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>

arch/arm/dts/Makefile

@@ -889,6 +889,9 @@ dtb-$(CONFIG_TARGET_OMAP4_SDP4430) += \
 dtb-$(CONFIG_TARGET_OMAP5_UEVM) += \
 	omap5-uevm.dtb
 
+dtb-$(CONFIG_TARGET_SAMA7G5EK) += \
+	sama7g5ek.dtb
+
 dtb-$(CONFIG_TARGET_SAMA5D2_PTC_EK) += \
 	at91-sama5d2_ptc_ek.dtb
 

arch/arm/dts/sama7g5ek-u-boot.dtsi

@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * sama7g5ek-u-boot.dts - Device Tree file for SAMA7G5 SoC u-boot properties.
+ *
+ * Copyright (C) 2020 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Eugen Hristev <eugen.hristev@microchip.com>
+ * Author: Claudiu Beznea <claudiu.beznea@microchip.com>
+ *
+ */
+
+/ {
+	chosen {
+		u-boot,dm-pre-reloc;
+	};
+
+	ahb {
+		u-boot,dm-pre-reloc;
+
+		apb {
+			u-boot,dm-pre-reloc;
+		};
+	};
+};
+
+&uart0 {
+	u-boot,dm-pre-reloc;
+};
+
+&mck {
+	u-boot,dm-pre-reloc;
+};
+

arch/arm/dts/sama7g5ek.dts

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * sama7g5ek.dts - Device Tree file for SAMA7G5 EK
+ *		   SAMA7G5 Evaluation Kit
+ *
+ *  Copyright (c) 2020, Microchip Technology Inc.
+ *                2020, Eugen Hristev <eugen.hristev@microchip.com>
+ *		  2020, Claudiu Beznea <claudiu.beznea@microchip.com>
+ */
+/dts-v1/;
+#include "sama7g5.dtsi"
+#include "sama7g5-pinfunc.h"
+
+/ {
+	model = "Microchip SAMA7G5 Evaluation Kit";
+	compatible = "microchip,sama7g5ek", "microchip,sama7g54", "microchip,sama7g5", "microchip,sama7";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	ahb {
+
+		apb {
+			sdmmc1: sdio-host@e1208000 {
+				bus-width = <4>;
+				status = "okay";
+			};
+
+			uart0: serial@e1824200 {
+				status = "okay";
+			};
+		};
+	};
+};

arch/arm/mach-at91/Kconfig

@@ -265,6 +265,13 @@ config TARGET_CORVUS
 	select SUPPORT_SPL
 	imply CMD_DM
 
+config TARGET_SAMA7G5EK
+       bool "SAMA7G5 EK board"
+       select SAMA7G5
+       select BOARD_EARLY_INIT_F
+       select BOARD_LATE_INIT
+
+
 config TARGET_TAURUS
 	bool "Support taurus"
 	select AT91SAM9G20
@@ -327,6 +334,7 @@ source "board/atmel/at91sam9n12ek/Kconfig"
 source "board/atmel/at91sam9rlek/Kconfig"
 source "board/atmel/at91sam9x5ek/Kconfig"
 source "board/atmel/sam9x60ek/Kconfig"
+source "board/atmel/sama7g5ek/Kconfig"
 source "board/atmel/sama5d2_ptc_ek/Kconfig"
 source "board/atmel/sama5d2_xplained/Kconfig"
 source "board/atmel/sama5d27_som1_ek/Kconfig"

board/atmel/sama7g5ek/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_SAMA7G5EK
+
+config SYS_BOARD
+	default "sama7g5ek"
+
+config SYS_VENDOR
+	default "atmel"
+
+config SYS_SOC
+	default "at91"
+
+config SYS_CONFIG_NAME
+	default "sama7g5ek"
+
+endif

board/atmel/sama7g5ek/MAINTAINERS

@@ -0,0 +1,7 @@
+SAMA7G5 EK BOARD
+M:     Eugen Hristev <eugen.hristev@microchip.com>
+S:     Maintained
+F:     board/atmel/sama7g5ek.c
+F:     include/configs/sama7g5ek.h
+F:     configs/sama7g5ek_mmc1_defconfig
+

