance. System-wide
suspend/resume is an example of such operations.

This patch adds support for firmware-assisted suspend/resume by
leveraging recently introduced suspend and resume firmware operations
and modifying existing suspend/resume paths to account for presence of
secure firmware.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
[kgene.kim@samsung.com: rebased]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-10-21 00:06:35 +09:00

36 lines
863 B
C

/*
* Copyright (c) 2012 Samsung Electronics.
*
* EXYNOS - SMC Call
*
* 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.
*/
#ifndef __ASM_ARCH_EXYNOS_SMC_H
#define __ASM_ARCH_EXYNOS_SMC_H
#define SMC_CMD_INIT (-1)
#define SMC_CMD_INFO (-2)
/* For Power Management */
#define SMC_CMD_SLEEP (-3)
#define SMC_CMD_CPU1BOOT (-4)
#define SMC_CMD_CPU0AFTR (-5)
/* For CP15 Access */
#define SMC_CMD_C15RESUME (-11)
/* For L2 Cache Access */
#define SMC_CMD_L2X0CTRL (-21)
#define SMC_CMD_L2X0SETUP1 (-22)
#define SMC_CMD_L2X0SETUP2 (-23)
#define SMC_CMD_L2X0INVALL (-24)
#define SMC_CMD_L2X0DEBUG (-25)
#ifndef __ASSEMBLY__
extern void exynos_smc(u32 cmd, u32 arg1, u32 arg2, u32 arg3);
#endif /* __ASSEMBLY__ */
#endif