Hi Rafael,

> So would the  solution be to flash the larger chip with some external tool 
> like a Raspberry Pi and adjust the size of the CBFS in coreboot (can do both, 
> shouldn't be a problem).

That's part of it. However, you still need to update the flash
descriptor contents (bottom 4KiB of the ROM image) so that it
describes the larger flash chip you wish to use. Details about the
flash descriptor layout can be found in "SPI Programming Guide"
documents from Intel which may require registering an account on
developer.intel.com and agreeing to their terms.

> I guess I'll need some other payload with a SPI driver to access the 
> remaining space (u-boot? No luck there so far..) right?

The limitation that Nico describes is due to the way the SPI
controller works on modern Intel platforms. Software/firmware running
on the CPU will not be able to access any ROM region that is not
defined with appropriate parameters in the flash descriptor.
_______________________________________________
flashrom mailing list -- [email protected]
To unsubscribe send an email to [email protected]

Reply via email to