iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

arm64: dts: imx8mm-verdin: add sd1 sleep pinctrl

Browse Source 
Add SD1 sleep pinctrl to avoid backfeeding during sleep.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Marcel Ziswiler 2022-03-24 16:56:49 +01:00 committed by Shawn Guo
parent f84ccff6d8
commit 4f6b5de985
1 changed files with 19 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
View File

@ -757,10 +757,11 @@
bus-width = <4>;
cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
disable-wp;
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_cd>;
pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_cd>;
pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_cd>;
pinctrl-3 = <&pinctrl_usdhc2_sleep>, <&pinctrl_usdhc2_cd_sleep>;
vmmc-supply = <&reg_usdhc2_vmmc>;
};
@ -1174,6 +1175,11 @@
<MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x6>; /* SODIMM 84 */
};
pinctrl_usdhc2_cd_sleep: usdhc2cdslpgrp {
fsl,pins =
<MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x0>; /* SODIMM 84 */
};
pinctrl_usdhc2_pwr_en: usdhc2pwrengrp {
fsl,pins =
<MX8MM_IOMUXC_NAND_CLE_GPIO3_IO5 0x6>; /* SODIMM 76 */
@ -1216,6 +1222,18 @@
<MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x96>;
};
/* Avoid backfeeding with removed card power */
pinctrl_usdhc2_sleep: usdhc2slpgrp {
fsl,pins =
<MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x0>,
<MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x0>,
<MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x0>,
<MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x0>,
<MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x0>,
<MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x0>,
<MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x0>;
};
/*
* On-module Wi-Fi/BT or type specific SDHC interface
* (e.g. on X52 extension slot of Verdin Development Board)