linux-kernel - Re: [PATCH v2 6/9] arm64: dts: ti: k3-am6*: Remove DLL properties for soft PHYs

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Message-ID: <ede25bc6-7c9c-4d1f-9233-de4ae14d42eb@ti.com>
Date: Tue, 13 Feb 2024 10:06:27 -0600
From: Judith Mendez <jm@...com>
To: Wadim Egorov <w.egorov@...tec.de>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>
CC: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero
 Kristo <kristo@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Francesco
 Dolcini <francesco.dolcini@...adex.com>
Subject: Re: [PATCH v2 6/9] arm64: dts: ti: k3-am6*: Remove DLL properties for
 soft PHYs

Hi Wadim,

On 2/13/24 9:52 AM, Judith Mendez wrote:
> Hi Wadim,
> 
> On 2/12/24 11:26 PM, Wadim Egorov wrote:
>> Hi Judith,
>>
>> Am 13.02.24 um 01:24 schrieb Judith Mendez:
>>> Remove DLL properties which are not applicable for soft PHYs
>>> since these PHYs do not have a DLL to enable.
>>>
>>> Signed-off-by: Judith Mendez <jm@...com>
>>> ---
>>>   arch/arm64/boot/dts/ti/k3-am62-main.dtsi              | 3 ---
>>>   arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi       | 1 -
>>>   arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi     | 1 -
>>>   arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi        | 1 -
>>>   arch/arm64/boot/dts/ti/k3-am62-verdin-wifi.dtsi       | 1 -
>>>   arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi            | 2 --
>>>   arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts        | 3 ---
>>>   arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-rdk.dts | 1 -
>>>   arch/arm64/boot/dts/ti/k3-am62a-main.dtsi             | 1 -
>>>   arch/arm64/boot/dts/ti/k3-am62a7-sk.dts               | 1 -
>>>   arch/arm64/boot/dts/ti/k3-am62p5-sk.dts               | 1 -
>>>   arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi        | 2 --
>>>   arch/arm64/boot/dts/ti/k3-am64-main.dtsi              | 1 -
>>>   arch/arm64/boot/dts/ti/k3-am642-evm.dts               | 1 -
>>>   arch/arm64/boot/dts/ti/k3-am642-sk.dts                | 1 -
>>
>> what about sdhci1 node updates on
>>    - k3-am642-phyboard-electra-rdk.dts
>>    - k3-am642-tqma64xxl-mbax4xxl.dts
>>
> 
> The same patch applies for this boards.

I will add for v3.

