Messages in this thread | | | Date | Thu, 28 Jan 1999 13:23:14 -0700 (MST) | From | (Chris Hirsch ) | Subject | mmaped PCI Base Address Question |
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Hey all...I'm having problems with an AMCC PCI card and I want to make sure that the software is right before I go talk to the HW guys :-)
My big problem is that things used to work before they upgraded the EPROM and I wanted to verify that I'm doing things correctly. I'm thinking that since the memory regions are not the same and they seem to be very different from when it works that is is a BadThing(Tm). Can anybody shed any light on my problem?
Before the EPROM upgrade on the card I was getting this in my /proc/pci
Bus 0, device 12, function 0: Unknown class: AMCC Unknown device (rev 0). Vendor id=10e8. Device id=4750. Fast devsel. IRQ 11. Master Capable. Latency=32. Non-prefetchable 32 bit memory at 0xe0801000. Non-prefetchable 32 bit memory at 0xe0802000. Non-prefetchable 32 bit memory at 0xe0803000.
With the new EPROM on the card I now get
Bus 0, device 12, function 0: Unknown class: AMCC Unknown device (rev 0). Vendor id=10e8. Device id=4750. Fast devsel. IRQ 11. Master Capable. Latency=32. Non-prefetchable 32 bit memory at 0xe0000000. Non-prefetchable 32 bit memory at 0xdf800000. Non-prefetchable 32 bit memory at 0xdf000000.
I am doing an ioremap on the memory as follows #define CFG_REGION_SIZE 64 #define DATA_REGION_SIZE 1024 #define STATUS_REGION_SIZE 32
pcibios_read_config_dword( hic_device[minor].bus, hic_device[minor].method, PCI_BASE_ADDRESS_0, &ptr ); hp->config = ioremap( ptr, CFG_REGION_SIZE); pcibios_read_config_dword( hic_device[minor].bus, hic_device[minor].method, PCI_BASE_ADDRESS_1, &ptr ); hp->bank = (HicBank*)ioremap( ptr, DATA_REGION_SIZE); pcibios_read_config_dword( hic_device[minor].bus, hic_device[minor].method, PCI_BASE_ADDRESS_2, &ptr ); hp->status = ioremap( ptr, STATUS_REGION_SIZE);
Anybody see any problems with this?
Thanks, Chris
-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/- Chris Hirsch chris@SymSystems.com SymSystems, LLC -- http://www.SymSystems.com (303) 858-0085 x1299 Amateur Radio Callsign: N0ZWI ------------------------------------------------------------------------- What? Me Worry? Ubi est mea aniticula comminosa? Linux Inside Where is my rubber ducky?
Consider the daffodil. And while you're doing that, I'll be over here, looking through your stuff.
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