Hold the DDR vtt regulator active for functionality.
Signed-off-by: Nishanth Menon <nm@xxxxxx>
---
.../arm64/boot/dts/ti/k3-am654-base-board.dts | 20 +++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index d3dd6899ef03..83467adc017d 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -117,6 +117,20 @@ vdd_mmc1_sd: regulator-2 {
vin-supply = <&vcc3v3_io>;
gpio = <&pca9554 4 GPIO_ACTIVE_HIGH>;
};
+
+ vtt_supply: regulator-3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vtt";
+ pinctrl-names = "default";
+ pinctrl-0 = <&ddr_vtt_pins_default>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-active-high;
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vcc3v3_io>;
+ gpio = <&wkup_gpio0 28 GPIO_ACTIVE_HIGH>;
+ };
};
&wkup_pmx0 {
@@ -129,6 +143,12 @@ AM65X_WKUP_IOPAD(0x00cc, PIN_OUTPUT, 1) /* (AC1) WKUP_GPIO0_7.WKUP_UART0_RTSn */
>;
};
+ ddr_vtt_pins_default: ddr-vtt-pins-default {
+ pinctrl-single,pins = <
+ AM65X_WKUP_IOPAD(0x0040, PIN_OUTPUT_PULLUP, 7) /* WKUP_GPIO0_28 */
+ >;
+ };
+
wkup_i2c0_pins_default: wkup-i2c0-pins-default {
pinctrl-single,pins = <
AM65X_WKUP_IOPAD(0x00e0, PIN_INPUT, 0) /* (AC7) WKUP_I2C0_SCL */
--
2.40.0
