arm64: dts: rockchip: add RK3588-Q7 (Tiger) SoM
authorHeiko Stuebner <heiko.stuebner@cherry.de>
Tue, 27 Feb 2024 16:46:58 +0000 (17:46 +0100)
committerHeiko Stuebner <heiko@sntech.de>
Wed, 28 Feb 2024 12:12:26 +0000 (13:12 +0100)
The RK3588-Q7 SoM is a Qseven-compatible (70mm x 70mm, MXM-230
connector) system-on-module from Theobroma Systems, featuring the
Rockchip RK3588.

It provides the following feature set:
 * up to 16GB LPDDR4x
 * on-module eMMC
 * SD card (on a baseboard) via edge connector
 * Gigabit Ethernet with on-module GbE PHY
 * HDMI/eDP
 * MIPI-DSI
 * 4x MIPI-CSI (3x on FPC connectors, 1x over Q7)
 * HDMI input over FPC connector
 * CAN
 * USB
   - 1x USB 3.0 dual-role (direct connection)
   - 2x USB 3.0 host + 1x USB 2.0 host
 * PCIe
   - 1x PCIe 2.1 Gen3, 4 lanes
   - 2xSATA / 2x PCIe 2.1 Gen1, 2 lanes
 * on-module ATtiny816 companion controller, implementing:
   - low-power RTC functionality (ISL1208 emulation)
   - fan controller (AMC6821 emulation)
 * on-module Secure Element with Global Platform 2.2.1 compliant
   JavaCard environment

Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Reviewed-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20240227164659.705271-4-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi [new file with mode: 0644]

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi
new file mode 100644 (file)
index 0000000..1eb2543
--- /dev/null
@@ -0,0 +1,690 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2023 Theobroma Systems Design und Consulting GmbH
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include "rk3588.dtsi"
+
+/ {
+       compatible = "tsd,rk3588-tiger", "rockchip,rk3588";
+
+       aliases {
+               mmc0 = &sdhci;
+               rtc0 = &rtc_twi;
+       };
+
+       emmc_pwrseq: emmc-pwrseq {
+               compatible = "mmc-pwrseq-emmc";
+               pinctrl-0 = <&emmc_reset>;
+               pinctrl-names = "default";
+               reset-gpios = <&gpio2 RK_PA3 GPIO_ACTIVE_HIGH>;
+       };
+
+       leds {
+               compatible = "gpio-leds";
+               pinctrl-names = "default";
+               pinctrl-0 = <&module_led_pin>;
+
+               /* Named LED1 on the board */
+               led-1 {
+                       gpios = <&gpio1 RK_PD3 GPIO_ACTIVE_HIGH>;
+                       function = LED_FUNCTION_HEARTBEAT;
+                       linux,default-trigger = "heartbeat";
+                       color = <LED_COLOR_ID_AMBER>;
+               };
+       };
+
+       /*
+        * 100MHz reference clock for PCIe peripherals from PI6C557-05BLE
+        * clock generator.
+        * The clock output is gated via the OE pin on the clock generator.
+        * This is modeled as a fixed-clock plus a gpio-gate-clock.
+        */
+       pcie_refclk_gen: pcie-refclk-gen-clock {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <1000000000>;
+       };
+
+       pcie_refclk: pcie-refclk-clock {
+               compatible = "gpio-gate-clock";
+               clocks = <&pcie_refclk_gen>;
+               #clock-cells = <0>;
+               enable-gpios = <&gpio4 RK_PB4 GPIO_ACTIVE_HIGH>; /* PCIE30X4_CLKREQN_M1_L */
+       };
+
+       vcc_1v1_nldo_s3: vcc-1v1-nldo-s3-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc_1v1_nldo_s3";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <1100000>;
+               regulator-max-microvolt = <1100000>;
+               vin-supply = <&vcc5v0_sys>;
+       };
+
+       vcc_1v2_s3: vcc-1v2-s3-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc_1v2_s3";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <1200000>;
+               regulator-max-microvolt = <1200000>;
+               vin-supply = <&vcc5v0_sys>;
+       };
+
+       vcc5v0_sys: vcc5v0-sys-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc5v0_sys";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               vin-supply = <&vcc5v0_baseboard>;
+       };
+};
+
+&cpu_b0 {
+       cpu-supply = <&vdd_cpu_big0_s0>;
+};
+
+&cpu_b1 {
+       cpu-supply = <&vdd_cpu_big0_s0>;
+};
+
+&cpu_b2 {
+       cpu-supply = <&vdd_cpu_big1_s0>;
+};
+
+&cpu_b3 {
+       cpu-supply = <&vdd_cpu_big1_s0>;
+};
+
+&cpu_l0 {
+       cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_l1 {
+       cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_l2 {
+       cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_l3 {
+       cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&gmac0 {
+       clock_in_out = "output";
+       phy-handle = <&rgmii_phy>;
+       phy-mode = "rgmii";
+       phy-supply = <&vcc_1v2_s3>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&gmac0_miim
+                    &gmac0_rx_bus2
+                    &gmac0_tx_bus2
+                    &gmac0_rgmii_clk
+                    &gmac0_rgmii_bus
+                    &eth0_pins
+                    &eth_reset>;
+       tx_delay = <0x10>;
+       rx_delay = <0x10>;
+       snps,reset-gpio = <&gpio4 RK_PC3 GPIO_ACTIVE_LOW>;
+       snps,reset-active-low;
+       snps,reset-delays-us = <0 10000 100000>;
+};
+
+&i2c1 {
+       pinctrl-0 = <&i2c1m0_xfer>;
+};
+
+&i2c1m0_xfer {
+       rockchip,pins =
+               /* i2c1_scl_m0 */
+               <0 RK_PB5 9 &pcfg_pull_none_drv_level_0>,
+               /* i2c1_sda_m0 */
+               <0 RK_PB6 9 &pcfg_pull_none_drv_level_0>;
+};
+
+&i2c2 {
+       pinctrl-0 = <&i2c2m3_xfer>;
+       status = "okay";
+};
+
+&i2c2m3_xfer {
+       rockchip,pins =
+               /* i2c2_scl_m3 */
+               <1 RK_PC5 9 &pcfg_pull_none_drv_level_0>,
+               /* i2c2_sda_m3 */
+               <1 RK_PC4 9 &pcfg_pull_none_drv_level_0>;
+};
+
+&i2c3 {
+       pinctrl-0 = <&i2c3m0_xfer>;
+};
+
+&i2c4 {
+       pinctrl-0 = <&i2c4m4_xfer>;
+       status = "okay";
+
+       vdd_npu_s0: regulator@42 {
+               compatible = "rockchip,rk8602";
+               reg = <0x42>;
+               fcs,suspend-voltage-selector = <1>;
+               regulator-name = "vdd_npu_s0";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <550000>;
+               regulator-max-microvolt = <950000>;
+               regulator-ramp-delay = <2300>;
+               vin-supply = <&vcc5v0_sys>;
+
+               regulator-state-mem {
+                       regulator-off-in-suspend;
+               };
+       };
+};
+
+&i2c5 {
+       pinctrl-0 = <&i2c5m1_xfer>;
+};
+
+&i2c5m1_xfer {
+       rockchip,pins =
+               /* i2c5_scl_m1 */
+               <4 RK_PB6 9 &pcfg_pull_none_drv_level_0>,
+               /* i2c5_sda_m1 */
+               <4 RK_PB7 9 &pcfg_pull_none_drv_level_0>;
+};
+
+&i2c6 {
+       /*
+        * Mule-ATtiny can handle up to Fast mode Plus (1MHz) on I2C bus,
+        * but SOC can handle only up to (400kHz).
+        */
+       clock-frequency = <400000>;
+       status = "okay";
+
+       fan@18 {
+               compatible = "ti,amc6821";
+               reg = <0x18>;
+       };
+
+       rtc_twi: rtc@6f {
+               compatible = "isil,isl1208";
+               reg = <0x6f>;
+       };
+};
+
+&i2c6m0_xfer {
+       rockchip,pins =
+               /* i2c6_scl_m0 */
+               <0 RK_PD0 9 &pcfg_pull_none_drv_level_0>,
+               /* i2c6_sda_m0 */
+               <0 RK_PC7 9 &pcfg_pull_none_drv_level_0>;
+};
+
+&i2c7 {
+       status = "okay";
+
+       vdd_cpu_big0_s0: regulator@42 {
+               compatible = "rockchip,rk8602";
+               reg = <0x42>;
+               fcs,suspend-voltage-selector = <1>;
+               regulator-name = "vdd_cpu_big0_s0";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <550000>;
+               regulator-max-microvolt = <1050000>;
+               regulator-ramp-delay = <2300>;
+               vin-supply = <&vcc5v0_sys>;
+
+               regulator-state-mem {
+                       regulator-off-in-suspend;
+               };
+       };
+
+       vdd_cpu_big1_s0: regulator@43 {
+               compatible = "rockchip,rk8603", "rockchip,rk8602";
+               reg = <0x43>;
+               fcs,suspend-voltage-selector = <1>;
+               regulator-name = "vdd_cpu_big1_s0";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <550000>;
+               regulator-max-microvolt = <1050000>;
+               regulator-ramp-delay = <2300>;
+               vin-supply = <&vcc5v0_sys>;
+
+               regulator-state-mem {
+                       regulator-off-in-suspend;
+               };
+       };
+};
+
+&i2c7m0_xfer {
+       rockchip,pins =
+               /* i2c7_scl_m0 */
+               <1 RK_PD0 9 &pcfg_pull_none_drv_level_0>,
+               /* i2c7_sda_m0 */
+               <1 RK_PD1 9 &pcfg_pull_none_drv_level_0>;
+};
+
+&i2c8 {
+       pinctrl-0 = <&i2c8m2_xfer>;
+};
+
+&mdio0 {
+       rgmii_phy: ethernet-phy@6 {
+               /* KSZ9031 or KSZ9131 */
+               compatible = "ethernet-phy-ieee802.3-c22";
+               reg = <0x6>;
+               clocks = <&cru REFCLKO25M_ETH0_OUT>;
+       };
+};
+
+&pcie3x4 {
+       /*
+        * The board has a gpio-controlled "pcie_refclk" generator,
+        * so add it to the list of clocks.