> 
>> Also does this apply only for am64 and sdhci1 (and not sdhci0)?
>> In your v1 you are describing that only AM64x and AM62p devices have a 
>> DLL to update the drive strength.
>> Trying to understand why only one of the interfaces gets updated.
> 
> This patch only applies for AM64x sdhci1 node, since sdhci1
> is a soft PHY and does not have a DLL.
> 
> ~ Judith
> 
>>
>> Regards,
>> Wadim
>>
>>>   15 files changed, 21 deletions(-)
>>>
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi 
>>> b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
>>> index fe0cc4a9a501..79ed5cbbbda1 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
>>> @@ -561,7 +561,6 @@ sdhci0: mmc@...0000 {
>>>           assigned-clock-parents = <&k3_clks 57 8>;
>>>           mmc-ddr-1_8v;
>>>           mmc-hs200-1_8v;
>>> -        ti,trm-icp = <0x2>;
>>>           bus-width = <8>;
>>>           ti,clkbuf-sel = <0x7>;
>>>           ti,otap-del-sel-legacy = <0x0>;
>>> @@ -580,7 +579,6 @@ sdhci1: mmc@...0000 {
>>>           power-domains = <&k3_pds 58 TI_SCI_PD_EXCLUSIVE>;
>>>           clocks = <&k3_clks 58 5>, <&k3_clks 58 6>;
>>>           clock-names = "clk_ahb", "clk_xin";
>>> -        ti,trm-icp = <0x2>;
>>>           ti,otap-del-sel-legacy = <0x8>;
>>>           ti,otap-del-sel-sd-hs = <0x0>;
>>>           ti,otap-del-sel-sdr12 = <0x0>;
>>> @@ -604,7 +602,6 @@ sdhci2: mmc@...0000 {
>>>           power-domains = <&k3_pds 184 TI_SCI_PD_EXCLUSIVE>;
>>>           clocks = <&k3_clks 184 5>, <&k3_clks 184 6>;
>>>           clock-names = "clk_ahb", "clk_xin";
>>> -        ti,trm-icp = <0x2>;
>>>           ti,otap-del-sel-legacy = <0x8>;
>>>           ti,otap-del-sel-sd-hs = <0x0>;
>>>           ti,otap-del-sel-sdr12 = <0x0>;
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi 
>>> b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
>>> index 3372a256c90f..43488cc8bcb1 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
>>> @@ -317,7 +317,6 @@ serial_flash: flash@0 {
>>>   &sdhci0 {
>>>       pinctrl-names = "default";
>>>       pinctrl-0 = <&main_mmc0_pins_default>;
>>> -    ti,driver-strength-ohm = <50>;
>>>       disable-wp;
>>>       non-removable;
>>>       status = "okay";
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi 
>>> b/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi
>>> index bf6d27e70bc4..6c4cec8728e4 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi
>>> @@ -185,7 +185,6 @@ &ospi0 {
>>>   /* Verdin SD_1 */
>>>   &sdhci1 {
>>> -    ti,driver-strength-ohm = <33>;
>>>       status = "okay";
>>>   };
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi 
>>> b/arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi
>>> index 680071688dcb..be62648e7818 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi
>>> @@ -206,7 +206,6 @@ &ospi0 {
>>>   /* Verdin SD_1 */
>>>   &sdhci1 {
>>> -    ti,driver-strength-ohm = <33>;
>>>       status = "okay";
>>>   };
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin-wifi.dtsi 
>>> b/arch/arm64/boot/dts/ti/k3-am62-verdin-wifi.dtsi
>>> index a6808b10c7b2..4768ef42c4fc 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am62-verdin-wifi.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin-wifi.dtsi
>>> @@ -26,7 +26,6 @@ &sdhci2 {
>>>       mmc-pwrseq = <&wifi_pwrseq>;
>>>       non-removable;
>>>       ti,fails-without-test-cd;
>>> -    ti,driver-strength-ohm = <50>;
>>>       vmmc-supply = <&reg_3v3>;
>>>       status = "okay";
>>>   };
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi 
>>> b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
>>> index 6a06724b6d16..d68310444bcb 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi
>>> @@ -1407,7 +1407,6 @@ &sdhci0 {
>>>       pinctrl-names = "default";
>>>       pinctrl-0 = <&pinctrl_sdhci0>;
>>>       non-removable;
>>> -    ti,driver-strength-ohm = <50>;
>>>       status = "okay";
>>>   };
>>> @@ -1416,7 +1415,6 @@ &sdhci1 {
>>>       pinctrl-names = "default";
>>>       pinctrl-0 = <&pinctrl_sdhci1>;
>>>       disable-wp;
>>> -    ti,driver-strength-ohm = <50>;
>>>       vmmc-supply = <&reg_sdhc1_vmmc>;
>>>       vqmmc-supply = <&reg_sdhc1_vqmmc>;
>>>       status = "disabled";
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts 
>>> b/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
>>> index 3b4246ce49de..bb6a5837bcb3 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
>>> +++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
>>> @@ -819,7 +819,6 @@ &sdhci0 {
>>>       bootph-all;
>>>       pinctrl-names = "default";
>>>       pinctrl-0 = <&emmc_pins_default>;
>>> -    ti,driver-strength-ohm = <50>;
>>>       disable-wp;
>>>       status = "okay";
>>>   };
>>> @@ -832,7 +831,6 @@ &sdhci1 {
>>>       vmmc-supply = <&vdd_3v3_sd>;
>>>       vqmmc-supply = <&vdd_sd_dv>;
>>> -    ti,driver-strength-ohm = <50>;
