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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.
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