kirkwood: add D-Link DNS-320L support

Dual-slot NAS based on Marvell Kirkwood.

Specifications:
 - Marvell 88F6702 @1GHz
 - 256Mb RAM
 - 128Mb NAND
 - 1x GbE LAN (Marvell 88E1318R)
 - 1x USB 2.0
 - 2x SATA
 - Weltrend WT69P3 ("supervisor" MCU chip)
 - Serial on J2 (115200,8n1)
 - Newer bootROM so kwboot-ing via serial is possible

Notes:
 - The Weltrend MCU is controlled by the package added in utils/dns320l-mcu.
 - The original MAC address is stored in the "mini firmware" image's first
   17 bytes.
 - Compared to the original MTD layout, the uImage+rootfs are now stored in
   a common ubi partition.

Installation:
1. Serial console
 - Connect your levelshifter to the serial console
   on J2 (refer to the wiki page for pinout)
2. Update u-boot
 - Download the u-boot.kwb image for the device
 - Powercycle the NAS
 - Run "kwboot -b u-boot-dns320l/u-boot.kwb /dev/ttyUSB0 -p"
 - Connect to the serial console with minicom
 - tftp 0x0800000 u-boot-dns320l/u-boot.kwb
   (Please note that "PHY reset timed out" seems to be customary
    on kirkwood devices, the egiga0 interface works regardless.)
 - nand erase 0x0 100000
 - nand write 0x0800000 0x0 0x100000
 - reset
3. Install OpenWrt
 - Boot up the initramfs image
 - tftpboot 0x800000 openwrt-kirkwood-generic-dlink_dns320l-initramfs-uImage; bootm 0x800000
 - Download the sysupgrade image and perform sysupgrade

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
Reviewed-by: Pawel Dembicki <paweldembicki@gmail.com>

6 files changed, 486 insertions, 0 deletions

diff --git a/target/linux/kirkwood/base-files/etc/board.d/02_network b/target/linux/kirkwood/base-files/etc/board.d/02_network
index 3ed2fa94b0..ff7897fe13 100644
--- a/target/linux/kirkwood/base-files/etc/board.d/02_network
+++ b/target/linux/kirkwood/base-files/etc/board.d/02_network
@@ -19,6 +19,7 @@ kirkwood_setup_interfaces()
 	cloudengines,pogoe02|\
 	cloudengines,pogoplugv4|\
 	ctera,c200-v1|\
+	dlink,dns320l|\
 	globalscale,sheevaplug|\
 	iom,iconnect-1.1|\
 	iom,ix2-200|\
@@ -60,6 +61,9 @@ kirkwood_setup_macs()
 	local label_mac=""
 
