Can you provide info below: 1. Platform/SoC ? 2. Verbose flashrom output(append -VVV in commandline)
Regards, Naresh On Wed, Oct 14, 2020 at 8:03 PM Balaji Sivakumar <[email protected]> wrote: > Hello Everyone, > > We are using SPI flash(Macronix) to program the BIOS. And we use an > external programmer to flash the BIOS (coreboot including FD+ME) into SPI > Flash (16384 kB, SPI), it works fine and boots well. The board is > functional and we have successfully booted a kernel on it. > > Am working on adding a feature to upgrading the BIOS (complete > IFD+ME+Coreboot) using intel-spi driver at the OS level. Able to > successfully take the backup full 16MB spi nor flash data which > includes IFD+ME+BIOS using flashrom Internal Programmer option and it is > identified as Opaque flash chip and using dd command as well. > > But we are seeing the erase fail through both flashrom and flash_erase > utility. I believe it fails to erase at the flash descriptor location. > > As far as Read/Write access to the SPI regions, I have enabled the Host > CPU BIOS write access and ME Master Access as 0xFFFF through Intel FIT Tool > but still not able to erase it and it fails. > > Is there anything that could be preventing to enable read/write access to > the Intel flash descriptor or any SOC SPI controller protection to access > the Flash descriptor? > > Any pointers would be appreciated. > > Thanks > Balaji > _______________________________________________ > coreboot mailing list -- [email protected] > To unsubscribe send an email to [email protected] > -- Best regards, Naresh G. Solanki
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