how to configure emmc devicetree on imx7d evm

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how to configure emmc devicetree on imx7d evm

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hyoungkikim
Contributor IV

hi experts 

I am trying to test by installing emmc on imx7d sabresd evm.
To enable emmc, I added usdhc3 status="okay" in the device tree and use pinctrl_usdhc3 as pinctrl setting

However, there is no pin description of MX7D_PAD_SD3_RESET_B_SD3_RESET
on schematics emmc reset ping is connected to GPIO_SD3_RESET_B. Do I need to set it in ushdc3 devcie tree using rst-gpios ?

 

thank you sincerely

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Zhiming_Liu
NXP TechSupport
NXP TechSupport

Hi
Yes, you need use reset pin

Best Regards
Zhiming

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1,057 次查看
Zhiming_Liu
NXP TechSupport
NXP TechSupport

Hi
Yes, you need use reset pin

Best Regards
Zhiming