[DeviceDrivers] Remove backup mtd code

7 files changed, 0 insertions, 1210 deletions

diff --git a/components/drivers/Kconfig b/components/drivers/Kconfig
index 43729875b4..d4f9f5c506 100755
--- a/components/drivers/Kconfig
+++ b/components/drivers/Kconfig
@@ -119,20 +119,6 @@ config RT_USING_MTD_NAND
         default n
     endif
 
-config RT_USING_MTD
-    bool "Using Memory Technology Device (MTD)"
-    default n
-
-    if RT_USING_MTD
-    config MTD_USING_NOR
-        bool "Using MTD Nor Flash device"
-        default n
-
-    config MTD_USING_NAND
-        bool "Using MTD Nand Flash device"
-        default n
-    endif
-
 config RT_USING_PM
     bool "Using Power Management device drivers"
     default n
diff --git a/components/drivers/include/drivers/mtd.h b/components/drivers/include/drivers/mtd.h
deleted file mode 100644
index fb7ea4389d..0000000000
--- a/components/drivers/include/drivers/mtd.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author        Notes
-   2018-09-10     heyuanjie87   first version
-
- */
-
-#ifndef __MTD_H__
-#define __MTD_H__
-
-#include <rtthread.h>
-#include <stddef.h>
-#include <stdint.h>
-
-#define MTD_TYPE_NOR    1
-#define MTD_TYPE_NAND   2
-
- /**
-  * MTD operation modes
-  *
-  * @MTD_OPM_PLACE_OOB:	OOB data are placed at the given offset (default)
-  * @MTD_OPM_AUTO_OOB:	OOB data are automatically placed at the free areas
-  * @MTD_OPM_RAW:	    data are transferred as-is, with no error correction;
-  */
-enum mtd_opm
-{
-    MTD_OPM_PLACE_OOB = 0,
-    MTD_OPM_AUTO_OOB = 1,
-    MTD_OPM_RAW = 2,
-};
-
-#ifndef loff_t
-typedef long loff_t;
-#endif
-
-struct mtd_oob_region
-{
-    uint8_t offset;
-    uint8_t length;
-};
-
-typedef struct mtd_info
-{
-    struct rt_device parent;
-
-    const struct mtd_ops *ops;
-
-    uint16_t oob_size;
-    uint16_t sector_size;   /* Minimal writable flash unit size */
-    uint32_t block_size:28; /* Erase size for the device */
-    uint32_t type:4;
-
-    size_t size;    /* Total size of the MTD */
-    loff_t offset;  /* At which this MTD starts, from the beginning of the MEMORY */
-    struct mtd_info *master;
-
-    void *priv;
-}rt_mtd_t;
-
-struct mtd_io_desc
-{
-    uint8_t mode;      /* operation mode(enum mtd_opm) */
-    uint8_t ooblen;    /* number of oob bytes to write/read */
-    uint8_t oobretlen; /* number of oob bytes written/read */
-    uint8_t ooboffs;   /* offset in the oob area  */
-    uint8_t *oobbuf;
-
-    size_t  datlen;    /* number of data bytes to write/read */
-    size_t  datretlen; /* number of data bytes written/read */
-    uint8_t *datbuf;   /* if NULL only oob are read/written */
-};
-
-struct mtd_ops
-{
-    int(*erase)(rt_mtd_t *mtd, loff_t addr, size_t len);    /* return 0 if success */
-    int(*read) (rt_mtd_t *mtd, loff_t from, struct mtd_io_desc *ops); /* return 0 if success */
-    int(*write) (rt_mtd_t *mtd, loff_t to, struct mtd_io_desc *ops);  /* return 0 if success */
-    int(*isbad) (rt_mtd_t *mtd, uint32_t block);    /* return 1 if bad, 0 not bad */
-    int(*markbad) (rt_mtd_t *mtd, uint32_t block);  /* return 0 if success */
-};
-
-struct mtd_part
-{
-    const char *name;           /* name of the MTD partion */
-    loff_t offset;              /* start addr of partion */
-    size_t size;                /* size of partion */
-};
-
-int rt_mtd_erase(rt_mtd_t *mtd, loff_t addr, size_t size);
-int rt_mtd_block_erase(rt_mtd_t *mtd, uint32_t block);
-int rt_mtd_read_oob(rt_mtd_t *mtd, loff_t from, struct mtd_io_desc *desc);
-int rt_mtd_write_oob(rt_mtd_t *mtd, loff_t to, struct mtd_io_desc *desc);
-int rt_mtd_read(rt_mtd_t *mtd, loff_t from, uint8_t *buf, size_t len);
-int rt_mtd_write(rt_mtd_t *mtd, loff_t to, const uint8_t *buf, size_t len);
-int rt_mtd_block_markbad(rt_mtd_t *mtd, uint32_t block);
-int rt_mtd_block_isbad(rt_mtd_t *mtd, uint32_t block);
-
