arm: mvebu: Add support for Synology DS116 (Armada 385)

Synology DS116 is a NAS based on Marvell Armada 385 SoC.

Board Specification:

- Marvel MV88F6820 Dual Core at 1.8GHz
- 1 GiB DDR3 RAM
- 8MB Macronix mx25l6405d SPI flash
- I2C
- 2x USB 3.0
- 1x GBE LAN port (PHY: Marvell 88E1510)
- 1x SATA (6 Gbps)
- 3x LED
- PIC16F1829 (connected to uart1)
- GPIO fan
- serial console

Note that this patch depends on the add-support for Thecus N2350 patch:
https://patchwork.ozlabs.org/project/uboot/patch/20230201231306.7010-1-mibodhi@gmail.com/

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
diff --git a/include/configs/ds116.h b/include/configs/ds116.h
new file mode 100644
index 0000000..031f4f6
--- /dev/null
+++ b/include/configs/ds116.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2023 Tony Dinh <mibodhi@gmail.com>
+ *
+ */
+
+#ifndef _CONFIG_DS116_H
+#define _CONFIG_DS116_H
+
+#define PHY_ANEG_TIMEOUT	8000	/* PHY needs a longer aneg time */
+
+/* Keep device tree and initrd in lower memory so the kernel can access them */
+#define RELOCATION_LIMITS_ENV_SETTINGS  \
+	"fdt_high=0x10000000\0"         \
+	"initrd_high=0x10000000\0"
+
+/*
+ * mv-common.h should be defined after CMD configs since it used them
+ * to enable certain macros
+ */
+#include "mv-common.h"
+
+/* Include the common distro boot environment */
+#ifndef CONFIG_SPL_BUILD
+
+#define BOOT_TARGET_DEVICES(func) \
+	func(USB, usb, 0) \
+	func(SCSI, scsi, 0) \
+	func(PXE, pxe, na) \
+	func(DHCP, dhcp, na)
+
+#define KERNEL_ADDR_R	__stringify(0x1000000)
+#define FDT_ADDR_R	__stringify(0x2000000)
+#define RAMDISK_ADDR_R	__stringify(0x2200000)
+#define SCRIPT_ADDR_R	__stringify(0x1800000)
+#define PXEFILE_ADDR_R	__stringify(0x1900000)
+
+#define LOAD_ADDRESS_ENV_SETTINGS \
+	"kernel_addr_r=" KERNEL_ADDR_R "\0" \
+	"fdt_addr_r=" FDT_ADDR_R "\0" \
+	"ramdisk_addr_r=" RAMDISK_ADDR_R "\0" \
+	"scriptaddr=" SCRIPT_ADDR_R "\0" \
+	"pxefile_addr_r=" PXEFILE_ADDR_R "\0"
+
+#include <config_distro_bootcmd.h>
+
+#define CFG_EXTRA_ENV_SETTINGS \
+	RELOCATION_LIMITS_ENV_SETTINGS \
+	LOAD_ADDRESS_ENV_SETTINGS \
+	"fdtfile=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
+	"console=ttyS0,115200\0" \
+	BOOTENV
+
+#endif /* CONFIG_SPL_BUILD */
+
+#endif /* _CONFIG_DS116_H */