| 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 |