-rt_mtd_t* rt_mtd_get(const char *name);
-int rt_mtd_register(rt_mtd_t *master, const struct mtd_part *parts, int np);
-
-#endif
diff --git a/components/drivers/include/drivers/mtdnand.h b/components/drivers/include/drivers/mtdnand.h
deleted file mode 100644
index 2e836cb2fb..0000000000
--- a/components/drivers/include/drivers/mtdnand.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author        Notes
-   2018-09-10     heyuanjie87   first version
-
- */
-
-#ifndef _MTDNAND_H_
-#define _MTDNAND_H_
-
-#include "mtd.h"
-
- /* Status bits */
-#define NAND_STATUS_FAIL        0x01
-#define NAND_STATUS_FAIL_N1     0x02
-#define NAND_STATUS_WP          0x80
-
-typedef enum
-{
-    NAND_CMD_PAGE_RD,   /* read data to chip's page buffer,do WaitBusy after this cmd in low driver */
-    NAND_CMD_PAGE_WR0,  /* write data to chip's page buffer */
-    NAND_CMD_PAGE_WR1,  /* do flash programe */
-    NAND_CMD_BLK_ERASE, /* erase block */
-    NAND_CMD_ECC_EN,    /* enable gen HWECC */
-    NAND_CMD_ECC_DIS    /* disable gen HWECC */
-} nand_cmd_t;
-
-typedef enum
-{
-    NAND_ECCM_NONE,
-    NAND_ECCM_HW,
-} nand_eccmode_t;
-
-struct nand_chip;
-struct nand_ops;
-
-/**
-* struct nand_buffers - buffer structure for read/write
-* @ecccalc:    buffer pointer for calculated ECC, size is oobsize.
-* @ecccode:    buffer pointer for ECC read from flash, size is oobsize.
-*
-*/
-struct nand_buffers
-{
-    uint8_t *ecccalc;
-    uint8_t *ecccode;
-};
-
-struct nand_ecc
-{
-    uint8_t mode;    /* nand_eccmode_t */
-    uint8_t bytes;   /* gen ecc bytes per ecc step(usually 3) */
-    uint16_t stepsize:12; /* min 256 */
-    uint16_t _step:4;     /*  */
-
-    /* driver must set the two interface if HWECC */
-    void (*calculate)(struct nand_chip *chip, const uint8_t *dat, uint8_t *ecc_code);
-    /* return max bit flips if can't correct,return -1 ECC is error(0 success) */
-    int(*correct)(struct nand_chip *chip, uint8_t *dat, uint8_t *read_ecc, uint8_t *calc_ecc);
-    /* ignore if NONECC */
-    const struct mtd_oob_region *layout;
-};
-
-typedef struct nand_chip
-{
-    rt_mtd_t parent;
-
-    /* driver must init these */
-    const struct nand_ops *ops;
-    struct nand_ecc ecc;
-    const struct mtd_oob_region *freelayout;
-
-    /* driver do not touch */
-    struct nand_buffers buffers;
-    uint8_t *oob_poi;
-    uint8_t *pagebuf;
-    uint32_t size;
-    uint16_t oobsize;
-    uint8_t pages_pb;
-    uint16_t page_size;
-    int(*read_page)(struct nand_chip *chip, uint8_t *buf, int oob_required, int page);
-    int(*write_page)(struct nand_chip *chip, const uint8_t *buf, int oob_required, int page);
-}rt_nand_t;
-
-struct nand_ops
-{
-    int(*cmdfunc)(rt_nand_t *nand, int cmd, int page, int offset); /* send nand operation cmd, return Status bits(0 success),
-                                                                      if nand is busy please wait in low driver */
-    int(*read_buf)(rt_nand_t *nand, uint8_t *buf, int len);        /* read data from nand chip's page buffer */
-    int(*write_buf)(rt_nand_t *nand, const  uint8_t *buf, int len);/* write data to nand chip's page buffer */
-    int(*isbad)(rt_nand_t *nand, uint32_t blk);   /* if NULL OOB[0] used as bad mark(not 0xff is bad) */
-    int(*markbad)(rt_nand_t *nand, uint32_t blk); /* if NULL OOB[0] used as bad mark(set to 0x00) */
-};
-
-int rt_mtd_nand_init(rt_nand_t *nand, int blk_size, int page_size, int oob_size);
-
-#endif /* MTD_NAND_H_ */
diff --git a/components/drivers/include/drivers/mtdnor.h b/components/drivers/include/drivers/mtdnor.h
deleted file mode 100644
index ccb7466b4b..0000000000
--- a/components/drivers/include/drivers/mtdnor.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author        Notes
-   2018-09-10     heyuanjie87   first version
-
- */
-
-#ifndef __MTDNOR_H__
-#define __MTDNOR_H__
-
-#include <drivers/mtd.h>
-
-struct nor_ops;
-
