spi-flash烧写擦除都没有效果

Creator_莫言 2014-11-26 03:52:18

用mfgtool工具烧写uboot到spi-flash，终端输出都是正常的，但是烧写完成后却发现spi-flash里面什么都没有。擦除和写入都没有作用,有大神给点建议么？

终端打印：



m25p80 spi1.2: non-JEDEC variant of m25p16

m25p80 spi1.2: m25p16 (2048 Kbytes)

MXC MTD nand Driver 3.0

NAND device: Manufacturer ID: 0xad, Chip ID: 0xdc (Hynix NAND 512MiB 3,3V 8-bit)

RedBoot partition parsing not available

Creating 2 MTD partitions on "NAND 512MiB 3,3V 8-bit":

0x000000000000-0x000004000000 : "home-romfs"

0x000004000000-0x000020000000 : "user-nand-jffs2"

.

.

.

UTP: received command '$ flash_eraseall /dev/mtd0'

UTP: executing "flash_eraseall /dev/mtd0"

Erasing 64 Kibyte @ 200000 -- 100 % complete.

UTP: sending Success to kernel for command $ flash_eraseall /dev/mtd0.

UTP: received command 'send'

UTP: sending Success to kernel for command send.

UTP: received command '$ dd if=$FILE of=/dev/mtd0 bs=512'

UTP: executing "dd if=$FILE of=/dev/mtd0 bs=512"

516+1 records in

516+1 records out

264256 bytes (258.1KB) copied, 1.698087 seconds, 152.0KB/s

UTP: sending Success to kernel for command $ dd if=$FILE of=/dev/mtd0 bs=512.

utp_poll: pass returned.

UTP: received command '$ echo Update Complete!'

ucl配置文件：



<CMD type="push" body="mknod class/mtd,mtd0,/dev/mtd0"/>

<CMD type="push" body="mknod class/mtd,mtd1,/dev/mtd1"/>

<CMD type="push" body="mknod class/mtd,mtd2,/dev/mtd2"/>

<!--CMD type="push" body="mknod class/mtd,mtd3,/dev/mtd3"/>

<CMD type="push" body="mknod class/mtd,mtd4,/dev/mtd4"/>--> 

<CMD type="push" body="mknod block,mtdblock0,/dev/mtdblock0,block"/>

<CMD type="push" body="mknod block,mtdblock1,/dev/mtdblock1,block"/>

<CMD type="push" body="mknod block,mtdblock2,/dev/mtdblock2,block"/>

<!--CMD type="push" body="mknod block,mtdblock3,/dev/mtdblock3,block"/>

<CMD type="push" body="mknod block,mtdblock4,/dev/mtdblock4,block"/>-->



<!------u-boot------>

<CMD type="push" body="$ flash_eraseall /dev/mtd0">Erasing u-boot partition</CMD>

<CMD type="push" body="send" file="files/u-boot.bin">Sending u-Boot</CMD>

<CMD type="push" body="$ dd if=$FILE of=/dev/mtd0 bs=512">write u-Boot to SPI_NOR</CMD>

...全文

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Creator_莫言 2014-12-02

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现在的情况是这样的：在mx53上尝试将u-boot烧写到spi-flash上，用示波器测量，CS信号，Clk信号都正常。能够擦除，但是当运行到dd命令写flash的时候，很快就完成了，查看flash中的数据，几乎大部分仍然是FFFF，附上部分错误数据： 70800000: ea00020e 00000000 00000000 00000000 ................ 70800010: 00000000 ffffffff ffffffff ffffffff ................ 70800020: ffffffff ffffffff ffffffff ffffffff ................ 70800030: ffffffff ffffffff ffffffff ffffffff ................ 正确的数据应该是： 0E0200EA 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 我在uboot命令下可以正确写入，但是dd命令却出现数据错误。按说我烧写的时候能够擦除，那说明spi是正常的，只是写数据出错，有没有可能是dd命令有问题？

Creator_莫言 2014-12-02