Commit Graph

484 Commits

Author SHA1 Message Date
Kunihiko Hayashi
1ba415a277 dt-bindings: PCI: uniphier-ep: Add iATU register description
In the dt-bindings, "atu" reg-names is required to get the register space
for iATU in Synopsis DWC version 4.80 or later.

Link: https://lore.kernel.org/r/1601444167-11316-3-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-10-13 09:52:49 +01:00
Kunihiko Hayashi
927f56d67f dt-bindings: PCI: uniphier: Add iATU register description
In the dt-bindings, "atu" reg-names is required to get the register space
for iATU in Synopsys DWC version 4.80 or later.

Link: https://lore.kernel.org/r/1601444167-11316-2-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2020-10-13 09:52:49 +01:00
Rob Herring
6a0e321ea7 dt-bindings: Explicitly allow additional properties in common schemas
In order to add meta-schema checks for additional/unevaluatedProperties
being present, all schema need to make this explicit. As common/shared
schema are included by other schemas, they should always allow for
additionalProperties.

Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20201005183830.486085-5-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-07 11:30:06 -05:00
Rob Herring
6fdc6e23a7 dt-bindings: Add missing 'unevaluatedProperties'
This doesn't yet do anything in the tools, but make it explicit so we can
check either 'unevaluatedProperties' or 'additionalProperties' is present
in schemas.

'unevaluatedProperties' is appropriate when including another schema (via
'$ref') and all possible properties and/or child nodes are not
explicitly listed in the schema with the '$ref'.

This is in preparation to add a meta-schema to check for missing
'unevaluatedProperties' or 'additionalProperties'. This has been a
constant source of review issues.

Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20201005183830.486085-2-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-07 11:26:41 -05:00
Rob Herring
5be478f9c2 dt-bindings: Another round of adding missing 'additionalProperties'
Another round of wack-a-mole. The json-schema default is additional
unknown properties are allowed, but for DT all properties should be
defined.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Baolin Wang <baolin.wang7@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewd-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Sebastian Reichel <sre@kernel.org>
Link: https://lore.kernel.org/r/20201002234143.3570746-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-06 10:55:25 -05:00
Xiaowei Bao
16421e14ad dt-bindings: pci: layerscape-pci: Add compatible strings for ls1088a and ls2088a
Add compatible strings for ls1088a and ls2088a.

Link: https://lore.kernel.org/r/20200918080024.13639-6-Zhiqiang.Hou@nxp.com
Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2020-09-21 11:46:04 +01:00
Jim Quinlan
e6f98b2924 dt-bindings: PCI: Add bindings for more Brcmstb chips
- Add compatible strings for three more Broadcom STB chips: 7278, 7216,
  7211 (STB version of RPi4).
- Add new property 'brcm,scb-sizes'.
- Add new property 'resets'.
- Add new property 'reset-names' for 7216 only.
- Allow 'ranges' and 'dma-ranges' to have more than one item and update
  the example to show this.

Link: https://lore.kernel.org/r/20200911175232.19016-3-james.quinlan@broadcom.com
Signed-off-by: Jim Quinlan <jquinlan@broadcom.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-09-17 12:30:38 +01:00
Lad Prabhakar
d16d538ff4 dt-bindings: PCI: rcar: Add device tree support for r8a7742
Add support for r8a7742. The Renesas RZ/G1H (R8A7742) PCIe controller
is identical to the R-Car Gen2 family.

Link: https://lore.kernel.org/r/20200810174156.30880-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
2020-09-07 15:47:16 +01:00
Lad Prabhakar
5e94083c78 dt-bindings: pci: rcar-pci-ep: Document r8a774e1
Document the support for R-Car PCIe EP on R8A774E1 SoC device.

Link: https://lore.kernel.org/r/20200904103851.3946-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-07 12:19:32 +01:00
Lad Prabhakar
2de82ec866 dt-bindings: pci: rcar-pci-ep: Document r8a774a1 and r8a774b1
Document the support for R-Car PCIe EP on R8A774A1 and R8A774B1 SoC
devices.

Also constify "renesas,rcar-gen3-pcie-ep" so that it can be used as
fallback compatible string for R-Car Gen3 and RZ/G2 devices as the
PCIe module is identical.

Link: https://lore.kernel.org/r/20200814173037.17822-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-09-07 11:11:26 +01:00
Rob Herring
a326462cba dt-bindings: PCI: intel,lgm-pcie: Fix matching on all snps,dw-pcie instances
The intel,lgm-pcie binding is matching on all snps,dw-pcie instances
which is wrong. Add a custom 'select' entry to fix this.

Fixes: e54ea45a49 ("dt-bindings: PCI: intel: Add YAML schemas for the PCIe RC controller")
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org
Reviewed-by: Dilip Kota <eswara.kota@linux.intel.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-08-21 15:51:01 -06:00
Rob Herring
5f0b06da5c dt-bindings: Remove more cases of 'allOf' containing a '$ref'
Another wack-a-mole pass of killing off unnecessary 'allOf + $ref'
usage.

json-schema versions draft7 and earlier have a weird behavior in that
any keywords combined with a '$ref' are ignored (silently). The correct
form was to put a '$ref' under an 'allOf'. This behavior is now changed
in the 2019-09 json-schema spec and '$ref' can be mixed with other
keywords. The json-schema library doesn't yet support this, but the
tooling now does a fixup for this and either way works.

This has been a constant source of review comments, so let's change this
treewide so everyone copies the simpler syntax.

