The HINLINK H28K (LinkStar H28K) is a SBC with the
Rockchip RK3528 SoC. It has the following features:

- 1x USB 2.0
- 8/32GB eMMC
- 1/2/4GB LPDDR4
- MicroSD card slot
- 1x 1GbE RTL8111H Ethernet
- 1x 1GbE RTL8211F Ethernet

Signed-off-by: Chukun Pan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Heiko Stuebner <[email protected]>

[ upstream commit: 5fd91b4f3ef20ecdc6db7a9e5c831209c7042c08 ]

(cherry picked from commit 056a3d3a36a2f0bbcfc9019b57dbbbf9ee33929e)
---
 .../arm64/rockchip/rk3528-hinlink-h28k.dts    | 318 ++++++++++++++++++
 1 file changed, 318 insertions(+)
 create mode 100644 dts/upstream/src/arm64/rockchip/rk3528-hinlink-h28k.dts

diff --git a/dts/upstream/src/arm64/rockchip/rk3528-hinlink-h28k.dts 
b/dts/upstream/src/arm64/rockchip/rk3528-hinlink-h28k.dts
new file mode 100644
index 000000000000..0ec50e9156eb
--- /dev/null
+++ b/dts/upstream/src/arm64/rockchip/rk3528-hinlink-h28k.dts
@@ -0,0 +1,318 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pwm/pwm.h>
+#include "rk3528.dtsi"
+
+/ {
+       model = "HINLINK H28K";
+       compatible = "hinlink,h28k", "rockchip,rk3528";
+
+       aliases {
+               ethernet0 = &gmac1;
+               mmc0 = &sdhci;
+               mmc1 = &sdmmc;
+               serial0 = &uart0;
+       };
+
+       chosen {
+               stdout-path = "serial0:1500000n8";
+       };
+
+       keys {
+               compatible = "adc-keys";
+               io-channels = <&saradc 0>;
+               io-channel-names = "buttons";
+               keyup-threshold-microvolt = <1800000>;
+               poll-interval = <100>;
+
+               button-boot {
+                       label = "BOOT";
+                       linux,code = <KEY_SETUP>;
+                       press-threshold-microvolt = <0>;
+               };
+       };
+
+       leds {
+               compatible = "gpio-leds";
+               pinctrl-names = "default";
+               pinctrl-0 = <&lan_led>, <&wan_led>, <&work_led>;
+
+               led-0 {
+                       color = <LED_COLOR_ID_AMBER>;
+                       function = LED_FUNCTION_LAN;
+                       gpios = <&gpio4 RK_PC1 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "netdev";
+               };
+
+               led-1 {
+                       color = <LED_COLOR_ID_BLUE>;
+                       function = LED_FUNCTION_WAN;
+                       gpios = <&gpio4 RK_PC0 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "netdev";
+               };
+
+               led-2 {
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_STATUS;
+                       gpios = <&gpio4 RK_PB7 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "default-on";
+               };
+       };
+
+       vdd_0v9: regulator-0v9-vdd {
+               compatible = "regulator-fixed";
+               regulator-name = "vdd_0v9";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <900000>;
+               regulator-max-microvolt = <900000>;
+               vin-supply = <&vcc5v0_sys>;
+       };
+
+       vcc_ddr: regulator-1v1-vcc-ddr {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc_ddr";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <1100000>;
+               regulator-max-microvolt = <1100000>;
+               vin-supply = <&vcc5v0_sys>;
+       };
+
+       vcc_1v8: regulator-1v8-vcc {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc_1v8";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               vin-supply = <&vcc_3v3>;
+       };
+
+       vcc_3v3: regulator-3v3-vcc {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc_3v3";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               vin-supply = <&vcc5v0_sys>;
+       };
+
+       vcc3v3_sd: regulator-3v3-vcc-sd {
+               compatible = "regulator-fixed";
+               gpios = <&gpio4 RK_PA1 GPIO_ACTIVE_LOW>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&sdmmc_pwren_l>;
+               regulator-name = "vcc3v3_sd";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               vin-supply = <&vcc_3v3>;
+       };
+
+       vcc5v0_sys: regulator-5v0-vcc-sys {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc5v0_sys";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+       };
+
+       vccio_sd: regulator-vccio-sd {
+               compatible = "regulator-gpio";
+               gpios = <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&sdmmc_vol_ctrl_h>;
