Add Walnut Pi Box (CM1) and 1B DDR3 variant

config/boards/walnutpi-1b-ddr3.csc

@@ -0,0 +1,18 @@
+# Allwinner H618 quad core 1GB DDR3 RAM SoC WiFi/BT
+# Early 1B revision with 2x 512MB DDR3 (vendor schematic v1.0); newer 1GB
+# boards use LPDDR4 and are covered by walnutpi-1b. Untested on hardware.
+BOARD_NAME="Walnut Pi 1B DDR3"
+BOARD_VENDOR="walnut"
+BOARDFAMILY="sun50iw9"
+BOARD_MAINTAINER="TallGuy74"
+INTRODUCED="2026"
+BOOTCONFIG="walnutpi_1b_ddr3_defconfig"
+BOOT_LOGO="desktop"
+BOOT_FDT_FILE="sun50i-h618-walnutpi-1b.dtb"
+OVERLAY_PREFIX="sun50i-h616"
+KERNEL_TARGET="current,edge"
+KERNEL_TEST_TARGET="current"
+FORCE_BOOTSCRIPT_UPDATE="yes"
+SERIALCON="ttyS0"
+
+enable_extension "uwe5622-allwinner"

config/boards/walnutpi-1b.csc

@@ -0,0 +1,18 @@
+# Allwinner H618 quad core 1GB/2GB/4GB LPDDR4 RAM SoC WiFi/BT
+# Covers all LPDDR4 revisions (1G/2G/4G, size auto-detected); early DDR3
+# revision boards are covered by walnutpi-1b-ddr3.
+BOARD_NAME="Walnut Pi 1B"
+BOARD_VENDOR="walnut"
+BOARDFAMILY="sun50iw9"
+BOARD_MAINTAINER="TallGuy74"
+INTRODUCED="2026"
+BOOTCONFIG="walnutpi_1b_defconfig"
+BOOT_LOGO="desktop"
+BOOT_FDT_FILE="sun50i-h618-walnutpi-1b.dtb"
+OVERLAY_PREFIX="sun50i-h616"
+KERNEL_TARGET="current,edge"
+KERNEL_TEST_TARGET="current"
+FORCE_BOOTSCRIPT_UPDATE="yes"
+SERIALCON="ttyS0"
+
+enable_extension "uwe5622-allwinner"

config/boards/walnutpi-box.csc

@@ -0,0 +1,16 @@
+# Allwinner H618 quad core 1GB/2GB/4GB RAM SoC eMMC WiFi/BT
+BOARD_NAME="Walnut Pi Box"
+BOARD_VENDOR="walnut"
+BOARDFAMILY="sun50iw9"
+BOARD_MAINTAINER="TallGuy74"
+INTRODUCED="2026"
+BOOTCONFIG="walnutpi_box_defconfig"
+BOOT_LOGO="desktop"
+BOOT_FDT_FILE="sun50i-h618-walnutpi-box.dtb"
+OVERLAY_PREFIX="sun50i-h616"
+KERNEL_TARGET="current,edge"
+KERNEL_TEST_TARGET="current"
+FORCE_BOOTSCRIPT_UPDATE="yes"
+SERIALCON="ttyS0"
+
+enable_extension "uwe5622-allwinner"

config/boards/walnutpi-zerow.csc

@@ -0,0 +1,16 @@
+# Allwinner H618 quad core 1GB/2GB/4GB RAM SoC WiFi/BT
+BOARD_NAME="Walnut Pi ZeroW"
+BOARD_VENDOR="walnut"
+BOARDFAMILY="sun50iw9"
+BOARD_MAINTAINER="TallGuy74"
+INTRODUCED="2026"
+BOOTCONFIG="walnutpi_zerow_defconfig"
+BOOT_LOGO="desktop"
+BOOT_FDT_FILE="sun50i-h618-walnutpi-zerow.dtb"
+OVERLAY_PREFIX="sun50i-h616"
+KERNEL_TARGET="current,edge"
+KERNEL_TEST_TARGET="current"
+FORCE_BOOTSCRIPT_UPDATE="yes"
+SERIALCON="ttyS0"
+
+enable_extension "uwe5622-allwinner"

config/kernel/linux-sunxi64-current.config

@@ -1871,6 +1871,8 @@ CONFIG_DRM_DW_HDMI_I2S_AUDIO=m
 CONFIG_DRM_DW_HDMI_GP_AUDIO=m
 CONFIG_DRM_DW_HDMI_CEC=m
 CONFIG_DRM_PANEL_MIPI_DBI=m
+CONFIG_DRM_SSD130X=m
+CONFIG_DRM_SSD130X_I2C=m
 CONFIG_TINYDRM_HX8357D=m
 CONFIG_TINYDRM_ILI9163=m
 CONFIG_TINYDRM_ILI9225=m

config/kernel/linux-sunxi64-edge.config

@@ -1872,6 +1872,8 @@ CONFIG_DRM_PANTHOR=m
 CONFIG_DRM_PL111=m
 CONFIG_DRM_SUN4I=y
 CONFIG_DRM_PANEL_MIPI_DBI=m
+CONFIG_DRM_SSD130X=m
+CONFIG_DRM_SSD130X_I2C=m
 CONFIG_TINYDRM_HX8357D=m
 CONFIG_TINYDRM_ILI9163=m
 CONFIG_TINYDRM_ILI9225=m

