Merge tag 'u-boot-at91-2024.01-b' of https://source.denx.de/u-boot/custodians/u-boot-at91

Second set of u-boot-at91 features for the 2024.01 cycle

This feature set a new board named Conclusive KSTR sama5d27 with some
small prerequisites patches.

3 files changed, 38 insertions, 0 deletions

diff --git a/include/configs/kstr-sama5d27.h b/include/configs/kstr-sama5d27.h
new file mode 100644
index 00000000000..772a073ba20
--- /dev/null
+++ b/include/configs/kstr-sama5d27.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2021-2023 Conclusive Engineering Sp. z o. o.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include "at91-sama5_common.h"
+
+/* SDRAM */
+#define CFG_SYS_SDRAM_BASE           0x20000000
+#define CFG_SYS_SDRAM_SIZE           0x10000000
+
+#endif
diff --git a/include/event.h b/include/event.h
index c5646b713ad..a8f046da3c3 100644
--- a/include/event.h
+++ b/include/event.h
@@ -105,6 +105,15 @@ enum event_t {
 	EVT_FSP_INIT_F,
 
 	/**
+	 * @EVT_SETTINGS_R:
+	 * This event is triggered post-relocation and before console init.
+	 * This gives an option to perform any platform-dependent setup, which
+	 * needs to take place before show_board_info() (e.g. readout of EEPROM
+	 * stored settings).
+	 */
+	EVT_SETTINGS_R,
+
+	/**
 	 * @EVT_LAST_STAGE_INIT:
 	 * This event is triggered just before jumping to the main loop.
 	 * Some boards need to perform initialisation immediately before control
diff --git a/include/init.h b/include/init.h
index 4e7fe26c200..d57a24fd00d 100644
--- a/include/init.h
+++ b/include/init.h
@@ -271,6 +271,20 @@ void board_init_r(struct global_data *id, ulong dest_addr)
 
 int cpu_init_r(void);
 int mac_read_from_eeprom(void);
+
+/**
+ *  serial_read_from_eeprom - read the serial number from EEPROM
+ *
+ *  This function reads the serial number from the EEPROM and sets the
+ *  appropriate environment variable.
+ *
+ *  The environment variable is only set if it has not been set
+ *  already. This ensures that any user-saved variables are never
+ *  overwritten.
+ *
+ *  This function must be called after relocation.
+ */
+int serial_read_from_eeprom(int devnum);
 int set_cpu_clk_info(void);
 int update_flash_size(int flash_size);
 int arch_early_init_r(void);