| Commit message (Collapse) | Author | Age | Files | Lines |
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* pci/host-tegra:
arm64: tegra: Enable PCIe on Jetson TX1
arm64: tegra: Add PCIe host bridge on Tegra210
PCI: tegra: Enable the driver on 64-bit ARM
PCI: tegra: Add Tegra210 support
PCI: tegra: Implement PCA enable workaround
dt-bindings: pci: tegra: Add Tegra210 support
PCI: tegra: Use new pci_register_host_bridge() interface
PCI: Export host bridge registration interface
PCI: Allow driver-specific data in host bridge
PCI: Add pci_register_host_bridge() interface
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Add support for the PCI host controller found on Tegra210 SoCs. It is very
similar to the variant found on Tegra124, with a couple of small
differences regarding the power supplies.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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* pci/host-rockchip:
PCI: rockchip: Move the deassert of pm/aclk/pclk after phy_init()
PCI: rockchip: Split out rockchip_cfg_atu()
PCI: rockchip: Clean up bit definitions for PCIE_RC_CONFIG_LCS
PCI: rockchip: Correct the use of FTS mask
PCI: rockchip: Remove the pointer to L1 substate cap
PCI: rockchip: Specify the link capability
PCI: rockchip: Fix negotiated lanes calculation
PCI: rockchip: Add Kconfig COMPILE_TEST
PCI: rockchip: Mark RC as common clock architecture
PCI: rockchip: Provide captured slot power limit and scale
PCI: rockchip: Add three new resets as required properties
PCI: Don't attempt to claim shadow copies of ROM
PCI: designware: Check for iATU unroll support after initializing host
PCI: qcom: Fix pp->dev usage before assignment
PCI: designware-plat: Update author email address
PCI: layerscape: Fix drvdata usage before assignment
PCI: designware-plat: Change maintainer to Jose Abreu
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pm_rst, aclk_rst, pclk_rst was controlled by ROM code so the software
wasn't needed to control it again in theory. But it didn't work properly,
so we do need to do it again and add enough delay between the assert of
pm_rst and the deassert of pm_rst. The Soc intergrated with this
controller, rk3399, is still under MP test internally, so the backward
compatibility won't be a big deal.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Rob Herring <robh@kernel.org>
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* pci/host-rcar:
PCI: rcar: Add gen3 fallback compatibility string for pcie-rcar
PCI: rcar: Use gen2 fallback compatibility last
PCI: rcar-gen2: Use gen2 fallback compatibility last
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Add fallback compatibility string for the R-Car Gen 3 family. This is in
keeping with the both the existing fallback compatibility string for the
R-Car Gen 2 family and the fallback scheme being adopted wherever
appropriate for drivers for Renesas SoCs.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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* pci/host-qcom:
PCI: qcom: Add support for MSM8996 PCIe controller
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Add support for the MSM8996/APQ8096 PCIe controller. MSM8996 supports Gen
1/2, one lane, 3 PCIe root complexes with support for MSI and legacy
interrupts, and it conforms to PCI Express Base 2.1 specification.
Add a post_init callback to qcom_pcie_ops, as the PCIe pipe clocks are only
setup after the phy is powered on. It also adds an ltssm_enable callback
as it is very much different from other supported SoCs in the driver.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
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* pci/host-layerscape:
PCI: layerscape: Add LS1046a support
PCI: layerscape: Remove redundant error message from ls_pcie_probe()
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Add support for the LS1046a PCIe controller. This device has a different
LUT_DBG offset, so add "lut_dbg" to ls_pcie_drvdata to
describe this difference.
[bhelgaas: changelog, remove now-unused PCIE_LUT_DBG]
Signed-off-by: Mingkai Hu <mingkai.hu@nxp.com>
Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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* pci/host-iproc:
PCI: iproc: Skip check for legacy IRQ on PAXC buses
PCI: iproc: Fix incorrect MSI address alignment
PCI: iproc: Add support for the next-gen PAXB controller
PCI: iproc: Add PAXBv2 binding info
PCI: iproc: Add inbound DMA mapping support
PCI: iproc: Add optional dma-ranges
PCI: iproc: Make outbound mapping code more generic
PCI: iproc: Remove redundant outbound properties
PCI: iproc: Add PAXC v2 support
PCI: iproc: Add PAXCv2 related binding
PCI: iproc: Fix exception with multi-function devices
PCI: iproc: Add BCMA type
PCI: iproc: Do not reset PAXC when initializing the driver
PCI: iproc: Improve core register population
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Add new compatible string 'brcm,iproc-pcie-paxb-v2', for the next
generation of the iProc PAXB PCIe host controller.
Signed-off-by: Oza Oza <oza.oza@broadcom.com>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
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Add description for optional device tree property 'dma-ranges' for inbound
mapping.
Signed-off-by: Oza Oza <oza.oza@broadcom.com>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
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Remove the following outbound related device tree properties:
brcm,pcie-ob-window-size
brcm,pcie-ob-oarr-size
The above two properties are a bit duplicated in functions. In addition,
the next generation iProc PCIe controller has outbound mapping window that
supports more than just two sizes, which cannot be properly supported by
these properties.
[bhelgaas: changelog]
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
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Add new compatible string "brcm,iproc-pcie-paxc-v2" to the iProc PCIe
device tree binding document. "brcm,iproc-pcie-paxc-v2" is for the second
generation of the Broadcom iProc PCIe PAXC host controller.
Update the binding document with more detailed description of each
compatible string and compatible SoCs.
Add description of optional property "msi-map", for use with MSI
controllers with sideband data.
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
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Some of the host drivers have the requirement of knowing whether the EP
would never train at some link speed at all. For instance, on some boards,
the link won't train at 5 GT/s but the host driver still sacrifice some
cycles to wait for the result of training at 5 GT/s as the host could
actually support 5 GT/s. So we could parse this new property and make the
host drivers be aware of these cases.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
- support for interrupt virtualization in the AMD IOMMU driver. These
patches were shared with the KVM tree and are already merged through
that tree.
- generic DT-binding support for the ARM-SMMU driver. With this the
driver now makes use of the generic DMA-API code. This also required
some changes outside of the IOMMU code, but these are acked by the
respective maintainers.
- more cleanups and fixes all over the place.
* tag 'iommu-updates-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (40 commits)
iommu/amd: No need to wait iommu completion if no dte irq entry change
iommu/amd: Free domain id when free a domain of struct dma_ops_domain
iommu/amd: Use standard bitmap operation to set bitmap
iommu/amd: Clean up the cmpxchg64 invocation
iommu/io-pgtable-arm: Check for v7s-incapable systems
iommu/dma: Avoid PCI host bridge windows
iommu/dma: Add support for mapping MSIs
iommu/arm-smmu: Set domain geometry
iommu/arm-smmu: Wire up generic configuration support
Docs: dt: document ARM SMMU generic binding usage
iommu/arm-smmu: Convert to iommu_fwspec
iommu/arm-smmu: Intelligent SMR allocation
iommu/arm-smmu: Add a stream map entry iterator
iommu/arm-smmu: Streamline SMMU data lookups
iommu/arm-smmu: Refactor mmu-masters handling
iommu/arm-smmu: Keep track of S2CR state
iommu/arm-smmu: Consolidate stream map entry state
iommu/arm-smmu: Handle stream IDs more dynamically
iommu/arm-smmu: Set PRIVCFG in stage 1 STEs
iommu/arm-smmu: Support non-PCI devices with SMMUv3
...
