bmips: Add Inteno XG6846 board

This adds support for the Inteno XG6846 board based on the
Broadcom MIPS 6328 SoC.

The default boot will read a uImage from flash and boot it.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
index 1b17911..14fbce5 100644
--- a/arch/mips/dts/Makefile
+++ b/arch/mips/dts/Makefile
@@ -14,6 +14,7 @@
 dtb-$(CONFIG_BOARD_COMTREND_VR3032U) += comtrend,vr-3032u.dtb
 dtb-$(CONFIG_BOARD_COMTREND_WAP5813N) += comtrend,wap-5813n.dtb
 dtb-$(CONFIG_BOARD_HUAWEI_HG556A) += huawei,hg556a.dtb
+dtb-$(CONFIG_BOARD_INTENO_XG6846) += inteno,xg6846.dtb
 dtb-$(CONFIG_BOARD_MT7620_RFB) += mediatek,mt7620-rfb.dtb
 dtb-$(CONFIG_BOARD_MT7620_MT7530_RFB) += mediatek,mt7620-mt7530-rfb.dtb
 dtb-$(CONFIG_BOARD_MT7621_RFB) += mediatek,mt7621-rfb.dtb
diff --git a/arch/mips/dts/inteno,xg6846.dts b/arch/mips/dts/inteno,xg6846.dts
new file mode 100644
index 0000000..180cfdc
--- /dev/null
+++ b/arch/mips/dts/inteno,xg6846.dts
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2023 Linus Walleij <linusw@kernel.org>
+ *
+ * This is a diet version of the device tree from Linux,
+ * suitable for U-Boot.
+ */
+
+/dts-v1/;
+
+#include "brcm,bcm6328.dtsi"
+
+/ {
+	model = "Inteno XG6846";
+	compatible = "inteno,xg6846", "brcm,bcm6328";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&leds {
+	status = "okay";
+
+	led@18 {
+		reg = <18>;
+		active-low;
+		label = "red:pwr";
+	};
+
+	led@20 {
+		reg = <20>;
+		active-low;
+		label = "green:pwr";
+	};
+};
+
+&spi {
+	status = "okay";
+
+	spi-flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <33333334>;
+	};
+};
+
+&uart0 {
+	bootph-all;
+	status = "okay";
+};
diff --git a/arch/mips/mach-bmips/Kconfig b/arch/mips/mach-bmips/Kconfig
index 01d919f..eb9ea34 100644
--- a/arch/mips/mach-bmips/Kconfig
+++ b/arch/mips/mach-bmips/Kconfig
@@ -203,6 +203,17 @@
 	  ethernet ports, 3 USB ports, 1 UART, GPIO buttons and LEDs, and
 	  a RT3062F/AR9223 (PCI).
 
+config BOARD_INTENO_XG6846
+	bool "Inteno XG6846"
+	depends on SOC_BMIPS_BCM6328
+	select BMIPS_SUPPORTS_BOOT_RAM
+	help
+	  Inteno XG6846 boards have a BCM6328 SoC with 64 MB of RAM and 16
+	  MB of flash (SPI).
+	  Between its different peripherals there's an integrated switch with 4
+	  ethernet ports, 1 UART, GPIO buttons and LEDs, and a Marvell
+	  DSA switch connected to a fiber SFP.
+
 config BOARD_NETGEAR_CG3100D
 	bool "Netgear CG3100D"
 	depends on SOC_BMIPS_BCM3380
@@ -272,6 +283,7 @@
 source "board/comtrend/vr3032u/Kconfig"
 source "board/comtrend/wap5813n/Kconfig"
 source "board/huawei/hg556a/Kconfig"
+source "board/inteno/xg6846/Kconfig"
 source "board/netgear/cg3100d/Kconfig"
 source "board/netgear/dgnd3700v2/Kconfig"
 source "board/sagem/f@st1704/Kconfig"