arm: mvebu: add .dts file for Synology DS213j

Synology DS213j is a 2-bay NAS powered by a Marvell Armada 370
(88F6710 @1.2Ghz). It is very similar on many aspects to previous
2-bay synology models based on Marvell kirkwood SoC. Here is a
short summary of the device:

 - 512MB RAM
 - boot on SPI flash (64Mbit Micron N25Q064)
 - 1 GbE interface (Armada MAC connected to a Marvell 88E1512
   PHY via SGMII)
 - 2 rear USB 2.0 ports (directly handled by the Armada 370)
 - 2 internal SATA ports handled by the Armada 370: 2 GPIO for
   presence, 2 for powering them
 - two front amber LED (disk1, disk2) controlled by the SoC
 - Seiko S-35390A I2C RTC chip
 - UART0 providing serial console
 - UART1 used for poweroff (connected to a TI MSP430F2111)
 - Fan handled via 4 GPIO (3 for speed, 1 for alarm)

Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Link: https://lkml.kernel.org/r/20f1a03897df1d825b62abdd525e588a8e39b3ec.1416613429.git.arno@natisbad.org
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

2 files changed, 318 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 31529ccc67a0..cfcf400a3a6c 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -496,7 +496,8 @@ dtb-$(CONFIG_MACH_ARMADA_370) += \
         armada-370-mirabox.dtb \
         armada-370-netgear-rn102.dtb \
         armada-370-netgear-rn104.dtb \
-        armada-370-rd.dtb
+        armada-370-rd.dtb \
+        armada-370-synology-ds213j.dtb
 dtb-$(CONFIG_MACH_ARMADA_375) += \
         armada-375-db.dtb
 dtb-$(CONFIG_MACH_ARMADA_38X) += \
diff --git a/arch/arm/boot/dts/armada-370-synology-ds213j.dts b/arch/arm/boot/dts/armada-370-synology-ds213j.dts
new file mode 100644
index 000000000000..70fecde76ccb
--- /dev/null
+++ b/arch/arm/boot/dts/armada-370-synology-ds213j.dts
@@ -0,0 +1,316 @@
+/*
+ * Device Tree file for Synology DS213j
+ *
+ * Copyright (C) 2014, Arnaud EBALARD <arno@natisbad.org>
+ *
+ * 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.
+ *
+ * Note: this Device Tree assumes that the bootloader has remapped the
+ * internal registers to 0xf1000000 (instead of the old 0xd0000000).
+ * The 0xf1000000 is the default used by the recent, DT-capable, U-Boot
+ * bootloaders provided by Marvell. It is used in recent versions of
+ * DSM software provided by Synology. Nonetheless, some earlier boards
+ * were delivered with an older version of u-boot that left internal
+ * registers mapped at 0xd0000000. If you have such a device you will
+ * not be able to directly boot a kernel based on this Device Tree. In
+ * that case, the preferred solution is to update your bootloader (e.g.
+ * by upgrading to latest version of DSM, or building a new one and
+ * installing it from u-boot prompt) or adjust the Devive Tree
+ * (s/0xf1000000/0xd0000000/ in 'ranges' below).
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "armada-370.dtsi"
+
+/ {
+        model = "Synology DS213j";
+        compatible = "synology,ds213j", "marvell,armada370",
+                     "marvell,armada-370-xp";
+
+        chosen {
+                bootargs = "console=ttyS0,115200 earlyprintk";
+                stdout-path = &uart0;
+        };
+
+        memory {
+                device_type = "memory";
+                reg = <0x00000000 0x20000000>; /* 512 MB */
+        };
+
+        soc {
+                ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
+                          MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000>;
+
+                internal-regs {
+
+                        /* RTC provided by Seiko S-35390A I2C RTC chip below */
+                        rtc@10300 {
+                                status = "disabled";
+                        };
+
+                        spi0: spi@10600 {
+                                status = "okay";
+
+                                spi-flash@0 {
+                                        #address-cells = <1>;
+                                        #size-cells = <1>;
+                                        compatible = "micron,n25q064";
+                                        reg = <0>; /* Chip select 0 */
+                                        spi-max-frequency = <20000000>;
+
+                                        /*
+                                         * Warning!
