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a2663ea4fc
u-boot-brain/board/dbau1x00
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wdenk a2663ea4fc * Patches by David Müller, 14 Nov 2003: 
- board/mpl/common/common_util.c
    * implement support for BZIP2 compressed images
    * various cleanups (printf -> puts, ...)
  - board/mpl/common/flash.c
    * report correct errors to upper layers
    * check the erase fail and VPP low bits in status reg
  - board/mpl/vcma9/cmd_vcma9.c
  - board/mpl/vcma9/flash.c
    * various cleanups (printf -> puts, ...)
  - common/cmd_usb.c
    * fix typo in comment
  - cpu/arm920t/usb_ohci.c
    * support for S3C2410 is missing in #if line
  - drivers/cs8900.c
    * reinit some registers in case of error (cable missing, ...)
  - fs/fat/fat.c
    * support for USB/MMC devices is missing in #if line
  - include/configs/MIP405.h
  - include/configs/PIP405.h
    * enable BZIP2 support
    * enlarge malloc space to 1MiB because of BZIP2 support
  - include/configs/VCMA9.h
    * enable BZIP2 support
    * enlarge malloc space to 1MiB because of BZIP2 support
    * enable USB support
  - lib_arm/armlinux.c
    * change calling convention of ARM Linux kernel as
      described on http://www.arm.linux.org.uk/developer/booting.php

* Patch by Thomas Lange, 14 Nov 2003:
  Split dbau1x00 into dbau1000, dbau1100 and dbau1500 configs to
  support all these AMD boards.

* Patch by Thomas Lange, 14 Nov 2003:
  Workaround for mips au1x00 physical memory accesses (the au1x00
  uses a 36 bit bus internally and cannot access physical memory
  directly. Use the uncached SDRAM address instead of the physical
  one.)
2003-12-07 18:32:37 +00:00
..
config.mk * Patch by Steven Scholz, 10 Oct 2003 2003-10-09 20:09:04 +00:00
dbau1x00.c * Patches by David Müller, 14 Nov 2003: 2003-12-07 18:32:37 +00:00
flash.c * Patch by Steven Scholz, 10 Oct 2003 2003-10-09 20:09:04 +00:00
Makefile * Patch by Steven Scholz, 10 Oct 2003 2003-10-09 20:09:04 +00:00
memsetup.S * Patches by Xianghua Xiao, 15 Oct 2003: 2003-10-15 23:53:47 +00:00
README * Patch by Steven Scholz, 10 Oct 2003 2003-10-09 20:09:04 +00:00
u-boot.lds * Patch by Steven Scholz, 10 Oct 2003 2003-10-09 20:09:04 +00:00

README 

By Thomas.Lange@corelatus.se 2003-10-06
----------------------------------------
DbAu1000 is a development board from AMD containing
an Alchemy AU1000 with mips32 core.

Limitations & comments
----------------------
I assume that you set board to BIG endian!
Little endian not tested, most probably broken.

I named the board dbau1x00, to allow
support for all three development boards
some day ( dbau1000, dbau1100 and dbau1500 ).

I only have a dbau1000, so all 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.

Ethernet only supported for mac0.

Pcmcia only supported for slot 0, only 3.3V.

Pcmcia IDE tested with Sandisk Compact Flash and
IBM microdrive.

###################################
########     NOTE!!!!!!   #########
###################################
If you partition a disk on another system (e.g. laptop),
all bytes will be swapped on 16bit level when using
PCMCIA!!!!

This is probably due to an error in Au1000 chip.

Solution:

a) Boot via network and partition disk directly from
dbau1x00. The endian will then be correct.

b) Partition disk on "laptop" and fill it with all files
you need. Then write a simple program that endian swaps
whole disk,

Example:
Original "laptop" byte order:
B0 B1 B2 B3 B4 B5 B6 B7 B8 B9...

Dbau1000 byte order will then be:
B1 B0 B3 B2 B5 B4 B7 B6 B9 B8...