+        */
+       clocks = <&cru ACLK_PCIE_4L_MSTR>, <&cru ACLK_PCIE_4L_SLV>,
+                <&cru ACLK_PCIE_4L_DBI>, <&cru PCLK_PCIE_4L>,
+                <&cru CLK_PCIE_AUX0>, <&cru CLK_PCIE4L_PIPE>,
+                <&pcie_refclk>;
+       clock-names = "aclk_mst", "aclk_slv",
+                     "aclk_dbi", "pclk",
+                     "aux", "pipe",
+                     "ref";
+       reset-gpios = <&gpio3 RK_PB6 GPIO_ACTIVE_HIGH>;
+};
+
+&pinctrl {
+       emmc {
+               emmc_reset: emmc-reset {
+                       rockchip,pins = <2 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+
+       ethernet {
+               eth_reset: eth-reset {
+                       rockchip,pins = <4 RK_PC3 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+
+       leds {
+               module_led_pin: module-led-pin {
+                       rockchip,pins = <1 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+};
+
+&saradc {
+       vref-supply = <&vcc_1v8_s0>;
+       status = "okay";
+};
+
+&sdhci {
+       bus-width = <8>;
+       cap-mmc-highspeed;
+       mmc-ddr-1_8v;
+       mmc-hs200-1_8v;
+       mmc-hs400-1_8v;
+       mmc-hs400-enhanced-strobe;
+       mmc-pwrseq = <&emmc_pwrseq>;
+       no-sdio;
+       no-sd;
+       non-removable;
+       pinctrl-names = "default";
+       pinctrl-0 = <&emmc_bus8 &emmc_cmd &emmc_clk &emmc_data_strobe>;
+       supports-cqe;
+       vmmc-supply = <&vcc_3v3_s3>;
+       vqmmc-supply = <&vcc_1v8_s3>;
+       status = "okay";
+};
+
+&sdmmc {
+       bus-width = <4>;
+       cap-sd-highspeed;
+       max-frequency = <150000000>;
+       vqmmc-supply = <&vccio_sd_s0>;
+};
+
+&spi0 {
+       pinctrl-0 = <&spi0m1_cs0 &spi0m1_cs1 &spi0m3_pins>;
+};
+
+&spi2 {
+       assigned-clocks = <&cru CLK_SPI2>;
+       assigned-clock-rates = <200000000>;
+       num-cs = <1>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&spi2m2_cs0 &spi2m2_pins>;
+       status = "okay";
+
+       pmic@0 {
+               compatible = "rockchip,rk806";
+               reg = <0x0>;
+               interrupt-parent = <&gpio0>;
+               interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+               gpio-controller;
+               #gpio-cells = <2>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pmic_pins>, <&rk806_dvs1_null>,
+                           <&rk806_dvs2_null>, <&rk806_dvs3_null>;
+               spi-max-frequency = <1000000>;
+               system-power-controller;
+               vcc1-supply = <&vcc5v0_sys>;
+               vcc2-supply = <&vcc5v0_sys>;
+               vcc3-supply = <&vcc5v0_sys>;
+               vcc4-supply = <&vcc5v0_sys>;
+               vcc5-supply = <&vcc5v0_sys>;
+               vcc6-supply = <&vcc5v0_sys>;
+               vcc7-supply = <&vcc5v0_sys>;
+               vcc8-supply = <&vcc5v0_sys>;
+               vcc9-supply = <&vcc5v0_sys>;
+               vcc10-supply = <&vcc5v0_sys>;
+               vcc11-supply = <&vcc_2v0_pldo_s3>;
+               vcc12-supply = <&vcc5v0_sys>;
+               vcc13-supply = <&vcc_1v1_nldo_s3>;
+               vcc14-supply = <&vcc_1v1_nldo_s3>;
+               vcca-supply = <&vcc5v0_sys>;
+
+               rk806_dvs1_null: dvs1-null-pins {
+                       pins = "gpio_pwrctrl2";
+                       function = "pin_fun0";
+               };
+
+               rk806_dvs2_null: dvs2-null-pins {
+                       pins = "gpio_pwrctrl2";
+                       function = "pin_fun0";
+               };
+
+               rk806_dvs3_null: dvs3-null-pins {
+                       pins = "gpio_pwrctrl3";
+                       function = "pin_fun0";
+               };
+
+               regulators {
+                       vdd_gpu_s0: dcdc-reg1 {
+                               regulator-boot-on;
+                               regulator-min-microvolt = <550000>;
+                               regulator-max-microvolt = <950000>;
+                               regulator-ramp-delay = <12500>;
+                               regulator-name = "vdd_gpu_s0";
+                               regulator-enable-ramp-delay = <400>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vdd_cpu_lit_s0: dcdc-reg2 {
+                               regulator-name = "vdd_cpu_lit_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <550000>;
+                               regulator-max-microvolt = <950000>;
+                               regulator-ramp-delay = <12500>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vdd_log_s0: dcdc-reg3 {
+                               regulator-name = "vdd_log_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <675000>;
+                               regulator-max-microvolt = <750000>;
+                               regulator-ramp-delay = <12500>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                                       regulator-suspend-microvolt = <750000>;
+                               };
+                       };
+
+                       vdd_vdenc_s0: dcdc-reg4 {
+                               regulator-name = "vdd_vdenc_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <550000>;
+                               regulator-max-microvolt = <950000>;
