[PATCH 6/8 v2] arm: orion5x: Add DT-based support for Netgear WNR854T

[Jamie Lentin]

On 2016-09-12 23:03, Andrew Lunn wrote:
>> Maybe we can instead leave out the PCI support from the new
>> file for now and not delete the legacy board file?

This seems a reasonable compromise. The PCI card the router comes with 
isn't supported by mwl8k mainline anyway (There's STA-only firmware that 
can be extracted from a windows driver and PCI IDs added, but stats 
reporting uses a different format), so it's not a huge loss, although 
many did replace the card with something Atheros-based.

Unfortunately the power regulator on my spare router has stopped 
regulating, which will make more development tricky. But will have a 
look at the PCI conversion if I can get hold of another.

> Jamie, which interrupt do you see the WiFi card using?  If it is
> IRQ_ORION5X_PCIE0_INT, (1 + 11), that is probably easier to deal with
> than if it uses GPIO 4.

Definitely uses GPIO 4.

# cat /proc/interrupts
            CPU0
  17:     165966  bridge-interrupt-ctrl   2 Edge      orion_event
  22:       5119  interrupt-controller   3 Edge      serial
  24:          0  bridge-interrupt-ctrl   3 Edge      orion_wdt
  25:      89504  interrupt-controller  22 Edge      f1072004.mdio-bus
  28:          1  f1010100.gpio   1 Edge      Reset Button
  31:        598  f1010100.gpio   4 Level     mwl8k
  59:        985  interrupt-controller  21 Edge      eth0
Err:          0
# iw dev wlan0 scan > /dev/null ; cat /proc/interrupts
            CPU0
  17:     166424  bridge-interrupt-ctrl   2 Edge      orion_event
  22:       5250  interrupt-controller   3 Edge      serial
  24:          0  bridge-interrupt-ctrl   3 Edge      orion_wdt
  25:      89748  interrupt-controller  22 Edge      f1072004.mdio-bus
  28:          1  f1010100.gpio   1 Edge      Reset Button
  31:        708  f1010100.gpio   4 Level     mwl8k
  59:        985  interrupt-controller  21 Edge      eth0
Err:          0
# sleep 10 ; cat /proc/interrupts
            CPU0
  17:     167985  bridge-interrupt-ctrl   2 Edge      orion_event
  22:       5349  interrupt-controller   3 Edge      serial
  24:          0  bridge-interrupt-ctrl   3 Edge      orion_wdt
  25:      90603  interrupt-controller  22 Edge      f1072004.mdio-bus
  28:          1  f1010100.gpio   1 Edge      Reset Button
  31:        708  f1010100.gpio   4 Level     mwl8k
  59:        995  interrupt-controller  21 Edge      eth0
Err:          0
# iw dev wlan0 scan > /dev/null ; cat /proc/interrupts
            CPU0
  17:     168270  bridge-interrupt-ctrl   2 Edge      orion_event
  22:       5480  interrupt-controller   3 Edge      serial
  24:          0  bridge-interrupt-ctrl   3 Edge      orion_wdt
  25:      90727  interrupt-controller  22 Edge      f1072004.mdio-bus
  28:          1  f1010100.gpio   1 Edge      Reset Button
  31:        818  f1010100.gpio   4 Level     mwl8k
  59:        996  interrupt-controller  21 Edge      eth0
Err:          0

> 
> Thanks
>      Andrew