-typedef struct
-{
-    rt_mtd_t parent;
-
-    const struct nor_ops *ops; /* operations interface */
-}rt_nor_t;
-
-struct nor_ops
-{
-    int (*erase)(rt_nor_t *nor, loff_t addr, size_t len);                     /* return success erased len or error code */
-    int (*read)(rt_nor_t *nor, loff_t addr, uint8_t *buf, size_t len);        /* return success data size or error code */
-    int (*write)(rt_nor_t *nor, loff_t addr, const uint8_t *buf, size_t len); /* return success data size or error code */
-};
-
-int rt_mtd_nor_init(rt_nor_t *nor, int blksize);
-
-#endif
diff --git a/components/drivers/mtd/mtd.c b/components/drivers/mtd/mtd.c
deleted file mode 100644
index 3e7b4f2b54..0000000000
--- a/components/drivers/mtd/mtd.c
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author        Notes
-   2018-09-10     heyuanjie87   first version
-
- */
-
-#include <drivers/mtd.h>
-
-static rt_mtd_t* mtd_part_alloc(rt_mtd_t *master, const struct mtd_part *part)
-{
-    rt_mtd_t *slave;
-
-    slave = rt_malloc(sizeof(rt_mtd_t));
-    if (slave == RT_NULL)
-        goto out;
-
-    slave->master = master;
-
-    *slave = *master;
-    slave->size = part->size;
-    slave->offset = part->offset;
-
-out:
-
-    return slave;
-}
-
-rt_mtd_t* rt_mtd_get(const char *name)
-{
-    rt_mtd_t *mtd;
-
-    mtd = (rt_mtd_t *)rt_device_find(name);
-    if (mtd == RT_NULL)
-        return RT_NULL;
-
-    if (mtd->parent.type != RT_Device_Class_MTD)
-        return RT_NULL;
-
-    return mtd;
-}
-
-/*
- * Register MTD driver
- *
- * @parts partion description
- * @np number of partitions
- * @return number of unregistered partitions
- *
-*/
-int rt_mtd_register(rt_mtd_t *master, const struct mtd_part *parts, int np)
-{
-    int ret;
-    rt_mtd_t *slave;
-
-    master->master = master;
-    master->parent.type = RT_Device_Class_MTD;
-
-    if (np > 0)
-    {
-        master->offset = parts->offset;
-        master->size = parts->size;
-
-        ret = rt_device_register((rt_device_t)master, parts->name, 0);
-        if (ret != 0)
-            goto _out;
-
-        np --;
-        parts ++;
-    }
-
-    while (np > 0)
-    {
-        slave = mtd_part_alloc(master, parts);
-        if (!slave)
-            break;
-        ret = rt_device_register((rt_device_t)slave, parts->name, 0);
-        if (ret)
-            break;
-        parts ++;
-        np --;
-    }
-
-_out:
-    return np;
-}
-
-int rt_mtd_block_erase(rt_mtd_t *mtd, uint32_t block)
-{
-    uint32_t total_blks;
-    loff_t addr;
-
-    total_blks = mtd->size/mtd->block_size;
-    if (block >= total_blks)
-        return -EINVAL;
-    addr = mtd->offset + mtd->block_size * block;
-
-    return mtd->ops->erase(mtd->master, addr, mtd->block_size);
-}
-
-int rt_mtd_block_isbad(rt_mtd_t *mtd, uint32_t block)
-{
-    uint32_t total_blks, offset_blk;
-
-    if (!mtd->ops->isbad)
-        return 0;
-
-    total_blks = mtd->size / mtd->block_size;
-    if (block >= total_blks)
-        return -EINVAL;
-    offset_blk = mtd->offset / mtd->block_size;
-
-    return mtd->ops->isbad(mtd->master, block + offset_blk);
-}
-
-int rt_mtd_block_markbad(rt_mtd_t *mtd, uint32_t block)
-{
-    uint32_t total_blks, offset_blk;
-
-    if (!mtd->ops->markbad)
-        return -EOPNOTSUPP;
-
-    total_blks = mtd->size / mtd->block_size;
-    if (block >= total_blks)
-        return -EINVAL;
-    offset_blk = mtd->offset / mtd->block_size;
-
-    return mtd->ops->markbad(mtd->master, block + offset_blk);
-}
-
-int rt_mtd_erase(rt_mtd_t *mtd, loff_t addr, size_t size)
-{
-    if (addr > mtd->size || (addr + size) > mtd->size)
-        return -EINVAL;
-    addr += mtd->offset;
-
-    return mtd->ops->erase(mtd->master, addr, size);
-}
-
-/*
-* Read data only
-*
-* @from offset to read from
-* @return success size or error code
-*/
-int rt_mtd_read(rt_mtd_t *mtd, loff_t from, uint8_t *buf, size_t len)
