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From: Richard Cochran <richardcochran@domain.hid>
To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: adeos-main@gna.org, Xenomai-core@domain.hid
Subject: Re: [Xenomai-core] [Adeos-main] ARM IXP: ipipe regression from 2.6.31 to .33 and .35
Date: Fri, 8 Apr 2011 08:05:03 +0200	[thread overview]
Message-ID: <20110408060503.GA6174@domain.hid> (raw)
In-Reply-To: <4D9E1DDA.1000503@domain.hid>

On Thu, Apr 07, 2011 at 10:26:02PM +0200, Gilles Chanteperdrix wrote:
> 
> On my side, I meant to say, the issue is in the implementation of the
> I-pipe one-shot timer, the function ipipe_mach_set_dec...

I couldn't find anything wrong there, but I did find this...

In ipipe_tsc_asm.S you have

 #ifndef CONFIG_CPU_ENDIAN_BE8
 /* Little endian */
	ldr	r0, [r0]
	cmp	r2, r0
	adc	r1, r3, #0
 #else /* Big endian */
	ldr	r1, [r0]
	cmp	r3, r1
	adc	r0, r2, #0
 #endif /* Big endian */

but my .config has

 CONFIG_ARCH_SUPPORTS_BIG_ENDIAN=y
 CONFIG_CPU_BIG_ENDIAN=y
 # CONFIG_CPU_ENDIAN_BE8 is not set
 CONFIG_CPU_ENDIAN_BE32=y

and the machine really is big endian, so that might make a difference.

Richard





  reply	other threads:[~2011-04-08  6:05 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-07 17:08 [Xenomai-core] ARM IXP: ipipe regression from 2.6.31 to .33 and .35 Richard Cochran
2011-04-07 18:32 ` [Xenomai-core] [Adeos-main] " Gilles Chanteperdrix
2011-04-07 19:02   ` Richard Cochran
2011-04-07 20:12     ` Richard Cochran
2011-04-07 20:26       ` Gilles Chanteperdrix
2011-04-08  6:05         ` Richard Cochran [this message]
2011-04-08  6:12           ` Richard Cochran
2011-04-08  6:18             ` Gilles Chanteperdrix
2011-04-08  6:16           ` Gilles Chanteperdrix
2011-04-08  6:29             ` Richard Cochran
2011-04-08  6:35               ` Gilles Chanteperdrix
2011-04-08  6:46                 ` Richard Cochran
2011-04-08  6:35   ` Gilles Chanteperdrix
2011-04-08  6:51     ` Richard Cochran
2011-04-08 15:37       ` Gilles Chanteperdrix

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