diff --git a/cpu/esp32/esp-idf/Kconfig b/cpu/esp32/esp-idf/Kconfig
new file mode 100644
index 0000000000..d74711087f
--- /dev/null
+++ b/cpu/esp32/esp-idf/Kconfig
@@ -0,0 +1,29 @@
+# Copyright (c) 2021 HAW Hamburg
+#               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.
+#
+
+config MODULE_ESP_IDF
+    bool
+    depends on TEST_KCONFIG
+    depends on HAS_ARCH_ESP32
+    default y
+    select MODULE_ESP_IDF_COMMON
+    select MODULE_ESP_IDF_SPI_FLASH if MODULE_MTD
+    help
+      Espressif IoT Development Framework.
+
+rsource "common/Kconfig"
+rsource "efuse/Kconfig"
+rsource "eth/Kconfig"
+rsource "event/Kconfig"
+rsource "gpio/Kconfig"
+rsource "heap/Kconfig"
+rsource "nvs_flash/Kconfig"
+rsource "spi_flash/Kconfig"
+rsource "spi_ram/Kconfig"
+rsource "wifi/Kconfig"
+rsource "wpa_supplicant/Kconfig"
diff --git a/cpu/esp32/esp-idf/Makefile b/cpu/esp32/esp-idf/Makefile
new file mode 100644
index 0000000000..89fee49322
--- /dev/null
+++ b/cpu/esp32/esp-idf/Makefile
@@ -0,0 +1,47 @@
+MODULE=esp_idf
+
+# Add a list of subdirectories, that should also be built:
+
+DIRS += common
+
+ifneq (,$(filter esp_idf_efuse,$(USEMODULE)))
+  DIRS += efuse
+endif
+
+ifneq (,$(filter esp_idf_eth,$(USEMODULE)))
+  DIRS += eth
+endif
+
+ifneq (,$(filter esp_idf_event,$(USEMODULE)))
+  DIRS += event
+endif
+
+ifneq (,$(filter esp_idf_gpio,$(USEMODULE)))
+  DIRS += gpio
+endif
+
+ifneq (,$(filter esp_idf_heap,$(USEMODULE)))
+  DIRS += heap
+endif
+
+ifneq (,$(filter esp_idf_nvs_flash,$(USEMODULE)))
+  DIRS += nvs_flash
+endif
+
+ifneq (,$(filter esp_idf_spi_flash,$(USEMODULE)))
+  DIRS += spi_flash
+endif
+
+ifneq (,$(filter esp_idf_spi_ram,$(USEMODULE)))
+  DIRS += spi_ram
+endif
+
+ifneq (,$(filter esp_idf_wifi,$(USEMODULE)))
+  DIRS += wifi
+endif
+
+ifneq (,$(filter esp_idf_wpa_supplicant,$(USEMODULE)))
+  DIRS += wpa_supplicant
+endif
+
+include $(RIOTBASE)/Makefile.base
diff --git a/cpu/esp32/esp-idf/common/Kconfig b/cpu/esp32/esp-idf/common/Kconfig
new file mode 100644
index 0000000000..a8c0a73959
--- /dev/null
+++ b/cpu/esp32/esp-idf/common/Kconfig
@@ -0,0 +1,14 @@
+# Copyright (c) 2022 Gunar Schorcht
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+#
+
+config MODULE_ESP_IDF_COMMON
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    help
+        Common ESP-IDF code required for the RIOT port regardless of
+        additional modules.
diff --git a/cpu/esp32/esp-idf/common/Makefile b/cpu/esp32/esp-idf/common/Makefile
new file mode 100644
index 0000000000..80e3c7a74d
--- /dev/null
+++ b/cpu/esp32/esp-idf/common/Makefile
@@ -0,0 +1,36 @@
+MODULE = esp_idf_common
+
+# source files required from ESP-IDF in any case, regardless of additional modules
+ESP32_SDK_SRC = \
+  components/driver/periph_ctrl.c \
+  components/esp_hw_support/cpu_util.c \
+  components/esp_hw_support/sleep_modes.c \
+  components/esp_hw_support/port/$(CPU)/rtc_sleep.c \
+  components/esp_hw_support/esp_clk.c \
+  components/esp_hw_support/port/$(CPU)/rtc_clk.c \
+  components/esp_hw_support/port/$(CPU)/rtc_clk_init.c \
+  components/esp_hw_support/port/$(CPU)/rtc_init.c \
+  components/esp_hw_support/port/$(CPU)/rtc_time.c \
+  components/esp_hw_support/port/$(CPU)/rtc_wdt.c \
+  components/esp_hw_support/regi2c_ctrl.c \
+  components/esp_pm/pm_impl.c \
+  components/esp_system/esp_err.c \
+  components/esp_system/esp_system.c \
+  components/esp_system/port/soc/$(CPU)/clk.c \
+  components/esp_system/port/soc/$(CPU)/reset_reason.c \
+  components/esp_system/system_time.c \
+  components/hal/mpu_hal.c \
+  components/hal/wdt_hal_iram.c \
+  components/newlib/port/esp_time_impl.c \
+  components/soc/$(CPU)/rtc_io_periph.c \
+  components/spi_flash/cache_utils.c \
+  components/esp_timer/src/esp_timer.c \
+  components/esp_timer/src/esp_timer_impl_frc_legacy.c \
+  #
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+include ../esp_idf.mk
+include ../esp_idf_cflags.mk
diff --git a/cpu/esp32/esp-idf/efuse/Kconfig b/cpu/esp32/esp-idf/efuse/Kconfig
new file mode 100644
index 0000000000..0e36c16baa
--- /dev/null
+++ b/cpu/esp32/esp-idf/efuse/Kconfig
@@ -0,0 +1,15 @@
+# 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.
+#
+
+config MODULE_ESP_IDF_EFUSE
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    help
+        ESP-IDF code for accessing eFuse bits of ESP32 SoCs, as required for
+        accessing the MAC addresses of network devices or accessing the
+        external SPI RAM.
