Re: [PATCH v2 2/2] net: phy: adin: implement cable-test support
From: Jakub Kicinski
Date: Thu Oct 22 2020 - 20:02:24 EST
On Thu, 22 Oct 2020 10:45:51 +0300 Alexandru Ardelean wrote:
> The ADIN1300/ADIN1200 support cable diagnostics using TDR.
>
> The cable fault detection is automatically run on all four pairs looking at
> all combinations of pair faults by first putting the PHY in standby (clear
> the LINK_EN bit, PHY_CTRL_3 register, Address 0x0017) and then enabling the
> diagnostic clock (set the DIAG_CLK_EN bit, PHY_CTRL_1 register, Address
> 0x0012).
>
> Cable diagnostics can then be run (set the CDIAG_RUN bit in the
> CDIAG_RUN register, Address 0xBA1B). The results are reported for each pair
> in the cable diagnostics results registers, CDIAG_DTLD_RSLTS_0,
> CDIAG_DTLD_RSLTS_1, CDIAG_DTLD_RSLTS_2, and CDIAG_DTLD_RSLTS_3, Address
> 0xBA1D to Address 0xBA20).
>
> The distance to the first fault for each pair is reported in the cable
> fault distance registers, CDIAG_FLT_DIST_0, CDIAG_FLT_DIST_1,
> CDIAG_FLT_DIST_2, and CDIAG_FLT_DIST_3, Address 0xBA21 to Address 0xBA24).
>
> This change implements support for this using phylib's cable-test support.
>
> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx>
# Form letter - net-next is closed
We have already sent a pull request for 5.10 and therefore net-next
is closed for new drivers, features, and code refactoring.
Please repost when net-next reopens after 5.10-rc1 is cut.
(http://vger.kernel.org/~davem/net-next.html will not be up to date
this time around, sorry about that).
RFC patches sent for review only are obviously welcome at any time.