Re: [PATCH v3 13/15] phy: cadence: Sierra: Add PCIe + QSGMII PHY multilink configuration

From: Vinod Koul
Date: Thu Nov 25 2021 - 00:12:46 EST


On 24-11-21, 07:33, Swapnil Kashinath Jakhade wrote:

> > so this is pcie->qsgmii ->ssc/external/internal ... ok
> >
> > > + [NO_SSC] =
> > &pcie_100_no_ssc_plllc_cmn_vals,
> > > + [EXTERNAL_SSC] =
> > &pcie_100_ext_ssc_plllc_cmn_vals,
> > > + [INTERNAL_SSC] =
> > &pcie_100_int_ssc_plllc_cmn_vals,
> > > + },
> > > },
> > > [TYPE_USB] = {
> > > [TYPE_NONE] = {
> > > [EXTERNAL_SSC] =
> > &usb_100_ext_ssc_cmn_vals,
> > > },
> > > },
> > > + [TYPE_QSGMII] = {
> > > + [TYPE_PCIE] = {
> >
> > now it is reverse! qsgmii -> pcie -> ... why?
> >
> > what is meant by pcie->qsgmii and qsgmii-> pcie?
> >
>
> Multi-protocol configuration is done in 2 phases, each for one protocol.
> e.g. for PCIe + QSGMII case,
> [TYPE_PCIE][TYPE_QSGMII] will configure common and lane registers for PCIe and
> [TYPE_QSGMII][TYPE_PCIE] will configure common and lane registers for QSGMII.

Then it should be always common + protocol or protocol + common, not
both please! Pls make an order and stick to it everywhere... If that is
not possible, I would like to understand why

--
~Vinod