arm64: zynqmp: Add support for Xilinx Kria SOM board

There are couple of revisions of SOMs (k26) and associated carrier cards
(kv260).
SOM itself has two major versions:
sm-k26 - SOM with EMMC
smk-k26 - SOM without EMMC used on starter kit with preprogrammed firmware
in QSPI.

SOMs are describing only devices available on the SOM or connections which
are described in specification (for example UART, fwuen).

When SOM boots out of QSPI it uses limited number of peripherals defined by
the specification and present in sm(k)-k26 dtses.
Then a carrier card (CC) detection is happening and DT overlay is applied
to brings new functionality. That's why DT overlays are used. The name is
composed together with SOM name and CC name that's why DT overlays with
these names are generated to make sure they can be used together.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1ba32590670434b650bacf6410a65579dd30b38b.1632294439.git.michal.simek@xilinx.com

Documentation/devicetree/bindings/arm/xilinx.yaml

@@ -116,6 +116,22 @@ properties:
           - const: xlnx,zynqmp-zcu111
           - const: xlnx,zynqmp
 
+      - description: Xilinx Kria SOMs
+        items:
+          - const: xlnx,zynqmp-sm-k26-rev1
+          - const: xlnx,zynqmp-sm-k26-revB
+          - const: xlnx,zynqmp-sm-k26-revA
+          - const: xlnx,zynqmp-sm-k26
+          - const: xlnx,zynqmp
+
+      - description: Xilinx Kria SOMs (starter)
+        items:
+          - const: xlnx,zynqmp-smk-k26-rev1
+          - const: xlnx,zynqmp-smk-k26-revB
+          - const: xlnx,zynqmp-smk-k26-revA
+          - const: xlnx,zynqmp-smk-k26
+          - const: xlnx,zynqmp
+
 additionalProperties: true
 
 ...

arch/arm64/boot/dts/xilinx/Makefile

@@ -17,3 +17,16 @@ dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-zcu104-revA.dtb
 dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-zcu104-revC.dtb
 dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-zcu106-revA.dtb
 dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-zcu111-revA.dtb
+
+dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-sm-k26-revA.dtb
+dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-smk-k26-revA.dtb
+
+sm-k26-revA-sck-kv-g-revA-dtbs := zynqmp-sm-k26-revA.dtb zynqmp-sck-kv-g-revA.dtbo
+sm-k26-revA-sck-kv-g-revB-dtbs := zynqmp-sm-k26-revA.dtb zynqmp-sck-kv-g-revB.dtbo
+smk-k26-revA-sm-k26-revA-sck-kv-g-revA-dtbs := zynqmp-smk-k26-revA.dtb zynqmp-sck-kv-g-revA.dtbo
+smk-k26-revA-sm-k26-revA-sck-kv-g-revB-dtbs := zynqmp-smk-k26-revA.dtb zynqmp-sck-kv-g-revB.dtbo
+
+dtb-$(CONFIG_ARCH_ZYNQMP) += sm-k26-revA-sck-kv-g-revA.dtb
+dtb-$(CONFIG_ARCH_ZYNQMP) += sm-k26-revA-sck-kv-g-revB.dtb
+dtb-$(CONFIG_ARCH_ZYNQMP) += smk-k26-revA-sm-k26-revA-sck-kv-g-revA.dtb
+dtb-$(CONFIG_ARCH_ZYNQMP) += smk-k26-revA-sm-k26-revA-sck-kv-g-revB.dtb

arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dts file for KV260 revA Carrier Card
+ *
+ * (C) Copyright 2020 - 2021, Xilinx, Inc.
+ *
+ * SD level shifter:
+ * "A" – A01 board un-modified (NXP)
+ * "Y" – A01 board modified with legacy interposer (Nexperia)
+ * "Z" – A01 board modified with Diode interposer
+ *
+ * Michal Simek <michal.simek@xilinx.com>
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/net/ti-dp83867.h>
+#include <dt-bindings/phy/phy.h>
+#include <dt-bindings/pinctrl/pinctrl-zynqmp.h>
+
+/dts-v1/;
+/plugin/;
+
+&i2c1 { /* I2C_SCK C23/C24 - MIO from SOM */
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default", "gpio";
+	pinctrl-0 = <&pinctrl_i2c1_default>;
+	pinctrl-1 = <&pinctrl_i2c1_gpio>;
+	scl-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
+	sda-gpios = <&gpio 25 GPIO_ACTIVE_HIGH>;
+
+	/* u14 - 0x40 - ina260 */
+	/* u27 - 0xe0 - STDP4320 DP/HDMI splitter */
+};
+
+&amba {
+	si5332_0: si5332_0 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <125000000>;
+	};
+
+	si5332_1: si5332_1 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <25000000>;
+	};
+
+	si5332_2: si5332_2 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <48000000>;
+	};
+
+	si5332_3: si5332_3 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24000000>;
+	};
+
+	si5332_4: si5332_4 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <26000000>;
+	};
+
+	si5332_5: si5332_5 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <27000000>;
+	};
+};
+
+/* DP/USB 3.0 and SATA */
+&psgtr {
+	status = "okay";
+	/* pcie, usb3, sata */
+	clocks = <&si5332_5>, <&si5332_4>, <&si5332_0>;
+	clock-names = "ref0", "ref1", "ref2";
+};
+
+&sata {
+	status = "okay";
+	/* SATA OOB timing settings */
+	ceva,p0-cominit-params = /bits/ 8 <0x18 0x40 0x18 0x28>;
+	ceva,p0-comwake-params = /bits/ 8 <0x06 0x14 0x08 0x0E>;
+	ceva,p0-burst-params = /bits/ 8 <0x13 0x08 0x4A 0x06>;
+	ceva,p0-retry-params = /bits/ 16 <0x96A4 0x3FFC>;
+	ceva,p1-cominit-params = /bits/ 8 <0x18 0x40 0x18 0x28>;
+	ceva,p1-comwake-params = /bits/ 8 <0x06 0x14 0x08 0x0E>;
+	ceva,p1-burst-params = /bits/ 8 <0x13 0x08 0x4A 0x06>;
+	ceva,p1-retry-params = /bits/ 16 <0x96A4 0x3FFC>;
+	phy-names = "sata-phy";
+	phys = <&psgtr 3 PHY_TYPE_SATA 1 2>;
+};
+
+&zynqmp_dpsub {
+	status = "disabled";
+	phy-names = "dp-phy0", "dp-phy1";
+	phys = <&psgtr 1 PHY_TYPE_DP 0 0>, <&psgtr 0 PHY_TYPE_DP 1 0>;
+};
+
+&zynqmp_dpdma {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usb0_default>;
+	phy-names = "usb3-phy";
+	phys = <&psgtr 2 PHY_TYPE_USB3 0 1>;
+	/* missing usb5744 - u43 */
+};
+
+&dwc3_0 {
+	status = "okay";
+	dr_mode = "host";
+	snps,usb3_lpm_capable;
+	maximum-speed = "super-speed";
+};
+
+&sdhci1 { /* on CC with tuned parameters */
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sdhci1_default>;
+	/*
+	 * SD 3.0 requires level shifter and this property
+	 * should be removed if the board has level shifter and
+	 * need to work in UHS mode
+	 */
+	no-1-8-v;
+	disable-wp;
+	xlnx,mio-bank = <1>;
+};
+
+&gem3 { /* required by spec */
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gem3_default>;