-{
-    int ret;
-    struct mtd_io_desc desc = {0};
-
-    if (from < 0 || from >= (loff_t)mtd->size || len > mtd->size - from)
-        return -EINVAL;
-    if (!len)
-        return 0;
-
-    desc.datbuf = buf;
-    desc.datlen = len;
-    ret = mtd->ops->read(mtd->master, from + mtd->offset, &desc);
-    if (ret)
-        return ret;
-
-    return desc.datretlen;
-}
-
-/**
-* Write data only
-*
-* @to offset to write from
-* @return success size or error code
-*/
-int rt_mtd_write(rt_mtd_t *mtd, loff_t to, const uint8_t *buf, size_t len)
-{
-    int ret;
-    struct mtd_io_desc desc = {0};
-
-    if (to < 0 || to >= (loff_t)mtd->size || len > mtd->size - to)
-        return -EINVAL;
-    if (!mtd->ops->write)
-        return -EROFS;
-    if (!len)
-        return 0;
-
-    desc.datbuf = (uint8_t*)buf;
-    desc.datlen = len;
-    ret = mtd->ops->write(mtd->master, to + mtd->offset, &desc);
-    if (ret)
-        return ret;
-
-    return desc.datretlen;
-}
-
-/**
-* Read data and/or out-of-band
-*
-* @from offset to read from
-* @desc sector operation description structure
-* @return error code, 0 success
-*/
-int rt_mtd_read_oob(rt_mtd_t *mtd, loff_t from, struct mtd_io_desc *desc)
-{
-    desc->datretlen = 0;
-    desc->oobretlen = 0;
-
-    if (from < 0 || from >= (loff_t)mtd->size)
-        return -EINVAL;
-
-    if (desc->datbuf && (desc->datlen > (mtd->size - from)))
-        return -EINVAL;
-
-    return mtd->ops->read(mtd->master, from + mtd->offset, desc);
-}
-
-/**
-* Write data and/or out-of-band
-*
-* @to offset to read from
-* @desc sector operation description structure
-* @return error code, 0 success
-*/
-int rt_mtd_write_oob(rt_mtd_t *mtd, loff_t to, struct mtd_io_desc *desc)
-{
-    desc->datretlen = 0;
-    desc->oobretlen = 0;
-
-    if (to < 0 || to >= (loff_t)mtd->size)
-        return -EINVAL;
-
-    if (desc->datbuf && (desc->datlen >(mtd->size - to)))
-        return -EINVAL;
-
-    return mtd->ops->write(mtd->master, to + mtd->offset, desc);
-}
diff --git a/components/drivers/mtd/mtdnand.c b/components/drivers/mtd/mtdnand.c
deleted file mode 100644
index 50012219fb..0000000000
--- a/components/drivers/mtd/mtdnand.c
+++ /dev/null
@@ -1,645 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author        Notes
- * 2018-09-10     heyuanjie87   first version
- */
-
-#include <rtdevice.h>
-
-#define MTDTONAND(x)    ((rt_nand_t*)(x))
-#define NOTALIGNED(x)   ((x & (chip->page_size - 1)) != 0)
-#ifndef min
-#define min(a,b) (a>b? b:a)
-#endif
-
-static uint8_t *nand_fill_oob(rt_nand_t *chip, uint8_t *oob, size_t len, struct mtd_io_desc *desc)
-{
-    rt_memset(chip->oob_poi, 0xff, chip->oobsize);
-
-    switch (desc->mode)
-    {
-    case MTD_OPM_PLACE_OOB:
-    case MTD_OPM_RAW:
-        rt_memcpy(chip->oob_poi + desc->ooboffs, oob, len);
-        return oob + len;
-
-    case MTD_OPM_AUTO_OOB:
-    {
-        const struct mtd_oob_region *free = chip->freelayout;
-        uint32_t boffs;
-        size_t bytes;
-
-        bytes = min(len, free->length);
-        boffs = free->offset;
-
-        rt_memcpy(chip->oob_poi + boffs, oob, bytes);
-        oob += bytes;
-
-        return oob;
-    }
-    }
-
-    return NULL;
-}
-
-static uint8_t *nand_transfer_oob(rt_nand_t *chip, uint8_t *oob, struct mtd_io_desc *desc, size_t len)
-{
-    switch (desc->mode)
-    {
-    case MTD_OPM_PLACE_OOB:
-    case MTD_OPM_RAW:
-        rt_memcpy(oob, chip->oob_poi + desc->ooboffs, len);
-        return oob + len;
-
-    case MTD_OPM_AUTO_OOB:
-    {
-        struct mtd_oob_region *free = (struct mtd_oob_region *)chip->freelayout;
-        uint32_t boffs = 0, roffs = desc->ooboffs;
-        size_t bytes = 0;
-
-        for (; free->length && len; free++, len -= bytes)
-        {
-            /* Read request not from offset 0? */
-            if (roffs)
-            {
-                if (roffs >= free->length)