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The existing IOMMU bindings are able to specify the relationship between
masters and IOMMUs, but they are insufficient for describing the general
case of hotpluggable busses such as PCI where the set of masters is not
known until runtime, and the relationship between masters and IOMMUs is
a property of the integration of the system.
This patch adds a generic binding for mapping PCI devices to IOMMUs,
using a new iommu-map property (specific to PCI*) which may be used to
map devices (identified by their Requester ID) to sideband data for the
IOMMU which they master through.
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Summary of PCI changes for the v4.9 merge window:
Enumeration:
- microblaze: Add multidomain support for procfs (Bharat Kumar Gogada)
Resource management:
- Ignore requested alignment for PROBE_ONLY and fixed resources (Yongji Xie)
- Ignore requested alignment for VF BARs (Yongji Xie)
PCI device hotplug:
- Make core explicitly non-modular (Paul Gortmaker)
PCIe native device hotplug:
- Rename pcie_isr() locals for clarity (Bjorn Helgaas)
- Return IRQ_NONE when we can't read interrupt status (Bjorn Helgaas)
- Remove unnecessary guard (Bjorn Helgaas)
- Clean up dmesg "Slot(%s)" messages (Bjorn Helgaas)
- Remove useless pciehp_get_latch_status() calls (Bjorn Helgaas)
- Clear attention LED on device add (Keith Busch)
- Allow exclusive userspace control of indicators (Keith Busch)
- Process all hotplug events before looking for new ones (Mayurkumar Patel)
- Don't re-read Slot Status when queuing hotplug event (Mayurkumar Patel)
- Don't re-read Slot Status when handling surprise event (Mayurkumar Patel)
- Make explicitly non-modular (Paul Gortmaker)
Power management:
- Afford direct-complete to devices with non-standard PM (Lukas Wunner)
- Query platform firmware for device power state (Lukas Wunner)
- Recognize D3cold in pci_update_current_state() (Lukas Wunner)
- Avoid unnecessary resume after direct-complete (Lukas Wunner)
- Make explicitly non-modular (Paul Gortmaker)
Virtualization:
- Mark Atheros AR9580 to avoid bus reset (Maik Broemme)
- Check for pci_setup_device() failure in pci_iov_add_virtfn() (Po Liu)
MSI:
- Enable PCI_MSI_IRQ_DOMAIN support for ARC (Joao Pinto)
AER:
- Remove aerdriver.nosourceid kernel parameter (Bjorn Helgaas)
- Remove aerdriver.forceload kernel parameter (Bjorn Helgaas)
- Fix aer_probe() kernel-doc comment (Cao jin)
- Add bus flag to skip source ID matching (Jon Derrick)
- Avoid memory allocation in interrupt handling path (Jon Derrick)
- Cache capability position (Keith Busch)
- Make explicitly non-modular (Paul Gortmaker)
- Remove duplicate AER severity translation (Tyler Baicar)
- Send correct severity to calculate AER severity (Tyler Baicar)
Precision Time Measurement:
- Add Precision Time Measurement (PTM) support (Jonathan Yong)
- Add PTM clock granularity information (Bjorn Helgaas)
- Add pci_enable_ptm() for drivers to enable PTM on endpoints (Bjorn Helgaas)
Generic host bridge driver:
- Fix pci_remap_iospace() failure path (Lorenzo Pieralisi)
- Make explicitly non-modular (Paul Gortmaker)
Altera host bridge driver:
- Remove redundant platform_get_resource() return value check (Bjorn Helgaas)
- Poll for link training status after retraining the link (Ley Foon Tan)
- Rework config accessors for use without a struct pci_bus (Ley Foon Tan)
- Move retrain from fixup to altera_pcie_host_init() (Ley Foon Tan)
- Make MSI explicitly non-modular (Paul Gortmaker)
- Make explicitly non-modular (Paul Gortmaker)
- Relax device number checking to allow SR-IOV (Po Liu)
ARM Versatile host bridge driver:
- Fix pci_remap_iospace() failure path (Lorenzo Pieralisi)
Axis ARTPEC-6 host bridge driver:
- Drop __init from artpec6_add_pcie_port() (Niklas Cassel)
Freescale i.MX6 host bridge driver:
- Make explicitly non-modular (Paul Gortmaker)
Intel VMD host bridge driver:
- Add quirk for AER to ignore source ID (Jon Derrick)
- Allocate IRQ lists with correct MSI-X count (Jon Derrick)
- Convert to use pci_alloc_irq_vectors() API (Jon Derrick)
- Eliminate vmd_vector member from list type (Jon Derrick)
- Eliminate index member from IRQ list (Jon Derrick)
- Synchronize with RCU freeing MSI IRQ descs (Keith Busch)
- Request userspace control of PCIe hotplug indicators (Keith Busch)
- Move VMD driver to drivers/pci/host (Keith Busch)
Marvell Aardvark host bridge driver:
- Fix pci_remap_iospace() failure path (Lorenzo Pieralisi)
- Remove redundant dev_err call in advk_pcie_probe() (Wei Yongjun)
Microsoft Hyper-V host bridge driver:
- Use zero-length array in struct pci_packet (Dexuan Cui)
- Use pci_function_description[0] in struct definitions (Dexuan Cui)
- Remove the unused 'wrk' in struct hv_pcibus_device (Dexuan Cui)
- Handle vmbus_sendpacket() failure in hv_compose_msi_msg() (Dexuan Cui)
- Handle hv_pci_generic_compl() error case (Dexuan Cui)
- Use list_move_tail() instead of list_del() + list_add_tail() (Wei Yongjun)
NVIDIA Tegra host bridge driver:
- Fix pci_remap_iospace() failure path (Lorenzo Pieralisi)
- Remove redundant _data suffix (Thierry Reding)
- Use of_device_get_match_data() (Thierry Reding)
Qualcomm host bridge driver:
- Make explicitly non-modular (Paul Gortmaker)
Renesas R-Car host bridge driver:
- Consolidate register space lookup and ioremap (Bjorn Helgaas)
- Don't disable/unprepare clocks on prepare/enable failure (Geert Uytterhoeven)
- Add multi-MSI support (Grigory Kletsko)
- Fix pci_remap_iospace() failure path (Lorenzo Pieralisi)
- Fix some checkpatch warnings (Sergei Shtylyov)
- Try increasing PCIe link speed to 5 GT/s at boot (Sergei Shtylyov)
Rockchip host bridge driver:
- Add DT bindings for Rockchip PCIe controller (Shawn Lin)
- Add Rockchip PCIe controller support (Shawn Lin)
- Improve the deassert sequence of four reset pins (Shawn Lin)
- Fix wrong transmitted FTS count (Shawn Lin)
- Increase the Max Credit update interval (Rajat Jain)
Samsung Exynos host bridge driver:
- Make explicitly non-modular (Paul Gortmaker)
ST Microelectronics SPEAr13xx host bridge driver:
- Make explicitly non-modular (Paul Gortmaker)
Synopsys DesignWare host bridge driver:
