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From: Rob Herring <robherring2@gmail.com>
To: Dave Martin <dave.martin@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org, patches@linaro.org,
	Anton Vorontsov <avorontsov@mvista.com>,
	Barry Song <baohua.song@csr.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Colin Cross <ccross@google.com>,
	Haojian Zhuang <haojian.zhuang@marvell.com>,
	John Linn <john.linn@xilinx.com>,
	Kukjin Kim <kgene.kim@samsung.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	linux-omap@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
	linux-sh@vger.kernel.org, linux-tegra@vger.kernel.org,
	Magnus Damm <magnus.damm@gmail.com>,
	Paul Mundt <lethal@linux-sh.org>, Pawel Moll <pawel.moll@arm.com>,
	Sascha Hauer <kernel@pengutronix.de>,
	Shawn Guo <shawn.guo@linaro.org>,
	Tony Lindgren <tony@atomide.com>,
	Will Deacon <will.deacon@arm.com>
Subject: Re: [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.

  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
     [not found]   ` <1323862781-3465-3-git-send-email-dave.martin-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
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
     [not found]     ` <20111214181425.GB32251-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2011-12-14 18:30       ` Dave Martin
2011-12-14 18:39         ` Tony Lindgren
     [not found]           ` <20111214183952.GG32251-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
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
     [not found] ` <1323862781-3465-1-git-send-email-dave.martin-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
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
     [not found]           ` <20111214150119.GD2568-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2011-12-15  1:02             ` Richard Zhao
2011-12-15  1:46               ` Shawn Guo
2011-12-15  1:54                 ` Richard Zhao
     [not found]                   ` <20111215015414.GQ28768-iWYTGMXpHj9ITqJhDdzsOjpauB2SiJktrE5yTffgRl4@public.gmane.org>
2011-12-15 15:14                     ` Dave Martin

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