From patchwork Wed Sep 1 03:30:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ChiaWei Wang X-Patchwork-Id: 12468199 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=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 2FE72C432BE for ; Wed, 1 Sep 2021 03:32:52 +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 F1E9560243 for ; Wed, 1 Sep 2021 03:32:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org F1E9560243 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=nd6yIFUxHqcr0i4Z7GI0mVZ22jwAJj56HiMcFPSJB4k=; b=E87P5gDGOQhAtG PJIRQZ6DDyIcyJvi1OzKRwc7pdP9WkEb39Z3SPfar6GjKjhsCRtANOWygUzlo9dKr+zLO3y/QMj+Q ORtP/HZiMiwofZzyF3p3wHwH42pCBUj8ntUjQJz72Gqta46PWQdtdjjzuSR1uAMLa+Cgp++8gUuco XGgCGkYFoseOcW7/z2keCx+3mrYf/n/ncdkUUgeHTGD2RkoqBEravyRCJhjIVwq1TABuaHTg/Phf7 U5YNiwMR9rrmY4cHrrTWeGbRyMMqO1nPOmBijoW/Z7I97yL+xWyTXN/sAYWXnH+gbHOwoJDJdFjy7 AFO4q92AciUCjmaLVYuQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mLGxd-003f2H-RF; Wed, 01 Sep 2021 03:30:49 +0000 Received: from [211.20.114.71] (helo=twspam01.aspeedtech.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mLGxQ-003f0M-CW for linux-arm-kernel@lists.infradead.org; Wed, 01 Sep 2021 03:30:37 +0000 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 1813BE3j043734; Wed, 1 Sep 2021 11:11:14 +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; Wed, 1 Sep 2021 11:30:15 +0800 From: Chia-Wei Wang To: , , , , , , , CC: Subject: [PATCH v4 0/4] arm: aspeed: Add eSPI support Date: Wed, 1 Sep 2021 11:30:11 +0800 Message-ID: <20210901033015.910-1-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 1813BE3j043734 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210831_203036_764950_B7AB2A98 X-CRM114-Status: GOOD ( 13.19 ) 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 This patch series add the driver support for the eSPI controller of Aspeed 5/6th generation SoCs. This controller is a slave device communicating with a master over Enhanced Serial Peripheral Interface (eSPI). It supports all of the 4 eSPI channels, namely peripheral, virtual wire, out-of-band, and flash, and operates at max frequency of 66MHz. v4: - fix dt-bindgins error with patternProperties - fix data type warning for ARM64 compilation - replace header based implementation with .c files - add more description for the ioctl interface v3: - remove the redundant patch "clk: aspeed: Add eSPI reset bit" - fix missing header inclusion reported by test bot - fix dt-bindings error reported by yamllint v2: - remove irqchip implementation - merge per-channel drivers into single one to avoid the racing issue among eSPI handshake process and driver probing. Chia-Wei Wang (4): dt-bindings: aspeed: Add eSPI controller MAINTAINER: Add ASPEED eSPI driver entry soc: aspeed: Add eSPI driver ARM: dts: aspeed: Add eSPI node .../devicetree/bindings/soc/aspeed/espi.yaml | 162 +++++ MAINTAINERS | 9 + arch/arm/boot/dts/aspeed-g6.dtsi | 17 + drivers/soc/aspeed/Kconfig | 11 + drivers/soc/aspeed/Makefile | 5 + drivers/soc/aspeed/aspeed-espi-ctrl.c | 214 +++++++ drivers/soc/aspeed/aspeed-espi-ctrl.h | 308 ++++++++++ drivers/soc/aspeed/aspeed-espi-flash.c | 352 +++++++++++ drivers/soc/aspeed/aspeed-espi-flash.h | 45 ++ drivers/soc/aspeed/aspeed-espi-ioc.h | 195 ++++++ drivers/soc/aspeed/aspeed-espi-oob.c | 558 ++++++++++++++++++ drivers/soc/aspeed/aspeed-espi-oob.h | 70 +++ drivers/soc/aspeed/aspeed-espi-perif.c | 511 ++++++++++++++++ drivers/soc/aspeed/aspeed-espi-perif.h | 45 ++ drivers/soc/aspeed/aspeed-espi-vw.c | 137 +++++ drivers/soc/aspeed/aspeed-espi-vw.h | 21 + 16 files changed, 2660 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/aspeed/espi.yaml create mode 100644 drivers/soc/aspeed/aspeed-espi-ctrl.c create mode 100644 drivers/soc/aspeed/aspeed-espi-ctrl.h create mode 100644 drivers/soc/aspeed/aspeed-espi-flash.c create mode 100644 drivers/soc/aspeed/aspeed-espi-flash.h create mode 100644 drivers/soc/aspeed/aspeed-espi-ioc.h create mode 100644 drivers/soc/aspeed/aspeed-espi-oob.c create mode 100644 drivers/soc/aspeed/aspeed-espi-oob.h create mode 100644 drivers/soc/aspeed/aspeed-espi-perif.c create mode 100644 drivers/soc/aspeed/aspeed-espi-perif.h create mode 100644 drivers/soc/aspeed/aspeed-espi-vw.c create mode 100644 drivers/soc/aspeed/aspeed-espi-vw.h