3 files changed, 4 insertions, 2 deletions

diff --git a/Documentation/i2c/busses/i2c-piix4 b/Documentation/i2c/busses/i2c-piix4
index 1e6634f54c50..a370b2047cf3 100644
--- a/Documentation/i2c/busses/i2c-piix4
+++ b/Documentation/i2c/busses/i2c-piix4
@@ -13,7 +13,7 @@ Supported adapters:
   * AMD SP5100 (SB700 derivative found on some server mainboards)
     Datasheet: Publicly available at the AMD website
     http://support.amd.com/us/Embedded_TechDocs/44413.pdf
-  * AMD Hudson-2
+  * AMD Hudson-2, CZ
     Datasheet: Not publicly available
   * Standard Microsystems (SMSC) SLC90E66 (Victory66) southbridge
     Datasheet: Publicly available at the SMSC website http://www.smsc.com
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 631736e2e7ed..4faf02b3657d 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -150,6 +150,7 @@ config I2C_PIIX4
             ATI SB700/SP5100
             ATI SB800
             AMD Hudson-2
+            AMD CZ
             Serverworks OSB4
             Serverworks CSB5
             Serverworks CSB6
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 39ab78c1a02c..d05ad590af29 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -22,7 +22,7 @@
         Intel PIIX4, 440MX
         Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100
         ATI IXP200, IXP300, IXP400, SB600, SB700/SP5100, SB800
-        AMD Hudson-2
+        AMD Hudson-2, CZ
         SMSC Victory66
 
    Note: we assume there can only be one device, with one or more
@@ -522,6 +522,7 @@ static DEFINE_PCI_DEVICE_TABLE(piix4_ids) = {
         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS) },
         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS) },
         { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SMBUS) },
+        { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x790b) },
         { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
                      PCI_DEVICE_ID_SERVERWORKS_OSB4) },
         { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,