3 Last Update: March 2, 2004
4 =======================================================================
6 This file contains some handy info regarding U-Boot and the AMCC
7 Ocotea 440gx evalutation board. See the README.ppc440 for additional
11 SWITCH SETTINGS & JUMPERS
12 ==========================
14 Here's what I've been using successfully. If you feel inclined to
15 change things ... please read the docs!
18 ------------------------
31 All others are factory default.
37 See README.ebony for information.
40 ===========================
42 Untested at the time of writing.
44 PPC440GX Ethernet EMACs
45 ===========================
47 All EMAC ports have been tested and are known to work
50 Special note about the Cicada CIS8201:
51 The CIS8201 Gigabit PHY comes up in GMII mode by default.
52 One must hit an extended register to allow use of RGMII mode.
53 This has been done in the 440gx_enet.c file with a #ifdef/endif
56 AMCC does not store the EMAC ethernet addresses within their PIBS bootloader.
57 The addresses contained in the config header file are from my particular
58 board and you _*should*_ change them to reflect your board either in the
59 config file and/or in your environment variables. I found the addresses on
60 labels on the bottom side of the board.
63 BDI2k or JTAG Debugging
64 ===========================
66 For ease of debugging you can swap the small boot flash and external SRAM
67 by changing U46:3 to on. You can then use the sram as your boot flash by
68 loading the sram via the jtag debugger.
73 <tsawyer@sandburst.com>