[PATCH] ARM: shmobile: Lager: add Micrel KSZ8041 PHY fixup
From: horms@verge.net.au (Simon Horman)
Date: 2013-09-21 17:14:05
Also in:
linux-sh, netdev
On Sat, Sep 14, 2013 at 04:29:22AM +0400, Sergei Shtylyov wrote:
Currently on the Lager board NFS timeouts/delays are seen when booting. That turned out to happen because the SoC's ETH_LINK signal turns on and off after each packet. It is connected to Micrel KSZ8041 PHY's LED0 signal. Ether LEDs on the Lager board are named LINK and ACTIVE which corresponds to non-default 01 setting of the PHY control register 1 bits 14-15. The 'sh_eth' driver resets the PHY when opening the network device, so we have to set the mentioned bits back to 01 from the default 00 value which causes bouncing of ETH_LINK. That can be achieved using the PHY platform fixup mechanism if we also modify the driver to use it.. Signed-off-by: Sergei Shtylyov <redacted> --- This patch is against the recent Linus' tree. Its effect on NFS issue depends on the 'sh_eth' driver patch I've posted earlier. Simon, please update your 'master' and/or 'fixes' branches since currently it's impossible to apply fixes to your tree. arch/arm/mach-shmobile/board-lager.c | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-)
Thanks, I have rebased my tree and applied this change to the fixes-for-v3.12 branch. And I will push the new tree either in the next half hour or some time next week - I have to jump on a plane shortly.