+               regulator-name = "vccio_sd";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+               states = <1800000 0x0>, <3300000 0x1>;
+               vin-supply = <&vcc5v0_sys>;
+       };
+
+       vdd_arm: regulator-vdd-arm {
+               compatible = "pwm-regulator";
+               pwms = <&pwm1 0 5000 PWM_POLARITY_INVERTED>;
+               pwm-supply = <&vcc5v0_sys>;
+               regulator-name = "vdd_arm";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <746000>;
+               regulator-max-microvolt = <1201000>;
+               regulator-settling-time-up-us = <250>;
+       };
+
+       vdd_logic: regulator-vdd-logic {
+               compatible = "pwm-regulator";
+               pwms = <&pwm2 0 5000 PWM_POLARITY_INVERTED>;
+               pwm-supply = <&vcc5v0_sys>;
+               regulator-name = "vdd_logic";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <705000>;
+               regulator-max-microvolt = <1006000>;
+               regulator-settling-time-up-us = <250>;
+       };
+};
+
+&combphy {
+       status = "okay";
+};
+
+&cpu0 {
+       cpu-supply = <&vdd_arm>;
+};
+
+&cpu1 {
+       cpu-supply = <&vdd_arm>;
+};
+
+&cpu2 {
+       cpu-supply = <&vdd_arm>;
+};
+
+&cpu3 {
+       cpu-supply = <&vdd_arm>;
+};
+
+&gmac1 {
+       clock_in_out = "output";
+       phy-handle = <&rgmii_phy>;
+       phy-mode = "rgmii-id";
+       phy-supply = <&vcc_3v3>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&rgmii_miim>,
+                   <&rgmii_tx_bus2>,
+                   <&rgmii_rx_bus2>,
+                   <&rgmii_rgmii_clk>,
+                   <&rgmii_rgmii_bus>;
+       status = "okay";
+};
+
+&gpu {
+       mali-supply = <&vdd_logic>;
+       status = "okay";
+};
+
+&mdio1 {
+       rgmii_phy: ethernet-phy@1 {
+               compatible = "ethernet-phy-ieee802.3-c22";
+               reg = <0x1>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&gmac1_rstn_l>;
+               reset-assert-us = <20000>;
+               reset-deassert-us = <100000>;
+               reset-gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_LOW>;
+       };
+};
+
+&pcie {
+       pinctrl-names = "default";
+       pinctrl-0 = <&rtl8111hs_isolateb_l>;
+       reset-gpios = <&gpio4 RK_PA3 GPIO_ACTIVE_HIGH>;
+       vpcie3v3-supply = <&vcc_3v3>;
+       status = "okay";
+};
+
+&pinctrl {
+       gmac {
+               gmac1_rstn_l: gmac1-rstn-l {
+                       rockchip,pins = <4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+
+       leds {
+               lan_led: lan-led {
+                       rockchip,pins = <4 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+
+               wan_led: wan-led {
+                       rockchip,pins = <4 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+
+               work_led: work-led {
+                       rockchip,pins = <4 RK_PB7 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+
+       pcie {
+               rtl8111hs_isolateb_l: rtl8111hs-isolateb-l {
+                       rockchip,pins = <4 RK_PA6 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+       };
+
+       sdmmc {
+               sdmmc_pwren_l: sdmmc-pwren-l {
+                       rockchip,pins = <4 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+
+               sdmmc_vol_ctrl_h: sdmmc-vol-ctrl-h {
+                       rockchip,pins = <4 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+};
+
+&pwm1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pwm1m0_pins>;
+       status = "okay";
+};
+
+&pwm2 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pwm2m0_pins>;
+       status = "okay";
+};
+
+&saradc {
+       vref-supply = <&vcc_1v8>;
+       status = "okay";
+};
+
+&sdhci {
+       bus-width = <8>;
+       cap-mmc-highspeed;
+       mmc-hs200-1_8v;
+       non-removable;
+       vmmc-supply = <&vcc_3v3>;
+       vqmmc-supply = <&vcc_1v8>;
+       status = "okay";
+};
+
+&sdmmc {
+       bus-width = <4>;
+       cap-sd-highspeed;
+       disable-wp;
+       sd-uhs-sdr104;
+       vmmc-supply = <&vcc3v3_sd>;
+       vqmmc-supply = <&vccio_sd>;
+       status = "okay";
+};
+
+&uart0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart0m0_xfer>;
+       status = "okay";
+};
+
+&usb2phy {
+       status = "okay";
+};
+
+&usb2phy_host {
+       phy-supply = <&vcc5v0_sys>;
+       status = "okay";
+};
+
+&usb_host0_ehci {
+       status = "okay";
+};
+
+&usb_host0_ohci {
+       status = "okay";
+};
-- 
2.34.1

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