[PATCH v2 19/27] pci: PCIe driver for Marvell Armada 370/XP systems
From: arnd@arndb.de (Arnd Bergmann)
Date: 2013-02-07 23:27:52
Also in:
linux-pci
From: arnd@arndb.de (Arnd Bergmann)
Date: 2013-02-07 23:27:52
Also in:
linux-pci
On Thursday 07 February 2013, Andrew Murray wrote:
I'm not sure if the device pin part of the map is correct (I always
forget how this works) - but I know this would definately work:
interrupt-map-mask = <0xf800 0 0 7>
interrupt-map = <0x0800 0 0 1 &mpic 58
0x0800 0 0 2 &mpic 58
0x0800 0 0 3 &mpic 58
0x0800 0 0 4 &mpic 58
0x1000 0 0 1 &mpic 59
0x1000 0 0 2 &mpic 59
0x1000 0 0 3 &mpic 59
0x1000 0 0 4 &mpic 59
....If all the pins are routed to the same interrupt, you can leave the pin out of the map-mask and save a bunch of lines in the interrupt-map, at least by the spec. I have not looked at the source code to see if that is how Linux implements the lookup, but that can be fixed if necessary. Arnd