From: Steve Glendinning <steve.glendinning@smsc.com>
Date: Thu, 26 Mar 2009 07:14:36 +0000 (+0000)
Subject: smsc911x: enforce read-after-write timing restriction on eeprom access
X-Git-Tag: v2.6.30-rc1~642^2~43
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58add9fc02e7a9dbab9d80d5fa64f13972e91eb5;p=pandora-kernel.git

smsc911x: enforce read-after-write timing restriction on eeprom access

The LAN911x datasheet specifies a minimum delay of 45ns between a write
of E2P_DATA and any read.  This patch adds a single dummy read of
BYTE_TEST to enforce this timing constraint.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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