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, 182 insertions, 0 deletions

diff --git a/target/linux/bmips/dts/bcm6318-comtrend-ar-5315u.dts b/target/linux/bmips/dts/bcm6318-comtrend-ar-5315u.dts
new file mode 100644
index 0000000000..be21e7f262
--- /dev/null
+++ b/target/linux/bmips/dts/bcm6318-comtrend-ar-5315u.dts
@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "bcm6318.dtsi"
+
+/ {
+	model = "Comtrend AR-5315u";
+	compatible = "comtrend,ar-5315u", "brcm,bcm6318";
+
+	aliases {
+		led-boot = &led_power_green;
+		led-failsafe = &led_power_green;
+		led-running = &led_power_green;
+		led-upgrade = &led_power_green;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x04000000>;
+	};
+
+	keys {
+		compatible = "gpio-keys-polled";
+		poll-interval = <20>;
+
+		wps {
+			label = "wps";
+			gpios = <&pinctrl 3 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+			debounce-interval = <60>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&pinctrl 33 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+			debounce-interval = <60>;
+		};
+	};
+};
+
+&ehci {
+	status = "okay";
+};
+
+&hsspi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <62500000>;
+		spi-tx-bus-width = <2>;
+		spi-rx-bus-width = <2>;
+		reg = <0>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			cfe: partition@0 {
+				reg = <0x000000 0x010000>;
+				label = "cfe";
+				read-only;
+			};
+
+			partition@10000 {
+				compatible = "brcm,bcm963xx-imagetag";
+				reg = <0x010000 0xfe0000>;
+				label = "firmware";
+			};
+
+			partition@ff0000 {
+				reg = <0xff0000 0x010000>;
+				label = "nvram";
+			};
+		};
+	};
+};
+
+&leds {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_leds
+		     &pinctrl_ephy0_act_led &pinctrl_ephy1_act_led
+		     &pinctrl_ephy2_act_led &pinctrl_ephy3_act_led>;
+
+	led@0 {
+		reg = <0>;
+		active-low;
+		label = "green:wps";
+	};
+
+	led_power_green: led@1 {
+		reg = <1>;
+		active-low;
+		label = "green:power";
+	};
+
+	led@2 {
+		reg = <2>;
+		active-low;
+		label = "green:usb";
+	};
+
+	led@4 {
+		reg = <4>;
+		brcm,hardware-controlled;
+		brcm,link-signal-sources = <4>;
+		/* EPHY0 Act */
+	};
+
+	led@5 {
+		reg = <5>;
+		brcm,hardware-controlled;
+		brcm,link-signal-sources = <5>;
+		/* EPHY1 Act */
+	};
+
+	led@6 {
+		reg = <6>;
+		brcm,hardware-controlled;
+		brcm,link-signal-sources = <6>;
+		/* EPHY2 Act */
+	};
+
+	led@7 {
+		reg = <7>;
+		brcm,hardware-controlled;
+		brcm,link-signal-sources = <7>;
+		/* EPHY3 Act */
+	};
+
+	led@8 {
+		reg = <8>;
+		active-low;
+		label = "green:internet";
+	};
+
+	led@9 {
+		reg = <9>;
+		active-low;
+		label = "red:internet";
+	};
+
+	led@10 {
+		reg = <10>;
+		active-low;
+		label = "green:dsl";
+	};
+
+	led@11 {
+		reg = <11>;
+		active-low;
+		label = "red:power";
+	};
+};
+
+&ohci {
+	status = "okay";
+};
+
+&pinctrl {
+	pinctrl_leds: leds {
+		function = "led";
+		pins = "gpio0", "gpio1",
+		       "gpio2", "gpio8",
+		       "gpio9", "gpio10",
+		       "gpio11";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&usbh {
+	status = "okay";
+};