From: robherring2@gmail.com (Rob Herring)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 REPOST 4/5] highbank: Unconditionally require l2x0 L2 cache controller support
Date: Wed, 14 Dec 2011 07:37:32 -0600 [thread overview]
Message-ID: <4EE8A69C.40304@gmail.com> (raw)
In-Reply-To: <1323862781-3465-5-git-send-email-dave.martin@linaro.org>
On 12/14/2011 05:39 AM, Dave Martin wrote:
> If running in the Normal World on a TrustZone-enabled SoC, Linux
> does not have complete control over the L2 cache controller
> configuration. The kernel cannot work reliably on such platforms
> without the l2x0 cache support code built in.
>
> This patch unconditionally enables l2x0 support for the Highbank
> SoC.
>
> Thanks to Rob Herring for this suggestion. [1]
>
> Signed-off-by: Dave Martin <dave.martin@linaro.org>
>
> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2011-November/074495.html
Doesn't this need to be above the SOB? Otherwise:
Acked-by: Rob Herring <rob.herring@calxeda.com>
> ---
> arch/arm/Kconfig | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index d33eb39..744296d 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -340,12 +340,12 @@ config ARCH_HIGHBANK
> select ARM_AMBA
> select ARM_GIC
> select ARM_TIMER_SP804
> + select CACHE_L2X0
> select CLKDEV_LOOKUP
> select CPU_V7
> select GENERIC_CLOCKEVENTS
> select HAVE_ARM_SCU
> select HAVE_SMP
> - select MIGHT_HAVE_CACHE_L2X0
> select USE_OF
> help
> Support for the Calxeda Highbank SoC based boards.
next prev parent reply other threads:[~2011-12-14 13:37 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-14 11:39 [PATCH v4 REPOST 0/5] Refactor common Kconfigs for easier maintenance Dave Martin
2011-12-14 11:39 ` [PATCH v4 REPOST 1/5] ARM: l2x0/pl310: Refactor Kconfig to be more maintainable Dave Martin
2011-12-14 12:03 ` Anton Vorontsov
2011-12-14 18:15 ` Tony Lindgren
2011-12-14 11:39 ` [PATCH v4 REPOST 2/5] ARM: SMP: " Dave Martin
2011-12-14 18:16 ` Tony Lindgren
2011-12-15 18:14 ` David Brown
2011-12-16 0:31 ` David Brown
2011-12-14 11:39 ` [PATCH v4 REPOST 3/5] omap4: Unconditionally require l2x0 L2 cache controller support Dave Martin
2011-12-14 18:14 ` Tony Lindgren
2011-12-14 18:30 ` Dave Martin
2011-12-14 18:39 ` Tony Lindgren
2011-12-14 21:01 ` Rob Herring
2011-12-14 21:48 ` Tony Lindgren
2011-12-14 11:39 ` [PATCH v4 REPOST 4/5] highbank: " Dave Martin
2011-12-14 13:37 ` Rob Herring [this message]
2011-12-14 13:55 ` Dave Martin
2011-12-14 11:39 ` [PATCH v4 REPOST 5/5] imx6q: Remove unconditional dependency on l2x0 L2 cache support Dave Martin
2011-12-14 13:26 ` Shawn Guo
2011-12-14 14:05 ` Richard Zhao
2011-12-14 15:01 ` Dave Martin
2011-12-15 1:02 ` Richard Zhao
2011-12-15 1:46 ` Shawn Guo
2011-12-15 1:54 ` Richard Zhao
2011-12-15 15:14 ` Dave Martin
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