-By Thomas.Lange@corelatus.se 2003-10-06
+By Thomas.Lange@corelatus.se 2004-Oct-05
----------------------------------------
-DbAu1000 is a development board from AMD containing
-an Alchemy AU1000 with mips32 core.
+DbAu1xx0 are development boards from AMD containing
+an Alchemy AU1xx0 series cpu with mips32 core.
+Existing cpu:s are Au1000, Au1100, Au1500 and Au1550
Limitations & comments
----------------------
-I assume that you set board to BIG endian!
-Little endian not tested, most probably broken.
+Support was originally big endian only.
+I have not tested, but several u-boot users report working
+configurations in little endian mode.
I named the board dbau1x00, to allow
support for all three development boards
-some day ( dbau1000, dbau1100 and dbau1500 ).
+( dbau1000, dbau1100 and dbau1500 ).
+Now there is a new board called dbau1550 also, which
+should be supported RSN.
-I only have a dbau1000, so all testing is limited
-to this board!
+I only have a dbau1000, so my testing is limited
+to this board.
The board has two different flash banks, that can
be selected via dip switch. This makes it possible
to test new bootloaders without thrashing the YAMON
-boot loader deliviered with board.
+boot loader delivered with board.
+
+NOTE! When you switch between the two boot flashes, the
+base addresses will be swapped.
+Have this in mind when you compile u-boot. TEXT_BASE has
+to match the address where u-boot is located when you
+actually launch.
Ethernet only supported for mac0.
-Pcmcia only supported for slot 0, only 3.3V.
+PCMCIA only supported for slot 0, only 3.3V.
-Pcmcia IDE tested with Sandisk Compact Flash and
+PCMCIA IDE tested with Sandisk Compact Flash and
IBM microdrive.
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If you partition a disk on another system (e.g. laptop),
all bytes will be swapped on 16bit level when using
-PCMCIA!!!!
+PCMCIA and running cpu in big endian mode!!!!
This is probably due to an error in Au1000 chip.
projects / u-boot / blobdiff