Merge tag 'u-boot-atmel-2021.04-a' of https://gitlab.denx.de/u-boot/custodians/u-boot-atmel

First set of u-boot-atmel features for 2021.04 cycle

This feature set includes the new board SAMA7G5 EK, the new evaluation
kit for Microchip AT91 SAMA7G5 SoC . The current board support includes
two configurations for booting from eMMC (SDMMC0), SD-Card (SDMMC1), and
support for two Ethernet interfaces.

include/configs/sama7g5ek.h

@@ -0,0 +1,45 @@
+/* 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 + CONFIG_SYS_MALLOC_F_LEN - \
+	 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 */
+
+/* bootstrap + u-boot + env in sd card */
+#define CONFIG_BOOTCOMMAND	"fatload mmc " CONFIG_ENV_FAT_DEVICE_AND_PART " 0x61000000 at91-sama7g5ek.dtb; " \
+				"fatload mmc " CONFIG_ENV_FAT_DEVICE_AND_PART " 0x62000000 zImage; " \
+				"bootz 0x62000000 - 0x61000000"
+#endif
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(4 * 1024 * 1024)
+
+#define CONFIG_ARP_TIMEOUT		200
+#define CONFIG_NET_RETRY_COUNT		50
+
+#endif