>>>       disable-wp;
>>>       cd-gpios = <&main_gpio1 48 GPIO_ACTIVE_LOW>;
>>>       cd-debounce-delay-ms = <100>;
>>> @@ -849,7 +847,6 @@ &sdhci2 {
>>>       ti,fails-without-test-cd;
>>>       cap-power-off-card;
>>>       keep-power-in-suspend;
>>> -    ti,driver-strength-ohm = <50>;
>>>       assigned-clocks = <&k3_clks 157 158>;
>>>       assigned-clock-parents = <&k3_clks 157 160>;
>>>       #address-cells = <1>;
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-rdk.dts 
>>> b/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-rdk.dts
>>> index 5c31f0453def..a83a90497857 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-rdk.dts
>>> +++ b/arch/arm64/boot/dts/ti/k3-am625-phyboard-lyra-rdk.dts
>>> @@ -334,7 +334,6 @@ &sdhci1 {
>>>       vqmmc-supply = <&vddshv5_sdio>;
>>>       pinctrl-names = "default";
>>>       pinctrl-0 = <&main_mmc1_pins_default>;
>>> -    ti,driver-strength-ohm = <50>;
>>>       disable-wp;
>>>       no-1-8-v;
>>>       status = "okay";
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi 
>>> b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
>>> index 6806288ec227..f283777d54b4 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
>>> @@ -561,7 +561,6 @@ sdhci1: mmc@...0000 {
>>>           power-domains = <&k3_pds 58 TI_SCI_PD_EXCLUSIVE>;
>>>           clocks = <&k3_clks 58 5>, <&k3_clks 58 6>;
>>>           clock-names = "clk_ahb", "clk_xin";
>>> -        ti,trm-icp = <0x2>;
>>>           ti,otap-del-sel-legacy = <0x0>;
>>>           ti,otap-del-sel-sd-hs = <0x0>;
>>>           ti,otap-del-sel-sdr12 = <0xf>;
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts 
>>> b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
>>> index c99b2e90f76d..f241637a5642 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
>>> +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
>>> @@ -582,7 +582,6 @@ &sdhci1 {
>>>       vmmc-supply = <&vdd_mmc1>;
>>>       pinctrl-names = "default";
>>>       pinctrl-0 = <&main_mmc1_pins_default>;
>>> -    ti,driver-strength-ohm = <50>;
>>>       disable-wp;
>>>   };
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts 
>>> b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
>>> index 8c73587b0b62..5c9b73726ebd 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
>>> +++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
>>> @@ -422,7 +422,6 @@ &sdhci1 {
>>>       vqmmc-supply = <&vddshv_sdio>;
>>>       pinctrl-names = "default";
>>>       pinctrl-0 = <&main_mmc1_pins_default>;
>>> -    ti,driver-strength-ohm = <50>;
>>>       disable-wp;
>>>       bootph-all;
>>>   };
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi 
>>> b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
>>> index 6dd496cd459a..3c45782ab2b7 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
>>> @@ -411,7 +411,6 @@ &sdhci0 {
>>>       status = "okay";
>>>       pinctrl-names = "default";
>>>       pinctrl-0 = <&main_mmc0_pins_default>;
>>> -    ti,driver-strength-ohm = <50>;
>>>       disable-wp;
>>>   };
>>> @@ -421,7 +420,6 @@ &sdhci1 {
>>>       status = "okay";
>>>       pinctrl-names = "default";
>>>       pinctrl-0 = <&main_mmc1_pins_default>;
>>> -    ti,driver-strength-ohm = <50>;
>>>       disable-wp;
>>>   };
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi 
>>> b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
>>> index 9bfa0a969bfc..a29847735c6e 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
>>> @@ -646,7 +646,6 @@ sdhci1: mmc@...0000 {
>>>           power-domains = <&k3_pds 58 TI_SCI_PD_EXCLUSIVE>;
>>>           clocks = <&k3_clks 58 3>, <&k3_clks 58 4>;
>>>           clock-names = "clk_ahb", "clk_xin";
>>> -        ti,trm-icp = <0x2>;
>>>           ti,otap-del-sel-legacy = <0x0>;
>>>           ti,otap-del-sel-sd-hs = <0x0>;
>>>           ti,otap-del-sel-sdr12 = <0xf>;
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts 
>>> b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
>>> index 5c546ae76d3e..f308076d608a 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
>>> +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
>>> @@ -508,7 +508,6 @@ &sdhci1 {
>>>       pinctrl-names = "default";
>>>       bus-width = <4>;
>>>       pinctrl-0 = <&main_mmc1_pins_default>;
>>> -    ti,driver-strength-ohm = <50>;
>>>       disable-wp;
>>>   };
>>> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts 
>>> b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
>>> index cce04e188ff6..b286eaa02ada 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
>>> +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
>>> @@ -471,7 +471,6 @@ &sdhci1 {
>>>       pinctrl-names = "default";
>>>       bus-width = <4>;
>>>       pinctrl-0 = <&main_mmc1_pins_default>;
>>> -    ti,driver-strength-ohm = <50>;
>>>       disable-wp;
>>>   };
> 
>