[openfirmware] [commit] r2631 - cpu/arm/mmp2

[repository service]

Author: wmb
Date: Sat Oct 22 05:40:09 2011
New Revision: 2631
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2631

Log:
OLPC XO-1.75 - added delay in low-level suspend/resume code to fix resume failures that occur on some rev C memory configurations.

Modified:
   cpu/arm/mmp2/dramrecal.fth

Modified: cpu/arm/mmp2/dramrecal.fth
==============================================================================
--- cpu/arm/mmp2/dramrecal.fth	Sat Oct 22 05:40:03 2011	(r2630)
+++ cpu/arm/mmp2/dramrecal.fth	Sat Oct 22 05:40:09 2011	(r2631)
@@ -86,6 +86,8 @@
    mov   r1, #0x40000000     \ DLL_UPDATE_EN
    str   r1, [r0, #0x240]    \ PHY_CTRL14
 
+   mov   r1, #0x0300  begin  decs r1,1  0= until  \ Delay, needed for some DRAMs
+
    mov   r1, #0x80           \ Exit Self Refresh value
    str   r1, [r0, #0x120]    \ USER_INITIATED_COMMAND0