board: at91: sama7g54_curiosity: Add initial board support

Add initial support for SAMA7G54 Curiosity board.

Hardware:
SoC: SAMA7G54D2G SiP 1000 MHz
DRAM: DDR3 256 MiB
PMIC: MCP16502
Debug: UART3
Flash: QSPI NOR 8 MiB, SLC NAND 512 MiB
M.2 slot for wireless
Mikrobus connectors x 2
SD-Card connectors x 1
USB 2.0 x 3

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>

5 files changed, 77 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index c5fd869272..8a8ac53e4f 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -286,6 +286,15 @@ config TARGET_SAMA7G5EK
        select BOARD_EARLY_INIT_F
        select BOARD_LATE_INIT
 
+config TARGET_SAMA7G54_CURIOSITY
+	bool "SAMA7G54 CURIOSITY board"
+	select SAMA7G5
+	select CPU_V7A
+	help
+	  The SAMA7G54 Curiosity embeds SAMA7G54D2G SiP (System in Package)
+	  with 2Gbit DDR3-SDRAM, 64Mbit QSPI nor-flash with MAC-address,
+	  4Gbit SLC nand-flash, MCP16502 PMIC, 2 x Mikrobus connectors,
+	  1 x SD-Card connector, 1 x M.2 slot, 3 x USB
 
 config TARGET_TAURUS
 	bool "Support taurus"
@@ -366,6 +375,7 @@ source "board/atmel/at91sam9x5ek/Kconfig"
 source "board/atmel/sam9x60ek/Kconfig"
 source "board/atmel/sam9x60_curiosity/Kconfig"
 source "board/atmel/sama7g5ek/Kconfig"
+source "board/atmel/sama7g54_curiosity/Kconfig"
 source "board/atmel/sama5d2_ptc_ek/Kconfig"
 source "board/atmel/sama5d2_xplained/Kconfig"
 source "board/atmel/sama5d27_som1_ek/Kconfig"
diff --git a/board/atmel/sama7g54_curiosity/Kconfig b/board/atmel/sama7g54_curiosity/Kconfig
new file mode 100644
index 0000000000..3e60d96712
--- /dev/null
+++ b/board/atmel/sama7g54_curiosity/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_SAMA7G54_CURIOSITY
+
+config SYS_BOARD
+	default "sama7g54_curiosity"
+
+config SYS_VENDOR
+	default "atmel"
+
+config SYS_SOC
+	default "at91"
+
+config SYS_CONFIG_NAME
+	default "sama7g54_curiosity"
+
+endif
diff --git a/board/atmel/sama7g54_curiosity/MAINTAINERS b/board/atmel/sama7g54_curiosity/MAINTAINERS
new file mode 100644
index 0000000000..b9f1a271c0
--- /dev/null
+++ b/board/atmel/sama7g54_curiosity/MAINTAINERS
@@ -0,0 +1,9 @@
+SAMA7G54 CURIOSITY BOARD
+M:     Mihai Sain <mihai.sain@microchip.com>
+S:     Maintained
+F:     board/atmel/sama7g54_curiosity.c
+F:     include/configs/sama7g54_curiosity.h
+F:     configs/sama7g54_curiosity_mmc_defconfig
+F:     configs/sama7g54_curiosity_nandflash_defconfig
+F:     configs/sama7g54_curiosity_qspiflash_defconfig
+F:     arch/arm/dts/at91-sama7g54_curiosity*
diff --git a/board/atmel/sama7g54_curiosity/Makefile b/board/atmel/sama7g54_curiosity/Makefile
new file mode 100644
index 0000000000..bc77655f35
--- /dev/null
+++ b/board/atmel/sama7g54_curiosity/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2024 Microchip Technology Inc. and its subsidiaries
+#
+# Author: Mihai Sain <mihai.sain@microchip.com>
+
+obj-y += sama7g54_curiosity.o
diff --git a/board/atmel/sama7g54_curiosity/sama7g54_curiosity.c b/board/atmel/sama7g54_curiosity/sama7g54_curiosity.c
new file mode 100644
index 0000000000..33cd0903d2
--- /dev/null
+++ b/board/atmel/sama7g54_curiosity/sama7g54_curiosity.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2024 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Mihai Sain <mihai.sain@microchip.com>
+ *
+ */
+
+#include <common.h>
+#include <init.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/atmel_pio4.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/sama7g5.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	// Address of boot parameters
+	gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
+
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	return fdtdec_setup_memory_banksize();
+}
+
+int dram_init(void)
+{
+	return fdtdec_setup_mem_size_base();
+}