Re: Still having problems trying to get it to boot: PPCBOOT, MPC8260

Please explain what you changed; the config.mk for the  ep8260  board
reads "TEXT_BASE = 0xFFF00000" which looks OK to me.

i did set TEXT_BASE = 0xFFF00000
i changed the makefile to pick the appropriate Cross Compiler.

ifndef CROSS_COMPILE
ifeq ($(HOSTARCH),ppc)
CROSS_COMPILE =
else
##  #ifeq ($(CPU),mpc8xx)
##  CROSS_COMPILE = ppc_8xx-
##  #endif
##  #ifeq ($(CPU),ppc4xx)
##  #CROSS_COMPILE = ppc_4xx-
##  #endif
##  #ifeq ($(CPU),mpc824x)
##  #CROSS_COMPILE = ppc_82xx-
##  #endif
ifeq ($(CPU),mpc8260)
CROSS_COMPILE = ppc_82xx-
endif
##  #ifeq ($(CPU),74xx_7xx)
##  #CROSS_COMPILE = ppc_74xx-)
##  #endif

##ifeq ($(ARCH),ppc)
##CROSS_COMPILE = ppc_8xx-
##endif
##ifeq ($(ARCH),arm)
##CROSS_COMPILE = arm_920TDI-
endif
endif
##endif

Type "reset" and "info" and check where the PC is  pointing  to.  You
may  have  a  problem with your BDI's config file so the CPU does not
get stopped immediately after a reset, but  only  after  some  delay.
This  might explain that "reset" and "go" does not work. Also, please
note that  thge  reset  entry  point  is  at  offset  0x100,  so  "go
0xfff00000" is definitely wrong - try "go 0xfff00100" instead.

reset
info (PC: 0xfff00100)
go (it is actually running now.. but im not sure if it is running properly)
halt (PC: 0x03fdc420)

and.. this is what is at
md 0xfff00000
fff00000 : 10101010 10101010 40404040 40404040  ........@@@@@@@@
fff00010 : 02020202 02020202 45454545 45454545  ........EEEEEEEE
fff00020 : 00000000 00000000 00000000 00000000  ................
fff00030 : 00000000 00000000 00000000 00000000  ................
fff00040 : 00000000 00000000 00000000 00000000  ................
fff00050 : 00000000 00000000 00000000 00000000  ................
fff00060 : 00000000 00000000 00000000 00000000  ................
fff00070 : 00000000 00000000 00000000 00000000  ................
fff00080 : 00000000 00000000 00000000 00000000  ................
fff00090 : 00000000 00000000 00000000 00000000  ................
fff000a0 : 00000000 00000000 00000000 00000000  ................
fff000b0 : 00000000 00000000 00000000 00000000  ................
fff000c0 : 00000000 00000000 00000000 00000000  ................
fff000d0 : 00000000 00000000 00000000 00000000  ................
fff000e0 : 00000000 00000000 00000000 00000000  ................
fff000f0 : 00000000 00000000 00000000 00000000  ................

the output of the target board is just garbage characters now.

Tb.?.???
b?..???...?.a.B.?..?.V.?

Thanks,
Jason Park


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/