eMMC Binding For i.MX8MP

Wobaffet — Mon, 26 Dec 2022 12:15:28 GMT

Hello,

I'd like to ask a question about how does CMD and STROBE pins for eMMC at the i.MX8MP-EVK is not mentioned at the binding for uSDHC. But they're declared at the dts for the evk and can be seen on the schematic. Am I missing a binding or something like that? Thank you in advance!

pinctrl_usdhc3: usdhc3grp { fsl,pins = < MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK 0x190 MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD 0x1d0 MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0 0x1d0 MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1 0x1d0 MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2 0x1d0 MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3 0x1d0 MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4 0x1d0 MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5 0x1d0 MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6 0x1d0 MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7 0x1d0 MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE 0x190 >; };

Re: eMMC Binding For i.MX8MP

Sanket_Parekh — Thu, 29 Dec 2022 10:46:05 GMT

Hi @Wobaffet

I hope you are doing well

Please make a note that pin control definitions are generally not documented in dt-binding documentation as the dt-binding documents are not processor-specific. The pin-muxing related information can be found in chapter 8 Chip IO and Pinmux from the processor reference manual MX8MPRM.

Thanks & Regards

Sanket Parekh

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eMMC Binding For i.MX8MP

Re: eMMC Binding For i.MX8MP