Hi Shenrong, I have the same problem. I solved it by making a rather ugly patch. I changed the 8xx reset vector code to first put flash in Ready state (reset the flash state machine by writing 0x5050)
Jaap-Jan > > Hi, > > I met a problem when using JFFS2/MTD with Intel CFI Flash.I mount > JFFS2 fs on a MTD partition and copy a file to JFFS2 fs, then umount > the JFFS2 fs and reboot the system. The bootloader(PPCBoot) crashes > around the first instruction. I check the Flash with BDI, and find the Flash > in > the Status state(i.e. 0x00800080). The Intel CFI Flash is supported in file > cfi_cmdset_0001.c. After the read/write/erase operations, the Flash is not > reset to Ready state(what I think is for increasing the performance). This > doesn't > happen with AMD CFI Flash(impled in cfi_cmdset_0002.c). Even the umount > operation(with cfi_intelext_sync() called ) won't reset the Flash to Ready > state. > So run from Flash after reboot won't success except Hard reset. > > I think the Flash should be reset to Ready state at least in > cfi_intelext_sync(), which > will be called whenever the MTD partition is closed. Maybe I have missed > sth. > Any ideas? Thanks. > > Shenrong > > > --- J.G.J. Boor Lucent Technologies Nederland b.v. Room: BE-525 Optical Networking Group TMS Data Phone: +31 (0)35 687 4721 Larenseweg 50, P.O. Box 1168, Fax: +31 (0)35 687 5976 1200 BD, Hilversum, The Netherlands mailto:jjboor at lucent.com ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
