[OpenBIOS] r591 - cpu/x86/pc/olpc

[svn at openbios.org]

Author: wmb
Date: 2007-08-31 03:15:01 +0200 (Fri, 31 Aug 2007)
New Revision: 591

Added:
   cpu/x86/pc/olpc/setwp.fth
Log:
Added "setwp.fth" file.





Added: cpu/x86/pc/olpc/setwp.fth
===================================================================
--- cpu/x86/pc/olpc/setwp.fth	                        (rev 0)
+++ cpu/x86/pc/olpc/setwp.fth	2007-08-31 01:15:01 UTC (rev 591)
@@ -0,0 +1,14 @@
+\ Set the write protect tag.  This is used to convert unlocked prototype
+\ machined to locked machines for testing the firmware security.  This
+\ should not be necessary once mass production systems start coming from
+\ the factor with the "wp" tag set.
+
+: set-wp  ( -- )
+   h# fffefffe 2  " wp"  $=  if  ." wp is already set" cr  exit  then
+   h# fffefffe 2  " ww"  $=  0=  abort" No ww tag"
+   spi-start  spi-identify
+   " wp"  h# efffe  write-spi-flash
+   h# fffefffe 2  " wp"  $=  if  ." Succeeded" cr  then
+   spi-reprogrammed
+;
+set-wp