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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2022-03-24 16:56:49 +0100
committerPhilippe Schenker <philippe.schenker@toradex.com>2022-07-28 15:07:28 +0200
commit448c7a11c42dfc1544d47894daee4e886c91164e (patch)
treece714ff5ea250d17f78f16f9ca1275b7719ddc37
parent9c28adee7fd1abd5e5c30b4b93ce2e5c7ad18826 (diff)
arm64: dts: imx8mm-verdin: add sd1 sleep pinctrl
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> (cherry picked from commit 4f6b5de98560d27638dea2b43d9a97fa88b79e4b)
-rw-r--r--arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi20
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
index 97dd7a00d63b..eafa88d980b3 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
@@ -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)