Hi Vladimir,
Thanks for your comments!
> -----Original Message-----
> From: Vladimir Oltean <olte...@gmail.com>
> Sent: 2020年5月4日 0:27
> To: Z.q. Hou <zhiqiang....@nxp.com>
> Cc: u-boot <u-boot@lists.denx.de>; Joe Hershberger
> <joe.hershber...@ni.com>; Bin Meng <bmeng...@gmail.com>; Priyanka Jain
> <priyanka.j...@nxp.com>
> Subject: Re: [PATCHv2 3/3] net: tsec: Access TBI PHY through the
> corresponding MII
>
> On Sun, 3 May 2020 at 17:53, Zhiqiang Hou <zhiqiang....@nxp.com> wrote:
> >
> > From: Hou Zhiqiang <zhiqiang....@nxp.com>
> >
> > When an eTSEC is configured to use TBI, configuration of the TBI is
> > done through the MIIM registers for that eTSEC.
> > For example, if a TBI interface is required on eTSEC2, then the MIIM
> > registers starting at offset 0x2_5520 are used to configure it.
> >
> > Fixes: 9a1d6af55ecd ("net: tsec: Add driver model ethernet support")
> > Signed-off-by: Hou Zhiqiang <zhiqiang....@nxp.com>
> > Reviewed-by: Vladimir Oltean <vladimir.olt...@nxp.com>
> > Tested-by: Vladimir Oltean <vladimir.olt...@nxp.com>
> > ---
>
> Looks good, thanks!
> Out of curiosity, are you also working on DM_MDIO for the tsec driver?
> Some of this code should go away when we do that conversion.
No, I'm not, I saw your patches for the DM_MDIO support.
Thanks,
Zhiqiang
>
> > V2:
> > - Added error message for getting the internal TBI PHY MII reg.
> > - Only try to get TBI PHY MII reg under the condition "tbi-handle".
> >
> > drivers/net/tsec.c | 25 +++++++++++++++++++++----
> > 1 file changed, 21 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c index
> > 541f964d2e..842cddf229 100644
> > --- a/drivers/net/tsec.c
> > +++ b/drivers/net/tsec.c
> > @@ -789,6 +789,7 @@ int tsec_probe(struct udevice *dev) {
> > struct eth_pdata *pdata = dev_get_platdata(dev);
> > struct tsec_private *priv = dev_get_priv(dev);
> > + struct tsec_mii_mng __iomem *ext_phyregs_mii;
> > struct ofnode_phandle_args phandle_args;
> > u32 tbiaddr = CONFIG_SYS_TBIPA_VALUE;
> > struct fsl_pq_mdio_info mdio_info; @@ -822,14 +823,30 @@ int
> > tsec_probe(struct udevice *dev)
> > return -ENOENT;
> > }
> >
> > - priv->phyregs_sgmii = map_physmem(reg +
> TSEC_MDIO_REGS_OFFSET, 0,
> > - MAP_NOCACHE);
> > + ext_phyregs_mii = map_physmem(reg +
> TSEC_MDIO_REGS_OFFSET, 0,
> > + MAP_NOCACHE);
> >
> > ret = dev_read_phandle_with_args(dev, "tbi-handle", NULL, 0, 0,
> > &phandle_args);
> > - if (ret == 0)
> > + if (ret == 0) {
> > ofnode_read_u32(phandle_args.node, "reg", &tbiaddr);
> >
> > + parent = ofnode_get_parent(phandle_args.node);
> > + if (!ofnode_valid(parent)) {
> > + printf("No parent node for TBI PHY?\n");
> > + return -ENOENT;
> > + }
> > +
> > + reg = ofnode_get_addr_index(parent, 0);
> > + if (reg == FDT_ADDR_T_NONE) {
> > + printf("No 'reg' property of MII for TBI
> PHY\n");
> > + return -ENOENT;
> > + }
> > +
> > + priv->phyregs_sgmii = map_physmem(reg +
> TSEC_MDIO_REGS_OFFSET,
> > + 0,
> MAP_NOCACHE);
> > + }
> > +
> > priv->tbiaddr = tbiaddr;
> >
> > phy_mode = dev_read_prop(dev, "phy-connection-type", NULL);
> @@
> > -846,7 +863,7 @@ int tsec_probe(struct udevice *dev)
> > if (priv->interface == PHY_INTERFACE_MODE_SGMII)
> > priv->flags |= TSEC_SGMII;
> >
> > - mdio_info.regs = priv->phyregs_sgmii;
> > + mdio_info.regs = ext_phyregs_mii;
> > mdio_info.name = (char *)dev->name;
> > ret = fsl_pq_mdio_init(NULL, &mdio_info);
> > if (ret)
> > --
> > 2.17.1
> >
>
> Regards,
> -Vladimir
