xtensa/esp32s3: Support partition and OTA device

Signed-off-by: chenwen@espressif.com <chenwen@espressif.com>

arch/xtensa/src/esp32s3/Kconfig

@@ -1660,6 +1660,24 @@ config ESP32S3_SPIFLASH_OP_TASK_STACKSIZE
 		to disable non-IRAM interrupts and wait for the SPI flash operation
 		to be finished.
 
+if ESP32S3_APP_FORMAT_LEGACY
+
+comment "Partition Table configuration"
+
+config ESP32S3_PARTITION_TABLE
+	bool "Create MTD partitions from Partition Table"
+	default n
+	depends on ESP32S3_MTD
+	---help---
+		Decode partition table and initialize partitions as MTD.
+
+config ESP32S3_PARTITION_MOUNTPT
+	string "Partition mount point"
+	default "/dev/esp/partition/"
+	depends on ESP32S3_PARTITION_TABLE
+
+endif # ESP32S3_APP_FORMAT_LEGACY
+
 endif # ESP32S3_SPIFLASH
 
 endmenu # SPI Flash configuration

arch/xtensa/src/esp32s3/Make.defs

@@ -132,6 +132,10 @@ CHIP_CSRCS += esp32s3_spiflash_mtd.c
 endif
 endif
 
+ifeq ($(CONFIG_ESP32S3_PARTITION_TABLE),y)
+CHIP_CSRCS += esp32s3_partition.c
+endif
+
 ifeq ($(CONFIG_ESP32S3_SPIRAM),y)
 CHIP_CSRCS += esp32s3_spiram.c
 

arch/xtensa/src/esp32s3/esp32s3_partition.h

@@ -0,0 +1,112 @@
+/****************************************************************************
+ * arch/xtensa/src/esp32s3/esp32s3_partition.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 __ARCH_XTENSA_SRC_ESP32S3S3_ESP32S3S3_PARTITION_H
+#define __ARCH_XTENSA_SRC_ESP32S3S3_ESP32S3S3_PARTITION_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <nuttx/mtd/mtd.h>
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: esp32s3_partition_init
+ *
+ * Description:
+ *   Initialize ESP32-S3 partition. Read partition information
+ *   and use these data for creating MTD.
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   0 if success or a negative value if fail.
+ *
+ ****************************************************************************/
+
+int esp32s3_partition_init(void);
+
+/****************************************************************************
+ * Name: esp32s3_partition_read
+ *
+ * Description:
+ *   Read data from SPI Flash at designated address.
+ *
+ * Input Parameters:
+ *   label  - Partition label
+ *   offset - Offset in SPI Flash
+ *   buf    - Data buffer pointer
+ *   size   - Data number
+ *
+ * Returned Value:
+ *   0 if success or a negative value if fail.
+ *
+ ****************************************************************************/
+
+int esp32s3_partition_read(const char *label, size_t offset, void *buf,
+                           size_t size);
+
+/****************************************************************************
+ * Name: esp32s3_partition_write
+ *
+ * Description:
+ *   Write data to SPI Flash at designated address.
+ *
+ * Input Parameters:
+ *   label  - Partition label
+ *   offset - Offset in SPI Flash
+ *   buf    - Data buffer pointer
+ *   size   - Data number
+ *
+ * Returned Value:
+ *   0 if success or a negative value if fail.
+ *
+ ****************************************************************************/
+
+int esp32s3_partition_write(const char *label, size_t offset, void *buf,
+                            size_t size);
+
+#ifdef __cplusplus
+}
+#endif
+#undef EXTERN
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ARCH_XTENSA_SRC_ESP32S3S3_ESP32S3S3_PARTITION_H */

boards/xtensa/esp32s3/esp32s3-devkit/src/esp32s3_bringup.c

@@ -90,6 +90,10 @@
 #  include "esp32s3_ledc.h"
 #endif
 
+#ifdef CONFIG_ESP32S3_PARTITION_TABLE
+#  include "esp32s3_partition.h"
+#endif
+
 #include "esp32s3-devkit.h"
 
 /****************************************************************************
@@ -166,6 +170,15 @@ int esp32s3_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_ESP32S3_PARTITION_TABLE
+  ret = esp32s3_partition_init();
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: Failed to initialize partition error=%d\n",
+             ret);
+    }
+#endif
+
 #ifdef CONFIG_ESP32S3_RT_TIMER
   ret = esp32s3_rt_timer_init();
   if (ret < 0)