patch/kernel/archive/sunxi-6.18/dt_64/sun50i-h618-walnutpi-1b.dts

@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Walnut Pi 1B: Walnut Pi 1 family SBC. Micro HDMI, 100 Mbit Ethernet,
+ * USB 2.0 host ports (VBUS switched via PC16), 40-pin header, status
+ * LED on PC13, no eMMC.
+ */
+
+/dts-v1/;
+
+#include "sun50i-h618-walnutpi.dtsi"
+
+/ {
+	model = "Walnut Pi 1B";
+	compatible = "walnutpi,walnutpi-1b", "allwinner,sun50i-h618";
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-0 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&pio 2 13 GPIO_ACTIVE_HIGH>; /* PC13 */
+			default-state = "on";
+		};
+	};
+};
+
+&reg_usb1_vbus {
+	enable-active-high;
+	gpio = <&pio 2 16 GPIO_ACTIVE_HIGH>; /* PC16 */
+};

patch/kernel/archive/sunxi-6.18/dt_64/sun50i-h618-walnutpi-box.dts

@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Walnut Pi Box: Walnut Pi CM1 on the Box IO carrier.
+ * Full-size HDMI, 100 Mbit Ethernet, 2x USB 2.0 host, 3.5mm audio,
+ * IR receiver, 40-pin header (peripherals via overlays), OLED header
+ * (I2C, via overlay), USB-C 5V power input (power only).
+ */
+
+/dts-v1/;
+
+#include "sun50i-h618-walnutpi-cm1.dtsi"
+
+#include <dt-bindings/input/linux-event-codes.h>
+
+/ {
+	model = "Walnut Pi Box";
+	compatible = "walnutpi,walnutpi-box", "allwinner,sun50i-h618";
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		poll-interval = <100>;
+
+		key-user {
+			label = "KEY";
+			linux,code = <KEY_PROG1>;
+			gpios = <&pio 2 12 GPIO_ACTIVE_LOW>; /* PC12 */
+		};
+	};
+
+	leds {
+		/* carrier LED, next to the module's PC7 status LED */
+		led-1 {
+			function = LED_FUNCTION_ACTIVITY;
+			color = <LED_COLOR_ID_BLUE>;
+			gpios = <&pio 2 13 GPIO_ACTIVE_HIGH>; /* PC13 */
+			linux,default-trigger = "heartbeat";
+		};
+	};
+};
+
+/* USB1 is not routed on the Box IO carrier */
+&ehci1 {
+	status = "disabled";
+};
+
+&hdmi_connector {
+	type = "a";
+};
+
+&ohci1 {
+	status = "disabled";
+};

patch/kernel/archive/sunxi-6.18/dt_64/sun50i-h618-walnutpi-cm1.dtsi

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Walnut Pi CM1 compute module: Walnut Pi 1 family core with eMMC
+ * populated (mmc2) and the status LED on PC7.
+ */
+
+#include "sun50i-h618-walnutpi.dtsi"
+
+/ {
+	aliases {
+		mmc2 = &mmc2;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-0 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&pio 2 7 GPIO_ACTIVE_HIGH>; /* PC7 */
+			default-state = "on";
+		};
+	};
+};
+
+&mmc2 {
+	status = "okay";
+};

patch/kernel/archive/sunxi-6.18/dt_64/sun50i-h618-walnutpi-zerow.dts

@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Walnut Pi ZeroW: compact Walnut Pi 1 family board. Micro HDMI,
+ * 2x USB-C (USB0 = OTG/power, USB1 = second port on ehci1/ohci1),
+ * 40-pin header, status LED on PC13. Ethernet, USB2/USB3 host,
+ * line-out audio and IR live on the FPC expansion board and are
+ * disabled here; attach the expansion and enable them with the
+ * walnutpi-zerow-expansion overlay.
+ */
+
+/dts-v1/;
+
+#include "sun50i-h618-walnutpi.dtsi"
+
+/ {
+	model = "Walnut Pi ZeroW";
+	compatible = "walnutpi,walnutpi-zerow", "allwinner,sun50i-h618";
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-0 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&pio 2 13 GPIO_ACTIVE_HIGH>; /* PC13 */
+			default-state = "on";
+		};
+	};
+};
+
+/* line-out is only on the FPC expansion board */
+&codec {
+	status = "disabled";
+};
+
+/* 100M Ethernet is only on the FPC expansion board */
+&emac1 {
+	status = "disabled";
+};
+
+/* USB2/USB3 host ports are only on the FPC expansion board */
+&ehci2 {
+	status = "disabled";
+};
+
+&ohci2 {
+	status = "disabled";
+};
+
+&ehci3 {
+	status = "disabled";
+};
+
+&ohci3 {
+	status = "disabled";
+};
+
+/* IR receiver is only on the FPC expansion board */
+&ir {
+	status = "disabled";
+};