Re: [PATCH v2 03/12] PCI: aardvark: Add PHY support

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Hi Marek,

Marek Behun <marek.behun@xxxxxx> wrote on Fri, 14 Dec 2018 01:57:12
+0100:

> On Fri, 14 Dec 2018 01:47:01 +0100
> Marek Behun <marek.behun@xxxxxx> wrote:
> 
> > Hi Miquel,
> > are there already patches for the A37xx comphy driver?  

Please try the latest patches on top of phy -next (with PHY interface
mode), available there [1]. You can pick only the COMPHY patches, but
keep them over the phy -next branch.

Please note that for the SMC calls to succeed you must use a recent
ATF. Personally I used to work with the 'atf-v1.5-devel' branch of
Marvell's misl-atf repository but it is not available anymore. If you
already have a clone, then you are good to go, otherwise it might be
great if someone from Marvell could share a public Github link?

> Never mind, I found them. I shall test this on Turris Mox.
> Is the comphy driver supposed to be able to change eth mode from
> 1000BASE-X to 2500BASE-X and back without reboot?

In theory yes, unfortunately I am working on an EspressoBin which uses
the SATA, PCIe and SATA configurations of the COMPHY, but not the
Ethernet ones (SGMII/1000BASE-X and HS_SGMII/2500BASE-X). So the
support is ready to be tested!

> 
> This would be cool for our SFP cage module of Turris Mox, just to add
> support for comphy into mvneta.
> 
> Marek

[1] https://github.com/miquelraynal/linux.git branch marvell/phy-next/pm


Thanks,
Miquèl



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