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author | Wolfgang Denk <wd@pollux.denx.de> | 2005-08-15 15:55:00 +0200 |
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committer | Wolfgang Denk <wd@pollux.denx.de> | 2005-08-15 15:55:00 +0200 |
commit | 6bdf430660531aca5f88faeac8657d91595f5b38 (patch) | |
tree | 686faa566a8a69558da9aafdc31c30c03693dd1c /doc | |
parent | 4dc37144f0838e5d36bf35a02ec6205e2ab77c5e (diff) | |
download | u-boot-6bdf430660531aca5f88faeac8657d91595f5b38.zip u-boot-6bdf430660531aca5f88faeac8657d91595f5b38.tar.gz u-boot-6bdf430660531aca5f88faeac8657d91595f5b38.tar.bz2 |
Add support for Silicon Turnkey eXpress XTc (mpc87x/88x) board.
Patch by Dan Malek and Pantelis Antoniou, 15 Aug 2005
Diffstat (limited to 'doc')
-rw-r--r-- | doc/README.stxxtc | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/doc/README.stxxtc b/doc/README.stxxtc new file mode 100644 index 0000000..7d9d4d3 --- /dev/null +++ b/doc/README.stxxtc @@ -0,0 +1,59 @@ + + +First, some build notes on the Silicon Turnkey eXpress XTc. + +This board has both 87x/88x procesor options at various +frequencies. The configuration file has some macros for setting +the clock speed, not all have been tested. They all have +a 10MHz input clock. Please do not check in a configuration +file that selects a high speed not available on all processors. +We chose the 66MHz core and bus speed, which should be OK on +all boards. If you have a processor, lucky you! :-) +Just build a new configuration with that speed, check +the macro configuration to ensure it's correct. If the +macro is updated, please check that in, but keep default +processor speed. + +The board is likely to have more than 1Mbyte of NOR boot flash. +It was also configured with a high boot vector (Dan's fault) +so the standard 8xx mapping doesn't work well. We had to move +the addresses around a little bit so one copy would work. The +flash got fragmented, and we are working on a better solution. +There is an "xtc.cfg" floating around for the BDI2000, use +that for programming a new version of U-Boot. You can probably +find it on the Silicon Turnkey eXpress (www.silicontkx.com), +Embedded Alley Solutions (embeddedalley.com), or Denx (denx.de) +servers. + +The board will also have various SDRAM sizes, but the code +should automatically determine the amount of memory. + +There are a couple of different board versions, visually +they use different BGA or surface mount memory parts. However, +they are logically the same board. + +Now, some operational notes. + +The board has the option of sporting two FEC Ethernet ports. +The second port isn't configured to be automatically available +because it would cause U-Boot to generate a board data structure +(the bd_t) with multiple MAC addresses and be incompatible with +standard 8xx kernel builds. You can use/test the second FEC +in U-Boot by assigning an 'eth1addr' and selecting the second +FEC as the port to use. + +Since this is just a development board and not a product, STx +does not assign unique MAC addresses. We just pilfer the +"default" ones used by Wolfgang on some other boards. Please +ensure you assign unique MAC addresses when using these boards. + +The serial port baud rate is 38400, because that's the way +I like it :-) + +Thanks to Pantelis for lots of the work on this board port. + +Have Fun! + + -- Dan + +15 August 2005 |