[U-Boot-Users] U-boot on MBX860-002

Herbert Thielen u-boot at thielen-home.de
Tue Apr 27 20:59:00 CEST 2004


I've got an older Motorola MBX board "MBX860-002" (assembly number
01-W3269F02C) which I'd like to use for U-Boot/Linux.

Building U-Boot with a powerpc-860-linux-gnu-gcc (3.3.2) was
successfully (except the examples directory).
Unfortunately, the MBX board gives only some crude characters via serial
console (9600 8n1) after booting u-boot from flash. At least there is
some reaction on characters sent via RS232.

Currently I've no BDM debugger available, so it's not to easy to debug
this ;-)

Was anybody out there successful in running U-Boot on a MBX board? Any

So far, I tried to adjust the clock speed from 50MHz to 40MHz in
include/configs/MBX.h (see below), but without success (nothing seems to
have changed).

Any ideas are welcome.


--- MBX.h       2003/06/27 21:32:45     1.1
+++ MBX.h       2004/04/27 14:45:56
@@ -54,7 +54,7 @@

 #define        CONFIG_CLOCKS_IN_MHZ    1       /* clocks passsed to Linux in MHz */
-#define CONFIG_8xx_GCLK_FREQ    (50000000UL)
+#define CONFIG_8xx_GCLK_FREQ    (40000000UL)
 #if 1
 #define CONFIG_BOOTDELAY       -1      /* autoboot disabled            */

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