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| author | H. Nikolaus Schaller <hns@goldelico.com> | 2012-03-26 20:55:28 +0200 |
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| committer | H. Nikolaus Schaller <hns@goldelico.com> | 2012-03-26 20:55:28 +0200 |
| commit | 92988a21ad4c4c9504295ccb580c9f806134471b (patch) | |
| tree | 5effc9f14170112450de05c67dafbe8d5034d595 /u-boot/doc/README.designware_eth | |
| parent | ca2b506783b676c95762c54ea24dcfdaae1947c9 (diff) | |
| download | bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.zip bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.tar.gz bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.tar.bz2 | |
added boot script files to repository
Diffstat (limited to 'u-boot/doc/README.designware_eth')
| -rw-r--r-- | u-boot/doc/README.designware_eth | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/u-boot/doc/README.designware_eth b/u-boot/doc/README.designware_eth new file mode 100644 index 0000000..25ec6bd --- /dev/null +++ b/u-boot/doc/README.designware_eth @@ -0,0 +1,25 @@ +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. |