diff --git a/cpu/esp32/esp-idf/efuse/Makefile b/cpu/esp32/esp-idf/efuse/Makefile
new file mode 100644
index 0000000000..92a0d1d617
--- /dev/null
+++ b/cpu/esp32/esp-idf/efuse/Makefile
@@ -0,0 +1,29 @@
+MODULE = esp_idf_efuse
+
+# source files to be compiled for this module
+ESP32_SDK_SRC = \
+  components/efuse/$(CPU)/esp_efuse_fields.c \
+  components/efuse/$(CPU)/esp_efuse_table.c \
+  components/efuse/$(CPU)/esp_efuse_utility.c \
+  components/efuse/src/esp_efuse_api.c \
+  components/efuse/src/esp_efuse_utility.c \
+  components/esp_hw_support/mac_addr.c \
+  #
+
+ifneq (,$(filter esp32,$(CPU)))
+  ESP32_SDK_SRC += components/efuse/src/esp_efuse_api_key_esp32.c
+else
+  ESP32_SDK_SRC += components/efuse/src/esp_efuse_api_key_esp32xx.c
+endif
+
+# additional include pathes required by this module
+INCLUDES += -I$(ESP32_SDK_DIR)/components/efuse/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/efuse/private_include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/efuse/$(CPU)/private_include
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+include ../esp_idf.mk
+include ../esp_idf_cflags.mk
diff --git a/cpu/esp32/esp-idf/esp_idf.mk b/cpu/esp32/esp-idf/esp_idf.mk
new file mode 100644
index 0000000000..9f32cf23c6
--- /dev/null
+++ b/cpu/esp32/esp-idf/esp_idf.mk
@@ -0,0 +1,73 @@
+# common definitions for all ESP-IDF modules
+
+INCLUDES += -I$(ESP32_SDK_DIR)/components/bootloader_support/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/driver/esp32/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/driver/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/efuse/esp32/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_common/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_hw_support/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_hw_support/include/soc
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_hw_support/port/esp32
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_hw_support/port/esp32/private_include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_ipc/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_pm/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_rom/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_rom/include/esp32
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_system/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_system/port/public_compat
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_timer/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_timer/private_include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/hal/esp32/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/hal/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/hal/platform_port/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/heap/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/log/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/newlib/priv_include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/soc/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/soc/esp32/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/spi_flash/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/xtensa/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/xtensa/esp32/include
+
+SRC := $(addprefix $(ESP32_SDK_DIR)/,$(ESP32_SDK_SRC))
+SRCXX := $(addprefix $(ESP32_SDK_DIR)/,$(ESP32_SDK_SRCXX))
+
+OBJC_LTO    := $(ESP32_SDK_SRC:%.c=$(ESP32_SDK_BIN)/%.o)
+OBJC_NOLTO  := $(ESP32_SDK_SRC_NOLTO:%.c=$(ESP32_SDK_BIN)/%.o)
+OBJC        := $(OBJC_NOLTO) $(OBJC_LTO)
+OBJCXX      := $(ESP32_SDK_SRCXX:%.$(SRCXXEXT)=$(ESP32_SDK_BIN)/%.o)
+ASMOBJ      := $(ESP32_SDK_ASMSRC:%.s=$(ESP32_SDK_BIN)/%.o)
+
+OBJ := $(OBJC) $(OBJCXX) $(ASMOBJ) $(ASSMOBJ) $(GENOBJC)
+DEP := $(OBJC:.o=.d) $(OBJCXX:.o=.d) $(ASSMOBJ:.o=.d)
+
+$(MODULE).module compile-commands $(OBJ): | $(BINDIR)/$(MODULE)/
+
+$(MODULE).module: $(OBJ) $(ESP32_LD_DST) \
+    $(if $(OBJECTS_TO_REMOVE),$(MODULE).cleanup) | $(DIRS:%=ALL--%)
+
+$(OBJC): $(BINDIR)/$(MODULE)/%.o: $(ESP32_SDK_DIR)/%.c $(OBJ_DEPS) \
+            | $(if $(SHOULD_RUN_KCONFIG),$(KCONFIG_GENERATED_AUTOCONF_HEADER_C))
+	$(Q)mkdir -p $(dir $@)
+	$(Q)$(CCACHE) $(CC) \
+		-DRIOT_FILE_RELATIVE=\"$(patsubst $(RIOTBASE)/%,%,$(abspath $<))\" \
+		-DRIOT_FILE_NOPATH=\"$(notdir $<)\" \
+		$(CFLAGS) $(INCLUDES) -MQ '$@' -MD -MP -c $(abspath $<) -o $@
+ifneq (,$(SHOULD_RUN_KCONFIG))
+	$(Q)$(FIXDEP) $(@:.o=.d) $@ $(KCONFIG_SYNC_DIR) > $(@:.o=.tmp)
+	$(Q)mv $(@:.o=.tmp) $(@:.o=.d)
+endif
+
+$(OBJCXX): $(BINDIR)/$(MODULE)/%.o: $(ESP32_SDK_DIR)/%.$(SRCXXEXT) $(OBJ_DEPS) \
+            | $(if $(SHOULD_RUN_KCONFIG),$(KCONFIG_GENERATED_AUTOCONF_HEADER_C))
+	$(Q)mkdir -p $(dir $@)
+	$(Q)$(CCACHE) $(CXX) \
+		-DRIOT_FILE_RELATIVE=\"$(patsubst $(RIOTBASE)/%,%,$(abspath $<))\" \
+		-DRIOT_FILE_NOPATH=\"$(notdir $<)\" \
+		$(CXXFLAGS) $(CXXINCLUDES) $(INCLUDES) -MQ '$@' -MD -MP -c $(abspath $<) -o $@
+ifneq (,$(SHOULD_RUN_KCONFIG))
+	$(Q)$(FIXDEP) $(@:.o=.d) $@ $(KCONFIG_SYNC_DIR) > $(@:.o=.tmp)
+	$(Q)mv $(@:.o=.tmp) $(@:.o=.d)
+endif
+
+-include $(DEP)
diff --git a/cpu/esp32/esp-idf/esp_idf_cflags.mk b/cpu/esp32/esp-idf/esp_idf_cflags.mk
new file mode 100644
index 0000000000..74e1006644
--- /dev/null
+++ b/cpu/esp32/esp-idf/esp_idf_cflags.mk
@@ -0,0 +1,26 @@
+# common definitions for all ESP-IDF modules
+
+# shortcuts used by ESP-IDF
+CFLAGS += -Dasm=__asm
+CFLAGS += -Dtypeof=__typeof__
+
+# required for esp_wifi (components/spi_flash/esp32/spi_flash_rom_patch.c)
+# required for esp_idf_heap (components/heap/heap_caps_init.c)
+# required for esp_idf_wpa_supplicant
+CFLAGS += -Wno-sign-compare
+
+# required by esp_idf_heap (components/heap/heap_caps.c)
+# required for esp_idf_wpa_supplicant
+CFLAGS += -Wno-implicit-function-declaration
+
+# required for esp_wifi (components/esp_event/esp_event.c)
+CFLAGS += -Wno-old-style-declaration
+
+# required for esp-wifi (components/efuse/esp32/esp_efuse_utility.c)
+# required for esp_idf_heap (components/heap/multi_heap.c)
+# required for esp_idf_wpa_supplicant
+CFLAGS += -Wno-old-style-definition
+
+# vendor code contains casts that increase alignment requirements. Let's hope
+# those are false positives.
