[lkml]   [2018]   [Oct]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH net-next v4 00/11] mscc: ocelot: add support for SerDes muxing configuration
From: Quentin Schulz <>
Date: Thu, 4 Oct 2018 14:21:57 +0200

> The Ocelot switch has currently an hardcoded SerDes muxing that suits only
> a particular use case. Any other board setup will fail to work.
> To prepare for upcoming boards' support that do not have the same muxing,
> create a PHY driver that will handle all possible cases.
> A SerDes can work in SGMII, QSGMII or PCIe and is also muxed to use a
> given port depending on the selected mode or board design.
> The SerDes configuration is in the middle of an address space (HSIO) that
> is used to configure some parts in the MAC controller driver, that is why
> we need to use a syscon so that we can write to the same address space from
> different drivers safely using regmap.
> This breaks backward compatibility but it's fine because there's only one
> board at the moment that is using what's modified in this patch series.
> This will break git bisect.
> Even though this patch series is about SerDes __muxing__ configuration, the
> DT node is named serdes for the simple reason that I couldn't find any
> mention to SerDes anywhere else from the address space handled by this
> driver.

Series applied to net-next, thanks.

 \ /
  Last update: 2018-10-05 23:40    [W:0.078 / U:7.752 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site