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2021-05-27dt-bindings: can: rcar_canfd: Convert to json-schemaGeert Uytterhoeven
Convert the Renesas R-Car CAN FD Controller Device Tree binding documentation to json-schema. Document missing properties. The CANFD clock needs to be configured for the maximum frequency on R-Car V3M and V3H, too. Update the example to match reality. Link: https://lore.kernel.org/r/905134c87f72e2d8e37c309e0ce28ecd7d4f3992.1620323639.git.geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-02-09dt-bindings: can: rcar_canfd: Group tuples in pin control propertiesGeert Uytterhoeven
To improve human readability and enable automatic validation, the tuples in "pinctrl-*" properties should be grouped using angle brackets. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Link: https://lore.kernel.org/r/20210204125937.1646305-1-geert+renesas@glider.be Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-07dt-bindings: can: rcar_canfd: Document r8a774e1 supportLad Prabhakar
Document the support for rcar_canfd on R8A774E1 SoC devices. 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> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201005081319.29322-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-12-20dt-bindings: can: rcar_canfd: document r8a774b1 supportFabrizio Castro
Document the support for rcar_canfd on R8A774B1 SoC devices. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/1570717560-7431-3-git-send-email-fabrizio.castro@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-08-23dt-bindings: can: rcar_canfd: document r8a77995 supportUlrich Hecht
Adds compatible strings for the R-Car CAN FD controller in the D3 SoC. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-07-29dt-bindings: can: rcar_canfd: document r8a774a1 supportFabrizio Castro
Document the support for rcar_canfd on R8A774A1 SoC devices. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-06-17dt-bindings: can: rcar_canfd: document r8a774c0 supportFabrizio Castro
Document the support for rcar_canfd on R8A774C0 SoC devices. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-17dt-bindings: can: rcar_canfd: document r8a77990 supportMarek Vasut
Document the support for rcar_canfd on R8A77990 SoC devices. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-17dt-bindings: can: rcar_canfd: document r8a77965 supportMarek Vasut
Document the support for rcar_canfd on R8A77965 SoC devices. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-05-08DT: net: can: rcar_canfd: document R8A77980 bindingsSergei Shtylyov
Document the R-Car V3H (R8A77980) SoC support in the R-Car CAN-FD bindings. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-05-08DT: net: can: rcar_canfd: document R8A77970 bindingsSergei Shtylyov
Document the R-Car V3M (R8A77970) SoC support in the R-Car CAN-FD bindings. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-05-08dt-bindings: can: rcar_can: Fix R8A7796 SoC nameGeert Uytterhoeven
R8A7796 is R-Car M3-W. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2016-12-01can: rcar_canfd: Correct order of interrupt specifiersGeert Uytterhoeven
According to both DTS (example and actual files), and Linux driver code, the first interrupt specifier should be the Channel interrupt, while the second interrupt specifier should be the Global interrupt. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2016-12-01can: rcar_canfd: Add r8a7796 supportChris Paterson
Signed-off-by: Chris Paterson <chris.paterson2@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2016-06-23can: rcar_canfd: Add Classical CAN only mode supportRamesh Shanmugasundaram
The controller can operate in one of the two global modes - CAN FD only mode (default) - Classical CAN (CAN2.0) only mode This patch adds support for Classical CAN only mode. It can be enabled by defining the optional device tree property "renesas,no-can-fd" of this node. Note: R-Car Gen3 h/w manual v0.51E shows bit6 of RSCFDnCFDGCFG as reserved, which is incorrect. This bit is same as RSCFDnGCFG. Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2016-06-17can: rcar_canfd: Add Renesas R-Car CAN FD driverRamesh Shanmugasundaram
This patch adds support for the CAN FD controller found in Renesas R-Car SoCs. The controller operates in CAN FD only mode by default. CAN FD mode supports both Classical CAN & CAN FD frame formats. The controller supports ISO 11898-1:2015 CAN FD format only. This controller supports two channels and the driver can enable either or both of the channels. Driver uses Rx FIFOs (one per channel) for reception & Common FIFOs (one per channel) for transmission. Rx filter rules are configured to the minimum (one per channel) and it accepts Standard, Extended, Data & Remote Frame combinations. Note: There are few documentation errors in R-Car Gen3 Hardware User Manual v0.5E with respect to CAN FD controller. They are listed below: 1. CAN FD interrupt numbers 29 & 30 are listed as per channel interrupts. However, they are common to both channels (i.e.) they are global and channel interrupts respectively. 2. CANFD clock is derived from PLL1. This is not documented. 3. CANFD clock is further divided by (1/2) within the CAN FD controller. This is not documented. 4. The minimum value of NTSEG1 in RSCFDnCFDCmNCFG register is 2 Tq. It is specified 4 Tq in the manual. 5. The maximum number of message RAM area the controller can use is 3584 bytes. It is specified 10752 bytes in the manual. Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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