apm821xx: Add support for the Cisco Meraki MX60/MX60W

This patch adds support for the Cisco Meraki MX60/MX60W Security
Appliance. Flashing information can be found at
https://github.com/riptidewave93/LEDE-MX60

Specs are as follows:
AppliedMicro APM82181 SoC at 800MHz
1GiB NAND - Samsung K9K8G08U0D
512MB DDR RAM - 4x Nanya NT5TU128M8GE-AC
Atheros AR8327-BL1A Gigabit Ethernet Switch
1x USB 2.0 Port

More info can be found at https://wiki.openwrt.org/toh/meraki/mx60

Cc: Christian Lamparter <chunkeey@gmail.com>

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>

1 files changed, 186 insertions, 0 deletions

diff --git a/target/linux/apm821xx/dts/MX60.dts b/target/linux/apm821xx/dts/MX60.dts
new file mode 100644
index 0000000000..4ec0043f32
--- /dev/null
+++ b/target/linux/apm821xx/dts/MX60.dts
@@ -0,0 +1,186 @@
+/*
+ * Device Tree Source for Meraki MX60/MX60W (Buckminster)
+ *
+ * Copyright (C) 2016 Chris Blake <chrisrblake93@gmail.com>
+ *
+ * Based on Cisco Meraki DTS extracted from release wired-12-217818
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without
+ * any warranty of any kind, whether express or implied.
+ */
+
+/dts-v1/;
+
+#include "apm82181.dtsi"
+
+/ {
+	model = "Meraki MX60/MX60W Security Appliance";
+	compatible = "meraki,buckminster";
+
+	aliases {
+		serial0 = &UART1;
+	};
+
+	chosen {
+		linux,stdout-path = "/plb/opb/serial@ef600400";
+	};
+
+};
+
+&CRYPTO {
+	status = "okay";
+};
+
+&PKA {
+	status = "okay";
+};
+
+&TRNG {
+	status = "okay";
+};
+
+&USBOTG0 {
+	status = "okay";
+	dr_mode = "host";
+};
+
+&EBC0 {
+	/* Buckminster has 1GiB of NAND */
+	ndfc@1,0 {
+		status = "okay";
+		nand {
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x00000000 0x00100000>;
+				read-only;
+			};
+
+			partition@100000 {
+				label = "u-boot-env";
+				reg = <0x00100000 0x00100000>;
+				read-only;
+			};
+
+			partition@200000 {
+				label = "oops";
+				reg = <0x00200000 0x00040000>;
+			};
+
+			partition@240000 {
+				label = "ubi";
+				reg = <0x00240000 0x3fdc0000>;
+			};
+
+			all {
+				label = "all";
+				reg = <0x00000000 0x40000000>;
+			};
+		};
+	};
+};
+
+&UART1 {
+	status = "okay";
+};
+
+&GPIO0 {
+	status = "okay";
+};
+
+&IIC0 {
+	status = "okay";
+};
+
+&EMAC0 {
+	status = "okay";
+	phy-handle = <&phy0>;
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		phy0: ethernet-phy@0 {
+			device_type = "ethernet-phy";
+			reg = <0>;
+			qca,ar8327-initvals = <
+				0x0010 0x40000000
+				0x0624 0x007f7f7f
+				0x0004 0x07a00000	/* PAD0_MODE */
+				0x000c 0x01000000	/* PAD6_MODE */
+				0x007c 0x0000007e	/* PORT0_STATUS */
+			>;
+		};
+	};
+};
+
+&POB0 {
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		power-green {
+			label = "mx60:green:power";
+			gpios = <&GPIO0 18 GPIO_ACTIVE_LOW>;
+		};
+
+		power-orange {
+			label = "mx60:orange:power";
+			gpios = <&GPIO0 19 GPIO_ACTIVE_LOW>;
+		};
+
+		wan-green {
+			label = "mx60:green:wan";
+			gpios = <&GPIO0 17 GPIO_ACTIVE_LOW>;
+		};
+
+		wan-orange {
+			label = "mx60:orange:wan";
+			gpios = <&GPIO0 15 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1 {
+			label = "mx60:green:lan1";
+			gpios = <&GPIO0 20 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2 {
+			label = "mx60:green:lan2";
+			gpios = <&GPIO0 21 GPIO_ACTIVE_LOW>;
+		};
+
+		lan3 {
+			label = "mx60:green:lan3";
+			gpios = <&GPIO0 22 GPIO_ACTIVE_LOW>;
+		};
+
+		lan4 {
+			label = "mx60:green:lan4";
+			gpios = <&GPIO0 23 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio_keys_polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <60>;	/* 3 * 20 = 60ms */
+		autorepeat;
+
+		button@1 {
+			label = "Reset button";
+			linux,code = <KEY_RESTART>;
+			gpios = <&GPIO0 16 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&PCIE0 {
+	/* Leave this enabled as u-boot on the MX60 will disable it for us */
+	status = "okay";
+};
+
+&MSI {
+	status = "okay";
+};