[coreboot] [PATCH] AMD Persimmon: disable memory clear for boot time reduction

[Scott Duplichan]

The attached patch (along with the 04/30/2011 Persimmon patch set)
is needed to get the 640 ms coreboot+seabios+dos boot time.


Signed-off-by: Scott Duplichan <scott at notabs.org>

Index: src/mainboard/amd/persimmon/BiosCallOuts.c
===================================================================
--- src/mainboard/amd/persimmon/BiosCallOuts.c	(revision 6556)
+++ src/mainboard/amd/persimmon/BiosCallOuts.c	(working copy)
@@ -512,6 +512,9 @@
       Data8 &= ~(UINT8)BIT6;
       Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8);
   }
+
+  // disable memory clear for boot time reduction
+  MemData->ParameterListPtr->EnableMemClr = FALSE;
   return Status;
 }
 /*  Call the host environment interface to provide a user hook opportunity.
*/
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