RE: EST sbc8260 boot debug

Wolfgang is sleeping right now so I'll try to recreate his standard response...

1) ppcboot is a dead project.  It has been replaced by u-boot.  Please switch to u-boot:
      http://sourceforge.net/projects/u-boot/

2) There is a u-boot email list that you can send questions to.  Please use that for u-boot questions.
    http://lists.sourceforge.net/lists/listinfo/u-boot-users

2) Running out of RAM is strongly discouraged.  u-boot (ppcboot) is intended to run out of flash as a boot program.  Running out of RAM is an unsupported option.  While you can run it out of RAM, you will have to understand your hardware and implications of hardware initialization that is performed by default by u-boot (ppcboot).  The fact that you are asking these questions indicates you have not considered the hardware problems.

Please use your bdi2000 to program a standard unmodified sbc8260 build into flash and THEN ask questions on the u-boot list if it doesn't work.

gvb

P.S. IIRC, the standard sbc8260 configuration jumper is set to "boot low" (0000_0100).  The standard sbc8260 u-boot build is set to "boot high" (FFF0_0100).  You will want to change that jumper.

-----Original Message-----
From: li [mailto:slowforce@21cn.com]
Sent: Friday, November 07, 2003 11:49 AM
To: linuxppc-embedded@lists.linuxppc.org
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: EST sbc8260 boot debug



Hello all,
I have an EST sbc8260 board to boot. After connecting the BDI2000
with the board, and power on, everything seems ok. In the config file
for sbc8260, BR0 is set to 0xFE000801. Then, i modified ppcboot-1.1.6
for mpc8260, change the textbase from 0x40000000(flash address) to
0x200000(sdram address) and also the FLASH base addr is set
to 0x200000.
At last, using "load 0x200000 ppcboot BIN" command, i download the
ppcboot image to sdram, and set pc to 0x200100 using "ti 0x200100"
command. when i using "ti" command, i can see that the pc is
increasing,
but when i get into the "board_init_r" function, there should be
something appears in the console, in fact nothing appeared.
Is there any problem with my procdure?

PS: there is much switchs and JPs on the board, can anyone give an
proper setting for them under ppcboot environment?

Thanks in advance
slowforce

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