-                {
-                    roffs -= free->length;
-                    continue;
-                }
-                boffs = free->offset + roffs;
-                bytes = min(len, (free->length - roffs));
-                roffs = 0;
-            }
-            else
-            {
-                bytes = min(len, free->length);
-                boffs = free->offset;
-            }
-
-            rt_memcpy(oob, chip->oob_poi + boffs, bytes);
-            oob += bytes;
-        }
-
-        return oob;
-    }
-    }
-
-    return NULL;
-}
-
-static int nand_read_page_raw(rt_nand_t *chip, uint8_t *buf, int oob_required, int page)
-{
-    chip->ops->read_buf(chip, buf, chip->page_size);
-
-    if (oob_required)
-        chip->ops->read_buf(chip, chip->oob_poi, chip->oobsize);
-
-    return 0;
-}
-
-static int nand_write_page_raw(rt_nand_t *chip, const uint8_t *buf, int oob_required, int page)
-{
-    chip->ops->write_buf(chip, buf, chip->page_size);
-
-    if (oob_required)
-        chip->ops->write_buf(chip, chip->oob_poi, chip->oobsize);
-
-    return 0;
-}
-
-static int nand_write_page_hwecc(rt_nand_t *chip, const uint8_t *buf, int oob_required, int page)
-{
-    uint16_t i;
-    uint16_t stepsize = chip->ecc.stepsize;
-    uint16_t eccbytes = chip->ecc.bytes;
-    uint16_t eccsteps = chip->ecc._step;
-    uint16_t eccpos = chip->ecc.layout->offset;
-    uint8_t *ecc_calc = chip->buffers.ecccalc;
-    const uint8_t *p = buf;
-
-    for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += stepsize)
-    {
-        chip->ops->cmdfunc(chip, NAND_CMD_ECC_EN, 0, 0);
-        chip->ops->write_buf(chip, p, stepsize);
-        chip->ecc.calculate(chip, p, &ecc_calc[i]);
-        chip->ops->cmdfunc(chip, NAND_CMD_ECC_DIS, 0, 0);
-    }
-
-    rt_memcpy(&chip->oob_poi[eccpos], ecc_calc, chip->ecc.layout->length);
-
-    chip->ops->write_buf(chip, chip->oob_poi, chip->oobsize);
-
-    return 0;
-}
-
-static int nand_read_page_hwecc(rt_nand_t *chip, uint8_t *buf, int oob_required, int page)
-{
-    uint16_t i;
-    uint16_t eccsize = chip->ecc.stepsize;
-    uint16_t eccbytes = chip->ecc.bytes;
-    uint16_t eccsteps = chip->ecc._step;
-    uint16_t eccpos = chip->ecc.layout->offset;
-    uint8_t *p = buf;
-    uint8_t *ecc_calc = chip->buffers.ecccalc;
-    uint8_t *ecc_code = chip->buffers.ecccode;
-    int ret = 0;
-
-    for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
-    {
-        chip->ops->cmdfunc(chip, NAND_CMD_ECC_EN, 0, 0);
-        chip->ops->read_buf(chip, p, eccsize);
-        chip->ecc.calculate(chip, p, &ecc_calc[i]);
-        chip->ops->cmdfunc(chip, NAND_CMD_ECC_DIS, 0, 0);
-    }
-
-    chip->ops->read_buf(chip, chip->oob_poi, chip->oobsize);
-    rt_memcpy(ecc_code, &chip->oob_poi[eccpos], chip->ecc.layout->length);
-
-    eccsteps = chip->ecc._step;
-    p = buf;
-
-    for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
-    {
-        int stat;
-
-        stat = chip->ecc.correct(chip, p, &ecc_code[i], &ecc_calc[i]);
-        if (stat != 0)
-            ret = -1;
-    }
-
-    return ret;
-}
-
-static int nand_write_page(rt_nand_t *chip, const uint8_t *buf,
-    int oob_required, int page, int raw)
-{
-    int status;
-
-    chip->ops->cmdfunc(chip, NAND_CMD_PAGE_WR0, page, 0x00);
-
-    if (raw)
-    {
-        nand_write_page_raw(chip, buf, oob_required, page);
-    }
-    else
-    {
-        chip->write_page(chip, buf, oob_required, page);
-    }
-
-    status = chip->ops->cmdfunc(chip, NAND_CMD_PAGE_WR1, -1, -1);
-
-    return status;
-}
-
-static int nand_do_read_desc(rt_nand_t *chip, loff_t from, struct mtd_io_desc *desc)
-{
-    int page, bytes;
-    char oob_required;
-    char ecc_fail = 0;
-    int ret = 0;
-    uint32_t readlen = desc->datlen;
-    uint16_t oobreadlen = desc->ooblen;
-    uint16_t max_oobsize = desc->mode == MTD_OPM_AUTO_OOB ?
