From c30eab2ddd5d2238e06ea2acde91620019ea7f85 Mon Sep 17 00:00:00 2001 From: Troy Kisky Date: Mon, 22 Oct 2012 16:40:39 +0000 Subject: [PATCH] doc/README.fec_mxc: add documentation Signed-off-by: Troy Kisky --- doc/README.fec_mxc | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 doc/README.fec_mxc diff --git a/doc/README.fec_mxc b/doc/README.fec_mxc new file mode 100644 index 0000000000..72a1d595f5 --- /dev/null +++ b/doc/README.fec_mxc @@ -0,0 +1,27 @@ +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. -- 2.25.1