[PATCH v2 1/2] ARM: imx6: disable deeper idle states when FEC is active w/o HW workaround

Fugang Duan fugang.duan at nxp.com
Mon Jun 6 18:40:31 PDT 2016


From: Holger Schurig <holgerschurig at gmail.com> Sent: Monday, June 06, 2016 7:04 PM
> To: Fugang Duan <fugang.duan at nxp.com>; Lucas Stach
> <l.stach at pengutronix.de>; Shawn Guo <shawnguo at kernel.org>
> Cc: devicetree at vger.kernel.org; netdev at vger.kernel.org; linux-arm-
> kernel at lists.infradead.org; kernel at pengutronix.de; patchwork-
> lst at pengutronix.de
> Subject: RE: [PATCH v2 1/2] ARM: imx6: disable deeper idle states when FEC is
> active w/o HW workaround
> 
> > You just config the gpio irq like below patches:
> > bc20a5d6da71 (ARM: dts: imx6qdl-sabreauto: use GPIO_6 for FEC
> > interrupt.) 6261c4c8f13e (ARM: dts: imx6qdl-sabrelite: use GPIO_6 for
> > FEC interrupt.)
> 
> But this is per-board, e.g. not board-agnostic??!?!   Some board might
> have uses GPIO6 for other things and rendered it unusable for this ...

NXP HW reference design guide include this that reserve GPIO6 for FEC.  

The patch is fine for me, but I think it is unnecessary. 



More information about the linux-arm-kernel mailing list