From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: linux-pci@vger.kernel.org
Cc: Richard Zhu <hongxing.zhu@nxp.com>,
Andrey Smirnov <andrew.smirnov@gmail.com>,
Shawn Guo <shawnguo@kernel.org>,
linux-kernel@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
yurovsky@gmail.com, Fabio Estevam <festevam@gmail.com>,
linux-arm-kernel@lists.infradead.org,
Lucas Stach <l.stach@pengutronix.de>
Subject: [PATCH 0/3] i.MX7 PCI support
Date: Thu, 19 Jan 2017 08:36:28 -0800 [thread overview]
Message-ID: <20170119163631.10668-1-andrew.smirnov@gmail.com> (raw)
Hello, everyone:
This is a small patchset intended to add PCI-subsystem bits necessary
for enabling PCI support on i.MX7. This patchset is not
self-sufficient and depends on three other patchsets:
- Changes to anatop regulator driver
- Chagnes to i.MX device tree code pertaining to anatop regulator
- Changes to i.MX device tree pertaining to PCIe controller
I submitted first two in [1] and [2], and, unless adwised otherwise,
am planning on submitting the last one once [1], [2] and this patchset
are accepted.
This patch was tested against i210 card on i.MX7 Sabre board
(connected via mini-PCIe to PCIe adapter) with general functionality
and bandwidth tests.
Note that this patchset have known "blemish" where Gen1 cards (at
least) report this message:
imx6q-pcie 33800000.pcie: Speed change timeout
imx6q-pcie 33800000.pcie: Failed to bring link up!
due to hardware not clearing PORT_LOGIC_SPEED_CHANGE bit after speed
change is requested, but since this does not seem to affect the
functioning of the link I am hoping this is not a deal breaker.
I posted a question on NXP community web-site [3] hoping to get some
additional info to help resolve the matter and if anyone has any
suggestions I'd love to hear them.
Thanks,
Andrey Smirnov
[1] https://www.spinics.net/lists/arm-kernel/msg553215.html
[2] https://www.spinics.net/lists/kernel/msg2418471.html
[3] https://community.nxp.com/message/867943
Andrey Smirnov (3):
PCI: imx6: Fix a typo in error message
PCI: imx6: Allow probe deferal by reset GPIO
PCI: imx6: Add code to support i.MX7D
.../devicetree/bindings/pci/fsl,imx6q-pcie.txt | 6 +-
drivers/pci/host/pci-imx6.c | 197 ++++++++++++++++++---
include/linux/mfd/syscon/imx7-gpc.h | 18 ++
include/linux/mfd/syscon/imx7-iomuxc-gpr.h | 4 +
include/linux/mfd/syscon/imx7-src.h | 18 ++
5 files changed, 214 insertions(+), 29 deletions(-)
create mode 100644 include/linux/mfd/syscon/imx7-gpc.h
create mode 100644 include/linux/mfd/syscon/imx7-src.h
--
2.9.3
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next reply other threads:[~2017-01-19 16:36 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-19 16:36 Andrey Smirnov [this message]
2017-01-19 16:36 ` [PATCH 1/3] PCI: imx6: Fix a typo in error message Andrey Smirnov
2017-01-19 16:41 ` Lucas Stach
2017-01-19 16:36 ` [PATCH 2/3] PCI: imx6: Allow probe deferal by reset GPIO Andrey Smirnov
2017-01-19 16:44 ` Lucas Stach
2017-01-20 23:21 ` kbuild test robot
2017-01-19 16:36 ` [PATCH 3/3] PCI: imx6: Add code to support i.MX7D Andrey Smirnov
2017-01-19 16:52 ` Lucas Stach
2017-01-20 14:24 ` Andrey Smirnov
2017-01-23 14:52 ` Rob Herring
2017-01-23 15:02 ` Andrey Smirnov
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