[PATCH 1/2] dt-bindings: soc: xilinx: Add MYIR MYS-7Z020-V2 board

[PATCH 1/2] dt-bindings: soc: xilinx: Add MYIR MYS-7Z020-V2 board

[Liu Yu]

Add compatible string for the MYIR MYS-7Z020-V2 board, based on
the Xilinx Zynq-7000 XC7Z020 SoC.

Signed-off-by: Liu Yu <f78fk@live.com>
---
 Documentation/devicetree/bindings/soc/xilinx/xilinx.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/soc/xilinx/xilinx.yaml b/Documentation/devicetree/bindings/soc/xilinx/xilinx.yaml
index c9f99e0df2b3..72a84b628da3 100644
--- a/Documentation/devicetree/bindings/soc/xilinx/xilinx.yaml
+++ b/Documentation/devicetree/bindings/soc/xilinx/xilinx.yaml
@@ -23,6 +23,7 @@ properties:
               - digilent,zynq-zybo
               - digilent,zynq-zybo-z7
               - ebang,ebaz4205
+              - myir,mys-7z020-v2
               - myir,zynq-zturn-v5
               - myir,zynq-zturn
               - xlnx,zynq-cc108
-- 
2.43.0

[PATCH 2/2] arm: dts: xilinx: Add support for MYIR MYS-7Z020-V2 board

[Liu Yu]

Add device tree support for the MYIR MYS-7Z020-V2 board based on
the Xilinx Zynq-7000 XC7Z020 SoC.

The board supports:
- UART serial console
- MicroSD card interface
- Gigabit Ethernet
- QSPI NOR flash
- GPIO-based user LEDs and push-button

Link: https://www.myirtech.com/list.asp?id=708

Signed-off-by: Liu Yu <f78fk@live.com>
---
 arch/arm/boot/dts/xilinx/Makefile             |   1 +
 .../arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts | 228 ++++++++++++++++++
 2 files changed, 229 insertions(+)
 create mode 100644 arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts

diff --git a/arch/arm/boot/dts/xilinx/Makefile b/arch/arm/boot/dts/xilinx/Makefile
index 9233e539b192..6c59116013f1 100644
--- a/arch/arm/boot/dts/xilinx/Makefile
+++ b/arch/arm/boot/dts/xilinx/Makefile
@@ -3,6 +3,7 @@ dtb-$(CONFIG_ARCH_ZYNQ) += \
 	zynq-cc108.dtb \
 	zynq-ebaz4205.dtb \
 	zynq-microzed.dtb \
+	zynq-mys-7z020-v2.dtb \
 	zynq-parallella.dtb \
 	zynq-zc702.dtb \
 	zynq-zc706.dtb \
diff --git a/arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts b/arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts
new file mode 100644
index 000000000000..39bd864ca358
--- /dev/null
+++ b/arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts
@@ -0,0 +1,228 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2026 Liu Yu <f78fk@live.com>
+ */
+/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include "zynq-7000.dtsi"
+
+/ {
+	model = "MYIR MYS-7Z020-V2 Board";
+	compatible = "myir,mys-7z020-v2", "xlnx,zynq-7000";
+
+	aliases {
+		ethernet0 = &gem0;
+		mmc0 = &sdhci0;
+		serial0 = &uart1;
+		spi0 = &qspi;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		autorepeat;
+
+		key-user {
+			label = "USR";
+			gpios = <&gpio0 50 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_PROG1>;
+			wakeup-source;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		led-blue {
+			label = "led_blue";
+			gpios = <&gpio0 115 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-green {
+			label = "led_green";
+			gpios = <&gpio0 114 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-red {
+			label = "led_red";
+			gpios = <&gpio0 116 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		usr-led1 {
+			label = "usr_led1";
+			gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		usr-led2 {
+			label = "usr_led2";
+			gpios = <&gpio0 9 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x40000000>;
+	};
+};
+
+&clkc {
+	ps-clk-frequency = <33333333>;
+};
+
+&gem0 {
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethernet_phy>;
+
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethernet_phy: ethernet-phy@7 {
+			reg = <0x7>;
+		};
+	};
+};
+
+&gpio0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio0_default>;
+};
+
+&pinctrl0 {
+	pinctrl_gpio0_default: gpio0-default {
+		mux {
+			function = "gpio0";
+			groups = "gpio0_0_grp", "gpio0_9_grp", "gpio0_50_grp";
+		};
+		conf {
+			groups = "gpio0_0_grp", "gpio0_9_grp", "gpio0_50_grp";
+			slew-rate = <0>;
+			io-standard = <1>;
+		};
+		conf-pull-up {
+			pins = "MIO0", "MIO9", "MIO50";
+			bias-pull-up;
+		};
+	};
+
+	pinctrl_sdhci0_default: sdhci0-default {
+		mux {
+			groups = "sdio0_2_grp";
+			function = "sdio0";
+		};
+		conf {
+			groups = "sdio0_2_grp";
+			slew-rate = <0>;
+			io-standard = <1>;
+			bias-disable;
+		};
+		conf-cd {
+			pins = "MIO46";
+			bias-pull-up;
+			slew-rate = <0>;
+			io-standard = <1>;
+		};
+	};
+
+	pinctrl_uart1_default: uart1-default {
+		mux {
+			groups = "uart1_10_grp";
+			function = "uart1";
+		};
+		conf {
+			groups = "uart1_10_grp";
+			slew-rate = <0>;
+			io-standard = <1>;
+		};
+		conf-rx {
+			pins = "MIO49";
+			bias-high-impedance;
+		};
+		conf-tx {
+			pins = "MIO48";
+			bias-disable;
+		};
+	};
+};
+
+&qspi {
+	num-cs = <1>;
+
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0x0>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <4>;
+		spi-max-frequency = <50000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "qspi-boot";
+				reg = <0x0 0x80000>;
+			};
+
+			partition@80000 {
+				label = "qspi-bootenv";
+				reg = <0x80000 0x20000>;
+			};
+
+			partition@a0000 {
+				label = "qspi-bitstream";
+				reg = <0xa0000 0x460000>;
+			};
+
+			partition@500000 {
+				label = "qspi-kernel";
+				reg = <0x500000 0x480000>;
+			};
+
+			partition@980000 {
+				label = "qspi-devicetree";
+				reg = <0x980000 0x10000>;
+			};
+
+			partition@990000 {
+				label = "qspi-rootfs";
+				reg = <0x990000 0x600000>;
+			};
+
+			partition@f90000 {
+				label = "data";
+				reg = <0xf90000 0x70000>;
+			};
+		};
+	};
+};
+
+&sdhci0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sdhci0_default>;
+	disable-wp;
+
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1_default>;
+
+	status = "okay";
+};
+
-- 
2.43.0

Re: [PATCH 2/2] arm: dts: xilinx: Add support for MYIR MYS-7Z020-V2 board

[sashiko-bot]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [High] Missing function multiplexing for SD card detect (CD) pin, causing SD card detection to fail.
--

commit d502783eb06999075d769495567d3ef9a776e3f7
Author: Liu Yu <f78fk@live.com>

arm: dts: xilinx: Add support for MYIR MYS-7Z020-V2 board

Add device tree support for the MYIR MYS-7Z020-V2 board based on
the Xilinx Zynq-7000 XC7Z020 SoC.

Link: https://www.myirtech.com/list.asp?id=708

> diff --git a/arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts b/arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts
> new file mode 100644
> index 0000000000000..39bd864ca358d
> --- /dev/null
> +++ b/arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts

[ ... ]

> +&pinctrl0 {

[ ... ]

> +	pinctrl_sdhci0_default: sdhci0-default {
> +		mux {
> +			groups = "sdio0_2_grp";
> +			function = "sdio0";
> +		};
> +		conf {
> +			groups = "sdio0_2_grp";
> +			slew-rate = <0>;
> +			io-standard = <1>;
> +			bias-disable;
> +		};
> +		conf-cd {
> +			pins = "MIO46";
> +			bias-pull-up;
> +			slew-rate = <0>;
> +			io-standard = <1>;
> +		};

[Severity: High]
Does this pin configuration properly route the SD card detect signal to the
SDHCI controller?

The conf-cd block sets the electrical properties for MIO46, but it appears
to lack the required multiplexing configuration. In the Zynq pinctrl driver,
routing the SD card detect signal requires explicitly requesting the
sdio0_cd function.

