- fix SMM code relocation race

- make SMM relocation debugging Kconfig accessible
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5676 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/cpu/x86/smm/smmrelocate.S

@@ -1,7 +1,7 @@
 /*
  * This file is part of the coreboot project.
  *
- * Copyright (C) 2008 coresystems GmbH
+ * Copyright (C) 2008-2010 coresystems GmbH
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -24,12 +24,15 @@
 
 // FIXME: Is this piece of code southbridge specific, or
 // can it be cleaned up so this include is not required?
-// It's needed right now because we get our PM_BASE from
+// It's needed right now because we get our DEFAULT_PMBASE from
 // here.
+#if defined(CONFIG_SOUTHBRIDGE_INTEL_I82801GX)
 #include "../../../southbridge/intel/i82801gx/i82801gx.h"
-
-#undef DEBUG_SMM_RELOCATION
-//#define DEBUG_SMM_RELOCATION
+#elif defined(CONFIG_SOUTHBRIDGE_INTEL_I82801DX)
+#include "../../../southbridge/intel/i82801dx/i82801dx.h"
+#else
+#error "Southbridge needs SMM handler support."
+#endif
 
 #define LAPIC_ID 0xfee00020
 
@@ -125,7 +128,7 @@ smm_relocate:
 	addr32 movl %eax, (%ebx)
 
 
-	/* The next section of code is hardware specific */
+	/* The next section of code is potentially southbridge specific */
 
 	/* Clear SMI status */
 	movw $(DEFAULT_PMBASE + 0x34), %dx
@@ -143,8 +146,9 @@ smm_relocate:
 	orl $(1 << 1), %eax
 	outl %eax, %dx
 
-	/* End of hardware specific section. */
-#ifdef DEBUG_SMM_RELOCATION
+	/* End of southbridge specific section. */
+
+#if defined(CONFIG_DEBUG_SMM_RELOCATION) && CONFIG_DEBUG_SMM_RELOCATION
 	/* print [SMM-x] so we can determine if CPUx went to SMM */
 	movw $CONFIG_TTYS0_BASE, %dx
 	mov $'[', %al