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From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Mon, 30 Sep 2013 11:05:35 +0200
Subject: [PATCH] ARM: drop !ARCH_MULTIPLATFORM dependency of XIP_KERNEL
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Enabling XIP_KERNEL requires specifying the physical address of the readonly
memory. As these addresses vary among different SoCs and even machines with
the same SoC enabling XIP_KERNEL might restrict the set of machines that can
run the resulting kernel to a subset of the configured in machines.
Still allowing XIP_KERNEL for a MULTIPLATFORM kernel makes sense as for some
platforms MULTIPLATFORM is mandatory (e.g. bcm, highbank or imx). So to
allow compiling a XIP kernel for these platforms, allow selecting XIP in the
presence of ARCH_MULTIPLATFORM.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
This patch might be problematic for compile coverage testing according to
Arnd. Still I need XIP for my efm32 machine as it only features 4 MiB of
RAM.
---
arch/arm/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 23029da..efdd6ef 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2099,7 +2099,7 @@ endchoice
config XIP_KERNEL
bool "Kernel Execute-In-Place from ROM"
- depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
+ depends on !ZBOOT_ROM && !ARM_LPAE
help
Execute-In-Place allows the kernel to run from non-volatile storage
directly addressable by the CPU, such as NOR flash. This saves RAM
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