-        chip->freelayout->length : chip->oobsize;
-
-    uint8_t *oob, *buf, *notalign = 0;
-
-    /* Reject reads, which are not page aligned */
-    if (NOTALIGNED(from))
-    {
-        return -EINVAL;
-    }
-
-    buf = desc->datbuf;
-    if (NOTALIGNED(desc->datlen) && !chip->pagebuf)
-    {
-        chip->pagebuf = rt_malloc(chip->page_size);
-         if (!chip->pagebuf)
-             return -ENOMEM;
-    }
-
-    page = (int)(from / chip->page_size);
-
-    oob = desc->oobbuf;
-    oob_required = oob ? 1 : 0;
-
-    while (1)
-    {
-        bytes = min(chip->page_size, readlen);
-
-        chip->ops->cmdfunc(chip, NAND_CMD_PAGE_RD, page, 0x00);
-        if (NOTALIGNED(bytes))
-        {
-            notalign = buf;
-            buf = chip->pagebuf;
-        }
-        /*
-        * Now read the page into the buffer.  Absent an error,
-        * the read methods return max bitflips per ecc step.
-        */
-        if (desc->mode == MTD_OPM_RAW)
-        {
-            ret = nand_read_page_raw(chip, buf, oob_required, page);
-        }
-        else
-        {
-            ret = chip->read_page(chip, buf, oob_required, page);
-        }
-
-        if (ret != 0)
-        {
-            ret = -EBADMSG;
-            break;
-        }
-
-        if (oob)
-        {
-            int toread = min(oobreadlen, max_oobsize);
-
-            if (toread)
-            {
-                oob = nand_transfer_oob(chip, oob, desc, toread);
-                oobreadlen -= toread;
-            }
-        }
-
-        if (notalign)
-        {
-            rt_memcpy(notalign, buf, bytes);
-        }
-
-        buf += bytes;
-        readlen -= bytes;
-
-        if (!readlen)
-            break;
-
-        page++;
-    }
-
-    desc->datretlen = desc->datlen - (size_t)readlen;
-    if (oob)
-        desc->oobretlen = desc->ooblen - oobreadlen;
-
-    return ret;
-}
-
-/*
- * write with ECC
- *
-*/
-static int nand_do_write_desc(rt_nand_t *chip, loff_t to, struct mtd_io_desc *desc)
-{
-    int page;
-    uint16_t writelen = desc->datlen;
-    uint16_t oob_required = desc->oobbuf ? 1 : 0;
-    uint16_t oobwritelen = desc->ooblen;
-    uint16_t oobmaxlen = desc->mode == MTD_OPM_AUTO_OOB ?
-        chip->freelayout->length : chip->oobsize;
-
-    uint8_t *oob = desc->oobbuf;
-    uint8_t *buf = desc->datbuf;
-    int ret;
-
-    if (!writelen)
-        return 0;
-
-    /* Reject writes, which are not page aligned */
-    if (NOTALIGNED(to))
-    {
-        return -EINVAL;
-    }
-
-    page = (int)(to / chip->page_size);
-
-    /* Don't allow multipage oob writes with offset */
-    if (oob && desc->ooboffs && (desc->ooboffs + desc->ooblen > oobmaxlen))
-    {
-        ret = -EINVAL;
-        goto err_out;
-    }
-
-    if (NOTALIGNED(desc->datlen) && !chip->pagebuf)
-    {
-        chip->pagebuf = rt_malloc(chip->page_size);
-        if (!chip->pagebuf)
-            return -ENOMEM;
-    }
-
-    while (1)
-    {
-        uint16_t bytes = min(chip->page_size, writelen);
-
-        if (oob)
-        {
-            size_t len = min(oobwritelen, oobmaxlen);
-            oob = nand_fill_oob(chip, oob, len, desc);
-            oobwritelen -= len;
-        }
-        else
-        {
-            /* We still need to erase leftover OOB data */
-            rt_memset(chip->oob_poi, 0xff, chip->oobsize);
-        }
-
-        if (NOTALIGNED(bytes))
-        {
-            uint8_t *dbtmp = buf;
-            buf = chip->pagebuf;
-            rt_memset(&buf[bytes], 0xff, chip->page_size - bytes);
-            rt_memcpy(buf, dbtmp, bytes);
-        }
-        ret = nand_write_page(chip, buf, oob_required, page, (desc->mode == MTD_OPM_RAW));
-        if (ret)
-            break;
-
-        writelen -= bytes;
