diff options
Diffstat (limited to 'target/linux/mvebu/patches-3.10/0034-ARM-mvebu-fix-length-of-ethernet-registers-in-mv7826.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.10/0034-ARM-mvebu-fix-length-of-ethernet-registers-in-mv7826.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-3.10/0034-ARM-mvebu-fix-length-of-ethernet-registers-in-mv7826.patch b/target/linux/mvebu/patches-3.10/0034-ARM-mvebu-fix-length-of-ethernet-registers-in-mv7826.patch new file mode 100644 index 0000000000..6ee5835943 --- /dev/null +++ b/target/linux/mvebu/patches-3.10/0034-ARM-mvebu-fix-length-of-ethernet-registers-in-mv7826.patch @@ -0,0 +1,53 @@ +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"; |