| wdenk | e0c812a | 2005-04-03 15:51:42 +0000 | [diff] [blame] | 1 | U-Boot for Hidden Dragon board |
| 2 | ------------------------------ |
| 3 | |
| 4 | Hidden Dragon is a MPC824x-based board by Motorola. For the most |
| 5 | part it is similar to Sandpoint8245 board. So unless otherwise |
| 6 | mentioned, the codes in this directory are adapted from ../sandpoint |
| 7 | directory. |
| 8 | |
| 9 | Apparently there are very few of this board out there. Even Motorola |
| 10 | website does not have any info on it. |
| 11 | |
| 12 | RAM: |
| 13 | start = 0x0000 0000 |
| 14 | size = 0x0200 0000 (32 MB) |
| 15 | |
| 16 | Flash: |
| 17 | BANK ONE: |
| 18 | start = 0xFFE0 0000 |
| 19 | size = 0x0020 0000 (2 MB) |
| 20 | flash chip = 29LV160TE (1x16 Mbits or 2x8 Mbits) |
| 21 | flash sectors = 16K, 2x8K, 32K, 31x64K |
| 22 | |
| 23 | BANK TWO: |
| 24 | NONE |
| 25 | |
| 26 | The processor interrupt vectors reside on the first 256 bytes |
| 27 | starting from address 0xFFF00000. The "reset vector" (first |
| 28 | instruction executed after reset) is located on 0xFFF0 0100. |
| 29 | |
| 30 | U-Boot is configured to reside in flash starting at the address of |
| 31 | 0xFFF00000. The environment space is located in flash separately from |
| 32 | U-Boot, at the second sector of the first flash bank, starting from |
| 33 | 0xFFE04000 until 0xFFE06000 (8KB). |
| 34 | |
| 35 | Network: |
| 36 | - RTL8139 chip on the base board (SUPPORTED) |
| 37 | - RTL8129 chip on the processor board (NOT SUPPORTED) |
| 38 | |
| 39 | Serial: |
| 40 | - Two NS16550 compatible UART on the processor board (SUPPORTED) |
| 41 | - One NS16550 compatible UART on the base board (UNTESTED) |
| 42 | |
| 43 | Misc: |
| 44 | VIA686A PCI SuperIO peripheral controller |
| 45 | - 2 USB ports (UNTESTED) |
| 46 | - 2 PS2 ports (UNTESTED) |
| 47 | - Parallel port (UNTESTED) |
| 48 | - IDE & floppy interface (UNTESTED) |
| 49 | |
| 50 | S3 Savage4 video card (UNTESTED) |
| 51 | |
| 52 | TODO: |
| 53 | ----- |
| 54 | - Support for the VIA686A based peripherals |
| 55 | - The RTL8139 driver frequently gives rx error. |
| 56 | - Support for RTL8129 network controller. (Why is the support removed from |
| 57 | rtl8139.c driver?) |
| 58 | |
| 59 | (C) Copyright 2004 |
| 60 | Yusdi Santoso, Adaptec Inc., yusdi_santoso@adaptec.com |