[OpenWrt-Devel] [PATCH] mvebu: add support for Buffalo LinkStation LS421DE

Daniel Gonzalez Cabanelas dgcbueu at gmail.com
Wed Mar 25 21:00:24 EDT 2020


Buffalo LinkStation LS421DE is a dual bay NAS, based on Marvell Armada 370

Hardware:
   SoC:         Marvell 88F6707-A1
   CPU:         Cortex-A9 1200 MHz, 1 core
   Flash:       SPI-NOR 1 MiB, NAND 512 MiB
   RAM:         DDR3 512 MiB
   Ethernet:    1x 10/100/1000 Mbps
   USB:         1x 2.0, 1x 3.0
   SATA:        2x 3.0 Gbps
   LEDs/Input : 5x / 2x (1x button, 1x slide-switch)
   RTC:         Ricoh RS5C372A, I2C, no battery

Flash instruction (UART+TFTP):
  1. Downgrade the OEM firmware to 1.34 (BUFFALO_BOOTVER=0.13)
  2. Boot the Openwrt initramfs image using the serial console: 
         tftpboot buffalo_ls421de-initramfs-kernel.bin;bootm
  3. Flash the sysupgrade image using the Openwrt console:
         sysupgrade -n buffalo_ls421de-squashfs-sysupgrade.bin
  5. Wait until it finish, the device will reboot with Openwrt installed
     on the NAND flash.

Note:
  - Device shuting down doesn't work, even if the power slide switch is
    used. We must first, via MDIO, set the unused LED2 at the ethernet
    phy0 to off state.

Signed-off-by: Daniel González Cabanelas <dgcbueu at gmail.com>
---
 .../base-files/lib/preinit/06_set_iface_mac   |   4 +
 .../base-files/lib/upgrade/platform.sh        |   3 +
 .../boot/dts/armada-370-buffalo-ls421de.dts   | 364 ++++++++++++++++++
 target/linux/mvebu/image/Makefile             |  14 +
 target/linux/mvebu/image/cortexa9.mk          |  21 +
 .../250-buffalo_ls421de-build_dtb.patch       |  10 +
 6 files changed, 416 insertions(+)
 create mode 100644 target/linux/mvebu/files-4.19/arch/arm/boot/dts/armada-370-buffalo-ls421de.dts
 create mode 100644 target/linux/mvebu/patches-4.19/250-buffalo_ls421de-build_dtb.patch

diff --git a/target/linux/mvebu/cortexa9/base-files/lib/preinit/06_set_iface_mac b/target/linux/mvebu/cortexa9/base-files/lib/preinit/06_set_iface_mac
index fd41836c8d..62ce2653a0 100644
--- a/target/linux/mvebu/cortexa9/base-files/lib/preinit/06_set_iface_mac
+++ b/target/linux/mvebu/cortexa9/base-files/lib/preinit/06_set_iface_mac
@@ -9,6 +9,10 @@ preinit_set_mac_address() {
 	. /lib/functions.sh
 
 	case $(board_name) in
+	buffalo,ls421de)
+		mac=$(mtd_get_mac_ascii u-boot-env eth1addr)
+		ip link set dev eth0 address $mac 2>/dev/null
+		;;
 	linksys,caiman|linksys,cobra|linksys,rango|linksys,shelby|linksys,venom)
 		# rename interfaces back to the way they were with 4.4
 		case "$(readlink /sys/class/net/eth0)" in
diff --git a/target/linux/mvebu/cortexa9/base-files/lib/upgrade/platform.sh b/target/linux/mvebu/cortexa9/base-files/lib/upgrade/platform.sh
index 8baed969a3..63042b1535 100755
--- a/target/linux/mvebu/cortexa9/base-files/lib/upgrade/platform.sh
+++ b/target/linux/mvebu/cortexa9/base-files/lib/upgrade/platform.sh
@@ -22,6 +22,9 @@ platform_check_image() {
 