Signed-off-by: Rob Herring <robh@kernel.org>
2020-08-14 09:28:52 -06:00
Bjorn Helgaas
f8917db956 Merge branch 'pci/xilinx-cpm'
* pci/xilinx-cpm:
  PCI: xilinx-cpm: Add Versal CPM Root Port driver
  PCI: xilinx-cpm: Add YAML schemas for Versal CPM Root Port
2020-08-05 18:24:21 -05:00
Bjorn Helgaas
fa6cc79a3e Merge branch 'remotes/lorenzo/pci/tegra'
- Revert tegra RAW fixup that caused a regression (Nicolas Chauvet)

- Remove PLL power supplies from tegra driver and DT binding (Thierry
  Reding)

* remotes/lorenzo/pci/tegra:
  PCI: tegra: Remove PLL power supplies
  dt-bindings: pci: tegra: Remove PLL power supplies
  PCI: tegra: Revert tegra124 raw_violation_fixup
2020-08-05 18:24:20 -05:00
Bjorn Helgaas
26418025ce Merge branch 'remotes/lorenzo/pci/dwc'
- Add qcom ipq806x support (Ansuel Smith)

- Support max-link-speed DT property for qcom (Sham Muthayyan)

- Use PCI core #defines instead of adding qcom-specific ones (Ansuel Smith)

- Convert to devm_platform_ioremap_resource_byname() instead of open-coding
  platform_get_resource_byname() and devm_ioremap_resource() for dra7xx,
  keystone, artpec6, designware-plat, histb, intel-gw, kirin, qcom,
  uniphier (Dejin Zheng)

- Remove non-ECAM HiSilicon hip05/hip06 driver (Rob Herring)

* remotes/lorenzo/pci/dwc:
  PCI: dwc: hisi: Remove non-ECAM HiSilicon hip05/hip06 driver
  PCI: dwc: Convert to devm_platform_ioremap_resource_byname()
  PCI: qcom: Replace define with standard value
  PCI: qcom: Support pci speed set for ipq806x
  dt-bindings: PCI: qcom: Add ipq8064 rev 2 variant
  PCI: qcom: Add ipq8064 rev2 variant
  PCI: qcom: Add support for tx term offset for rev 2.1.0
  PCI: qcom: Define some PARF params needed for ipq8064 SoC
  PCI: qcom: Use bulk clk api and assert on error
  dt-bindings: PCI: qcom: Add ext reset
  PCI: qcom: Add missing reset for ipq806x
  PCI: qcom: Change duplicate PCI reset to phy reset
  dt-bindings: PCI: qcom: Add missing clks
  PCI: qcom: Add missing ipq806x clocks in PCIe driver
2020-08-05 18:24:18 -05:00
Bjorn Helgaas
13a77336f4 Merge branch 'remotes/lorenzo/pci/cadence'
- Convert cadence to use standard "dma-ranges" DT property instead of its
  own "cdns,no-bar-match-nbits" (Kishon Vijay Abraham I)

- Fix pm_runtime_put_sync() issues in cadence error paths (Kishon Vijay
  Abraham I)

- Add PTR_ALIGN_DOWN macro (Kishon Vijay Abraham I)

- Convert cadence r/w accessors to only 32-bit accesses (Kishon Vijay
  Abraham I)

- Add cadence support to start Link and check Link status (Kishon Vijay
  Abraham I)

- Allow custom PCI ops for cadence-based drivers (Kishon Vijay Abraham I)

- Remove "mem" from cadence reg binding since it's not memory and it
  overlaps the PCIe config and memory region (Kishon Vijay Abraham I)

- Add cadence ->cpu_addr_fixup() for platforms that require absolute
  addresses in the ATU, not just offsets (Kishon Vijay Abraham I)

- Update cadence Vendor IDs using local management registers, not
  architected config space (Kishon Vijay Abraham I)

- Add cadence endpoint driver MSI-X support (Kishon Vijay Abraham I)

- Add bindings and driver for TI J721E SoC, supporting both host and
  endpoint mode (Kishon Vijay Abraham I)

* remotes/lorenzo/pci/cadence:
  MAINTAINERS: Add Kishon Vijay Abraham I for TI J721E SoC PCIe
  misc: pci_endpoint_test: Add J721E in pci_device_id table
  PCI: j721e: Add TI J721E PCIe driver
  dt-bindings: PCI: Add EP mode dt-bindings for TI's J721E SoC
  dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC
  PCI: cadence: Add MSI-X support to Endpoint driver
  PCI: cadence: Fix updating Vendor ID and Subsystem Vendor ID register
  PCI: cadence: Add new *ops* for CPU addr fixup
  dt-bindings: PCI: cadence: Remove "mem" from reg binding
  PCI: cadence: Allow pci_host_bridge to have custom pci_ops
  PCI: cadence: Add support to start link and verify link status
  PCI: cadence: Convert all r/w accessors to perform only 32-bit accesses
  linux/kernel.h: Add PTR_ALIGN_DOWN macro
  PCI: cadence: Fix cdns_pcie_{host|ep}_setup() error path
  PCI: cadence: Use "dma-ranges" instead of "cdns,no-bar-match-nbits" property
2020-08-05 18:24:18 -05:00
Bharat Kumar Gogada
e22fadb1d0 PCI: xilinx-cpm: Add YAML schemas for Versal CPM Root Port
Add YAML schemas documentation for Versal CPM Root Port driver.

Link: https://lore.kernel.org/r/1592312214-9347-2-git-send-email-bharat.kumar.gogada@xilinx.com
Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-08-05 17:04:24 -05:00
Kishon Vijay Abraham I
45b39e9289 dt-bindings: PCI: Add EP mode dt-bindings for TI's J721E SoC
Add PCIe EP mode dt-bindings for TI's J721E SoC.

Link: https://lore.kernel.org/r/20200722110317.4744-13-kishon@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-07-28 11:31:34 +01:00
Kishon Vijay Abraham I
431b53b81c dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC
Add host mode dt-bindings for TI's J721E SoC.

Link: https://lore.kernel.org/r/20200722110317.4744-12-kishon@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-07-28 11:31:34 +01:00
Thierry Reding
980d1f2f3d dt-bindings: pci: tegra: Remove PLL power supplies
The XUSB pad controller, which provides access to various USB, PCI and
SATA pads (or PHYs), needs to bring up the PLLs associated with these
pads. In order to properly do so, it needs to control the power supplied
to these PLLs.

