From: Christian Zigotzky <chzigotzky@xenosoft.de>
To: Michael Ellerman <mpe@ellerman.id.au>,
linuxppc-dev@lists.ozlabs.org,
Bjorn Helgaas <bhelgaas@google.com>
Subject: [PATCH] SB600 for the Nemo board has non-zero devices on non-root bus
Date: Wed, 29 Nov 2017 20:28:25 +0100 [thread overview]
Message-ID: <4cfe3cc0-7fe3-9774-7d20-1b7fcb7aa910@xenosoft.de> (raw)
In-Reply-To: <87tvxl15qx.fsf@concordia.ellerman.id.au>
On 23 November 2017 2:31PM, Michael Ellerman wrote:
> Hi Christian,
>
> Thanks for your patch.
>
> Christian Zigotzky <chzigotzky@xenosoft.de> writes:
>> Hi All,
>>
>> Just a small patch for the P.A. Semi Nemo board:
>>
>> -----
>>
>> diff -rupN a/drivers/pci/probe.c b/drivers/pci/probe.c
>> --- a/drivers/pci/probe.c 2017-11-16 08:18:40.504012010 +0100
>> +++ b/drivers/pci/probe.c 2017-11-16 08:17:22.044368405 +0100
>> @@ -2219,6 +2219,8 @@ static int only_one_child(struct pci_bus
> As this is a patch to the PCI code I can't merge it via the powerpc
> tree. You would need to send it to linux-pci@vger.kernel.org.
>
>> if (!parent || !pci_is_pcie(parent))
>> return 0;
>> + #ifndef CONFIG_PPC_PASEMI_NEMO
>> + // SB600 for the Nemo board has non-zero devices on non-root bus.
>> if (pci_pcie_type(parent) == PCI_EXP_TYPE_ROOT_PORT)
>> return 1;
>>
>> @@ -2231,6 +2233,7 @@ static int only_one_child(struct pci_bus
>> if (parent->has_secondary_link &&
>> !pci_has_flag(PCI_SCAN_ALL_PCIE_DEVS))
>> return 1;
>> + #endif
> But the PCI maintainer is not going to accept a patch like this, which
> adds a platform specific #ifdef in core code like this.
>
> If you look at the rest of that file I don't think you'll find a single
> #ifdef other than for generic configuration symbols.
>
> Are you sure the PCI_SCAN_ALL_PCIE_DEVS logic doesn't work for you? It
> sounds like it was added for exactly this problem.
>
> cheers
>
Hi Michael,
Thanks for your reply. Sorry for my late answer. I removed the patch
above from the RC1 and compiled the RC1 again. Unfortunately without the
patch, the kernel doesn't recognize any drives and partitions. Do you
have another idea?
Thanks,
Christian
next prev parent reply other threads:[~2017-11-29 19:28 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-16 7:47 [PATCH] SB600 for the Nemo board has non-zero devices on non-root bus Christian Zigotzky
2017-11-23 13:31 ` Michael Ellerman
2017-11-29 19:28 ` Christian Zigotzky [this message]
2017-11-29 19:46 ` Bjorn Helgaas
2017-11-29 20:45 ` Christian Zigotzky
2017-11-29 22:34 ` Bjorn Helgaas
2017-11-29 23:39 ` Christian Zigotzky
2017-11-30 22:42 ` Bjorn Helgaas
2017-12-01 22:08 ` Christian Zigotzky
2017-12-01 23:27 ` Bjorn Helgaas
2017-12-02 12:54 ` Christian Zigotzky
2017-12-02 23:00 ` Olof Johansson
2017-12-02 23:02 ` Olof Johansson
2017-12-03 9:43 ` Christian Zigotzky
2017-12-06 8:37 ` Christian Zigotzky
2017-12-06 11:03 ` Christian Zigotzky
2017-12-06 12:57 ` Michael Ellerman
2017-12-06 21:06 ` Bjorn Helgaas
2017-12-08 11:59 ` Michael Ellerman
2017-12-09 18:03 ` Christian Zigotzky
2017-12-15 8:04 ` Christian Zigotzky
2017-12-15 20:25 ` Bjorn Helgaas
2017-12-16 7:18 ` Christian Zigotzky
2017-12-22 9:57 ` Christian Zigotzky
2017-12-22 10:22 ` Christian Zigotzky
2017-12-22 11:19 ` Michael Ellerman
2017-12-22 12:11 ` Christian Zigotzky
2018-06-04 14:10 ` Michael Ellerman
2018-06-04 14:10 ` Michael Ellerman
2017-12-06 12:44 ` [PATCH] " Michael Ellerman
2017-12-06 15:53 ` Olof Johansson
2017-12-08 11:57 ` Michael Ellerman
2018-03-16 12:10 ` [PATCH 0/1] PCI set flag PCI_SCAN_ALL_PCIE_DEVS for P.A. Semi boards Christian Zigotzky
2018-03-16 12:55 ` [PATCH 1/1] " Christian Zigotzky
2018-03-19 19:13 ` Bjorn Helgaas
2018-03-19 20:46 ` Christian Zigotzky
2018-03-19 22:32 ` Michael Ellerman
2018-03-21 6:44 ` Christian Zigotzky
2018-03-25 20:55 ` Darren Stevens
2018-04-16 4:29 ` [PATCH 1/1] " Christian Zigotzky
2017-12-04 11:40 ` SB600 for the Nemo board has non-zero devices on non-root bus Darren Stevens
2017-12-04 13:31 ` Christian Zigotzky
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