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TI工程师:你好!
AM3354处理器,最近升级了NandFlash,型号:MT29F8G08ABACAWP‐IT:C。uboot 和linux均可以正常启动,进入linux命令行报如下错误。 ECC 用 bch16 。
[ 22.820095] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 22.826433] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 22.832663] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 22.843072] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 22.856804] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 22.863069] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 22.873170] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 22.883136] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 22.892244] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading 160 bytes from PEB 1754:58784, read only 160 bytes, retry
[ 23.020079] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 23.026457] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 23.032691] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 23.043796] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 23.061303] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 23.110077] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 23.151375] omap2-nand 8000000.nand: uncorrectable bit-flips found
[ 23.182113] omap2-nand 8000000.nand: uncorrectable bit-flips found
之前论坛也有其他工程提出类似问题,可能由于时间关系,相关链接已经失效。请帮忙提供解决方法。
之前相关问题链接:
以下是一些可能的解决方案和排查步骤:
1. 检查硬件连接:确保NandFlash芯片正确连接到处理器。检查连接线路、引脚连接和电源供应等。
2. 检查NandFlash芯片的型号和规格:确保所使用的NandFlash芯片与处理器兼容,并且支持所需的操作模式和特性。
3. 检查NandFlash芯片的配置:确保NandFlash芯片的参数和配置正确设置。这包括页大小、块大小、ECC算法等。
4. 检查处理器的配置:确保处理器的NandFlash控制器配置正确。这包括时序、ECC算法、读写模式等。