arm64: mvebu: Add Armada 3700 db-88f3720 development board support

This patch adds basic support for the Marvell Armada 3700 DB-88F3720
development board. Supported are the following interfaces:
- UART
- SPI (incl. SPI NOR)
- I2C
- Ethernet

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
diff --git a/include/configs/mvebu_db-88f3720.h b/include/configs/mvebu_db-88f3720.h
new file mode 100644
index 0000000..e785f24
--- /dev/null
+++ b/include/configs/mvebu_db-88f3720.h
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2016 Stefan Roese <sr@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _CONFIG_MVEBU_DB_88F3720_H
+#define _CONFIG_MVEBU_DB_88F3720_H
+
+/*
+ * High Level Configuration Options (easy to change)
+ */
+#define CONFIG_DISPLAY_BOARDINFO_LATE
+#define CONFIG_ARCH_EARLY_INIT_R
+
+#define	CONFIG_SYS_TEXT_BASE	0x00000000
+
+/* additions for new ARM relocation support */
+#define CONFIG_SYS_SDRAM_BASE	0x00000000
+
+#define CONFIG_NR_DRAM_BANKS	1
+
+/* auto boot */
+#define CONFIG_PREBOOT
+
+#define CONFIG_BAUDRATE			115200
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, \
+					  115200, 230400, 460800, 921600 }
+
+/*
+ * For booting Linux, the board info and command line data
+ * have to be in the first 8 MB of memory, since this is
+ * the maximum mapped by the Linux kernel during initialization.
+ */
+#define CONFIG_CMDLINE_TAG		/* enable passing of ATAGs  */
+#define CONFIG_INITRD_TAG		/* enable INITRD tag */
+#define CONFIG_SETUP_MEMORY_TAGS	/* enable memory tag */
+
+#define	CONFIG_SYS_CBSIZE	1024	/* Console I/O Buff Size */
+#define	CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE \
+		+sizeof(CONFIG_SYS_PROMPT) + 16)	/* Print Buff */
+
+/*
+ * Size of malloc() pool
+ */
+#define CONFIG_SYS_MALLOC_LEN	(4 << 20) /* 4MiB for malloc() */
+
+/*
+ * Other required minimal configurations
+ */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_CONSOLE_INFO_QUIET	/* some code reduction */
+#define CONFIG_ARCH_CPU_INIT		/* call arch_cpu_init() */
+#define CONFIG_BOARD_EARLY_INIT_F	/* call board_init_f for early inits */
+#define CONFIG_SYS_LOAD_ADDR	0x00800000	/* default load adr- 8M */
+#define CONFIG_SYS_MEMTEST_START 0x00800000	/* 8M */
+#define CONFIG_SYS_MEMTEST_END	0x00ffffff	/*(_16M -1) */
+#define CONFIG_SYS_RESET_ADDRESS 0xffff0000	/* Rst Vector Adr */
+#define CONFIG_SYS_MAXARGS	32	/* max number of command args */
+
+#define CONFIG_SYS_CONSOLE_INFO_QUIET	/* don't print console @ startup */
+#define CONFIG_SYS_ALT_MEMTEST
+
+/* End of 16M scrubbed by training in bootrom */
+#define CONFIG_SYS_INIT_SP_ADDR         (CONFIG_SYS_TEXT_BASE + 0xFF0000)
+
+/*
+ * I2C
+ */
+#define CONFIG_I2C_MV
+#define CONFIG_SYS_I2C_SLAVE		0x0
+
+/*
+ * SPI Flash configuration
+ */
+#define CONFIG_ENV_SPI_BUS		0
+#define CONFIG_ENV_SPI_CS		0
+
+/* SPI NOR flash default params, used by sf commands */
+#define CONFIG_SF_DEFAULT_SPEED		1000000
+#define CONFIG_SF_DEFAULT_MODE		SPI_MODE_0
+#define CONFIG_ENV_SPI_MODE		CONFIG_SF_DEFAULT_MODE
+
+/* Environment in SPI NOR flash */
+#define CONFIG_SYS_NO_FLASH		/* Declare no flash (NOR/SPI) */
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_OFFSET		0x180000 /* as Marvell U-Boot version */
+#define CONFIG_ENV_SIZE			(64 << 10) /* 64KiB */
+#define CONFIG_ENV_SECT_SIZE		(64 << 10) /* 64KiB sectors */
+
+/*
+ * Ethernet Driver configuration
+ */
+#define CONFIG_MVNETA		/* Enable Marvell Gbe Controller Driver */
+#define CONFIG_ENV_OVERWRITE	/* ethaddr can be reprogrammed */
+#define CONFIG_PHY_GIGE		/* GbE speed/duplex detect */
+#define CONFIG_ARP_TIMEOUT	200
+#define CONFIG_NET_RETRY_COUNT	50
+
+/* USB 2.0 */
+#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS 3
+
+/* USB 3.0 */
+#define CONFIG_SYS_USB_XHCI_MAX_ROOT_PORTS 3
+
+#define CONFIG_USB_MAX_CONTROLLER_COUNT (CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS + \
+					 CONFIG_SYS_USB_XHCI_MAX_ROOT_PORTS)
+
+/* USB ethernet */
+#define CONFIG_USB_HOST_ETHER
+#define CONFIG_USB_ETHER_ASIX
+#define CONFIG_USB_ETHER_MCS7830
+#define CONFIG_USB_ETHER_RTL8152
+#define CONFIG_USB_ETHER_SMSC95XX
+
+/*
+ * SATA/SCSI/AHCI configuration
+ */
+#define CONFIG_SCSI
+#define CONFIG_SCSI_AHCI
+#define CONFIG_SCSI_AHCI_PLAT
+#define CONFIG_LIBATA
+#define CONFIG_LBA48
+#define CONFIG_SYS_64BIT_LBA
+
+#define CONFIG_SYS_SCSI_MAX_SCSI_ID	2
+#define CONFIG_SYS_SCSI_MAX_LUN		1
+#define CONFIG_SYS_SCSI_MAX_DEVICE	(CONFIG_SYS_SCSI_MAX_SCSI_ID * \
+					 CONFIG_SYS_SCSI_MAX_LUN)
+
+#define CONFIG_SUPPORT_VFAT
+
+/* DISK Partition support */
+#define CONFIG_EFI_PARTITION
+#define CONFIG_DOS_PARTITION
+#define CONFIG_MAC_PARTITION
+#define CONFIG_ISO_PARTITION		/* Experimental */
+
+#define CONFIG_CMD_PART
+#define CONFIG_PARTITION_UUIDS
+
+#endif /* _CONFIG_MVEBU_DB_88F3720_H */