bcm968380gerg: add initial support

This add the initial support of the broadcom reference
board bcm968380gerg with a bcm68380 SoC.

This board has 512 MB of RAM, 128 MB of flash (nand),
2 USB port, 1 UART, 4 ethernet ports and BCM43217 (wifi).

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

arch/mips/dts/brcm,bcm968380gerg.dts

@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Philippe Reynes <philippe.reynes@softathome.com>
+ */
+
+/dts-v1/;
+
+#include "brcm,bcm6838.dtsi"
+
+/ {
+	model = "Broadcom bcm68380gerg";
+	compatible = "broadcom,bcm68380gerg", "brcm,bcm6838";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&memory {
+	force-size = <0x10000000>;
+};
+
+&uart0 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&leds {
+	status = "okay";
+
+	led@0 {
+		reg = <0>;
+		active-low;
+		label = "bcm968380gerg:green:usb";
+	};
+};

arch/mips/mach-bmips/Kconfig

@@ -136,6 +136,17 @@ endchoice
 choice
 	prompt "Board select"
 
+config BOARD_BROADCOM_BCM968380GERG
+	bool "Broadcom bcm968380gerg"
+	depends on SOC_BMIPS_BCM6838
+	select BMIPS_SUPPORTS_BOOT_RAM
+	help
+	  Broadcom BCM968380GERG reference board with BCM68380 SoC with 512 MB
+	  of RAM and 128 MB of flash (nand).
+	  Between its different peripherals there's an integrated switch with 4
+	  ethernet ports, 2 USB ports, 1 UART, GPIO buttons and LEDs, and
+	  a BCM43217 (PCIe).
+
 config BOARD_COMTREND_AR5315U
 	bool "Comtrend AR-5315u"
 	depends on SOC_BMIPS_BCM6318
@@ -264,6 +275,7 @@ endchoice
 config BMIPS_SUPPORTS_BOOT_RAM
 	bool
 
+source "board/broadcom/bcm968380gerg/Kconfig"
 source "board/comtrend/ar5315u/Kconfig"
 source "board/comtrend/ar5387un/Kconfig"
 source "board/comtrend/ct5361/Kconfig"

board/broadcom/bcm968380gerg/Kconfig

@@ -0,0 +1,12 @@
+if BOARD_BROADCOM_BCM968380GERG
+
+config SYS_BOARD
+	default "bcm968380gerg"
+
+config SYS_VENDOR
+	default "broadcom"
+
+config SYS_CONFIG_NAME
+	default "broadcom_bcm968380gerg"
+
+endif

board/broadcom/bcm968380gerg/Makefile

@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y += bcm968380gerg.o

board/broadcom/bcm968380gerg/bcm968380gerg.c

@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Philippe Reynes <philippe.reynes@softathome.com>
+ */
+
+#include <common.h>

board/broadcom/bcm968380gerg/board.c

@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Philippe Reynes <philippe.reynes@softathome.com>
+ */
+
+#include <common.h>

configs/bcm968380gerg_ram_defconfig

@@ -0,0 +1,48 @@
+CONFIG_MIPS=y
+CONFIG_SYS_TEXT_BASE=0x80010000
+CONFIG_ARCH_BMIPS=y
+CONFIG_SOC_BMIPS_BCM6838=y
+# CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set
+# CONFIG_MIPS_BOOT_ENV_LEGACY is not set
+CONFIG_MIPS_BOOT_FDT=y
+CONFIG_DEFAULT_DEVICE_TREE="brcm,bcm968380gerg"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_DISPLAY_CPUINFO=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_PROMPT="bcm968380gerg # "
+CONFIG_CMD_CPU=y
+CONFIG_CMD_LICENSE=y
+# CONFIG_CMD_BOOTD is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_CMD_SAVEENV is not set
+# CONFIG_CMD_ENV_EXISTS is not set
+# CONFIG_CMD_CRC32 is not set
+CONFIG_CMD_MEMINFO=y
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_LOADS is not set
+# CONFIG_CMD_MISC is not set
+CONFIG_OF_EMBED=y
+# CONFIG_NET is not set
+# CONFIG_DM_DEVICE_REMOVE is not set
+CONFIG_HAVE_BLOCK_DEVICE=y
+CONFIG_DM_GPIO=y
+CONFIG_LED=y
+CONFIG_LED_BCM6328=y
+CONFIG_LED_BLINK=y
+CONFIG_SPI_FLASH=y
+# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
+CONFIG_PHY=y
+CONFIG_BCM6368_USBH_PHY=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_BCM6328_POWER_DOMAIN=y
+CONFIG_DM_RESET=y
+CONFIG_RESET_BCM6345=y
+# CONFIG_SPL_SERIAL_PRESENT is not set
+CONFIG_DM_SERIAL=y
+CONFIG_BCM6345_SERIAL=y
+CONFIG_LZO=y

include/configs/broadcom_bcm968380gerg.h

@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2018 Philippe Reynes <philippe.reynes@softathome.com>
+ */
+
+#include <configs/bmips_common.h>
+#include <configs/bmips_bcm6838.h>
+
+#define CONFIG_ENV_SIZE			(8 * 1024)