Hello All,
I am new to EDK and UEFI environment.Please share your knowledge/ideas if
you come across my scenario as mentioned below.
My Setup Details:
My motherboard (Host-x86) is connected with arm based PCI board over
PCIe.There are four SATA devices are connected to arm board.
My Design:
For this requirement,I need to design a PCI expansion ROM,the functionality
of PCI expansion ROM will show the list of connected SATA devices on arm
board and option ROM will execute from Host-motherboard BIOS
environment.The option ROM will be flashed on arm board and it'll execute
from Host BIOS environment.
My Query:
1) In general, Host will detect arm based board during PCI bus enumeration
via PCIe configuration space.But we need to access connected PCI
devices(SATA) connected on arm board.How do we access PCI configuration
space of connected SATA PCI devices on arm board from Host BIOS environment.
2 ) Is it possible to access SATA devices on arm board from Host BIOS
environment with a help of PCI configuration space of PCIe card.
Please share your views/ideas on the same.
Thanks
Murali.S
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