From patchwork Tue Nov 24 04:37:15 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: 332554 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=-16.6 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=ham 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 C477BC64E7D for ; Tue, 24 Nov 2020 04:37:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6E32A2085B for ; Tue, 24 Nov 2020 04:37:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="TBF/95km" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729205AbgKXEht (ORCPT ); Mon, 23 Nov 2020 23:37:49 -0500 Received: from esa6.hgst.iphmx.com ([216.71.154.45]:49765 "EHLO esa6.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729204AbgKXEhs (ORCPT ); Mon, 23 Nov 2020 23:37:48 -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=1606192668; x=1637728668; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=S1YmWmqvdIYXxQKwYnEAtpW95Vpx9w6kjXteMcQR5RY=; b=TBF/95kmmBO9ZT4OBczwtuIpo2Wx3nNUl4At7iaVMmA45KBqZZahA/yV wztSNezEuUPG9GuGnBuBp+9agYkSYO9y+ndeslV1KrkH3UyKGcoRZC85b P/eXLFGlNAceOS0wfSwcrtxoGsHl0CsKJrPijblSoP+etMMdHyyU/Wbw3 xojSq9+jg8J3KBFc0PoM6afCYHSW3zRlSFLZmVPpLtktBGwBBAaUuwSEy cHrfzOhmPm0oyCJdtjdQ8FSsq1SyNLHNL5cSd4ULDKQvLENO15w/ddXcy lq5GbzbEZZvh2RWpbh/wjY2QEVTuRIxI2WaM18SILpFAowot1DIg0Kgw5 w==; IronPort-SDR: VS/SENuz6tivSDYoIdpqtkYZMi2Bzl0nD9bChheVjadjm1gwS6qqAzxYR5j0ELoKVVLJZ7yJk8 AfVjdJ9ExGCmGSW6wDzM2vl3G8/fu/WYmSgEEv4O/RBFmOCc5AVdtlulHObfldsKGjR43wikcf i2y7wi4tPHk/qADUgOBd8jbdRisE83b/y4H+UWl82NU1cPGd0RaEtlewGUQ5OKl6tRVgU9gkOq uxEleUNhEO6K9aa8EXTaM8NY5B1aCFPrkkTSf7XdAWvi2WUHYhXCz/jJ8kUtT6XbPi5O4+B+Sl Twc= X-IronPort-AV: E=Sophos;i="5.78,365,1599494400"; d="scan'208";a="154498174" Received: from h199-255-45-14.hgst.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 24 Nov 2020 12:37:48 +0800 IronPort-SDR: YflpDCFetfHqf5+NLFr9GHoGbgPz5BuE86Ss8b9Ag767l1aNaewa+dn8a2Yejx+xt6ZTLdLgoT 9gAOWPvhQhH87uSwHquw1ThEDaBQ9aeJU= Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Nov 2020 20:23:32 -0800 IronPort-SDR: F5fVr50SlB7QRLrzq/VnNQyH7KQ+mbrTSrqO+1qHo4a1ELKwOzxE7LezcZ+nX7A2v0aYJ4/pWm py7q1U+o+2kg== WDCIronportException: Internal Received: from hdrdzf2.ad.shared (HELO twashi.fujisawa.hgst.com) ([10.84.71.163]) by uls-op-cesaip01.wdc.com with ESMTP; 23 Nov 2020 20:37:46 -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 v2 08/21] dt-bindings: Document canaan,k210-rst bindings Date: Tue, 24 Nov 2020 13:37:15 +0900 Message-Id: <20201124043728.199852-9-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201124043728.199852-1-damien.lemoal@wdc.com> References: <20201124043728.199852-1-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 */