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Date: Fri, 21 Sep 2018 15:51:15 +0530
From: Kishon Vijay Abraham I <kishon@...com>
To: Jingoo Han <jingoohan1@...il.com>,
Joao Pinto <Joao.Pinto@...opsys.com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Rob Herring <robh+dt@...nel.org>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Murali Karicheri <m-karicheri2@...com>,
Kishon Vijay Abraham I <kishon@...com>,
<Gustavo.Pimentel@...opsys.com>
CC: Mark Rutland <mark.rutland@....com>,
Santosh Shilimkar <ssantosh@...nel.org>,
Tero Kristo <t-kristo@...com>, Nishanth Menon <nm@...com>,
<linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Subject: [RFC PATCH 00/40] Cleanup pci-keystone.c and Add AM654 PCIe Support
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
The initial support for AM654 was merged recently [1]
[1] -> https://lore.kernel.org/lkml/20180626162615.19194-1-nm@ti.com/
Patch series includes the following
*) Merge pci-keystone-dw.c into pci-keystone.c so that we have single
file for PCIe keystone driver.
*) Cleanup the pci-keystone driver. In certain cases the DT binding is
also modified since PCIe in keystone has never worked in mainline
due to lack of PHY support.
*) Included the PHY driver here for completeness (though the driver
might go via linux-phy tree)
*) Included the device tree patches here. Once this series is reviewed
it'll be sent to be merged via Tony's tree.
*) Patch to fix ATU identification for designware version >= 4.80 in
designware core is also included here.
TODO:
*) Add Endpoint Support for AM654
*) Send a patch to fix the MRRS after the correct value is identified.
Once this series is reviewed I'll split the series and send to
corresponding subsytem Maintainers after removing RFC in subject.
Thanks
Kishon
Benoit Parrot (1):
arm64: dts: k3-am6: Add Main System Control Module node
Kishon Vijay Abraham I (39):
PCI: keystone: Use quirk to limit MRRS for K2G
PCI: keystone: Use quirk to set MRRS for PCI host bridge
PCI: keystone: Move dw_pcie_setup_rc out of ks_pcie_establish_link()
PCI: keystone: Do not initiate link training multiple times
PCI: keystone: Remove unused argument from ks_dw_pcie_host_init()
PCI: keystone: Add start_link/stop_link dw_pcie_ops
PCI: keystone: Merge pci-keystone-dw.c and pci-keystone.c
PCI: keystone: Cleanup MSI/legacy interrupt configuration and handling
PCI: keystone: Remove redundant platform_set_drvdata
PCI: keystone: Use uniform function naming convention
dt-bindings: PCI: keystone: Add bindings to get device control module
PCI: keystone: Use syscon APIs to get device id from control module
dt-bindings: PCI: keystone: Add "reg-names" binding information
PCI: keystone: Use platform_get_resource_byname to get memory
resources
PCI: keystone: Cleanup PHY handling
PCI: keystone: Invoke pm_runtime APIs to enable clock
PCI: keystone: Cleanup configuration space access
PCI: keystone: Get number of OB windows from DT and cleanup MEM space
configuration
PCI: keystone: Cleanup set_dbi_mode and get_dbi_mode
PCI: keystone: Cleanup ks_pcie_link_up()
PCI: keystone: Add debug error message for all errors
PCI: keystone: Reorder header file in alphabetical order
PCI: keystone: Cleanup macros defined in pci-keystone.c
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: 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 in AM654x Platforms
phy: core: Invoke pm_runtime_get_*/pm_runtime_put_* before invoking
reset callback
dt-bindings: phy: ti: Add dt binding documentation for SERDES in
AM654x SoC
phy: ti: Add a new SERDES driver for TI's AM654x SoC
ARM: dts: keystone-k2e: Use the updated binding to describe PCIe in
k2e
arm64: dts: k3-am6: Add "socionext,synquacer-pre-its" property to
gic_its
arm64: dts: k3-am6: Add mux-controller dt node required for muxing
SERDES
arm64: dts: k3-am6: Add SERDES DT node
arm64: dts: k3-am6: Add Root Complex PCIe dt node
.../bindings/pci/designware-pcie.txt | 7 +-
.../devicetree/bindings/pci/pci-keystone.txt | 17 +-
.../devicetree/bindings/phy/ti-phy.txt | 77 ++
MAINTAINERS | 2 +-
arch/arm/boot/dts/keystone-k2e.dtsi | 15 +-
arch/arm/boot/dts/keystone.dtsi | 18 +-
arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 142 +++
arch/arm64/boot/dts/ti/k3-am65.dtsi | 1 +
drivers/pci/controller/dwc/Kconfig | 2 +-
drivers/pci/controller/dwc/Makefile | 2 +-
drivers/pci/controller/dwc/pci-keystone-dw.c | 484 --------
drivers/pci/controller/dwc/pci-keystone.c | 1059 +++++++++++++----
drivers/pci/controller/dwc/pci-keystone.h | 57 -
.../pci/controller/dwc/pcie-designware-host.c | 16 -
drivers/pci/controller/dwc/pcie-designware.c | 50 +-
drivers/pci/controller/dwc/pcie-designware.h | 13 +-
drivers/phy/phy-core.c | 6 +
drivers/phy/ti/Kconfig | 11 +
drivers/phy/ti/Makefile | 1 +
drivers/phy/ti/phy-am654-serdes.c | 513 ++++++++
include/dt-bindings/phy/phy-am654-serdes.h | 13 +
21 files changed, 1690 insertions(+), 816 deletions(-)
delete mode 100644 drivers/pci/controller/dwc/pci-keystone-dw.c
delete mode 100644 drivers/pci/controller/dwc/pci-keystone.h
create mode 100644 drivers/phy/ti/phy-am654-serdes.c
create mode 100644 include/dt-bindings/phy/phy-am654-serdes.h
--
2.17.1
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