[PATCH v5 13/20] arm: dts: k3-j721e-common-proc-board: Add support for UHS modes for SD card
Aswath Govindraju
a-govindraju at ti.com
Fri Jan 29 15:47:35 CET 2021
From: Faiz Abbas <faiz_abbas at ti.com>
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 at ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju at ti.com>
---
arch/arm/dts/k3-j721e-common-proc-board.dts | 32 +++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/arch/arm/dts/k3-j721e-common-proc-board.dts b/arch/arm/dts/k3-j721e-common-proc-board.dts
index 496a15e1d1ac..fcfc665f0944 100644
--- a/arch/arm/dts/k3-j721e-common-proc-board.dts
+++ b/arch/arm/dts/k3-j721e-common-proc-board.dts
@@ -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 {
--
2.17.1
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