+                               regulator-ramp-delay = <12500>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vdd_ddr_s0: dcdc-reg5 {
+                               regulator-name = "vdd_ddr_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <675000>;
+                               regulator-max-microvolt = <900000>;
+                               regulator-ramp-delay = <12500>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                                       regulator-suspend-microvolt = <850000>;
+                               };
+                       };
+
+                       vdd2_ddr_s3: dcdc-reg6 {
+                               regulator-name = "vdd2_ddr_s3";
+                               regulator-always-on;
+                               regulator-boot-on;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                               };
+                       };
+
+                       vcc_2v0_pldo_s3: dcdc-reg7 {
+                               regulator-name = "vcc_2v0_pldo_s3";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <2000000>;
+                               regulator-max-microvolt = <2000000>;
+                               regulator-ramp-delay = <12500>;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <2000000>;
+                               };
+                       };
+
+                       vcc_3v3_s3: dcdc-reg8 {
+                               regulator-name = "vcc_3v3_s3";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <3300000>;
+                               };
+                       };
+
+                       vddq_ddr_s0: dcdc-reg9 {
+                               regulator-name = "vddq_ddr_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vcc_1v8_s3: dcdc-reg10 {
+                               regulator-name = "vcc_1v8_s3";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <1800000>;
+                               };
+                       };
+
+                       vcca_1v8_s0: pldo-reg1 {
+                               regulator-name = "vcca_1v8_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vcc_1v8_s0: pldo-reg2 {
+                               regulator-name = "vcc_1v8_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                                       regulator-suspend-microvolt = <1800000>;
+                               };
+                       };
+
+                       vdda_1v2_s0: pldo-reg3 {
+                               regulator-name = "vdda_1v2_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1200000>;
+                               regulator-max-microvolt = <1200000>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vcca_3v3_s0: pldo-reg4 {
+                               regulator-name = "vcca_3v3_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-ramp-delay = <12500>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vccio_sd_s0: pldo-reg5 {
+                               regulator-name = "vccio_sd_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-ramp-delay = <12500>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       pldo6_s3: pldo-reg6 {
+                               regulator-name = "pldo6_s3";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <1800000>;
+                               };
+                       };
+
+                       vdd_0v75_s3: nldo-reg1 {
+                               regulator-name = "vdd_0v75_s3";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <750000>;
+                               regulator-max-microvolt = <750000>;
+
+                               regulator-state-mem {
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <750000>;
+                               };
+                       };
+
+                       vdda_ddr_pll_s0: nldo-reg2 {
+                               regulator-name = "vdda_ddr_pll_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <850000>;
+                               regulator-max-microvolt = <850000>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                                       regulator-suspend-microvolt = <850000>;
+                               };
+                       };
+
+                       vdda_0v75_s0: nldo-reg3 {
+                               regulator-name = "vdda_0v75_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <750000>;
+                               regulator-max-microvolt = <750000>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vdda_0v85_s0: nldo-reg4 {
+                               regulator-name = "vdda_0v85_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <850000>;
+                               regulator-max-microvolt = <850000>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vdd_0v75_s0: nldo-reg5 {
+                               regulator-name = "vdd_0v75_s0";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <750000>;
+                               regulator-max-microvolt = <750000>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+               };
+       };
+};
+
+&tsadc {
+       status = "okay";
+};
+
+/* Mule-ATtiny UPDI */
+&uart4 {
+       pinctrl-0 = <&uart4m2_xfer>;
+       status = "okay";
+};