diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 838dc1c..165c126 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -207,6 +207,7 @@
 	    ATI IXP300
 	    ATI IXP400
 	    ATI SB600
+	    ATI SB700
 	    Serverworks OSB4
 	    Serverworks CSB5
 	    Serverworks CSB6
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 5a52bf5e..debc76c 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -23,7 +23,7 @@
    Supports:
 	Intel PIIX4, 440MX
 	Serverworks OSB4, CSB5, CSB6, HT-1000
-	ATI IXP200, IXP300, IXP400, SB600
+	ATI IXP200, IXP300, IXP400, SB600, SB700
 	SMSC Victory66
 
    Note: we assume there can only be one device, with one SMBus interface.
@@ -399,6 +399,8 @@
 	  .driver_data = 0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SMBUS),
 	  .driver_data = 0 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SMBUS),
+	  .driver_data = 0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4),
 	  .driver_data = 0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5),