+	phy-handle = <&phy0>;
+	phy-mode = "rgmii-id";
+
+	mdio: mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reset-gpios = <&gpio 38 GPIO_ACTIVE_LOW>;
+		reset-delay-us = <2>;
+
+		phy0: ethernet-phy@1 {
+			#phy-cells = <1>;
+			reg = <1>;
+			ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
+			ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_75_NS>;
+			ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+			ti,dp83867-rxctrl-strap-quirk;
+		};
+	};
+};
+
+&pinctrl0 { /* required by spec */
+	status = "okay";
+
+	pinctrl_uart1_default: uart1-default {
+		conf {
+			groups = "uart1_9_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+			drive-strength = <12>;
+		};
+
+		conf-rx {
+			pins = "MIO37";
+			bias-high-impedance;
+		};
+
+		conf-tx {
+			pins = "MIO36";
+			bias-disable;
+		};
+
+		mux {
+			groups = "uart1_9_grp";
+			function = "uart1";
+		};
+	};
+
+	pinctrl_i2c1_default: i2c1-default {
+		conf {
+			groups = "i2c1_6_grp";
+			bias-pull-up;
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+		};
+
+		mux {
+			groups = "i2c1_6_grp";
+			function = "i2c1";
+		};
+	};
+
+	pinctrl_i2c1_gpio: i2c1-gpio {
+		conf {
+			groups = "gpio0_24_grp", "gpio0_25_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+		};
+
+		mux {
+			groups = "gpio0_24_grp", "gpio0_25_grp";
+			function = "gpio0";
+		};
+	};
+
+	pinctrl_gem3_default: gem3-default {
+		conf {
+			groups = "ethernet3_0_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+		};
+
+		conf-rx {
+			pins = "MIO70", "MIO72", "MIO74";
+			bias-high-impedance;
+			low-power-disable;
+		};
+
+		conf-bootstrap {
+			pins = "MIO71", "MIO73", "MIO75";
+			bias-disable;
+			low-power-disable;
+		};
+
+		conf-tx {
+			pins = "MIO64", "MIO65", "MIO66",
+				"MIO67", "MIO68", "MIO69";
+			bias-disable;
+			low-power-enable;
+		};
+
+		conf-mdio {
+			groups = "mdio3_0_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+			bias-disable;
+		};
+
+		mux-mdio {
+			function = "mdio3";
+			groups = "mdio3_0_grp";
+		};
+
+		mux {
+			function = "ethernet3";
+			groups = "ethernet3_0_grp";
+		};
+	};
+
+	pinctrl_usb0_default: usb0-default {
+		conf {
+			groups = "usb0_0_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+		};
+
+		conf-rx {
+			pins = "MIO52", "MIO53", "MIO55";
+			bias-high-impedance;
+		};
+
+		conf-tx {
+			pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
+			"MIO60", "MIO61", "MIO62", "MIO63";
+			bias-disable;
+		};
+
+		mux {
+			groups = "usb0_0_grp";
+			function = "usb0";
+		};
+	};
+
+	pinctrl_sdhci1_default: sdhci1-default {
+		conf {
+			groups = "sdio1_0_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+			bias-disable;
+		};
+
+		conf-cd {
+			groups = "sdio1_cd_0_grp";
+			bias-high-impedance;
+			bias-pull-up;
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+		};
+
+		mux-cd {
+			groups = "sdio1_cd_0_grp";
+			function = "sdio1_cd";
+		};
+
+		mux {
+			groups = "sdio1_0_grp";
+			function = "sdio1";
+		};
+	};
+};
+
+&uart1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1_default>;
+};

arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dts file for KV260 revA Carrier Card
+ *
+ * (C) Copyright 2020 - 2021, Xilinx, Inc.
+ *
+ * Michal Simek <michal.simek@xilinx.com>
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/net/ti-dp83867.h>
+#include <dt-bindings/phy/phy.h>
+#include <dt-bindings/pinctrl/pinctrl-zynqmp.h>
+
+/dts-v1/;
+/plugin/;
+
+&i2c1 { /* I2C_SCK C23/C24 - MIO from SOM */
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default", "gpio";
+	pinctrl-0 = <&pinctrl_i2c1_default>;
+	pinctrl-1 = <&pinctrl_i2c1_gpio>;
+	scl-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
+	sda-gpios = <&gpio 25 GPIO_ACTIVE_HIGH>;
+
+	/* u14 - 0x40 - ina260 */
+	/* u43 - 0x2d - usb5744 */
+	/* u27 - 0xe0 - STDP4320 DP/HDMI splitter */
+};
+
+&amba {
+	si5332_0: si5332_0 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <125000000>;
+	};
+
+	si5332_1: si5332_1 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <25000000>;
+	};
+
+	si5332_2: si5332_2 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <48000000>;
+	};
+
+	si5332_3: si5332_3 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24000000>;
+	};
+
+	si5332_4: si5332_4 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <26000000>;
+	};
+
+	si5332_5: si5332_5 { /* u17 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <27000000>;
+	};
+};
+
+/* DP/USB 3.0 */
+&psgtr {
+	status = "okay";
+	/* pcie, usb3, sata */
+	clocks = <&si5332_5>, <&si5332_4>, <&si5332_0>;
+	clock-names = "ref0", "ref1", "ref2";
+};
+
+&zynqmp_dpsub {
+	status = "disabled";
+	phy-names = "dp-phy0", "dp-phy1";
+	phys = <&psgtr 1 PHY_TYPE_DP 0 0>, <&psgtr 0 PHY_TYPE_DP 1 0>;
+};
+
+&zynqmp_dpdma {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usb0_default>;
+	phy-names = "usb3-phy";
+	phys = <&psgtr 2 PHY_TYPE_USB3 0 1>;
+};
+
+&dwc3_0 {
+	status = "okay";
+	dr_mode = "host";
+	snps,usb3_lpm_capable;
+	maximum-speed = "super-speed";
+};
+
+&sdhci1 { /* on CC with tuned parameters */
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sdhci1_default>;
+	/*
+	 * SD 3.0 requires level shifter and this property
+	 * should be removed if the board has level shifter and
+	 * need to work in UHS mode
+	 */
+	no-1-8-v;
+	disable-wp;
+	xlnx,mio-bank = <1>;
+	clk-phase-sd-hs = <126>, <60>;
+	clk-phase-uhs-sdr25 = <120>, <60>;
+	clk-phase-uhs-ddr50 = <126>, <48>;
+};
+
+&gem3 { /* required by spec */
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gem3_default>;
+	phy-handle = <&phy0>;
+	phy-mode = "rgmii-id";
+
+	mdio: mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reset-gpios = <&gpio 38 GPIO_ACTIVE_LOW>;
+		reset-delay-us = <2>;
+
+		phy0: ethernet-phy@1 {
+			#phy-cells = <1>;
+			reg = <1>;
+			ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
+			ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_75_NS>;
+			ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+			ti,dp83867-rxctrl-strap-quirk;
+		};
+	};
+};
+
+&pinctrl0 { /* required by spec */
+	status = "okay";
+
+	pinctrl_uart1_default: uart1-default {
+		conf {
+			groups = "uart1_9_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+			drive-strength = <12>;
+		};
+
+		conf-rx {
+			pins = "MIO37";
+			bias-high-impedance;
+		};
+
+		conf-tx {
+			pins = "MIO36";
+			bias-disable;
+		};
+
+		mux {
+			groups = "uart1_9_grp";
+			function = "uart1";
+		};
+	};
+
+	pinctrl_i2c1_default: i2c1-default {
+		conf {
+			groups = "i2c1_6_grp";
+			bias-pull-up;
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+		};
+
+		mux {
+			groups = "i2c1_6_grp";
+			function = "i2c1";
+		};
+	};
+
+	pinctrl_i2c1_gpio: i2c1-gpio {
+		conf {
+			groups = "gpio0_24_grp", "gpio0_25_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+		};
+
+		mux {
+			groups = "gpio0_24_grp", "gpio0_25_grp";
+			function = "gpio0";
+		};
+	};
+
+	pinctrl_gem3_default: gem3-default {
+		conf {
+			groups = "ethernet3_0_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+		};
+
+		conf-rx {
+			pins = "MIO70", "MIO72", "MIO74";
+			bias-high-impedance;
+			low-power-disable;
+		};
+
+		conf-bootstrap {
+			pins = "MIO71", "MIO73", "MIO75";
+			bias-disable;
+			low-power-disable;
+		};
+
+		conf-tx {
+			pins = "MIO64", "MIO65", "MIO66",
+				"MIO67", "MIO68", "MIO69";
+			bias-disable;
+			low-power-enable;
+		};
+
+		conf-mdio {
+			groups = "mdio3_0_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+			bias-disable;
+		};
+
+		mux-mdio {
+			function = "mdio3";
+			groups = "mdio3_0_grp";
+		};
+
+		mux {
+			function = "ethernet3";
+			groups = "ethernet3_0_grp";
+		};
+	};
+
+	pinctrl_usb0_default: usb0-default {
+		conf {
+			groups = "usb0_0_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+		};
+
+		conf-rx {
+			pins = "MIO52", "MIO53", "MIO55";
+			bias-high-impedance;
+		};
+
+		conf-tx {
+			pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
+			"MIO60", "MIO61", "MIO62", "MIO63";
+			bias-disable;
+		};
+
+		mux {
+			groups = "usb0_0_grp";
+			function = "usb0";
+		};
+	};
+
+	pinctrl_sdhci1_default: sdhci1-default {
+		conf {
+			groups = "sdio1_0_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+			bias-disable;
+		};
+
+		conf-cd {
+			groups = "sdio1_cd_0_grp";
+			bias-high-impedance;
+			bias-pull-up;
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+		};
+
+		mux-cd {
+			groups = "sdio1_cd_0_grp";
+			function = "sdio1_cd";
+		};
+
+		mux {
+			groups = "sdio1_0_grp";
+			function = "sdio1";
+		};
+	};
+};
+
+&uart1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1_default>;
+};

arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dts file for Xilinx ZynqMP SM-K26 rev1/B/A
+ *
+ * (C) Copyright 2020 - 2021, Xilinx, Inc.
+ *
+ * Michal Simek <michal.simek@xilinx.com>
+ */
+
+/dts-v1/;
+
+#include "zynqmp.dtsi"
+#include "zynqmp-clk-ccf.dtsi"
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/phy/phy.h>
+
+/ {
+	model = "ZynqMP SM-K26 Rev1/B/A";
+	compatible = "xlnx,zynqmp-sm-k26-rev1", "xlnx,zynqmp-sm-k26-revB",
+		     "xlnx,zynqmp-sm-k26-revA", "xlnx,zynqmp-sm-k26",
+		     "xlnx,zynqmp";
+
+	aliases {
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		mmc0 = &sdhci0;
+		mmc1 = &sdhci1;
+		nvmem0 = &eeprom;
+		nvmem1 = &eeprom_cc;
+		rtc0 = &rtc;
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &dcc;
+		spi0 = &qspi;
+		spi1 = &spi0;
+		spi2 = &spi1;
+		usb0 = &usb0;
+		usb1 = &usb1;
+	};
+
+	chosen {
+		bootargs = "earlycon";
+		stdout-path = "serial1:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory"; /* 4GB */
+		reg = <0x0 0x0 0x0 0x80000000>, <0x8 0x00000000 0x0 0x80000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		autorepeat;
+		fwuen {
+			label = "fwuen";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		ds35-led {
+			label = "heartbeat";
+			gpios = <&gpio 7 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		ds36-led {
+			label = "vbus_det";
+			gpios = <&gpio 8 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+		};
+	};
+};
+
+&uart1 { /* MIO36/MIO37 */
+	status = "okay";
+};
+
+&qspi { /* MIO 0-5 - U143 */
+	status = "okay";
+	flash@0 { /* MT25QU512A */
+		compatible = "mt25qu512a", "jedec,spi-nor"; /* 64MB */
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <4>;
+		spi-max-frequency = <40000000>; /* 40MHz */
+		partition@0 {
+			label = "Image Selector";
+			reg = <0x0 0x80000>; /* 512KB */
+			read-only;
+			lock;
+		};
+		partition@80000 {
+			label = "Image Selector Golden";
+			reg = <0x80000 0x80000>; /* 512KB */
+			read-only;
+			lock;
+		};
+		partition@100000 {
+			label = "Persistent Register";
+			reg = <0x100000 0x20000>; /* 128KB */
+		};
+		partition@120000 {
+			label = "Persistent Register Backup";
+			reg = <0x120000 0x20000>; /* 128KB */
+		};
+		partition@140000 {
+			label = "Open_1";
+			reg = <0x140000 0xC0000>; /* 768KB */
+		};
+		partition@200000 {
+			label = "Image A (FSBL, PMU, ATF, U-Boot)";
+			reg = <0x200000 0xD00000>; /* 13MB */
+		};
+		partition@f00000 {
+			label = "ImgSel Image A Catch";
+			reg = <0xF00000 0x80000>; /* 512KB */
+			read-only;
+			lock;
+		};
+		partition@f80000 {
+			label = "Image B (FSBL, PMU, ATF, U-Boot)";