Without defining a mux node (such as adding a mux-cd block with
groups = "gpio0_46_grp" and function = "sdio0_cd"), the Linux pinctrl
driver will not route the internal SDHCI controller's CD line to MIO46.
Unless the bootloader pre-configures this mux and the configuration
survives suspend and resume cycles, the SD controller will likely fail
to detect card insertion or removal.

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260619102214.223121-1-f78fk@live.com?part=2

[PATCH v2 0/2] arm: dts: xilinx: Add MYIR MYS-7Z020-V2 board support

[Liu Yu]

This series adds basic device tree and binding documentation support
for the MYIR MYS-7Z020-V2 development board, which is based on the
Xilinx Zynq-7000 (XC7Z020) SoC.

The first patch introduces the device tree file enabling essential
hardware support such as the serial console, MicroSD, Gigabit Ethernet,
QSPI flash, and user LEDs/buttons. The second patch adds the corresponding
compatible string to the Xilinx SoC bindings documentation.

Changes in v2:
  - Add missing pinmux configuration (sdio0_cd) for MIO46 to correctly
    route the hardware SD card detect signal, resolving the automated
    review warning.

Liu Yu (2):
  dt-bindings: soc: xilinx: Add MYIR MYS-7Z020-V2 board
  arm: dts: xilinx: Add support for MYIR MYS-7Z020-V2 board

 .../bindings/soc/xilinx/xilinx.yaml           |   1 +
 arch/arm/boot/dts/xilinx/Makefile             |   1 +
 .../arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts | 232 ++++++++++++++++++
 3 files changed, 234 insertions(+)
 create mode 100644 arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts

-- 
2.43.0

[PATCH v2 1/2] dt-bindings: soc: xilinx: Add MYIR MYS-7Z020-V2 board

[Liu Yu]

Add compatible string for the MYIR MYS-7Z020-V2 board, based on
the Xilinx Zynq-7000 XC7Z020 SoC.

Signed-off-by: Liu Yu <f78fk@live.com>
---
 Documentation/devicetree/bindings/soc/xilinx/xilinx.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/soc/xilinx/xilinx.yaml b/Documentation/devicetree/bindings/soc/xilinx/xilinx.yaml
index c9f99e0df2b3..72a84b628da3 100644
--- a/Documentation/devicetree/bindings/soc/xilinx/xilinx.yaml
+++ b/Documentation/devicetree/bindings/soc/xilinx/xilinx.yaml
@@ -23,6 +23,7 @@ properties:
               - digilent,zynq-zybo
               - digilent,zynq-zybo-z7
               - ebang,ebaz4205
+              - myir,mys-7z020-v2
               - myir,zynq-zturn-v5
               - myir,zynq-zturn
               - xlnx,zynq-cc108
-- 
2.43.0

[PATCH v2 2/2] arm: dts: xilinx: Add support for MYIR MYS-7Z020-V2 board

[Liu Yu]

Add device tree support for the MYIR MYS-7Z020-V2 board based on
the Xilinx Zynq-7000 XC7Z020 SoC.

The board supports:
- UART serial console
- MicroSD card interface
- Gigabit Ethernet
- QSPI NOR flash
- GPIO-based user LEDs and push-button

Link: https://www.myirtech.com/list.asp?id=708

Signed-off-by: Liu Yu <f78fk@live.com>
---
 arch/arm/boot/dts/xilinx/Makefile             |   1 +
 .../arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts | 232 ++++++++++++++++++
 2 files changed, 233 insertions(+)
 create mode 100644 arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts

diff --git a/arch/arm/boot/dts/xilinx/Makefile b/arch/arm/boot/dts/xilinx/Makefile
index 9233e539b192..6c59116013f1 100644
--- a/arch/arm/boot/dts/xilinx/Makefile
+++ b/arch/arm/boot/dts/xilinx/Makefile
@@ -3,6 +3,7 @@ dtb-$(CONFIG_ARCH_ZYNQ) += \
 	zynq-cc108.dtb \
 	zynq-ebaz4205.dtb \
 	zynq-microzed.dtb \
+	zynq-mys-7z020-v2.dtb \
 	zynq-parallella.dtb \
 	zynq-zc702.dtb \
 	zynq-zc706.dtb \
diff --git a/arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts b/arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts
new file mode 100644
index 000000000000..b55133133e2f
--- /dev/null
+++ b/arch/arm/boot/dts/xilinx/zynq-mys-7z020-v2.dts
@@ -0,0 +1,232 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2026 Liu Yu <f78fk@live.com>
+ */
+/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include "zynq-7000.dtsi"
+
+/ {
+	model = "MYIR MYS-7Z020-V2 Board";
+	compatible = "myir,mys-7z020-v2", "xlnx,zynq-7000";
+
+	aliases {
+		ethernet0 = &gem0;
+		mmc0 = &sdhci0;
+		serial0 = &uart1;
+		spi0 = &qspi;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		autorepeat;
+
+		key-user {
+			label = "USR";
+			gpios = <&gpio0 50 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_PROG1>;
+			wakeup-source;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		led-blue {
+			label = "led_blue";
+			gpios = <&gpio0 115 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-green {
+			label = "led_green";
+			gpios = <&gpio0 114 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-red {
+			label = "led_red";
+			gpios = <&gpio0 116 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		usr-led1 {
+			label = "usr_led1";
+			gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		usr-led2 {
+			label = "usr_led2";
+			gpios = <&gpio0 9 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x40000000>;
+	};
+};
+
+&clkc {
+	ps-clk-frequency = <33333333>;
+};
+
+&gem0 {
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethernet_phy>;
+
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethernet_phy: ethernet-phy@7 {
+			reg = <0x7>;
+		};
+	};
+};
+
+&gpio0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio0_default>;
+};
+
+&pinctrl0 {
+	pinctrl_gpio0_default: gpio0-default {
+		mux {
+			function = "gpio0";
+			groups = "gpio0_0_grp", "gpio0_9_grp", "gpio0_50_grp";
+		};
+		conf {
+			groups = "gpio0_0_grp", "gpio0_9_grp", "gpio0_50_grp";
+			slew-rate = <0>;
+			io-standard = <1>;
+		};
+		conf-pull-up {
+			pins = "MIO0", "MIO9", "MIO50";
+			bias-pull-up;
+		};
+	};
+
+	pinctrl_sdhci0_default: sdhci0-default {
+		mux {
+			groups = "sdio0_2_grp";
+			function = "sdio0";
+		};
+		mux-cd {
+			groups = "gpio0_46_grp";
+			function = "sdio0_cd";
+		};
+		conf {
+			groups = "sdio0_2_grp";
+			slew-rate = <0>;
+			io-standard = <1>;
+			bias-disable;
+		};
+		conf-cd {
+			pins = "MIO46";
+			bias-pull-up;
+			slew-rate = <0>;
+			io-standard = <1>;
+		};
+	};
+
+	pinctrl_uart1_default: uart1-default {
+		mux {
+			groups = "uart1_10_grp";
+			function = "uart1";
+		};
+		conf {
+			groups = "uart1_10_grp";
+			slew-rate = <0>;
+			io-standard = <1>;
+		};
+		conf-rx {
+			pins = "MIO49";
+			bias-high-impedance;
+		};
+		conf-tx {
+			pins = "MIO48";
+			bias-disable;
+		};
+	};
+};
+
+&qspi {
+	num-cs = <1>;
+
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0x0>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <4>;
+		spi-max-frequency = <50000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "qspi-boot";
+				reg = <0x0 0x80000>;
+			};
+
+			partition@80000 {
+				label = "qspi-bootenv";
+				reg = <0x80000 0x20000>;
+			};
+
+			partition@a0000 {
+				label = "qspi-bitstream";
+				reg = <0xa0000 0x460000>;
+			};
+
+			partition@500000 {
+				label = "qspi-kernel";
+				reg = <0x500000 0x480000>;
+			};
+
+			partition@980000 {
+				label = "qspi-devicetree";
+				reg = <0x980000 0x10000>;
+			};
+
+			partition@990000 {
+				label = "qspi-rootfs";
+				reg = <0x990000 0x600000>;
+			};
+
+			partition@f90000 {
+				label = "data";
+				reg = <0xf90000 0x70000>;
+			};
+		};
+	};
+};
+
+&sdhci0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sdhci0_default>;
+	disable-wp;
+
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1_default>;
+
+	status = "okay";
+};
+
-- 
2.43.0