[PATCH] ARM: dts: imx: Add Y Soft IOTA Draco, Hydra and Ursa boards

From: VokÃÄ Michal
Date: Thu Nov 01 2018 - 11:43:36 EST

These are i.MX6S/DL based SBCs embedded in various Y Soft products.
All share the same board design but have slightly different HW
configuration.

Ursa
- i.MX6S SoC, 512MB RAM DDR3, 4GB eMMC, microSD
- parallel WVGA 7" LCD with touch panel
- 1x Eth (QCA8334 switch)
- USB OTG
- USB host (micro-B)

Draco
- i.MX6S SoC, 512MB RAM DDR3, 4GB eMMC, microSD
- parallel WVGA 7" LCD with touch panel
- 2x Eth (QCA8334 switch)
- USB OTG
- USB host (micro-B)
- RGB LED (I2C LP5562)
- 3.5mm audio jack + codec (LM49350)

Hydra
- i.MX6DL SoC, 2GB RAM DDR3, 4GB eMMC, microSD
- I2C OLED display, capacitive matrix keys
- 2x Eth (QCA8334 switch)
- USB OTG
- RGB LED (I2C LP5562)
- 3.5mm audio jack + codec (LM49350)
- HDMI
- miniPCIe slot

Cc: Andrew Lunn <andrew@xxxxxxx>
Signed-off-by: Michal VokÃÄ <michal.vokac@xxxxxxxxx>
---

All the boards are booting fine but not everything is enabled/supported
yet though. There is few things that will need some effort to get them
fully working.

- HDMI: nothing specific, it just does not have the priority
- OLED display: reset signal inversion, wrong display resolution,...
- capacitive keys: polled driver for MPR121 needed as we do not have
the interrupt line
- Eth switch: need tweaks in i.MX RGMII pin group control registers
- audio codec: no existing driver yet (in mainline)

So expect patches targeting the mentioned issues and updates to the dts
files enabling additional HW.

CC-ing Andrew since he was interested in this board as it has a DSA
Ethernet switch populated.

