[LinuxBIOS] BIOS Saver RD1

Jonathan McDowell noodles at earth.li
Wed Aug 3 10:36:40 CEST 2005

On Wed, Aug 03, 2005 at 11:59:20AM +0900, Jun OKAJIMA wrote:
> Probably, most guys here use BIOS Saver.
> And it works well?
> In mine, RD1 for PLCC gets not being writable suddenly.
> I mean, it seems writable but # flash_rom -v fails.
> I solved this problem by a quick hack.
> How about yours? You can write RD1 or W49F002U well?
> Any problem happen?

I had to patch util/flash_and_burn/w49f002u.c:

@@ -42,7 +42,7 @@
        printf("Programming Page: ");
-       for (i = 0; i < total_size; i++) {
+       for (i = 0; i < total_size / page_size; i++) {

Even after that it's sometimes a bit flakey and I have to erase, then
write it. I've put the board's original BIOS in the RD1 and am writing
to the SST 39SF020A instead, which works without problems.

I also tried to add Atmel AT49F002 support to flash_rom, which according
to the data sheet should be very like the W49F002U. However I couldn't
get it reliably working.

> BTW, a cable of your RD1 is not broken?
> I needed soldering to fix it.

Mine was fine out of the box.


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