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Merge branch 'add-property-in-dwmac-stm32-documentation'

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Christophe Roullier says:

====================
Add property in dwmac-stm32 documentation

Introduce property in dwmac-stm32 documentation

 - st,ext-phyclk: is present since 2020 in driver so need to explain
   it and avoid dtbs check issue : views/kernel/upstream/net-next/arch/arm/boot/dts/st/stm32mp157c-dk2.dtb:
ethernet@5800a000: Unevaluated properties are not allowed
('st,ext-phyclk' was unexpected)
   Furthermore this property will be use in upstream of MP13 dwmac glue. (next step)
====================

Link: https://lore.kernel.org/r/20240328185337.332703-1-christophe.roullier@foss.st.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2024-03-29 15:42:14 -07:00
commit d79b28fd34
1 changed files with 7 additions and 0 deletions
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7
Documentation/devicetree/bindings/net/stm32-dwmac.yaml
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@ -82,6 +82,13 @@ properties:
Should be phandle/offset pair. The phandle to the syscon node which
encompases the glue register, and the offset of the control register
st,ext-phyclk:
description:
set this property in RMII mode when you have PHY without crystal 50MHz and want to
select RCC clock instead of ETH_REF_CLK. OR in RGMII mode when you want to select
RCC clock instead of ETH_CLK125.
type: boolean
st,eth-clk-sel:
description:
set this property in RGMII PHY when you want to select RCC clock instead of ETH_CLK125.