[meta-ti] [PATCH] linux-omap-psp: fix alignment issue of 2.6.37 kernel with gcc-4.7

[Denys Dmytriyenko]

From: Denys Dmytriyenko <denys at ti.com>

Patch by Steve Sakoman

Signed-off-by: Denys Dmytriyenko <denys at ti.com>
---
 recipes-kernel/linux/linux-omap-psp_2.6.37.bb      |  9 ++++++++
 .../linux/0001-arm-fix-builds-with-gcc-4.7.patch   | 26 ++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 recipes-kernel/linux/linux/0001-arm-fix-builds-with-gcc-4.7.patch

diff --git a/recipes-kernel/linux/linux-omap-psp_2.6.37.bb b/recipes-kernel/linux/linux-omap-psp_2.6.37.bb
index bafeba5..9eacfc9 100644
--- a/recipes-kernel/linux/linux-omap-psp_2.6.37.bb
+++ b/recipes-kernel/linux/linux-omap-psp_2.6.37.bb
@@ -6,6 +6,10 @@ COMPATIBLE_MACHINE = "omap3"
 
 SRCREV= "20c003f2f024d9f50f59edf9f1b8f5f035fb15b8"
 
+# The main PR is now using MACHINE_KERNEL_PR, for omap3 devices
+# see conf/machine/include/omap3.inc
+MACHINE_KERNEL_PR_append = "a"
+
 SRC_URI = "git://arago-project.org/git/projects/linux-omap3.git;protocol=git \
            file://defconfig"
 
@@ -83,6 +87,11 @@ SRC_URI += " \
     file://0002-usb-musb-am35x-fix-role-switching-issue.patch \
 "
 
+# Fix alignment issue with gcc-4.7
+SRC_URI += " \
+    file://0001-arm-fix-builds-with-gcc-4.7.patch \
+"
+
 # Updated PIO mode for MUSB help description
 SRC_URI_append_am3517-evm = " file://0001-musb-update-PIO-mode-help-information-in-Kconfig.patch"
 
diff --git a/recipes-kernel/linux/linux/0001-arm-fix-builds-with-gcc-4.7.patch b/recipes-kernel/linux/linux/0001-arm-fix-builds-with-gcc-4.7.patch
new file mode 100644
index 0000000..db701e2
--- /dev/null
+++ b/recipes-kernel/linux/linux/0001-arm-fix-builds-with-gcc-4.7.patch
@@ -0,0 +1,26 @@
+From 0d12debe917269a013f8eddd42da8d3de5e3174e Mon Sep 17 00:00:00 2001
+From: Steve Sakoman <steve at sakoman.com>
+Date: Thu, 24 Jan 2013 15:42:01 -0800
+Subject: [PATCH] arm: fix builds with gcc 4.7
+
+new unaligned access support in GCC was triggering an alignment fault at boot
+---
+ arch/arm/kernel/head.S | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
+index 6bd82d2..56b02cd 100644
+--- a/arch/arm/kernel/head.S
++++ b/arch/arm/kernel/head.S
+@@ -336,7 +336,7 @@ __secondary_data:
+  *  r13 = *virtual* address to jump to upon completion
+  */
+ __enable_mmu:
+-#ifdef CONFIG_ALIGNMENT_TRAP
++#if defined(CONFIG_ALIGNMENT_TRAP) && __LINUX_ARM_ARCH__ < 6
+ 	orr	r0, r0, #CR_A
+ #else
+ 	bic	r0, r0, #CR_A
+-- 
+1.8.1.2
+
-- 
1.8.1.2