Thanks,
Michal

arch/arm/boot/dts/Makefile | 3 +
arch/arm/boot/dts/imx6dl-yapp4-common.dtsi | 535 +++++++++++++++++++++++++++++
arch/arm/boot/dts/imx6dl-yapp4-draco.dts | 57 +++
arch/arm/boot/dts/imx6dl-yapp4-hydra.dts | 33 ++
arch/arm/boot/dts/imx6dl-yapp4-ursa.dts | 53 +++
5 files changed, 681 insertions(+)
create mode 100644 arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
create mode 100644 arch/arm/boot/dts/imx6dl-yapp4-draco.dts
create mode 100644 arch/arm/boot/dts/imx6dl-yapp4-hydra.dts
create mode 100644 arch/arm/boot/dts/imx6dl-yapp4-ursa.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index b5bd3de..cf24410 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -441,6 +441,9 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
imx6dl-wandboard.dtb \
imx6dl-wandboard-revb1.dtb \
imx6dl-wandboard-revd1.dtb \
+ imx6dl-yapp4-draco.dtb \
+ imx6dl-yapp4-hydra.dtb \
+ imx6dl-yapp4-ursa.dtb \
imx6q-apalis-eval.dtb \
imx6q-apalis-ixora.dtb \
imx6q-apalis-ixora-v1.1.dtb \
diff --git a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
new file mode 100644
index 0000000..9925523
--- /dev/null
+++ b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
@@ -0,0 +1,535 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2015-2018 Y Soft Corporation, a.s.
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm1 0 500000 PWM_POLARITY_INVERTED>;
+ brightness-levels = <0 32 64 128 255>;
+ default-brightness-level = <32>;
+ num-interpolated-steps = <8>;
+ power-supply = <&sw2_reg>;
+ status = "disabled";
+ };
+
+ lcd_display: display {
+ compatible = "fsl,imx-parallel-display";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interface-pix-fmt = "rgb24";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1>;
+ status = "disabled";
+
+ port@0 {
+ reg = <0>;
+
+ lcd_display_in: endpoint {
+ remote-endpoint = <&ipu1_di0_disp0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ lcd_display_out: endpoint {
+ remote-endpoint = <&lcd_panel_in>;
+ };
+ };
+ };
+
+ panel: panel {
+ compatible = "dataimage,scf0700c48ggu18";
+ power-supply = <&sw2_reg>;
+ status = "disabled";
+
+ port {
+ lcd_panel_in: endpoint {
+ remote-endpoint = <&lcd_display_out>;
+ };
+ };
+ };
+
+ regulators {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reg_usb_otg_vbus: regulator@0 {
+ compatible = "regulator-fixed";
+ reg = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbotg_vbus>;
+ regulator-name = "usb_otg_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio3 22 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ status = "okay";
+ };
+
+ reg_usb_h1_vbus: regulator@1 {
+ compatible = "regulator-fixed";
+ reg = <1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbh1_vbus>;
+ regulator-name = "usb_h1_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio1 29 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ status = "disabled";
+ };
+
+ reg_pcie: regulator@2 {
+ compatible = "regulator-fixed";
+ reg = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcie_reg>;
+ regulator-name = "MPCIE_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio3 19 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ status = "disabled";
+ };
+ };
+};
+
+&fec {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet>;
+ phy-mode = "rgmii-id";
+ phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>;
+ phy-reset-duration = <20>;
+ phy-supply = <&sw2_reg>;
+ phy-handle = <&ethphy0>;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy_port2: phy@1 {
+ reg = <1>;
+ };
+
+ phy_port3: phy@2 {
+ reg = <2>;
+ };
+
+ switch@0 {
+ compatible = "qca,qca8334";
+ reg = <0>;
+
+ switch_ports: ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy0: port@0 {