 	case "$board" in
+	dlink,dns320l)
+		lan_mac=$(mtd_get_mac_text "mini firmware")
+		;;
 	iptime,nas1)
 		lan_mac=$(mtd_get_mac_binary u-boot 0x3ffa8)
 		label_mac=$lan_mac
diff --git a/target/linux/kirkwood/files-6.1/arch/arm/boot/dts/kirkwood-dns320l.dts b/target/linux/kirkwood/files-6.1/arch/arm/boot/dts/kirkwood-dns320l.dts
new file mode 100644
index 0000000000..bd86c04ea7
--- /dev/null
+++ b/target/linux/kirkwood/files-6.1/arch/arm/boot/dts/kirkwood-dns320l.dts
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Device Tree file for DLINK DNS-320L
+ *
+ * Copyright (C) 2024, Zoltan HERPAI <wigyori@uid0.hu>
+ * Copyright (C) 2015, Sunke Schlüters <sunke-dev@schlueters.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * This file is based on the works of:
+ * - Sunke Schlüters <sunke-dev@schlueters.de>
+ *   - https://github.com/scus1/dns320l/blob/master/kernel/dts/kirkwood-dns320l.dts
+ * - Andreas Böhler <dev@aboehler.at>:
+ *   - http://www.aboehler.at/doku/doku.php/projects:dns320l
+ *   - http://www.aboehler.at/hg/linux-dns320l/file/ba7a60ad7687/linux-3.12/kirkwood-dns320l.dts
+ */
+
+/dts-v1/;
+
+#include "kirkwood.dtsi"
+#include "kirkwood-6281.dtsi"
+
+/ {
+	model = "D-Link DNS-320L";
+	compatible = "dlink,dns320l", "marvell,kirkwood-88f6702", "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x10000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 earlyprintk";
+		stdout-path = &uart0;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-0 = <&pmx_buttons>;
+		pinctrl-names = "default";
+
+		button@1 {
+			label = "Reset push button";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio0 28 1>;
+		};
+
+		button@2 {
+			label = "USB unmount button";
+			linux,code = <KEY_EJECTCD>;
+			gpios = <&gpio0 27 1>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&pmx_leds>;
+		pinctrl-names = "default";
+
+		blue-usb {
+			label = "dns320l:usb:blue";
+			gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "usbport";
+		};
+
+		orange-usb {
+			label = "dns320l:usb:orange";
+			gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+		};
+
+		orange-l-hdd {
+			label = "dns320l:orange:l_hdd";
+			gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>;
+		};
+
+		orange-r-hdd {
+			label = "dns320l:orange:r_hdd";
+			gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	ocp@f1000000 {
+		sata@80000 {
+			status = "okay";
+			nr-ports = <2>;
+		};
+
+		serial@12000 {
+			status = "okay";
+		};
+
+		serial@12100 {
+			pinctrl-0 = <&pmx_uart1>;
+			pinctrl-names = "default";
+			status = "okay";
+		};
+	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-0 = <&pmx_power_sata>;
+		pinctrl-names = "default";
+
+		sata_power: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "SATA Power";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&gpio0 24 0>;
+		};
+	};
+};
+
+&nand {
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+	chip-delay = <40>;
+	status = "okay";
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x0000000 0x100000>;
+	};
+
+	partition@100000 {
+		label = "ubootenv";
+		reg = <0x100000 0x20000>;
+	};
+
+	partition@120000 {
+		label = "ubi";
+		reg = <0x120000 0x6de0000>;
+	};
+
+	partition@6f00000 {
+		label = "mini firmware";
+		reg = <0x6f00000 0xa00000>;
+	};
+
+	partition@7900000 {
+		label = "config";
+		reg = <0x7900000 0x500000>;
+	};
+
+	partition@7e00000 {
+		label = "my-dlink";
+		reg = <0x7e00000 0x200000>;
+	};
+};
+
+&mdio {
+	status = "okay";
+
+	ethphy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+};
+
+&pinctrl {
+	pmx_sata1: pmx-sata1 {
+		marvell,pins = "mpp20";
+		marvell,function = "sata1";
+	};
+
+	pmx_sata0: pmx-sata0 {
+		marvell,pins = "mpp21";
+		marvell,function = "sata0";
+	};
+
+	pmx_power_sata: pmx-power-sata {
+		marvell,pins = "mpp24";
+		marvell,function = "gpio";
+	};
+
+	pmx_leds: pmx-leds {
+		marvell,pins = "mpp22", "mpp23", "mpp25", "mpp26";
+		marvell,function = "gpio";
+	};
+
+	pmx_buttons: pmx-buttons {
+		marvell,pins = "mpp27", "mpp28", "mpp29";
+		marvell,function = "gpio";
+	};
+};
+
+&eth0 {
+	status = "okay";
+	ethernet0-port@0 {
+		phy-handle = <&ethphy0>;
+	};
+};
