| wdenk | e221174 | 2002-11-02 23:30:20 +0000 | [diff] [blame] | 1 | This file contains status information for the port of U-Boot to the |
| 2 | Galileo Evaluation Board. |
| 3 | |
| 4 | Author: Josh Huber <huber@mclx.com> |
| 5 | Mission Critical Linux, Inc. |
| 6 | |
| 7 | The support for the Galileo Evaluation board is fairly minimal now. |
| 8 | It's sufficient to boot Linux, but doesn't provide too much more than |
| 9 | what's required to do this. |
| 10 | |
| 11 | Both DUART channels are supported (to use the second one, you have to |
| 12 | modify the board -- see the schematics for where to solder on the |
| 13 | devices module). The ethernet ports are supported, and the MPSC is |
| 14 | supported as a console driver. (keep in mind that the kernel has no |
| 15 | support for this yet) |
| 16 | |
| 17 | There are still occaisonal lockups with the MPSC console driver due to |
| 18 | (we think!) overrun problems. If you're looking for something stable |
| 19 | to use for Linux development, consider sticking with the DUART console |
| 20 | for now. |
| 21 | |
| 22 | Automatic memory sizing mostly works. We've had problems with some |
| 23 | combinations of memory. Please send us email if you're having trouble |
| 24 | with respect to the memory detection. |
| 25 | |
| 26 | Right now, only the 512k boot flash is supported. Support for the |
| 27 | 16MB flash on the devices module is forthcoming. Right now the flash |
| 28 | is stored at the 256k boundry in flash, wasting a whole sector (64k!) |
| 29 | for environment data. This isn't really a big deal since we're not |
| 30 | using the 512k for anything else. (Just U-Boot and the environment) |
| 31 | |
| 32 | Finally, here is a sample output session: |
| 33 | |
| 34 | U-Boot 1.0.0-pre1 (Jun 6 2001 - 12:45:11) |
| 35 | |
| 36 | Initializing... |
| 37 | CPU: MPC7400 (altivec enabled) v2.9 |
| 38 | Board: EVB64260 |
| 39 | DRAM: 256 MB |
| 40 | FLASH: 512 kB |
| 41 | In: serial |
| 42 | Out: serial |
| 43 | Err: serial |
| 44 | |
| 45 | => |
| 46 | |
| 47 | The default configuration should be correct for the evaluation board, |
| 48 | as it's shipped from Galileo. Keep in mind that the default baudrate |
| 49 | is set to 38400, 8N1. |
| 50 | |
| 51 | Good luck, and make sure to send any bugreports to us (or the |
| 52 | u-boot-users list). |
| 53 | |
| 54 | Josh |