-        if (!writelen)
-            break;
-
-        buf += bytes;
-        page++;
-    }
-
-    desc->datretlen = desc->datlen - writelen;
-    if (oob)
-        desc->oobretlen = desc->ooblen;
-
-err_out:
-
-    return ret;
-}
-
-static int nand_read_oob_std(rt_nand_t *chip, int page)
-{
-    chip->ops->cmdfunc(chip, NAND_CMD_PAGE_RD, page, chip->page_size);
-    chip->ops->read_buf(chip, chip->oob_poi, chip->oobsize);
-
-    return 0;
-}
-
-/*
- * read one page of OOB
-*/
-static int nand_only_read_oob(rt_nand_t *chip, loff_t from, struct mtd_io_desc *desc)
-{
-    int page;
-    int readlen = desc->ooblen;
-    int len;
-    uint8_t *buf = desc->oobbuf;
-    int ret = 0;
-
-    if (desc->mode == MTD_OPM_AUTO_OOB)
-        len = chip->freelayout->length;
-    else
-        len = chip->oobsize;
-
-    if (desc->ooboffs >= len) //attempt to start read outside oob
-    {
-        return -EINVAL;
-    }
-
-    page = (int)(from / chip->page_size);
-
-    ret = nand_read_oob_std(chip, page);
-    if (ret == 0)
-    {
-        len = min(len, readlen);
-        buf = nand_transfer_oob(chip, buf, desc, len);
-        desc->oobretlen = len;
-    }
-
-    return ret;
-}
-
-static int nand_write_oob_std(rt_nand_t *chip, int page)
-{
-    int status;
-
-    chip->ops->cmdfunc(chip, NAND_CMD_PAGE_WR0, page, chip->page_size);
-    chip->ops->write_buf(chip, chip->oob_poi, chip->oobsize);
-    /* Send command to program the OOB data */
-    status = chip->ops->cmdfunc(chip, NAND_CMD_PAGE_WR1, -1, -1);
-
-    return status & NAND_STATUS_FAIL ? -EIO : 0;
-}
-
-static int nand_only_write_oob(rt_nand_t *chip, loff_t to, struct mtd_io_desc *desc)
-{
-    int page, ret, len;
-
-    if (desc->mode == MTD_OPM_AUTO_OOB)
-        len = chip->freelayout->length;
-    else
-        len = chip->oobsize;
-
-    /* Do not allow write past end of page */
-    if ((desc->ooboffs + desc->ooblen) > len)
-    {
-        return -EINVAL;
-    }
-
-    if (desc->ooblen == 0)
-    {
-        return -EINVAL;
-    }
-
-    /* get page */
-    page = (int)(to / chip->page_size);
-
-    nand_fill_oob(chip, desc->oobbuf, desc->ooblen, desc);
-
-    ret = nand_write_oob_std(chip, page);
-    if (ret == 0)
-        desc->oobretlen = len;
-
-    return ret;
-}
-
-static int nand_erase(rt_mtd_t *mtd, loff_t addr, size_t size)
-{
-    rt_nand_t *chip;
-    int status;
-    int page;
-    uint32_t blksize;
-
-    chip = MTDTONAND(mtd);
-    blksize = mtd->block_size;
-    page = addr / chip->page_size;
-
-    while (size >= blksize)
-    {
-        status = chip->ops->cmdfunc(chip, NAND_CMD_BLK_ERASE, page, 0);
-        if (status & NAND_STATUS_FAIL)
-        {
-            break;
-        }
-        size -= blksize;
-        page += chip->pages_pb;
-    }
-
-    return size;
-}
-
-static int nand_read(rt_mtd_t *mtd, loff_t from, struct mtd_io_desc *desc)
-{
-    int ret = -ENOTSUP;
-    rt_nand_t *chip;
-
-    chip = MTDTONAND(mtd);
-
-    switch (desc->mode)
-    {
-    case MTD_OPM_PLACE_OOB:
-    case MTD_OPM_AUTO_OOB:
-    case MTD_OPM_RAW:
-        break;
-
-    default:
-        goto out;
-    }
-
-    if (!desc->datbuf || !desc->datlen)
-        ret = nand_only_read_oob(chip, from, desc);
-    else
-        ret = nand_do_read_desc(chip, from, desc);
-
-out:
-
-    return ret;
-}
-
-static int nand_write(rt_mtd_t *mtd, loff_t to, struct mtd_io_desc *desc)
-{
-    int ret = -ENOTSUP;
-    rt_nand_t *chip;
-
-    chip = MTDTONAND(mtd);
-
-    switch (desc->mode)
-    {
-    case MTD_OPM_PLACE_OOB:
-    case MTD_OPM_AUTO_OOB:
-    case MTD_OPM_RAW:
-        break;
-
-    default:
-        goto out;
-    }
-
-    if (!desc->datbuf || !desc->datlen)
-        ret = nand_only_write_oob(chip, to, desc);
-    else
