[openfirmware] [commit] r1958 - dev/hdaudio

[repository service]

Author: wmb
Date: Tue Sep 21 01:58:17 2010
New Revision: 1958
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/1958

Log:
OLPC trac 10371 - Added commentary describing the meaning of some changes in the Conexant HDAudio CODEC vendor node setup values.

Modified:
   dev/hdaudio/start-cx2058x.fth

Modified: dev/hdaudio/start-cx2058x.fth
==============================================================================
--- dev/hdaudio/start-cx2058x.fth	Mon Sep 20 21:34:18 2010	(r1957)
+++ dev/hdaudio/start-cx2058x.fth	Tue Sep 21 01:58:17 2010	(r1958)
@@ -88,6 +88,8 @@
    2D000 place-verb      \ Undocumented register
    2E000 place-verb      \ Undocumented register
    2F000 place-verb      \ Undocumented register  \ Conexant once recommended 2f800 but now are saying 2f000
+                                                  \ 800 enables a debounce delay for class-D overcurrent;
+                                                  \ the latest info is that no-debounce provides better protection
    \ Analog registers
    31000 place-verb      \ Undocumented register
    32000 place-verb      \ Undocumented register
@@ -101,6 +103,8 @@
    3A000 place-verb      \ Undocumented register
    \ Digital registers
    4154d place-verb      \ Undocumented register \ Conexant once recommended 41541 but now are saying 4154d
+                                                 \ "d" instead of "1" turns on Intel ECR15B support, which
+                                                 \ is apparently needed for Window WHQL certification.
    42011 place-verb      \ over-temperature shutdown of class-D amplifier
    43000 place-verb      \ This documented as a status register and thus is presumably read-only.  Why write to it?
    44000 place-verb      \ Undocumented register