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pkarashchenko pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
new 498a24cc54 esp32s3: Add esp32s3-meadow board
498a24cc54 is described below
commit 498a24cc54f1debf015f69f9fb55b63a1e607e81
Author: Alan Carvalho de Assis <acas...@gmail.com>
AuthorDate: Wed Mar 29 16:08:46 2023 -0300
esp32s3: Add esp32s3-meadow board
---
boards/Kconfig | 14 ++
boards/xtensa/esp32s3/esp32s3-meadow/Kconfig | 51 +++++++
.../esp32s3/esp32s3-meadow/configs/nsh/defconfig | 44 ++++++
.../xtensa/esp32s3/esp32s3-meadow/include/board.h | 46 ++++++
.../esp32s3/esp32s3-meadow/scripts/Make.defs | 66 +++++++++
boards/xtensa/esp32s3/esp32s3-meadow/src/Make.defs | 35 +++++
.../esp32s3/esp32s3-meadow/src/esp32s3-meadow.h | 67 +++++++++
.../esp32s3/esp32s3-meadow/src/esp32s3_appinit.c | 80 +++++++++++
.../esp32s3/esp32s3-meadow/src/esp32s3_boot.c | 83 +++++++++++
.../esp32s3/esp32s3-meadow/src/esp32s3_bringup.c | 155 +++++++++++++++++++++
.../esp32s3/esp32s3-meadow/src/esp32s3_reset.c | 63 +++++++++
11 files changed, 704 insertions(+)
diff --git a/boards/Kconfig b/boards/Kconfig
index 3321ee0419..cb14dac00d 100644
--- a/boards/Kconfig
+++ b/boards/Kconfig
@@ -423,6 +423,16 @@ config ARCH_BOARD_ESP32S3_EYE
featuring the ESP32-S3 CPU with a 2-Megapixel camera, an LCD
display,
a microphone, an 8 MB Octal PSRAM and an 8 MB flash.
+config ARCH_BOARD_ESP32S3_MEADOW
+ bool "WildernessLabs ESP32S3-Meadow Board"
+ depends on ARCH_CHIP_ESP32S3WROOM1
+ select ARCH_HAVE_LEDS
+ select ARCH_HAVE_BUTTONS
+ select ARCH_HAVE_IRQBUTTONS if ESP32S3_GPIO_IRQ
+ ---help---
+ The ESP32-S3-Meadow is a small-sized board produced by
WildernessLabs
+ featuring the ESP32-S3 CPU with 32MiB Octal SPI PSRAM and 64
MiB flash.
+
config ARCH_BOARD_ESP32C6_GENERIC
bool "Espressif ESP32-C6 Generic DevKit"
depends on ESPRESSIF_ESP32C6
@@ -2819,6 +2829,7 @@ config ARCH_BOARD
default "franzininho-wifi" if ARCH_BOARD_FRANZININHO_WIFI
default "esp32s3-devkit" if ARCH_BOARD_ESP32S3_DEVKIT
default "esp32s3-eye" if ARCH_BOARD_ESP32S3_EYE
+ default "esp32s3-meadow" if ARCH_BOARD_ESP32S3_MEADOW
default "esp32c6-devkit" if ARCH_BOARD_ESP32C6_DEVKIT
default "esp32c6-generic" if ARCH_BOARD_ESP32C6_GENERIC
default "esp32h2-generic" if ARCH_BOARD_ESP32H2_GENERIC
@@ -3815,6 +3826,9 @@ endif
if ARCH_BOARD_ESP32S3_EYE
source "boards/xtensa/esp32s3/esp32s3-eye/Kconfig"
endif
+if ARCH_BOARD_ESP32S3_MEADOW
+source "boards/xtensa/esp32s3/esp32s3-meadow/Kconfig"
+endif
if ARCH_BOARD_ESP32C6_DEVKIT
source "boards/risc-v/esp32c6/esp32c6-devkit/Kconfig"
endif
diff --git a/boards/xtensa/esp32s3/esp32s3-meadow/Kconfig
b/boards/xtensa/esp32s3/esp32s3-meadow/Kconfig
new file mode 100644
index 0000000000..3d5cc808aa
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-meadow/Kconfig
@@ -0,0 +1,51 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+if ARCH_BOARD_ESP32S3_MEADOW
+
+config ESP32S3_STORAGE_MTD_OFFSET
+ hex "Storage MTD base address in SPI Flash"
+ default 0x180000
+ depends on ESP32S3_MTD
+ ---help---
+ MTD base address in SPI Flash.
