Hello, I use a Linux 2.6.9 on a 85xx custom board with a NAND flash.
This flash has some bad blocks. NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-bit) Scanning device for bad blocks Bad eraseblock 8 at 0x00100000 Bad eraseblock 430 at 0x035c0000 ... Creating 1 MTD partitions on "NAND 128MiB 3,3V 8-bit": 0x00000000-0x08000000 : "flash partition 1". I have selected in the kernel : 1) the MTD character and block supports for NAND, 2) the CRAMFS and JFFS2 supports for NAND. I can erase the flash but receive IO errors for each bad blocks (that seems right). I can mount an empty JFFS2 partition on the NAND and untar some directories and files in it. I would like to generate some JFFS2 images and program them in the flash with a character command like "cat img > /dev/mtd/0". If I dont encounter a bad block, it runs right else the command fails. This is a little bit annoying. So my question is simple : Is there a MTD character driver which can detect and ignore the bad blocks in a NAND flash ? Thanks for any tips. Bye Laurent
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