- Return data directly from dw_pcie_readl_rc() (Bjorn Helgaas)
- Exchange viewport of `MEMORYs' and `CFGs/IOs' (Dong Bo)
- Check LTSSM training bit before deciding link is up (Jisheng Zhang)
- Move link wait definitions to .c file (Joao Pinto)
- Wait for iATU enable (Joao Pinto)
- Add iATU Unroll feature (Joao Pinto)
- Fix pci_remap_iospace() failure path (Lorenzo Pieralisi)
- Make explicitly non-modular (Paul Gortmaker)
- Relax device number checking to allow SR-IOV (Po Liu)
- Keep viewport fixed for IO transaction if num_viewport > 2 (Pratyush Anand)
- Remove redundant platform_get_resource() return value check (Wei Yongjun)
TI DRA7xx host bridge driver:
- Make explicitly non-modular (Paul Gortmaker)
TI Keystone host bridge driver:
- Propagate request_irq() failure (Wei Yongjun)
Xilinx AXI host bridge driver:
- Keep both legacy and MSI interrupt domain references (Bharat Kumar Gogada)
- Clear interrupt register for invalid interrupt (Bharat Kumar Gogada)
- Clear correct MSI set bit (Bharat Kumar Gogada)
- Dispose of MSI virtual IRQ (Bharat Kumar Gogada)
- Make explicitly non-modular (Paul Gortmaker)
- Relax device number checking to allow SR-IOV (Po Liu)
Xilinx NWL host bridge driver:
- Expand error logging (Bharat Kumar Gogada)
- Enable all MSI interrupts using MSI mask (Bharat Kumar Gogada)
- Make explicitly non-modular (Paul Gortmaker)
Miscellaneous:
- Drop CONFIG_KEXEC_CORE ifdeffery (Lukas Wunner)
- portdrv: Make explicitly non-modular (Paul Gortmaker)
- Make DPC explicitly non-modular (Paul Gortmaker)"
* tag 'pci-v4.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (105 commits)
x86/PCI: VMD: Move VMD driver to drivers/pci/host
PCI: rockchip: Fix wrong transmitted FTS count
PCI: rockchip: Improve the deassert sequence of four reset pins
PCI: rockchip: Increase the Max Credit update interval
PCI: rcar: Try increasing PCIe link speed to 5 GT/s at boot
PCI/AER: Fix aer_probe() kernel-doc comment
PCI: Ignore requested alignment for VF BARs
PCI: Ignore requested alignment for PROBE_ONLY and fixed resources
PCI: Avoid unnecessary resume after direct-complete
PCI: Recognize D3cold in pci_update_current_state()
PCI: Query platform firmware for device power state
PCI: Afford direct-complete to devices with non-standard PM
PCI/AER: Cache capability position
PCI/AER: Avoid memory allocation in interrupt handling path
x86/PCI: VMD: Request userspace control of PCIe hotplug indicators
PCI: pciehp: Allow exclusive userspace control of indicators
ACPI / APEI: Send correct severity to calculate AER severity
PCI/AER: Remove duplicate AER severity translation
x86/PCI: VMD: Synchronize with RCU freeing MSI IRQ descs
x86/PCI: VMD: Eliminate index member from IRQ list
...
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'pci/host-designware', 'pci/host-hv', 'pci/host-keystone', 'pci/host-rcar', 'pci/host-rockchip', 'pci/host-tegra' and 'pci/host-xilinx' into next
* pci/host-aardvark:
PCI: aardvark: Remove redundant dev_err call in advk_pcie_probe()
* pci/host-altera:
PCI: altera: Remove redundant platform_get_resource() return value check
PCI: altera: Move retrain from fixup to altera_pcie_host_init()
PCI: altera: Rework config accessors for use without a struct pci_bus
PCI: altera: Poll for link training status after retraining the link
* pci/host-artpec:
PCI: artpec6: Drop __init from artpec6_add_pcie_port()
* pci/host-designware:
PCI: designware: Remove redundant platform_get_resource() return value check
PCI: designware: Exchange viewport of `MEMORYs' and `CFGs/IOs'
PCI: designware: Keep viewport fixed for IO transaction if num_viewport > 2
PCI: designware: Check LTSSM training bit before deciding link is up
PCI: designware: Add iATU Unroll feature
PCI: designware: Wait for iATU enable
PCI: designware: Move link wait definitions to .c file
PCI: designware: Return data directly from dw_pcie_readl_rc()
* pci/host-hv:
PCI: hv: Handle hv_pci_generic_compl() error case
PCI: hv: Handle vmbus_sendpacket() failure in hv_compose_msi_msg()
PCI: hv: Remove the unused 'wrk' in struct hv_pcibus_device
PCI: hv: Use pci_function_description[0] in struct definitions
PCI: hv: Use zero-length array in struct pci_packet
PCI: hv: Use list_move_tail() instead of list_del() + list_add_tail()
* pci/host-keystone:
PCI: keystone: Propagate request_irq() failure
* pci/host-rcar:
PCI: rcar: Try increasing PCIe link speed to 5 GT/s at boot
PCI: rcar: Fix some checkpatch warnings
PCI: rcar: Add multi-MSI support
PCI: rcar: Don't disable/unprepare clocks on prepare/enable failure
PCI: rcar: Consolidate register space lookup and ioremap
* pci/host-rockchip:
PCI: rockchip: Fix wrong transmitted FTS count
PCI: rockchip: Improve the deassert sequence of four reset pins
PCI: rockchip: Increase the Max Credit update interval
PCI: rockchip: Add Rockchip PCIe controller support
dt-bindings: PCI: rockchip: Add DT bindings for Rockchip PCIe controller
* pci/host-tegra:
PCI: tegra: Use of_device_get_match_data()
PCI: tegra: Remove redundant _data suffix
* pci/host-xilinx:
microblaze/PCI: Add multidomain support for procfs
PCI: xilinx: Dispose of MSI virtual IRQ
PCI: xilinx: Clear correct MSI set bit
PCI: xilinx: Clear interrupt register for invalid interrupt
PCI: xilinx: Keep both legacy and MSI interrupt domain references
PCI: xilinx-nwl: Enable all MSI interrupts using MSI mask
PCI: xilinx-nwl: Expand error logging
Conflicts:
drivers/pci/host/pcie-xilinx.c
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Add a binding that describes the Rockchip PCIe controller found on Rockchip
SoCs PCIe interface.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
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Most of the platforms have 3 or more viewports. For such platforms, We do
not need to share viewports between IO and CFG. Assign viewport 2 to IO
transactions in such cases.
Tested-by: Dong Bo <dongbo4@huawei.com>
Signed-off-by: Pratyush Anand <pratyush.anand@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
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- Increase config size. When using a PCIe switch,
the previous config size only had room for one device.