+CFLAGS += -Wno-cast-align
diff --git a/cpu/esp32/esp-idf/esp_idf_support.c b/cpu/esp32/esp-idf/esp_idf_support.c
new file mode 100644
index 0000000000..44747cefa6
--- /dev/null
+++ b/cpu/esp32/esp-idf/esp_idf_support.c
@@ -0,0 +1,176 @@
+/*
+ * 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       Functions required for ESP-IDF compatibility
+ *
+ * @author      Gunar Schorcht <gunar@schorcht.net>
+ *
+ * @}
+ */
+
+#include <string.h>
+
+#include "esp_common.h"
+#include "log.h"
+#include "syscalls.h"
+
+#include "esp_attr.h"
+#include "esp_log.h"
+
+#define ENABLE_DEBUG  0
+#include "debug.h"
+
+#if IS_USED(MODULE_ESP_WIFI_ANY) || IS_USED(MODULE_ESP_ETH)
+#include "esp_event_base.h"
+
+ESP_EVENT_DEFINE_BASE(IP_EVENT);
+#endif
+
+/* Global variables required by ESP-IDF */
+uint8_t *g_wpa_anonymous_identity;
+int g_wpa_anonymous_identity_len;
+
+uint8_t *g_wpa_username;
+int g_wpa_username_len;
+
+uint8_t *g_wpa_password;
+int g_wpa_password_len;
+
+uint8_t *g_wpa_new_password;
+int g_wpa_new_password_len;
+
+const uint8_t *g_wpa_client_cert;
+int g_wpa_client_cert_len;
+
+const uint8_t *g_wpa_private_key;
+int g_wpa_private_key_len;
+
+const uint8_t *g_wpa_private_key_passwd;
+int g_wpa_private_key_passwd_len;
+
+const uint8_t *g_wpa_ca_cert;
+int g_wpa_ca_cert_len;
+
+char *g_wpa_ttls_phase2_type;
+bool g_wpa_suiteb_certification;
+
+/*
+ * provided by: /path/to/esp-idf/components/log/log_freertos.c
+ */
+uint32_t IRAM_ATTR esp_log_timestamp(void)
+{
+    return system_get_time() / USEC_PER_MSEC;
+}
+
+typedef struct {
+    const char *tag;
+    unsigned level;
+} esp_log_level_entry_t;
+
+static esp_log_level_entry_t _log_levels[] = {
+    { .tag = "wifi", .level = LOG_INFO },
+    { .tag = "*", .level = LOG_DEBUG },
+};
+
+static char _printf_buf[PRINTF_BUFSIZ];
+
+/*
+ * provided by: /path/to/esp-idf/component/log/log.c
+ */
+void IRAM_ATTR esp_log_write(esp_log_level_t level,
+                             const char* tag, const char* format, ...)
+{
+    va_list list;
+    va_start(list, format);
+    esp_log_writev(level, tag, format, list);
+    va_end(list);
+}
+
+/*
+ * provided by: /path/to/esp-idf/component/log/log.c
+ */
+void IRAM_ATTR esp_log_writev(esp_log_level_t level,
+                              const char *tag,
+                              const char *format,
+                              va_list args)
+{
+    /*
+     * We use the log level set for the given tag instead of using
+     * the given log level.
+     */
+    esp_log_level_t act_level = LOG_DEBUG;
+    size_t i;
+    for (i = 0; i < ARRAY_SIZE(_log_levels); i++) {
+        if (strcmp(tag, _log_levels[i].tag) == 0) {
+            act_level = _log_levels[i].level;
+            break;
+        }
+    }
+
+    /* If we didn't find an entry for the tag, we use the log level for "*" */
+    if (i == ARRAY_SIZE(_log_levels)) {
+        act_level = _log_levels[ARRAY_SIZE(_log_levels)-1].level;
+    }
+
+    /* Return if the log output has not the required level */
+    if ((unsigned)act_level > CONFIG_LOG_DEFAULT_LEVEL) {
+        return;
+    }
+
+    /*
+     * The format of log output from ESP SDK libraries is "X (s) t: message\n"
+     * where X is the log level, d the system time in milliseconds and t the
+     * tag. To be able to enable these additional information by module
+     * `esp_log_tagged`, we have to separate these information from the
+     * message here.
+     */
+    const char* msg = (strchr (format, ':') + 2);
+
+    va_list arglist;
+    va_copy(arglist, args);
+
+    /* remove time and tag argument from argument list */
+    va_arg(arglist, unsigned);
+    va_arg(arglist, const char*);
+    vsnprintf(_printf_buf, PRINTF_BUFSIZ, msg, arglist);
+    va_end(arglist);
+
+    switch (act_level) {
+        case LOG_NONE   : return;
+        case LOG_ERROR  : LOG_TAG_ERROR  (tag, "%s", _printf_buf); break;
+        case LOG_WARNING: LOG_TAG_WARNING(tag, "%s", _printf_buf); break;
+        case LOG_INFO   : LOG_TAG_INFO   (tag, "%s", _printf_buf); break;
+        case LOG_DEBUG  : LOG_TAG_DEBUG  (tag, "%s", _printf_buf); break;
+        case LOG_ALL    : LOG_TAG_ALL    (tag, "%s", _printf_buf); break;
+    }
+}
+
+/*
+ * provided by: /path/to/esp-idf/component/log/log.c
+ */
+void esp_log_level_set(const char* tag, esp_log_level_t level)
+{
+    size_t i;
+    for (i = 0; i < ARRAY_SIZE(_log_levels); i++) {
+        if (strcmp(tag, _log_levels[i].tag) == 0) {
+            break;
+        }
+    }
+
+    if (i == ARRAY_SIZE(_log_levels)) {
+        LOG_DEBUG("Tag for setting log level not found\n");
+        return;
+    }
+
+    _log_levels[i].level = level;
+}
diff --git a/cpu/esp32/esp-idf/eth/Kconfig b/cpu/esp32/esp-idf/eth/Kconfig
new file mode 100644
index 0000000000..90a571c963
--- /dev/null
+++ b/cpu/esp32/esp-idf/eth/Kconfig
@@ -0,0 +1,14 @@
+# Copyright (c) 2021 HAW Hamburg
+#               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.
+#
+
+config MODULE_ESP_IDF_ETH
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    help
+        ESP-IDF code required for the Ethernet network device.
diff --git a/cpu/esp32/esp-idf/eth/Makefile b/cpu/esp32/esp-idf/eth/Makefile
new file mode 100644
index 0000000000..1eeb9aa80b
--- /dev/null
+++ b/cpu/esp32/esp-idf/eth/Makefile
@@ -0,0 +1,22 @@
+MODULE = esp_idf_eth
+
+# source files to be compiled for this module
+ESP32_SDK_SRC = \
+  components/esp_eth/src/esp_eth.c \
+  components/esp_eth/src/esp_eth_mac_esp.c  \
+  components/esp_eth/src/esp_eth_netif_glue.c  \
+  components/esp_eth/src/esp_eth_phy.c  \
+  components/esp_eth/src/esp_eth_phy_dp83848.c  \
+  components/esp_eth/src/esp_eth_phy_ip101.c  \
+  components/esp_eth/src/esp_eth_phy_ksz80xx.c  \
+  components/esp_eth/src/esp_eth_phy_lan87xx.c  \
+  components/esp_eth/src/esp_eth_phy_rtl8201.c \
+  components/hal/emac_hal.c \
+  #
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+include ../esp_idf.mk
+include ../esp_idf_cflags.mk
diff --git a/cpu/esp32/esp-idf/event/Kconfig b/cpu/esp32/esp-idf/event/Kconfig
new file mode 100644
index 0000000000..8ff5523d7f
--- /dev/null
+++ b/cpu/esp32/esp-idf/event/Kconfig
@@ -0,0 +1,13 @@
+# 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.
