From patchwork Thu Sep 9 10:29:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ChiaWei Wang X-Patchwork-Id: 12482871 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=-12.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 C1257C433EF for ; Thu, 9 Sep 2021 10:31:38 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8D7A160E05 for ; Thu, 9 Sep 2021 10:31:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8D7A160E05 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aspeedtech.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=1bOLrK5mAorxS7scI1Gi4Cn+VAKrGwpXPguPv+O9gkM=; b=CT105bnVbdmFLk /Fzdk4+faSD49KiNS1RWje6BheeUAj95uJqDe+cA08tyyVh+tW5DzKIZRr784QmigOR4lCTebGzLO thMBbgLg0iDjMk6zOSxyv/29uiWY4kLNA142hTESVj/gCwYvpkQIj+ciW3sF3iiV04BlmhM6jGD2+ zdLcMulYPRulJhqgLIhwVmr3o2PMeSMZM5tz73h9ipojM8F9h6RSB6r9DoR9o+1KmhYwQd2lfqd7z 9ZH1uyIWV/bsCRqB1c8RZm86ipTsSsAAdSDz3rA0tByTCntmHz2X2ogBdK1pHtfKwbD/4htIR5zYu J8TaOFqnaU98Ox3ZrIEg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mOHJN-008uTT-EV; Thu, 09 Sep 2021 10:29:41 +0000 Received: from twspam01.aspeedtech.com ([211.20.114.71]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mOHJJ-008uSL-In for linux-arm-kernel@lists.infradead.org; Thu, 09 Sep 2021 10:29:39 +0000 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 189A9ikH075150; Thu, 9 Sep 2021 18:09:44 +0800 (GMT-8) (envelope-from chiawei_wang@aspeedtech.com) Received: from ChiaWeiWang-PC.aspeed.com (192.168.2.66) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 9 Sep 2021 18:29:14 +0800 From: Chia-Wei Wang To: , , , , , , , CC: , Subject: [PATCH v3 0/3] arm: aspeed: Add UART routing support Date: Thu, 9 Sep 2021 18:29:04 +0800 Message-ID: <20210909102907.32037-1-chiawei_wang@aspeedtech.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [192.168.2.66] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 189A9ikH075150 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210909_032937_929997_83DAF568 X-CRM114-Status: GOOD ( 10.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add UART routing driver and the device tree nodes. v3: - Add individual bindings in YAML - Add support for AST24xx (AST25xx shares the same design) - Add more explanation for the sysfs ABI v2: - Add dt-bindings - Add ABI documents for the exported sysfs interface - Revise driver implementation suggested by Joel Chia-Wei Wang (3): dt-bindings: aspeed: Add UART routing controller soc: aspeed: Add UART routing support ARM: dts: aspeed: Add uart routing to device tree .../testing/sysfs-driver-aspeed-uart-routing | 15 + .../bindings/soc/aspeed/uart-routing.yaml | 70 ++ arch/arm/boot/dts/aspeed-g4.dtsi | 6 + arch/arm/boot/dts/aspeed-g5.dtsi | 6 + arch/arm/boot/dts/aspeed-g6.dtsi | 6 + drivers/soc/aspeed/Kconfig | 10 + drivers/soc/aspeed/Makefile | 9 +- drivers/soc/aspeed/aspeed-uart-routing.c | 603 ++++++++++++++++++ 8 files changed, 721 insertions(+), 4 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-driver-aspeed-uart-routing create mode 100644 Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml create mode 100644 drivers/soc/aspeed/aspeed-uart-routing.c