All of lore.kernel.org
 help / color / mirror / Atom feed
* Re: 824x sandpoint and 2.6.x
@ 2005-04-23 12:16 Sam Song
  2005-04-29  0:44 ` Mark A. Greer
  0 siblings, 1 reply; 4+ messages in thread
From: Sam Song @ 2005-04-23 12:16 UTC (permalink / raw)
  To: Mark A. Greer; +Cc: linuxppc-embedded

"Mark A. Greer" <mgreer@mvista.com> wrote:
> >had, is it possible to flush the content of 
__log_buf
> >after reset?
>
> Sam,
> 
> I thought I finally noticed yesterday that you're
> using 2.4. If that is
> the case, you want to dump "log_buf" not
> "__log_buf".

Uh, I copy the above note to this thread to
continue:-)

The turth is that I ported denx 2.4.24 successfully on
my board
 and try to port it to 2.6.x.  To my understanding,
UART init was
bad for some reason. It was auto configured as 16450
rather than 
16550A as 2.4.  Besides, ttyS0 iomem base address in
2.6 is different
to the one in 2.4 although they have the same serial
address setting.
I wander which kind of possiblity coud lead to this
result or even better
to point out some useful printk locations to me. 

If possible, could you pls show me a right 2.6 boot
process of
 sandpoint X3/2? I wanna to find out some nice hints
of it. This
is the first time to me so hard to debug a kernel
before normal 
console. 

Thanks a lot,

Sam  

_________________________________________________________
Do You Yahoo!?
150万曲MP3疯狂搜,带您闯入音乐殿堂
http://music.yisou.com/
美女明星应有尽有,搜遍美图、艳图和酷图
http://image.yisou.com
1G就是1000兆,雅虎电邮自助扩容!
http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: 824x sandpoint and 2.6.x
@ 2005-04-30  5:33 Sam Song
  0 siblings, 0 replies; 4+ messages in thread
From: Sam Song @ 2005-04-30  5:33 UTC (permalink / raw)
  To: Mark A. Greer; +Cc: linuxppc-embedded

"Mark A. Greer" <mgreer@mvista.com> wrote:
[snip]
> Here is the output of a 7457 sandpoint on a very old
> root filesystem.
> Output for any other processor will be the same.

Thanks. Some useful hints inside.

[snip]
> ttyS0 at MMIO 0x0 (irq = 4) is a NS16550A

Mine is "ttyS0 at MMIO 0xfdfce500 (irq = 5) is a 
16450". Have some ideas to try but I am on vacation:)

> ttyS1 at MMIO 0x0 (irq = 3) is a NS16550A

I masked ttyS1 manually.

Thanks again,

Have a nice Labor Day:)

Sam

_________________________________________________________
Do You Yahoo!?
150万曲MP3疯狂搜,带您闯入音乐殿堂
http://music.yisou.com/
美女明星应有尽有,搜遍美图、艳图和酷图
http://image.yisou.com
1G就是1000兆,雅虎电邮自助扩容!
http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2005-05-09 11:53 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2005-04-23 12:16 824x sandpoint and 2.6.x Sam Song
2005-04-29  0:44 ` Mark A. Greer
2005-05-09 11:53   ` Sam Song
  -- strict thread matches above, loose matches on Subject: below --
2005-04-30  5:33 Sam Song

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.