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Wolfgang Denk0c8721a2005-09-23 11:05:55 +02001 AMCC Ocotea Board
wdenkc3f9d492004-03-14 00:59:59 +00002
3 Last Update: March 2, 2004
4=======================================================================
5
Wolfgang Denk0c8721a2005-09-23 11:05:55 +02006This file contains some handy info regarding U-Boot and the AMCC
wdenkc3f9d492004-03-14 00:59:59 +00007Ocotea 440gx evalutation board. See the README.ppc440 for additional
8information.
9
10
11SWITCH SETTINGS & JUMPERS
12==========================
13
14Here's what I've been using successfully. If you feel inclined to
15change things ... please read the docs!
16
17DIPSW U46 U80
18------------------------
19SW 1 off off
20SW 2 on off
21SW 3 off off
22SW 4 off off
23SW 5 off off
24SW 6 on on
25SW 7 on off
26SW 8 on off
27
28J41: strapped
29J42: open
30
31All others are factory default.
32
33
34I2C Information
35=====================
36
37See README.ebony for information.
38
39PCI
40===========================
41
42Untested at the time of writing.
43
44PPC440GX Ethernet EMACs
45===========================
46
47All EMAC ports have been tested and are known to work
48with EPS Group 4.
49
50Special 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
54 pair.
55
Wolfgang Denk0c8721a2005-09-23 11:05:55 +020056AMCC does not store the EMAC ethernet addresses within their PIBS bootloader.
wdenkc3f9d492004-03-14 00:59:59 +000057The addresses contained in the config header file are from my particular
58board and you _*should*_ change them to reflect your board either in the
59config file and/or in your environment variables. I found the addresses on
60labels on the bottom side of the board.
61
62
63BDI2k or JTAG Debugging
64===========================
65
66For ease of debugging you can swap the small boot flash and external SRAM
67by changing U46:3 to on. You can then use the sram as your boot flash by
68loading the sram via the jtag debugger.
69
70
71Regards,
72--Travis
73<tsawyer@sandburst.com>