From patchwork Fri Aug 30 19:25:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Kleine-Budde X-Patchwork-Id: 13785446 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6E06F1BDAB1 for ; Fri, 30 Aug 2024 19:26:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725046019; cv=none; b=T4Dv9KqUChdRY1HF7chCilKA0JA0A8tj25PbGlE5fC/Ak78f2O88EvyxgH2eU+/EQ44S2xm33HLZ5oXdMwIBz7kg8jXWdMHCQV0iKFT3Bb/JFaSZWoBc5RXF6JMxsS79ntlGYS7nJottoFmJVhs10wTRjjgf3CU7OVYoYcUGbw8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725046019; c=relaxed/simple; bh=H+PYOR8/pV6bhxws++RaYVUTR55YYubqw7tU6wNDWQM=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=Ocl6fzKDXssy61mN+7OIHSWxWCv2dJT84CxVw9k9LT7mprkkSWEJhliSHXrA7Uyu/mwZp21hPfS5BvnD+4CHg6ZTZNRFsHSMBtU8e2Nr1K8fFpvo72sVuXMv6VFRAaiVEFT6CfkRwqLdLdMlGZwivHj7oI5weq75arZV60k0o14= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1sk7Go-00069L-LY for netdev@vger.kernel.org; Fri, 30 Aug 2024 21:26:54 +0200 Received: from [2a0a:edc0:0:b01:1d::7b] (helo=bjornoya.blackshift.org) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1sk7Gl-004DfG-CI for netdev@vger.kernel.org; Fri, 30 Aug 2024 21:26:51 +0200 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id 04CBC32E162 for ; Fri, 30 Aug 2024 19:26:50 +0000 (UTC) Received: from hardanger.blackshift.org (unknown [172.20.34.65]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by bjornoya.blackshift.org (Postfix) with ESMTPS id D41AF32E0ED; Fri, 30 Aug 2024 19:26:45 +0000 (UTC) Received: from [172.20.34.65] (localhost [::1]) by hardanger.blackshift.org (OpenSMTPD) with ESMTP id 3f107de8; Fri, 30 Aug 2024 19:26:45 +0000 (UTC) From: Marc Kleine-Budde Subject: [PATCH can-next v3 00/20] can: rockchip_canfd: add support for CAN-FD IP core found on Rockchip RK3568 Date: Fri, 30 Aug 2024 21:25:57 +0200 Message-Id: <20240830-rockchip-canfd-v3-0-d426266453fa@pengutronix.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAMYc0mYC/3XNTQqDMBAF4KvIrJuSP7XtqvcoXWgy0aEQJbHBI t69IauCdPl4877ZIGIgjHCrNgiYKNLkc1CnCszY+QEZ2ZxBcql5K68sTOZlRpqZ6byzTEulTCs cN6aBPJoDOloL+IB8wjyuCzxzM1JcpvApn5Io/T80CcaZ64SsubNNj+o+ox/eS5g8rWeLxUvyx 1DiYMhs2GvDtal73ePlYOz7/gVt4Rve/wAAAA== To: kernel@pengutronix.de, Vincent Mailhol , "David S. 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=4059; i=mkl@pengutronix.de; h=from:subject:message-id; bh=H+PYOR8/pV6bhxws++RaYVUTR55YYubqw7tU6wNDWQM=; b=owEBbQGS/pANAwAKASg4oj56LbxvAcsmYgBm0hzVl2FusVAXajEAut0yssqC7y0Gu1zy4gIQO J7dkX4BM+uJATMEAAEKAB0WIQRQQLqG4LYE3Sm8Pl8oOKI+ei28bwUCZtIc1QAKCRAoOKI+ei28 b4nFB/oDFFbNrBZNRWM68rKM9Dx6p3rXrYlTHGVFsb04k4tFOiUc0LHTcbv8PlA31BKSPfRi5xX r77ZZJ0JmW9OB3U3spouu31qQ0gMg9TwOkdHB8+YKJ9k3Uf36nxaSzCFWmka636qRENwZNhMKI8 hk/1rb/9leFMzD2zHTaAsDI2C8ZJ6E58A3yh2+H6vZgLjYuI7nc1n2GZcjcvZtRg0usiconKlLA XCm3+y+6vjPk2KpKiN8YlLungWVA9otU9ygnSxYEl/gA8S5I0Q9P4oTYdFOFtRl6aOFkVeG1p+u kLSXuwmQnoELPsixa3/z+O7X9wP6nK8Jo6kthCn3hDC9JXBR 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: netdev@vger.kernel.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 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,rk3568-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: cff69f72d33318f4ccfe7d5ff6c5616d00dd45a7 change-id: 20240729-rockchip-canfd-4233c71f0cc6 Best regards,