fixes for tyan

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1392 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 55 insertions, 13 deletions

diff --git a/src/mainboard/tyan/s4880/failover.c b/src/mainboard/tyan/s4880/failover.c
index 8eeeaef7e1..b22abfea06 100644
--- a/src/mainboard/tyan/s4880/failover.c
+++ b/src/mainboard/tyan/s4880/failover.c
@@ -3,36 +3,78 @@
 #include <device/pci_def.h>
 #include <device/pci_ids.h>
 #include <arch/io.h>
-#include "arch/romcc_io.h"
+#include <arch/romcc_io.h>
+#include <arch/smp/lapic.h>
 #include "pc80/mc146818rtc_early.c"
 #include "southbridge/amd/amd8111/amd8111_enable_rom.c"
 #include "northbridge/amd/amdk8/early_ht.c"
 #include "cpu/p6/boot_cpu.c"
 #include "northbridge/amd/amdk8/reset_test.c"
 
+#define HAVE_REGPARM_SUPPORT 0
+#if HAVE_REGPARM_SUPPORT
+static unsigned long main(unsigned long bist)
+{
+#else
 static void main(void)
 {
-	/* Nothing special needs to be done to find bus 0 */
-	/* Allow the HT devices to be found */
-	enumerate_ht_chain(0);
+	unsigned long bist = 0;
+#endif
+	/* Make cerain my local apic is useable */
+	enable_lapic();
 
-	/* Setup the 8111 */
-	amd8111_enable_rom();
-
-	/* Is this a cpu reset? */
+	/* Is this a cpu only reset? */
 	if (cpu_init_detected()) {
 		if (last_boot_normal()) {
-			asm("jmp __normal_image");
+			goto normal_image;
 		} else {
-			asm("jmp __cpu_reset");
+			goto cpu_reset;
 		}
 	}
 	/* Is this a secondary cpu? */
-	else if (!boot_cpu() && last_boot_normal()) {
-		asm("jmp __normal_image");
+	if (!boot_cpu()) {
+		if (last_boot_normal()) {
+			goto normal_image;
+		} else {
+			goto fallback_image;
+		}
+	}
+	
+
+	/* Nothing special needs to be done to find bus 0 */
+	/* Allow the HT devices to be found */
+	enumerate_ht_chain();
+	
+	/* Setup the 8111 */
+	amd8111_enable_rom();
+
+	/* Is this a deliberate reset by the bios */
+	if (bios_reset_detected() && last_boot_normal()) {
+		goto normal_image;
 	}
 	/* This is the primary cpu how should I boot? */
 	else if (do_normal_boot()) {
-		asm("jmp __normal_image");
+		goto normal_image;
+	}
+	else {
+		goto fallback_image;
 	}
+ normal_image:
+	asm("jmp __normal_image" 
+		: /* outputs */ 
+		: "a" (bist) /* inputs */
+		: /* clobbers */
+		);
+ cpu_reset:
+	asm("jmp __cpu_reset"
+		: /* outputs */ 
+		: "a"(bist) /* inputs */
+		: /* clobbers */
+		);
+ fallback_image:
+#if HAVE_REGPARM_SUPPORT
+	return bist;
+#else
+	return;
+#endif
 }