Hi,
My CPU is Intel x86 (Broadwell DE). I want to write to the command register of the management ethernet PHY's PCIe
config space during Linux boot up. And I want to do that before kernel start loading the igb (ethernet) driver for this PHY.
Can I do that inside the start_kernel() routine in init.main.c, or is the driver is already installed once code reaches this point (I am assuming probably not) ?
If this is the correct routine to do this job, is there any kernel code that I can use to write to this config space?
I have bus/device/function info for this management PHY which is already set by the BIOS.
thanks,
Khalid.
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