From: Wenyou Yang <wenyou.yang@atmel.com>
Date: Thu, 11 Dec 2014 07:31:09 +0000 (+0800)
Subject: ARM: at91: board-dt-sama5: add phy_fixup to override NAND_Tree
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~260^2~5^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8659752c37ec157ee254cff443b1c9d523aea22;p=pandora-kernel.git

ARM: at91: board-dt-sama5: add phy_fixup to override NAND_Tree

Appearance: On some SAMA5D4EK boards, after power up, the Eth1 doesn't work.

Reason: The PIOE2 pin is connected to the NAND_Tree# of KSZ8081,
But it outputs LOW during the reset period, which cause the NAND_Tree# enabled.

Add phy_fixup() to disable NAND_Tree by overriding the Operation
Mode Strap Override register(i.e. Register 16h) to clear the NAND_Tree bit.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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