From: Tony Lindgren <tony@atomide.com>
To: Dave Gerlach <d-gerlach@ti.com>
Cc: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] ARM: OMAP2+: Add HAVE_ARM_SCU for AM43XX
Date: Tue, 14 Jul 2015 00:03:17 -0700 [thread overview]
Message-ID: <20150714070317.GG17550@atomide.com> (raw)
In-Reply-To: <1436562348-53396-1-git-send-email-d-gerlach@ti.com>
* Dave Gerlach <d-gerlach@ti.com> [150710 14:08]:
> CONFIG_HAVE_ARM_SCU only gets selected if CONFIG_SMP is selected in an OMAP
> system, however AM43XX needs this option regardless of CONFIG_SMP and also
> for an AM43XX only build as it is important for controlling power in the SoC.
> Without this we cannot suspend the CPU for SoC suspend or cpuidle. The
> ARM Cortex A9 needs SCU CPU Power Status bits to be set to off mode in order
> for the PRCM to transition the MPU to low power modes.
>
> Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
> ---
> arch/arm/mach-omap2/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
> index ecc04ff..4a023e8 100644
> --- a/arch/arm/mach-omap2/Kconfig
> +++ b/arch/arm/mach-omap2/Kconfig
> @@ -60,6 +60,7 @@ config SOC_AM43XX
> select ARM_GIC
> select MACH_OMAP_GENERIC
> select MIGHT_HAVE_CACHE_L2X0
> + select HAVE_ARM_SCU
>
> config SOC_DRA7XX
> bool "TI DRA7XX"
Applying into omap-for-v4.2/fixes thanks.
Tony
WARNING: multiple messages have this Message-ID (diff)
From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: OMAP2+: Add HAVE_ARM_SCU for AM43XX
Date: Tue, 14 Jul 2015 00:03:17 -0700 [thread overview]
Message-ID: <20150714070317.GG17550@atomide.com> (raw)
In-Reply-To: <1436562348-53396-1-git-send-email-d-gerlach@ti.com>
* Dave Gerlach <d-gerlach@ti.com> [150710 14:08]:
> CONFIG_HAVE_ARM_SCU only gets selected if CONFIG_SMP is selected in an OMAP
> system, however AM43XX needs this option regardless of CONFIG_SMP and also
> for an AM43XX only build as it is important for controlling power in the SoC.
> Without this we cannot suspend the CPU for SoC suspend or cpuidle. The
> ARM Cortex A9 needs SCU CPU Power Status bits to be set to off mode in order
> for the PRCM to transition the MPU to low power modes.
>
> Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
> ---
> arch/arm/mach-omap2/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
> index ecc04ff..4a023e8 100644
> --- a/arch/arm/mach-omap2/Kconfig
> +++ b/arch/arm/mach-omap2/Kconfig
> @@ -60,6 +60,7 @@ config SOC_AM43XX
> select ARM_GIC
> select MACH_OMAP_GENERIC
> select MIGHT_HAVE_CACHE_L2X0
> + select HAVE_ARM_SCU
>
> config SOC_DRA7XX
> bool "TI DRA7XX"
Applying into omap-for-v4.2/fixes thanks.
Tony
next prev parent reply other threads:[~2015-07-14 7:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-10 21:05 [PATCH] ARM: OMAP2+: Add HAVE_ARM_SCU for AM43XX Dave Gerlach
2015-07-10 21:05 ` Dave Gerlach
2015-07-14 7:03 ` Tony Lindgren [this message]
2015-07-14 7:03 ` Tony Lindgren
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