+
+config ESP32S3_STORAGE_MTD_SIZE
+ hex "Storage MTD size in SPI Flash"
+ default 0x100000
+ depends on ESP32S3_MTD
+ ---help---
+ MTD size in SPI Flash.
+
+choice ESP32S3_SPIFLASH_FS
+ prompt "Mount SPI Flash MTD on bring-up"
+ default ESP32S3_SPIFLASH_SMARTFS
+ depends on ESP32S3_MTD
+ optional
+ ---help---
+ Mount the SPI Flash MTD with the selected File System format on
board
+ bring-up.
+ If not selected, the MTD will be registered as a device node on
/dev.
+
+config ESP32S3_SPIFLASH_SMARTFS
+ bool "SmartFS"
+ select FS_SMARTFS
+ select MTD_SMART
+
+config ESP32S3_SPIFLASH_NXFFS
+ bool "NXFFS"
+ select FS_NXFFS
+
+config ESP32S3_SPIFLASH_SPIFFS
+ bool "SPIFFS"
+ select FS_SPIFFS
+
+config ESP32S3_SPIFLASH_LITTLEFS
+ bool "LittleFS"
+ select FS_LITTLEFS
+
+endchoice
+
+endif # ARCH_BOARD_ESP32S3_MEADOW
diff --git a/boards/xtensa/esp32s3/esp32s3-meadow/configs/nsh/defconfig
b/boards/xtensa/esp32s3/esp32s3-meadow/configs/nsh/defconfig
new file mode 100644
index 0000000000..0a7ae3008e
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-meadow/configs/nsh/defconfig
@@ -0,0 +1,44 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed
.config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that
includes your
+# modifications.
+#
+# CONFIG_ARCH_LEDS is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+CONFIG_ARCH="xtensa"
+CONFIG_ARCH_BOARD="esp32s3-meadow"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ESP32S3_MEADOW=y
+CONFIG_ARCH_CHIP="esp32s3"
+CONFIG_ARCH_CHIP_ESP32S3=y
+CONFIG_ARCH_CHIP_ESP32S3WROOM1=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_XTENSA=y
+CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DEV_ZERO=y
+CONFIG_ESP32S3_GPIO_IRQ=y
+CONFIG_ESP32S3_USBSERIAL=y
+CONFIG_FS_PROCFS=y
+CONFIG_IDLETHREAD_STACKSIZE=3072
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_INTELHEX_BINARY=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=114688
+CONFIG_RAM_START=0x20000000
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=6
+CONFIG_START_MONTH=12
+CONFIG_START_YEAR=2011
+CONFIG_SYSTEM_NSH=y
diff --git a/boards/xtensa/esp32s3/esp32s3-meadow/include/board.h
b/boards/xtensa/esp32s3/esp32s3-meadow/include/board.h
new file mode 100644
index 0000000000..d515a17364
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-meadow/include/board.h
@@ -0,0 +1,46 @@
+/****************************************************************************
+ * boards/xtensa/esp32s3/esp32s3-meadow/include/board.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_XTENSA_ESP32S3_ESP32S3_MEADOW_INCLUDE_BOARD_H
+#define __BOARDS_XTENSA_ESP32S3_ESP32S3_MEADOW_INCLUDE_BOARD_H
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Clocking *****************************************************************/
+
+/* The ESP32-S3-MEADOW board is fitted with a 40MHz crystal */
+
+#define BOARD_XTAL_FREQUENCY 40000000
+
+#ifdef CONFIG_ESP32S3_DEFAULT_CPU_FREQ_MHZ
+# define BOARD_CLOCK_FREQUENCY (CONFIG_ESP32S3_DEFAULT_CPU_FREQ_MHZ * 1000000)
+#else
+# define BOARD_CLOCK_FREQUENCY 80000000
+#endif
+
+/* LED definitions **********************************************************/
+
+/* Define how many LEDs this board has (needed by userleds) */
+
+#define BOARD_NLEDS 1
+
+#endif /* __BOARDS_XTENSA_ESP32S3_ESP32S3_MEADOW_INCLUDE_BOARD_H */
diff --git a/boards/xtensa/esp32s3/esp32s3-meadow/scripts/Make.defs
b/boards/xtensa/esp32s3/esp32s3-meadow/scripts/Make.defs
new file mode 100644
index 0000000000..3c937212f3
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-meadow/scripts/Make.defs