+#
+
+config MODULE_ESP_IDF_EVENT
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    help
+        ESP-IDF code for event handling as required for network devices.
diff --git a/cpu/esp32/esp-idf/event/Makefile b/cpu/esp32/esp-idf/event/Makefile
new file mode 100644
index 0000000000..22cd77e8a4
--- /dev/null
+++ b/cpu/esp32/esp-idf/event/Makefile
@@ -0,0 +1,18 @@
+MODULE = esp_idf_event
+
+# source files to be compiled for this module
+ESP32_SDK_SRC = \
+  components/esp_event/default_event_loop.c \
+  components/esp_event/esp_event.c \
+  #
+
+# additional include pathes required by this module
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_event/private_include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_event/include
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+include ../esp_idf.mk
+include ../esp_idf_cflags.mk
diff --git a/cpu/esp32/esp-idf/gpio/Kconfig b/cpu/esp32/esp-idf/gpio/Kconfig
new file mode 100644
index 0000000000..89cbea1320
--- /dev/null
+++ b/cpu/esp32/esp-idf/gpio/Kconfig
@@ -0,0 +1,13 @@
+# 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.
+#
+
+config MODULE_ESP_IDF_GPIO
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    help
+        ESP-IDF code for peripheral GPIO.
diff --git a/cpu/esp32/esp-idf/gpio/Makefile b/cpu/esp32/esp-idf/gpio/Makefile
new file mode 100644
index 0000000000..d0b5d0a233
--- /dev/null
+++ b/cpu/esp32/esp-idf/gpio/Makefile
@@ -0,0 +1,14 @@
+MODULE = esp_idf_gpio
+
+# source files to be compiled for this module
+ESP32_SDK_SRC = \
+  components/driver/gpio.c \
+  components/soc/$(CPU)/gpio_periph.c \
+  #
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+include ../esp_idf.mk
+include ../esp_idf_cflags.mk
diff --git a/cpu/esp32/esp-idf/heap/Kconfig b/cpu/esp32/esp-idf/heap/Kconfig
new file mode 100644
index 0000000000..d67264f68a
--- /dev/null
+++ b/cpu/esp32/esp-idf/heap/Kconfig
@@ -0,0 +1,16 @@
+# Copyright (c) 2021 HAW Hamburg
+#               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.
+#
+
+config MODULE_ESP_IDF_HEAP
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    select PACKAGE_TLSF
+    help
+        ESP-IDF heap library. This library is required if external SPI RAM
+        or the WiFi interface is used.
diff --git a/cpu/esp32/esp-idf/heap/Makefile b/cpu/esp32/esp-idf/heap/Makefile
new file mode 100644
index 0000000000..b76e013e2a
--- /dev/null
+++ b/cpu/esp32/esp-idf/heap/Makefile
@@ -0,0 +1,34 @@
+MODULE = esp_idf_heap
+
+# source files to be compiled for this module
+ESP32_SDK_SRC = \
+  components/heap/heap_caps.c \
+  components/heap/heap_caps_init.c \
+  components/heap/heap_task_info.c \
+  components/heap/heap_trace_standalone.c \
+  components/heap/multi_heap.c \
+  components/heap/multi_heap_poisoning.c \
+  components/heap/port/$(CPU)/memory_layout.c \
+  components/heap/port/memory_layout_utils.c \
+  #
+
+# We don't use ESP-IDF TLSF at all to prevent colissions. It doesn't seem to do
+# something special with the exception of heap poisoning which isn't configured
+# by default.
+# ifeq (,$(filter tlsf,$(USEPKG)))
+#   ESP32_SDK_SRC += components/heap/heap_tlsf.c
+# endif
+
+# additional include pathes required by this module
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_rom/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_system/include
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+include ../esp_idf.mk
+include ../esp_idf_cflags.mk
+
+# set by default
+CFLAGS += -DMULTI_HEAP_FREERTOS
diff --git a/cpu/esp32/esp-idf/include/log/esp_log.h b/cpu/esp32/esp-idf/include/log/esp_log.h
new file mode 100644
index 0000000000..f673b932f9
--- /dev/null
+++ b/cpu/esp32/esp-idf/include/log/esp_log.h
@@ -0,0 +1,72 @@
+/*
+ * 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       Wrapper for source code compatibility of ESP-IDF log with RIOT's log module
+ *
+ * @author      Gunar Schorcht <gunar@schorcht.net>
+ * @}
+ */
+
+#ifndef LOG_ESP_LOG_H
+#define LOG_ESP_LOG_H
+
+#ifndef DOXYGEN     /* Hide implementation details from doxygen */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include_next "esp_log.h"
+
+#if defined(RIOT_VERSION)
+
+#include "esp_common.h"
+
+#ifndef LOG_LOCAL_LEVEL
+#define LOG_LOCAL_LEVEL LOG_LEVEL
+#endif
+
+#define ESP_LOG_LEVEL(level, tag, format, ...) \
+            do { \
+                if ((esp_log_level_t)level==ESP_LOG_ERROR ) { \
+                    LOG_TAG(level, E, tag, format, ##__VA_ARGS__);  \
+                } \
+                else if ((esp_log_level_t)level==ESP_LOG_WARN ) { \
+                    LOG_TAG(level, W, tag, format, ##__VA_ARGS__);  \
+                } \
+                else if ((esp_log_level_t)level==ESP_LOG_INFO ) { \
+                    LOG_TAG(level, I, tag, format, ##__VA_ARGS__);  \
+                } \
+                else if ((esp_log_level_t)level==ESP_LOG_DEBUG ) { \
+                    LOG_TAG(level, D, tag, format, ##__VA_ARGS__);  \
+                } \
+                else if ((esp_log_level_t)level==ESP_LOG_VERBOSE ) { \
+                    LOG_TAG(level, V, tag, format, ##__VA_ARGS__);  \
+                } \
+            } while (0)
+
+#define ESP_LOG_LEVEL_LOCAL(level, tag, format, ...) \
+            do {               \
+                if ( LOG_LOCAL_LEVEL >= level ) { \
+                    ESP_LOG_LEVEL(level, tag, format, ##__VA_ARGS__); \
+                } \
+            } while (0)
+
+#endif /* defined(RIOT_VERSION) */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* DOXYGEN */
+#endif /* LOG_ESP_LOG_H */
diff --git a/cpu/esp32/include/sdk_conf.h b/cpu/esp32/esp-idf/include/sdkconfig.h
similarity index 58%
rename from cpu/esp32/include/sdk_conf.h
rename to cpu/esp32/esp-idf/include/sdkconfig.h
index 29c8c6d6d5..89acb45605 100644
--- a/cpu/esp32/include/sdk_conf.h
+++ b/cpu/esp32/esp-idf/include/sdkconfig.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 Gunar Schorcht
+ * 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
@@ -19,8 +19,8 @@
  * @author      Gunar Schorcht <gunar@schorcht.net>
  */
 
-#ifndef SDK_CONF_H
-#define SDK_CONF_H
+#ifndef SDKCONFIG_H
+#define SDKCONFIG_H
 
 #ifndef DOXYGEN
 
@@ -34,7 +34,7 @@ extern "C" {
  * Determined with `git describe --tags` in `$ESP32_SDK_DIR`
  */
 #if !defined(IDF_VER) || DOXYGEN
-#include "esp32_idf_version.h"
+#include "esp_idf_ver.h"
 #endif
 
 /**
@@ -76,6 +76,7 @@ extern "C" {
  * can be overridden by an application specific configuration.
