pch_gbe: support ML7223 IOH

Support new device OKI SEMICONDUCTOR ML7223 IOH(Input/Output Hub).
The ML7223 IOH is for MP(Media Phone) use.
The ML7223 is companion chip for Intel Atom E6xx series.
The ML7223 is completely compatible for Intel EG20T PCH.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 18 insertions, 1 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index dc280bc8eba2..6c884ef1b069 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2536,7 +2536,7 @@ config S6GMAC
 source "drivers/net/stmmac/Kconfig"
 
 config PCH_GBE
-        tristate "PCH Gigabit Ethernet"
+        tristate "Intel EG20T PCH / OKI SEMICONDUCTOR ML7223 IOH GbE"
         depends on PCI
         select MII
         ---help---
@@ -2548,6 +2548,12 @@ config PCH_GBE
           to Gigabit Ethernet.
           This driver enables Gigabit Ethernet function.
 
+          This driver also can be used for OKI SEMICONDUCTOR IOH(Input/
+          Output Hub), ML7223.
+          ML7223 IOH is for MP(Media Phone) use.
+          ML7223 is companion chip for Intel Atom E6xx series.
+          ML7223 is completely compatible for Intel EG20T PCH.
+
 endif # NETDEV_1000
 
 #
diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c
index 9f6c4025c6ea..56d049a472da 100644
--- a/drivers/net/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/pch_gbe/pch_gbe_main.c
@@ -34,6 +34,10 @@ const char pch_driver_version[] = DRV_VERSION;
 #define PCH_GBE_COPYBREAK_DEFAULT       256
 #define PCH_GBE_PCI_BAR                 1
 
+/* Macros for ML7223 */
+#define PCI_VENDOR_ID_ROHM                      0x10db
+#define PCI_DEVICE_ID_ROHM_ML7223_GBE           0x8013
+
 #define PCH_GBE_TX_WEIGHT         64
 #define PCH_GBE_RX_WEIGHT         64
 #define PCH_GBE_RX_BUFFER_WRITE   16
@@ -2418,6 +2422,13 @@ static DEFINE_PCI_DEVICE_TABLE(pch_gbe_pcidev_id) = {
          .class = (PCI_CLASS_NETWORK_ETHERNET << 8),
          .class_mask = (0xFFFF00)
          },
+        {.vendor = PCI_VENDOR_ID_ROHM,
+         .device = PCI_DEVICE_ID_ROHM_ML7223_GBE,
+         .subvendor = PCI_ANY_ID,
+         .subdevice = PCI_ANY_ID,
+         .class = (PCI_CLASS_NETWORK_ETHERNET << 8),
+         .class_mask = (0xFFFF00)
+         },
         /* required last entry */
         {0}
 };