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authorTroy Kisky <troy.kisky@boundarydevices.com>2012-10-22 16:40:39 +0000
committerStefano Babic <sbabic@denx.de>2013-01-28 06:57:49 +0100
commitc30eab2ddd5d2238e06ea2acde91620019ea7f85 (patch)
tree5a67ca57b735ae8d0899582af2fc6dded22628ee /doc
parentf093088214948bbf7a63e398da62904db30316d4 (diff)
doc/README.fec_mxc: add documentation
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
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diff --git a/doc/README.fec_mxc b/doc/README.fec_mxc
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+U-boot config options used in fec_mxc.c
+
+CONFIG_FEC_MXC
+ Selects fec_mxc.c to be compiled into u-boot.
+
+CONFIG_MII
+ Must be defined if CONFIG_FEC_MXC is defined.
+
+CONFIG_FEC_XCV_TYPE
+ Defaults to MII100 for 100 Base-tx.
+ RGMII selects 1000 Base-tx reduced pin count interface.
+ RMII selects 100 Base-tx reduced pin count interface.
+
+CONFIG_FEC_MXC_SWAP_PACKET
+ Forced on iff MX28.
+ Swaps the bytes order of all words(4 byte units) in the packet.
+ This should not be specified by a board file. It is cpu specific.
+
+CONFIG_PHYLIB
+ fec_mxc supports PHYLIB and should be used for new boards.
+
+CONFIG_FEC_MXC_NO_ANEG
+ Relevant only if PHYLIB not used. Skips auto-negotiation restart.
+
+CONFIG_FEC_MXC_PHYADDR
+ Optional, selects the exact phy address that should be connected
+ and function fecmxc_initialize will try to initialize it.