From patchwork Thu Aug 19 08:00:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ChiaWei Wang X-Patchwork-Id: 12446541 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=-12.5 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,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 24E32C4338F for ; Thu, 19 Aug 2021 08:03:30 +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 E1537610A6 for ; Thu, 19 Aug 2021 08:03:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E1537610A6 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=Zoa3BgLoOxlzJ66WZMJ8GYsrUTL66XJzT9YVp1M1wnM=; b=R6C+Iuu6oSiG4S rxtso0jGUej5OqHjhjFcMz1Bm3lZSUiVimBb1QEz+UJ2i/RuOEscM+BzApIZlJy01RU8nHDwo7+5n 1gSWNpkOSwatrFSj+a5Ct5ouudLUcttoo2gg4agfqlaNuK/yd/2QTH2COLI1tkGaNcTWkgKluX4Gz oWhXyPI5Rzgw8AdM4M0ODQ4CWsVxGZAv8HhVSeLhaotJTBBEQNBfk7jSV+SfsZWkoBoXS/D9WQjl2 gdHkdq82weJUWMX3Xnqbjra+ZqwtazOv97lnVpDJJmIR+TljCjm6m4IFHIcCeyxZQKO6LbPAwnKbf PKWuqrIFkM4ZfsRpJHDQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mGcz0-007bmK-Ng; Thu, 19 Aug 2021 08:01:04 +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 1mGcyw-007bkY-C7 for linux-arm-kernel@lists.infradead.org; Thu, 19 Aug 2021 08:00:59 +0000 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 17J7gOT4024037; Thu, 19 Aug 2021 15:42:24 +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, 19 Aug 2021 16:00:36 +0800 From: Chia-Wei Wang To: , , , , , , , CC: Subject: [PATCH v2 0/5] arm: aspeed: Add eSPI support Date: Thu, 19 Aug 2021 16:00:35 +0800 Message-ID: <20210819080040.31242-1-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 17J7gOT4024037 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210819_010058_721759_11BD212E X-CRM114-Status: GOOD ( 11.95 ) 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. 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 (5): dt-bindings: aspeed: Add eSPI controller MAINTAINER: Add ASPEED eSPI driver entry clk: aspeed: Add eSPI reset bit soc: aspeed: Add eSPI driver ARM: dts: aspeed: Add eSPI node .../devicetree/bindings/soc/aspeed/espi.yaml | 158 +++++ MAINTAINERS | 9 + arch/arm/boot/dts/aspeed-g6.dtsi | 17 + drivers/soc/aspeed/Kconfig | 11 + drivers/soc/aspeed/Makefile | 1 + drivers/soc/aspeed/aspeed-espi-ctrl.c | 206 ++++++ drivers/soc/aspeed/aspeed-espi-ctrl.h | 304 +++++++++ drivers/soc/aspeed/aspeed-espi-flash.h | 380 +++++++++++ drivers/soc/aspeed/aspeed-espi-ioc.h | 153 +++++ drivers/soc/aspeed/aspeed-espi-oob.h | 611 ++++++++++++++++++ drivers/soc/aspeed/aspeed-espi-perif.h | 512 +++++++++++++++ drivers/soc/aspeed/aspeed-espi-vw.h | 142 ++++ include/dt-bindings/clock/ast2600-clock.h | 1 + 13 files changed, 2505 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.h create mode 100644 drivers/soc/aspeed/aspeed-espi-ioc.h create mode 100644 drivers/soc/aspeed/aspeed-espi-oob.h create mode 100644 drivers/soc/aspeed/aspeed-espi-perif.h create mode 100644 drivers/soc/aspeed/aspeed-espi-vw.h