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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Philipp Zabel , Elaine Zhang , David Jander Cc: Simon Horman , linux-can@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Marc Kleine-Budde , David Jander X-Mailer: b4 0.15-dev-99b12 X-Developer-Signature: v=1; a=openpgp-sha256; l=4377; i=mkl@pengutronix.de; h=from:subject:message-id; bh=kCuY8MmnnW/PQL7ZyUIX6fk5iss9vki4yIQzIHMYVkU=; b=owEBbQGS/pANAwAKASg4oj56LbxvAcsmYgBm1tUzxqM199Jmoc5+mT7otuf8c+jG/+jRDYIdQ prxAiNc/AyJATMEAAEKAB0WIQRQQLqG4LYE3Sm8Pl8oOKI+ei28bwUCZtbVMwAKCRAoOKI+ei28 bxxKB/9NlP5geWnExhqi7KHf7xoEZmXOewmnlDhsfH1sWlDoVPOBJwtk9iQwDcRmGIAstFT/IAT rIA+IDVLUh4J6RA2jc1fEvHbyk7YDnNIADZH+57uU/cksBBumdQos0yhG3+c60oSPNLW/WZBN5V hKyb+sdPZ2PnZUDp74qEaxWs4LaYv+ETO7L/ivQpaoqEi1+Kq3qhp015RGSqi0mBUi6ye69ZUtD o4Jo+vil4cBOJr2Y+xq5g22XWf5lEchrx+jGBIYTZ9CdhgYjlFy1n0pJVJmSRZf+aJmMlPQ1xsB yiN4NAH7AH4Pls+FCmY6UMc8bqD53K6XxXbYcqTZuHO7G6hP X-Developer-Key: i=mkl@pengutronix.de; a=openpgp; fpr=C1400BA0B3989E6FBC7D5B5C2B5EE211C58AEA54 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-rockchip@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240903_102242_614584_40E1870C X-CRM114-Status: GOOD ( 15.01 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org This series adds support for the CAN-FD IP core found on the Rockchip RK3568. The IP core is a bit complicated and has several documented errata. The driver is added in several stages, first the base driver including the RX-path. Then several workarounds for errata and the TX-path, and finally features like hardware time stamping, loop-back mode and bus error reporting. regards, Marc Signed-off-by: Marc Kleine-Budde --- Changes in v4: - dt-bindings: renamed to rockchip,rk3568v2-canfd.yaml to match the first compatible - dt-bindings: fix "$id" in yaml (thanks Rob's bot) - all: add Tested-by: Alibek Omarov - Link to v3: https://patch.msgid.link/20240830-rockchip-canfd-v3-0-d426266453fa@pengutronix.de Changes in v3: - dt-bindings: renamed file to rockchip,rk3568-canfd.yaml (thanks Rob) - dt-bindings: reworked compatibles (thanks Rob) - Link to v2: https://lore.kernel.org/all/20240731-rockchip-canfd-v2-0-d9604c5b4be8@pengutronix.de Changes in v2: - dt-bindings: remove redundant words from subject and patch description (thanks Rob) - dt-bindings: clean up clock- and reset-names (thanks Rob) - base driver: add missing bitfield.h header - base driver: rkcanfd_handle_rx_int_one(): initialize header to avoid uninitialzied variable warning on m68k - base driver: rkcanfd_get_berr_counter_raw(): don't add assigned only variable (bec_raw), move to 14/20 (thanks Simon) - CAN-FD frame equal check + TX-path: squash, to avoid unused functions (thanks Simon) - TX-path: rkcanfd_handle_tx_done_one(): don't add assigned only variable (skb), move to 18/20 (thanks Simon) - HW-timetamping: add missing timecounter.h header (thanks Simon) - Link to v1: https://lore.kernel.org/all/20240729-rockchip-canfd-v1-0-fa1250fd6be3@pengutronix.de --- David Jander (2): arm64: dts: rockchip: add CAN-FD controller nodes to rk3568 arm64: dts: rockchip: mecsbc: add CAN0 and CAN1 interfaces Marc Kleine-Budde (18): dt-bindings: can: rockchip_canfd: add rockchip CAN-FD controller can: rockchip_canfd: add driver for Rockchip CAN-FD controller can: rockchip_canfd: add quirks for errata workarounds can: rockchip_canfd: add quirk for broken CAN-FD support can: rockchip_canfd: add support for rk3568v3 can: rockchip_canfd: add notes about known issues can: rockchip_canfd: rkcanfd_handle_rx_int_one(): implement workaround for erratum 5: check for empty FIFO can: rockchip_canfd: rkcanfd_register_done(): add warning for erratum 5 can: rockchip_canfd: add TX PATH can: rockchip_canfd: implement workaround for erratum 6 can: rockchip_canfd: implement workaround for erratum 12 can: rockchip_canfd: rkcanfd_get_berr_counter_corrected(): work around broken {RX,TX}ERRORCNT register can: rockchip_canfd: add stats support for errata workarounds can: rockchip_canfd: prepare to use full TX-FIFO depth can: rockchip_canfd: enable full TX-FIFO depth of 2 can: rockchip_canfd: add hardware timestamping support can: rockchip_canfd: add support for CAN_CTRLMODE_LOOPBACK can: rockchip_canfd: add support for CAN_CTRLMODE_BERR_REPORTING .../bindings/net/can/rockchip,rk3568v2-canfd.yaml | 74 ++ MAINTAINERS | 8 + arch/arm64/boot/dts/rockchip/rk3568-mecsbc.dts | 14 + arch/arm64/boot/dts/rockchip/rk3568.dtsi | 39 + drivers/net/can/Kconfig | 1 + drivers/net/can/Makefile | 1 + drivers/net/can/rockchip/Kconfig | 9 + drivers/net/can/rockchip/Makefile | 10 + drivers/net/can/rockchip/rockchip_canfd-core.c | 969 +++++++++++++++++++++ drivers/net/can/rockchip/rockchip_canfd-ethtool.c | 73 ++ drivers/net/can/rockchip/rockchip_canfd-rx.c | 299 +++++++ .../net/can/rockchip/rockchip_canfd-timestamp.c | 105 +++ drivers/net/can/rockchip/rockchip_canfd-tx.c | 167 ++++ drivers/net/can/rockchip/rockchip_canfd.h | 553 ++++++++++++ 14 files changed, 2322 insertions(+) --- base-commit: da4f3b72c8831975a06eca7e1c27392726f54d20 change-id: 20240729-rockchip-canfd-4233c71f0cc6 Best regards,