| wdenk | e58b0dc | 2003-07-27 00:21:01 +0000 | [diff] [blame] | 1 | LYNX KDI SUPPORT |
| 2 | |
| 3 | Last Update: July 20, 2003 |
| 4 | ======================================================================= |
| 5 | |
| 6 | This file describes support for LynuxWorks KDI within U-Boot. Support |
| 7 | is enabled by defining CONFIG_LYNXKDI. |
| 8 | |
| 9 | |
| 10 | LYNXOS AND BLUECAT SUPPORTED |
| 11 | ============================ |
| 12 | Both LynxOS and BlueCat linux KDIs are supported. The implementation |
| 13 | automatically detects which is being booted. When you use mkimage |
| 14 | you should specify "lynxos" for both (see target-specific notes). |
| 15 | |
| 16 | |
| 17 | SUPPORTED ARCHITECTURE/TARGETS |
| 18 | ============================== |
| 19 | The following targets have been tested: |
| 20 | |
| 21 | -PowerPC MPC8260ADS |
| 22 | |
| 23 | |
| 24 | FILES TO LOOK AT |
| 25 | ================ |
| 26 | include/lynxkdi.h -defines a simple struct passed to a kdi. |
| 27 | common/lynxkdi.c -implements the call to the kdi. |
| 28 | common/cmd_bootm.c -top-level command implementation ("bootm"). |
| 29 | |
| 30 | |
| 31 | ==================================================================== |
| 32 | TARGET SPECIFIC NOTES |
| 33 | ==================================================================== |
| 34 | |
| 35 | MPC8260ADS |
| 36 | =========== |
| 37 | The default LynxOS and BlueCat implementations require some |
| 38 | modifications to the config file. |
| 39 | |
| 40 | Edit include/configs/MPC8260ADS.h to use the following: |
| 41 | |
| 42 | #define CFG_IMMR 0xFA200000 |
| 43 | #define CFG_BCSR 0xFA100000 |
| 44 | #define CFG_BR1_PRELIM 0xFA101801 |
| 45 | |
| 46 | When creating a LynxOS or BlueCat u-boot image using mkimage, |
| 47 | you must specify the following: |
| 48 | |
| 49 | Both: -A ppc -O lynxos -T kernel -C none |
| 50 | LynxOS: -a 0x00004000 -e 0x00004020 |
| 51 | BlueCat: -a 0x00500000 -e 0x00507000 |
| 52 | |
| 53 | To pass the MAC address to BlueCat you should define the |
| 54 | "fcc2_ether_addr" parameter in the "bootargs" environment |
| 55 | variable. E.g.: |
| 56 | |
| 57 | ==> setenv bootargs fcc2_ether_addr=00:11:22:33:44:55:66 |