@@ -0,0 +1,66 @@
+############################################################################
+# boards/xtensa/esp32s3/esp32s3-meadow/scripts/Make.defs
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership. The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(TOPDIR)/.config
+include $(TOPDIR)/tools/Config.mk
+include $(TOPDIR)/tools/esp32s3/Config.mk
+include $(TOPDIR)/arch/xtensa/src/lx7/Toolchain.defs
+
+ARCHSCRIPT += $(BOARD_COMMON_DIR)$(DELIM)scripts$(DELIM)esp32s3_peripherals.ld
+ARCHSCRIPT += $(BOARD_COMMON_DIR)$(DELIM)scripts$(DELIM)esp32s3_rom.ld
+
+# Pick the linker scripts from the board level if they exist, if not
+# pick the common linker scripts.
+
+ifeq ($(CONFIG_BUILD_PROTECTED),y)
+ ARCHSCRIPT += $(call FINDSCRIPT,protected_memory.ld)
+ ARCHSCRIPT += $(call FINDSCRIPT,kernel-space.ld)
+else
+ ARCHSCRIPT += $(call FINDSCRIPT,flat_memory.ld)
+ ARCHSCRIPT += $(call FINDSCRIPT,legacy_sections.ld)
+endif
+
+ifneq ($(CONFIG_DEBUG_NOOPT),y)
+ ARCHOPTIMIZATION += -fno-strength-reduce
+endif
+
+ARCHPICFLAGS = -fpic
+
+CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES)
$(ARCHDEFINES) $(EXTRAFLAGS) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS)
$(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
+AFLAGS := $(CFLAGS) -D__ASSEMBLY__
+
+# Loadable module definitions
+
+CMODULEFLAGS = $(CFLAGS) -mtext-section-literals
+
+LDMODULEFLAGS = -r -e module_initialize
+LDMODULEFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)/libs/libc/modlib/gnu-elf.ld)
+
+# ELF module definitions
+
+CELFFLAGS = $(CFLAGS) -mtext-section-literals
+CXXELFFLAGS = $(CXXFLAGS) -mtext-section-literals
+
+LDELFFLAGS = -r -e main
+LDELFFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)/binfmt/libelf/gnu-elf.ld)
diff --git a/boards/xtensa/esp32s3/esp32s3-meadow/src/Make.defs
b/boards/xtensa/esp32s3/esp32s3-meadow/src/Make.defs
new file mode 100644
index 0000000000..eb58641c8e
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-meadow/src/Make.defs
@@ -0,0 +1,35 @@
+############################################################################
+# boards/xtensa/esp32s3/esp32s3-meadow/src/Make.defs
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership. The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(TOPDIR)/Make.defs
+
+CSRCS = esp32s3_boot.c esp32s3_bringup.c
+
+ifeq ($(CONFIG_BOARDCTL),y)
+CSRCS += esp32s3_appinit.c
+ifeq ($(CONFIG_BOARDCTL_RESET),y)
+CSRCS += esp32s3_reset.c
+endif
+endif
+
+DEPPATH += --dep-path board
+VPATH += :board
+CFLAGS += $(shell $(INCDIR) "$(CC)"
$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)board)
+
diff --git a/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3-meadow.h
b/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3-meadow.h
new file mode 100644
index 0000000000..3af7ea469b
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3-meadow.h
@@ -0,0 +1,67 @@
+/****************************************************************************
+ * boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3-meadow.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_XTENSA_ESP32S3_ESP32S3_MEADOW_SRC_ESP32S3_MEADOW_H
+#define __BOARDS_XTENSA_ESP32S3_ESP32S3_MEADOW_SRC_ESP32S3_MEADOW_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/compiler.h>
+#include <stdint.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: esp32s3_bringup
+ *
+ * Description:
+ * Perform architecture-specific initialization
+ *
+ * CONFIG_BOARD_LATE_INITIALIZE=y :
+ * Called from board_late_initialize().
