Am 20.06.2011 01:13 schrieb Michael Karcher: > The currently unreferenced function in sharplhf00l04.c does a standard > FWH block protection reset (writes 0 to the protection register) and a > standard FWH block erase. > > The locking blocks of the FWH block lock cover 128KB areas, and thats > the only thing page_size is used for in the functions referenced in the > LHF00L04 entry. >
My datasheet talks about 8 kB sectors and 64 kB blocks in "Figure 3. Memory Map", but "Table 8. FWH Flash Registers Configuration Map" only mentions registers for the 8 kB sectors in the top 64 kB block explicitly. "Table 8" also mentions "XX002H Whole Block Lock Register" as generic placeholder, and AFAICS those two X mean you have one block lock register for each of the 15 bottom 64 kB blocks and one for each of the 8 top 8 kB sectors. That also means the 82802ab unlocking as is can't be used. I was unable to find any 128 kB reference in my datasheet, so I'm going to Nack that part. > Finally, this adds a comment that there are non-volatile (flash memory) > lock bits for 8 sectors in the last 64KB. They are write-only and clearable > at once. Readback seems unsupported. > I have a slightly different interpretation of the datasheet (see above), so I'm not sure how to proceed. > Signed-off-by: Michael Karcher <[email protected]> > Killing sharplhf00l04.c is a good thing, though, so that part is Acked-by: Carl-Daniel Hailfinger <[email protected]> Regards, Carl-Daniel -- http://www.hailfinger.org/ _______________________________________________ flashrom mailing list [email protected] http://www.flashrom.org/mailman/listinfo/flashrom
