Re: [coreboot] Using Intel e3800 pcu spi to program flash

2017-07-14 Thread Graham Perkins
reboot] Using Intel e3800 pcu spi to program flash Hello Graham, the SPI controller for the boot firmware is usually treated as sepa- rated from the OS and therefore not advertised in ACPI. AFAIK, Linux also doesn't have a driver for it. We usually use flashrom [1] to access the firmware flash.

Re: [coreboot] Using Intel e3800 pcu spi to program flash

2017-07-13 Thread Nico Huber
Hello Graham, the SPI controller for the boot firmware is usually treated as sepa- rated from the OS and therefore not advertised in ACPI. AFAIK, Linux also doesn't have a driver for it. We usually use flashrom [1] to access the firmware flash. It has a special programmer target called

[coreboot] Using Intel e3800 pcu spi to program flash

2017-07-13 Thread Graham Perkins
Hi All, I feel I am going around in circles with this problem. The task at hand is to be able to upgrade coreboot/uefi image in a winbond W25Q64 flash chip from linux. This chip is connected to the PCU SPI interface on the Intel e3805 processor. I know coreboot is writing to this chip without