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Add syscon properties required for configuring PCIe in x2 lane mode.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
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Add new compatible strings for dra74x SoC (also used by dra76x) and
dra72x. This can be used to perform SoC specific configuration
(like configuring PCIe in x2 lane mode).
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
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Update device tree binding documentation of TI's dra7xx PCI controller
for enabling unaligned mem access as applicable not just in EP mode but
in host mode as well.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
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Fix various typos and whitespace errors:
s/Synopsis/Synopsys/
s/Designware/DesignWare/
s/Keystine/Keystone/
s/gpio/GPIO/
s/pcie/PCIe/
s/phy/PHY/
s/confgiruation/configuration/
No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Update device tree binding documentation of TI's dra7xx PCI controller to
include property for enabling unaligned mem access.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Add device tree binding documentation for PCI dra7xx EP mode.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The PERST# line in am57x-evm is connected to a GPIO line and PERST# should
be driven high to indicate the clocks are stable (As per Figure 2-10: Power
Up of the PCIe CEM spec 3.0).
Add support to make GPIO drive PERST# line.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Add support for PCIe controller in DRA7xx. This driver re-uses the
designware core code that is already present in kernel.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Cc: Rob Herring <robh+dt@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>
Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Mohit Kumar <mohit.kumar@st.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Arnd Bergmann <arnd@arndb.de>
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Kishon Vijay Abraham I
Vignesh R
Bjorn Helgaas