From: jonathan.austin@arm•com (Jonathan Austin)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v2] ARM: Kconfig: Do not force selection of ARCH_VEXPRESS by ARCH_MULTI_V7
Date: Fri, 07 Dec 2012 14:48:54 +0000 [thread overview]
Message-ID: <50C201D6.7060408@arm.com> (raw)
In-Reply-To: <1353431918-9326-1-git-send-email-festevam@gmail.com>
On 20/11/12 17:18, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@freescale•com>
>
> When building a kernel using imx_v6_v7_defconfig, it is not possible to unselect
> ARCH_VEXPRESS due to the fact that it is automatically selected by ARCH_MULTI_V7.
>
> This is not good when someone wants to create a minimal kernel build, so let
> multi_v7_defconfig select ARCH_VEXPRESS instead.
This patch solves one aspect of a problem previously discussed for !MMU [1], but
we still have the dependency of ARCH_MULTI_V7 for ARCH_VEXPRESS. ARCH_MULTI_V7
doesn't make very much sense without an MMU because we need to hardcode things
like PHYS_OFFSET and the vectors.
Looking back though the log, I can't see quite why we need this dependency. With
Fabio's patch that selects ARCH_VEXPRESS in the defconfig, is it still required?
How do people feel about something like the patch below, to allow NOMMU things
to use Versatile Express without MULTI_V7?
Jonny
[1]http://lists.infradead.org/pipermail/linux-arm-kernel/2012-November/129976.html
-----8<-----------
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index c952960..7d3fff4 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -1,5 +1,5 @@
config ARCH_VEXPRESS
- bool "ARM Ltd. Versatile Express family" if ARCH_MULTI_V7
+ bool "ARM Ltd. Versatile Express family" if (ARCH_MULTI_V7 || !MMU)
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARM_AMBA
select ARM_GIC
next prev parent reply other threads:[~2012-12-07 14:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-20 17:18 [PATCH v2] ARM: Kconfig: Do not force selection of ARCH_VEXPRESS by ARCH_MULTI_V7 Fabio Estevam
2012-12-07 10:07 ` Fabio Estevam
2012-12-07 13:25 ` Rob Herring
2013-01-02 22:03 ` Fabio Estevam
2012-12-07 14:48 ` Jonathan Austin [this message]
2013-01-02 22:59 ` Russell King - ARM Linux
2013-01-02 23:03 ` Fabio Estevam
2013-01-02 23:15 ` Russell King - ARM Linux
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