  */
 #define CONFIG_CONSOLE_UART_NUM 0
+#define CONFIG_ESP_CONSOLE_UART_NUM     CONFIG_CONSOLE_UART_NUM
 
 #ifndef CONFIG_CONSOLE_UART_BAUDRATE
 #define CONFIG_CONSOLE_UART_BAUDRATE    STDIO_UART_BAUDRATE
@@ -104,18 +105,29 @@ extern "C" {
 /**
  * System specific configuration (DO NOT CHANGE)
  */
-#define CONFIG_TRACEMEM_RESERVE_DRAM            0
-#define CONFIG_ULP_COPROC_RESERVE_MEM           0
-
-#define CONFIG_SYSTEM_EVENT_QUEUE_SIZE          32
-#define CONFIG_SYSTEM_EVENT_TASK_STACK_SIZE     2048
-#define CONFIG_NUMBER_OF_UNIVERSAL_MAC_ADDRESS  4
-
 #ifdef MODULE_NEWLIB_NANO
 #define CONFIG_NEWLIB_NANO_FORMAT               1
 #endif
+
+#define CONFIG_TRACEMEM_RESERVE_DRAM            0
+#define CONFIG_ULP_COPROC_RESERVE_MEM           0
+
+#define CONFIG_ESP_SYSTEM_EVENT_QUEUE_SIZE      32
+#define CONFIG_ESP_SYSTEM_EVENT_TASK_STACK_SIZE 2560
+#define CONFIG_NUMBER_OF_UNIVERSAL_MAC_ADDRESS  4
+
 #define CONFIG_ESP32_DEEP_SLEEP_WAKEUP_DELAY    2000
 
+#define CONFIG_ESP_TIMER_INTERRUPT_LEVEL        1
+#define CONFIG_ESP_TIMER_TASK_STACK_SIZE        3584
+#define CONFIG_ESP_TIMER_IMPL_FRC2              1
+#define CONFIG_ESP_TIME_FUNCS_USE_ESP_TIMER     1
+
+#define CONFIG_APP_BUILD_USE_FLASH_SECTIONS     1
+#define CONFIG_EFUSE_MAX_BLK_LEN                192
+
+#define CONFIG_PARTITION_TABLE_OFFSET           0x8000
+
 /**
  * Bluetooth configuration (DO NOT CHANGE)
  */
@@ -126,19 +138,29 @@ extern "C" {
  * SPI RAM configuration (DO NOT CHANGE)
  */
 #ifdef  MODULE_ESP_SPI_RAM
-#define CONFIG_SPIRAM_SUPPORT                   1
-#else
-#define CONFIG_SPIRAM_SUPPORT                   0
-#endif
-#define CONFIG_SPIRAM_SPEED_40M                 1
-#define CONFIG_SPIRAM_SIZE                      4194304
+#define CONFIG_SOC_SPIRAM_SUPPORTED             1
+#define CONFIG_ESP32_SPIRAM_SUPPORT             1
+#define CONFIG_D0WD_PSRAM_CLK_IO                17
+#define CONFIG_D0WD_PSRAM_CS_IO                 16
+#define CONFIG_D2WD_PSRAM_CLK_IO                9
+#define CONFIG_D2WD_PSRAM_CS_IO                 10
+#define CONFIG_PICO_PSRAM_CS_IO                 10
+#define CONFIG_SPIRAM_SUPPORT                   CONFIG_ESP32_SPIRAM_SUPPORT
+#define CONFIG_SPIRAM                           1
+#define CONFIG_SPIRAM_BANKSWITCH_ENABLE         1
+#define CONFIG_SPIRAM_BANKSWITCH_RESERVE        8
 #define CONFIG_SPIRAM_BOOT_INIT                 1
-#define CONFIG_SPIRAM_USE_MALLOC                1
-#define CONFIG_SPIRAM_TYPE_ESPPSRAM32           1
-#define CONFIG_SPIRAM_MEMTEST                   1
 #define CONFIG_SPIRAM_CACHE_WORKAROUND          1
+#define CONFIG_SPIRAM_CACHE_WORKAROUND_STRATEGY_MEMW 1
 #define CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL     16384
 #define CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL   32768
+#define CONFIG_SPIRAM_MEMTEST                   1
+#define CONFIG_SPIRAM_SIZE                      -1
+#define CONFIG_SPIRAM_SPEED_40M                 1
+#define CONFIG_SPIRAM_SPIWP_SD3_PIN             7
+#define CONFIG_SPIRAM_TYPE_AUTO                 1
+#define CONFIG_SPIRAM_USE_MALLOC                0   /* using malloc requires QStaticQueue */
+#endif
 
 /**
  * SPI Flash driver configuration (DO NOT CHANGE)
@@ -148,9 +170,16 @@ extern "C" {
 /**
  * Ethernet driver configuration (DO NOT CHANGE)
  */
-#define CONFIG_DMA_RX_BUF_NUM                   10
-#define CONFIG_DMA_TX_BUF_NUM                   10
-#define CONFIG_EMAC_TASK_PRIORITY               20
+#ifdef MODULE_ESP_ETH
+#define CONFIG_ETH_ENABLED                      1
+#endif
+#define CONFIG_ETH_USE_ESP32_EMAC               1
+#define CONFIG_ETH_PHY_INTERFACE_RMII           1
+#define CONFIG_ETH_RMII_CLK_INPUT               1
+#define CONFIG_ETH_RMII_CLK_IN_GPIO             0
+#define CONFIG_ETH_DMA_BUFFER_SIZE              512
+#define CONFIG_ETH_DMA_RX_BUFFER_NUM            10
+#define CONFIG_ETH_DMA_TX_BUFFER_NUM            10
 
 /**
  * Serial flasher config (DO NOT CHANGE)
@@ -169,34 +198,49 @@ extern "C" {
 /**
  * Wi-Fi driver configuration (DO NOT CHANGE)
  */
-#define CONFIG_ESP32_WIFI_TX_BUFFER_TYPE        1
-#define CONFIG_ESP32_WIFI_STATIC_TX_BUFFER      0
-#define CONFIG_ESP32_WIFI_DYNAMIC_TX_BUFFER     1
-#define CONFIG_ESP32_WIFI_DYNAMIC_TX_BUFFER_NUM 20
+#ifdef MODULE_ESP_WIFI_ANY
+#define CONFIG_ESP32_WIFI_ENABLED               1
+#endif
+#if defined(MODULE_ESP_WIFI_AP) || defined(MODULE_ESP_NOW)
+#define CONFIG_ESP_WIFI_SOFTAP_SUPPORT          1
