diff --git a/src/southbridge/amd/cimx/sb700/late.c b/src/southbridge/amd/cimx/sb700/late.c
index 4e51e0a3e3..be2b8cd863 100644
--- a/src/southbridge/amd/cimx/sb700/late.c
+++ b/src/southbridge/amd/cimx/sb700/late.c
@@ -23,6 +23,7 @@
 #include <device/pci_ids.h>
 #include <arch/ioapic.h>
 #include <device/smbus.h>       /* smbus_bus_operations */
+#include <pc80/mc146818rtc.h>
 #include <console/console.h>    /* printk */
 #include "lpc.h"                /* lpc_read_resources */
 #include "Platform.h"   /* Platfrom Specific Definitions */
@@ -72,11 +73,20 @@ static void lpc_enable_resources(device_t dev)
 	printk(BIOS_SPEW, "SB700 - Late.c - %s - End.\n", __func__);
 }
 
+static void lpc_init(device_t dev)
+{
+	printk(BIOS_DEBUG, "SB700 - Late.c - lpc_init - Start.\n");
+
+	rtc_check_update_cmos_date(RTC_HAS_ALTCENTURY);
+
+	printk(BIOS_DEBUG, "SB700 - Late.c - lpc_init - End.\n");
+}
+
 static struct device_operations lpc_ops = {
 	.read_resources = lpc_read_resources,
 	.set_resources = lpc_set_resources,
 	.enable_resources = lpc_enable_resources,
-	.init = 0,
+	.init = lpc_init,
 	.scan_bus = scan_static_bus,
 	.ops_pci = &lops_pci,
 };
diff --git a/src/southbridge/amd/cimx/sb800/late.c b/src/southbridge/amd/cimx/sb800/late.c
index 0ce82b3307..7286a6d16d 100644
--- a/src/southbridge/amd/cimx/sb800/late.c
+++ b/src/southbridge/amd/cimx/sb800/late.c
@@ -23,6 +23,7 @@
 #include <device/pci_ids.h>
 #include <arch/ioapic.h>
 #include <device/smbus.h>	/* smbus_bus_operations */
+#include <pc80/mc146818rtc.h>
 #include <console/console.h>	/* printk */
 #include <arch/acpi.h>
 #include "lpc.h"		/* lpc_read_resources */
@@ -120,11 +121,20 @@ static struct pci_operations lops_pci = {
 	.set_subsystem = pci_dev_set_subsystem,
 };
 
+static void lpc_init(device_t dev)
+{
+	printk(BIOS_DEBUG, "SB800 - Late.c - lpc_init - Start.\n");
+
+	rtc_check_update_cmos_date(RTC_HAS_ALTCENTURY);
+
+	printk(BIOS_DEBUG, "SB800 - Late.c - lpc_init - End.\n");
+}
+
 static struct device_operations lpc_ops = {
         .read_resources = lpc_read_resources,
         .set_resources = lpc_set_resources,
         .enable_resources = pci_dev_enable_resources,
-        .init = 0,
+        .init = lpc_init,
         .scan_bus = scan_static_bus,
         .ops_pci = &lops_pci,
 };
diff --git a/src/southbridge/amd/cimx/sb900/late.c b/src/southbridge/amd/cimx/sb900/late.c
index 71c65e31c6..85485edfb6 100644
--- a/src/southbridge/amd/cimx/sb900/late.c
+++ b/src/southbridge/amd/cimx/sb900/late.c
@@ -22,6 +22,7 @@
 #include <device/pci.h>		/* device_operations */
 #include <device/pci_ids.h>
 #include <device/smbus.h>	/* smbus_bus_operations */
+#include <pc80/mc146818rtc.h>
 #include <console/console.h>	/* printk */
 #include "lpc.h"		/* lpc_read_resources */
 #include "SbPlatform.h" 	/* Platfrom Specific Definitions */
@@ -98,6 +99,8 @@ static void lpc_init(device_t dev)
 	printk(BIOS_DEBUG, "SB900 - Late.c - lpc_init - Start.\n");
 	/* SB Configure HPET base and enable bit */
 //-	hpetInit(sb_config, &(sb_config->BuildParameters));
+	rtc_check_update_cmos_date(RTC_HAS_ALTCENTURY);
+
 	printk(BIOS_DEBUG, "SB900 - Late.c - lpc_init - End.\n");
 }
 
diff --git a/src/southbridge/amd/sb600/lpc.c b/src/southbridge/amd/sb600/lpc.c
index 6f16ea81c7..22945a7e8e 100644
--- a/src/southbridge/amd/sb600/lpc.c
+++ b/src/southbridge/amd/sb600/lpc.c
@@ -60,6 +60,7 @@ static void lpc_init(device_t dev)
 	byte &= ~(1 << 1);
 	pci_write_config8(dev, 0x78, byte);
 
+	rtc_check_update_cmos_date(RTC_HAS_ALTCENTURY);
 }
 
 static void sb600_lpc_read_resources(device_t dev)
diff --git a/src/southbridge/amd/sb700/lpc.c b/src/southbridge/amd/sb700/lpc.c
index c968927854..be940e3d2f 100644
--- a/src/southbridge/amd/sb700/lpc.c
+++ b/src/southbridge/amd/sb700/lpc.c
@@ -81,6 +81,8 @@ static void lpc_init(device_t dev)
 	printk(BIOS_DEBUG, "SLP_TYP type was %x\n", acpi_slp_type);
 	}
 #endif
+
+	rtc_check_update_cmos_date(RTC_HAS_ALTCENTURY);
 }
 
 void set_cbmem_toc(struct cbmem_entry *toc)
diff --git a/src/southbridge/amd/sb800/lpc.c b/src/southbridge/amd/sb800/lpc.c
index 4e2031f9c5..3cb0789939 100644
--- a/src/southbridge/amd/sb800/lpc.c
+++ b/src/southbridge/amd/sb800/lpc.c
@@ -67,6 +67,8 @@ static void lpc_init(device_t dev)
 	byte = pci_read_config8(dev, 0xBB);
 	byte |= 1 << 0 | 1 << 3;
 	pci_write_config8(dev, 0xBB, byte);
+
+	rtc_check_update_cmos_date(RTC_HAS_ALTCENTURY);
 }
 
 static void sb800_lpc_read_resources(device_t dev)