From patchwork Mon Feb 17 10:52:01 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thierry Bultel X-Patchwork-Id: 13977578 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 77F6117E45B for ; Mon, 17 Feb 2025 10:59:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739789964; cv=none; b=PKjcpr5Nym32kPmnkokojIsU7Cw31e325pLDX95nh32D5rNVXyRjAfwoy6FLxTiLZnbPSqn5SK0wxaQBIYwTzr8Gq3NP/Pe8SMNiAfPDkeBB3eYnFrE3AZpjLdy6lx3imii/SeSBhBFdrich4yB1Rd6int1iYO1uk3HKtVv07wo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739789964; c=relaxed/simple; bh=d3kddO+ZoGxcp99Q5c/gVHjB3jxBcACEunLFJetinIQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Qb6GOMaH0wRyFwkK0cCJOJDYn2P6drIjPrcgDBlMXl+nwO5vrQE18YVpztZ48uhnqihWcbM0b/wYt/rIOErd0v+Chl2mX9IGZueVJ4Il4IwdIwgcGbN4WRTCjvqJc5vErIcEjAS8oJe2VfPAlut2uQZdpQ1RRbuv0/U7wQ8djHc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-CSE-ConnectionGUID: 3/EtgC6SQQ6jTvOwAhxX7A== X-CSE-MsgGUID: wmvSR02HS5+5jqYjRE68qA== Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 17 Feb 2025 19:54:13 +0900 Received: from superbuilder.administration.lan (unknown [10.226.93.254]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id AADE04280557; Mon, 17 Feb 2025 19:54:11 +0900 (JST) From: Thierry Bultel To: thierry.bultel@linatsea.fr, Geert Uytterhoeven , Magnus Damm Cc: linux-renesas-soc@vger.kernel.org, Thierry Bultel Subject: [PATCH v2 00/13] add initial support for Renesas RZ/T2H SoC Date: Mon, 17 Feb 2025 11:52:01 +0100 Message-ID: <20250217105354.551788-1-thierry.bultel.yh@bp.renesas.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This patchset brings basic support for Renesas RZ/T2H SoC and its evaluation board. The 4 CPUs are enabled, only the serial console is available and the board must boot on a ramdisk. earlycon is supported, though. The RZ/T2H serial controller (SCI) is quite different from the other RZ SoCs, one of the big differences (but not the only) being the 32 bits registers. In order to not modify the existing sh-sci driver too much, a new set of 'ops' function pointer is introduced, alllowing to code the specifics of RZ/T2H in a separate file. Termios setting is not supported yet, the default 115200 baudrate being kept by default. Clock support for RZ/T2H is added to the existing renesas-cpg-mssr driver, with some little modifications so that more paremeters are passed to the device-speicif registration callback. At this stage, the assumption is made that most of the initialization is done earlier by the bootloader. Module clock enable/disable is not supported, because quite hard to test when the only available peripheral is the serial console, and will come in a future patchset. Changes v1->v2 * CPG based on renesas-cpg-mssr (no more new CPG driver), updated cover letter for that. * bindings: - passed dt_binding_check and added missing comppatible strings, - document SoC + evaluation board in a single commit - rzsci added to sci documentation - fixed dependencies - renamed the evaluation board to r9a9g077m44-rzt2h-evk - removed clock module numbers & resets from binding header * rz/sci: - fixed rzsci_receive_chars following Geert's advice, and comment that 9-bits data is not supported - fixed the regression (ops init) on non-DT legacy boards, sci_probe_regmap called moved in the non-DT case. - moved struct sci_of_data introduction in the appropriate commit * dts - applied conventions (nodes alphabetical order & node names) - added missing compatibles to r9a09g077m44.dtsi and r9a09g077m44-rzt2h-evk.dts Thierry Bultel (13): dt-bindings: soc: Add Renesas RZ/T2H (R9A09G077) SoC dt-bindings: clock: Add cpg for the Renesas RZ/T2H SoC dt-bindings: serial: Add compatible for Renesas RZ/T2H SoC in sci soc: renesas: Add RZ/T2H (R9A09G077) config option clk: renesas: Pass sub struct of cpg_mssr_priv to cpg_clk_register clk: renesas: Add support for R9A09G077 SoC serial: sh-sci: Fix a comment about SCIFA serial: sh-sci: Introduced function pointers serial: sh-sci: Introduced sci_of_data serial: sh-sci: Add support for RZ/T2H SCI arm64: dts: renesas: Add initial support for renesas RZ/T2H SoC arm64: dts: renesas: Add initial support for renesas RZ/T2H eval board defconfig: Enable RZ/T2H Soc and RZ_SCI .../bindings/clock/renesas,cpg-mssr.yaml | 1 + .../bindings/serial/renesas,sci.yaml | 2 + .../bindings/soc/renesas/renesas.yaml | 10 + arch/arm64/boot/dts/renesas/Makefile | 1 + arch/arm64/boot/dts/renesas/r9a09g077.dtsi | 129 +++++ .../dts/renesas/r9a09g077m44-rzt2h-evk.dts | 35 ++ arch/arm64/boot/dts/renesas/r9a09g077m44.dtsi | 13 + arch/arm64/configs/defconfig | 2 + drivers/clk/renesas/Kconfig | 5 + drivers/clk/renesas/Makefile | 1 + drivers/clk/renesas/r7s9210-cpg-mssr.c | 7 +- drivers/clk/renesas/r8a77970-cpg-mssr.c | 11 +- drivers/clk/renesas/r9a09g077-cpg-mssr.c | 237 +++++++++ drivers/clk/renesas/rcar-gen3-cpg.c | 8 +- drivers/clk/renesas/rcar-gen3-cpg.h | 6 +- drivers/clk/renesas/rcar-gen4-cpg.c | 9 +- drivers/clk/renesas/rcar-gen4-cpg.h | 3 +- drivers/clk/renesas/renesas-cpg-mssr.c | 139 +++-- drivers/clk/renesas/renesas-cpg-mssr.h | 44 +- drivers/soc/renesas/Kconfig | 5 + drivers/tty/serial/Kconfig | 7 + drivers/tty/serial/Makefile | 1 + drivers/tty/serial/rzsci.c | 485 ++++++++++++++++++ drivers/tty/serial/rzsci.h | 12 + drivers/tty/serial/sh-sci.c | 415 ++++++++------- drivers/tty/serial/sh-sci_common.h | 180 +++++++ .../dt-bindings/clock/r9a09g077-cpg-mssr.h | 49 ++ include/linux/serial_sci.h | 3 +- include/uapi/linux/serial_core.h | 3 + 29 files changed, 1555 insertions(+), 268 deletions(-) create mode 100644 arch/arm64/boot/dts/renesas/r9a09g077.dtsi create mode 100644 arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts create mode 100644 arch/arm64/boot/dts/renesas/r9a09g077m44.dtsi create mode 100644 drivers/clk/renesas/r9a09g077-cpg-mssr.c create mode 100644 drivers/tty/serial/rzsci.c create mode 100644 drivers/tty/serial/rzsci.h create mode 100644 drivers/tty/serial/sh-sci_common.h create mode 100644 include/dt-bindings/clock/r9a09g077-cpg-mssr.h