+ reg = <0>;
+ label = "cpu";
+ phy-mode = "rgmii";
+ ethernet = <&fec>;
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "eth2";
+ phy-handle = <&phy_port2>;
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "eth1";
+ phy-handle = <&phy_port3>;
+ };
+ };
+ };
+ };
+};
+
+&i2c2 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ status = "okay";
+
+ eeprom@57 {
+ compatible = "atmel,24c128";
+ reg = <0x57>;
+ pagesize = <64>;
+ status = "okay";
+ };
+
+ leds: leds@30 {
+ compatible = "ti,lp5562";
+ label = "lp5562_leds";
+ reg = <0x30>;
+ clock-mode = /bits/ 8 <1>;
+ status = "disabled";
+
+ chan0 {
+ chan-name = "R";
+ led-cur = /bits/ 8 <0x20>;
+ max-cur = /bits/ 8 <0x60>;
+ };
+
+ chan1 {
+ chan-name = "G";
+ led-cur = /bits/ 8 <0x20>;
+ max-cur = /bits/ 8 <0x60>;
+ };
+
+ chan2 {
+ chan-name = "B";
+ led-cur = /bits/ 8 <0x20>;
+ max-cur = /bits/ 8 <0x60>;
+ };
+
+ chan3 {
+ chan-name = "W";
+ led-cur = /bits/ 8 <0x0>;
+ max-cur = /bits/ 8 <0x0>;
+ };
+ };
+
+ pfuze200@8 {
+ compatible = "fsl,pfuze200";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pmic>;
+ reg = <0x8>;
+
+ regulators {
+ sw1a_reg: sw1ab {
+ regulator-min-microvolt = <300000>;
+ regulator-max-microvolt = <1875000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <6250>;
+ };
+
+ sw2_reg: sw2 {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw3a_reg: sw3a {
+ regulator-min-microvolt = <400000>;
+ regulator-max-microvolt = <1975000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw3b_reg: sw3b {
+ regulator-min-microvolt = <400000>;
+ regulator-max-microvolt = <1975000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ swbst_reg: swbst {
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5150000>;
+ };
+
+ snvs_reg: vsnvs {
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vref_reg: vrefddr {
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vgen1_reg: vgen1 {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1550000>;
+ };
+
+ vgen2_reg: vgen2 {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1550000>;
+ };
+
+ vgen3_reg: vgen3 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vgen4_reg: vgen4 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vgen5_reg: vgen5 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vgen6_reg: vgen6 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ };
+ };
+};
+
+&iomuxc {
+ pinctrl_enet: enetgrp {
+ fsl,pins = <
+ MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1B020
+ MX6QDL_PAD_ENET_MDC__ENET_MDC 0x1B020
+ MX6QDL_PAD_RGMII_TXC__RGMII_TXC 0x1B020
+ MX6QDL_PAD_RGMII_TD0__RGMII_TD0 0x1B020
+ MX6QDL_PAD_RGMII_TD1__RGMII_TD1 0x1B020
+ MX6QDL_PAD_RGMII_TD2__RGMII_TD2 0x1B020
+ MX6QDL_PAD_RGMII_TD3__RGMII_TD3 0x1B020
+ MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL 0x1B020
+ MX6QDL_PAD_RGMII_RXC__RGMII_RXC 0x1B020
+ MX6QDL_PAD_RGMII_RD0__RGMII_RD0 0x1B020
+ MX6QDL_PAD_RGMII_RD1__RGMII_RD1 0x1B020
+ MX6QDL_PAD_RGMII_RD2__RGMII_RD2 0x1B020
+ MX6QDL_PAD_RGMII_RD3__RGMII_RD3 0x1B020
+ MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x1B020
+ MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK 0x1B010
+ MX6QDL_PAD_GPIO_16__ENET_REF_CLK 0x1B010
+ MX6QDL_PAD_ENET_CRS_DV__GPIO1_IO25 0x1B098
+ >;
+ };
+
+ pinctrl_i2c2: i2c2grp {
+ fsl,pins = <
+ MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b899
+ MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b899
+ >;
+ };
+
+ pinctrl_ipu1: ipu1grp {
+ fsl,pins = <
+ MX6QDL_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK 0x10
+ MX6QDL_PAD_DI0_PIN2__IPU1_DI0_PIN02 0x10
+ MX6QDL_PAD_DI0_PIN3__IPU1_DI0_PIN03 0x10
+ MX6QDL_PAD_DISP0_DAT0__IPU1_DISP0_DATA00 0x10
