pci_id_table and mid_idsel?

Parav Pandit paravpandit at yahoo.com
Fri Aug 25 18:56:43 EST 2006

  Can someone please explain me pci_irq_table and how to select the value of min_idsel , max_idsel for my 85xx boards?
  I am facing issues in registering the interrupt handler.
  On what basis we have to select the min_idsel and max_idsel value??
  Currently common_swizzle function retuns slot number 11, if I hard-code the value of 11 in the min_idsel and max_idsel because I have only one slot, I am able to register the interrupt handler.
  PCI_SLOT in common_swizzle returns 11 because device function number (devfn) has value of 88  ( I am wondering why 88 instead of from 0-7).
  (( 88>> 8) && 0x1f) = 11
  Since max functions we can have 8. (0-7). Why OS assign the value of 88 inside?
  Configuration transaction uses only 3 bits of function number in the CONFIG_ADDRESS as per PCI local bus specification 2.2.
  Parav Pandit

 All-new Yahoo! Mail - Fire up a more powerful email and get things done faster.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20060825/960c07b4/attachment.htm 

More information about the Linuxppc-embedded mailing list