Add board specific functions for sam9x75 curiosity
Signed-off-by: Manikandan Muralidharan <manikanda...@microchip.com>
---
arch/arm/mach-at91/Kconfig | 8 +++
board/atmel/sam9x75_curiosity/Kconfig | 15 +++++
board/atmel/sam9x75_curiosity/MAINTAINERS | 6 ++
board/atmel/sam9x75_curiosity/Makefile | 7 ++
.../sam9x75_curiosity/sam9x75_curiosity.c | 66 +++++++++++++++++++
include/configs/sam9x75_curiosity.h | 23 +++++++
6 files changed, 125 insertions(+)
create mode 100644 board/atmel/sam9x75_curiosity/Kconfig
create mode 100644 board/atmel/sam9x75_curiosity/MAINTAINERS
create mode 100644 board/atmel/sam9x75_curiosity/Makefile
create mode 100644 board/atmel/sam9x75_curiosity/sam9x75_curiosity.c
create mode 100644 include/configs/sam9x75_curiosity.h
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 5429257875d..d21534ce883 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -158,6 +158,13 @@ config TARGET_SAM9X60_CURIOSITY
select BOARD_EARLY_INIT_F
select BOARD_LATE_INIT
+config TARGET_SAM9X75_CURIOSITY
+ bool "SAM9X75 CURIOSITY board"
+ select SAM9X7
+ select BOARD_EARLY_INIT_F
+ select BOARD_LATE_INIT
+ imply OF_UPSTREAM
+
config TARGET_SAMA5D2_PTC_EK
bool "SAMA5D2 PTC EK board"
select BOARD_EARLY_INIT_F
@@ -355,6 +362,7 @@ source "board/atmel/at91sam9rlek/Kconfig"
source "board/atmel/at91sam9x5ek/Kconfig"
source "board/atmel/sam9x60ek/Kconfig"
source "board/atmel/sam9x60_curiosity/Kconfig"
+source "board/atmel/sam9x75_curiosity/Kconfig"
source "board/atmel/sama7g5ek/Kconfig"
source "board/atmel/sama7g54_curiosity/Kconfig"
source "board/atmel/sama5d2_ptc_ek/Kconfig"
diff --git a/board/atmel/sam9x75_curiosity/Kconfig
b/board/atmel/sam9x75_curiosity/Kconfig
new file mode 100644
index 00000000000..8ea93a21aa3
--- /dev/null
+++ b/board/atmel/sam9x75_curiosity/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_SAM9X75_CURIOSITY
+
+config SYS_BOARD
+ default "sam9x75_curiosity"
+
+config SYS_VENDOR
+ default "atmel"
+
+config SYS_SOC
+ default "at91"
+
+config SYS_CONFIG_NAME
+ default "sam9x75_curiosity"
+
+endif
diff --git a/board/atmel/sam9x75_curiosity/MAINTAINERS
b/board/atmel/sam9x75_curiosity/MAINTAINERS
new file mode 100644
index 00000000000..a175053418f
--- /dev/null
+++ b/board/atmel/sam9x75_curiosity/MAINTAINERS
@@ -0,0 +1,6 @@
+SAM9X75 CURIOSITY BOARD
+M: Manikandan Muralidharan <manikanda...@microchip.com>
+S: Maintained
+F: board/atmel/sam9x75_curiosity/
+F: include/configs/sam9x75_curiosity.h
+F: arch/arm/dts/at91-sam9x75_curiosity-u-boot.dtsi
diff --git a/board/atmel/sam9x75_curiosity/Makefile
b/board/atmel/sam9x75_curiosity/Makefile
new file mode 100644
index 00000000000..1f36d613229
--- /dev/null
+++ b/board/atmel/sam9x75_curiosity/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2025 Microchip Technology Inc. and its subsidiaries
+#
+# Author: Manikandan Muralidharan <manikanda...@microchip.com>
+
+obj-y += sam9x75_curiosity.o
diff --git a/board/atmel/sam9x75_curiosity/sam9x75_curiosity.c
b/board/atmel/sam9x75_curiosity/sam9x75_curiosity.c
new file mode 100644
index 00000000000..4e7c5667e21
--- /dev/null
+++ b/board/atmel/sam9x75_curiosity/sam9x75_curiosity.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2025 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Manikandan Muralidharan <manikanda...@microchip.com>
+ */
+
+#include <debug_uart.h>
+#include <init.h>
+#include <asm/io.h>
+#include <asm/arch/at91sam9_smc.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_rstc.h>
+#include <asm/arch/at91_sfr.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/gpio.h>
+#include <asm/mach-types.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void at91_prepare_cpu_var(void);
+
+int board_late_init(void)
+{
+ at91_prepare_cpu_var();
+
+ return 0;
+}
+
+#if (IS_ENABLED(CONFIG_DEBUG_UART_BOARD_INIT))
+static void board_dbgu0_hw_init(void)
+{
+ at91_pio3_set_a_periph(AT91_PIO_PORTA, 26, 1); /* DRXD */
+ at91_pio3_set_a_periph(AT91_PIO_PORTA, 27, 1); /* DTXD */
+
+ at91_periph_clk_enable(ATMEL_ID_DBGU);
+}
+
+void board_debug_uart_init(void)
+{
+ board_dbgu0_hw_init();
+}
+#endif
+
+int board_early_init_f(void)
+{
+ return 0;
+}
+
+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();
+}
diff --git a/include/configs/sam9x75_curiosity.h
b/include/configs/sam9x75_curiosity.h
new file mode 100644
index 00000000000..62a855d9f01
--- /dev/null
+++ b/include/configs/sam9x75_curiosity.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Configuration settings for the SAM9X75 CURIOSITY board.
+ *
+ * Copyright (C) 2025 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Manikandan Muralidharan <manikanda...@microchip.com>
+ */
+
+#ifndef __CONFIG_H__
+#define __CONFIG_H__
+
+#define CFG_SYS_AT91_SLOW_CLOCK 32768
+#define CFG_SYS_AT91_MAIN_CLOCK 24000000 /* 24 MHz crystal */
+
+#define CFG_USART_BASE ATMEL_BASE_DBGU
+#define CFG_USART_ID 0 /* ignored in arm */
+
+/* SDRAM */
+#define CFG_SYS_SDRAM_BASE 0x20000000
+#define CFG_SYS_SDRAM_SIZE 0x10000000 /* 256 megs */
+
+#endif
--
2.25.1
