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: 13785471 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 73606CA0FE8 for ; Fri, 30 Aug 2024 19:28:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To: Content-Transfer-Encoding:Content-Type:MIME-Version:Message-Id:Date:Subject: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=IaJ12kEVkAP9BivJETPa4R8vmGBgG7gyPCsMU2m/MtE=; b=jr/RI1PsuZH/83 gx2qEsTOzlIn5gAY2+7lGUPBPOIrfa+wqejWniZUsNsQZvVSEYYVEL93suoSHGg2OU30PX/SUmvXy 153bv9P/dqlDuOuR/xeAVUi3rZj3Kk2raPoevQ2PuQVRB4agmnLlwa8PQEaUYiBwtfvE9l6ixAGag +3cFqfML9i2asNS3qsFyvaOZ4j44cL9kjrMDnwiK1NC7O4t74jlo8hT5/SEaYPx0aU4wnDEHGgUjV XdMiYc0XdQqo4WvU0kFFlXxhreassq/2pZx3uoYtHGACfjgFt1yxg6Imx6FDxnKdfVBuJ5BsPrBBI nwabb1tzfzeCArnolnvA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sk7Hl-00000007RsJ-2nst; Fri, 30 Aug 2024 19:27:53 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sk7Gn-00000007RLZ-2bJU for linux-arm-kernel@lists.infradead.org; Fri, 30 Aug 2024 19:26:55 +0000 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 1sk7Gi-00063i-Qa for linux-arm-kernel@lists.infradead.org; Fri, 30 Aug 2024 21:26:48 +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 1sk7Gi-004DbT-75 for linux-arm-kernel@lists.infradead.org; Fri, 30 Aug 2024 21:26:48 +0200 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id CD82932E121 for ; Fri, 30 Aug 2024 19:26:47 +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> 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: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240830_122653_668240_B748238F X-CRM114-Status: GOOD ( 14.86 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=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 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,