| 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 | Motorola mpc74xx series of CPUs. |
| 3 | |
| 4 | Author: Josh Huber <huber@mclx.com> |
| 5 | Mission Critical Linux, Inc. |
| 6 | |
| 7 | Currently the support for these CPUs is pretty minimal, but enough to |
| 8 | get things going. (much like the support for the Galileo Eval Board) |
| 9 | |
| 10 | There is a framework in place to enable the L2 cache, and to program |
| 11 | the BATs. Currently, there are still problems with the code which |
| 12 | sets up the L2 cache, so it's not enabled. (IMHO, it shouldn't be |
| 13 | anyway). Additionally, there is support for enabling the MMU, which |
| 14 | we also don't do. The BATs are programmed just for the benefit of |
| 15 | jumping into Linux in a sane configuration. |
| 16 | |
| 17 | Most of the code was based on other cpus supported by U-Boot. |
| 18 | |
| 19 | If you find any errors in the CPU setup code, please send us a note. |
| 20 | |
| 21 | Thanks, |
| 22 | Josh |