bmips: add new target

This target has full device tree support, thus reducing the number of
patches needed for bcm63xx, in which there's a patch for every board.

The intention is to start with a minimal amount of downstream patches and
start upstreaming all of them.

Current status:
 - Enabling EHCI/OHCI on BCM6358 causes a kernel panic.
 - BCM63268 lacks Timer Clocks/Reset support.
 - No PCI/PCIe drivers.
 - No ethernet drivers.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Acked-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 226 insertions, 0 deletions

diff --git a/target/linux/bmips/dts/bcm6362-netgear-dgnd3700-v2.dts b/target/linux/bmips/dts/bcm6362-netgear-dgnd3700-v2.dts
new file mode 100644
index 0000000000..05aedc61cc
--- /dev/null
+++ b/target/linux/bmips/dts/bcm6362-netgear-dgnd3700-v2.dts
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "bcm6362.dtsi"
+
+/ {
+	model = "Netgear DGND3700 v2";
+	compatible = "netgear,dgnd3700-v2", "brcm,bcm6362";
+
+	aliases {
+		led-boot = &led_power_green;
+		led-failsafe = &led_power_green;
+		led-running = &led_power_green;
+		led-upgrade = &led_power_green;
+
+		led-ethernet = &led_ethernet_green;
+		led-usb = &led_usb1_green;
+		led-usb2 = &led_usb2_green;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x04000000>;
+	};
+
+	keys {
+		compatible = "gpio-keys-polled";
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			gpios = <&pinctrl 24 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+			debounce-interval = <60>;
+		};
+
+		wlan {
+			label = "wlan";
+			gpios = <&pinctrl 25 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WLAN>;
+			debounce-interval = <60>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&pinctrl 26 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led@28 {
+			label = "green:dsl";
+			gpios = <&pinctrl 28 GPIO_ACTIVE_LOW>;
+		};
+
+		led@34 {
+			label = "red:power";
+			gpios = <&pinctrl 34 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&ehci {
+	status = "okay";
+};
+
+&leds {
+	status = "okay";
+
+	brcm,serial-leds;
+	brcm,serial-dat-low;
+	brcm,serial-shift-inv;
+	brcm,serial-mux;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_leds &pinctrl_serial_led>;
+
+	led@1 {
+		reg = <1>;
+		active-low;
+		label = "green:internet";
+	};
+
+	led_power_green: led@8 {
+		reg = <8>;
+		label = "green:power";
+	};
+
+	led@9 {
+		reg = <9>;
+		active-low;
+		label = "green:wps";
+	};
+
+	led@10 {
+		reg = <10>;
+		active-low;
+		label = "green:usb1";
+	};
+
+	led@11 {
+		reg = <11>;
+		active-low;
+		label = "green:usb2";
+	};
+
+	led@12 {
+		reg = <12>;
+		active-low;
+		label = "amber:internet";
+	};
+
+	led_ethernet_green: led@13 {
+		reg = <13>;
+		active-low;
+		label = "green:ethernet";
+	};
+
+	led@14 {
+		reg = <14>;
+		active-low;
+		label = "amber:dsl";
+	};
+
+	led_usb1_green: led@16 {
+		reg = <16>;
+		active-low;
+		label = "amber:usb1";
+	};
+
+	led_usb2_green: led@17 {
+		reg = <17>;
+		active-low;
+		label = "amber:usb2";
+	};
+
+	led@18 {
+		reg = <18>;
+		active-low;
+		label = "amber:ethernet";
+	};
+};
+
+&nflash {
+	status = "okay";
+
+	nandcs@0 {
+		compatible = "brcm,nandcs";
+		#size-cells = <1>;
+		#address-cells = <1>;
+		reg = <0>;
+		nand-ecc-step-size = <512>;
+		nand-ecc-strength = <15>;
+		nand-on-flash-bbt;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			cferom: partition@0 {
+				label = "cferom";
+				reg = <0x0000000 0x0004000>;
+				read-only;
+			};
+
+			partition@4000 {
+				compatible = "brcm,wfi";
+				label = "wfi";
+				reg = <0x0004000 0x1c7c000>;
+			};
+
+			partition@1c80000 {
+				label = "flag";
+				reg = <0x1c80000 0x0040000>;
+				read-only;
+			};
+
+			partition@1cc0000 {
+				label = "pcbasn";
+				reg = <0x1cc0000 0x0040000>;
+				read-only;
+			};
+
+			partition@1d00000 {
+				label = "xxx";
+				reg = <0x1d00000 0x0080000>;
+				read-only;
+			};
+
+			partition@1d80000 {
+				label = "language_dev";
+				reg = <0x1d80000 0x0040000>;
+				read-only;
+			};
+
+			partition@1dc0000 {
+				label = "scnvram";
+				reg = <0x1dc0000 0x0100000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&ohci {
+	status = "okay";
+};
+
+&pinctrl {
+	pinctrl_leds: leds {
+		function = "led";
+		pins = "gpio1";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&usbh {
+	status = "okay";
+};