Richard Smith wrote:
On 2/27/06, Anton Borisov a.borisov@tesv.tmb.ru wrote:
On Sun, 26 Feb 2006 16:55:54 +0100 Peter Stuge stuge-linuxbios@cdy.org wrote:
Peel the shiny sticker off the chip if there is one and copy the chip manufacturer name and model number to the list if you don't recognize them.
There is no shiny sticker. It has a soldered chip. SST49LF004B.According to the datasheet I got from here:
http://www.sst.com/products.xhtml/serial_flash/49/SST49LF004B
The Mfg ID of that part is a 0xBF not 0xDF.
Right. I bet if he dumps the top 256KB of memory (fffc0000 -ffffffff) he will see df is the first byte of the bios. The writes to the part, which you need to do for ID purposes, are not happening. They are disabled by some external hardware. Vendors do this all the time --- hookup up a GPIO to an and or or gate and don't tell anyone.
ron