18 lines
524 B
Markdown
18 lines
524 B
Markdown
|
# Apollolake
|
||
|
|
## SPI flash layout
|
||
|
|
|
||
|
|
![][apl_flash_layout]
|
||
|
|
|
||
|
|
With Apollolake Intel invented another flash layout for x86 firmware called IFWI (Intel FirmWare Image).
|
||
|
|
|
||
|
|
Usually on x86 platforms the bootblock is stored at the end of the bios region
|
||
|
|
and the Intel ME / TXE has its own IFD region. On Apollolake both have been
|
||
|
|
moved into the IFWI region, which is a subregion of "BIOS", since it allows to
|
||
|
|
store multiple firmware components.
|
||
|
|
|
||
|
|
The IFWI region can be manipulated by `ifwitool`.
|
||
|
|
|
||
|
|
[apl_flash_layout]: flash_layout.svg
|
||
|
|
|
||
|
|
|