Hi.
The attached patch adds support for the Open Graphics Project development card, OGD1, as a SPI flash programmer. The project is in the the process of designing and making a complete, open source, graphics card. Check out http://wiki.opengraphics.org.
The first development card is a PCI add in card containing a couple of FPGAs and a couple of serial flash chips (amongst other things). The FPGA's are called XP10 and S3 (their part numbers). The XP10 contains it's own flash and does not need to be programmed by flashrom - it ensures that the device can enumerate on the PCI bus without needing further configuration.
The larger FPGA is the S3. This is configured from a large serial flash (2M bytes). The second serial flash is used to store the VGA BIOS. It is smaller (128K bytes).
The attached patch adds support for programming either of the two serial flash chips. They are both serial SPI devices.
The programmer device takes one configuration option which selects which of the two flash chips is accessed. This must be set to either "cprom" or "bprom". (The project refers to the two chips as "cprom" / "bprom", "s3" and "bios" are more readable alternatives).
I have also attached a log of the modified flashrom talking to both devices. I can read, erase, write and verify to both. The chips installed on my card are a SST25VF010 and a SST25VF016B. I have added a section to flashchips.c for the former. I have modified the flags of the later to say that writing works.
Signed-off-by: Mark Marshall mark.marshall@csr.com
Thanks,
MM