U-Boot for Hidden Dragon board
------------------------------
Hidden Dragon is a MPC824x-based board by Motorola. For the most
part it is similar to Sandpoint8245 board. So unless otherwise
mentioned, the codes in this directory are adapted from ../sandpoint
directory.
Apparently there are very few of this board out there. Even Motorola
website does not have any info on it.
RAM:
start = 0x0000 0000
size = 0x0200 0000 (32 MB)
Flash:
BANK ONE:
start = 0xFFE0 0000
size = 0x0020 0000 (2 MB)
flash chip = 29LV160TE (1x16 Mbits or 2x8 Mbits)
flash sectors = 16K, 2x8K, 32K, 31x64K
BANK TWO:
NONE
The processor interrupt vectors reside on the first 256 bytes
starting from address 0xFFF00000. The "reset vector" (first
instruction executed after reset) is located on 0xFFF0 0100.
U-Boot is configured to reside in flash starting at the address of
0xFFF00000. The environment space is located in flash separately from
U-Boot, at the second sector of the first flash bank, starting from
0xFFE04000 until 0xFFE06000 (8KB).
Network:
- RTL8139 chip on the base board (SUPPORTED)
- RTL8129 chip on the processor board (NOT SUPPORTED)
Serial:
- Two NS16550 compatible UART on the processor board (SUPPORTED)
- One NS16550 compatible UART on the base board (UNTESTED)
Misc:
VIA686A PCI SuperIO peripheral controller
- 2 USB ports (UNTESTED)
- 2 PS2 ports (UNTESTED)
- Parallel port (UNTESTED)
- IDE & floppy interface (UNTESTED)
S3 Savage4 video card (UNTESTED)
TODO:
-----
- Support for the VIA686A based peripherals
- The RTL8139 driver frequently gives rx error.
- Support for RTL8129 network controller. (Why is the support removed from
rtl8139.c driver?)
(C) Copyright 2004
Yusdi Santoso, Adaptec Inc., yusdi_santoso@adaptec.com
