From patchwork Tue Oct 4 03:28:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neal Liu X-Patchwork-Id: 612383 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 0C36FC433F5 for ; Tue, 4 Oct 2022 03:32:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229713AbiJDDcC (ORCPT ); Mon, 3 Oct 2022 23:32:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229723AbiJDDbR (ORCPT ); Mon, 3 Oct 2022 23:31:17 -0400 Received: from twspam01.aspeedtech.com (twspam01.aspeedtech.com [211.20.114.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 733E22870B; Mon, 3 Oct 2022 20:30:04 -0700 (PDT) Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 29437FXe092749; Tue, 4 Oct 2022 11:07:16 +0800 (GMT-8) (envelope-from neal_liu@aspeedtech.com) Received: from localhost.localdomain (192.168.10.10) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 4 Oct 2022 11:28:49 +0800 From: Neal Liu To: Herbert Xu , "David S . Miller" , Joel Stanley , Andrew Jeffery , Rob Herring , Krzysztof Kozlowski , "Chia-Wei Wang --cc=linux-kernel @ vger . kernel . org" CC: , , , , Subject: [PATCH v2 4/4] dt-bindings: bus: add documentation for Aspeed AHBC Date: Tue, 4 Oct 2022 11:28:41 +0800 Message-ID: <20221004032841.3714928-5-neal_liu@aspeedtech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221004032841.3714928-1-neal_liu@aspeedtech.com> References: <20221004032841.3714928-1-neal_liu@aspeedtech.com> MIME-Version: 1.0 X-Originating-IP: [192.168.10.10] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 29437FXe092749 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Add device tree binding documentation for the Aspeed Advanced High-Performance Bus (AHB) Controller. Signed-off-by: Neal Liu --- .../bindings/bus/aspeed,ast2600-ahbc.yaml | 46 +++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/bus/aspeed,ast2600-ahbc.yaml diff --git a/Documentation/devicetree/bindings/bus/aspeed,ast2600-ahbc.yaml b/Documentation/devicetree/bindings/bus/aspeed,ast2600-ahbc.yaml new file mode 100644 index 000000000000..c42a350d30a1 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/aspeed,ast2600-ahbc.yaml @@ -0,0 +1,46 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/aspeed,ast2600-ahbc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ASPEED Advanced High-Performance Bus Controller (AHBC) Device Tree Bindings + +maintainers: + - Neal Liu + - Chia-Wei Wang + +description: | + Advanced High-performance Bus Controller (AHBC) supports plenty of mechanisms + including a priority arbiter, an address decoder and a data multiplexer + to control the overall operations of Advanced High-performance + Bus (AHB). AHB is the main system bus for ARM CPU to communicate with the + related peripherals. + +properties: + compatible: + enum: + - aspeed,ast2600-ahbc + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + bus { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + ahbc: bus@1e600000 { + compatible = "aspeed,ast2600-ahbc"; + reg = <0x1e600000 0x100>; + }; + };