[commit] r3046 - cpu/arm/mmp2

[repository service]

Author: wmb
Date: Tue Jul 10 21:16:44 2012
New Revision: 3046
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3046

Log:
ARM MMP2 - added io!@ routine for accessing slow IO registers that need to be read back after writing.

Modified:
   cpu/arm/mmp2/mfpr.fth
   cpu/arm/mmp2/socregs.fth

Modified: cpu/arm/mmp2/mfpr.fth
==============================================================================
--- cpu/arm/mmp2/mfpr.fth	Tue Jul 10 10:50:12 2012	(r3045)
+++ cpu/arm/mmp2/mfpr.fth	Tue Jul 10 21:16:44 2012	(r3046)
@@ -46,9 +46,11 @@

: no-update,  ( -- )  8 w,  ;  \ 8 is a reserved bit; the code skips these
 : af@  ( gpio# -- function# )  gpio>mfpr io@  ;
-: af!  ( function# gpio# -- )  gpio>mfpr io!  ;
+: af!  ( function# gpio# -- )  gpio>mfpr io!@  ;

: +edge-clr     ( n -- n' )  h#   40 or  ;
+: +very-slow    ( n -- n' )  h# 0000 or  ;
+: +slow         ( n -- n' )  h# 0800 or  ;
 : +medium       ( n -- n' )  h# 1000 or  ;
 : +fast         ( n -- n' )  h# 1800 or  ;
 : +twsi         ( n -- n' )  h#  400 or  ;

Modified: cpu/arm/mmp2/socregs.fth
==============================================================================
--- cpu/arm/mmp2/socregs.fth	Tue Jul 10 10:50:12 2012	(r3045)
+++ cpu/arm/mmp2/socregs.fth	Tue Jul 10 21:16:44 2012	(r3046)
@@ -4,6 +4,7 @@
 : +io  ( offset -- va )  io-va +  ;
 : io!  ( value offset -- )  +io l!  ;
 : io@  ( offset -- value )  +io l@  ;
+: io!@  ( value offset -- )  tuck io! io@ drop  ;  \ For slow registers like MFPRs

: +apbc  ( offset -- io-offset )  h# 01.5000 +  ;  \ APB Clock Unit
 : +pmua  ( offset -- io-offset )  h# 28.2800 +  ;  \ CPU Power Management Unit