Some version different
Wolfgang Denk
wd at denx.de
Wed Aug 10 15:25:23 EST 2005
In message <A9DE2BAF233E444FA9C5E77A5825A01E86505B at ydmail.sbell.com.cn> you wrote:
> >
> I want to ask some questions about the different version:
> 1. The linuxppc_2_4_devel and the linux-2.4.25.tar.bz2 in ELDK
> 3.1.1 package
THe traball is a snapshot from the linuxppc_2_4_devel CVS tree (for
ELDK 3.1.1 the date of the snapshot is 2005-03-06 or CVS tag
LABEL_2005_03_06_0100).
> 2. The ppcboot 0.9.2 compiled with mvstia devrock and the
> U-Boot 1.1.2 compiled with ELDK
PPCBoot 0.9.2 and U-Boot 1.1.2 are about 4 years apart. This is like
comparing Linux kernel versions 2.0 with 2.6 ....
> Does the kernel freeze at "transferring control to linux" could be
> these different versions?
Both versions were perfectly capable of booting a working Linux
kernel. I don't know the MV toolchain, but I guess it's working fine,
too. So my guess is that it's your port of the Linux kernel which is
broken.
> 1 why I configed the kernel with CONFIG_HD860 in "make menuconfig" but
> the code in CONFIG_HD860
> isn't compiled at all ! What's the perhaps reasons? I checked the
Your port of the Linux kernel is broken. Probably you made errors
when changing the configure scripts and/or Makefiles.
> 2 How to get board info "struct bd_info" in init/main.c ? I want to
> use printf of bd_t->bi_mon_fnc->printf() to
You cannot do that. It does not work.
> print some string on console. Does it possible? But the code is
> only in head_8xx.S, How to get the bd* data in
The _res pointer can be used for that; see the existing driver sources.
> main.c ? Some board use get_board_info(). But how can I use it?
This depends on how your hardware and your port of Linux support such
a feature. I cannot answer such a question.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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