lkml.org 
[lkml]   [2020]   [Jan]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 1/1] net: ethernet: stmmac: simplify phy modes management for stm32
From
From: Christophe Roullier <christophe.roullier@st.com>
Date: Tue, 28 Jan 2020 09:39:42 +0100

> No new feature, just to simplify stm32 part to be easier to use.
> Add by default all Ethernet clocks in DT, and activate or not in function
> of phy mode, clock frequency, if property "st,ext-phyclk" is set or not.
> Keep backward compatibility
> -----------------------------------------------------------------------
> |PHY_MODE | Normal | PHY wo crystal| PHY wo crystal | No 125Mhz |
> | | | 25MHz | 50MHz | from PHY |
> -----------------------------------------------------------------------
> | MII | - | eth-ck | n/a | n/a |
> | | | st,ext-phyclk | | |
> -----------------------------------------------------------------------
> | GMII | - | eth-ck | n/a | n/a |
> | | | st,ext-phyclk | | |
> -----------------------------------------------------------------------
> | RGMII | - | eth-ck | n/a | eth-ck |
> | | | st,ext-phyclk | |st,eth-clk-sel|
> | | | | | or |
> | | | | | st,ext-phyclk|
> ------------------------------------------------------------------------
> | RMII | - | eth-ck | eth-ck | n/a |
> | | | st,ext-phyclk | st,eth-ref-clk-sel | |
> | | | | or st,ext-phyclk | |
> ------------------------------------------------------------------------
>
> Signed-off-by: Christophe Roullier <christophe.roullier@st.com>

If anything, this is more of a cleanup, and therefore only appropriate for
net-next when it opens back up.

\
 
 \ /
  Last update: 2020-01-29 11:52    [W:0.117 / U:0.164 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site