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Date: Sat, 13 Apr 2019 11:04:26 -0500
From: Bjorn Helgaas <helgaas@...nel.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc: Kishon Vijay Abraham I <kishon@...com>,
Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
Rob Herring <robh+dt@...nel.org>,
Arnd Bergmann <arnd@...db.de>,
Murali Karicheri <m-karicheri2@...com>,
Jingoo Han <jingoohan1@...il.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-arm-kernel@...s.com,
Minghuan Lian <minghuan.Lian@....com>,
Mingkai Hu <mingkai.hu@....com>, Roy Zang <roy.zang@....com>,
Jesper Nilsson <jesper.nilsson@...s.com>
Subject: Re: [PATCH v3 00/26] Add support for PCIe RC and EP mode in TI's
AM654 SoC
On Fri, Apr 12, 2019 at 04:48:36PM +0100, Lorenzo Pieralisi wrote:
> On Mon, Mar 25, 2019 at 03:09:21PM +0530, Kishon Vijay Abraham I wrote:
> > Add PCIe RC support for TI's AM654 SoC. The PCIe controller in AM654
> > uses Synopsys core revision 4.90a and uses the same TI wrapper as used
> > in keystone2 with certain modification. Hence AM654 will use the same
> > pci wrapper driver pci-keystone.c
> >
> > This series was initially part of [1]. This series only includes patches
> > that has to be merged via Lorenzo's tree. The PHY patches and dt patches
> > will be sent separately.
> >
> > This series is created over keystone MSI cleanup series [2].
> >
> > This series:
> > *) Cleanup pci-keystone driver so that both RC mode and EP mode of
> > AM654 can be supported
> > *) Modify epc-core to support allocation of aligned buffers required for
> > AM654
> > *) Fix ATU unroll identification
> > *) Add support for both host mode and device mode in AM654
> >
> > Changes from v2:
> > *) Missed updating "Reviewed-by: Rob Herring <robh@...nel.org>" tags
> > in the version that was sent to list.
> > *) Add const qualifier to struct dw_pcie_ep_ops in pci-layerscape-ep.c
> >
> > Changes from v1:
> > *) Support for legacy interrupt in AM654 is removed (see background here
> > [3])
> > *) Allow of_pci_get_max_link_speed to be used by Endpoint controller
> > driver
> > *) Add support to set max-link-speed from DT in pci-keystone driver
> > *) Update "Reviewed-by: Rob Herring <robh@...nel.org>" tags.
> >
> > [1] -> https://lore.kernel.org/patchwork/cover/989487/
> > [2] -> https://lkml.org/lkml/2019/3/21/193
> > [3] -> https://lkml.org/lkml/2019/3/19/235
> >
> > Kishon Vijay Abraham I (26):
> > PCI: keystone: Add start_link/stop_link dw_pcie_ops
> > PCI: keystone: Cleanup error_irq configuration
> > dt-bindings: PCI: keystone: Add "reg-names" binding information
> > PCI: keystone: Perform host initialization in a single function
> > PCI: keystone: Use platform_get_resource_byname to get memory
> > resources
> > PCI: keystone: Move initializations to appropriate places
> > dt-bindings: PCI: Add dt-binding to configure PCIe mode
> > PCI: keystone: Explicitly set the PCIe mode
> > dt-bindings: PCI: Document "atu" reg-names
> > PCI: dwc: Enable iATU unroll for endpoint too
> > PCI: dwc: Fix ATU identification for designware version >= 4.80
> > PCI: keystone: Prevent ARM32 specific code to be compiled for ARM64
> > dt-bindings: PCI: Add PCI RC dt binding documentation for AM654
> > PCI: keystone: Add support for PCIe RC in AM654x Platforms
> > PCI: keystone: Invoke phy_reset API before enabling PHY
> > PCI: OF: Allow of_pci_get_max_link_speed() to be used by PCI Endpoint
> > drivers
> > PCI: keystone: Add support to set the max link speed from DT
> > PCI: endpoint: Add support to allocate aligned buffers to be mapped in
> > BARs
> > PCI: dwc: Add const qualifier to struct dw_pcie_ep_ops
> > PCI: dwc: Fix dw_pcie_ep_find_capability to return correct capability
> > offset
> > PCI: dwc: Add callbacks for accessing dbi2 address space
> > PCI: keystone: Add support for PCIe EP in AM654x Platforms
> > PCI: designware-ep: Configure RESBAR to advertise the smallest size
> > PCI: designware-ep: Use aligned ATU window for raising MSI interrupts
> > misc: pci_endpoint_test: Add support to test PCI EP in AM654x
> > misc: pci_endpoint_test: Fix test_reg_bar to be updated in
> > pci_endpoint_test
> >
> > .../bindings/pci/designware-pcie.txt | 7 +-
> > .../devicetree/bindings/pci/pci-keystone.txt | 14 +-
> > drivers/misc/pci_endpoint_test.c | 18 +
> > drivers/pci/Makefile | 2 +-
> > drivers/pci/controller/dwc/Kconfig | 25 +-
> > drivers/pci/controller/dwc/pci-dra7xx.c | 2 +-
> > drivers/pci/controller/dwc/pci-keystone.c | 577 +++++++++++++++---
> > .../pci/controller/dwc/pci-layerscape-ep.c | 2 +-
> > drivers/pci/controller/dwc/pcie-artpec6.c | 2 +-
> > .../pci/controller/dwc/pcie-designware-ep.c | 55 +-
> > .../pci/controller/dwc/pcie-designware-host.c | 19 -
> > .../pci/controller/dwc/pcie-designware-plat.c | 2 +-
> > drivers/pci/controller/dwc/pcie-designware.c | 52 ++
> > drivers/pci/controller/dwc/pcie-designware.h | 15 +-
> > drivers/pci/endpoint/functions/pci-epf-test.c | 5 +-
> > drivers/pci/endpoint/pci-epf-core.c | 10 +-
> > drivers/pci/of.c | 44 +-
> > include/linux/pci-epc.h | 2 +
> > include/linux/pci-epf.h | 3 +-
> > 19 files changed, 683 insertions(+), 173 deletions(-)
>
> Hi Kishon,
>
> I have applied the series, after rewriting the commit logs we
> discussed, branch: pci/keystone, please have a look and let me know
> if that's good to go.
It all looks good to me; I responded to a few things I noticed while
writing the notes for merging the branch. I don't think there were
any must-fix things, but if you update the branch for any other
reason, I'll happily remerge it (I remerge the "next" branch from
scratch every time I add things anyway, so it's no work on my side).
Bjorn
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