SPEAr : Network driver support added
Designware network driver support added.
This is a Synopsys ethernet controller
Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/doc/README.designware_eth b/doc/README.designware_eth
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+This driver supports Designware Ethernet Controller provided by Synopsis.
+
+The driver is enabled by CONFIG_DESIGNWARE_ETH.
+
+The driver has been developed and tested on SPEAr platforms. By default, the
+MDIO interface works at 100/Full. #defining the below options in board
+configuration file changes this behavior.
+
+Call an subroutine from respective board/.../board.c
+designware_initialize(u32 id, ulong base_addr, u32 phy_addr);
+
+The various options suported by the driver are
+1. CONFIG_DW_ALTDESCRIPTOR
+ Define this to use the Alternate/Enhanced Descriptor configurations.
+1. CONFIG_DW_AUTONEG
+ Define this to autonegotiate with the host before proceeding with mac
+ level configuration. This obviates the definitions of CONFIG_DW_SPEED10M
+ and CONFIG_DW_DUPLEXHALF.
+2. CONFIG_DW_SPEED10M
+ Define this to change the default behavior from 100Mbps to 10Mbps.
+3. CONFIG_DW_DUPLEXHALF
+ Define this to change the default behavior from Full Duplex to Half.
+4. CONFIG_DW_SEARCH_PHY
+ Define this to search the phy address. This would overwrite the value
+ passed as 3rd arg from designware_initialize routine.