 platform_do_upgrade() {
 	case "$(board_name)" in
+	buffalo,ls421de)
+		nand_do_upgrade "$1"
+		;;
 	cznic,turris-omnia|\
 	solidrun,clearfog-base-a1|\
 	solidrun,clearfog-pro-a1)
diff --git a/target/linux/mvebu/files-4.19/arch/arm/boot/dts/armada-370-buffalo-ls421de.dts b/target/linux/mvebu/files-4.19/arch/arm/boot/dts/armada-370-buffalo-ls421de.dts
new file mode 100644
index 0000000000..ca161964a4
--- /dev/null
+++ b/target/linux/mvebu/files-4.19/arch/arm/boot/dts/armada-370-buffalo-ls421de.dts
@@ -0,0 +1,364 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for Buffalo LinkStation LS421DE
+ *
+ * Copyright (C) 2020 Daniel González Cabanelas <dgcbueu at gmail.com>
+ */
+
+/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include "armada-370.dtsi"
+#include "mvebu-linkstation-fan.dtsi"
+
+/ {
+	model = "Buffalo LinkStation LS421DE";
+	compatible = "buffalo,ls421de", "marvell,armada370", "marvell,armada-370-xp";
+
+	aliases {
+		led-boot = &led_boot;
+		led-failsafe = &led_failsafe;
+		led-running = &led_power;
+		led-upgrade = &led_upgrade;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlyprintk noinitrd rootfstype=squashfs";
+		append-rootblock = "nullparameter="; /* override the bootloader args */
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x20000000>; /* 512 MB */
+	};
+
+	soc {
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000
+			  MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000
+			  MBUS_ID(0x09, 0x01) 0 0xf1100000 0x10000>;
+
+		internal-regs {
+			rtc at 10300 {
+				status = "disabled";
+			};
+
+			serial at 12000 {
+				status = "okay";
+			};
+
+			sata at a0000 {
+				nr-ports = <2>;
+				status = "okay";
+			};
+
+			ethernet at 74000 {
+				pinctrl-0 = <&ge1_rgmii_pins>;
+				pinctrl-names = "default";
+				status = "okay";
+				phy = <&phy0>;
+				phy-mode = "rgmii-id";
+			};
+
+			mvsdio at d4000 {
+				pinctrl-0 = <&sdio_pins2>;
+				pinctrl-names = "default";
+				status = "okay";
+				/* No CD or WP GPIOs */
+				broken-cd;
+			};
+
+			usb at 50000 {
+				vcc-supply = <&usb_v5_regulator>;
+				status = "okay";
+			};
+
+			i2c at 11000 {
+				compatible = "marvell,mv64xxx-i2c";
+				clock-frequency = <100000>;
+				status = "okay";
+
+				rs5c372a: rs5c372a at 32 {
+					compatible = "ricoh,rs5c372a";
+					reg = <0x32>;
+				};
+			};
+		};
+	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-0 = <&pmx_power_usb &pmx_power_hdd1 &pmx_power_hdd2>;
+
+		pinctrl-names = "default";
+
+		usb_v5_regulator: usb-v5-regulator {
+			compatible = "regulator-fixed";
+			regulator-name = "USB";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			startup-delay-us = <4000000>;
+			enable-active-high;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&gpio0 5 GPIO_ACTIVE_HIGH>;
+		};
+
+		ata1_regulator: ata1-regulator {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "HDD1";
+			regulator-min-microvolt = <12000000>;
+			regulator-max-microvolt = <12000000>;
+			startup-delay-us = <2000000>;
+			enable-active-high;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&gpio0 8 GPIO_ACTIVE_HIGH>;
+		};
+
+		ata2_regulator: ata2-regulator {
+			compatible = "regulator-fixed";
+			reg = <2>;
+			regulator-name = "HDD2";
+			regulator-min-microvolt = <12000000>;
+			regulator-max-microvolt = <12000000>;
+			startup-delay-us = <4000000>;
+			enable-active-high;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&gpio0 9 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-0 = <&pmx_hdd_present &pmx_buttons>;
+		pinctrl-names = "default";
+
+		hdd1-present {
+			label = "HDD1 Present";
+			linux,code = <KEY_PROG1>;
+			gpios = <&gpio0 11 GPIO_ACTIVE_LOW>;
+		};
+
+		hdd2-present {
+			label = "HDD2 Present";
+			linux,code = <KEY_PROG2>;
+			gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
+
+		};
+
+		power {
+			label = "Power Switch";
+			linux,code = <KEY_POWER>;
+			linux,input-type = <EV_SW>;
+			gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
+		};
+
+		function {
+			label = "Function Button";
+			linux,code = <KEY_OPTION>;
+			gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio_leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pmx_leds1 &pmx_leds2>;
+
+		system_red {
+			label = "ls421de:red:system";
+			gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_power: power_white {
+			label = "ls421de:white:power";
+			gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+		};
+
+		led_failsafe: power_red {
+			label = "ls421de:red:power";
+			gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_upgrade: power_orange {
+			label = "ls421de:orange:power";
+			gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_boot: system_white {
+			label = "ls421de:white:system";
+			gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
+		};
+
+		hdd1_red {
+			label = "ls421de:red:hdd1";
+			gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+			linux,default-trigger = "disk-activity";
+		};
+
+		hdd2_red {
+			label = "ls421de:red:hdd2";
+			gpios = <&gpio1 30 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+			linux,default-trigger = "disk-activity";
+		};
+	};
+
+	/* FIXME: this driver needs to be aware of the LED2 eth phy use,
+	   which must be set to off state before shutting down the machine */
+	restart_poweroff {
+		compatible = "restart-poweroff";
+	};
+
+	gpio_fan {
+		gpios = <&gpio0 13 GPIO_ACTIVE_HIGH
+			&gpio0 14 GPIO_ACTIVE_HIGH>;
+
+		alarm-gpios = <&gpio0 10 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&pinctrl {
+	pmx_power_usb: pmx-power-usb {
+		marvell,pins = "mpp5";
+		marvell,function = "gpo";
+	};
+	pmx_power_hdd1: pmx-power-hdd1 {
+		marvell,pins = "mpp8";
+		marvell,function = "gpio";
+	};
+	pmx_power_hdd2: pmx-power-hdd2 {
+		marvell,pins = "mpp9";
+		marvell,function = "gpo";
+	};
+	pmx_fan_lock: pmx-fan-lock {
+		marvell,pins = "mpp10";
+		marvell,function = "gpio";
+	};
+	pmx_hdd_present: pmx-hdd-present {
+		marvell,pins = "mpp11", "mpp12";
+		marvell,function = "gpio";
+	};
+	pmx_fan_high: pmx-fan-high {
+		marvell,pins = "mpp13";
+		marvell,function = "gpio";
+	};
+	pmx_fan_low: pmx-fan-low {
+		marvell,pins = "mpp14";
+		marvell,function = "gpio";
+	};
+	pmx_buttons: pmx-buttons {
+		marvell,pins = "mpp15", "mpp16";
+		marvell,function = "gpio";
+	};
+	pmx_leds1: pmx-leds {
+		marvell,pins = "mpp7", "mpp54", "mpp59", "mpp61";
+		marvell,function = "gpo";
+	};
+	pmx_leds2: pmx-leds {
+		marvell,pins = "mpp55", "mpp57", "mpp62";
+		marvell,function = "gpio";
+	};
+};
+
+&pciec {
+	status = "okay";
+	/* Connected to uPD720202 USB 3.0 Host */
+	pcie at 1,0 {
+		status = "okay";
+	};
+	/* Unpopulated miniPCIe slot */
+	pcie at 2,0 {
+		status = "disabled";
+	};
+};
+
+&mdio {
+	pinctrl-0 = <&mdio_pins>;
+	pinctrl-names = "default";
+
+	phy0: ethernet-phy at 0 { /* Marvell 88E1518 */
+		reg = <0>;
+		/* LED2 is used to inform uBoot if the power-switch was slided to
+		   the "off" position, and then shutdown the machine.
+			Page 0x3, Register 0x10, bit 8:
+				0x800: LED2 off, shutdown the machine
+				0x900: LED2 on, boot the machine                    */
+		marvell,reg-init = <0x3 0x10 0x1 0x1991>, /* LED Function */
+					<0x3 0x11 0x1 0x4401>, /* LED polarity */
+					<0x3 0x12 0x1 0x4905>; /* LED Timer */
+	};
+};
+
+&nand_controller {
+	status = "okay";
+
+	nand at 0 {
+		reg = <0>;
+		label = "pxa3xx_nand-0";
+		nand-rb = <0>;
+		marvell,nand-keep-config;
+		nand-on-flash-bbt;
+		nand-ecc-strength = <4>;
+		nand-ecc-step-size = <512>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition at 0 {
+				label = "kernel";
+				reg = <0x00000000 0x02000000>;  /* 32 MiB */
+			};
+
+			partition at 2000000 {
+				label = "ubi";
+				reg = <0x02000000 0x1e000000>;  /* 480 MiB */
+			};
+
+			nand_flash at 0 {
+				label = "nand_all";
+				reg = <0 0>; /* full flash */
+			};
+		};
+	};
+};
+
+&spi0 {
+	status = "okay";
+	pinctrl-0 = <&spi0_pins2>;
+	pinctrl-names = "default";
+
+	spi-flash at 0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "mxicy,mx25l8005", "jedec,spi-nor";
+		reg = <0>; /* Chip select 0 */
+		spi-max-frequency = <50000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition at 0 {
+				reg = <0x00000 0xf0000>; /* 960 KiB*/
+				label = "u-boot";
+				read-only;
+			};
+			partition at f0000 {
+				reg = <0xf0000 0x10000>; /* 64 KiB */
+				label = "u-boot-env";
+			};
+		};
+	};
+};
diff --git a/target/linux/mvebu/image/Makefile b/target/linux/mvebu/image/Makefile
index ef9274866d..3a47878069 100644
--- a/target/linux/mvebu/image/Makefile
+++ b/target/linux/mvebu/image/Makefile
@@ -40,6 +40,20 @@ define Build/boot-img-ext4
 	make_ext4fs -J -L kernel -l $(CONFIG_TARGET_KERNEL_PARTSIZE)M $@.bootimg $@.boot
 endef
 
