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Hi,
I would like to know whether it is possible to
probe a PCI card after bootup.
The exact schenario is explained as
follows:
I have a PCI card on the Host machine running
linux. The PCI card itself is an intelligent device having another processor
running another RTOS.
Linux during boot-up (PCI device driver
-firmware) scans all the PCI cards and allocates the
resources.
But I want to boot the PCI card without
booting the host CPU.
My doubt is : After the PCI card boots up it
will initialize the PCI configuration registers with the same values, is the
memory resources (IO/memory) which were allocated earlier are still valid
OR to be allocated again?
Does a PCI configuration cycles required? If Yes,
how it can be achieved?
Can I have description specifying what all happens
in a PCI device initialization?
Thanks in advance.
Regards,
Anj
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