+			reg = <0xF80000 0xD00000>; /* 13MB */
+		};
+		partition@1c80000 {
+			label = "ImgSel Image B Catch";
+			reg = <0x1C80000 0x80000>; /* 512KB */
+			read-only;
+			lock;
+		};
+		partition@1d00000 {
+			label = "Open_2";
+			reg = <0x1D00000 0x100000>; /* 1MB */
+		};
+		partition@1e00000 {
+			label = "Recovery Image";
+			reg = <0x1E00000 0x200000>; /* 2MB */
+			read-only;
+			lock;
+		};
+		partition@2000000 {
+			label = "Recovery Image Backup";
+			reg = <0x2000000 0x200000>; /* 2MB */
+			read-only;
+			lock;
+		};
+		partition@2200000 {
+			label = "U-Boot storage variables";
+			reg = <0x2200000 0x20000>; /* 128KB */
+		};
+		partition@2220000 {
+			label = "U-Boot storage variables backup";
+			reg = <0x2220000 0x20000>; /* 128KB */
+		};
+		partition@2240000 {
+			label = "SHA256";
+			reg = <0x2240000 0x10000>; /* 256B but 64KB sector */
+			read-only;
+			lock;
+		};
+		partition@2250000 {
+			label = "User";
+			reg = <0x2250000 0x1db0000>; /* 29.5 MB */
+		};
+	};
+};
+
+&sdhci0 { /* MIO13-23 - 16GB emmc MTFC16GAPALBH-IT - U133A */
+	status = "okay";
+	non-removable;
+	disable-wp;
+	bus-width = <8>;
+	xlnx,mio-bank = <0>;
+};
+
+&spi1 { /* MIO6, 9-11 */
+	status = "okay";
+	label = "TPM";
+	num-cs = <1>;
+	tpm@0 { /* slm9670 - U144 */
+		compatible = "infineon,slb9670", "tcg,tpm_tis-spi";
+		reg = <0>;
+		spi-max-frequency = <18500000>;
+	};
+};
+
+&i2c1 {
+	status = "okay";
+	clock-frequency = <400000>;
+	scl-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
+	sda-gpios = <&gpio 25 GPIO_ACTIVE_HIGH>;
+
+	eeprom: eeprom@50 { /* u46 - also at address 0x58 */
+		compatible = "st,24c64", "atmel,24c64"; /* st m24c64 */
+		reg = <0x50>;
+		/* WP pin EE_WP_EN connected to slg7x644092@68 */
+	};
+
+	eeprom_cc: eeprom@51 { /* required by spec - also at address 0x59 */
+		compatible = "st,24c64", "atmel,24c64"; /* st m24c64 */
+		reg = <0x51>;
+	};
+
+	/* da9062@30 - u170 - also at address 0x31 */
+	/* da9131@33 - u167 */
+	da9131: pmic@33 {
+		compatible = "dlg,da9131";
+		reg = <0x33>;
+		regulators {
+			da9131_buck1: buck1 {
+				regulator-name = "da9131_buck1";
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			da9131_buck2: buck2 {
+				regulator-name = "da9131_buck2";
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+
+	/* da9130@32 - u166 */
+	da9130: pmic@32 {
+		compatible = "dlg,da9130";
+		reg = <0x32>;
+		regulators {
+			da9130_buck1: buck1 {
+				regulator-name = "da9130_buck1";
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+
+	/* slg7x644091@70 - u168 NOT accessible due to address conflict with stdp4320 */
+	/*
