diff --git a/src/mainboard/gigabyte/ga_2761gxdk/romstage.c b/src/mainboard/gigabyte/ga_2761gxdk/romstage.c
index 50c52b67c5..da6eb7701e 100644
--- a/src/mainboard/gigabyte/ga_2761gxdk/romstage.c
+++ b/src/mainboard/gigabyte/ga_2761gxdk/romstage.c
@@ -40,7 +40,6 @@
 #include <cpu/amd/model_fxx_rev.h>
 #include "southbridge/sis/sis966/sis966.h"
 #include "southbridge/sis/sis966/early_smbus.c"
-#include "southbridge/sis/sis966/enable_rom.c"
 #include "northbridge/amd/amdk8/raminit.h"
 #include "cpu/amd/model_fxx/apic_timer.c"
 #include "lib/delay.c"
@@ -131,7 +130,6 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		/* Allow the HT devices to be found */
 		enumerate_ht_chain();
 		sio_setup();
-		sis966_enable_rom();
         }
 
         if (bist == 0)
diff --git a/src/southbridge/sis/sis966/Kconfig b/src/southbridge/sis/sis966/Kconfig
index bbb5ee971b..867d08c347 100644
--- a/src/southbridge/sis/sis966/Kconfig
+++ b/src/southbridge/sis/sis966/Kconfig
@@ -2,6 +2,11 @@ config SOUTHBRIDGE_SIS_SIS966
 	bool
 	select IOAPIC
 	select HAVE_USBDEBUG
+	select TINY_BOOTBLOCK
+
+config BOOTBLOCK_SOUTHBRIDGE_INIT
+	string
+	default "southbridge/sis/sis966/bootblock.c" if SOUTHBRIDGE_SIS_SIS966
 
 config ID_SECTION_OFFSET
 	hex
diff --git a/src/southbridge/sis/sis966/enable_rom.c b/src/southbridge/sis/sis966/bootblock.c
similarity index 76%
rename from src/southbridge/sis/sis966/enable_rom.c
rename to src/southbridge/sis/sis966/bootblock.c
index 63ef616563..1ff3cda2b4 100644
--- a/src/southbridge/sis/sis966/enable_rom.c
+++ b/src/southbridge/sis/sis966/bootblock.c
@@ -23,19 +23,25 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-#if CONFIG_HT_CHAIN_END_UNITID_BASE < CONFIG_HT_CHAIN_UNITID_BASE
-	#define SIS966_DEVN_BASE	CONFIG_HT_CHAIN_END_UNITID_BASE
-#else
-	#define SIS966_DEVN_BASE	CONFIG_HT_CHAIN_UNITID_BASE
-#endif
+#include <stdint.h>
+#include <arch/io.h>
+#include <arch/romcc_io.h>
+#include <device/pci_ids.h>
+#include "sis966.h"
 
 static void sis966_enable_rom(void)
 {
 	device_t addr;
 
-	/* Enable 4MB rom access at 0xFFC00000 - 0xFFFFFFFF */
-	addr = pci_locate_device(PCI_ID(0x1039, 0x0966), 0);
+	/* Enable 4MB ROM access at 0xFFC00000 - 0xFFFFFFFF. */
+	addr = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS,
+					PCI_DEVICE_ID_SIS_SIS966_LPC), 0);
 
-	/* Set the 4MB enable bit bit */
+	/* Set the 4MB enable bit(s). */
 	pci_write_config8(addr, 0x40, pci_read_config8(addr, 0x40) | 0x11);
 }
+
+static void bootblock_southbridge_init(void)
+{
+	sis966_enable_rom();
+}
diff --git a/src/southbridge/sis/sis966/enable_usbdebug.c b/src/southbridge/sis/sis966/enable_usbdebug.c
index a82e941b3a..fb20c960f3 100644
--- a/src/southbridge/sis/sis966/enable_usbdebug.c
+++ b/src/southbridge/sis/sis966/enable_usbdebug.c
@@ -30,12 +30,6 @@
 #include <device/pci_def.h>
 #include "sis966.h"
 
-#if CONFIG_HT_CHAIN_END_UNITID_BASE < CONFIG_HT_CHAIN_UNITID_BASE
-#define SIS966_DEVN_BASE CONFIG_HT_CHAIN_END_UNITID_BASE
-#else
-#define SIS966_DEVN_BASE CONFIG_HT_CHAIN_UNITID_BASE
-#endif
-
 void set_debug_port(unsigned int port)
 {
 	u32 dword;
diff --git a/src/southbridge/sis/sis966/ide.c b/src/southbridge/sis/sis966/ide.c
index c57be5ade7..90ea002a5a 100644
--- a/src/southbridge/sis/sis966/ide.c
+++ b/src/southbridge/sis/sis966/ide.c
@@ -30,6 +30,7 @@
 #include <device/pci_ops.h>
 #include <arch/io.h>
 #include "sis966.h"
+#include "chip.h"
 
 uint8_t	SiS_SiS5513_init[49][3]={
 {0x04, 0xFF, 0x05},
diff --git a/src/southbridge/sis/sis966/sis966.h b/src/southbridge/sis/sis966/sis966.h
index 324beef3c9..a451bf7e55 100644
--- a/src/southbridge/sis/sis966/sis966.h
+++ b/src/southbridge/sis/sis966/sis966.h
@@ -22,6 +22,12 @@
 #ifndef SIS966_H
 #define SIS966_H
 
+#if CONFIG_HT_CHAIN_END_UNITID_BASE < CONFIG_HT_CHAIN_UNITID_BASE
+#define SIS966_DEVN_BASE CONFIG_HT_CHAIN_END_UNITID_BASE
+#else
+#define SIS966_DEVN_BASE CONFIG_HT_CHAIN_UNITID_BASE
+#endif
+
 #define DEBUG_AZA 0
 #define DEBUG_NIC 0
 #define DEBUG_IDE 0
@@ -29,9 +35,12 @@
 #define DEBUG_USB 0
 #define DEBUG_USB2 0
 
-#include "chip.h"
-
+#if !defined(__ROMCC__)
 void sis966_enable(device_t dev);
+#endif
+
+#if defined(__PRE_RAM__) && !defined(__ROMCC__)
 void sis966_enable_usbdebug(unsigned int port);
+#endif
 
 #endif /* SIS966_H */