Changeset 3393

Timestamp:

Oct 29, 2012 9:37:21 PM (7 months ago)

Author:

quozl

Message:

OLPC ARM - assign "0 0 reg" properties to several devices

when linux names devices, devices without a reg property will
get a globally assigned incrementing suffix, which may change
depending on which devices are configured. if present, linux
will use the reg property to create a stable name for a device.
using "0 0 reg" will result in a linux name like "0.ols"

from Paul Fox <pgf@…>

Location:

cpu/arm/olpc

Files:

• cl4/leds.fth (modified) (1 diff)
• gpio-i2c.fth (modified) (2 diffs)
• sound.fth (modified) (1 diff)

cpu/arm/olpc/cl4/leds.fth

@@ -5 +5 @@
    " ols" device-name
    " olpc,xo-light-sensor" +compatible
+   0 0 reg  \ So linux will assign a static device name
 end-package
 

cpu/arm/olpc/gpio-i2c.fth

@@ -35 +35 @@
       1 " #address-cells" integer-property
       1 " #size-cells" integer-property
+
+      0 0 reg  \ So linux will assign a static device name
+
       : encode-unit  ( phys.. -- str )  push-hex (u.) pop-base  ;
       : decode-unit  ( str -- phys.. )  push-hex  $number  if  0  then  pop-base  ;
@@ -77 +80 @@
       1 " #address-cells" integer-property
       1 " #size-cells" integer-property
+
+      0 0 reg  \ So linux will assign a static device name
+
       : encode-unit  ( phys.. -- str )  push-hex (u.) pop-base  ;
       : decode-unit  ( str -- phys.. )  push-hex  $number  if  0  then  pop-base  ;

cpu/arm/olpc/sound.fth

@@ -759 +759 @@
    \ The name that was hardcoded in the Linux driver was OLPC XO-1.75
    " OLPC XO" " model" string-property
+
+   0 0 reg  \ So linux will assign a static device name
 
    : +string  encode-string encode+  ;