+                                         *
+                                         * Synology u-boot uses its compiled-in environment
+                                         * and it seems Synology did not care to change u-boot
+                                         * default configuration in order to allow saving a
+                                         * modified environment at a sensible location. So,
+                                         * if you do a 'saveenv' under u-boot, your modified
+                                         * environment will be saved at 1MB after the start
+                                         * of the flash, i.e. in the middle of the uImage.
+                                         * For that reason, it is strongly advised not to
+                                         * change the default environment, unless you know
+                                         * what you are doing.
+                                         */
+                                        partition@00000000 { /* u-boot */
+                                                label = "RedBoot";
+                                                reg = <0x00000000 0x000c0000>; /* 768KB */
+                                        };
+
+                                        partition@000c0000 { /* uImage */
+                                                label = "zImage";
+                                                reg = <0x000c0000 0x002d0000>; /* 2880KB */
+                                        };
+
+                                        partition@00390000 { /* uInitramfs */
+                                                label = "rd.gz";
+                                                reg = <0x00390000 0x00440000>; /* 4250KB */
+                                        };
+
+                                        partition@007d0000 { /* MAC address and serial number */
+                                                label = "vendor";
+                                                reg = <0x007d0000 0x00010000>; /* 64KB */
+                                        };
+
+                                        partition@007e0000 {
+                                                label = "RedBoot config";
+                                                reg = <0x007e0000 0x00010000>; /* 64KB */
+                                        };
+
+                                        partition@007f0000 {
+                                                label = "FIS directory";
+                                                reg = <0x007f0000 0x00010000>; /* 64KB */
+                                        };
+                                };
+                        };
+
+                        i2c@11000 {
+                                compatible = "marvell,mv64xxx-i2c";
+                                pinctrl-0 = <&i2c0_pins>;
+                                pinctrl-names = "default";
+                                clock-frequency = <400000>;
+                                status = "okay";
+
+                                /* Main device RTC chip */
+                                s35390a: s35390a@30 {
+                                         compatible = "sii,s35390a";
+                                         reg = <0x30>;
+                                };
+                        };
+
+                        /* Connected to a header on device's PCB */
+                        serial@12000 {
+                                status = "okay";
+                        };
+
+                        /* Connected to a TI MSP430F2111 for power control */
+                        serial@12100 {
+                                status = "okay";
+                        };
+
+                        poweroff@12100 {
+                                compatible = "synology,power-off";
+                                reg = <0x12100 0x100>;
+                                clocks = <&coreclk 0>;
+                        };
+
+                        /* rear USB port, near reset button */
+                        usb@50000 {
+                                status = "okay";
+                        };
+
+                        /* rear USB port, near RJ45 port */
+                        usb@51000 {
+                                status = "okay";
+                        };
+
+                        mdio {
+                                phy1: ethernet-phy@1 { /* Marvell 88E1512 */
+                                        reg = <1>;
+                                };
+                        };
+
+                        ethernet@70000 {
+                               status = "okay";
+                               phy = <&phy1>;
+                               phy-mode = "sgmii";
+                        };
+
+                        sata@a0000 {
+                                nr-ports = <2>;
+                                status = "okay";
+                        };
+                };
+        };
+
+        gpio-fan-32-38 {
+                status = "okay";
+                compatible = "gpio-fan";
+                pinctrl-0 = <&fan_ctrl_low_pin &fan_ctrl_mid_pin
+                             &fan_ctrl_high_pin &fan_alarm_pin>;
+                pinctrl-names = "default";
+                gpios = <&gpio1 31 GPIO_ACTIVE_HIGH
+                         &gpio2  0 GPIO_ACTIVE_HIGH
+                         &gpio2  1 GPIO_ACTIVE_HIGH>;
+                alarm-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+                gpio-fan,speed-map = <    0 0
+                                       1000 1
+                                       1150 2
+                                       1350 4
+                                       1500 3
+                                       1650 5
+                                       1750 6
+                                       1900 7 >;
+        };
+
+        gpio-leds {
+                compatible = "gpio-leds";
+                pinctrl-0 = <&disk1_led_pin
+                             &disk2_led_pin>;
+                pinctrl-names = "default";
+
+                disk1-led-amber {
+                        label = "synology:amber:disk1";
+                        gpios = <&gpio0 31 GPIO_ACTIVE_LOW>;
+                        default-state = "keep";
+                };
+
+                disk2-led-amber {
+                        label = "synology:amber:disk2";
+                        gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
+                        default-state = "keep";
+                };
+        };
+
+        regulators {
+                compatible = "simple-bus";
+                #address-cells = <1>;
+                #size-cells = <0>;
+                pinctrl-0 = <&sata1_pwr_pin &sata2_pwr_pin>;
+                pinctrl-names = "default";
+
+                sata1_regulator: sata1-regulator {
+                        compatible = "regulator-fixed";
+                        reg = <1>;
+                        regulator-name = "SATA1 Power";
+                        regulator-min-microvolt = <5000000>;
+                        regulator-max-microvolt = <5000000>;
+                        startup-delay-us = <2000000>;
+                        enable-active-high;
+                        regulator-always-on;
+                        regulator-boot-on;
+                        gpio = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+                };
+
+                sata2_regulator: sata2-regulator {
+                        compatible = "regulator-fixed";
+                        reg = <2>;
+                        regulator-name = "SATA2 Power";
+                        regulator-min-microvolt = <5000000>;
+                        regulator-max-microvolt = <5000000>;
+                        startup-delay-us = <4000000>;
+                        enable-active-high;
+                        regulator-always-on;
+                        regulator-boot-on;
+                        gpio = <&gpio1 30 GPIO_ACTIVE_HIGH>;
+                };
+        };
+};
+
+&pinctrl {
+        disk1_led_pin: disk1-led-pin {
+                marvell,pins = "mpp31";
+                marvell,function = "gpio";
+        };
+
+        disk2_led_pin: disk2-led-pin {
+                marvell,pins = "mpp32";
+                marvell,function = "gpio";
+        };
+
+        sata1_pwr_pin: sata1-pwr-pin {
+                marvell,pins = "mpp37";
+                marvell,function = "gpio";
+        };
+
+        sata2_pwr_pin: sata2-pwr-pin {
+                marvell,pins = "mpp62";
+                marvell,function = "gpio";
+        };
+
+        sata1_pres_pin: sata1-pres-pin {
+                marvell,pins = "mpp60";
+                marvell,function = "gpio";
+        };
+
+        sata2_pres_pin: sata2-pres-pin {
+                marvell,pins = "mpp48";
+                marvell,function = "gpio";
+        };
+
+        syno_id_bit0_pin: syno-id-bit0-pin {
+                marvell,pins = "mpp55";
+                marvell,function = "gpio";
+        };
+
+        syno_id_bit1_pin: syno-id-bit1-pin {
+                marvell,pins = "mpp56";
+                marvell,function = "gpio";
+        };
+
+        syno_id_bit2_pin: syno-id-bit2-pin {
+                marvell,pins = "mpp57";
+                marvell,function = "gpio";
+        };
+
+        syno_id_bit3_pin: syno-id-bit3-pin {
+                marvell,pins = "mpp58";
+                marvell,function = "gpio";
+        };
+
+        fan_ctrl_low_pin: fan-ctrl-low-pin {
+                marvell,pins = "mpp65";
+                marvell,function = "gpio";
+        };
+
+        fan_ctrl_mid_pin: fan-ctrl-mid-pin {
+                marvell,pins = "mpp64";
+                marvell,function = "gpio";
+        };
+
+        fan_ctrl_high_pin: fan-ctrl-high-pin {
+                marvell,pins = "mpp63";
+                marvell,function = "gpo";
+        };
+
+        fan_alarm_pin: fan-alarm-pin {
+                marvell,pins = "mpp38";
+                marvell,function = "gpio";
+        };
+};