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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/09/05 01:52:11 UTC
[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a diff in pull request #6944: boards/stm32h7: add support for mcuboot
xiaoxiang781216 commented on code in PR #6944:
URL: https://github.com/apache/incubator-nuttx/pull/6944#discussion_r962419646
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boards/arm/stm32h7/nucleo-h743zi/src/stm32_progmem.c:
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@@ -0,0 +1,265 @@
+/****************************************************************************
+ * boards/arm/stm32h7/nucleo-h743zi/src/stm32_progmem.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/mount.h>
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/progmem.h>
+#include <nuttx/drivers/drivers.h>
+#include <nuttx/fs/ioctl.h>
+#include <nuttx/kmalloc.h>
+#include <nuttx/mtd/mtd.h>
+#ifdef CONFIG_BCH
+#include <nuttx/drivers/drivers.h>
+#endif
+
+#include <stm32.h>
+#include "nucleo-h743zi.h"
+#include <stm32_flash.h>
+
+#ifdef HAVE_PROGMEM_CHARDEV
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define ARRAYSIZE(x) (sizeof((x)) / sizeof((x)[0]))
+
+#define PARTITION_LABEL_LEN 16
+
+/* Configuration ************************************************************/
+
+/* Make sure that support for MTD partitions is enabled */
+#ifdef CONFIG_MTD
+
+#ifndef CONFIG_MTD_PARTITION
+# error "CONFIG_MTD_PARTITION is required"
+#endif
+
+#endif
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+#if defined(CONFIG_STM32_PROGMEM_OTA_PARTITION)
+
+struct ota_partition_s
+{
+ uint32_t offset; /* Partition offset from the beginning of MTD */
+ uint32_t size; /* Partition size in bytes */
+ const char *devpath; /* Partition device path */
+};
+
+#endif
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+#if defined(CONFIG_STM32_PROGMEM_OTA_PARTITION)
+static struct mtd_dev_s *progmem_alloc_mtdpart(uint32_t mtd_offset,
+ uint32_t mtd_size);
+static int init_ota_partitions(void);
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static FAR struct mtd_dev_s *g_progmem_mtd;
+
+#if defined(CONFIG_STM32_PROGMEM_OTA_PARTITION)
+static const struct ota_partition_s g_ota_partition_table[] =
+{
+ {
+ .offset = CONFIG_STM32_OTA_PRIMARY_SLOT_OFFSET,
+ .size = CONFIG_STM32_OTA_SLOT_SIZE,
+ .devpath = CONFIG_STM32_OTA_PRIMARY_SLOT_DEVPATH
+ },
+ {
+ .offset = CONFIG_STM32_OTA_SECONDARY_SLOT_OFFSET,
+ .size = CONFIG_STM32_OTA_SLOT_SIZE,
+ .devpath = CONFIG_STM32_OTA_SECONDARY_SLOT_DEVPATH
+ },
+ {
+ .offset = CONFIG_STM32_OTA_SCRATCH_OFFSET,
+ .size = CONFIG_STM32_OTA_SCRATCH_SIZE,
+ .devpath = CONFIG_STM32_OTA_SCRATCH_DEVPATH
+ }
+};
+#endif
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+#if defined(CONFIG_STM32_PROGMEM_OTA_PARTITION)
+
+/****************************************************************************
+ * Name: sam_progmem_alloc_mtdpart
+ *
+ * Description:
+ * Allocate an MTD partition from FLASH.
+ *
+ * Input Parameters:
+ * mtd_offset - MTD Partition offset from the base address in FLASH.
+ * mtd_size - Size for the MTD partition.
+ *
+ * Returned Value:
+ * MTD partition data pointer on success, NULL on failure.
+ *
+ ****************************************************************************/
+
+static struct mtd_dev_s *progmem_alloc_mtdpart(uint32_t mtd_offset,
+ uint32_t mtd_size)
+{
+ uint32_t blocks;
+ ssize_t startblock;
+
+ ASSERT((mtd_offset % up_progmem_pagesize(0)) == 0);
+ ASSERT((mtd_size % up_progmem_pagesize(0)) == 0);
+
+ finfo("\tMTD offset = 0x%"PRIx32"\n", mtd_offset);
+ finfo("\tMTD size = 0x%"PRIx32"\n", mtd_size);
+
+ startblock = up_progmem_getpage(mtd_offset + up_progmem_getaddress(0));
+ if (startblock < 0)
+ {
+ return NULL;
+ }
+
+ blocks = mtd_size / up_progmem_pagesize(0);
+
+ return mtd_partition(g_progmem_mtd, startblock, blocks);
+}
+
+/****************************************************************************
+ * Name: init_ota_partitions
+ *
+ * Description:
+ * Initialize partitions that are dedicated to firmware OTA update.
+ *
+ * Input Parameters:
+ * None.
+ *
+ * Returned Value:
+ * Zero on success; a negated errno value on failure.
+ *
+ ****************************************************************************/
+
+static int init_ota_partitions(void)
+{
+ int i;
+ struct mtd_dev_s *mtd;
+ int ret = 0;
+ char path[PARTITION_LABEL_LEN + 1];
+
+ for (i = 0; i < ARRAYSIZE(g_ota_partition_table); ++i)
+ {
+ const struct ota_partition_s *part = &g_ota_partition_table[i];
+ mtd = progmem_alloc_mtdpart(part->offset, part->size);
+
+ strncpy(path, (char *)part->devpath, PARTITION_LABEL_LEN);
+ path[PARTITION_LABEL_LEN] = '\0';
+
+ finfo("INFO: [label]: %s\n", path);
+ finfo("INFO: [offset]: 0x%08" PRIx32 "\n", part->offset);
+ finfo("INFO: [size]: 0x%08" PRIx32 "\n", part->size);
+
+ if (!mtd)
+ {
+ ferr("ERROR: Failed to create MTD partition\n");
+ ret = -1;
+ }
+
+ ret = register_mtddriver(path, mtd, 0777, NULL);
+ if (ret < 0)
+ {
+ ferr("ERROR: Failed to register MTD @ %s\n", path);
+ ret = -1;
+ }
+ }
+
+ return ret;
+}
+#endif /* CONFIG_STM32_PROGMEM_OTA_PARTITION */
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: stm32_progmem_init
+ *
+ * Initialize Progmem 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 stm32_progmem_init(void)
+{
+ struct mtd_geometry_s geo;
+ int ret = 0;
+
+ g_progmem_mtd = progmem_initialize();
+ if (g_progmem_mtd == NULL)
+ {
+ ferr("ERROR: Failed to get progmem flash MTD\n");
+ ret = -EIO;
+ }
+
+ ret = MTD_IOCTL(g_progmem_mtd, MTDIOC_GEOMETRY, (unsigned long)&geo);
Review Comment:
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