On 10/18/2007 10:51 AM, S. Vishnu Priya wrote: > Thankyou so much for your valuable suggestions. > > I have gone through the link. In the configuration space we will be > having the total size for each Bar regions. When i insert my card in the > pci slot i am getting one set of address for the BAR regions. With that
So if I understand correctly, you have a pci hotplug capable mainboard? Or what do you insert and where? > address as the base address i did memory mapping and try to access FPGA > registers i couldn't access. Some junk data's are coming. For this > problem if i reboot my PC, i am getting the another set of address and > follow the same procedure. I am able to access all my FPGA registers. > > So for the first time i am not getting address properly. Once reboot i > can able to retrieve the values. Can you clarify me where the problem > could be? Hmm, me no, Cc-ing Greg and lkml. Maybe outputs from lspci -vvxxx would be good when you plug the card in and after reboot. I suspect the card is not reset somehow rather than pci layer, so that the plx bridge doesn't translate the reads/writes correctly. > On 10/18/2007 10:17 AM, S. Vishnu Priya wrote: >> Actually i mean to ask this question. Through the below codings we >> can retrieve the details through our driver. My doubt is, once our card >> has been inserted in the PCI slot we can able to see some information of >> our card in this file /proc/bus/pci/devices. >> >>> From where kernel will get these details from the card ie from EEPROM or >> from some other register? > > see the second link and the line above it... > >> It prints the contents of pci_dev structures: >> http://www.linux-m32r.org/lxr/http/source/drivers/pci/proc.c#L335 >> which is retrieved from pci config space; mostly everything from here: >> http://www.linux-m32r.org/lxr/http/source/drivers/pci/probe.c - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