+define Build/buffalo-kernel-jffs2
+	rm -rf $(KDIR)/kernel_jffs2 $@.fakerd
+	mkdir -p $(KDIR)/kernel_jffs2
+	dd if=/dev/zero of=$@.fakerd bs=131008 count=1 conv=sync
+	$(STAGING_DIR_HOST)/bin/mkimage \
+		-T ramdisk -A $(LINUX_KARCH) -O linux -C gzip -n 'fake initrd' \
+		-d $@.fakerd $(KDIR)/kernel_jffs2/initrd.buffalo
+	cp $@ $(KDIR)/kernel_jffs2/uImage.buffalo
+	$(STAGING_DIR_HOST)/bin/mkfs.jffs2 \
+		--little-endian -v --squash-uids -q -f -n -x lzma -x rtime -m none \
+		--eraseblock=128KiB --pad=$(KERNEL_SIZE) -d $(KDIR)/kernel_jffs2 -o $@
+	rm -rf $(KDIR)/kernel_jffs2 $@.fakerd
+endef
+
 define Build/sdcard-img
 	SIGNATURE="$(IMG_PART_SIGNATURE)" \
 	./gen_mvebu_sdcard_img.sh $@ \
diff --git a/target/linux/mvebu/image/cortexa9.mk b/target/linux/mvebu/image/cortexa9.mk
index 85bfa94dbd..aa8e31dbdf 100644
--- a/target/linux/mvebu/image/cortexa9.mk
+++ b/target/linux/mvebu/image/cortexa9.mk
@@ -6,6 +6,27 @@
 # See /LICENSE for more information.
 #
 
