Merge branch 'master' of git://git.denx.de/u-boot-net

1 files changed, 25 insertions, 0 deletions

diff --git a/doc/README.designware_eth b/doc/README.designware_eth
new file mode 100644
index 0000000..25ec6bd
--- /dev/null
+++ b/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.