+ MX6QDL_PAD_DISP0_DAT1__IPU1_DISP0_DATA01 0x10
+ MX6QDL_PAD_DISP0_DAT2__IPU1_DISP0_DATA02 0x10
+ MX6QDL_PAD_DISP0_DAT3__IPU1_DISP0_DATA03 0x10
+ MX6QDL_PAD_DISP0_DAT4__IPU1_DISP0_DATA04 0x10
+ MX6QDL_PAD_DISP0_DAT5__IPU1_DISP0_DATA05 0x10
+ MX6QDL_PAD_DISP0_DAT6__IPU1_DISP0_DATA06 0x10
+ MX6QDL_PAD_DISP0_DAT7__IPU1_DISP0_DATA07 0x10
+ MX6QDL_PAD_DISP0_DAT8__IPU1_DISP0_DATA08 0x10
+ MX6QDL_PAD_DISP0_DAT9__IPU1_DISP0_DATA09 0x10
+ MX6QDL_PAD_DISP0_DAT10__IPU1_DISP0_DATA10 0x10
+ MX6QDL_PAD_DISP0_DAT11__IPU1_DISP0_DATA11 0x10
+ MX6QDL_PAD_DISP0_DAT12__IPU1_DISP0_DATA12 0x10
+ MX6QDL_PAD_DISP0_DAT13__IPU1_DISP0_DATA13 0x10
+ MX6QDL_PAD_DISP0_DAT14__IPU1_DISP0_DATA14 0x10
+ MX6QDL_PAD_DISP0_DAT15__IPU1_DISP0_DATA15 0x10
+ MX6QDL_PAD_DISP0_DAT16__IPU1_DISP0_DATA16 0x10
+ MX6QDL_PAD_DISP0_DAT17__IPU1_DISP0_DATA17 0x10
+ MX6QDL_PAD_DISP0_DAT18__IPU1_DISP0_DATA18 0x10
+ MX6QDL_PAD_DISP0_DAT19__IPU1_DISP0_DATA19 0x10
+ MX6QDL_PAD_DISP0_DAT20__IPU1_DISP0_DATA20 0x10
+ MX6QDL_PAD_DISP0_DAT21__IPU1_DISP0_DATA21 0x10
+ MX6QDL_PAD_DISP0_DAT22__IPU1_DISP0_DATA22 0x10
+ MX6QDL_PAD_DISP0_DAT23__IPU1_DISP0_DATA23 0x10
+ >;
+ };
+
+ pinctrl_pcie: pciegrp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x1b098
+ MX6QDL_PAD_KEY_COL4__GPIO4_IO14 0x1b098
+ MX6QDL_PAD_CSI0_DATA_EN__GPIO5_IO20 0x1b098
+ >;
+ };
+
+ pinctrl_pcie_reg: pciereggrp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D19__GPIO3_IO19 0x1b098
+ >;
+ };
+
+ pinctrl_pmic: pmicgrp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_18__GPIO7_IO13 0x1b098
+ >;
+ };
+
+ pinctrl_backlight_pwm: pwm1grp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_9__PWM1_OUT 0x8
+ >;
+ };
+
+ pinctrl_uart1: uart1grp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA 0x1b0a8
+ MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA 0x1b0a8
+ >;
+ };
+
+ pinctrl_usbh1: usbh1grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D30__USB_H1_OC 0x1b098
+ >;
+ };
+
+ pinctrl_usbh1_vbus: usbh1-vbus {
+ fsl,pins = <
+ MX6QDL_PAD_ENET_TXD1__GPIO1_IO29 0x98
+ >;
+ };
+
+ pinctrl_usbotg: usbotggrp {
+ fsl,pins = <
+ MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID 0x1b098
+ MX6QDL_PAD_EIM_D21__USB_OTG_OC 0x1b098
+ >;
+ };
+
+ pinctrl_usbotg_vbus: usbotg-vbus {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D22__GPIO3_IO22 0x98
+ >;
+ };
+
+ pinctrl_usdhc3: usdhc3grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_A16__GPIO2_IO22 0x1b018
+ MX6QDL_PAD_SD3_RST__GPIO7_IO08 0x1b018
+ MX6QDL_PAD_SD3_CMD__SD3_CMD 0x17059
+ MX6QDL_PAD_SD3_CLK__SD3_CLK 0x10059
+ MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17059
+ MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17059
+ MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17059
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17059
+ >;
+ };
+
+ pinctrl_usdhc4: usdhc4grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD4_CMD__SD4_CMD 0x1f069
+ MX6QDL_PAD_SD4_CLK__SD4_CLK 0x10069
+ MX6QDL_PAD_SD4_DAT0__SD4_DATA0 0x17069
+ MX6QDL_PAD_SD4_DAT1__SD4_DATA1 0x17069
+ MX6QDL_PAD_SD4_DAT2__SD4_DATA2 0x17069
+ MX6QDL_PAD_SD4_DAT3__SD4_DATA3 0x17069
+ MX6QDL_PAD_SD4_DAT4__SD4_DATA4 0x17069
+ MX6QDL_PAD_SD4_DAT5__SD4_DATA5 0x17069
+ MX6QDL_PAD_SD4_DAT6__SD4_DATA6 0x17069
+ MX6QDL_PAD_SD4_DAT7__SD4_DATA7 0x17069
+ >;
+ };
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_1__WDOG2_B 0x1b0b0
+ >;
+ };
+};
+
+&ipu1_di0_disp0 {
+ remote-endpoint = <&lcd_display_in>;
+};
+
+&pcie {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcie>;
+ reset-gpio = <&gpio7 12 GPIO_ACTIVE_LOW>;
+ vpcie-supply = <&reg_pcie>;
+ status = "disabled";
+};
+
+&pwm1 {
+ #pwm-cells = <3>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_backlight_pwm>;
