[commit] r2502 - cpu/arm/olpc/1.75

[repository service]

Author: wmb
Date: Fri Sep  2 22:23:04 2011
New Revision: 2502
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2502

Log:
OLPC XO-1.75 - when reprogramming the EC FLASH, skip the page that contains the EC configuration flags.

Modified:
   cpu/arm/olpc/1.75/ecflash.fth
   cpu/arm/olpc/1.75/edi.fth

Modified: cpu/arm/olpc/1.75/ecflash.fth
==============================================================================
--- cpu/arm/olpc/1.75/ecflash.fth	Fri Sep  2 21:22:45 2011	(r2501)
+++ cpu/arm/olpc/1.75/ecflash.fth	Fri Sep  2 22:23:04 2011	(r2502)
@@ -46,7 +46,6 @@
    load-base /ec-flash + /ec-flash 0 " read-flash" $call-ec
 [else]
    use-edi-spi  edi-open
-   ." Erasing ..."  erase-chip cr
    ." Writing ..."  load-base /ec-flash 0 edi-program-flash cr
    ." Verifying ..."
    load-base /ec-flash + /ec-flash 0 edi-read-flash

Modified: cpu/arm/olpc/1.75/edi.fth
==============================================================================
--- cpu/arm/olpc/1.75/edi.fth	Fri Sep  2 21:22:45 2011	(r2501)
+++ cpu/arm/olpc/1.75/edi.fth	Fri Sep  2 22:23:04 2011	(r2502)
@@ -131,13 +131,17 @@
    h# 70 flash-cmd                ( )
    wait-flash-busy                ( )
 ;
+h# 7e80 constant ec-flags-offset
 : edi-program-flash  ( adr len offset -- )
-   cr
-   swap  0  ?do
-      (cr i .
-      over i +  over i +  edi-program-page  ( adr offset )
-   /flash-page +loop    ( adr offset )
-   2drop                ( )
+   cr                                          ( adr len offset )
+   swap  0  ?do                                ( adr offset )
+      (cr i .                                  ( adr offset )
+      dup i + ec-flags-offset <>  if           ( adr offset )
+         dup i + erase-page                    ( adr offset )
+         over i +  over i +  edi-program-page  ( adr offset )
+      then                                     ( adr offset )
+   /flash-page +loop                           ( adr offset )
+   2drop                                       ( )
 ;
 : edi-read-flash  ( adr len offset -- )
    over 0=  if  3drop exit  then  ( adr len offset )