From patchwork Thu May 18 18:45:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 683497 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 310ACC7EE23 for ; Thu, 18 May 2023 18:56:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229518AbjERS4y (ORCPT ); Thu, 18 May 2023 14:56:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229501AbjERS4x (ORCPT ); Thu, 18 May 2023 14:56:53 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D03BE130; Thu, 18 May 2023 11:56:52 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 6290761B56; Thu, 18 May 2023 18:56:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00FA5C433D2; Thu, 18 May 2023 18:56:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1684436211; bh=MdvnMPPrQ/vtDiMGVDWtOIyHdjO99rGYjST9u7UGOX0=; h=From:To:Cc:Subject:Date:From; b=PcXlB8MZgZ4xhZB32EeIs8927VsmYw+q0bfWMgLbrj6uSBAHsdfw6MoVaJWzn1A8o ZOoB0DKH6M/e+KPgvbEMURCrSvm7CMaUlgnTNGkqstz+FtWH2LlrxVZDQmxMwFWoNy s8s67LacTxXK+WkLvLSb6kA//lWr2wjdxT/H5ITARbhWtq3a5LWgNGV/asS/IL6Y7n umcG0apV8J3wPxvQ5EKvmxurUj/CiGIllSJQNzvxZSU1NkiSKCKJokcoUoE1nuVjGM BTi2xIqNZJx6tstME5f/2g992abZS9aHQ+xseKv425eaYPHH11vFnMbHN6apO2w7wN +zA2zGa/xa+Ew== From: Jisheng Zhang To: Thomas Gleixner , Marc Zyngier , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Palmer Dabbelt , Paul Walmsley , Albert Ou , Guo Ren Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, Yangtao Li , Wei Fu , Icenowy Zheng Subject: [PATCH v2 0/9] Add Sipeed Lichee Pi 4A RISC-V board support Date: Fri, 19 May 2023 02:45:32 +0800 Message-Id: <20230518184541.2627-1-jszhang@kernel.org> X-Mailer: git-send-email 2.40.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Sipeed's Lichee Pi 4A development board uses Lichee Module 4A core module which is powered by T-HEAD's TH1520 SoC. Add minimal device tree files for the core module and the development board. Support basic uart/gpio/dmac drivers, so supports booting to a basic shell. FWICT, one issue I'm not sure is the cpu reset dt-binding: IIUC, the secondary CPUs in T-HEAD SMP capable platforms need some special handling. The first one is to write the warm reset entry to entry register. The second one is write a SoC specific control value to a SoC specific control reg. The last one is to clone some CSRs for secondary CPUs to ensure these CSRs' values are the same as the main boot CPU. This DT node is mainly used by opensbi firmware. Any suggestion about this reset dt-binding is appreciated! Thanks Since v1: - add missing plic, clint, th1520 itself dt-bindings - use c900-plic - s/light/th1520 - add dt-binding for T-HEAD CPU reset - enable ARCH_THEAD in defconfig - fix all dtbs_check error/warning except the CPU RESET, see above. Jisheng Zhang (9): dt-bindings: interrupt-controller: Add T-HEAD's TH1520 PLIC dt-bindings: timer: Add T-HEAD TH1520 clint dt-bindings: riscv: Add T-HEAD TH1520 board compatibles dt-binding: riscv: add T-HEAD CPU reset riscv: Add the T-HEAD SoC family Kconfig option riscv: dts: add initial T-HEAD TH1520 SoC device tree riscv: dts: thead: add sipeed Lichee Pi 4A board device tree MAINTAINERS: add entry for T-HEAD RISC-V SoC riscv: defconfig: enable T-HEAD SoC .../sifive,plic-1.0.0.yaml | 1 + .../bindings/riscv/thead,cpu-reset.yaml | 69 +++ .../devicetree/bindings/riscv/thead.yaml | 29 ++ .../bindings/timer/sifive,clint.yaml | 1 + MAINTAINERS | 6 + arch/riscv/Kconfig.socs | 6 + arch/riscv/boot/dts/Makefile | 1 + arch/riscv/boot/dts/thead/Makefile | 2 + .../dts/thead/th1520-lichee-module-4a.dtsi | 38 ++ .../boot/dts/thead/th1520-lichee-pi-4a.dts | 32 ++ arch/riscv/boot/dts/thead/th1520.dtsi | 451 ++++++++++++++++++ arch/riscv/configs/defconfig | 1 + 12 files changed, 637 insertions(+) create mode 100644 Documentation/devicetree/bindings/riscv/thead,cpu-reset.yaml create mode 100644 Documentation/devicetree/bindings/riscv/thead.yaml create mode 100644 arch/riscv/boot/dts/thead/Makefile create mode 100644 arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi create mode 100644 arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts create mode 100644 arch/riscv/boot/dts/thead/th1520.dtsi