113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/****************************************************************************
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* boards/sparc/bm3823/xx3823/src/bm3823_am29lv.c
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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 <sys/mount.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_MTD_AM29LV
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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 "xx3823.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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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_AM29LV 1
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#if !defined(CONFIG_MTD_AM29LV)
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# undef HAVE_AM29LV
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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_AM29LV
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#endif
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/* Can't support both FAT and SMARTFS */
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#if defined(CONFIG_FS_FAT) && defined(CONFIG_FS_SMARTFS)
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# warning "Can't support both FAT and SMARTFS -- using FAT"
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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: bm3823_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 bm3823_am29lv_initialize(int minor)
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{
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int ret;
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#ifdef HAVE_AM29LV
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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_XX3823_FLASH_PART_NAMES;
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#endif
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/* Now bind the SPI interface to the W25 SPI FLASH driver */
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mtd = am29lv_initialize();
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if (!mtd)
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{
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syslog(LOG_ERR, "ERROR: Failed to initialize AM29LV FLASH driver\n");
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return -ENODEV;
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}
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#endif /* HAVE_AM29LV */
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/* Create a RAM MTD device if configured */
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#if defined(CONFIG_RAMMTD) && defined(CONFIG_XX3823_RAMMTD)
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uint8_t *start = (uint8_t *)kmm_malloc(CONFIG_XX3823_RAMMTD_SIZE * 1024);
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mtd = rammtd_initialize(start, CONFIG_XX3823_RAMMTD_SIZE * 1024);
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mtd->ioctl(mtd, MTDIOC_BULKERASE, 0);
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#endif /* CONFIG_RAMMTD && CONFIG_XX3823_RAMMTD */
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return OK;
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}
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