arm64: imx: Add support for imx8mp-beacon-kit

Beacon Embedded has an i.MX8M Plus development kit which consists
of a SOM + baseboard.  The SOM includes Bluetooth, WiFi, QSPI, eMMC,
and one Ethernet PHY. The baseboard includes audio, HDMI, USB-C Dual
Role port, USB Hub with five ports, a PCIe slot, and a second Ethernet
PHY.  The device trees are already queued for inclusion in Linux 6.3.

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

include/configs/imx8mp_beacon.h

@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2023 Logic PD, Inc dba Beacon EmbeddedWorks
+ */
+
+#ifndef __IMX8MP_BEACON_H
+#define __IMX8MP_BEACON_H
+
+#include <asm/arch/imx-regs.h>
+
+#define CFG_SYS_UBOOT_BASE	(QSPI0_AMBA_BASE + CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR * 512)
+
+#if defined(CONFIG_CMD_NET)
+#define PHY_ANEG_TIMEOUT 20000
+#endif
+
+/* Link Definitions */
+
+#define CFG_SYS_INIT_RAM_ADDR	0x40000000
+#define CFG_SYS_INIT_RAM_SIZE	0x80000
+
+/* Totally 6GB DDR */
+#define CFG_SYS_SDRAM_BASE		0x40000000
+#define PHYS_SDRAM			0x40000000
+#define PHYS_SDRAM_SIZE			0xC0000000	/* 3 GB */
+#define PHYS_SDRAM_2			0x100000000
+#define PHYS_SDRAM_2_SIZE		0xC0000000	/* 3 GB */
+
+#endif