From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 29 Jul 2013 20:21:51 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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	<201307051934.17975.marex@denx.de> <51D70C4C.8000402@xenomai.org>
	<201307291422.32820.marex@denx.de>
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Subject: Re: [Xenomai] Xenomai on i.MX28 failure
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To: Marek Vasut <marex@denx.de>
Cc: Detlev Zundel <dzu@denx.de>, xenomai@xenomai.org

On 07/29/2013 02:22 PM, Marek Vasut wrote:

> Hi Gilles,
>
>> On 07/05/2013 07:34 PM, Marek Vasut wrote:
>>> Dear Gilles Chanteperdrix,
>>>
>>>> On 07/05/2013 03:38 PM, Marek Vasut wrote:
>>>>> Hello,
>>>>>
>>>>> I attempted to use xenomai on i.MX28-based board, but unfortunatelly
>>>>> failed so far. I use mainline Linux 3.8.2 on the board with no
>>>>> additional patches,
>>>>>
>>>>> therefore I did:
>>>>>      git clone git://git.xenomai.org/xenomai-2.6.git
>>>>>
>>>>> To retrieve xenomai-2.6/master . Then I went on to patch the Linux
>>>>> kernel source:
>>>>>
>>>>> ./scripts/prepare-kernel.sh --linux=../linux-stable --
>>>>> ipipe=ksrc/arch/arm/patches/ipipe-core-3.8-arm-1.patch --arch=arm
>>>>>
>>>>> Next I ran "make oldconfig" in the kernel tree. I enabled XENOMAI and
>>>>> left the newly added configuration options at their default values.
>>>>>
>>>>> After compiling the kernel, the kernel does not boot on the board
>>>>> anymore, while the kernel did boot before patching without problems.
>>>>>
>>>>> Can you please give me any pointers or ideas on how to progress ?
>>>>
>>>> Try:
>>>> http://xenomai.org/index.php/I-pipe-core:ArmPorting
>>>
>>> Thanks! The earlyprintk really helped, now I see this output [1] . I
>>> suspect it's something going on with the ipipe since I see icoll
>>> crashing. Can you please help me some more on where to look from now on
>>> or how to fix this?
>>
>> Please try the following patch:
>>
>> diff --git a/arch/arm/mach-mxs/icoll.c b/arch/arm/mach-mxs/icoll.c
>> index 905f267..9bc9c21 100644
>> --- a/arch/arm/mach-mxs/icoll.c
>> +++ b/arch/arm/mach-mxs/icoll.c
>> @@ -92,7 +92,7 @@ asmlinkage void __exception_irq_entry
>> icoll_handle_irq(struct pt_regs *regs) if (irqnr != 0x7f) {
>>   			__raw_writel(irqnr, icoll_base + HW_ICOLL_VECTOR);
>>   			irqnr = irq_find_mapping(icoll_domain, irqnr);
>> -			handle_IRQ(irqnr, regs);
>> +			ipipe_handle_multi_irq(irqnr, regs);
>>   			continue;
>>   		}
>>   		break;
>
> Did you possibly apply this fix to mainline xenomai please ?


It is already applied (but to the I-pipe patch, not to xenomai).

-- 
                                                                 Gilles.