Remove the PLL power supplies from the PCIe controller because it does
not need direct access to them. Instead it will only use the configured
pads provided by the XUSB pad controller.

Link: https://lore.kernel.org/r/20200623145528.1658337-1-thierry.reding@gmail.com
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-07-28 11:17:54 +01:00
Kishon Vijay Abraham I
f87b8383da dt-bindings: PCI: cadence: Remove "mem" from reg binding
"mem" is not a memory resource and it overlaps with PCIe config space
and memory region. Remove "mem" from reg binding.

Link: https://lore.kernel.org/r/20200722110317.4744-8-kishon@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-07-27 15:46:16 +01:00
Ansuel Smith
d511580ea9 dt-bindings: PCI: qcom: Add ipq8064 rev 2 variant
Document qcom,pcie-ipq8064-v2 needed to use different phy_tx0_term_offset.
In ipq8064 phy_tx0_term_offset is 7. In ipq8064 v2 other SoC it's set to 0
by default.

Link: https://lore.kernel.org/r/20200615210608.21469-11-ansuelsmth@gmail.com
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
2020-07-07 16:08:21 +01:00
Ansuel Smith
b11b8cc161 dt-bindings: PCI: qcom: Add ext reset
Document ext reset used in ipq8064 SoC by qcom PCIe driver.

Link: https://lore.kernel.org/r/20200615210608.21469-6-ansuelsmth@gmail.com
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
2020-07-07 16:08:20 +01:00
Ansuel Smith
736ae5c917 dt-bindings: PCI: qcom: Add missing clks
Document missing clks used in ipq8064 SoC.

Link: https://lore.kernel.org/r/20200615210608.21469-3-ansuelsmth@gmail.com
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
2020-07-07 16:08:20 +01:00
Alexander A. Klimov
7ecd4a8175 PCI: Replace http:// links with https://
Replace http:// links with https:// links.  This reduces the likelihood of
man-in-the-middle attacks when developers open these links.

  Deterministic algorithm:
  For each file:
    If not .svg:
      For each line:
	If doesn't contain `\bxmlns\b`:
	  For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	    If both the HTTP and HTTPS versions
	    return 200 OK and serve the same content:
	      Replace HTTP with HTTPS.

[bhelgaas: also update samsung.com links, drop sourceforge link]
Link: https://lore.kernel.org/r/20200627103050.71712-1-grandmaster@al2klimov.de
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-06-30 13:05:09 -05:00
Rob Herring
086e9074f5 dt-bindings: Remove more cases of 'allOf' containing a '$ref'
Another round of 'allOf' removals that came in this cycle.

json-schema versions draft7 and earlier have a weird behavior in that
any keywords combined with a '$ref' are ignored (silently). The correct
form was to put a '$ref' under an 'allOf'. This behavior is now changed
in the 2019-09 json-schema spec and '$ref' can be mixed with other
keywords. The json-schema library doesn't yet support this, but the
tooling now does a fixup for this and either way works.

This has been a constant source of review comments, so let's change this
treewide so everyone copies the simpler syntax.

Signed-off-by: Rob Herring <robh@kernel.org>
2020-06-11 13:50:43 -06:00
Linus Torvalds
3925c3bbdf Merge tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
 "Enumeration:

   - Program MPS for RCiEP devices (Ashok Raj)

   - Fix pci_register_host_bridge() device_register() error handling
     (Rob Herring)

   - Fix pci_host_bridge struct device release/free handling (Rob
     Herring)

  Resource management:

   - Allow resizing BARs for devices on root bus (Ard Biesheuvel)

  Power management:

   - Reduce Thunderbolt resume time by working around devices that don't
     support DLL Link Active reporting (Mika Westerberg)

   - Work around a Pericom USB controller OHCI/EHCI PME# defect
     (Kai-Heng Feng)

  Virtualization:

   - Add ACS quirk for Intel Root Complex Integrated Endpoints (Ashok
     Raj)

   - Avoid FLR for AMD Starship USB 3.0 (Kevin Buettner)

   - Avoid FLR for AMD Matisse HD Audio & USB 3.0 (Marcos Scriven)

  Error handling:

   - Use only _OSC (not HEST FIRMWARE_FIRST) to determine AER ownership
     (Alexandru Gagniuc, Kuppuswamy Sathyanarayanan)

   - Reduce verbosity by logging only ACPI_NOTIFY_DISCONNECT_RECOVER
     events (Kuppuswamy Sathyanarayanan)

   - Don't enable AER by default in Kconfig (Bjorn Helgaas)

  Peer-to-peer DMA:

   - Add AMD Zen Raven and Renoir Root Ports to whitelist (Alex Deucher)

  ASPM:

   - Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges (Kai-Heng Feng)

  Endpoint framework:

   - Fix DMA channel release in test (Kunihiko Hayashi)

   - Add page size as argument to pci_epc_mem_init() (Lad Prabhakar)

   - Add support to handle multiple base for mapping outbound memory
     (Lad Prabhakar)

  Generic host bridge driver:

   - Support building as module (Rob Herring)

   - Eliminate pci_host_common_probe wrappers (Rob Herring)

  Amlogic Meson PCIe controller driver:

   - Don't use FAST_LINK_MODE to set up link (Marc Zyngier)

  Broadcom STB PCIe controller driver:

   - Disable ASPM L0s if 'aspm-no-l0s' in DT (Jim Quinlan)

   - Fix clk_put() error (Jim Quinlan)

   - Fix window register offset (Jim Quinlan)

   - Assert fundamental reset on initialization (Nicolas Saenz Julienne)

   - Add notify xHCI reset property (Nicolas Saenz Julienne)

   - Add init routine for Raspberry Pi 4 VL805 USB controller (Nicolas
     Saenz Julienne)

