X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=doc%2FREADME.INCA-IP;h=132915292ea65b607a27743f5271efe9faa3bba4;hb=e3edcb36f14f0aabb6f50e96014d6877f73d64ea;hp=517eec04012f57d1366572885bd5572849b7ddba;hpb=3e38691e8f7aa0d9b498d76c7279ddec6e4946f3;p=platform%2Fkernel%2Fu-boot.git diff --git a/doc/README.INCA-IP b/doc/README.INCA-IP index 517eec0..1329152 100644 --- a/doc/README.INCA-IP +++ b/doc/README.INCA-IP @@ -41,4 +41,17 @@ to install a U-Boot image into flash. go 0xb0000000 +Ethernet autonegotiation needs some time to complete. Instead of +delaying the boot process in all cases, we just start the +autonegotiation process when U-Boot comes up and that is all. Most +likely, it will complete by the time the network transfer is +attempted for the first time. In the worst case, if a transfer is +attempted before the autonegotiation is complete, just a single +packet would be lost resulting in a single timeout error, and then +the transfer would proceed normally. So the time that we would have +lost unconditionally waiting for the autonegotiation to complete, we +have to wait only if the file transfer is started immediately after +reset. We've verified that this works for all the clock +configurations. + (C) 2003 Wolfgang Denk