[PATCH 3/4] ARM: shmobile: rcar-gen2: Add CA7 arch_timer initialization for r8a7794

Arnd Bergmann arnd at arndb.de
Tue Nov 11 10:27:24 PST 2014

On Tuesday 04 November 2014 10:50:08 Simon Horman wrote:
> From: Ulrich Hecht <ulrich.hecht+renesas at gmail.com>
> On E2, the arch timer is hooked up to a different clock, and the CA7's arch
> timer CNTVOFF register must be initialized.
> Based on work by Hisashi Nakamura.
> Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas at gmail.com>
> Signed-off-by: Simon Horman <horms+renesas at verge.net.au>

This is one of the patches that broke allmodconfig in linux-next.

Can you apply the patch below before sending it to arm-soc?



>From 8bf0a4cae3137411498ff23ca46f693e4c22a25b Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd at arndb.de>
Date: Tue, 11 Nov 2014 16:36:50 +0100
Subject: [PATCH] ARM: shmobile: always build rcar setup for armv7

In a combined ARMv6/v7 kernel, the setup-rcar-gen2.c cannot
currently be compiled correctly because it uses the isb
instruction that is not available on ARMv6. Adding the
-march=armv7-a flag lets the compiler know that it is safe
to build this file for ARMv7.

Signed-off-by: Arnd Bergmann <arnd at arndb.de>

diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 7d68eba53be3..b55cac0e5b2b 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -35,6 +35,7 @@ cpu-y				:= platsmp.o headsmp.o
 # Shared SoC family objects
 obj-$(CONFIG_ARCH_RCAR_GEN2)	+= setup-rcar-gen2.o platsmp-apmu.o $(cpu-y)
+CFLAGS_setup-rcar-gen2.o	+= -march=armv7-a
 # SMP objects
 smp-y				:= $(cpu-y)

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