[PATCH] ARM: dts: at91: sama7g5ek: disable slew rate for GMACs non MDIO pins

[Claudiu.Beznea at microchip.com]

On 28.01.2022 18:31, Eugen Hristev - M18282 wrote:
> On 1/28/22 1:10 PM, Codrin Ciubotariu wrote:
>> Non GMAC's MDIO pins should have slew rate disabled for R(G)MII modes. Set
>> them accordingly in DT.
>>
>> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu at microchip.com>
>> ---
> 
> Tested-by: Eugen Hristev <eugen.hristev at microchip.com>

Reviewed-by: Claudiu Beznea <claudiu.beznea at microchip.com>

> 
>>   arch/arm/dts/sama7g5ek.dts | 25 +++++++++++++++++++------
>>   1 file changed, 19 insertions(+), 6 deletions(-)
>>
>> diff --git a/arch/arm/dts/sama7g5ek.dts b/arch/arm/dts/sama7g5ek.dts
>> index 6adb044258..ac6f23f64e 100644
>> --- a/arch/arm/dts/sama7g5ek.dts
>> +++ b/arch/arm/dts/sama7g5ek.dts
>> @@ -125,7 +125,9 @@
>>   	#address-cells = <1>;
>>   	#size-cells = <0>;
>>   	pinctrl-names = "default";
>> -	pinctrl-0 = <&pinctrl_gmac0_default &pinctrl_gmac0_txc_default>;
>> +	pinctrl-0 = <&pinctrl_gmac0_default
>> +		     &pinctrl_gmac0_mdio_default
>> +		     &pinctrl_gmac0_txc_default>;
>>   	phy-mode = "rgmii-id";
>>   	status = "okay";
>>   
>> @@ -138,7 +140,7 @@
>>   	#address-cells = <1>;
>>   	#size-cells = <0>;
>>   	pinctrl-names = "default";
>> -	pinctrl-0 = <&pinctrl_gmac1_default>;
>> +	pinctrl-0 = <&pinctrl_gmac1_default &pinctrl_gmac1_mdio_default>;
>>   	phy-mode = "rmii";
>>   	status = "okay";
>>   
>> @@ -235,14 +237,20 @@
>>   			 <PIN_PA15__G0_TXEN>,
>>   			 <PIN_PA30__G0_RXCK>,
>>   			 <PIN_PA18__G0_RXDV>,
>> -			 <PIN_PA22__G0_MDC>,
>> -			 <PIN_PA23__G0_MDIO>,
>>   			 <PIN_PA25__G0_125CK>;
>> +		slew-rate = <0>;
>> +		bias-disable;
>> +	};
>> +
>> +	pinctrl_gmac0_mdio_default: gmac0_mdio_default {
>> +		pinmux = <PIN_PA22__G0_MDC>,
>> +			 <PIN_PA23__G0_MDIO>;
>>   		bias-disable;
>>   	};
>>   
>>   	pinctrl_gmac0_txc_default: gmac0_txc_default {
>>   		pinmux = <PIN_PA24__G0_TXCK>;
>> +		slew-rate = <0>;
>>   		bias-pull-up;
>>   	};
>>   
>> @@ -254,8 +262,13 @@
>>   			 <PIN_PD25__G1_RX0>,
>>   			 <PIN_PD26__G1_RX1>,
>>   			 <PIN_PD27__G1_RXER>,
>> -			 <PIN_PD24__G1_RXDV>,
>> -			 <PIN_PD28__G1_MDC>,
>> +			 <PIN_PD24__G1_RXDV>;
>> +		slew-rate = <0>;
>> +		bias-disable;
>> +	};
>> +
>> +	pinctrl_gmac1_mdio_default: gmac1_mdio_default {
>> +		pinmux = <PIN_PD28__G1_MDC>,
>>   			 <PIN_PD29__G1_MDIO>;
>>   		bias-disable;
>>   	};
>>
>