   - Sync with Raspberry Pi 4 firmware for VL805 initialization (Nicolas
     Saenz Julienne)

  Cadence PCIe controller driver:

   - Remove "cdns,max-outbound-regions" DT property (replaced by
     "ranges") (Kishon Vijay Abraham I)

   - Read 32-bit (not 16-bit) Vendor ID/Device ID property from DT
     (Kishon Vijay Abraham I)

  Marvell Aardvark PCIe controller driver:

   - Improve link training (Marek Behún)

   - Add PHY support (Marek Behún)

   - Add "phys", "max-link-speed", "reset-gpios" to dt-binding (Marek
     Behún)

   - Train link immediately after enabling training to work around
     detection issues with some cards (Pali Rohár)

   - Issue PERST via GPIO to work around detection issues (Pali Rohár)

   - Don't blindly enable ASPM L0s (Pali Rohár)

   - Replace custom macros by standard linux/pci_regs.h macros (Pali
     Rohár)

  Microsoft Hyper-V host bridge driver:

   - Fix probe failure path to release resource (Wei Hu)

   - Retry PCI bus D0 entry on invalid device state for kdump (Wei Hu)

  Renesas R-Car PCIe controller driver:

   - Fix incorrect programming of OB windows (Andrew Murray)

   - Add suspend/resume (Kazufumi Ikeda)

   - Rename pcie-rcar.c to pcie-rcar-host.c (Lad Prabhakar)

   - Add endpoint controller driver (Lad Prabhakar)

   - Fix PCIEPAMR mask calculation (Lad Prabhakar)

   - Add r8a77961 to DT binding (Yoshihiro Shimoda)

  Socionext UniPhier Pro5 controller driver:

   - Add endpoint controller driver (Kunihiko Hayashi)

  Synopsys DesignWare PCIe controller driver:

   - Program outbound ATU upper limit register (Alan Mikhak)

   - Fix inner MSI IRQ domain registration (Marc Zyngier)

  Miscellaneous:

   - Check for platform_get_irq() failure consistently (negative return
     means failure) (Aman Sharma)

   - Fix several runtime PM get/put imbalances (Dinghao Liu)

   - Use flexible-array and struct_size() helpers for code cleanup
     (Gustavo A. R. Silva)

   - Update & fix issues in bridge emulation of PCIe registers (Jon
     Derrick)

   - Add macros for bridge window names (PCI_BRIDGE_IO_WINDOW, etc)
     (Krzysztof Wilczyński)

   - Work around Intel PCH MROMs that have invalid BARs (Xiaochun Lee)"

* tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (100 commits)
  PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver
  PCI: Add ACS quirk for Intel Root Complex Integrated Endpoints
  PCI/DPC: Print IRQ number used by port
  PCI/AER: Use "aer" variable for capability offset
  PCI/AER: Remove redundant dev->aer_cap checks
  PCI/AER: Remove redundant pci_is_pcie() checks
  PCI/AER: Remove HEST/FIRMWARE_FIRST parsing for AER ownership
  PCI: tegra: Fix runtime PM imbalance on error
  PCI: vmd: Filter resource type bits from shadow register
  PCI: tegra194: Fix runtime PM imbalance on error
  dt-bindings: PCI: Add UniPhier PCIe endpoint controller description
  PCI: hv: Use struct_size() helper
  PCI: Rename _DSM constants to align with spec
  PCI: Avoid FLR for AMD Starship USB 3.0
  PCI: Avoid FLR for AMD Matisse HD Audio & USB 3.0
  x86/PCI: Drop unused xen_register_pirq() gsi_override parameter
  PCI: dwc: Use private data pointer of "struct irq_domain" to get pcie_port
  PCI: amlogic: meson: Don't use FAST_LINK_MODE to set up link
  PCI: dwc: Fix inner MSI IRQ domain registration
  PCI: dwc: pci-dra7xx: Use devm_platform_ioremap_resource_byname()
  ...
2020-06-06 11:01:58 -07:00
Linus Torvalds
571d54ed91 Merge tag 'devicetree-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:

 - Convert various DT (non-binding) doc files to ReST

 - Various improvements to device link code

 - Fix __of_attach_node_sysfs refcounting bug

 - Add support for 'memory-region-names' with reserved-memory binding

 - Vendor prefixes for Protonic Holland, BeagleBoard.org, Alps, Check
   Point, Würth Elektronik, U-Boot, Vaisala, Baikal Electronics,
   Shanghai Awinic Technology Co., MikroTik, Silex Insight

 - A bunch more binding conversions to DT schema. Only 3K to go.

 - Add a minimum version check for schema tools

 - Treewide dropping of 'allOf' usage with schema references. Not needed
   in new json-schema spec.

 - Some formatting clean-ups of schemas

* tag 'devicetree-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (194 commits)
  dt-bindings: clock: Add documentation for X1830 bindings.
  dt-bindings: mailbox: Convert imx mu to json-schema
  dt-bindings: power: Convert imx gpcv2 to json-schema
  dt-bindings: power: Convert imx gpc to json-schema
  dt-bindings: Merge gpio-usb-b-connector with usb-connector
  dt-bindings: timer: renesas: cmt: Convert to json-schema
  dt-bindings: clock: Convert i.MX8QXP LPCG to json-schema
  dt-bindings: timer: Convert i.MX GPT to json-schema
  dt-bindings: thermal: rcar-thermal: Add device tree support for r8a7742
  dt-bindings: serial: Add binding for UART pin swap
  dt-bindings: geni-se: Add interconnect binding for GENI QUP
  dt-bindings: geni-se: Convert QUP geni-se bindings to YAML
  dt-bindings: vendor-prefixes: Add Silex Insight vendor prefix
  dt-bindings: input: touchscreen: edt-ft5x06: change reg property
  dt-bindings: usb: qcom,dwc3: Introduce interconnect properties for Qualcomm DWC3 driver
  dt-bindings: timer: renesas: mtu2: Convert to json-schema
  of/fdt: Remove redundant kbasename function call
  dt-bindings: clock: Convert i.MX1 clock to json-schema
  dt-bindings: clock: Convert i.MX21 clock to json-schema
  dt-bindings: clock: Convert i.MX25 clock to json-schema
  ...
2020-06-04 20:11:25 -07:00
Bjorn Helgaas
51755de739 Merge branch 'remotes/lorenzo/pci/rcar'
- Fix rcar OB window programming (Andrew Murray)

