> Hello, I am trying to run kernel 2.6.20 on an Au1500 based board. Versions
> 2.4.x of the kernel are correctly working.
How could they work I wonder? :-O
Eheheh :-)
> Problem: on the board there is a HighPoint 371N ATA controller. At the
There's *no* proper support for HPT371N in 2.4.x.
We've modified them to work. We fixed the "first channel disabled" problem and the "set pll with a wrong algorithm", etc. :-)
> Details:
> The driver I use is "drivers/ide/pci/hpt266.c". I've already fixed the
I guess you mean hpt366.c. :-)
Whoops. Right. I'm using hpt366.c. I'd also like to try the nel libata drivers.
> timing problems and PLL configuration that afflict this controller, and
> removed RESOURCE_64BIT to fix problems with the PCI bus on mips and
> resource_size_t casts.
Erm, does it indeed fix the problem I wonder?
Well, at least this change removed the "skipping PCI config due to resource conflict" error.
The PCI config. space accesses use completely different meachanism form
I/O and memory accesses.
I suspected this, but sadly I am novice to PCI. Thank you very much, Sergei.
Today I've done another test: dumping I/O ATA registers, and the results are puzzling:
The format is:
[hw->io_ports index] [I/O port addr] [I/O port value]
[17179571.588000] 0 addr: 0x1408 val: 0x08
[17179571.596000] 1 addr: 0x1409 val: 0x09
[17179571.608000] 2 addr: 0x140a val: 0x0a
[17179571.620000] 3 addr: 0x140b val: 0x0b
[17179571.632000] 4 addr: 0x140c val: 0x0c
[17179571.644000] 5 addr: 0x140d val: 0x0d
[17179571.656000] 6 addr: 0x140e val: 0xa0
[17179571.668000] 7 addr: 0x140f val: 0x0f
[17179571.680000] 8 addr: 0x1416 val: 0x0a
[17179571.692000] 9 addr: 0x00 val: 0x48
The values seem wrong to me..
Bye!
