kern/177832: [mips] [gpio] GPIO and RF LED do not function on UBNT Routerstation

[Petko Bordjukov]

>Number:         177832
>Category:       kern
>Synopsis:       [mips] [gpio] GPIO and RF LED do not function on UBNT Routerstation
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Apr 13 10:30:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Petko Bordjukov
>Release:        10.0-CURRENT
>Organization:
>Environment:
FreeBSD rtrf3n 10.0-CURRENT FreeBSD 10.0-CURRENT #39 r249144M: Fri Apr  5 14:04:07 EEST 2013     root at virtbsd10:/usr/obj/mips.mips/usr/src/sys/ROUTERSTATION  mips
>Description:
The current configuration of the kernel for the UBNT Routerstation does not allow proper GPIO control.
>How-To-Repeat:
# echo 1 > /dev/led/rf

or

# gpioctl -f /dev/gpioc0 -l
>Fix:
Copy over to ROUTERSTATION.hints the portion of RSPRO.hints that remedies this issue.

Patch attached with submission follows:

Index: ROUTERSTATION.hints
===================================================================
--- ROUTERSTATION.hints	(revision 249406)
+++ ROUTERSTATION.hints	(working copy)
@@ -12,6 +12,24 @@
 # Uncomment this hint for RS (not PRO)
 hint.arge.1.phymask=0x30000
 
+# Don't flip on anything that isn't already enabled.
+# This includes leaving the SPI CS1/CS2 pins as GPIO pins as they're
+# not used here.
+hint.gpio.0.function_set=0x00000000
+hint.gpio.0.function_clear=0x00000000
+
+# These are the GPIO LEDs and buttons which can be software controlled.
+hint.gpio.0.pinmask=0x000000ff
+
+# GPIO 0: Pin 1
+# GPIO 1: Pin 2
+# GPIO 2: RF LED
+# GPIO 3: Pin 3
+# GPIO 4: Pin 4
+# GPIO 5: Pin 5
+# GPIO 6: Pin 6
+# GPIO 7: Pin 7
+
 # RF led
 hint.gpioled.0.at="gpiobus0"
 hint.gpioled.0.name="rf"


>Release-Note:
>Audit-Trail:
>Unformatted: