summaryrefslogtreecommitdiff
path: root/doc/README.designware_eth
diff options
context:
space:
mode:
authorVipin KUMAR <vipin.kumar@st.com>2010-06-29 10:53:34 +0530
committerBen Warren <biggerbadderben@gmail.com>2010-07-12 00:08:05 -0700
commit5b1b1883ffcb75de71a0b4e66b279c88ae1e15fc (patch)
treeffc67591a22a14a71b994141a0b61682de775df5 /doc/README.designware_eth
parentc19a20d5bd3c2196fb1562a329191e2347d5a40a (diff)
downloadu-boot-imx-5b1b1883ffcb75de71a0b4e66b279c88ae1e15fc.zip
u-boot-imx-5b1b1883ffcb75de71a0b4e66b279c88ae1e15fc.tar.gz
u-boot-imx-5b1b1883ffcb75de71a0b4e66b279c88ae1e15fc.tar.bz2
SPEAr : Network driver support added
Designware network driver support added. This is a Synopsys ethernet controller Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Diffstat (limited to 'doc/README.designware_eth')
-rw-r--r--doc/README.designware_eth25
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.