+#endif
 #define CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM  10
-#define CONFIG_ESP32_WIFI_DYNAMIC_RX_BUFFER_NUM 20
+#define CONFIG_ESP32_WIFI_DYNAMIC_RX_BUFFER_NUM 32
+#define CONFIG_ESP32_WIFI_DYNAMIC_TX_BUFFER     1
+#define CONFIG_ESP32_WIFI_TX_BUFFER_TYPE        1
+#define CONFIG_ESP32_WIFI_DYNAMIC_TX_BUFFER_NUM 32
+#define CONFIG_ESP32_WIFI_CACHE_TX_BUFFER_NUM   32  /* required when CONFIG_SPIRAM_USE_MALLOC=0 */
 #define CONFIG_ESP32_WIFI_AMPDU_TX_ENABLED      1
-#define CONFIG_ESP32_WIFI_AMPDU_RX_ENABLED      1
 #define CONFIG_ESP32_WIFI_TX_BA_WIN             6
+#define CONFIG_ESP32_WIFI_AMPDU_RX_ENABLED      1
 #define CONFIG_ESP32_WIFI_RX_BA_WIN             6
-#define CONFIG_ESP32_WIFI_CSI_ENABLED           0
-#define CONFIG_ESP32_WIFI_TASK_PINNED_TO_CORE_0 1
-#define CONFIG_ESP32_WIFI_TASK_PINNED_TO_CORE_1 0
 #if MODULE_ESP_IDF_NVS_ENABLED
 #define CONFIG_ESP32_WIFI_NVS_ENABLED           1
 #endif
+#define CONFIG_ESP32_WIFI_TASK_PINNED_TO_CORE_0 1
+#define CONFIG_ESP32_WIFI_SOFTAP_BEACON_MAX_LEN 752
+#define CONFIG_ESP32_WIFI_MGMT_SBUF_NUM         32
+#define CONFIG_ESP32_WIFI_IRAM_OPT              1
+#define CONFIG_ESP32_WIFI_RX_IRAM_OPT           1
+#define CONFIG_ESP32_WIFI_ENABLE_WPA3_SAE       1
 
 /**
  * PHY configuration
  */
-#define CONFIG_ESP32_PHY_MAX_TX_POWER           20
-#define CONFIG_ESP32_PHY_MAX_WIFI_TX_POWER      20
-#define CONFIG_ESP32_PHY_INIT_DATA_IN_PARTITION 0
-
 #if MODULE_ESP_IDF_NVS_ENABLED
-#define CONFIG_ESP32_PHY_CALIBRATION_AND_DATA_STORAGE   1
+#define CONFIG_ESP_PHY_CALIBRATION_AND_DATA_STORAGE   1
 #endif
 
+#define CONFIG_ESP_PHY_INIT_DATA_IN_PARTITION   0
+#define CONFIG_ESP_PHY_MAX_TX_POWER             20
+#define CONFIG_ESP_PHY_MAX_WIFI_TX_POWER        20
+#define CONFIG_ESP_PHY_REDUCE_TX_POWER          1
+
+#define CONFIG_ESP32_PHY_CALIBRATION_AND_DATA_STORAGE   CONFIG_ESP_PHY_CALIBRATION_AND_DATA_STORAGE
+#define CONFIG_ESP32_PHY_MAX_WIFI_TX_POWER              CONFIG_ESP_PHY_MAX_WIFI_TX_POWER
+#define CONFIG_ESP32_REDUCE_PHY_TX_POWER                CONFIG_ESP_PHY_REDUCE_TX_POWER
+#define CONFIG_REDUCE_PHY_TX_POWER                      CONFIG_ESP_PHY_REDUCE_TX_POWER
+
 /**
  * EMAC driver configuration (DO NOT CHANGE)
  */
@@ -207,5 +251,5 @@ extern "C" {
 #endif
 
 #endif /* DOXYGEN */
-#endif /* SDK_CONF_H */
+#endif /* SDKCONFIG_H */
 /** @} */
diff --git a/cpu/esp32/esp-idf/nvs_flash/Kconfig b/cpu/esp32/esp-idf/nvs_flash/Kconfig
new file mode 100644
index 0000000000..09c88c5aa2
--- /dev/null
+++ b/cpu/esp32/esp-idf/nvs_flash/Kconfig
@@ -0,0 +1,16 @@
+# Copyright (c) 2021 HAW Hamburg
+#
+# 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.
+#
+
+config MODULE_ESP_IDF_NVS_FLASH
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    select MODULE_CPP
+    select MODULE_MTD
+    help
+        ESP-IDF non-volatile storage library. This library is required if
+        the WiFi interface is used.
diff --git a/cpu/esp32/esp-idf/nvs_flash/Makefile b/cpu/esp32/esp-idf/nvs_flash/Makefile
new file mode 100644
index 0000000000..111ed1c542
--- /dev/null
+++ b/cpu/esp32/esp-idf/nvs_flash/Makefile
@@ -0,0 +1,30 @@
+MODULE = esp_idf_nvs_flash
+
+# source files to be compiled for this module
+ESP32_SDK_SRCXX = \
+  components/nvs_flash/src/nvs_api.cpp \
+  components/nvs_flash/src/nvs_cxx_api.cpp \
+  components/nvs_flash/src/nvs_handle_locked.cpp \
+  components/nvs_flash/src/nvs_handle_simple.cpp \
+  components/nvs_flash/src/nvs_item_hash_list.cpp \
+  components/nvs_flash/src/nvs_page.cpp \
+  components/nvs_flash/src/nvs_pagemanager.cpp \
+  components/nvs_flash/src/nvs_partition.cpp \
+  components/nvs_flash/src/nvs_partition_lookup.cpp \
+  components/nvs_flash/src/nvs_partition_manager.cpp \
+  components/nvs_flash/src/nvs_storage.cpp \
+  components/nvs_flash/src/nvs_types.cpp \
+  #
+
+# additional include pathes required by this module
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_rom/include
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+include ../esp_idf.mk
+
+# vendor code contains casts that increase alignment requirements. Let's hope
+# those are false positives.
+CFLAGS += -Wno-cast-align
diff --git a/cpu/esp32/esp-idf/spi_flash/Kconfig b/cpu/esp32/esp-idf/spi_flash/Kconfig
new file mode 100644
index 0000000000..a27e1876d3
--- /dev/null
+++ b/cpu/esp32/esp-idf/spi_flash/Kconfig
@@ -0,0 +1,13 @@
+# 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.