- Add bus range. Inherited optional property.
- Map downstream I/O to PCI address 0. We can map it to any
address, but let's be consistent with other drivers.
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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memory space
Updating device tree documentation with prefetchable memory
sapce.
Configuration space shifted to 64-bit address space.
Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Highlights:
- ARM64 support for ACPI host bridges
- new drivers for Axis ARTPEC-6 and Marvell Aardvark
- new pci_alloc_irq_vectors() interface for MSI-X, MSI, legacy INTx
- pci_resource_to_user() cleanup (more to come)
Detailed summary:
Enumeration:
- Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
- Add parent device field to ECAM struct pci_config_window (Jayachandran C)
- Add generic MCFG table handling (Tomasz Nowicki)
- Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
- Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)
Resource management:
- Add devm_request_pci_bus_resources() (Bjorn Helgaas)
- Unify pci_resource_to_user() declarations (Bjorn Helgaas)
- Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
- Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
- Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
- Ignore write combining when mapping I/O port space (Bjorn Helgaas)
- Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
- Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
- Support I/O resources when parsing host bridge resources (Jayachandran C)
- Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
- Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
- Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
- Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
- Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
- Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
- Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
- Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)
PCI device hotplug:
- Allow additional bus numbers for hotplug bridges (Keith Busch)
- Ignore interrupts during D3cold (Lukas Wunner)
Power management:
- Enforce type casting for pci_power_t (Andy Shevchenko)
- Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
- Put PCIe ports into D3 during suspend (Mika Westerberg)
- Power on bridges before scanning new devices (Mika Westerberg)
- Runtime resume bridge before rescan (Mika Westerberg)
- Add runtime PM support for PCIe ports (Mika Westerberg)
- Remove redundant check of pcie_set_clkpm (Shawn Lin)
Virtualization:
- Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
- Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
- Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
- Add ACS quirk for Solarflare SFC9220 (Edward Cree)
MSI:
- Fix PCI_MSI dependencies (Arnd Bergmann)
- Add pci_msix_desc_addr() helper (Christoph Hellwig)
- Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
- Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
- Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
- Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)
Error Handling:
- Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
- Remove DPC tristate module option (Keith Busch)
- Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)
Generic host bridge driver:
- Select IRQ_DOMAIN (Arnd Bergmann)
- Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
ACPI host bridge driver:
- Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
- Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
- Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
- Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)
Altera host bridge driver:
- Check link status before retrain link (Ley Foon Tan)
- Poll for link up status after retraining the link (Ley Foon Tan)
Axis ARTPEC-6 host bridge driver:
- Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
- Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
- Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)
Intel VMD host bridge driver:
- Use lock save/restore in interrupt enable path (Jon Derrick)
- Select device dma ops to override (Keith Busch)
- Initialize list item in IRQ disable (Keith Busch)
- Use x86_vector_domain as parent domain (Keith Busch)
- Separate MSI and MSI-X vector sharing (Keith Busch)
Marvell Aardvark host bridge driver:
- Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
- Add Aardvark PCI host controller driver (Thomas Petazzoni)
- Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)
Microsoft Hyper-V host bridge driver:
- Fix interrupt cleanup path (Cathy Avery)
- Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
- Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
NVIDIA Tegra host bridge driver:
- Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
- Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
- Use lower-case hex consistently for register definitions (Thierry Reding)
- Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
- Stop setting pcibios_min_mem (Thierry Reding)
Renesas R-Car host bridge driver:
- Drop gen2 dummy I/O port region (Bjorn Helgaas)
TI DRA7xx host bridge driver:
- Fix return value in case of error (Christophe JAILLET)
Xilinx AXI host bridge driver:
- Fix return value in case of error (Christophe JAILLET)
Miscellaneous:
- Make bus_attr_resource_alignment static (Ben Dooks)
- Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
- MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
- Make host bridge drivers explicitly non-modular (Paul Gortmaker)"
* tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (125 commits)
PCI: xgene: Make explicitly non-modular
PCI: thunder-pem: Make explicitly non-modular
PCI: thunder-ecam: Make explicitly non-modular
PCI: tegra: Make explicitly non-modular
PCI: rcar-gen2: Make explicitly non-modular
PCI: rcar: Make explicitly non-modular
PCI: mvebu: Make explicitly non-modular
PCI: layerscape: Make explicitly non-modular
PCI: keystone: Make explicitly non-modular
PCI: hisi: Make explicitly non-modular
PCI: generic: Make explicitly non-modular
PCI: designware-plat: Make it explicitly non-modular
PCI: artpec6: Make explicitly non-modular
PCI: armada8k: Make explicitly non-modular
PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency
PCI: Add ACS quirk for Solarflare SFC9220
arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
PCI: aardvark: Add Aardvark PCI host controller driver
dt-bindings: add DT binding for the Aardvark PCIe controller
PCI: tegra: Program PADS_REFCLK_CFG* registers with per-SoC values
...
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'pci/host-hv', 'pci/host-vmd' and 'pci/host-xilinx' into next
* pci/host-aardvark:
arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
PCI: aardvark: Add Aardvark PCI host controller driver
dt-bindings: add DT binding for the Aardvark PCIe controller
* pci/host-altera:
PCI: altera: Poll for link up status after retraining the link
PCI: altera: Check link status before retrain link
PCI: altera: Reorder read/write functions
* pci/host-dra7xx:
PCI: dra7xx: Fix return value in case of error
* pci/host-hv:
PCI: hv: Fix interrupt cleanup path
PCI: hv: Handle all pending messages in hv_pci_onchannelcallback()
PCI: hv: Don't leak buffer in hv_pci_onchannelcallback()
* pci/host-vmd:
x86/PCI: VMD: Separate MSI and MSI-X vector sharing
x86/PCI: VMD: Use x86_vector_domain as parent domain
x86/PCI: VMD: Use lock save/restore in interrupt enable path
x86/PCI: VMD: Initialize list item in IRQ disable
x86/PCI: VMD: Select device dma ops to override
* pci/host-xilinx:
PCI: xilinx: Fix return value in case of error
Manually apply changes from pci/demodularize-hosts and
pci/host-request-windows to drivers/pci/host/pci-aardvark.c
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Add the documentation for the Device Tree binding for the Aardvark PCIe
controller, found on Marvell Armada 3700 ARM64 SoCs.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Add the Device Tree binding documentation that allows to describe the PCIe
controller found in the Axis ARTPEC-6 SoC.
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
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Add 'dma-coherent' description for PCI nodes.
The 'dma-coherent' indicates that the hardware IP block can ensure
the coherency of the data transferred from/to the IP block. This
can avoid the software cache flush/invalid actions, and improve
the performance significantly.
The PCI IP block of ls1043a has this capability, so adding
this feature to improve the PCI performance.
Signed-off-by: Liu Gang <Gang.Liu@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
- Rewrite of the unflattening code to avoid recursion and lessen the
stack usage.
- Rewrite of the phandle args parsing code to get rid of the fixed args
size. This is needed for IOMMU code.
- Sync to latest dtc which adds more dts style checking. These
warnings are enabled with "W=1" compiles.
- Tegra documentation updates related to the above warnings.
