[people/ms/u-boot.git] / doc / README.designware_eth

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.
Commit	Line	Data
5b1b1883 VK	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.