+#
+
+config MODULE_ESP_IDF_SPI_FLASH
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    help
+        ESP-IDF code for accessing external SPI Flash.
diff --git a/cpu/esp32/esp-idf/spi_flash/Makefile b/cpu/esp32/esp-idf/spi_flash/Makefile
new file mode 100644
index 0000000000..de77e18bd4
--- /dev/null
+++ b/cpu/esp32/esp-idf/spi_flash/Makefile
@@ -0,0 +1,23 @@
+MODULE = esp_idf_spi_flash
+
+# source files to be compiled for this module
+ESP32_SDK_SRC = \
+  components/bootloader_support/src/bootloader_common.c \
+  components/bootloader_support/src/bootloader_efuse_$(CPU).c \
+  components/bootloader_support/src/bootloader_flash_config_$(CPU).c \
+  components/driver/spi_common.c \
+  components/soc/$(CPU)/spi_periph.c \
+  components/spi_flash/$(CPU)/spi_flash_rom_patch.c \
+  components/spi_flash/flash_ops.c \
+  #
+
+# additional include pathes required by this module
+INCLUDES += -I$(ESP32_SDK_DIR)/components/bootloader_support/include_bootloader
+INCLUDES += -I$(ESP32_SDK_DIR)/components/spi_flash/include/spi_flash
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+include ../esp_idf.mk
+include ../esp_idf_cflags.mk
diff --git a/cpu/esp32/esp-idf/spi_ram/Kconfig b/cpu/esp32/esp-idf/spi_ram/Kconfig
new file mode 100644
index 0000000000..3c0118e984
--- /dev/null
+++ b/cpu/esp32/esp-idf/spi_ram/Kconfig
@@ -0,0 +1,13 @@
+# 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.
+#
+
+config MODULE_ESP_IDF_SPI_RAM
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    help
+        ESP-IDF code for accessing external SPI RAM.
diff --git a/cpu/esp32/esp-idf/spi_ram/Makefile b/cpu/esp32/esp-idf/spi_ram/Makefile
new file mode 100644
index 0000000000..fe25153d86
--- /dev/null
+++ b/cpu/esp32/esp-idf/spi_ram/Makefile
@@ -0,0 +1,18 @@
+MODULE = esp_idf_spi_ram
+
+# source files to be compiled for this module
+ESP32_SDK_SRC = \
+  components/esp_hw_support/port/$(CPU)/spiram.c \
+  components/esp_hw_support/port/$(CPU)/spiram_psram.c \
+  components/esp_hw_support/port/$(CPU)/cache_sram_mmu.c \
+  #
+
+# additional include pathes required by this module
+INCLUDES += -I$(ESP32_SDK_DIR)/components/soc/$(CPU)/include
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+include ../esp_idf.mk
+include ../esp_idf_cflags.mk
diff --git a/cpu/esp32/esp-idf/wifi/Kconfig b/cpu/esp32/esp-idf/wifi/Kconfig
new file mode 100644
index 0000000000..7609e8dbe9
--- /dev/null
+++ b/cpu/esp32/esp-idf/wifi/Kconfig
@@ -0,0 +1,13 @@
+# 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.
+#
+
+config MODULE_ESP_IDF_WIFI
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    help
+        ESP-IDF code required for accessing the WiFi interface.
diff --git a/cpu/esp32/esp-idf/wifi/Makefile b/cpu/esp32/esp-idf/wifi/Makefile
new file mode 100644
index 0000000000..a2759bc42d
--- /dev/null
+++ b/cpu/esp32/esp-idf/wifi/Makefile
@@ -0,0 +1,27 @@
+MODULE = esp_idf_wifi
+
+# source files to be compiled for this module
+ESP32_SDK_SRC = \
+  components/driver/adc_common.c \
+  components/driver/rtc_module.c \
+  components/esp_event/event_send.c \
+  components/esp_hw_support/hw_random.c \
+  components/esp_hw_support/port/$(CPU)/dport_access.c \
+  components/esp_phy/src/phy_init.c \
+  components/esp_wifi/$(CPU)/esp_adapter.c \
+  components/esp_wifi/src/wifi_init.c \
+  #
+
+# additional include pathes required by this module
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_phy/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_phy/$(CPU)/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/tcpip_adapter/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/wpa_supplicant/port/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/wpa_supplicant/esp_supplicant/include
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+include ../esp_idf.mk
+include ../esp_idf_cflags.mk
diff --git a/cpu/esp32/esp-idf/wpa_supplicant/Kconfig b/cpu/esp32/esp-idf/wpa_supplicant/Kconfig
new file mode 100644
index 0000000000..b3c5908218
--- /dev/null
+++ b/cpu/esp32/esp-idf/wpa_supplicant/Kconfig
@@ -0,0 +1,14 @@
+# Copyright (c) 2021 HAW Hamburg
+#               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.
+#
+
+config MODULE_ESP_IDF_WPA_SUPPLICANT
+    bool
+    depends on TEST_KCONFIG
+    depends on MODULE_ESP_IDF
+    help
+        ESP-IDF WPA supplicant.
diff --git a/cpu/esp32/esp-idf/wpa_supplicant/Makefile b/cpu/esp32/esp-idf/wpa_supplicant/Makefile
new file mode 100644
index 0000000000..0927bf5a2c
--- /dev/null
+++ b/cpu/esp32/esp-idf/wpa_supplicant/Makefile
@@ -0,0 +1,146 @@
+MODULE = esp_idf_wpa_supplicant
+
+# source file list to be compiled as configured in component.mk
+ESP32_SDK_SRC = \
+  components/wpa_supplicant/esp_supplicant/src/esp_dpp.c \
+  components/wpa_supplicant/esp_supplicant/src/esp_hostap.c \
+  components/wpa_supplicant/esp_supplicant/src/esp_wpa2.c \
+  components/wpa_supplicant/esp_supplicant/src/esp_wpa3.c \
+  components/wpa_supplicant/esp_supplicant/src/esp_wpa_main.c \
+  components/wpa_supplicant/esp_supplicant/src/esp_wpas_glue.c \
+  components/wpa_supplicant/esp_supplicant/src/esp_wps.c \
+  components/wpa_supplicant/port/os_xtensa.c \
+  components/wpa_supplicant/src/ap/ap_config.c \
+  components/wpa_supplicant/src/ap/ieee802_1x.c \
+  components/wpa_supplicant/src/ap/wpa_auth.c \
+  components/wpa_supplicant/src/ap/wpa_auth_ie.c \
+  components/wpa_supplicant/src/common/dpp.c \
+  components/wpa_supplicant/src/common/sae.c \
+  components/wpa_supplicant/src/common/wpa_common.c \
+  components/wpa_supplicant/src/crypto/aes-cbc.c \
+  components/wpa_supplicant/src/crypto/aes-ccm.c \
+  components/wpa_supplicant/src/crypto/aes-ctr.c \
+  components/wpa_supplicant/src/crypto/aes-gcm.c \
+  components/wpa_supplicant/src/crypto/aes-internal.c \
