@@ -159,6 +159,18 @@ vcc3v3_pcie30: vcc3v3-pcie30-regulator {
regulator-max-microvolt = <3300000>;
vin-supply = <&vcc5v0_sys>;
};
+
+ vdd_4g_3v3: vdd-4g-3v3-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpio4 RK_PC6 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&_4g_lte_pwren>;
+ regulator-name = "vdd_4g_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vcc5v0_sys>;
+ };
};
&combphy0_ps {
@@ -504,6 +516,10 @@ pcie_m2_1_pwren: pcie-m21-pwren {
};
usb {
+ _4g_lte_pwren: 4g-lte-pwren {
+ rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
typec5v_pwren: typec5v-pwren {
rockchip,pins = <1 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;
};
@@ -884,6 +900,7 @@ &uart2 {
};
&u2phy2_host {
+ phy-supply = <&vdd_4g_3v3>;
status = "okay";
};
The NanoPC-T6 has a Mini PCIe slot intended to be used for a 4G or LTE modem. This slot has no PCIe functionality, only its USB 2.0 pins are wired to the SoC, and its USIM pins are wired to a SIM card slot on the board. Define the 3.3v supply for the slot so it can be used. Signed-off-by: Hugh Cole-Baker <sigmaris@gmail.com> --- I've based the names directly on the schematic [1] (page 29) which uses VDD_4G_3.3V and 4G_LTE_PWREN for the supply and enable signal respectively. This means the enable pinctrl label needs an initial underscore. I'm OK with changing that if it's considered ugly or there's a better suggested name. [1]: https://wiki.friendlyelec.com/wiki/images/9/97/NanoPC-T6_2301_SCH.PDF .../boot/dts/rockchip/rk3588-nanopc-t6.dts | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)