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
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