From mboxrd@z Thu Jan 1 00:00:00 1970 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 037F1105F78B for ; Fri, 13 Mar 2026 10:08:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:CC:To: Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Date:Subject: 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=p/yfsVGqBSlh/KpcWWFFe7HwV9EjPFyV9HQe5IbEftw=; b=mrpshsEEhPM4hd 8gkB1I0QBmwEecMdnIKImKWJmyA04nHZkKQg6MNox6TU7AEb5PrGudeBYO+uPijt1OmrzpxFjZBsk 3x9YOYSqajTHceUIg5eDT1SRU+frV0cqRDQPyitummXQgk7IcXtHK8dEylWmGPN8pUQatDXITixTX vbItF8VTfZxeZfz3iYWmmDlRk1+/PXdM6qEx7u++UrHR1jg3LgH54+mfw+3GGiwR4e6y2VagFBpnJ erMO8sXwX1mugRgqXVFcEDcjwM0Z7b6Ccsulc/lZAIfdUd/qETpCZWk+5KD+fEqpBDUA/h7nZmNlC Hz2Z86d/+TEE6VhJNO1w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w0zRK-0000000HTce-1cFv; Fri, 13 Mar 2026 10:08:18 +0000 Received: from mail.aspeedtech.com ([211.20.114.72] helo=TWMBX01.aspeed.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w0zRI-0000000HTbv-0UJn for linux-arm-kernel@lists.infradead.org; Fri, 13 Mar 2026 10:08:17 +0000 Received: from TWMBX01.aspeed.com (192.168.0.62) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.10; Fri, 13 Mar 2026 18:08:12 +0800 Received: from [127.0.1.1] (192.168.10.13) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server id 15.2.1748.10 via Frontend Transport; Fri, 13 Mar 2026 18:08:12 +0800 From: aspeedyh Subject: [PATCH 0/7] soc: aspeed: Add AST2600 eSPI controller support Date: Fri, 13 Mar 2026 18:07:35 +0800 Message-ID: <20260313-upstream_espi-v1-0-9504428e1f43@aspeedtech.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAOjhs2kC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDY0Nj3dKC4pKi1MTc+NTigkzdFMu01EQzsxRDc3MjJaCegqLUtMwKsHn RsbW1AP7qydNfAAAA X-Change-ID: 20260313-upstream_espi-d9fea66d1772 To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , "Andrew Jeffery" , Ryan Chen , Philipp Zabel CC: , , , , , , aspeedyh X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1773396491; l=2464; i=yh_chung@aspeedtech.com; s=20260313; h=from:subject:message-id; bh=dv5zwPulTbWutjwEBbvd8aN2CQwO1vLki17npHgF3/4=; b=nUOuJPbhuALmHWWELdAretyV2JAWTCsPDyW/E3eLvLC97y+ASQ1g235rMs0BGU4fJxvyKdVgL cwCz7v+X4mJCXLF8vRruR+wjYb9b/KSTnmlsNy2EvAUjaSWkG6Uk8LW X-Developer-Key: i=yh_chung@aspeedtech.com; a=ed25519; pk=o71dz0J8lpN+v0f3Mk4gT9PfVngADPC1Pex4aK6VigM= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260313_030816_160419_153F0CB0 X-CRM114-Status: UNSURE ( 7.64 ) X-CRM114-Notice: Please train this message. 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 series adds initial support for the eSPI controller found on ASPEED AST2600 BMC SoCs. The series introduces a eSPI controller framework for ASPEED SoCs under drivers/soc/aspeed/, adds AST2600-specific controller support for peripheral and flash channels, defines the corresponding devicetree binding, and adds the AST2600 eSPI controller node to the SoC dtsi. The driver is intended to support host-BMC communication over the BMC-side eSPI slave controller present on AST2600 systems. Patch summary: 1. dt-bindings: soc: aspeed: Add AST2600 eSPI controller 2. soc: aspeed: Introduce core eSPI controller support 3. soc: aspeed: Add AST2600 peripheral channel port I/O support 4. soc: aspeed: Add eSPI TAFS backend support 5. soc: aspeed: Add espi flash channel support 6. soc: aspeed: Add sysfs controls for flash LUN selection 7. arm: dts: aspeed: Add eSPI node for AST2600 This series has been tested on AST2600 platform with Intel's host eSPI controller. Signed-off-by: aspeedyh --- aspeedyh (7): dt-bindings: soc: aspeed: Add AST2600 eSPI controller soc: aspeed: Introduce core eSPI controller support soc: aspeed: Add AST2600 peripheral channel port I/O support soc: aspeed: Add eSPI TAFS backend support soc: aspeed: Add eSPI flash channel support soc: aspeed: Add sysfs controls for flash backend selection arm: dts: aspeed: Add eSPI node for AST2600 .../bindings/soc/aspeed/aspeed,ast2600-espi.yaml | 74 +++ arch/arm/boot/dts/aspeed/aspeed-g6.dtsi | 11 + drivers/soc/aspeed/Kconfig | 7 + drivers/soc/aspeed/Makefile | 1 + drivers/soc/aspeed/espi/Makefile | 1 + drivers/soc/aspeed/espi/aspeed-espi-comm.h | 62 +++ drivers/soc/aspeed/espi/aspeed-espi.c | 618 +++++++++++++++++++++ drivers/soc/aspeed/espi/aspeed-espi.h | 63 +++ drivers/soc/aspeed/espi/ast2600-espi.c | 304 ++++++++++ drivers/soc/aspeed/espi/ast2600-espi.h | 302 ++++++++++ drivers/soc/aspeed/espi/espi_storage.c | 322 +++++++++++ drivers/soc/aspeed/espi/espi_storage.h | 32 ++ 12 files changed, 1797 insertions(+) --- base-commit: 0257f64bdac7fdca30fa3cae0df8b9ecbec7733a change-id: 20260313-upstream_espi-d9fea66d1772 Best regards, -- aspeedyh