From: "Jason Park" <jason@amadeus.kist.re.kr>
To: "Wolfgang Denk" <wd@denx.de>
Cc: "LINUX MAILING LIST" <linuxppc-embedded@lists.linuxppc.org>
Subject: Re: Still having problems trying to get it to boot: PPCBOOT, MPC8260
Date: Wed, 5 Feb 2003 11:14:59 +0900 [thread overview]
Message-ID: <000801c2ccbc$74641830$5e207aa1@fish> (raw)
In-Reply-To: 20030204082910.650EFC608E@atlas.denx.de
> Please explain what you changed; the config.mk for the ep8260 board
> reads "TEXT_BASE = 0xFFF00000" which looks OK to me.
i did set TEXT_BASE = 0xFFF00000
i changed the makefile to pick the appropriate Cross Compiler.
ifndef CROSS_COMPILE
ifeq ($(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/
next prev parent reply other threads:[~2003-02-05 2:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-04 8:12 Still having problems trying to get it to boot: PPCBOOT, MPC8260 Jason Park
2003-02-04 8:29 ` Wolfgang Denk
2003-02-05 2:14 ` Jason Park [this message]
2003-02-05 9:14 ` Wolfgang Denk
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