+define Device/buffalo_ls421de
+  $(Device/NAND-128K)
+  DEVICE_VENDOR := Buffalo
+  DEVICE_MODEL := LinkStation LS421DE
+  UBINIZE_OPTS := -E 5
+  SUBPAGESIZE :=
+  KERNEL_SIZE := 33554432
+  FILESYSTEMS := squashfs ubifs
+  KERNEL := kernel-bin | append-dtb |  uImage none | buffalo-kernel-jffs2
+  KERNEL_INITRAMFS := kernel-bin | append-dtb |  uImage none
+  IMAGES := factory.bin sysupgrade.bin
+  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
+  DEVICE_DTS := armada-370-buffalo-ls421de
+  SUPPORTED_DEVICES += ls421de
+  DEVICE_PACKAGES :=  \
+    kmod-rtc-rs5c372a kmod-hwmon-gpiofan kmod-usb2 kmod-usb3 kmod-usb-storage \
+    kmod-ata-core kmod-ata-marvell-sata kmod-fs-f2fs kmod-fs-ext4 kmod-fs-vfat \
+    kmod-fs-xfs kmod-nls-cp437 kmod-nls-iso8859-1 mkf2fs e2fsprogs partx-utils
+endef
+  TARGET_DEVICES += buffalo_ls421de
+
 define Device/cznic_turris-omnia
   DEVICE_VENDOR := CZ.NIC
   DEVICE_MODEL := Turris Omnia
diff --git a/target/linux/mvebu/patches-4.19/250-buffalo_ls421de-build_dtb.patch b/target/linux/mvebu/patches-4.19/250-buffalo_ls421de-build_dtb.patch
new file mode 100644
index 0000000000..b0f883035d
--- /dev/null
+++ b/target/linux/mvebu/patches-4.19/250-buffalo_ls421de-build_dtb.patch
@@ -0,0 +1,10 @@
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -1135,6 +1135,7 @@
+ 	zynq-zybo.dtb \
+ 	zynq-zybo-z7.dtb
+ dtb-$(CONFIG_MACH_ARMADA_370) += \
++	armada-370-buffalo-ls421de.dtb \
+ 	armada-370-db.dtb \
+ 	armada-370-dlink-dns327l.dtb \
+ 	armada-370-mirabox.dtb \
-- 
2.26.0





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