Legacy ISA registers/interrupts in PCI device tree node

Segher Boessenkool segher at kernel.crashing.org
Mon Jul 16 22:40:48 EST 2007

> I wonder, if there is a recommended way to specify ISA register  
> addresses
> and interrupts for a PCI device (unlike for a PCI2ISA bridge)?

The PCI binding describes the required way to do this.

> The device in question is the integrated IDE controller of the VIA686B
> southbridge, which works in compatible/legacy mode and thus uses  
> interrupts
> 14 and 15 of the i8259 PIC. Should the fdt contain this information

Yes, it should, even if you don't use this in the Linux
kernel yet.

> or should I hardcode the values in the platform setup code?



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