hi!
I've got a strange problem.
I'm writing a driver for a PCI card.
The card has a problem because the serial eeprom where the pci configuration
data is loaded from is not valid and therefore the PLX-9050 chip gives some
default value. It shows vendor:devid as 10b5:9050 and the kernel identifies
it as a PLX PCI <-> IOBus Bridge. (kernel 2.5.7)
The serial eeprom can be read written at 50h in the local config area.
When I load my driver and it wants to request a memory region it seems that it
is already mapped. (I modified the driver to look for 0x10b5:9050)
So it fails.
The cat /proc/pci shows a memory region at 0xf4200000.
int plc_init_dev1(struct pci_dev *dev)
{
printk("%x\n", pci_resource_start(dev, 0);
return -EBUSY;
if (check_mem_region(pci_resource_start(dev, 0), 128))
return -EBUSY;
}
So why is it already in use?
I have to access that memory area. How can I do it if my driver doesn't load?
That's the only way to modify the eeprom contents.
Thanks.
Gabor
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This archive was generated by hypermail 2b29 : Tue Apr 23 2002 - 22:00:34 EST