Re: [Xenomai-help] How to Adapt ARM I-pipe patch to S3C6410

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

On 12/22/2011 03:37 AM, 陈晓 wrote:
> The kernel version is 2.6.37.6 I-pipe patch is 2.6.0-rc4,

2.6.0-rc4 is a xenomai version, not an I-pipe version. And xenomai
2.6.0-rc4 is obsolete and superseeded by xenomai 2.6.0.

I tried the
> howto ,but I couldn't find the variables and functions in irq.c ,but
> some of  the  functions and variables in time.c were here because of
> the patch.  I want to know whether all the function need to be add by
> myself ? because some of it exist when I patch the ipipe-patch.
> And the tip "Implementing a high-resolution counter.",I modified the
> CONFIG file and use the second way "Decrementer  See s3c24xx
> implementation."
> The complie work was finished with no error. Is there any patch t
> adpat  to the board?
> Thank you !

As indicated by the howto: "In the rest of this document we will call
these files time.c and irq.c, even though they may have another name for
your board. "

Anyway, irq demuxing is done differently with current versions of the
I-pipe, the howto is out of date. For each irq demux (the callbacks
registered with set_irq_chained_handler), the demux function should call
ipipe_handle_chained_irq instead of generic_handle_irq.

However, if the bug happens before start_kernel, the bug has probably
nothing to do with the modifications you made for the I-pipe. But are
you sure that the bug happens before start_kernel? Have you noted that
printk does not work as early as in start_kernel, you have to enable
early printk or use the printascii trick mentioned in the "tips and
tricks" section of the howto.

Please no private mails.

-- 
					    Gilles.