  - Add rcar suspend/resume support (Kazufumi Ikeda)

  - Add r8a77961 to DT binding (Yoshihiro Shimoda)

  - Rename pcie-rcar.c to pcie-rcar-host.c to make room for endpoint mode
    (Lad Prabhakar)

  - Move shareable code to pcie-rcar.c (Lad Prabhakar)

  - Correct PCIEPAMR mask calculation for "size < 128" (Lad Prabhakar)

  - Add endpoint support for multiple outbound memory windows (Lad
    Prabhakar)

  - Add R-Car PCIe endpoint driver and DT bindings (Lad Prabhakar)

* remotes/lorenzo/pci/rcar:
  MAINTAINERS: Add file patterns for rcar PCI device tree bindings
  PCI: rcar: Add endpoint mode support
  dt-bindings: PCI: rcar: Add bindings for R-Car PCIe endpoint controller
  PCI: endpoint: Add support to handle multiple base for mapping outbound memory
  PCI: endpoint: Pass page size as argument to pci_epc_mem_init()
  PCI: rcar: Fix calculating mask for PCIEPAMR register
  PCI: rcar: Move shareable code to a common file
  PCI: rcar: Rename pcie-rcar.c to pcie-rcar-host.c
  dt-bindings: pci: rcar: add r8a77961 support
  PCI: rcar: Add suspend/resume
  PCI: rcar: Fix incorrect programming of OB windows
2020-06-04 12:59:18 -05:00
Bjorn Helgaas
b9fcf4910b Merge branch 'remotes/lorenzo/pci/dwc'
- Simplify computation of msix_tbl (Jiri Slaby)

  - Make hisi_pcie_platform_ops static (Zou Wei)

  - Warn about resources above 4G (Alan Mikhak)

  - Make intel_pcie_cpu_addr() static (Jason Yan)

  - Use devm_platform_ioremap_resource_byname() to simplify code and
    improve error checking (Wei Yongjun)

  - Fix inner MSI IRQ domain registration so it doesn't confuse debugfs
    (Marc Zyngier)

  - Don't use FAST_LINK_MODE on meson (Marc Zyngier)

  - Add Socionext UniPhier Pro5 PCIe endpoint controller driver and DT
    description (Kunihiko Hayashi)

* remotes/lorenzo/pci/dwc:
  PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver
  dt-bindings: PCI: Add UniPhier PCIe endpoint controller description
  PCI: dwc: Use private data pointer of "struct irq_domain" to get pcie_port
  PCI: amlogic: meson: Don't use FAST_LINK_MODE to set up link
  PCI: dwc: Fix inner MSI IRQ domain registration
  PCI: dwc: pci-dra7xx: Use devm_platform_ioremap_resource_byname()
  PCI: dwc: intel: Make intel_pcie_cpu_addr() static
  PCI: dwc: Program outbound ATU upper limit register
  PCI: dwc: Make hisi_pcie_platform_ops static
  PCI: dwc: Clean up computing of msix_tbl
2020-06-04 12:59:15 -05:00
Bjorn Helgaas
712879510f Merge branch 'remotes/lorenzo/pci/cadence'
- Deprecate 'cdns,max-outbound-regions' and 'cdns,no-bar-match-nbits'
    bindings in favor of deriving them from 'ranges' and 'dma-ranges'
    (Kishon Vijay Abraham I)

  - Read Vendor and Device ID as 32 bits (not 16) from DT (Kishon Vijay
    Abraham I)

* remotes/lorenzo/pci/cadence:
  PCI: cadence: Fix to read 32-bit Vendor ID/Device ID property from DT
  PCI: cadence: Remove "cdns,max-outbound-regions" DT property
  dt-bindings: PCI: cadence: Deprecate inbound/outbound specific bindings
2020-06-04 12:59:15 -05:00
Bjorn Helgaas
a1dcc1aa6f Merge branch 'remotes/lorenzo/pci/brcmstb'
- Assert fundamental reset on initialization (Nicolas Saenz Julienne)

  - Remove unnecessary clk_put(); devm_clk_get() handles this automatically
    (Jim Quinlan)

  - Fix outbound memory window register stride offset (Jim Quinlan)

  - Add "aspm-no-l0s" property for brcmstb and disable ASPM L0s when
    present (Jim Quinlan)

  - Add property to notify Raspberry Pi firmware of xHCI reset (Nicolas
    Saenz Julienne)

  - Add Raspberry Pi VL805 xHCI init function to trigger VL805 firmware
    load (Nicolas Saenz Julienne)

  - Wait in brcmstb probe for Raspberry Pi VL805 firmware initialization
    (Nicolas Saenz Julienne)

  - Load Raspberry Pi VL805 firmware in USB early handoff quirk (Nicolas
    Saenz Julienne)

* remotes/lorenzo/pci/brcmstb:
  USB: pci-quirks: Add Raspberry Pi 4 quirk
  PCI: brcmstb: Wait for Raspberry Pi's firmware when present
  firmware: raspberrypi: Introduce vl805 init routine
  soc: bcm2835: Add notify xHCI reset property
  PCI: brcmstb: Disable L0s component of ASPM if requested
  dt-bindings: PCI: brcmstb: New prop 'aspm-no-l0s'
  PCI: brcmstb: Fix window register offset from 4 to 8
  PCI: brcmstb: Don't clk_put() a managed clock
  PCI: brcmstb: Assert fundamental reset on initialization
2020-06-04 12:59:14 -05:00
Lad Prabhakar
c6233c5049 dt-bindings: PCI: pci-rcar-gen2: Add device tree support for r8a7742
Add internal PCI bridge support for r8a7742 SoC. The Renesas RZ/G1H
(R8A7742) internal PCI bridge is identical to the R-Car Gen2 family.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-28 17:43:26 -06:00
Kunihiko Hayashi
eeab133e1f dt-bindings: PCI: Add UniPhier PCIe endpoint controller description
Add DT bindings for PCIe controller implemented in UniPhier SoCs
when configured in endpoint mode. This controller is based on
the DesignWare PCIe core.

