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From 4f6da1286d2602e00c049c29eb9e816587c752a5 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Sat, 22 Jun 2013 13:52:27 -0300
Subject: [PATCH 034/203] ARM: mvebu: fix length of ethernet registers in
mv78260 dtsi
The length of the registers area for the Marvell 370/XP Ethernet controller
was incorrect in the .dtsi: 0x2500, while it should have been 0x4000.
This problem wasn't noticed because there used to be a static mapping for
all the MMIO register region set up by ->map_io().
The register length was fixed in all the other device tree files,
except from the armada-xp-mv78260.dtsi, in the following commit:
commit cf8088c5cac6ce20d914b9131533844b9291a054
Author: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue May 21 12:33:27 2013 +0200
arm: mvebu: fix length of Ethernet registers area in .dtsi
This commit fixes a kernel panic in mvneta_probe(), when the kernel
tries to access the unmapped registers:
[ 163.639092] mvneta d0070000.ethernet eth0: mac: 6e:3c:4f:87:17:2e
[ 163.646962] mvneta d0074000.ethernet eth1: mac: 6a:04:4e:6f:f5:ef
[ 163.654853] mvneta d0030000.ethernet eth2: mac: 2a:99:19:19:fc:4c
[ 163.661258] Unable to handle kernel paging request at virtual address f011bcf0
[ 163.668523] pgd = c0004000
[ 163.671237] [f011bcf0] *pgd=2f006811, *pte=00000000, *ppte=00000000
[ 163.677565] Internal error: Oops: 807 [#1] SMP ARM
[ 163.682370] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-rc6-01850-gba0682e #11
[ 163.690046] task: ef04c000 ti: ef03e000 task.ti: ef03e000
[ 163.695467] PC is at mvneta_probe+0x34c/0xabc
[...]
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/boot/dts/armada-xp-mv78260.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm/boot/dts/armada-xp-mv78260.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
@@ -92,7 +92,7 @@
ethernet@34000 {
compatible = "marvell,armada-370-neta";
- reg = <0x34000 0x2500>;
+ reg = <0x34000 0x4000>;
interrupts = <14>;
clocks = <&gateclk 1>;
status = "disabled";
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