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linux: Enable 1V8 signaling on SD card

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Signed-off-by: Kirill Kapranov <kirill.kapranov@compulab.co.il>
This commit is contained in:
Kirill Kapranov
2021-01-06 17:09:55 +02:00
parent 00caf0d4df
commit 2bbd59e08e
2 changed files with 77 additions and 0 deletions
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recipes-kernel/linux/compulab/imx8mm.inc
+1
View File
@@ -66,5 +66,6 @@ SRC_URI_append = " \
file://0065-rtc-abx80x-Disable-bus-when-powered-from-battery.patch \
file://0066-ucm-imx8m-mini-dts-Enable-remote-proc-driver.patch \
file://0067-dts-Fix-sai2-record.patch \
file://0068-dts-Enable-1V8-modes-on-SD-card.patch \
file://defconfig \
"
recipes-kernel/linux/compulab/imx8mm/0068-dts-Enable-1V8-modes-on-SD-card.patch
+76
View File
@@ -0,0 +1,76 @@
From 21bbb2f7a1f2af8bb4ff029820626af27f8cfef1 Mon Sep 17 00:00:00 2001
From: Kirill Kapranov <kirill.kapranov@compulab.co.il>
Date: Wed, 6 Jan 2021 17:04:35 +0200
Subject: [PATCH 68/68] dts: Enable 1V8 modes on SD-card
Signed-off-by: Kirill Kapranov <kirill.kapranov@compulab.co.il>
---
arch/arm64/boot/dts/compulab/ucm-imx8m-mini.dtsi | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/boot/dts/compulab/ucm-imx8m-mini.dtsi b/arch/arm64/boot/dts/compulab/ucm-imx8m-mini.dtsi
index 191d701aee41..79cfcccfb79c 100644
--- a/arch/arm64/boot/dts/compulab/ucm-imx8m-mini.dtsi
+++ b/arch/arm64/boot/dts/compulab/ucm-imx8m-mini.dtsi
@@ -73,6 +73,15 @@
off-on-delay-us = <12000>;
};
+ reg_usdhc2_vsel: regulator-usdhc2-vsel {
+ compatible = "regulator-gpio";
+ regulator-name = "sd-vsel";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>;
+ states = <1800000 0x1 3300000 0x0>;
+ };
+
regulator-usdhc3rst {
compatible = "regulator-fixed";
regulator-name = "usdhc3_rst";
@@ -273,6 +282,7 @@
MX8MM_IOMUXC_SD2_RESET_B_GPIO2_IO19 0x41
MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x41
MX8MM_IOMUXC_SD2_WP_GPIO2_IO20 0x00
+ MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x06
>;
};
@@ -284,7 +294,6 @@
MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d0
MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d0
MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d0
- MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
>;
};
@@ -296,7 +305,6 @@
MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d4
MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d4
MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d4
- MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
>;
};
@@ -308,7 +316,6 @@
MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d6
MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d6
MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d6
- MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0
>;
};
@@ -670,9 +677,9 @@
pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
wp-gpios = <&gpio2 20 GPIO_ACTIVE_HIGH>;
- no-1-8-v;
bus-width = <4>;
vmmc-supply = <&reg_usdhc2_vmmc>;
+ vqmmc-supply = <&reg_usdhc2_vsel>;
status = "okay";
};
--
2.11.0