with regard to interrupt signal, I am still puzzled with the PCI_INTA#, it is said that it's a input io. Shouldn't it output the interrupt signal to cpu?
Songmao Tian wrote:
done, there's a bug in my software, datebook is right~:)
Songmao Tian wrote:
Hi Marc, Thanks for you last reply on virtual pci config space, I finally find a doc on it at http://www.amd.com/files/connectivitysolutions/geode/geode_gx/32663C_lx_gx_p... by reading the paper of <<Breaking the Chains—Using LinuxBIOS to Liberate Embedded x86 Processors>>, really thanks.
And I am curious with the irq signal of cs5536. it's said that gpio12 can be used as a INTR_OUT of pic, I have configure the GPIO as out_aux1，but it's seems I have missed something, the output of gpio12 doesn't change with some rtc interrupt occur(I can see some bit of irr of 8259 set).
Thanks in advanced.Tian