[PASEMI] Nemo board doesn't recognize any ATA disks with the pci-v5.16 updates

[Christian Zigotzky]

On 12 November 2021 at 02:41 pm, Marc Zyngier wrote:
> On Fri, 12 Nov 2021 09:40:30 +0000,
> Christian Zigotzky <chzigotzky at xenosoft.de> wrote:
>> On 11 November 2021 at 06:39 pm, Marc Zyngier wrote:
>>> On Wed, 10 Nov 2021 18:07:24 +0000,
>>> Christian Zigotzky <chzigotzky at xenosoft.de> wrote:
>>>> On 09 November 2021 at 03:45 pm, Christian Zigotzky wrote:
>>>>> Hello,
>>>>>
>>>>> The Nemo board [1] doesn't recognize any ATA disks with the
>>>> pci-v5.16 updates [2].
>>>>> Error messages:
>>>>>
>>>>> ata4.00: gc timeout cmd 0xec
>>>>> ata4.00: failed to IDENTIFY (I/O error, error_mask=0x4)
>>>>> ata1.00: gc timeout cmd 0xec
>>>>> ata1.00: failed to IDENTIFY (I/O error, error_mask=0x4)
>>>>> ata3.00: gc timeout cmd 0xec
>>>>> ata3.00: failed to IDENTIFY (I/O error, error_mask=0x4)
>>>>>
>>>>> I was able to revert the new pci-v5.16 updates [2]. After a new
>>>> compiling, the kernel recognize all ATA disks correctly.
>>>>> Could you please check the pci-v5.16 updates [2]?
>>>>>
>>>>> Please find attached the kernel config.
>>>>>
>>>>> Thanks,
>>>>> Christian
>>>>>
>>>>> [1] https://en.wikipedia.org/wiki/AmigaOne_X1000
>>>>> [2]
>>>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0c5c62ddf88c34bc83b66e4ac9beb2bb0e1887d4
>>>>
>>>> Hi All,
>>>>
>>>> Many thanks for your nice responses.
>>>>
>>>> I bisected today [1]. 0412841812265734c306ba5ef8088bcb64d5d3bd
>>>> (of/irq: Allow matching of an interrupt-map local to an interrupt
>>>> controller) [2] is the first bad commit.
>>> Can you please give the following hack a go and post the result
>>> (including the full dmesg)?
>>>
>>> Thanks,
>>>
>>> 	M.
>>> diff --git a/drivers/of/irq.c b/drivers/of/irq.c
>>> index 32be5a03951f..8cf0cc9b7caf 100644
>>> --- a/drivers/of/irq.c
>>> +++ b/drivers/of/irq.c
>>> @@ -156,14 +156,15 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
>>>      	/* Now start the actual "proper" walk of the interrupt tree */
>>>    	while (ipar != NULL) {
>>> +		bool intc = of_property_read_bool(ipar, "interrupt-controller");
>>> +
>>>    		/*
>>>    		 * Now check if cursor is an interrupt-controller and
>>>    		 * if it is then we are done, unless there is an
>>>    		 * interrupt-map which takes precedence.
>>>    		 */
>>>    		imap = of_get_property(ipar, "interrupt-map", &imaplen);
>>> -		if (imap == NULL &&
>>> -		    of_property_read_bool(ipar, "interrupt-controller")) {
>>> +		if (imap == NULL && intc) {
>>>    			pr_debug(" -> got it !\n");
>>>    			return 0;
>>>    		}
>>> @@ -244,8 +245,14 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
>>>      			pr_debug(" -> imaplen=%d\n", imaplen);
>>>    		}
>>> -		if (!match)
>>> +		if (!match) {
>>> +			if (intc) {
>>> +				pr_info("%pOF interrupt-map failed, using interrupt-controller\n", ipar);
>>> +				return 0;
>>> +			}
>>> +
>>>    			goto fail;
>>> +		}
>>>      		/*
>>>    		 * Successfully parsed an interrrupt-map translation; copy new
>>>
>> The detecting of the ATA disks works with this patch! Well done!
>> Thanks a lot!
> Thanks for testing it. I'll turn that into a proper patch.
>
> 	M.
>
Could you please explain your patch? I am not a developer. I work for 
the A-EON Linux FLS.

- Christian