From: josephl@nvidia.com (Joseph Lo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/7] ARM: tegra: hook the LP1 iram code area and sleep_core function for Tegra124
Date: Wed, 9 Oct 2013 17:20:09 +0800 [thread overview]
Message-ID: <1381310411-11391-6-git-send-email-josephl@nvidia.com> (raw)
In-Reply-To: <1381310411-11391-1-git-send-email-josephl@nvidia.com>
To support LP1, we need to hook sleep_core function. That will turn off
MMU and jump to the IRAM to execute the rest of LP1 suspend function.
And we need the the LP1 IRAM addr to backup the original content and
replace it with LP1 low level support code.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
---
arch/arm/mach-tegra/Makefile | 1 +
arch/arm/mach-tegra/pm.c | 8 ++++++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index de3748e..019bb17 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -36,6 +36,7 @@ ifeq ($(CONFIG_CPU_IDLE),y)
obj-$(CONFIG_ARCH_TEGRA_114_SOC) += cpuidle-tegra114.o
endif
obj-$(CONFIG_ARCH_TEGRA_124_SOC) += sleep-tegra30.o
+obj-$(CONFIG_ARCH_TEGRA_124_SOC) += pm-tegra30.o
ifeq ($(CONFIG_CPU_IDLE),y)
obj-$(CONFIG_ARCH_TEGRA_124_SOC) += cpuidle-tegra114.o
endif
diff --git a/arch/arm/mach-tegra/pm.c b/arch/arm/mach-tegra/pm.c
index 14e75b7..4ae0286 100644
--- a/arch/arm/mach-tegra/pm.c
+++ b/arch/arm/mach-tegra/pm.c
@@ -218,8 +218,10 @@ static bool tegra_lp1_iram_hook(void)
break;
case TEGRA30:
case TEGRA114:
+ case TEGRA124:
if (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) ||
- IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC))
+ IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) ||
+ IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC))
tegra30_lp1_iram_hook();
break;
default:
@@ -246,8 +248,10 @@ static bool tegra_sleep_core_init(void)
break;
case TEGRA30:
case TEGRA114:
+ case TEGRA124:
if (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) ||
- IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC))
+ IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) ||
+ IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC))
tegra30_sleep_core_init();
break;
default:
--
1.8.4
next prev parent reply other threads:[~2013-10-09 9:20 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-09 9:20 [PATCH 0/7] ARM: tegra: support LP1 suspend mode for Tegra124 Joseph Lo
2013-10-09 9:20 ` [PATCH 1/7] clk: tegra124: add suspend/resume function for tegra_cpu_car_ops Joseph Lo
2013-10-09 9:26 ` Joseph Lo
2013-10-09 23:12 ` Stephen Warren
2013-10-09 9:20 ` [PATCH 2/7] ARM: tegra: add flow controller to support suspend for Tegra124 Joseph Lo
2013-10-09 23:21 ` Stephen Warren
2013-10-09 9:20 ` [PATCH 3/7] ARM: tegra: hook tegra_cpu_tear_down " Joseph Lo
2013-10-09 9:20 ` [PATCH 4/7] ARM: tegra: add LP1 support code " Joseph Lo
2013-10-09 23:20 ` Stephen Warren
2013-10-11 7:38 ` Joseph Lo
2013-10-11 15:40 ` Stephen Warren
2013-10-09 9:20 ` Joseph Lo [this message]
2013-10-09 23:25 ` [PATCH 5/7] ARM: tegra: hook the LP1 iram code area and sleep_core function " Stephen Warren
2013-10-09 9:20 ` [PATCH 6/7] ARM: tegra: enable Tegra RTC for Venice2 Joseph Lo
2013-10-09 23:27 ` Stephen Warren
2013-10-09 9:20 ` [PATCH 7/7] ARM: tegra: enable LP1 suspend mode " Joseph Lo
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