Link: https://lore.kernel.org/r/1589457801-12796-2-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-05-28 17:34:16 +01:00
Jiaxun Yang
83e757ecfd dt-bindings: Document Loongson PCI Host Controller
PCI host controller found on Loongson PCHs and SoCs.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-05-27 12:53:24 +02:00
Lad Prabhakar
4c0f809209 dt-bindings: PCI: rcar: Add bindings for R-Car PCIe endpoint controller
This patch adds the bindings for the R-Car PCIe endpoint driver.

Link: https://lore.kernel.org/r/1588854799-13710-7-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
2020-05-22 12:35:32 +01:00
Kishon Vijay Abraham I
fb5f8f3ca5 dt-bindings: PCI: cadence: Deprecate inbound/outbound specific bindings
Deprecate cdns,max-outbound-regions and cdns,no-bar-match-nbits for
host mode as both these could be derived from "ranges" and "dma-ranges"
property. "cdns,max-outbound-regions" property would still be required
for EP mode.

Link: https://lore.kernel.org/r/20200508130646.23939-2-kishon@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Tom Joseph <tjoseph@cadence.com>
2020-05-18 15:52:33 +01:00
Marek Behún
e89897c9de dt-bindings: PCI: aardvark: Describe new properties
Document the possibility to reference a PHY and reset-gpios and to set
max-link-speed property.

Link: https://lore.kernel.org/r/20200430080625.26070-10-pali@kernel.org
Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
2020-05-18 14:40:39 +01:00
Jim Quinlan
420c517b1e dt-bindings: PCI: brcmstb: New prop 'aspm-no-l0s'
For various reasons, one may want to disable the ASPM L0s
capability.

Link: https://lore.kernel.org/r/20200507201544.43432-4-james.quinlan@broadcom.com
Signed-off-by: Jim Quinlan <jquinlan@broadcom.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2020-05-11 11:46:39 +01:00
Yoshihiro Shimoda
b24a0c16f7 dt-bindings: pci: rcar: add r8a77961 support
Add support for r8a77961 (R-Car M3-W+).

To avoid confusion between R-Car M3-W (R8A77960) and R-Car M3-W+
(R8A77961), this patch also updates the comment of
"renesas,pcie-r8a7796".

Link: https://lore.kernel.org/r/1586511020-31833-1-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
2020-05-07 09:37:11 +01:00
Rob Herring
3d21a46093 dt-bindings: Remove cases of 'allOf' containing a '$ref'
json-schema versions draft7 and earlier have a weird behavior in that
any keywords combined with a '$ref' are ignored (silently). The correct
form was to put a '$ref' under an 'allOf'. This behavior is now changed
in the 2019-09 json-schema spec and '$ref' can be mixed with other
keywords. The json-schema library doesn't yet support this, but the
tooling now does a fixup for this and either way works.

This has been a constant source of review comments, so let's change this
treewide so everyone copies the simpler syntax.

Scripted with ruamel.yaml with some manual fixups. Some minor whitespace
changes from the script.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de> # for I2C
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for-iio
Reviewed-by: Stephen Boyd <sboyd@kernel.org> # clock
Signed-off-by: Rob Herring <robh@kernel.org>
2020-05-03 11:10:41 -05:00
Linus Torvalds
854e80bcfd Merge tag 'arm-dt-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM devicetree updates from Arnd Bergmann:
 "Most of the commits are for additional hardware support and minor
  fixes for existing machines for all the usual platforms: qcom,
  amlogic, at91, gemini, mediatek, ti, socfpga, i.mx, layerscape,
  uniphier, rockchip, exynos, ux500, mvebu, tegra, stm32, renesas,
  sunxi, broadcom, omap, and versatile.

  The conversion of binding files to machine-readable yaml format
  continues, along with fixes found during the validation. Andre
  Przywara takes over maintainership for the old Calxeda Highbank
  platform and provides a number of updates.

  The OMAP2+ platforms see a continued move from platform data into dts
  files, for many devices that relied on a mix of auxiliary data in
  addition to the DT description

  A moderate number of new SoCs and machines are added, here is a full
  list:

   - Two new Qualcomm SoCs with their evaluation boards: Snapdragon 865
     (SM8250) is the current high-end phone chip, and IPQ6018 is a new
     WiFi-6 router chip.

   - Mediatek MT8516 application processor SoC for voice assistants,
     along with the "pumpkin" development board

   - NXP i.MX8M Plus SoC, a variant of the popular i.MX8M, along with an
     evaluation board.

   - Kontron "sl28" board family based on NXP LS1028A

   - Eleven variations of the new i.MX6 TechNexion Pico board, combining
     the "dwarf", "hobbit", "nymph" and "pi" baseboards with i.MX6/i.MX7
     SoM carriers

   - Three additional variants of the Toradex Colibri board family, all
     based on versions of the NXP i.MX7.