-        ret = nand_do_write_desc(chip, to, desc);
-
-out:
-
-    return ret;
-}
-
-static int nand_block_isbad(rt_mtd_t *mtd, uint32_t blk)
-{
-    int ret;
-    rt_nand_t *chip = MTDTONAND(mtd);
-
-    if (chip->ops->isbad)
-    {
-        ret = chip->ops->isbad(chip, blk);
-    }
-    else
-    {
-        int page;
-
-        page = blk * chip->pages_pb;
-        nand_read_oob_std(chip, page);
-        ret = chip->oob_poi[0] != 0xFF;
-    }
-
-    return ret;
-}
-
-static int nand_block_markbad(rt_mtd_t *mtd, uint32_t blk)
-{
-    int ret;
-    rt_nand_t *chip;
-
-    chip = MTDTONAND(mtd);
-
-    if (chip->ops->markbad)
-    {
-        ret = chip->ops->markbad(chip, blk);
-    }
-    else
-    {
-        int page;
-
-        page = blk * chip->pages_pb;
-        rt_memset(chip->oob_poi, 0xff, chip->oobsize);
-        chip->oob_poi[0] = 0;
-        ret = nand_write_oob_std(chip, page);
-    }
-
-    return ret;
-}
-
-static const struct mtd_ops _ops =
-{
-    nand_erase,
-    nand_read,
-    nand_write,
-    nand_block_isbad,
-    nand_block_markbad,
-};
-
-int rt_mtd_nand_init(rt_nand_t *nand, int blk_size, int page_size, int oob_size)
-{
-    uint8_t *buf;
-
-    buf = rt_malloc(oob_size * 3);
-    if (buf == RT_NULL)
-        return -ENOMEM;
-
-    nand->oob_poi = buf;
-    buf += oob_size;
-    nand->buffers.ecccalc = buf;
-    buf += oob_size;
-    nand->buffers.ecccode = buf;
-    nand->pagebuf = 0; /* alloc when unaligen access */
-
-    nand->pages_pb = blk_size / page_size;
-    nand->ecc._step = page_size / nand->ecc.stepsize;
-    nand->page_size = page_size;
-    nand->oobsize = oob_size;
-
-    nand->parent.type = MTD_TYPE_NAND;
-    nand->parent.ops = &_ops;
-    nand->parent.sector_size = page_size;
-    nand->parent.block_size = blk_size;
-    nand->parent.oob_size = oob_size;
-
-    switch (nand->ecc.mode)
-    {
-    case NAND_ECCM_NONE:
-    {
-        nand->read_page = nand_read_page_raw;
-        nand->write_page = nand_write_page_raw;
-    }break;
-    case NAND_ECCM_HW:
-    {
-        nand->read_page = nand_read_page_hwecc;
-        nand->write_page = nand_write_page_hwecc;
-    }break;
-    default:
-    {
-        rt_free(buf);
-        return -1;
-    }
-    }
-
-    return 0;
-}
diff --git a/components/drivers/mtd/mtdnor.c b/components/drivers/mtd/mtdnor.c
deleted file mode 100644
index 481d26167e..0000000000
--- a/components/drivers/mtd/mtdnor.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author        Notes
-   2018-09-10     heyuanjie87   first version
-
- */
-
-#include <drivers/mtdnor.h>
-
-#ifdef MTD_USING_NOR
-static int _nor_erase(rt_mtd_t *mtd, loff_t addr, size_t len)
-{
-    rt_nor_t *nor;
-
-    nor = (rt_nor_t *)mtd;
-    return nor->ops->erase(nor, addr, len);
-}
-
-static int _nor_read(rt_mtd_t *mtd, loff_t from, struct mtd_io_desc *desc)
-{
-    rt_nor_t *nor;
-    int ret;
-
-    nor = (rt_nor_t *)mtd;
-    ret = nor->ops->read(nor, from, desc->datbuf, desc->datlen);
-    if (ret > 0)
-    {
-        desc->datretlen = ret;
-        ret = 0;
-    }
-
-    return ret;
-}
-
-static int _nor_write(rt_mtd_t *mtd, loff_t to, struct mtd_io_desc *desc)
-{
-    rt_nor_t *nor;
-    int ret;
-
-    nor = (rt_nor_t *)mtd;
-    ret = nor->ops->write(nor, to, desc->datbuf, desc->datlen);
-    if (ret > 0)
-    {
-        desc->datretlen = ret;
-        ret = 0;
-    }
-
-    return ret; 
-}
-
-static const struct mtd_ops _ops =
-{
-    _nor_erase,
-    _nor_read,
-    _nor_write,
-    0,
-    0
-};
-
-int rt_mtd_nor_init(rt_nor_t *nor, int blksize)
-{
-    nor->parent.sector_size = 1;
-    nor->parent.block_size = blksize;
-    nor->parent.ops = &_ops;
-    nor->parent.type = MTD_TYPE_NOR;
-    nor->parent.oob_size = 0;
-
-    return 0;
-}
-#endif