[U-Boot] [PATCH] drivers: net: ldpaa_eth: check if the dpmac is enabled

[Prabhakar Kushwaha]

> -----Original Message-----
> From: Joe Hershberger <joe.hershberger at gmail.com>
> Sent: Saturday, March 2, 2019 3:00 AM
> To: Pankaj Bansal <pankaj.bansal at nxp.com>
> Cc: Prabhakar Kushwaha <prabhakar.kushwaha at nxp.com>; u-
> boot at lists.denx.de
> Subject: Re: [U-Boot] [PATCH] drivers: net: ldpaa_eth: check if the dpmac is
> enabled
> 
> On Fri, Feb 8, 2019 at 2:59 AM Pankaj Bansal <pankaj.bansal at nxp.com> wrote:
> >
> > some dpmacs in armv8a based freescale layerscape SOCs can be
> > configured via both serdes(sgmii, xfi, xlaui etc) bits and via
> > EC*_PMUX(rgmii) bits in RCW.
> > e.g. dpmac 17 and 18 in LX2160A can be configured as SGMII from serdes
> > bits and as RGMII via EC1_PMUX/EC2_PMUX bits Now if a dpmac is enabled
> > by serdes bits then it takes precedence over EC*_PMUX bits. i.e. in
> > LX2160A if we select serdes protocol that configures dpmac17 as SGMII
> > and set the EC1_PMUX as RGMII, then the dpmac is SGMII and not RGMII.
> >
> > Therefore, in fsl_rgmii_init function of SOC, we will check if the
> > dpmac is enabled or not? if it is (fsl_serdes_init has already enabled
> > the dpmac), then don't enable it.
> >
> > Signed-off-by: Pankaj Bansal <pankaj.bansal at nxp.com>
> 
> Acked-by: Joe Hershberger <joe.hershberger at ni.com>

Applied fsl-qoriq, awaiting upstream

--pk