From patchwork Tue Dec 8 07:33:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 340612 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F66DC2BBCD for ; Tue, 8 Dec 2020 07:36:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4CB5723A7E for ; Tue, 8 Dec 2020 07:36:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727459AbgLHHg3 (ORCPT ); Tue, 8 Dec 2020 02:36:29 -0500 Received: from esa6.hgst.iphmx.com ([216.71.154.45]:58664 "EHLO esa6.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726299AbgLHHg3 (ORCPT ); Tue, 8 Dec 2020 02:36:29 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1607412989; x=1638948989; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=S1YmWmqvdIYXxQKwYnEAtpW95Vpx9w6kjXteMcQR5RY=; b=HyzveYRo+wqJ6cquI0OV1GE6gNw3X18YBxTm5MpsTZus/0Tx4AxuRfP0 uvR+hTdG9sSwADJ6EUYnFw2oqJRbIFLWxYpXsnCjxfof/KPl9CBNceWQV utKOQfEphZir9jJmtgiVyuUs9AIZFHlGCy8w6PH2nmA6VWm7/EwPu99OS dtyqvjlPyGv+QUqXBlglN6KbjqvgZYdpDrEzm1VYEVYjFcB8haOGG9U5T tt1o1e0N3bmnv+XEvyK9PqxQTmQr4R9RpDVnELCK15LRvUExkUzYWcQf0 1/oh7Mnm3t2VhuChJh5cNtn4srJKEbhA0or2LneQS5F8y2PwPsNAr2X4n g==; IronPort-SDR: OSDb0RreCx+aAMKjbaI+UZKYiD2Xczr6n/DtL8QXoqedi/HKtkvDTC3Pk+f/EC87gDuVAiHyzX J6Duy0o7UEA5J4knY1k4ZjVpdN5bf/80pGrGDAgBeXsdugZaTT1gyoba4cHm2SMZded3m/MrVH pBzswJz3oFMUti/5vW4Ft+BDFG4JV/Vmi47UsLBdI6doe4K2ibFT169V8mu55T0Z+smZqKDB5h 39Xsz15zjJNiT0LcP0G/I0V+xe4uX8Nb2jCdgXnwrKpMsOuM92c7Kyootrux/S9SbpSPWK1egs 4ng= X-IronPort-AV: E=Sophos;i="5.78,401,1599494400"; d="scan'208";a="155876653" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 08 Dec 2020 15:34:17 +0800 IronPort-SDR: 0LvF+6A5QxVsEgK1PklqCLjpaAJ9dVcvFQS6HnXKkS2bkADRgCuSGtqbGwrKDNp0rSxhhgeiEp ijp4LWqWS302J5Gw1CTOuP/9aRH7DR9g0= Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Dec 2020 23:18:17 -0800 IronPort-SDR: RQD7EKANzywJV/HRg1j1X3bS3mlOI+gGU7eygNLNiakd8330VcLccRz8OKJQYvmBK8JyAnwEls Yb6KPydp+Iag== WDCIronportException: Internal Received: from wdapacbjl0003.my.asia.wdc.com (HELO twashi.fujisawa.hgst.com) ([10.84.71.173]) by uls-op-cesaip02.wdc.com with ESMTP; 07 Dec 2020 23:34:15 -0800 From: Damien Le Moal To: Palmer Dabbelt , linux-riscv@lists.infradead.org, Rob Herring , devicetree@vger.kernel.org, Stephen Boyd , linux-clk@vger.kernel.org, Linus Walleij , linux-gpio@vger.kernel.org, Philipp Zabel Cc: Sean Anderson Subject: [PATCH v5 08/21] dt-bindings: reset: Document canaan, k210-rst bindings Date: Tue, 8 Dec 2020 16:33:42 +0900 Message-Id: <20201208073355.40828-9-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201208073355.40828-1-damien.lemoal@wdc.com> References: <20201208073355.40828-1-damien.lemoal@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Document the device tree bindings for the Canaan Kendryte K210 SoC reset controller driver in Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml. The header file include/dt-bindings/reset/k210-rst.h is added to define all possible reset lines of the SoC. Signed-off-by: Damien Le Moal --- .../bindings/reset/canaan,k210-rst.yaml | 40 ++++++++++++++++++ include/dt-bindings/reset/k210-rst.h | 42 +++++++++++++++++++ 2 files changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml create mode 100644 include/dt-bindings/reset/k210-rst.h diff --git a/Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml b/Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml new file mode 100644 index 000000000000..53e4ede9c0bd --- /dev/null +++ b/Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml @@ -0,0 +1,40 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reset/canaan,k210-rst.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Canaan Kendryte K210 Reset Controller Device Tree Bindings + +maintainers: + - Damien Le Moal + +description: | + Canaan Kendryte K210 reset controller driver which supports the SoC + system controller supplied reset registers for the various peripherals + of the SoC. The K210 reset controller node must be defined as a child + node of the K210 system controller node. + + See also: + - dt-bindings/reset/k210-rst.h + +properties: + compatible: + const: canaan,k210-rst + + '#reset-cells': + const: 1 + +required: + - '#reset-cells' + - compatible + +additionalProperties: false + +examples: + - | + #include + sysrst: reset-controller { + compatible = "canaan,k210-rst"; + #reset-cells = <1>; + }; diff --git a/include/dt-bindings/reset/k210-rst.h b/include/dt-bindings/reset/k210-rst.h new file mode 100644 index 000000000000..883c1aed50e8 --- /dev/null +++ b/include/dt-bindings/reset/k210-rst.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2019 Sean Anderson + * Copyright (c) 2020 Western Digital Corporation or its affiliates. + */ +#ifndef RESET_K210_SYSCTL_H +#define RESET_K210_SYSCTL_H + +/* + * Kendryte K210 SoC system controller K210_SYSCTL_SOFT_RESET register bits. + * Taken from Kendryte SDK (kendryte-standalone-sdk). + */ +#define K210_RST_ROM 0 +#define K210_RST_DMA 1 +#define K210_RST_AI 2 +#define K210_RST_DVP 3 +#define K210_RST_FFT 4 +#define K210_RST_GPIO 5 +#define K210_RST_SPI0 6 +#define K210_RST_SPI1 7 +#define K210_RST_SPI2 8 +#define K210_RST_SPI3 9 +#define K210_RST_I2S0 10 +#define K210_RST_I2S1 11 +#define K210_RST_I2S2 12 +#define K210_RST_I2C0 13 +#define K210_RST_I2C1 14 +#define K210_RST_I2C2 15 +#define K210_RST_UART1 16 +#define K210_RST_UART2 17 +#define K210_RST_UART3 18 +#define K210_RST_AES 19 +#define K210_RST_FPIOA 20 +#define K210_RST_TIMER0 21 +#define K210_RST_TIMER1 22 +#define K210_RST_TIMER2 23 +#define K210_RST_WDT0 24 +#define K210_RST_WDT1 25 +#define K210_RST_SHA 26 +#define K210_RST_RTC 29 + +#endif /* RESET_K210_SYSCTL_H */