From: Michael Ellerman <mpe@ellerman.id.au>
To: Bjorn Helgaas <helgaas@kernel.org>,
Christian Zigotzky <chzigotzky@xenosoft.de>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, Olof Johansson <olof@lixom.net>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH 1/1] PCI set flag PCI_SCAN_ALL_PCIE_DEVS for P.A. Semi boards
Date: Tue, 20 Mar 2018 09:32:14 +1100 [thread overview]
Message-ID: <87tvtbg0i9.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20180319191310.GG77194@bhelgaas-glaptop.roam.corp.google.com>
Bjorn Helgaas <helgaas@kernel.org> writes:
> On Fri, Mar 16, 2018 at 01:55:36PM +0100, Christian Zigotzky wrote:
>> Bjorn Helgaas created a patch for making PCI_SCAN_ALL_PCIE_DEVS work for
>> Root Ports as well as Downstream. Previously PCI_SCAN_ALL_PCIE_DEVS (set=
by
>> quirks or the "pci=3Dpcie_scan_all"
>> kernel parameter) only affected Switch Downstream Ports, not Root Ports.=
The
>> problem is, that we have to add always the boot argument "pci=3Dpcie_sca=
n_all"
>> for using Bjorn's improvements. Without the boot argument
>> "pci=3Dpcie_scan_all", the kernel doesn't boot on P.A. Semi boards with =
SB600
>> chipset (SB600 chipset is connected via PCIe x4 to the P.A. Semi=E2=80=
=99s
>> PA6T-1682M System-on-a-Chip) because the kernel can't find any drives
>> connected to the SB600 anymore. Olof Johansson has created a patch for
>> executing "pci=3Dpcie_scan_all" automatically on P.A. Semi boards. With =
his
>> patch, we don't need to add 'pci=3Dpcie_scan_all' to the kernel boot arg=
uments
>> anymore.
>
> The patch looks fine, but I need a signed-off-by line before I can apply
> it. See https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.g=
it/tree/Documentation/process/submitting-patches.rst
I'm happy to take it, I've been meaning to check if Olof sent a SOB in
his original mail but haven't got to it.
...
Yes, he did, see below.
So I'll merge that, I'll add a Tested-by for you Christian.
Christian please don't remove any of the tags when submitting other
peoples' patches in future.
cheers
>From a3b390277627b0342c8ccfc16e58679e0d8abdde Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Sat, 2 Dec 2017 14:56:36 -0800
Subject: [PATCH] powerpc/pasemi: set PCI_SCAN_ALL_PCI_DEVS
Needed on Amiga X1000 with SB600.
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
arch/powerpc/platforms/pasemi/pci.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/platforms/pasemi/pci.c b/arch/powerpc/platforms/p=
asemi/pci.c
index 5ff6108..ea54ed2 100644
--- a/arch/powerpc/platforms/pasemi/pci.c
+++ b/arch/powerpc/platforms/pasemi/pci.c
@@ -224,6 +224,8 @@ void __init pas_pci_init(void)
return;
}
+ pci_set_flag(PCI_SCAN_ALL_PCIE_DEVS):
+
for (np =3D NULL; (np =3D of_get_next_child(root, np)) !=3D NULL;)
if (np->name && !strcmp(np->name, "pxp") && !pas_add_bridge(np))
of_node_get(np);
next prev parent reply other threads:[~2018-03-19 22:32 UTC|newest]
Thread overview: 41+ 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
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
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 [this message]
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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