+	 * stdp4320 - u27 FW has below two issues to be fixed in next board revision.
+	 * Device acknowledging to addresses 0x5C, 0x5D, 0x70, 0x72, 0x76.
+	 * Address conflict with slg7x644091@70 making both the devices NOT accessible.
+	 * With the FW fix, stdp4320 should respond to address 0x73 only.
+	 */
+	/* slg7x644092@68 - u169 */
+	/* Also connected via JA1C as C23/C24 */
+};
+
+&gpio {
+	status = "okay";
+	gpio-line-names = "QSPI_CLK", "QSPI_DQ1", "QSPI_DQ2", "QSPI_DQ3", "QSPI_DQ0", /* 0 - 4 */
+			  "QSPI_CS_B", "SPI_CLK", "LED1", "LED2", "SPI_CS_B", /* 5 - 9 */
+			  "SPI_MISO", "SPI_MOSI", "FWUEN", "EMMC_DAT0", "EMMC_DAT1", /* 10 - 14 */
+			  "EMMC_DAT2", "EMMC_DAT3", "EMMC_DAT4", "EMMC_DAT5", "EMMC_DAT6", /* 15 - 19 */
+			  "EMMC_DAT7", "EMMC_CMD", "EMMC_CLK", "EMMC_RST", "I2C1_SCL", /* 20 - 24 */
+			  "I2C1_SDA", "", "", "", "", /* 25 - 29 */
+			  "", "", "", "", "", /* 30 - 34 */
+			  "", "", "", "", "", /* 35 - 39 */
+			  "", "", "", "", "", /* 40 - 44 */
+			  "", "", "", "", "", /* 45 - 49 */
+			  "", "", "", "", "", /* 50 - 54 */
+			  "", "", "", "", "", /* 55 - 59 */
+			  "", "", "", "", "", /* 60 - 64 */
+			  "", "", "", "", "", /* 65 - 69 */
+			  "", "", "", "", "", /* 70 - 74 */
+			  "", "", "", /* 75 - 77, MIO end and EMIO start */
+			  "", "", /* 78 - 79 */
+			  "", "", "", "", "", /* 80 - 84 */
+			  "", "", "", "", "", /* 85 - 89 */
+			  "", "", "", "", "", /* 90 - 94 */
+			  "", "", "", "", "", /* 95 - 99 */
+			  "", "", "", "", "", /* 100 - 104 */
+			  "", "", "", "", "", /* 105 - 109 */
+			  "", "", "", "", "", /* 110 - 114 */
+			  "", "", "", "", "", /* 115 - 119 */
+			  "", "", "", "", "", /* 120 - 124 */
+			  "", "", "", "", "", /* 125 - 129 */
+			  "", "", "", "", "", /* 130 - 134 */
+			  "", "", "", "", "", /* 135 - 139 */
+			  "", "", "", "", "", /* 140 - 144 */
+			  "", "", "", "", "", /* 145 - 149 */
+			  "", "", "", "", "", /* 150 - 154 */
+			  "", "", "", "", "", /* 155 - 159 */
+			  "", "", "", "", "", /* 160 - 164 */
+			  "", "", "", "", "", /* 165 - 169 */
+			  "", "", "", ""; /* 170 - 174 */
+};

arch/arm64/boot/dts/xilinx/zynqmp-smk-k26-revA.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dts file for Xilinx ZynqMP SMK-K26 rev1/B/A
+ *
+ * (C) Copyright 2020 - 2021, Xilinx, Inc.
+ *
+ * Michal Simek <michal.simek@xilinx.com>
+ */
+
+#include "zynqmp-sm-k26-revA.dts"
+
+/ {
+	model = "ZynqMP SMK-K26 Rev1/B/A";
+	compatible = "xlnx,zynqmp-smk-k26-rev1", "xlnx,zynqmp-smk-k26-revB",
+		     "xlnx,zynqmp-smk-k26-revA", "xlnx,zynqmp-smk-k26",
+		     "xlnx,zynqmp";
+};
+
+&sdhci0 {
+	status = "disabled";
+};