- A bunch of spelling and other doc fixes.
- Various vendor prefix additions.
* tag 'devicetree-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (52 commits)
devicetree: Add Creative Technology vendor id
gpio: dt-bindings: add ibm,ppc4xx-gpio binding
of/unittest: Remove unnecessary module.h header inclusion
drivers/of: Fix build warning in populate_node()
drivers/of: Fix depth when unflattening devicetree
of: dynamic: changeset prop-update revert fix
drivers/of: Export of_detach_node()
drivers/of: Return allocated memory from of_fdt_unflatten_tree()
drivers/of: Specify parent node in of_fdt_unflatten_tree()
drivers/of: Rename unflatten_dt_node()
drivers/of: Avoid recursively calling unflatten_dt_node()
drivers/of: Split unflatten_dt_node()
of: include errno.h in of_graph.h
of: document refcount incrementation of of_get_cpu_node()
Documentation: dt: soc: fix spelling mistakes
Documentation: dt: power: fix spelling mistake
Documentation: dt: pinctrl: fix spelling mistake
Documentation: dt: opp: fix spelling mistake
Documentation: dt: net: fix spelling mistakes
Documentation: dt: mtd: fix spelling mistake
...
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
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Remove the 0x in the unit address because it shouldn't be there.
Cc: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Refine PCI support check in pcibios_init() (Adrian-Ken Rueegsegger)
- Provide common functions for ECAM mapping (Jayachandran C)
- Allow all PCIe services on non-ACPI host bridges (Jon Derrick)
- Remove return values from pcie_port_platform_notify() and relatives (Jon Derrick)
- Widen portdrv service type from 4 bits to 8 bits (Keith Busch)
- Add Downstream Port Containment portdrv service type (Keith Busch)
- Add Downstream Port Containment driver (Keith Busch)
Resource management:
- Identify Enhanced Allocation (EA) BAR Equivalent resources in sysfs (Alex Williamson)
- Supply CPU physical address (not bus address) to iomem_is_exclusive() (Bjorn Helgaas)
- alpha: Call iomem_is_exclusive() for IORESOURCE_MEM, but not IORESOURCE_IO (Bjorn Helgaas)
- Mark Broadwell-EP Home Agent 1 as having non-compliant BARs (Prarit Bhargava)
- Disable all BAR sizing for devices with non-compliant BARs (Prarit Bhargava)
- Move PCI I/O space management from OF to PCI core code (Tomasz Nowicki)
PCI device hotplug:
- acpiphp_ibm: Avoid uninitialized variable reference (Dan Carpenter)
- Use cached copy of PCI_EXP_SLTCAP_HPC bit (Lukas Wunner)
Virtualization:
- Mark Intel i40e NIC INTx masking as broken (Alex Williamson)
- Reverse standard ACS vs device-specific ACS enabling (Alex Williamson)
- Work around Intel Sunrise Point PCH incorrect ACS capability (Alex Williamson)
IOMMU:
- Add pci_add_dma_alias() to abstract implementation (Bjorn Helgaas)
- Move informational printk to pci_add_dma_alias() (Bjorn Helgaas)
- Add support for multiple DMA aliases (Jacek Lawrynowicz)
- Add DMA alias quirk for mic_x200_dma (Jacek Lawrynowicz)
Thunderbolt:
- Fix double free of drom buffer (Andreas Noever)
- Add Intel Thunderbolt device IDs (Lukas Wunner)
- Fix typos and magic number (Lukas Wunner)
- Support 1st gen Light Ridge controller (Lukas Wunner)
Generic host bridge driver:
- Use generic ECAM API (Jayachandran C)
Cavium ThunderX host bridge driver:
- Don't clobber read-only bits in bridge config registers (David Daney)
- Use generic ECAM API (Jayachandran C)
Freescale i.MX6 host bridge driver:
- Use enum instead of bool for variant indicator (Andrey Smirnov)
- Implement reset sequence for i.MX6+ (Andrey Smirnov)
- Factor out ref clock enable (Bjorn Helgaas)
- Add initial imx6sx support (Christoph Fritz)
- Add reset-gpio-active-high boolean property to DT (Petr Štetiar)
- Add DT property for link gen, default to Gen1 (Tim Harvey)
- dts: Specify imx6qp version of PCIe core (Andrey Smirnov)
- dts: Fix PCIe reset GPIO polarity on Toradex Apalis Ixora (Petr Štetiar)
Marvell Armada host bridge driver:
- add DT binding for Marvell Armada 7K/8K PCIe controller (Thomas Petazzoni)
- Add driver for Marvell Armada 7K/8K PCIe controller (Thomas Petazzoni)
Marvell MVEBU host bridge driver:
- Constify mvebu_pcie_pm_ops structure (Jisheng Zhang)
- Use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS for mvebu_pcie_pm_ops (Jisheng Zhang)
Microsoft Hyper-V host bridge driver:
- Report resources release after stopping the bus (Vitaly Kuznetsov)
- Add explicit barriers to config space access (Vitaly Kuznetsov)
Renesas R-Car host bridge driver:
- Select PCI_MSI_IRQ_DOMAIN (Arnd Bergmann)
Synopsys DesignWare host bridge driver:
- Remove incorrect RC memory base/limit configuration (Gabriele Paoloni)
- Move Root Complex setup code to dw_pcie_setup_rc() (Jisheng Zhang)
TI Keystone host bridge driver:
- Add error IRQ handler (Murali Karicheri)
- Remove unnecessary goto statement (Murali Karicheri)
Miscellaneous:
- Fix spelling errors (Colin Ian King)"
* tag 'pci-v4.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (48 commits)
PCI: Disable all BAR sizing for devices with non-compliant BARs
x86/PCI: Mark Broadwell-EP Home Agent 1 as having non-compliant BARs
PCI: Identify Enhanced Allocation (EA) BAR Equivalent resources in sysfs
PCI, of: Move PCI I/O space management to PCI core code
PCI: generic, thunder: Use generic ECAM API
PCI: Provide common functions for ECAM mapping
PCI: hv: Add explicit barriers to config space access
PCI: Use cached copy of PCI_EXP_SLTCAP_HPC bit
PCI: Add Downstream Port Containment driver
PCI: Add Downstream Port Containment portdrv service type
PCI: Widen portdrv service type from 4 bits to 8 bits
PCI: designware: Remove incorrect RC memory base/limit configuration
PCI: hv: Report resources release after stopping the bus
ARM: dts: imx6qp: Specify imx6qp version of PCIe core
PCI: imx6: Implement reset sequence for i.MX6+
PCI: imx6: Use enum instead of bool for variant indicator
PCI: thunder: Don't clobber read-only bits in bridge config registers
thunderbolt: Fix double free of drom buffer
PCI: rcar: Select PCI_MSI_IRQ_DOMAIN
PCI: armada: Add driver for Marvell Armada 7K/8K PCIe controller
...
