board: atmel: sama7g5ek: add initial support for sama7g5ek

Add initial support for sama7g5 evaluation kit board.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>

include/configs/sama7g5ek.h

@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Configuration file for the SAMA7G5EK Board.
+ *
+ * Copyright (C) 2020 Microchip Corporation
+ *		      Eugen Hristev <eugen.hristev@microchip.com>
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#define CONFIG_SYS_AT91_SLOW_CLOCK      32768
+#define CONFIG_SYS_AT91_MAIN_CLOCK      24000000 /* from 24 MHz crystal */
+
+/* SDRAM */
+#define CONFIG_SYS_SDRAM_BASE		0x60000000
+#define CONFIG_SYS_SDRAM_SIZE		0x20000000
+
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SYS_INIT_SP_ADDR		0x218000
+#else
+#define CONFIG_SYS_INIT_SP_ADDR \
+	(CONFIG_SYS_SDRAM_BASE + 16 * 1024 - GENERATED_GBL_DATA_SIZE)
+#endif
+
+#define CONFIG_SYS_LOAD_ADDR		0x62000000 /* load address */
+
+#undef CONFIG_BOOTCOMMAND
+#ifdef CONFIG_SD_BOOT
+/* u-boot env in sd/mmc card */
+#define FAT_ENV_INTERFACE	"mmc"
+#define FAT_ENV_DEVICE_AND_PART	"0"
+#define FAT_ENV_FILE		"uboot.env"
+/* bootstrap + u-boot + env in sd card */
+#define CONFIG_BOOTCOMMAND	"fatload mmc 0:1 0x61000000 at91-sama7g5ek.dtb; " \
+				"fatload mmc 0:1 0x62000000 zImage; " \
+				"bootz 0x62000000 - 0x61000000"
+#undef CONFIG_BOOTARGS
+#define CONFIG_BOOTARGS \
+	"console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait"
+#endif
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(4 * 1024 * 1024)
+
+#endif