board/atmel/sama7g5ek/Makefile

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier:     GPL-2.0+
+#
+# Copyright (C) 2020 Microchip Technology Inc.
+#                   Eugen Hristev <eugen.hristev@microchip.com>
+#
+
+obj-y += sama7g5ek.o

board/atmel/sama7g5ek/sama7g5ek.c

@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 Microchip Technology, Inc.
+ *		      Eugen Hristev <eugen.hristev@microchip.com>
+ */
+
+#include <common.h>
+#include <debug_uart.h>
+#include <init.h>
+#include <asm/io.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/atmel_pio4.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/sama7g5.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_late_init(void)
+{
+	return 0;
+}
+
+#if (IS_ENABLED(CONFIG_DEBUG_UART_BOARD_INIT))
+static void board_uart0_hw_init(void)
+{
+	/* FLEXCOM3 IO0 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTD, 17, ATMEL_PIO_PUEN_MASK);
+	/* FLEXCOM3 IO1 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTD, 16, 0);
+
+	at91_periph_clk_enable(ATMEL_ID_FLEXCOM3);
+}
+
+void board_debug_uart_init(void)
+{
+	board_uart0_hw_init();
+}
+#endif
+
+int board_early_init_f(void)
+{
+#if (IS_ENABLED(CONFIG_DEBUG_UART))
+	debug_uart_init();
+#endif
+	return 0;
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+				    CONFIG_SYS_SDRAM_SIZE);
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	return 0;
+}
+

configs/sama7g5ek_mmc1_defconfig

@@ -0,0 +1,59 @@
+CONFIG_ARM=y
+CONFIG_ARCH_AT91=y
+CONFIG_SYS_TEXT_BASE=0x66f00000
+CONFIG_TARGET_SAMA7G5EK=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SIZE=0x4000
+CONFIG_DM_GPIO=y
+CONFIG_DEBUG_UART_BOARD_INIT=y
+CONFIG_DEBUG_UART_BASE=0xe1824200
+CONFIG_DEBUG_UART_CLOCK=200000000
+CONFIG_DEFAULT_DEVICE_TREE="sama7g5ek"
+CONFIG_DEBUG_UART=y
+CONFIG_ENV_VARS_UBOOT_CONFIG=y
+CONFIG_FIT=y
+CONFIG_SD_BOOT=y
+CONFIG_USE_BOOTARGS=y
+CONFIG_MISC_INIT_R=y
+CONFIG_HUSH_PARSER=y
+# CONFIG_AUTOBOOT is not set
+CONFIG_CMD_BOOTZ=y
+# CONFIG_CMD_IMI is not set
+CONFIG_CMD_MD5SUM=y
+CONFIG_CMD_MEMTEST=y
+CONFIG_SYS_MEMTEST_START=0x60000000
+CONFIG_SYS_MEMTEST_END=0x70000000
+CONFIG_CMD_STRINGS=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_FAT=y
+CONFIG_OF_CONTROL=y
+CONFIG_ENV_IS_IN_FAT=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_DM=y
+CONFIG_CLK=y
+CONFIG_CLK_AT91=y
+CONFIG_AT91_UTMI=y
+CONFIG_AT91_GENERIC_CLK=y
+CONFIG_ATMEL_PIO4=y
+CONFIG_DM_I2C=y
+CONFIG_DM_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_ATMEL=y
+CONFIG_DM_ETH=y
+CONFIG_MACB=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_AT91PIO4=y
+# CONFIG_RAM_ROCKCHIP_DEBUG is not set
+CONFIG_DM_SERIAL=y
+CONFIG_DEBUG_UART_ANNOUNCE=y
+CONFIG_ATMEL_USART=y
+CONFIG_TIMER=y
+CONFIG_OF_LIBFDT_OVERLAY=y
+# CONFIG_EFI_LOADER_HII is not set

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