board: Add MT8183 pumpkin board support

Add the MT8183 pumpkin board support.

Signed-off-by: Fabien Parent <fparent@baylibre.com>

include/configs/mt8183.h

@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Configuration for MT8183 based boards
+ *
+ * Copyright (C) 2021 BayLibre, SAS
+ * Author: Fabien Parent <fparent@baylibre.com
+ */
+
+#ifndef __MT8183_H
+#define __MT8183_H
+
+#include <linux/sizes.h>
+
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_MALLOC_LEN		SZ_4M
+
+#define CONFIG_CPU_ARMV8
+#define COUNTER_FREQUENCY		13000000
+
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE	-4
+#define CONFIG_SYS_NS16550_MEM32
+#define CONFIG_SYS_NS16550_COM1		0x11005200
+#define CONFIG_SYS_NS16550_CLK		26000000
+
+#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_TEXT_BASE + SZ_2M - \
+						 GENERATED_GBL_DATA_SIZE)
+
+#define CONFIG_SYS_BOOTM_LEN		SZ_64M
+
+/* Environment settings */
+#include <config_distro_bootcmd.h>
+
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 0)
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"scriptaddr=0x40000000\0" \
+	BOOTENV
+
+#endif