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'pci/host-imx6', 'pci/host-keystone', 'pci/host-mvebu', 'pci/host-rcar', 'pci/host-thunder' and 'pci/host-vmd' into next
* pci/host-armada:
PCI: armada: Add driver for Marvell Armada 7K/8K PCIe controller
dt-bindings: pci: add DT binding for Marvell Armada 7K/8K PCIe controller
* pci/host-designware:
PCI: designware: Remove incorrect RC memory base/limit configuration
PCI: designware: Move Root Complex setup code to dw_pcie_setup_rc()
* pci/host-hv:
PCI: hv: Report resources release after stopping the bus
* pci/host-imx6:
ARM: dts: imx6qp: Specify imx6qp version of PCIe core
PCI: imx6: Implement reset sequence for i.MX6+
PCI: imx6: Use enum instead of bool for variant indicator
PCI: imx6: Add DT property for link gen, default to Gen1
PCI: imx6: Add reset-gpio-active-high boolean property to DT
ARM: dts: imx6: Fix PCIe reset GPIO polarity on Toradex Apalis Ixora
PCI: imx6: Add initial imx6sx support
PCI: imx6: Factor out ref clock enable
Revert "PCI: imx6: Add support for active-low reset GPIO"
* pci/host-keystone:
PCI: keystone: Remove unnecessary goto statement
PCI: keystone: Add error IRQ handler
* pci/host-mvebu:
PCI: mvebu: Use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS for mvebu_pcie_pm_ops
PCI: mvebu: Constify mvebu_pcie_pm_ops structure
* pci/host-rcar:
PCI: rcar: Select PCI_MSI_IRQ_DOMAIN
* pci/host-thunder:
PCI: thunder: Don't clobber read-only bits in bridge config registers
* pci/host-vmd:
PCI: Remove return values from pcie_port_platform_notify() and relatives
PCI/ACPI: Allow all PCIe services on non-ACPI host bridges
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Keystone PCI hardware generates error interrupts at RC using a platform IRQ
instead of a standard MSI or legacy IRQ. Add a simple error handler that
logs the fatal interrupt status to the console.
[bhelgaas: s/node/dev->of_node/, tidy comments, return irqreturn_t directly]
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Kumar Gala <galak@codeaurora.org>
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I.MX6+ has a dedicated bit for resetting PCIe core, which should be used
instead of a regular reset sequence since using the latter will hang the
SoC.
This commit is based on c34068d48273e24d392d9a49a38be807954420ed from
http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git
Tested-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
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Freescale has stated [1] that the LVDS clock source of the IMX6 does not
pass the PCI Gen2 clock jitter test, therefore unless an external Gen2
compliant external clock source is present and supplied back to the IMX6
PCIe core via LVDS CLK1/CLK2 you can not claim Gen2 compliance.
Add a DT property to specify Gen1 vs Gen2 and check this before allowing a
Gen2 link.
We default to Gen1 if the property is not present because at this time
there are no IMX6 boards in mainline that 'input' a clock on LVDS
CLK1/CLK2.
In order to be Gen2 compliant on IMX6 you need to:
- Have a Gen2 compliant external clock generator and route that clock back
to either LVDS CLK1 or LVDS CLK2 as an input (see IMX6SX-SabreSD
reference design).
- Specify this clock in the PCIe node in the DT (i.e.,
IMX6QDL_CLK_LVDS1_IN or IMX6QDL_CLK_LVDS2_IN instead of
IMX6QDL_CLK_LVDS1_GATE which configures it as a CLK output).
[1] https://community.freescale.com/message/453209
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
CC: Zhu Richard <Richard.Zhu@freescale.com>
CC: Akshay Bhat <akshay.bhat@timesys.com>
CC: Rob Herring <robh+dt@kernel.org>
CC: Shawn Guo <shawnguo@kernel.org>
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Currently the reset-gpio DT property which controls the PCI bus device
reset signal defaults to active-low reset sequence (L=reset state,
H=operation state) plus the code in reset function isn't GPIO polarity
aware - it doesn't matter if the defined reset-gpio is active-low or
active-high, it will always result into active-low reset sequence.
I've tried to fix it properly and change the reset-gpio reset sequence to
be polarity-aware, but this patch has been accepted and then reverted as it
has introduced few backward incompatible issues:
1. Some DTBs, for example, imx6qdl-sabresd, don't define reset-gpio
polarity correctly:
reset-gpio = <&gpio7 12 0>;
which means that it's defined as active-high, but in reality it's
active-low; thus it wouldn't work without a DTS fix.
2. The logic in the reset function is inverted:
gpio_set_value_cansleep(imx6_pcie->reset_gpio, 0)
msleep(100);
gpio_set_value_cansleep(imx6_pcie->reset_gpio, 1);
so even if some of the i.MX6 boards had reset-gpio polarity defined
correctly in their DTSes, they would stop working.
As we can't break old DTBs, we can't fix them, so we need to introduce this
new DT reset-gpio-active-high boolean property so we can support boards
with active-high reset sequence.
This active-high reset sequence is for example needed on Apalis SoMs, where
GPIO1_IO28, used to PCIe reset is not connected directly to PERST# PCIe
signal, but it's ORed with RESETBMCU coming off the PMIC, and thus is
inverted, active-high.
Tested-by: Tim Harvey <tharvey@gateworks.com> # Gateworks Ventana boards (which have active-low PERST#)
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
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Add initial PCIe support for the imx6 SoC derivate imx6sx. PCI MSI support
is untested as the necessary suspend/resume quirk is not included in this
patch.
This patch is heavily based on patches by Richard Zhu.
[bhelgaas: factor out refclk enable, fix adjacent typos in imx6q-pcie.txt]
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Acked-by: Richard Zhu <Richard.Zhu@freescale.com>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
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This commit adds the Device Tree binding documentation that allows to
describe the PCIe controller found in Marvell Armada 7K/8K SoCs.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Rob Herring <rob@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The XUSB pad controller allows PCIe lanes to be controlled individually,
providing fine-grained control over their power state. Previous attempts
at describing the XUSB pad controller in DT had erroneously assumed that
all PCIe lanes were driven by the same PHY, and hence the PCI host
controller would reference only a single PHY.
Moving to a representation of per-lane PHYs requires that the operating
system driver for the PCI host controller have access to the set of PHY
devices that make up the connection of each root port in order to power
up and down all of the lanes as necessary.