   - The Pinebook Pro laptop based on Rockchip RK3399

   - Samsung S7710 Galaxy Xcover 2, a 2013 vintage Android phone based
     on the ST-Ericsson u8500 platform

   - DH Electronics DHCOM SoM and PDK2 rev. 400 carrier based on
     STMicroelectronics stm32mp157

   - Renesas M3ULCB starter kit for R-Car M3-W+

   - Hoperun HiHope development board with Renesas RZ/G2M

   - Pine64 PineTab tablet and PinePhone phone, both based on Allwinner
     A64

   - Linutronix Testbox v2 for the Lamobo R1 router, based on Allwinner
     A20

   - PocketBook Touch Lux 3 ebook reader, based on Allwinner A13"

* tag 'arm-dt-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (520 commits)
  ARM: dts: ux500: Fix missing node renames
  arm64: dts: Revert "specify console via command line"
  MAINTAINERS: Update Calxeda Highbank maintainership
  arm: dts: calxeda: Group port-phys and sgpio-gpio items
  arm: dts: calxeda: Fix interrupt grouping
  arm: dts: calxeda: Provide UART clock
  arm: dts: calxeda: Basic DT file fixes
  arm64: dts: specify console via command line
  ARM: dts: at91: sama5d27_wlsom1_ek: add USB device node
  ARM: dts: gemini: Add thermal zone to DIR-685
  ARM: dts: gemini: Rename IDE nodes
  ARM: socfpga: arria10: Add ptp_ref clock to ethernet nodes
  arm64: dts: ti: k3-j721e-mcu: add scm node and phy-gmii-sel nodes
  arm64: dts: ti: k3-am65-mcu: add phy-gmii-sel node
  arm64: dts: ti: k3-am65-mcu: Add DMA entries for ADC
  arm64: dts: ti: k3-am65-main: Add DMA entries for main_spi0
  arm64: dts: ti: k3-j721e-mcu-wakeup: Add DMA entries for ADC
  arm64: dts: ti: k3-am65: Add clocks to dwc3 nodes
  arm64: dts: meson-g12b-odroid-n2: add SPIFC controller node
  arm64: dts: khadas-vim3: add SPIFC controller node
  ...
2020-04-03 15:22:05 -07:00
Bjorn Helgaas
d09fca9ecd Merge branch 'remotes/lorenzo/pci/mobiveil'
- Restructure mobiveil driver to support either Root Complex mode or
    Endpoint mode (Hou Zhiqiang)

  - Collect host initialization into one place (Hou Zhiqiang)

  - Collect interrupt-related code into one place (Hou Zhiqiang)

  - Split mobiveil into separate files under
    drivers/pci/controller/mobiveil for easier reuse (Hou Zhiqiang)

  - Add callbacks for interrupt initialization and linkup checking (Hou
    Zhiqiang)

  - Add 8- and 16-bit CSR accessors (Hou Zhiqiang)

  - Initialize host driver only if Header Type is "bridge" (Hou Zhiqiang)

  - Add DT bindings for NXP Layerscape SoCs PCIe Gen4 controller (Hou
    Zhiqiang)

  - Add PCIe Gen4 RC driver for Layerscape SoCs (Hou Zhiqiang)

  - Add pcie-mobiveil __iomem annotations (Hou Zhiqiang)

  - Add PCI_MSI_IRQ_DOMAIN Kconfig dependency (Hou Zhiqiang)

* remotes/lorenzo/pci/mobiveil:
  PCI: mobiveil: Fix unmet dependency warning for PCIE_MOBIVEIL_PLAT
  PCI: mobiveil: Fix sparse different address space warnings
  PCI: mobiveil: Add PCIe Gen4 RC driver for Layerscape SoCs
  dt-bindings: PCI: Add NXP Layerscape SoCs PCIe Gen4 controller
  PCI: mobiveil: Add Header Type field check
  PCI: mobiveil: Add 8-bit and 16-bit CSR register accessors
  PCI: mobiveil: Allow mobiveil_host_init() to be used to re-init host
  PCI: mobiveil: Add callback function for link up check
  PCI: mobiveil: Add callback function for interrupt initialization
  PCI: mobiveil: Modularize the Mobiveil PCIe Host Bridge IP driver
  PCI: mobiveil: Collect the interrupt related operations into a function
  PCI: mobiveil: Move the host initialization into a function
  PCI: mobiveil: Introduce a new structure mobiveil_root_port
2020-04-02 14:27:01 -05:00
Bjorn Helgaas
b16f2ab280 Merge branch 'remotes/lorenzo/pci/endpoint'
- Use notification chain instead of EPF linkup ops for EPC events (Kishon
    Vijay Abraham I)

  - Protect concurrent allocation in endpoint outbound address region
    (Kishon Vijay Abraham I)

  - Protect concurrent access to pci_epf_ops (Kishon Vijay Abraham I)

  - Assign function number for each PF in endpoint core (Kishon Vijay
    Abraham I)

  - Refactor endpoint mode core initialization (Vidya Sagar)

  - Add API to notify when core initialization completes (Vidya Sagar)

  - Add test framework support to defer core initialization (Vidya Sagar)

  - Update Tegra SoC ABI header to support uninitialization of UPHY PLL
    when in endpoint mode without reference clock (Vidya Sagar)

  - Add DT and driver support for Tegra194 PCIe endpoint nodes (Vidya
    Sagar)

  - Add endpoint test support for DMA data transfer (Kishon Vijay
    Abraham I)

  - Print throughput information in endpoint test (Kishon Vijay Abraham I)

  - Use streaming DMA APIs for endpoint test buffer allocation (Kishon
    Vijay Abraham I)

  - Add endpoint test command line option for DMA (Kishon Vijay Abraham I)

  - When stopping a controller via configfs, clear endpoint "start" entry
    to prevent WARN_ON (Kunihiko Hayashi)

  - Update endpoint ->set_msix() to pay attention to MSI-X BAR Indicator
    and offset when finding MSI-X tables (Kishon Vijay Abraham I)

  - MSI-X tables are in local memory, not in the PCI address space.  Update
    pcie-designware-ep to account for this (Kishon Vijay Abraham I)

