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* Enable NAND flash support for NC650 board.

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* Patch by Thomas Lange 07 Oct 2004:
  Updated README for DBAu1x00 boards to match current status
This commit is contained in:
wdenk
2004-10-11 23:03:10 +00:00
parent d407bf52b5
commit 4cfaf55e5c
4 changed files with 80 additions and 21 deletions
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34
board/dbau1x00/README
View File

@@ -1,30 +1,40 @@
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.
###################################
@@ -32,7 +42,7 @@ IBM microdrive.
###################################
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.

10
board/nc650/nc650.c
View File

@@ -205,3 +205,13 @@ static long int dram_size (long int mamr_value, long int *base,
return (get_ram_size(base, maxsize));
}
#if (CONFIG_COMMANDS & CFG_CMD_NAND)
void nand_init(void)
{
unsigned long totlen = nand_probe(CFG_NAND_BASE);
printf ("%4lu MB\n", totlen >> 20);
}
#endif