From: Abhilash Kesavan <a.kesavan@samsung.com> To: nicolas.pitre@linaro.org, Dave.Martin@arm.com, lorenzo.pieralisi@arm.com, daniel.lezcano@linaro.org, linux-arm-kernel@lists.infradead.org, kgene.kim@samsung.com, t.figa@samsung.com, abrestic@chromium.org, thomas.ab@samsung.com, inderpal.s@samsung.com Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, grant.likely@linaro.org, robh+dt@kernel.org, will.deacon@arm.com, arnd@arndb.de, kesavan.abhilash@gmail.com, linux-samsung-soc@vger.kernel.org Subject: [PATCH v5 3/5] arm: exynos: Add generic cluster power control functions Date: Mon, 5 May 2014 21:56:59 +0530 [thread overview] Message-ID: <1399307221-8659-4-git-send-email-a.kesavan@samsung.com> (raw) In-Reply-To: <1399307221-8659-1-git-send-email-a.kesavan@samsung.com> Add generic cluster power control functions for exynos based SoCS for cluster power up/down and to know the cluster status. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> --- arch/arm/mach-exynos/common.h | 3 +++ arch/arm/mach-exynos/pm.c | 30 ++++++++++++++++++++++++++++++ arch/arm/mach-exynos/regs-pmu.h | 6 ++++++ 3 files changed, 39 insertions(+) diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h index a7dbb5f..03b8bb2 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -66,5 +66,8 @@ extern void exynos_sys_powerdown_conf(enum sys_powerdown mode); extern void exynos_cpu_powerdown(int cpu); extern void exynos_cpu_powerup(int cpu); extern int exynos_cpu_power_state(int cpu); +extern void exynos_cluster_powerdown(int cluster); +extern void exynos_cluster_powerup(int cluster); +extern int exynos_cluster_power_state(int cluster); #endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */ diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index 6651028..f02d864 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -136,6 +136,36 @@ int exynos_cpu_power_state(int cpu) S5P_CORE_LOCAL_PWR_EN); } +/** + * exynos_common_powerdown : power down the specified cluster + * @cluster : the cluster to power down + */ +void exynos_cluster_powerdown(int cluster) +{ + __raw_writel(0, EXYNOS_COMMON_CONFIGURATION(cluster)); +} + +/** + * exynos_cluster_powerup : power up the specified cluster + * @cluster : the cluster to power up + */ +void exynos_cluster_powerup(int cluster) +{ + __raw_writel(S5P_CORE_LOCAL_PWR_EN, + EXYNOS_COMMON_CONFIGURATION(cluster)); +} + +/** + * exynos_cluster_power_state : returns the power state of the cluster + * @cluster : the cluster to retrieve the power state from + * + */ +int exynos_cluster_power_state(int cluster) +{ + return (__raw_readl(EXYNOS_COMMON_STATUS(cluster)) & + S5P_CORE_LOCAL_PWR_EN); +} + /* For Cortex-A9 Diagnostic and Power control register */ static unsigned int save_arm_register[2]; diff --git a/arch/arm/mach-exynos/regs-pmu.h b/arch/arm/mach-exynos/regs-pmu.h index 0bdfcbc..6685ebf 100644 --- a/arch/arm/mach-exynos/regs-pmu.h +++ b/arch/arm/mach-exynos/regs-pmu.h @@ -127,6 +127,12 @@ #define EXYNOS_ARM_CORE_STATUS(_nr) \ (EXYNOS_ARM_CORE_CONFIGURATION(_nr) + 0x4) +#define EXYNOS_ARM_COMMON_CONFIGURATION S5P_PMUREG(0x2500) +#define EXYNOS_COMMON_CONFIGURATION(_nr) \ + (EXYNOS_ARM_COMMON_CONFIGURATION + (0x80 * (_nr))) +#define EXYNOS_COMMON_STATUS(_nr) \ + (EXYNOS_COMMON_CONFIGURATION(_nr) + 0x4) + /* Only for EXYNOS4210 */ #define S5P_CMU_CLKSTOP_LCD1_LOWPWR S5P_PMUREG(0x1154) #define S5P_CMU_RESET_LCD1_LOWPWR S5P_PMUREG(0x1174) -- 1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: a.kesavan@samsung.com (Abhilash Kesavan) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 3/5] arm: exynos: Add generic cluster power control functions Date: Mon, 5 May 2014 21:56:59 +0530 [thread overview] Message-ID: <1399307221-8659-4-git-send-email-a.kesavan@samsung.com> (raw) In-Reply-To: <1399307221-8659-1-git-send-email-a.kesavan@samsung.com> Add generic cluster power control functions for exynos based SoCS for cluster power up/down and to know the cluster status. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> --- arch/arm/mach-exynos/common.h | 3 +++ arch/arm/mach-exynos/pm.c | 30 ++++++++++++++++++++++++++++++ arch/arm/mach-exynos/regs-pmu.h | 6 ++++++ 3 files changed, 39 insertions(+) diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h index a7dbb5f..03b8bb2 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -66,5 +66,8 @@ extern void exynos_sys_powerdown_conf(enum sys_powerdown mode); extern void exynos_cpu_powerdown(int cpu); extern void exynos_cpu_powerup(int cpu); extern int exynos_cpu_power_state(int cpu); +extern void exynos_cluster_powerdown(int cluster); +extern void exynos_cluster_powerup(int cluster); +extern int exynos_cluster_power_state(int cluster); #endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */ diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index 6651028..f02d864 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -136,6 +136,36 @@ int exynos_cpu_power_state(int cpu) S5P_CORE_LOCAL_PWR_EN); } +/** + * exynos_common_powerdown : power down the specified cluster + * @cluster : the cluster to power down + */ +void exynos_cluster_powerdown(int cluster) +{ + __raw_writel(0, EXYNOS_COMMON_CONFIGURATION(cluster)); +} + +/** + * exynos_cluster_powerup : power up the specified cluster + * @cluster : the cluster to power up + */ +void exynos_cluster_powerup(int cluster) +{ + __raw_writel(S5P_CORE_LOCAL_PWR_EN, + EXYNOS_COMMON_CONFIGURATION(cluster)); +} + +/** + * exynos_cluster_power_state : returns the power state of the cluster + * @cluster : the cluster to retrieve the power state from + * + */ +int exynos_cluster_power_state(int cluster) +{ + return (__raw_readl(EXYNOS_COMMON_STATUS(cluster)) & + S5P_CORE_LOCAL_PWR_EN); +} + /* For Cortex-A9 Diagnostic and Power control register */ static unsigned int save_arm_register[2]; diff --git a/arch/arm/mach-exynos/regs-pmu.h b/arch/arm/mach-exynos/regs-pmu.h index 0bdfcbc..6685ebf 100644 --- a/arch/arm/mach-exynos/regs-pmu.h +++ b/arch/arm/mach-exynos/regs-pmu.h @@ -127,6 +127,12 @@ #define EXYNOS_ARM_CORE_STATUS(_nr) \ (EXYNOS_ARM_CORE_CONFIGURATION(_nr) + 0x4) +#define EXYNOS_ARM_COMMON_CONFIGURATION S5P_PMUREG(0x2500) +#define EXYNOS_COMMON_CONFIGURATION(_nr) \ + (EXYNOS_ARM_COMMON_CONFIGURATION + (0x80 * (_nr))) +#define EXYNOS_COMMON_STATUS(_nr) \ + (EXYNOS_COMMON_CONFIGURATION(_nr) + 0x4) + /* Only for EXYNOS4210 */ #define S5P_CMU_CLKSTOP_LCD1_LOWPWR S5P_PMUREG(0x1154) #define S5P_CMU_RESET_LCD1_LOWPWR S5P_PMUREG(0x1174) -- 1.7.9.5
next prev parent reply other threads:[~2014-05-05 16:26 UTC|newest] Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-05-05 16:26 [PATCH v5 0/5] MCPM backend for Exynos5420 Abhilash Kesavan 2014-05-05 16:26 ` Abhilash Kesavan [not found] ` <1399307221-8659-1-git-send-email-a.kesavan-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> 2014-05-05 16:26 ` [PATCH v5 1/5] ARM: EXYNOS: Add generic cpu power control functions for all exynos based SoCs Abhilash Kesavan 2014-05-05 16:26 ` Abhilash Kesavan 2014-05-13 2:24 ` Kukjin Kim 2014-05-13 2:24 ` Kukjin Kim 2014-05-13 10:12 ` Abhilash Kesavan 2014-05-13 10:12 ` Abhilash Kesavan 2014-05-15 21:11 ` Tomasz Figa 2014-05-15 21:11 ` Tomasz Figa 2014-05-16 5:07 ` Abhilash Kesavan 2014-05-16 5:07 ` Abhilash Kesavan 2014-05-17 0:32 ` Tomasz Figa 2014-05-17 0:32 ` Tomasz Figa 2014-05-19 2:42 ` Abhilash Kesavan 2014-05-19 2:42 ` Abhilash Kesavan 2014-05-05 16:26 ` [PATCH v5 2/5] ARM: EXYNOS: use generic exynos cpu power control functions Abhilash Kesavan 2014-05-05 16:26 ` Abhilash Kesavan 2014-05-13 2:28 ` Kukjin Kim 2014-05-13 2:28 ` Kukjin Kim 2014-05-13 10:13 ` Abhilash Kesavan 2014-05-13 10:13 ` Abhilash Kesavan 2014-05-05 16:27 ` [PATCH v5 4/5] ARM: dts: exynos5420: add CCI node Abhilash Kesavan 2014-05-05 16:27 ` Abhilash Kesavan 2014-05-05 16:26 ` Abhilash Kesavan [this message] 2014-05-05 16:26 ` [PATCH v5 3/5] arm: exynos: Add generic cluster power control functions Abhilash Kesavan 2014-05-05 16:27 ` [PATCH v5 5/5] arm: exynos: Add MCPM call-back functions Abhilash Kesavan 2014-05-05 16:27 ` Abhilash Kesavan 2014-05-05 18:12 ` Nicolas Pitre 2014-05-05 18:12 ` Nicolas Pitre 2014-05-27 11:07 ` Arnd Bergmann 2014-05-27 11:07 ` Arnd Bergmann 2014-05-27 11:39 ` Kukjin Kim 2014-05-27 11:39 ` Kukjin Kim 2014-05-27 14:25 ` Abhilash Kesavan 2014-05-27 15:17 ` Kukjin Kim 2014-05-27 15:17 ` Kukjin Kim
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