diff options
| author | Hannes Schmelzer <oe5hpm@oevsv.at> | 2016-06-22 12:07:14 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2016-07-12 17:58:48 +0200 |
| commit | 0750701a3f74e831b6cb0ecc69be2f7eff94e819 (patch) | |
| tree | 126f6e9deb958fd687ca55cdaf3ff39bc13ee1b3 /doc | |
| parent | a32b4a03c717e37561505297a39ed02313e654af (diff) | |
| download | u-boot-0750701a3f74e831b6cb0ecc69be2f7eff94e819.zip u-boot-0750701a3f74e831b6cb0ecc69be2f7eff94e819.tar.gz u-boot-0750701a3f74e831b6cb0ecc69be2f7eff94e819.tar.bz2 | |
driver/net/fec: support fixed speed connection
If MAC is directly connected to another MAC (like a switch for example)
we don't need to probe for a phy, autoneogation and so on. We simply
have to setup speed.
Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/README.fec_mxc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/README.fec_mxc b/doc/README.fec_mxc index ed7e47d..9ca6ac2 100644 --- a/doc/README.fec_mxc +++ b/doc/README.fec_mxc @@ -27,6 +27,11 @@ CONFIG_FEC_MXC_PHYADDR Optional, selects the exact phy address that should be connected and function fecmxc_initialize will try to initialize it. +CONFIG_FEC_FIXED_SPEED + Optional, selects a fixed speed on the MAC interface without asking some + phy. This is usefull if there is a direct MAC <-> MAC connection, for + example if the CPU is connected directly via the RGMII interface to a + ethernet-switch. Reading the ethaddr from the SoC eFuses: if CONFIG_FEC_MXC is defined and the U-Boot environment does not contain the |