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arm64: dts: ti: k3-am642-evm: Add VTT GPIO regulator for DDR

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Hold the DDR vtt regulator active for functionality.

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20230414073328.381336-10-nm@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Nishanth Menon
2023-04-14 02:33:27 -05:00
committed by Vignesh Raghavendra
parent 61ee557207
commit aca16cefdd
1 changed files with 20 additions and 0 deletions
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20
arch/arm64/boot/dts/ti/k3-am642-evm.dts
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@@ -148,6 +148,20 @@ vddb: regulator-4 {
regulator-boot-on;
};
vtt_supply: regulator-5 {
compatible = "regulator-fixed";
regulator-name = "vtt";
pinctrl-names = "default";
pinctrl-0 = <&ddr_vtt_pins_default>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&main_gpio0 12 GPIO_ACTIVE_HIGH>;
vin-supply = <&vsys_3v3>;
enable-active-high;
regulator-always-on;
regulator-boot-on;
};
leds {
compatible = "gpio-leds";
@@ -338,6 +352,12 @@ AM64X_IOPAD(0x025c, PIN_INPUT, 0) /* (D17) MCAN1_RX */
AM64X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (C17) MCAN1_TX */
>;
};
ddr_vtt_pins_default: ddr-vtt-pins-default {
pinctrl-single,pins = <
AM64X_IOPAD(0x0030, PIN_OUTPUT_PULLUP, 7) /* (L18) OSPI0_CSN1.GPIO0_12 */
>;
};
};
&main_uart0 {