From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 1 Jul 2014 19:34:58 +0000 (-0700)
Subject: 3.14-stable patches
X-Git-Tag: v3.4.97~42
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=2a26058ff04fe16519ba21eb426259c27f419b3c;p=thirdparty%2Fkernel%2Fstable-queue.git

3.14-stable patches

added patches:
	arm-dts-disable-mdma1-node-for-exynos5420.patch
---

diff --git a/queue-3.14/arm-dts-disable-mdma1-node-for-exynos5420.patch b/queue-3.14/arm-dts-disable-mdma1-node-for-exynos5420.patch
new file mode 100644
index 00000000000..b08a541743c
--- /dev/null
+++ b/queue-3.14/arm-dts-disable-mdma1-node-for-exynos5420.patch
@@ -0,0 +1,46 @@
+From e6015c1f8a9032c2aecb78d23edf49582563bd47 Mon Sep 17 00:00:00 2001
+From: Seungwon Jeon <tgih.jun@samsung.com>
+Date: Fri, 9 May 2014 07:02:33 +0900
+Subject: ARM: dts: disable MDMA1 node for exynos5420
+
+From: Seungwon Jeon <tgih.jun@samsung.com>
+
+commit e6015c1f8a9032c2aecb78d23edf49582563bd47 upstream.
+
+This change places MDMA1 in disabled node for Exynos5420.
+If MDMA1 region is configured with secure mode, it makes
+the boot failure with the following on smdk5420 board.
+("Unhandled fault: imprecise external abort (0x1406) at 0x00000000")
+Thus, arndale-octa board don't need to do the same thing anymore.
+
+Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
+Tested-by: Javi Merino <javi.merino@arm.com>
+Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
+Signed-off-by: Tushar Behera <tushar.b@samsung.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+
+Tested on top of v3.14.10.
+Fixes issue reported at [1].
+[1]
+http://armcloud.us/kernel-ci/stable/v3.14.10/arm-exynos_defconfig/boot-exynos5420-arndale-octa.html
+
+ arch/arm/boot/dts/exynos5420.dtsi |    7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/arch/arm/boot/dts/exynos5420.dtsi
++++ b/arch/arm/boot/dts/exynos5420.dtsi
+@@ -323,6 +323,13 @@
+ 			#dma-cells = <1>;
+ 			#dma-channels = <8>;
+ 			#dma-requests = <1>;
++			/*
++			 * MDMA1 can support both secure and non-secure
++			 * AXI transactions. When this is enabled in the kernel
++			 * for boards that run in secure mode, we are getting
++			 * imprecise external aborts causing the kernel to oops.
++			 */
++			status = "disabled";
+ 		};
+ 	};
+ 
diff --git a/queue-3.14/series b/queue-3.14/series
new file mode 100644
index 00000000000..82df2f9f4d1
--- /dev/null
+++ b/queue-3.14/series
@@ -0,0 +1 @@
+arm-dts-disable-mdma1-node-for-exynos5420.patch