+ *
+ * CONFIG_BOARD_LATE_INITIALIZE=y && CONFIG_BOARDCTL=y :
+ * Called from the NSH library via board_app_initialize()
+ *
+ ****************************************************************************/
+
+int esp32s3_bringup(void);
+
+#endif /* __ASSEMBLY__ */
+#endif /* __BOARDS_XTENSA_ESP32S3_ESP32S3_MEADOW_SRC_ESP32S3_MEADOW_H */
diff --git a/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_appinit.c
b/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_appinit.c
new file mode 100644
index 0000000000..bc47ca89c6
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_appinit.c
@@ -0,0 +1,80 @@
+/****************************************************************************
+ * boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_appinit.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <nuttx/board.h>
+
+#include "esp32s3-meadow.h"
+
+#ifdef CONFIG_BOARDCTL
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_app_initialize
+ *
+ * Description:
+ * Perform application specific initialization. This function is never
+ * called directly from application code, but only indirectly via the
+ * (non-standard) boardctl() interface using the command BOARDIOC_INIT.
+ *
+ * Input Parameters:
+ * arg - The boardctl() argument is passed to the board_app_initialize()
+ * implementation without modification. The argument has no
+ * meaning to NuttX; the meaning of the argument is a contract
+ * between the board-specific initialization logic and the
+ * matching application logic. The value could be such things as a
+ * mode enumeration value, a set of DIP switch settings, a
+ * pointer to configuration data read from a file or serial FLASH,
+ * or whatever you would like to do with it. Every implementation
+ * should accept zero/NULL as a default configuration.
+ *
+ * Returned Value:
+ * Zero (OK) is returned on success; a negated errno value is returned on
+ * any failure to indicate the nature of the failure.
+ *
+ ****************************************************************************/
+
+int board_app_initialize(uintptr_t arg)
+{
+#ifdef CONFIG_BOARD_LATE_INITIALIZE
+ /* Board initialization already performed by board_late_initialize() */
+
+ return OK;
+#else
+ /* Perform board-specific initialization */
+
+ return esp32s3_bringup();
+#endif
+}
+
+#endif /* CONFIG_BOARDCTL */
diff --git a/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_boot.c
b/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_boot.c
new file mode 100644
index 0000000000..566521a9b5
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_boot.c
@@ -0,0 +1,83 @@
+/****************************************************************************
+ * boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_boot.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <nuttx/board.h>
+#include <nuttx/mm/mm.h>
+#include <arch/board/board.h>
+
+#include "esp32s3-meadow.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: esp32s3_board_initialize
+ *
+ * Description:
+ * All ESP32-S3 boards must provide the following entry point.
+ * This entry point is called early in the initialization -- after all
+ * memory has been configured and mapped but before any devices have been
+ * initialized.
+ *
+ ****************************************************************************/
+
+void esp32s3_board_initialize(void)
+{
+}
+
+/****************************************************************************
+ * Name: board_late_initialize
+ *
+ * Description:
+ * If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
+ * initialization call will be performed in the boot-up sequence to a
+ * function called board_late_initialize(). board_late_initialize() will
+ * be called immediately after up_initialize() is called and just before
+ * the initial application is started. This additional initialization
+ * phase may be used, for example, to initialize board-specific device
+ * drivers.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_BOARD_LATE_INITIALIZE
+void board_late_initialize(void)
+{
+ /* Perform board-specific initialization */
+
+ esp32s3_bringup();
+}
+#endif
diff --git a/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_bringup.c
b/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_bringup.c
new file mode 100644
index 0000000000..0306c9901f
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_bringup.c
@@ -0,0 +1,155 @@
+/****************************************************************************
+ * boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_bringup.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <syslog.h>
+#include <debug.h>
+#include <stdio.h>
+
+#include <errno.h>
+#include <nuttx/fs/fs.h>
+
+#ifdef CONFIG_ESP32S3_TIMER
+# include "esp32s3_board_tim.h"
+#endif
+
+#ifdef CONFIG_ESP32S3_RT_TIMER
+# include "esp32s3_rt_timer.h"
+#endif
+
+#ifdef CONFIG_WATCHDOG
+# include "esp32s3_board_wdt.h"
+#endif
+
+#ifdef CONFIG_INPUT_BUTTONS
+# include <nuttx/input/buttons.h>
+#endif
+
+#include "esp32s3-meadow.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: esp32s3_bringup
+ *
+ * Description:
+ * Perform architecture-specific initialization
+ *
+ * CONFIG_BOARD_LATE_INITIALIZE=y :
+ * Called from board_late_initialize().
+ *
+ * CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_BOARDCTL=y :
+ * Called from the NSH library
+ *
+ ****************************************************************************/
+
+int esp32s3_bringup(void)
+{
+ int ret;
+
+#ifdef CONFIG_FS_PROCFS
+ /* Mount the procfs file system */
+
+ ret = nx_mount(NULL, "/proc", "procfs", 0, NULL);
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "ERROR: Failed to mount procfs at /proc: %d\n", ret);
+ }
+#endif
+
+#ifdef CONFIG_FS_TMPFS
+ /* Mount the tmpfs file system */
+
+ ret = nx_mount(NULL, CONFIG_LIBC_TMPDIR, "tmpfs", 0, NULL);
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "ERROR: Failed to mount tmpfs at %s: %d\n",
+ CONFIG_LIBC_TMPDIR, ret);
+ }
+#endif
+
+#ifdef CONFIG_ESP32S3_TIMER
+ /* Configure general purpose timers */
+
+ ret = board_tim_init();
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "Failed to initialize timers: %d\n", ret);
+ }
+#endif
+
+#ifdef CONFIG_ESP32S3_RT_TIMER
+ ret = esp32s3_rt_timer_init();
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "Failed to initialize RT timer: %d\n", ret);
+ }
+#endif
+
+#ifdef CONFIG_WATCHDOG
+ /* Configure watchdog timer */
+
+ ret = board_wdt_init();
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "Failed to initialize watchdog timer: %d\n", ret);
+ }
+#endif
+
+#ifdef CONFIG_INPUT_BUTTONS
+ /* Register the BUTTON driver */
+
+ ret = btn_lower_initialize("/dev/buttons");
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "Failed to initialize button driver: %d\n", ret);
+ }
+#endif
+
+#ifdef CONFIG_ESP32S3_SPIFLASH
+ ret = board_spiflash_init();
+ if (ret)
+ {
+ syslog(LOG_ERR, "ERROR: Failed to initialize SPI Flash\n");
+ }
+#endif
+
+ /* If we got here then perhaps not all initialization was successful, but
+ * at least enough succeeded to bring-up NSH with perhaps reduced
+ * capabilities.
+ */
+
+ UNUSED(ret);
+ return OK;
+}
diff --git a/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_reset.c
b/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_reset.c
new file mode 100644
index 0000000000..b3e45bd3e5
--- /dev/null
+++ b/boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_reset.c
@@ -0,0 +1,63 @@
+/****************************************************************************
+ * boards/xtensa/esp32s3/esp32s3-meadow/src/esp32s3_reset.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/arch.h>
+#include <nuttx/board.h>
+
+#ifdef CONFIG_BOARDCTL_RESET
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_reset
+ *
+ * Description:
+ * Reset board. Support for this function is required by board-level
+ * logic if CONFIG_BOARDCTL_RESET is selected.
+ *
+ * Input Parameters:
+ * status - Status information provided with the reset event. This
+ * meaning of this status information is board-specific. If not
+ * used by a board, the value zero may be provided in calls to
+ * board_reset().
+ *
+ * Returned Value:
+ * If this function returns, then it was not possible to power-off the
+ * board due to some constraints. The return value in this case is a
+ * board-specific reason for the failure to shutdown.
+ *
+ ****************************************************************************/
+
+int board_reset(int status)
+{
+ up_systemreset();
+
+ return 0;
+}
+
+#endif /* CONFIG_BOARDCTL_RESET */
