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

[Christian Zigotzky]

On 12 November 2021 at 10:40 am, Christian Zigotzky 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!
>
Sorry, I have read the patch more carefully and I have seen that it is 
an analyse patch. It's not a fix. I was too quick with my joy.

- Christian