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM DT updates from Arnd Bergmann:
"These are all the updates to device tree files for 32-bit platforms,
plus a couple of related 64-bit updates:
New SoC support:
- Allwinner A83T
- Axis Artpec-6 SoC
- Mediatek MT7623 SoC
- TI Keystone K2G SoC
- ST Microelectronics stm32f469
New board or machine support:
- ARM Juno R2
- Buffalo Linkstation LS-QVL and LS-GL
- Cubietruck plus
- D-Link DIR-885L
- DT support for ARM RealView PB1176 and PB11MPCore
- Google Nexus 7
- Homlet v2
- Itead Ibox
- Lamobo R1
- LG Optimus Black
- Logicpd dm3730
- Raspberry Pi Model A
Other changes include
- Lots of updates for Qualcomm APQ8064, MSM8974 and others
- Improved support for Nokia N900 and other OMAP machines
- Common clk support for lpc32xx
- HDLCD display on ARM
- Improved stm32f429 support
- Improved Renesas device support, r8a779x and others
- Lots of Rockchip updates
- Samsung cleanups
- ADC support for Atmel SAMA5D2
- BCM2835 (Raspberry Pi) improvements
- Broadcom Northstar Plus enhancements
- OMAP GPMC rework
- Several improvements for Atmel SAMA5D2 / Xplained
- Global change to remove inofficial "arm,amba-bus" compatible
string"
* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (350 commits)
ARM, ARM64: dts: drop "arm,amba-bus" in favor of "simple-bus"
ARM: dts: artpec: dual-license on artpec6.dtsi
ARM: dts: ux500: add synaptics RMI4 for Ux500 TVK DT
arm64: dts: juno/vexpress: fix node name unit-address presence warnings
arm64: dts: foundation-v8: add SBSA Generic Watchdog device node
ARM: dts: at91: sama5d2 Xplained: add leds node
ARM: dts: at91: sama5d2 Xplained: add user push button
ARM: dts: at91: sama5d2 Xplained: set pin muxing for usb gadget and usb host
ARM: dts: stm32f429: Enable Ethernet on Eval board
ARM: dts: omap3-sniper: TWL4030 keypad support
Revert "ARM: dts: DRA7: Add dt nodes for PWMSS"
ARM: dts: dm814x: dra62x: Disable wait pin monitoring for NAND
ARM: dts: dm814x: dra62x: Fix NAND device nodes
ARM: dts: stm32f429: Add Ethernet support
ARM: dts: stm32f429: Add system config bank node
ARM: dts: at91: sama5d2: add nand0 and nfc0 nodes
ARM: dts: at91: sama5d2: add dma properties to UART nodes
ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node
ARM: dts: exynos: Don't overheat the Odroid XU3-Lite on high load
ARM: dts: exynos: Add cooling levels for Exynos5422/5800 CPUs
...
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The patch adds LS2085a to PCIe compatible to fix the compatibility
issue when using firmware with LS2085a compatible property.
Signed-off-by: Minghuan Lian <minghuan.lian@nxp.com>
Signed-off-by: Mingkai Hu <mingkai.hu@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"PCI changes for v4.6:
Enumeration:
- Disable IO/MEM decoding for devices with non-compliant BARs (Bjorn Helgaas)
- Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs (Bjorn Helgaas
Resource management:
- Mark shadow copy of VGA ROM as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
- Don't assign or reassign immutable resources (Bjorn Helgaas)
- Don't enable/disable ROM BAR if we're using a RAM shadow copy (Bjorn Helgaas)
- Set ROM shadow location in arch code, not in PCI core (Bjorn Helgaas)
- Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs (Bjorn Helgaas)
- ia64: Use ioremap() instead of open-coded equivalent (Bjorn Helgaas)
- ia64: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
- MIPS: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
- Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY (Bjorn Helgaas)
- Don't leak memory if sysfs_create_bin_file() fails (Bjorn Helgaas)
- rcar: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)
- designware: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)
Virtualization:
- Wait for up to 1000ms after FLR reset (Alex Williamson)
- Support SR-IOV on any function type (Kelly Zytaruk)
- Add ACS quirk for all Cavium devices (Manish Jaggi)
AER:
- Rename pci_ops_aer to aer_inj_pci_ops (Bjorn Helgaas)
- Restore pci_ops pointer while calling original pci_ops (David Daney)
- Fix aer_inject error codes (Jean Delvare)
- Use dev_warn() in aer_inject (Jean Delvare)
- Log actual error causes in aer_inject (Jean Delvare)
- Log aer_inject error injections (Jean Delvare)
VPD:
- Prevent VPD access for buggy devices (Babu Moger)
- Move pci_read_vpd() and pci_write_vpd() close to other VPD code (Bjorn Helgaas)
- Move pci_vpd_release() from header file to pci/access.c (Bjorn Helgaas)
- Remove struct pci_vpd_ops.release function pointer (Bjorn Helgaas)
- Rename VPD symbols to remove unnecessary "pci22" (Bjorn Helgaas)
- Fold struct pci_vpd_pci22 into struct pci_vpd (Bjorn Helgaas)
- Sleep rather than busy-wait for VPD access completion (Bjorn Helgaas)
- Update VPD definitions (Hannes Reinecke)
- Allow access to VPD attributes with size 0 (Hannes Reinecke)
- Determine actual VPD size on first access (Hannes Reinecke)
Generic host bridge driver:
- Move structure definitions to separate header file (David Daney)
- Add pci_host_common_probe(), based on gen_pci_probe() (David Daney)
- Expose pci_host_common_probe() for use by other drivers (David Daney)
Altera host bridge driver:
- Fix altera_pcie_link_is_up() (Ley Foon Tan)
Cavium ThunderX host bridge driver:
- Add PCIe host driver for ThunderX processors (David Daney)
- Add driver for ThunderX-pass{1,2} on-chip devices (David Daney)
Freescale i.MX6 host bridge driver:
- Add DT bindings to configure PHY Tx driver settings (Justin Waters)
- Move imx6_pcie_reset_phy() near other PHY handling functions (Lucas Stach)
- Move PHY reset into imx6_pcie_establish_link() (Lucas Stach)
- Remove broken Gen2 workaround (Lucas Stach)
- Move link up check into imx6_pcie_wait_for_link() (Lucas Stach)
Freescale Layerscape host bridge driver:
- Add "fsl,ls2085a-pcie" compatible ID (Yang Shi)
Intel VMD host bridge driver:
- Attach VMD resources to parent domain's resource tree (Jon Derrick)
- Set bus resource start to 0 (Keith Busch)
Microsoft Hyper-V host bridge driver:
- Add fwnode_handle to x86 pci_sysdata (Jake Oshins)
- Look up IRQ domain by fwnode_handle (Jake Oshins)
- Add paravirtual PCI front-end for Microsoft Hyper-V VMs (Jake Oshins)
NVIDIA Tegra host bridge driver:
- Add pci_ops.{add,remove}_bus() callbacks (Thierry Reding)
- Implement ->{add,remove}_bus() callbacks (Thierry Reding)
- Remove unused struct tegra_pcie.num_ports field (Thierry Reding)
- Track bus -> CPU mapping (Thierry Reding)
- Remove misleading PHYS_OFFSET (Thierry Reding)
Renesas R-Car host bridge driver:
- Depend on ARCH_RENESAS, not ARCH_SHMOBILE (Simon Horman)
Synopsys DesignWare host bridge driver:
- ARC: Add PCI support (Joao Pinto)
- Add generic dw_pcie_wait_for_link() (Joao Pinto)
- Add default link up check if sub-driver doesn't override (Joao Pinto)
