linux-kernel - Re: [PATCH v2 00/26] Add support for PCIe RC and EP mode in TI's AM654 SoC

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Message-ID: <84369fe5-c627-2feb-8da5-1cfbb965c665@ti.com>
Date:   Mon, 25 Mar 2019 15:06:55 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Arnd Bergmann <arnd@...db.de>,
        Murali Karicheri <m-karicheri2@...com>
CC:     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>
Subject: Re: [PATCH v2 00/26] Add support for PCIe RC and EP mode in TI's
 AM654 SoC

Hi,

On 25/03/19 2:04 PM, 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 v1:
> *) Support for legacy interrupt in AM654 is removed (see backgrond 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.

Looks like I've missed updating the tags in the version that was sent out. I'll
resend the series. Sorry for the noise.

Thanks
Kishon

> 
> [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 +++++++++++++++---
>  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 +-
>  18 files changed, 682 insertions(+), 172 deletions(-)
>