+  components/wpa_supplicant/src/crypto/aes-internal-dec.c \
+  components/wpa_supplicant/src/crypto/aes-internal-enc.c \
+  components/wpa_supplicant/src/crypto/aes-omac1.c \
+  components/wpa_supplicant/src/crypto/aes-siv.c \
+  components/wpa_supplicant/src/crypto/aes-unwrap.c \
+  components/wpa_supplicant/src/crypto/aes-wrap.c \
+  components/wpa_supplicant/src/crypto/ccmp.c \
+  components/wpa_supplicant/src/crypto/crypto_internal.c \
+  components/wpa_supplicant/src/crypto/crypto_internal-cipher.c \
+  components/wpa_supplicant/src/crypto/crypto_internal-modexp.c \
+  components/wpa_supplicant/src/crypto/crypto_internal-rsa.c \
+  components/wpa_supplicant/src/crypto/crypto_ops.c \
+  components/wpa_supplicant/src/crypto/des-internal.c \
+  components/wpa_supplicant/src/crypto/dh_group5.c \
+  components/wpa_supplicant/src/crypto/dh_groups.c \
+  components/wpa_supplicant/src/crypto/md4-internal.c \
+  components/wpa_supplicant/src/crypto/md5.c \
+  components/wpa_supplicant/src/crypto/md5-internal.c \
+  components/wpa_supplicant/src/crypto/ms_funcs.c \
+  components/wpa_supplicant/src/crypto/rc4.c \
+  components/wpa_supplicant/src/crypto/sha1.c \
+  components/wpa_supplicant/src/crypto/sha1-internal.c \
+  components/wpa_supplicant/src/crypto/sha1-pbkdf2.c \
+  components/wpa_supplicant/src/crypto/sha1-prf.c \
+  components/wpa_supplicant/src/crypto/sha1-tlsprf.c \
+  components/wpa_supplicant/src/crypto/sha256.c \
+  components/wpa_supplicant/src/crypto/sha256-internal.c \
+  components/wpa_supplicant/src/crypto/sha256-kdf.c \
+  components/wpa_supplicant/src/crypto/sha256-prf.c \
+  components/wpa_supplicant/src/crypto/sha256-tlsprf.c \
+  components/wpa_supplicant/src/crypto/sha384-internal.c \
+  components/wpa_supplicant/src/crypto/sha384-prf.c \
+  components/wpa_supplicant/src/crypto/sha384-tlsprf.c \
+  components/wpa_supplicant/src/crypto/sha512-internal.c \
+  components/wpa_supplicant/src/eap_peer/chap.c \
+  components/wpa_supplicant/src/eap_peer/eap.c \
+  components/wpa_supplicant/src/eap_peer/eap_common.c \
+  components/wpa_supplicant/src/eap_peer/eap_mschapv2.c \
+  components/wpa_supplicant/src/eap_peer/eap_peap.c \
+  components/wpa_supplicant/src/eap_peer/eap_peap_common.c \
+  components/wpa_supplicant/src/eap_peer/eap_tls.c \
+  components/wpa_supplicant/src/eap_peer/eap_tls_common.c \
+  components/wpa_supplicant/src/eap_peer/eap_ttls.c \
+  components/wpa_supplicant/src/eap_peer/mschapv2.c \
+  components/wpa_supplicant/src/rsn_supp/pmksa_cache.c \
+  components/wpa_supplicant/src/rsn_supp/wpa.c \
+  components/wpa_supplicant/src/rsn_supp/wpa_ie.c \
+  components/wpa_supplicant/src/tls/asn1.c \
+  components/wpa_supplicant/src/tls/bignum.c \
+  components/wpa_supplicant/src/tls/pkcs1.c \
+  components/wpa_supplicant/src/tls/pkcs5.c \
+  components/wpa_supplicant/src/tls/pkcs8.c \
+  components/wpa_supplicant/src/tls/rsa.c \
+  components/wpa_supplicant/src/tls/tls_internal.c \
+  components/wpa_supplicant/src/tls/tlsv1_client.c \
+  components/wpa_supplicant/src/tls/tlsv1_client_read.c \
+  components/wpa_supplicant/src/tls/tlsv1_client_write.c \
+  components/wpa_supplicant/src/tls/tlsv1_common.c \
+  components/wpa_supplicant/src/tls/tlsv1_cred.c \
+  components/wpa_supplicant/src/tls/tlsv1_record.c \
+  components/wpa_supplicant/src/tls/tlsv1_server.c \
+  components/wpa_supplicant/src/tls/tlsv1_server_read.c \
+  components/wpa_supplicant/src/tls/tlsv1_server_write.c \
+  components/wpa_supplicant/src/tls/x509v3.c \
+  components/wpa_supplicant/src/utils/base64.c \
+  components/wpa_supplicant/src/utils/bitfield.c \
+  components/wpa_supplicant/src/utils/common.c \
+  components/wpa_supplicant/src/utils/ext_password.c \
+  components/wpa_supplicant/src/utils/json.c \
+  components/wpa_supplicant/src/utils/uuid.c \
+  components/wpa_supplicant/src/utils/wpabuf.c \
+  components/wpa_supplicant/src/utils/wpa_debug.c \
+  components/wpa_supplicant/src/wps/wps_attr_build.c \
+  components/wpa_supplicant/src/wps/wps_attr_parse.c \
+  components/wpa_supplicant/src/wps/wps_attr_process.c \
+  components/wpa_supplicant/src/wps/wps.c \
+  components/wpa_supplicant/src/wps/wps_common.c \
+  components/wpa_supplicant/src/wps/wps_dev_attr.c \
+  components/wpa_supplicant/src/wps/wps_enrollee.c \
+  components/wpa_supplicant/src/wps/wps_registrar.c \
+  components/wpa_supplicant/src/wps/wps_validate.c \
+  #
+
+# additional include pathes required by this module
+INCLUDES += -I$(ESP32_SDK_DIR)/components/wpa_supplicant/esp_supplicant/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/wpa_supplicant/esp_supplicant/src
+INCLUDES += -I$(ESP32_SDK_DIR)/components/wpa_supplicant/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/wpa_supplicant/port/include
+INCLUDES += -I$(ESP32_SDK_DIR)/components/wpa_supplicant/src
+INCLUDES += -I$(ESP32_SDK_DIR)/components/wpa_supplicant/src/utils
+
+include $(RIOTBASE)/Makefile.base
+
+ESP32_SDK_BIN = $(BINDIR)/$(MODULE)
+
+# definitions for wpa_supplicant from components/wpa_supplicant/component.mk
+CFLAGS += -D__ets__
+CFLAGS += -DCONFIG_DPP
+CFLAGS += -DCONFIG_ECC
+CFLAGS += -DCONFIG_IEEE80211W
+CFLAGS += -DCONFIG_SHA256
+CFLAGS += -DCONFIG_WNM
+CFLAGS += -DCONFIG_WPS_PIN
+CFLAGS += -DCONFIG_WPS2
+CFLAGS += -DEAP_MSCHAPv2
+CFLAGS += -DEAP_PEAP
+CFLAGS += -DEAP_PEER_METHOD
+CFLAGS += -DEAP_TLS
+CFLAGS += -DEAP_TTLS
+CFLAGS += -DESP_SUPPLICANT
+CFLAGS += -DESP32_WORKAROUND
+CFLAGS += -DESPRESSIF_USE
+CFLAGS += -DIEEE8021X_EAPOL
+CFLAGS += -DUSE_WPA2_TASK
+CFLAGS += -DUSE_WPS_TASK
+CFLAGS += -Wno-strict-aliasing
+CFLAGS += -Wno-format-nonliteral
+CFLAGS += -Wno-format-security
+CFLAGS += -std=gnu99
+
+include ../esp_idf.mk
+include ../esp_idf_cflags.mk