[openfirmware] [commit] r2042 - cpu/arm/olpc/1.75

[repository service]

Author: wmb
Date: Thu Nov 25 05:55:14 2010
New Revision: 2042
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2042

Log:
OLPC XO-1.75 SD driver - tune data timing for 50 MHz operation.

Modified:
   cpu/arm/olpc/1.75/sdregs.fth

Modified: cpu/arm/olpc/1.75/sdregs.fth
==============================================================================
--- cpu/arm/olpc/1.75/sdregs.fth	Thu Nov 25 05:54:10 2010	(r2041)
+++ cpu/arm/olpc/1.75/sdregs.fth	Thu Nov 25 05:55:14 2010	(r2042)
@@ -18,5 +18,8 @@
 ;

: vendor-modes  ( -- )  ;
-: ?cafe-fpga-quirk  ( -- )  ;
+
+\ This tunes the data timing for better operation at 50 MHz
+: ?cafe-fpga-quirk  ( -- )  h# 10a chip + rw@  h# 3f00 or  h# 10a chip + rw!  ;
+
 : ?via-quirk  ( -- )  ;