db54331479
This is a supplement to the patch:1936126210a56b6d1b033d6d940669413dd6e1b0 Due to the automatic wrapping of MTD devices during the open() process, the legacy registration methods ftl_initialize() and bchdev_register() are no longer required for MTD device registration for user code. So we have adjusted the registration method for MTD devices in nuttx/boards, replacing the previous approach using ftl_initialize() with register_mtddriver().
156 lines
4.5 KiB
C
156 lines
4.5 KiB
C
/****************************************************************************
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* boards/arm/stm32/stm32f411-minimum/src/stm32_w25.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <debug.h>
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#ifdef CONFIG_STM32_SPI1
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# include <nuttx/spi/spi.h>
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# include <nuttx/mtd/mtd.h>
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# include <nuttx/fs/smart.h>
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# include <nuttx/mtd/configdata.h>
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#endif
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#include "stm32_spi.h"
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#include "stm32f411-minimum.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Debug ********************************************************************/
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/* Non-standard debug that may be enabled just for testing the watchdog
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* timer
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*/
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#define W25_SPI_PORT 1
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/* Configuration ************************************************************/
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/* Can't support the W25 device if it SPI1 or W25 support is not enabled */
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#define HAVE_W25 1
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#if !defined(CONFIG_STM32_SPI1) || !defined(CONFIG_MTD_W25)
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# undef HAVE_W25
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#endif
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/* Can't support W25 features if mountpoints are disabled */
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#if defined(CONFIG_DISABLE_MOUNTPOINT)
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# undef HAVE_W25
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_w25initialize
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*
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* Description:
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* Initialize and register the W25 FLASH file system.
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*
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****************************************************************************/
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int stm32_w25initialize(int minor)
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{
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int ret;
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#ifdef HAVE_W25
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struct spi_dev_s *spi;
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struct mtd_dev_s *mtd;
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struct mtd_geometry_s geo;
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#if defined(CONFIG_MTD_PARTITION_NAMES)
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const char *partname = CONFIG_STM32F411MINIMUM_FLASH_PART_NAMES;
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#endif
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/* Get the SPI port */
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spi = stm32_spibus_initialize(W25_SPI_PORT);
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if (!spi)
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{
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syslog(LOG_ERR, "ERROR: Failed to initialize SPI port %d\n",
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W25_SPI_PORT);
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return -ENODEV;
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}
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/* Raise SPI frequency from default 400kHz to something usable
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* SPI1 uses PCLK2 of 96MHz with DIV2 = 48Mbps max
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* W25Q64 requires more dummy clocks above 26MHz
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*/
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SPI_SETFREQUENCY(spi, 24000000);
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/* Now bind the SPI interface to the W25 SPI FLASH driver */
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mtd = w25_initialize(spi);
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if (!mtd)
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{
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syslog(LOG_ERR, "ERROR: Failed to bind SPI port %d to the Winbond"
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"W25 FLASH driver\n", W25_SPI_PORT);
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return -ENODEV;
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}
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#ifndef CONFIG_FS_SMARTFS
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/* Register the MTD driver */
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char path[32];
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snprintf(path, sizeof(path), "/dev/mtdblock%d", minor);
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ret = register_mtddriver(path, mtd, 0755, NULL);
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if (ret < 0)
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{
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syslog(LOG_ERR,
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"ERROR: Failed to register the MTD driver %s, ret %d\n",
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path, ret);
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return ret;
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}
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#else
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/* Initialize to provide SMARTFS on the MTD interface */
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/* Get the geometry of the FLASH device */
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ret = mtd->ioctl(mtd, MTDIOC_GEOMETRY, (unsigned long)((uintptr_t)&geo));
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: mtd->ioctl failed: %d\n", ret);
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return ret;
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}
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/* Configure the device with no partition support */
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smart_initialize(CONFIG_STM32F411MINIMUM_FLASH_MINOR, mtd, NULL);
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#endif /* CONFIG_FS_SMARTFS */
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#endif /* HAVE_W25 */
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return OK;
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}
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