From 9c834f57d630663ba686f576eb4fd1e67d627fc2 Mon Sep 17 00:00:00 2001
From: Gunar Schorcht <gunar@schorcht.net>
Date: Mon, 1 Aug 2022 17:51:43 +0200
Subject: [PATCH] cpu/esp32/bootloader: add ESP32-S3 support

---
 cpu/esp32/bootloader/Makefile                 |  1 -
 cpu/esp32/bootloader/sdkconfig.h              |  2 +
 .../bootloader/sdkconfig_default_esp32s3.h    | 46 +++++++++++++++++++
 3 files changed, 48 insertions(+), 1 deletion(-)
 create mode 100644 cpu/esp32/bootloader/sdkconfig_default_esp32s3.h

diff --git a/cpu/esp32/bootloader/Makefile b/cpu/esp32/bootloader/Makefile
index e45c87c439..ae579e1902 100644
--- a/cpu/esp32/bootloader/Makefile
+++ b/cpu/esp32/bootloader/Makefile
@@ -228,7 +228,6 @@ LINKFLAGS += \
   -Wno-frame-address \
   -o $(ESP_SDK_BOOTLOADER_DIR)/bootloader.elf \
   -Wl,--cref \
-  -Wl,--defsym=IDF_TARGET_ESP32=0 \
   -Wl,--gc-sections \
   -fno-lto \
   -fno-rtti \
diff --git a/cpu/esp32/bootloader/sdkconfig.h b/cpu/esp32/bootloader/sdkconfig.h
index f4b35a1805..329f6c6a5a 100644
--- a/cpu/esp32/bootloader/sdkconfig.h
+++ b/cpu/esp32/bootloader/sdkconfig.h
@@ -35,6 +35,8 @@
 #include "sdkconfig_default_esp32.h"
 #elif defined(CPU_FAM_ESP32C3)
 #include "sdkconfig_default_esp32c3.h"
+#elif defined(CPU_FAM_ESP32S3)
+#include "sdkconfig_default_esp32s3.h"
 #else
 #error "ESP32x family implementation missing"
 #endif
diff --git a/cpu/esp32/bootloader/sdkconfig_default_esp32s3.h b/cpu/esp32/bootloader/sdkconfig_default_esp32s3.h
new file mode 100644
index 0000000000..0d28f02651
--- /dev/null
+++ b/cpu/esp32/bootloader/sdkconfig_default_esp32s3.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2022 Gunar Schorcht
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     cpu_esp32
+ * @{
+ *
+ * @file
+ * @brief       Default SDK configuration for the ESP32-S3 SoC bootloader
+ *
+ * @author      Gunar Schorcht <gunar@schorcht.net>
+ */
+
+#ifndef SDKCONFIG_DEFAULT_ESP32S3_H
+#define SDKCONFIG_DEFAULT_ESP32S3_H
+
+#ifndef DOXYGEN
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef CONFIG_ESP32S3_DEFAULT_CPU_FREQ_MHZ
+#define CONFIG_ESP32S3_DEFAULT_CPU_FREQ_MHZ 160
+#endif
+
+#define CONFIG_ESP32S3_DEBUG_OCDAWARE 1
+
+#define CONFIG_BOOTLOADER_OFFSET_IN_FLASH 0x0
+#define CONFIG_EFUSE_MAX_BLK_LEN 256
+#define CONFIG_IDF_FIRMWARE_CHIP_ID 0x0009
+
+#define CONFIG_ESP_CONSOLE_SECONDARY_USB_SERIAL_JTAG 1
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* DOXYGEN */
+#endif /* SDKCONFIG_DEFAULT_ESP32S3_H */
+/** @} */