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arm: dts: k3-j721e-common-proc-board: Add support for UHS modes for SD card

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Add support for regulators to power cycle and switch IO voltage to the
SD card. This enables support for UHS modes.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
This commit is contained in:
Faiz Abbas 2021-02-04 15:10:58 +05:30 committed by Lokesh Vutla
parent 52de3c324d
commit f0a496a3d2
1 changed files with 32 additions and 0 deletions
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32
arch/arm/dts/k3-j721e-common-proc-board.dts
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@ -6,6 +6,7 @@
/dts-v1/;
#include "k3-j721e-som-p0.dtsi"
#include <dt-bindings/gpio/gpio.h>
/ {
chosen {
@ -24,6 +25,29 @@
remoteproc7 = &c66_1;
remoteproc8 = &c71_0;
};
vdd_mmc1: fixedregulator-sd {
compatible = "regulator-fixed";
regulator-name = "vdd_mmc1";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
enable-active-high;
gpio = <&exp2 2 GPIO_ACTIVE_HIGH>;
};
vdd_sd_dv_alt: gpio-regulator-TLV71033 {
compatible = "regulator-gpio";
pinctrl-names = "default";
pinctrl-0 = <&vdd_sd_dv_alt_pins_default>;
regulator-name = "tlv71033";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
gpios = <&main_gpio0 117 GPIO_ACTIVE_HIGH>;
states = <1800000 0x0
3300000 0x1>;
};
};
&wkup_uart0 {
@ -79,6 +103,12 @@
J721E_IOPAD(0x25c, PIN_INPUT, 0) /* (R28) MMC1_SDWP */
>;
};
vdd_sd_dv_alt_pins_default: vdd_sd_dv_alt_pins_default {
pinctrl-single,pins = <
J721E_IOPAD(0x1d8, PIN_OUTPUT, 7) /* (W4) SPI1_CS1.GPIO0_117 */
>;
};
};
&main_sdhci0 {
@ -92,6 +122,8 @@
pinctrl-names = "default";
pinctrl-0 = <&main_mmc1_pins_default>;
ti,driver-strength-ohm = <50>;
vmmc-supply = <&vdd_mmc1>;
vqmmc-supply = <&vdd_sd_dv_alt>;
};
&main_pmx0 {