linux-kernel - Re: [PATCHv4 6/6] arm64: dts: ti: Add eMMC support for AM62D

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Message-ID: <15530643-04a1-4c3d-9879-56d668a59667@ti.com>
Date: Tue, 24 Jun 2025 14:41:28 +0530
From: Paresh Bhagat <p-bhagat@...com>
To: Bryan Brattlof <bb@...com>
CC: <nm@...com>, <vigneshr@...com>, <praneeth@...com>, <kristo@...nel.org>,
        <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <khasim@...com>, <v-singh1@...com>,
        <afd@...com>, <devarsht@...com>
Subject: Re: [PATCHv4 6/6] arm64: dts: ti: Add eMMC support for AM62D

Hi Bryan,


On 23/06/25 19:58, Bryan Brattlof wrote:
> On June 23, 2025 thus sayeth Paresh Bhagat:
>> Add the necessary device tree node for eMMC controller along with the
>> required pinmux configuration.
>>
> Could this be squashed in 4/6?


Yep will do


>
>> Signed-off-by: Paresh Bhagat <p-bhagat@...com>
>> ---
>>   arch/arm64/boot/dts/ti/k3-am62d2-evm.dts | 27 ++++++++++++++++++++++++
>>   1 file changed, 27 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
>> index c98e4c98c956..5ceecdd68b3f 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
>> +++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
>> @@ -20,6 +20,7 @@ aliases {
>>   		serial0 = &wkup_uart0;
>>   		serial1 = &mcu_uart0;
>>   		serial2 = &main_uart0;
>> +		mmc0 = &sdhci0;
>>   		mmc1 = &sdhci1;
>>   		rtc0 = &wkup_rtc0;
>>   		ethernet0 = &cpsw_port1;
>> @@ -226,6 +227,22 @@ AM62DX_IOPAD(0x00b4, PIN_INPUT_PULLUP, 1) /* (M20) GPMC0_CSn3.I2C2_SDA */
>>   		>;
>>   	};
>>   
>> +	main_mmc0_pins_default: main-mmc0-default-pins {
>> +		pinctrl-single,pins = <
>> +			AM62DX_IOPAD(0x0220, PIN_INPUT_PULLUP, 0) /* (Y6) MMC0_CMD */
>> +			AM62DX_IOPAD(0x0218, PIN_OUTPUT, 0) /* (AB7) MMC0_CLK */
>> +			AM62DX_IOPAD(0x0214, PIN_INPUT_PULLUP, 0) /* (AA6) MMC0_DAT0 */
>> +			AM62DX_IOPAD(0x0210, PIN_INPUT_PULLUP, 0) /* (AB6) MMC0_DAT1 */
>> +			AM62DX_IOPAD(0x020c, PIN_INPUT_PULLUP, 0) /* (Y7) MMC0_DAT2 */
>> +			AM62DX_IOPAD(0x0208, PIN_INPUT_PULLUP, 0) /* (AA7) MMC0_DAT3 */
>> +			AM62DX_IOPAD(0x0204, PIN_INPUT_PULLUP, 0) /* (Y8) MMC0_DAT4 */
>> +			AM62DX_IOPAD(0x0200, PIN_INPUT_PULLUP, 0) /* (W7) MMC0_DAT5 */
>> +			AM62DX_IOPAD(0x01fc, PIN_INPUT_PULLUP, 0) /* (W9) MMC0_DAT6 */
>> +			AM62DX_IOPAD(0x01f8, PIN_INPUT_PULLUP, 0) /* (AB8) MMC0_DAT7 */
>> +		>;
>> +		bootph-all;
>> +	};
>> +
>>   	main_mmc1_pins_default: main-mmc1-default-pins {
>>   		pinctrl-single,pins = <
>>   			AM62DX_IOPAD(0x023c, PIN_INPUT, 0) /* (C21) MMC1_CMD */
>> @@ -397,6 +414,16 @@ &main_i2c2 {
>>   	clock-frequency = <400000>;
>>   };
>>   
>> +&sdhci0 {
>> +	/* eMMC */
>> +	bootph-all;
>> +	status = "okay";
>> +	non-removable;
>> +	pinctrl-names = "default";
>> +	pinctrl-0 = <&main_mmc0_pins_default>;
>> +	disable-wp;
>> +};
> Make sure we follow the ordering of these properties:
>
>      https://www.kernel.org/doc/html/latest/devicetree/bindings/dts-coding-style.html#order-of-properties-in-device-node


Will fix this. Thanks


>
>> +
>>   &sdhci1 {
>>   	/* SD/MMC */
>>   	status = "okay";
>> -- 
>> 2.34.1
>>