]> git.ipfire.org Git - people/ms/u-boot.git/blob - doc/README.lynxkdi
* Patch by Scott McNutt, 21 Jul 2003:
[people/ms/u-boot.git] / doc / README.lynxkdi
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