Difuse/u-boot
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

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

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

32
arch/arm/dts/k3-j721e-common-proc-board.dts
View file

@ -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 {