diff options
| author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2014-09-25 12:59:41 +0400 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2014-10-20 19:06:35 +0400 |
| commit | 0b7778a801fde0eacd5ee08242290273507e60a2 (patch) | |
| tree | 0a599184daa140c64b47c1231ed430bfdec3986d /arch/arm/mach-exynos | |
| parent | 134abc297e43438cdb47f30fc673680b16bc6339 (diff) | |
| download | linux-0b7778a801fde0eacd5ee08242290273507e60a2.tar.xz | |
ARM: firmware: add AFTR mode support to firmware do_idle method
On some platforms (i.e. EXYNOS ones) more than one idle mode is
available and we need to distinguish them in firmware do_idle method.
Add mode parameter to do_idle firmware method and AFTR mode support
to EXYNOS do_idle implementation.
This change is a preparation for adding secure firmware support to
EXYNOS cpuidle driver.
This patch shouldn't cause any functionality changes.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos')
| -rw-r--r-- | arch/arm/mach-exynos/common.h | 5 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/firmware.c | 10 |
2 files changed, 13 insertions, 2 deletions
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h index c218200f8544..2d830df0f647 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -119,6 +119,11 @@ extern void __iomem *sysram_base_addr; extern void __iomem *pmu_base_addr; void exynos_sysram_init(void); +enum { + FW_DO_IDLE_SLEEP, + FW_DO_IDLE_AFTR, +}; + void exynos_firmware_init(void); extern u32 exynos_get_eint_wake_mask(void); diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index f5e626d55951..e57b7c3039a2 100644 --- a/arch/arm/mach-exynos/firmware.c +++ b/arch/arm/mach-exynos/firmware.c @@ -28,9 +28,15 @@ #define EXYNOS_BOOT_ADDR 0x8 #define EXYNOS_BOOT_FLAG 0xc -static int exynos_do_idle(void) +static int exynos_do_idle(unsigned long mode) { - exynos_smc(SMC_CMD_SLEEP, 0, 0, 0); + switch (mode) { + case FW_DO_IDLE_AFTR: + exynos_smc(SMC_CMD_CPU0AFTR, 0, 0, 0); + break; + case FW_DO_IDLE_SLEEP: + exynos_smc(SMC_CMD_SLEEP, 0, 0, 0); + } return 0; } |