| Vipin KUMAR | 1f87312 | 2010-06-29 10:53:34 +0530 | [diff] [blame] | 1 | This driver supports Designware Ethernet Controller provided by Synopsis. |
| 2 | |
| 3 | The driver is enabled by CONFIG_DESIGNWARE_ETH. |
| 4 | |
| 5 | The driver has been developed and tested on SPEAr platforms. By default, the |
| 6 | MDIO interface works at 100/Full. #defining the below options in board |
| 7 | configuration file changes this behavior. |
| 8 | |
| 9 | Call an subroutine from respective board/.../board.c |
| 10 | designware_initialize(u32 id, ulong base_addr, u32 phy_addr); |
| 11 | |
| 12 | The various options suported by the driver are |
| 13 | 1. CONFIG_DW_ALTDESCRIPTOR |
| 14 | Define this to use the Alternate/Enhanced Descriptor configurations. |
| 15 | 1. CONFIG_DW_AUTONEG |
| 16 | Define this to autonegotiate with the host before proceeding with mac |
| 17 | level configuration. This obviates the definitions of CONFIG_DW_SPEED10M |
| 18 | and CONFIG_DW_DUPLEXHALF. |
| 19 | 2. CONFIG_DW_SPEED10M |
| 20 | Define this to change the default behavior from 100Mbps to 10Mbps. |
| 21 | 3. CONFIG_DW_DUPLEXHALF |
| 22 | Define this to change the default behavior from Full Duplex to Half. |
| 23 | 4. CONFIG_DW_SEARCH_PHY |
| 24 | Define this to search the phy address. This would overwrite the value |
| 25 | passed as 3rd arg from designware_initialize routine. |