斐讯 K3 更换 NAND Flash

shuszhao

之所以要换，是因为刷了梅林后，JFFS分区经常有问题，日志里面出现很多错误，例如下面：

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[li]Aug  1 08:00:22 kernel: JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.[/li][li]Aug  1 08:00:22 kernel: mtd->read(0x400 bytes from 0x2a00000) returned ECC error[/li][li]Aug  1 08:00:22 kernel: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02a00000: 0xffff instead[/li][li]Aug  1 08:00:22 kernel: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02a00004: 0x04fc instead[/li][li]Aug  1 08:00:22 kernel: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02a00008: 0x35b4 instead[/li][li]Aug  1 08:00:22 kernel: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02a0000c: 0x0018 instead[/li][li]Aug  1 08:00:22 kernel: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02a00010: 0xffff instead[/li][li]Aug  1 08:00:22 kernel: Empty flash at 0x02a00014 ends at 0x02a00018[/li][li]Aug  1 08:00:22 kernel: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02a0001c: 0x5000 instead[/li][li]Aug  1 08:00:22 kernel: Empty flash at 0x02a00020 ends at 0x02a00024[/li][li]Aug  1 08:00:22 kernel: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02a00024: 0xbfff instead[/li][li]Aug  1 08:00:22 kernel: Empty flash at 0x02a00028 ends at 0x02a0002c[/li][li]Aug  1 08:00:22 kernel: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02a0002c: 0x4197 instead[/li][li]Aug  1 08:00:22 kernel: Empty flash at 0x02a00030 ends at 0x02a00034[/li][li]Aug  1 08:00:22 kernel: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02a00034: 0xffff instead[/li][li]Aug  1 08:00:22 kernel: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x02a00038: 0x0006 instead[/li][li]Aug  1 08:00:22 kernel: Further such events for this erase block will not be printed[/li][li]Aug  1 08:00:22 kernel: Empty flash at 0x02a00040 ends at 0x02a00044[/li][li]Aug  1 08:00:22 kernel: Empty flash at 0x02a0005c ends at 0x02a00064[/li]

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[li]Aug 20 12:06:38 kernel: mtd->read(0x44c bytes from 0x3c602b4) returned ECC error[/li][li]Aug 20 12:06:38 kernel: Header CRC failed on REF_PRISTINE node at 0x03c602b4: Read 0xc79d4397, calculated 0x245b4f1d[/li][li]Aug 20 12:06:38 kernel: Node CRC 2445ffff != calculated CRC 56cdeaf8 for node at 03c602b4[/li][li]Aug 20 12:06:38 kernel: read_cache_page() returned error: -5[/li][li]Aug 20 12:06:38 kernel: Error garbage collecting node at 03c602b4![/li][li]Aug 20 12:07:38 kernel: Header CRC failed on REF_PRISTINE node at 0x03c602b4: Read 0xc79d4397, calculated 0x245b4f1d[/li][li]Aug 20 12:07:38 kernel: Node CRC 2445ffff != calculated CRC 56cdeaf8 for node at 03c602b4[/li][li]Aug 20 12:07:38 kernel: read_cache_page() returned error: -5[/li][li]Aug 20 12:07:38 kernel: Error garbage collecting node at 03c602b4![/li]

用的是三星k9f1g08u0f闪存，我换成了MX30LF1G18AC，早期K3使用过

K3做了SPI,NAND双启动，先把SPI Flash编程器写入CFE, 焊上K3,

用TTL连接路由，连接网线,用SPI启动，

开TFTP,mtd0放TFTP目录,IP自己指定

在SecureCRT窗口里面： CFE:

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命令是：

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[li]flash -noheader 192.168.2.10:mtd0.bin nflash0.brcmnand[/li]

写入以后就可以切换到NAND 启动，写入固件了，

之后刷了梅林，JFFS正常了，日志里面再没出现上述坏块信息，

一些图片

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图片:IMG_3153.JPG

hongyancl

楼主动手

tdshawn

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