+ status = "disabled";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
+ status = "okay";
+};
+
+&usbh1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbh1>;
+ vbus-supply = <&reg_usb_h1_vbus>;
+ status = "disabled";
+};
+
+&usbotg {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbotg>;
+ vbus-supply = <&reg_usb_otg_vbus>;
+ srp-disable;
+ hnp-disable;
+ adp-disable;
+ status = "okay";
+};
+
+&usbphy1 {
+ fsl,tx-d-cal = <106>;
+ status = "okay";
+};
+
+&usbphy2 {
+ fsl,tx-d-cal = <109>;
+ status = "disabled";
+};
+
+&usdhc3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc3>;
+ bus-width = <4>;
+ cd-gpios = <&gpio7 8 GPIO_ACTIVE_LOW>;
+ wp-gpios = <&gpio2 22 GPIO_ACTIVE_HIGH>;
+ no-1-8-v;
+ keep-power-in-suspend;
+ enable-sdio-wakeup;
+ vmmc-supply = <&sw2_reg>;
+ status = "disabled";
+};
+
+&usdhc4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc4>;
+ bus-width = <8>;
+ non-removable;
+ no-1-8-v;
+ keep-power-in-suspend;
+ vmmc-supply = <&sw2_reg>;
+ status = "okay";
+};
+
+&wdog1 {
+ status = "disabled";
+};
+
+&wdog2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ fsl,ext-reset-output;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/imx6dl-yapp4-draco.dts b/arch/arm/boot/dts/imx6dl-yapp4-draco.dts
new file mode 100644
index 0000000..fb62f31
--- /dev/null
+++ b/arch/arm/boot/dts/imx6dl-yapp4-draco.dts
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2015-2018 Y Soft Corporation, a.s.
+
+/dts-v1/;
+
+#include "imx6dl.dtsi"
+#include "imx6dl-yapp4-common.dtsi"
+
+/ {
+ model = "Y Soft IOTA Draco i.MX6Solo board";
+ compatible = "ysoft,imx6dl-yapp4-draco", "fsl,imx6dl";
+
+ cpus {
+ /delete-node/ cpu@1;
+ };
+
+ memory@10000000 {
+ reg = <0x10000000 0x20000000>;
+ };
+};
+
+&backlight {
+ status = "okay";
+};
+
+&lcd_display {
+ status = "okay";
+};
+
+&leds {
+ status = "okay";
+};
+
+&panel {
+ status = "okay";
+};
+
+&pwm1 {
+ status = "okay";
+};
+
+&reg_usb_h1_vbus {
+ status = "okay";
+};
+
+&usbh1 {
+ status = "okay";
+};
+
+&usbphy2 {
+ status = "okay";
+};
+
+&usdhc3 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/imx6dl-yapp4-hydra.dts b/arch/arm/boot/dts/imx6dl-yapp4-hydra.dts
new file mode 100644
index 0000000..799fb4c
--- /dev/null
+++ b/arch/arm/boot/dts/imx6dl-yapp4-hydra.dts
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2015-2018 Y Soft Corporation, a.s.
+
+/dts-v1/;
+
+#include "imx6dl.dtsi"
+#include "imx6dl-yapp4-common.dtsi"
+
+/ {
+ model = "Y Soft IOTA Hydra i.MX6DualLite board";
+ compatible = "ysoft,imx6dl-yapp4-hydra", "fsl,imx6dl";
+
+ memory@10000000 {
+ reg = <0x10000000 0x80000000>;
+ };
+};
+
+&leds {
+ status = "okay";
+};
+
+&pcie {
+ status = "okay";
+};
+
+&reg_pcie {
+ status = "okay";
+};
+
+&usdhc3 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/imx6dl-yapp4-ursa.dts b/arch/arm/boot/dts/imx6dl-yapp4-ursa.dts
new file mode 100644
index 0000000..23af972
--- /dev/null
+++ b/arch/arm/boot/dts/imx6dl-yapp4-ursa.dts
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2015-2018 Y Soft Corporation, a.s.
+
+/dts-v1/;
+
+#include "imx6dl.dtsi"
+#include "imx6dl-yapp4-common.dtsi"
+
+/ {
+ model = "Y Soft IOTA Ursa i.MX6Solo board";
+ compatible = "ysoft,imx6dl-yapp4-ursa", "fsl,imx6dl";
+
+ cpus {
+ /delete-node/ cpu@1;
+ };
+
+ memory@10000000 {
+ reg = <0x10000000 0x20000000>;
+ };
+};
+
+&backlight {
+ status = "okay";
+};
+
+&lcd_display {
+ status = "okay";
+};
+
+&panel {
+ status = "okay";
+};
+
+&pwm1 {
+ status = "okay";
+};
+
+&reg_usb_h1_vbus {
+ status = "okay";
+};
+
+&switch_ports {
+ /delete-node/ port@2;
+};
+
+&usbh1 {
+ status = "okay";
+};
+
+&usbphy2 {
+ status = "okay";
+};
--
2.1.4