Re: [PATCH V2 3/8] dt-bindings: net: stmmac: add phys config properties
From: Christophe ROULLIER
Date: Tue Feb 26 2019 - 05:30:41 EST
On 2/23/19 1:16 AM, Rob Herring wrote:
> On Fri, Feb 22, 2019 at 09:28:04AM +0100, Christophe Roullier wrote:
>> Add properties to support all Phy config
>> PHY_MODE (MII,GMII, RMII, RGMII) and in normal, PHY wo crystal (25Mhz),
>> PHY wo crystal (50Mhz), No 125Mhz from PHY config.
>> Signed-off-by: Christophe Roullier <christophe.roullier@xxxxxx>
>> Documentation/devicetree/bindings/net/stm32-dwmac.txt | 6 +++---
>> 1 file changed, 3 insertions(+), 3 deletions(-)
>> diff --git a/Documentation/devicetree/bindings/net/stm32-dwmac.txt b/Documentation/devicetree/bindings/net/stm32-dwmac.txt
>> index 1341012..f42dc68 100644
>> --- a/Documentation/devicetree/bindings/net/stm32-dwmac.txt
>> +++ b/Documentation/devicetree/bindings/net/stm32-dwmac.txt
>> @@ -24,9 +24,9 @@ Required properties:
>> encompases the glue register, and the offset of the control register.
>> Optional properties:
>> -- clock-names: For MPU family "mac-clk-ck" for PHY without quartz
>> -- st,int-phyclk (boolean) : valid only where PHY do not have quartz and need to be clock
>> - by RCC
> You can't just remove properties.
There is no risk to remove/rename these 2 properties, because it is
specific board which is never deployed.
With new properties (renaming clock (eth-ck) + st,eth_clk_sel and
st,eth_ref_clk_sel, we are managed all kind of specific boards stm32mp1
So no risk of backward compatible.
>> +- clock-names: For MPU family "eth-ck" for PHY without quartz
>> +- st,eth_clk_sel (boolean) : set this property in RGMII PHY when you do not want use 125Mhz
>> +- st,eth_ref_clk_sel (boolean) : set this property in RMII mode when you have PHY without crystal 50MHz
> 'sel' I assume is short for select, but the naming here and description
> don't really tell me what I'm getting.
Ok, Rob, I will update with your recommendations