diff --git a/target/linux/kirkwood/files-6.6/arch/arm/boot/dts/marvell/kirkwood-dns320l.dts b/target/linux/kirkwood/files-6.6/arch/arm/boot/dts/marvell/kirkwood-dns320l.dts
new file mode 100644
index 0000000000..bd86c04ea7
--- /dev/null
+++ b/target/linux/kirkwood/files-6.6/arch/arm/boot/dts/marvell/kirkwood-dns320l.dts
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Device Tree file for DLINK DNS-320L
+ *
+ * Copyright (C) 2024, Zoltan HERPAI <wigyori@uid0.hu>
+ * Copyright (C) 2015, Sunke Schlüters <sunke-dev@schlueters.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * This file is based on the works of:
+ * - Sunke Schlüters <sunke-dev@schlueters.de>
+ *   - https://github.com/scus1/dns320l/blob/master/kernel/dts/kirkwood-dns320l.dts
+ * - Andreas Böhler <dev@aboehler.at>:
+ *   - http://www.aboehler.at/doku/doku.php/projects:dns320l
+ *   - http://www.aboehler.at/hg/linux-dns320l/file/ba7a60ad7687/linux-3.12/kirkwood-dns320l.dts
+ */
+
+/dts-v1/;
+
+#include "kirkwood.dtsi"
+#include "kirkwood-6281.dtsi"
+
+/ {
+	model = "D-Link DNS-320L";
+	compatible = "dlink,dns320l", "marvell,kirkwood-88f6702", "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x10000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 earlyprintk";
+		stdout-path = &uart0;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-0 = <&pmx_buttons>;
+		pinctrl-names = "default";
+
+		button@1 {
+			label = "Reset push button";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio0 28 1>;
+		};
+
+		button@2 {
+			label = "USB unmount button";
+			linux,code = <KEY_EJECTCD>;
+			gpios = <&gpio0 27 1>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&pmx_leds>;
+		pinctrl-names = "default";
+
+		blue-usb {
+			label = "dns320l:usb:blue";
+			gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "usbport";
+		};
+
+		orange-usb {
+			label = "dns320l:usb:orange";
+			gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+		};
+
+		orange-l-hdd {
+			label = "dns320l:orange:l_hdd";
+			gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>;
+		};
+
+		orange-r-hdd {
+			label = "dns320l:orange:r_hdd";
+			gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	ocp@f1000000 {
+		sata@80000 {
+			status = "okay";
+			nr-ports = <2>;
+		};
+
+		serial@12000 {
+			status = "okay";
+		};
+
+		serial@12100 {
+			pinctrl-0 = <&pmx_uart1>;
+			pinctrl-names = "default";
+			status = "okay";
+		};
+	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-0 = <&pmx_power_sata>;
+		pinctrl-names = "default";
+
+		sata_power: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "SATA Power";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&gpio0 24 0>;
+		};
+	};
+};
+
+&nand {
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+	chip-delay = <40>;
+	status = "okay";
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x0000000 0x100000>;
+	};
+
+	partition@100000 {
+		label = "ubootenv";
+		reg = <0x100000 0x20000>;
+	};
+
+	partition@120000 {
+		label = "ubi";
+		reg = <0x120000 0x6de0000>;
+	};
+
+	partition@6f00000 {
+		label = "mini firmware";
+		reg = <0x6f00000 0xa00000>;
+	};
+
+	partition@7900000 {
+		label = "config";
+		reg = <0x7900000 0x500000>;
+	};
+
+	partition@7e00000 {
+		label = "my-dlink";
+		reg = <0x7e00000 0x200000>;
+	};
+};
+
+&mdio {
+	status = "okay";
+
+	ethphy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+};
+
+&pinctrl {
+	pmx_sata1: pmx-sata1 {
+		marvell,pins = "mpp20";
+		marvell,function = "sata1";
+	};
+
+	pmx_sata0: pmx-sata0 {
+		marvell,pins = "mpp21";
+		marvell,function = "sata0";
+	};
+
+	pmx_power_sata: pmx-power-sata {
+		marvell,pins = "mpp24";
+		marvell,function = "gpio";
+	};
+
+	pmx_leds: pmx-leds {
+		marvell,pins = "mpp22", "mpp23", "mpp25", "mpp26";
+		marvell,function = "gpio";
+	};
+
+	pmx_buttons: pmx-buttons {
+		marvell,pins = "mpp27", "mpp28", "mpp29";
+		marvell,function = "gpio";
+	};
+};
+
+&eth0 {
+	status = "okay";
+	ethernet0-port@0 {
+		phy-handle = <&ethphy0>;
+	};
+};
diff --git a/target/linux/kirkwood/image/Makefile b/target/linux/kirkwood/image/Makefile
index cc13648890..48de5bee2b 100644
--- a/target/linux/kirkwood/image/Makefile
+++ b/target/linux/kirkwood/image/Makefile
@@ -182,6 +182,14 @@ define Device/ctera_c200-v1
 endef
 TARGET_DEVICES += ctera_c200-v1
 