- Add driver for prototyping kits based on ARC SDP (Joao Pinto)
TI Keystone host bridge driver:
- Defer probing if devm_phy_get() returns -EPROBE_DEFER (Shawn Lin)
Xilinx AXI host bridge driver:
- Use of_pci_get_host_bridge_resources() to parse DT (Bharat Kumar Gogada)
- Remove dependency on ARM-specific struct hw_pci (Bharat Kumar Gogada)
- Don't call pci_fixup_irqs() on Microblaze (Bharat Kumar Gogada)
- Update Zynq binding with Microblaze node (Bharat Kumar Gogada)
- microblaze: Support generic Xilinx AXI PCIe Host Bridge IP driver (Bharat Kumar Gogada)
Xilinx NWL host bridge driver:
- Add support for Xilinx NWL PCIe Host Controller (Bharat Kumar Gogada)
Miscellaneous:
- Check device_attach() return value always (Bjorn Helgaas)
- Move pci_set_flags() from asm-generic/pci-bridge.h to linux/pci.h (Bjorn Helgaas)
- Remove includes of empty asm-generic/pci-bridge.h (Bjorn Helgaas)
- ARM64: Remove generated include of asm-generic/pci-bridge.h (Bjorn Helgaas)
- Remove empty asm-generic/pci-bridge.h (Bjorn Helgaas)
- Remove includes of asm/pci-bridge.h (Bjorn Helgaas)
- Consolidate PCI DMA constants and interfaces in linux/pci-dma-compat.h (Bjorn Helgaas)
- unicore32: Remove unused HAVE_ARCH_PCI_SET_DMA_MASK definition (Bjorn Helgaas)
- Cleanup pci/pcie/Kconfig whitespace (Andreas Ziegler)
- Include pci/hotplug Kconfig directly from pci/Kconfig (Bjorn Helgaas)
- Include pci/pcie/Kconfig directly from pci/Kconfig (Bogicevic Sasa)
- frv: Remove stray pci_{alloc,free}_consistent() declaration (Christoph Hellwig)
- Move pci_dma_* helpers to common code (Christoph Hellwig)
- Add PCI_CLASS_SERIAL_USB_DEVICE definition (Heikki Krogerus)
- Add QEMU top-level IDs for (sub)vendor & device (Robin H. Johnson)
- Fix broken URL for Dell biosdevname (Naga Venkata Sai Indubhaskar Jupudi)"
* tag 'pci-v4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits)
PCI: Add PCI_CLASS_SERIAL_USB_DEVICE definition
PCI: designware: Add driver for prototyping kits based on ARC SDP
PCI: designware: Add default link up check if sub-driver doesn't override
PCI: designware: Add generic dw_pcie_wait_for_link()
PCI: Cleanup pci/pcie/Kconfig whitespace
PCI: Simplify pci_create_attr() control flow
PCI: Don't leak memory if sysfs_create_bin_file() fails
PCI: Simplify sysfs ROM cleanup
PCI: Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY
MIPS: Loongson 3: Keep CPU physical (not virtual) addresses in shadow ROM resource
MIPS: Loongson 3: Use temporary struct resource * to avoid repetition
ia64/PCI: Keep CPU physical (not virtual) addresses in shadow ROM resource
ia64/PCI: Use ioremap() instead of open-coded equivalent
ia64/PCI: Use temporary struct resource * to avoid repetition
PCI: Clean up pci_map_rom() whitespace
PCI: Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs
PCI: thunder: Add driver for ThunderX-pass{1,2} on-chip devices
PCI: thunder: Add PCIe host driver for ThunderX processors
PCI: generic: Expose pci_host_common_probe() for use by other drivers
PCI: generic: Add pci_host_common_probe(), based on gen_pci_probe()
...
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* pci/host-designware:
PCI: designware: Add driver for prototyping kits based on ARC SDP
PCI: designware: Add default link up check if sub-driver doesn't override
PCI: designware: Add generic dw_pcie_wait_for_link()
ARC: Add PCI support
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Add a reference platform driver for PCI RC IP Protoyping Kits based on the
ARC SDP.
[bhelgaas: changelog, split patch up, MAINTAINERS update]
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Pratyush Anand <pratyush.anand@gmail.com>
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'pci/host-rcar', 'pci/host-tegra', 'pci/host-thunder', 'pci/host-vmd', 'pci/host-xilinx' and 'pci/host-xilinx-nwl' into next
* pci/host-altera:
PCI: altera: Fix altera_pcie_link_is_up()
* pci/host-imx6:
PCI: imx6: Add DT bindings to configure PHY Tx driver settings
* pci/host-keystone:
PCI: keystone: Defer probing if devm_phy_get() returns -EPROBE_DEFER
* pci/host-rcar:
PCI: rcar: Depend on ARCH_RENESAS, not ARCH_SHMOBILE
* pci/host-tegra:
PCI: tegra: Remove misleading PHYS_OFFSET
PCI: tegra: Track bus -> CPU mapping
PCI: tegra: Remove unused struct tegra_pcie.num_ports field
PCI: tegra: Implement ->{add,remove}_bus() callbacks
PCI: Add pci_ops.{add,remove}_bus() callbacks
* pci/host-thunder:
PCI: thunder: Add driver for ThunderX-pass{1,2} on-chip devices
PCI: thunder: Add PCIe host driver for ThunderX processors
PCI: generic: Expose pci_host_common_probe() for use by other drivers
PCI: generic: Add pci_host_common_probe(), based on gen_pci_probe()
PCI: generic: Move structure definitions to separate header file
* pci/host-vmd:
x86/PCI: VMD: Attach VMD resources to parent domain's resource tree
x86/PCI: VMD: Set bus resource start to 0
x86/PCI: VMD: Document code for maintainability
* pci/host-xilinx:
microblaze/PCI: Support generic Xilinx AXI PCIe Host Bridge IP driver
PCI: xilinx: Update Zynq binding with Microblaze node
PCI: xilinx: Don't call pci_fixup_irqs() on Microblaze
PCI: xilinx: Remove dependency on ARM-specific struct hw_pci
PCI: xilinx: Use of_pci_get_host_bridge_resources() to parse DT
* pci/host-xilinx-nwl:
PCI: xilinx-nwl: Add support for Xilinx NWL PCIe Host Controller
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Add PCIe Root Port driver for Xilinx PCIe NWL bridge IP.
[bhelgaas: wait for link like dw_pcie_wait_for_link(), simplify bitmap
error path, typos, whitespace, fold in Dan Carpenter's PTR_ERR() fix]
Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Signed-off-by: Ravi Kiran Gummaluri <rgummal@xilinx.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
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Update Zynq PCI binding documentation with Microblaze node.
[bhelgaas: fix "microbalze_0_intc" typo]
Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Signed-off-by: Ravi Kiran Gummaluri <rgummal@xilinx.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
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The cavium,pci-thunder-ecam devices are exactly ECAM-based PCI root
complexes. These root complexes (loosely referred to as ECAM units in the
hardware manuals) are used to access the Thunder on-chip devices. They
are special in that all the BARs on devices behind these root complexes are
at fixed addresses.
Add a driver for these devices that synthesizes Enhanced Allocation (EA)
capability entries for each BAR.
Since this EA synthesis is needed for exactly two chip models, we can hard-
code some assumptions about the device topology and the layout of the
config space of specific DEVFNs in the driver.
[bhelgaas: changelog, whitespace]
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
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