  - Allow AM654 PCIe Endpoint to raise MSI-X interrupts (Kishon Vijay
    Abraham I)

  - Avoid using module parameter to determine irqtype for endpoint test
    (Kishon Vijay Abraham I)

  - Add ioctl to clear IRQ for endpoint test (Kishon Vijay Abraham I)

  - Add endpoint test 'e' option to clear IRQ (Kishon Vijay Abraham I)

  - Bump limit on number of endpoint test devices from 10 to 10,000 (Kishon
    Vijay Abraham I)

  - Use full pci-endpoint-test name in request_irq() for easier profiling
    (Kishon Vijay Abraham I)

  - Reduce log level of -EPROBE_DEFER error messages to debug (Thierry
    Reding)

* remotes/lorenzo/pci/endpoint:
  misc: pci_endpoint_test: remove duplicate macro PCI_ENDPOINT_TEST_STATUS
  PCI: tegra: Print -EPROBE_DEFER error message at debug level
  misc: pci_endpoint_test: Use full pci-endpoint-test name in request_irq()
  misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devices
  tools: PCI: Add 'e' to clear IRQ
  misc: pci_endpoint_test: Add ioctl to clear IRQ
  misc: pci_endpoint_test: Avoid using module parameter to determine irqtype
  PCI: keystone: Allow AM654 PCIe Endpoint to raise MSI-X interrupt
  PCI: dwc: Fix dw_pcie_ep_raise_msix_irq() to get correct MSI-X table address
  PCI: endpoint: Fix ->set_msix() to take BIR and offset as arguments
  misc: pci_endpoint_test: Add support to get DMA option from userspace
  tools: PCI: Add 'd' command line option to support DMA
  misc: pci_endpoint_test: Use streaming DMA APIs for buffer allocation
  PCI: endpoint: functions/pci-epf-test: Print throughput information
  PCI: endpoint: functions/pci-epf-test: Add DMA support to transfer data
  PCI: endpoint: Fix clearing start entry in configfs
  PCI: tegra: Add support for PCIe endpoint mode in Tegra194
  dt-bindings: PCI: tegra: Add DT support for PCIe EP nodes in Tegra194
  soc/tegra: bpmp: Update ABI header
  PCI: pci-epf-test: Add support to defer core initialization
  PCI: dwc: Add API to notify core initialization completion
  PCI: endpoint: Add notification for core init completion
  PCI: dwc: Refactor core initialization code for EP mode
  PCI: endpoint: Add core init notifying feature
  PCI: endpoint: Assign function number for each PF in EPC core
  PCI: endpoint: Protect concurrent access to pci_epf_ops with mutex
  PCI: endpoint: Fix for concurrent memory allocation in OB address region
  PCI: endpoint: Replace spinlock with mutex
  PCI: endpoint: Use notification chain mechanism to notify EPC events to EPF
2020-04-02 14:26:57 -05:00
Bjorn Helgaas
86d0b6a131 Merge branch 'remotes/lorenzo/pci/dt'
- Add common schema for PCI endpoint controllers (Kishon Vijay Abraham I)

  - Add host and endpoint schemas for Cadence PCIe core (Kishon Vijay
    Abraham I)

  - Convert Cadence platform bindings to DT schema (Kishon Vijay Abraham I)

* remotes/lorenzo/pci/dt:
  dt-bindings: PCI: Convert PCIe Host/Endpoint in Cadence platform to DT schema
  dt-bindings: PCI: cadence: Add PCIe RC/EP DT schema for Cadence PCIe
  dt-bindings: PCI: Add PCI Endpoint Controller Schema
2020-04-02 14:26:50 -05:00
Kishon Vijay Abraham I
11be8af70d dt-bindings: PCI: Convert PCIe Host/Endpoint in Cadence platform to DT schema
Include Cadence core DT schema and define the Cadence platform DT schema
for both Host and Endpoint mode. Note: The Cadence core DT schema could
be included for other platforms using Cadence PCIe core.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-03-20 09:55:21 +00:00
Kishon Vijay Abraham I
69501078fc dt-bindings: PCI: cadence: Add PCIe RC/EP DT schema for Cadence PCIe
Add PCIe Host (RC) and Endpoint (EP) device tree schema for Cadence
PCIe core library. Platforms using Cadence PCIe core can include the
schemas added here in the platform specific schemas.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-03-20 09:55:14 +00:00
Kishon Vijay Abraham I
847dbf4e1a dt-bindings: PCI: Add PCI Endpoint Controller Schema
Define a common schema for PCI Endpoint Controllers.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2020-03-20 09:55:02 +00:00
Jon Hunter
f9f711efd4 arm64: tegra: Fix Tegra194 PCIe compatible string
If the kernel configuration option CONFIG_PCIE_DW_PLAT_HOST is enabled
then this can cause the kernel to incorrectly probe the generic
designware PCIe platform driver instead of the Tegra194 designware PCIe
driver. This causes a boot failure on Tegra194 because the necessary
configuration to access the hardware is not performed.

The order in which the compatible strings are populated in Device-Tree
is not relevant in this case, because the kernel will attempt to probe
the device as soon as a driver is loaded and if the generic designware
PCIe driver is loaded first, then this driver will be probed first.
Therefore, to fix this problem, remove the "snps,dw-pcie" string from
the compatible string as we never want this driver to be probe on
Tegra194.

Fixes: 2602c32f15 ("arm64: tegra: Add P2U and PCIe controller nodes to Tegra194 DT")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-03-12 12:14:25 +01:00
Vidya Sagar
9f04d18b1e dt-bindings: PCI: tegra: Add DT support for PCIe EP nodes in Tegra194
Add support for PCIe controllers that can operate in endpoint mode
in Tegra194.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Thierry Reding <treding@nvidia.com>
2020-03-11 10:20:35 +00:00