+define Device/dlink_dns320l
+  DEVICE_VENDOR := D-Link
+  DEVICE_MODEL := DNS-320L
+  DEVICE_PACKAGES := kmod-ata-marvell-sata kmod-fs-ext4 kmod-gpio-button-hotplug \
+	kmod-usb-storage kmod-usb-ledtrig-usbport dns320l-mcu
+endef
+TARGET_DEVICES += dlink_dns320l
+
 define Device/endian_4i-edge-200
   DEVICE_VENDOR := Endian
   DEVICE_MODEL := 4i Edge 200
diff --git a/target/linux/kirkwood/patches-6.1/118-dns-320l.patch b/target/linux/kirkwood/patches-6.1/118-dns-320l.patch
new file mode 100644
index 0000000000..d6c84e2c59
--- /dev/null
+++ b/target/linux/kirkwood/patches-6.1/118-dns-320l.patch
@@ -0,0 +1,35 @@
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -310,6 +310,7 @@ dtb-$(CONFIG_MACH_KIRKWOOD) += \
+ 	kirkwood-db-88f6282.dtb \
+ 	kirkwood-dir665.dtb \
+ 	kirkwood-dns320.dtb \
++	kirkwood-dns320l.dtb \
+ 	kirkwood-dns325.dtb \
+ 	kirkwood-dockstar.dtb \
+ 	kirkwood-dreamplug.dtb \
+--- a/arch/arm/boot/dts/kirkwood-dns320l.dts
++++ b/arch/arm/boot/dts/kirkwood-dns320l.dts
+@@ -32,6 +32,13 @@
+ 		reg = <0x00000000 0x10000000>;
+ 	};
+ 
++	aliases {
++		led-boot = &led_orange_usb;
++		led-failsafe = &led_orange_usb;
++		led-running = &led_orange_usb;
++		led-upgrade = &led_orange_usb;
++	};
++
+ 	chosen {
+ 		bootargs = "console=ttyS0,115200n8 earlyprintk";
+ 		stdout-path = &uart0;
+@@ -68,7 +75,7 @@
+ 			linux,default-trigger = "usbport";
+ 		};
+ 
+-		orange-usb {
++		led_orange_usb: orange-usb {
+ 			label = "dns320l:usb:orange";
+ 			gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+ 		};
diff --git a/target/linux/kirkwood/patches-6.6/118-dns-320l.patch b/target/linux/kirkwood/patches-6.6/118-dns-320l.patch
new file mode 100644
index 0000000000..8f19441bbe
--- /dev/null
+++ b/target/linux/kirkwood/patches-6.6/118-dns-320l.patch
@@ -0,0 +1,35 @@
+--- a/arch/arm/boot/dts/marvell/Makefile
++++ b/arch/arm/boot/dts/marvell/Makefile
+@@ -92,6 +92,7 @@ dtb-$(CONFIG_MACH_KIRKWOOD) += \
+ 	kirkwood-db-88f6282.dtb \
+ 	kirkwood-dir665.dtb \
+ 	kirkwood-dns320.dtb \
++	kirkwood-dns320l.dtb \
+ 	kirkwood-dns325.dtb \
+ 	kirkwood-dockstar.dtb \
+ 	kirkwood-dreamplug.dtb \
+--- a/arch/arm/boot/dts/marvell/kirkwood-dns320l.dts
++++ b/arch/arm/boot/dts/marvell/kirkwood-dns320l.dts
+@@ -32,6 +32,13 @@
+ 		reg = <0x00000000 0x10000000>;
+ 	};
+ 
++	aliases {
++		led-boot = &led_orange_usb;
++		led-failsafe = &led_orange_usb;
++		led-running = &led_orange_usb;
++		led-upgrade = &led_orange_usb;
++	};
++
+ 	chosen {
+ 		bootargs = "console=ttyS0,115200n8 earlyprintk";
+ 		stdout-path = &uart0;
+@@ -68,7 +75,7 @@
+ 			linux,default-trigger = "usbport";
+ 		};
+ 
+-		orange-usb {
++		led_orange_usb: orange-usb {
+ 			label = "dns320l:usb:orange";
+ 			gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+ 		};