[問題] MTD問題

看板LinuxDev作者antory ( )時間16年前 (2009/05/26 11:29)推噓0(0推 0噓 1→)

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各位前輩好,想請教一些問題, 目前我在我的板子上有nandflash&SD/mmc card等裝置, 一直以來系統是用mmc/sd card來boot的,也用nandflash boot過, 日前換了一顆nandflash,之後卻無法把bootImage and jffs2複製到nand上, NAND device: Manufacturer ID: 0xec, Chip ID: 0xd5 (Samsung NAND 2GiB 3,3V 8-bit) mmc/sd開機有偵測到 Scanning device for bad blocks Bad eraseblock 0 at 0x00000000 Bad eraseblock 1 at 0x00080000 Bad eraseblock 2 at 0x00100000 .... .... Bad eraseblock 251 at 0x07d80000 Creating 3 MTD partitions on "NAND 2GiB 3,3V 8-bit": 0x00000000-0x01400000 : "Boot" 0x01400000-0x07800000 : "Root FS jffs2" 0x07800000-0x80000000 : "Data jffs2" MTD partition沿用以前的分割設定, root@stmp37xx:~# cat /proc/mtd dev: size erasesize name mtd0: 80000000 00080000 "NAND 2GiB 3,3V 8-bit" mtd1: 01400000 00080000 "Boot" mtd2: 06400000 00080000 "Root FS jffs2" mtd3: 78800000 00080000 "Data jffs2" root@stmp37xx:~# nandwrite -p /dev/mtd2 devel-eas-stmp37xx.jffs2 Unknown flash (not normal NAND) 寫檔不行,以前就直接writeblock... root@stmp37xx:~# flash_erase /dev/mtd0 Erase Total 1 Units Performnand_erase: attempt to erase a bad block at page 0x00000000 ing Flash Erase of length 524288 at offset 0x0 MTD Erase failure: Input/output error root@stmp37xx:~# flash_erase /dev/mtdblock0 Erase Total 1 Units flash_eraseall /dev/mtd都正常, 請問一下我到底忽略了哪些事情,以及我該用啥方法來把mmc卡內的資訊寫入nandflash呢? 整個沒啥頭續～ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 203.73.247.232