From patchwork Wed Jul 20 20:11:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Hawkins, Nick" X-Patchwork-Id: 592087 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 83578CCA48C for ; Wed, 20 Jul 2022 20:11:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230105AbiGTULT (ORCPT ); Wed, 20 Jul 2022 16:11:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38538 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230025AbiGTULR (ORCPT ); Wed, 20 Jul 2022 16:11:17 -0400 Received: from mx0b-002e3701.pphosted.com (mx0b-002e3701.pphosted.com [148.163.143.35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15D643138D; Wed, 20 Jul 2022 13:11:15 -0700 (PDT) Received: from pps.filterd (m0134423.ppops.net [127.0.0.1]) by mx0b-002e3701.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 26KJq9ri001534; Wed, 20 Jul 2022 20:10:49 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hpe.com; h=from : to : cc : subject : date : message-id; s=pps0720; bh=tBXv1RN/QxUEA3fvWqFQRswjLYubC9wBxdrrvuT2QNs=; b=dVcce2w28B9/gLrmpvtHfdkEDFnSK7C8l8R5dLacOIZHX/1JZd2D9FLdY4vfckAoU1X3 rtdMn2x9jBEX7W93XZFULTQIlDQS5ajHLdtfrgaJsgRY758NwWRnlVNsZCMlA4si25qX zvMAdoCU6c832e56N1czngBTStiyV9I9AywqapJI6Sw46MR4tKsuCGvFzvTQK+Mpdddp Mqgbgox1wJj4qNrmasMquMOe3kU7HxKXeAGOhACib1/TlHnd7wP3wYWaNIQuesMbdekU fOT+F4/EUWQMfEhxvg5GyYfS+kHr04H68GMBo0E3AoBPX4vwO8coXxnZ8eRIwT4hqWDD 2A== Received: from p1lg14879.it.hpe.com (p1lg14879.it.hpe.com [16.230.97.200]) by mx0b-002e3701.pphosted.com (PPS) with ESMTPS id 3hen90sn0f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 20 Jul 2022 20:10:49 +0000 Received: from p1lg14886.dc01.its.hpecorp.net (unknown [10.119.18.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by p1lg14879.it.hpe.com (Postfix) with ESMTPS id E96BDD2CF; Wed, 20 Jul 2022 20:10:47 +0000 (UTC) Received: from hpe.com (unknown [16.231.227.36]) by p1lg14886.dc01.its.hpecorp.net (Postfix) with ESMTP id 82B5780906E; Wed, 20 Jul 2022 20:10:46 +0000 (UTC) From: nick.hawkins@hpe.com To: nick.hawkins@hpe.com Cc: broonie@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, verdun@hpe.com, linux@armlinux.org.uk, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, arnd@arndb.de, joel@jms.id.au Subject: [PATCH v1 0/5] Add SPI Driver to HPE GXP Architecture Date: Wed, 20 Jul 2022 15:11:53 -0500 Message-Id: <20220720201158.78068-1-nick.hawkins@hpe.com> X-Mailer: git-send-email 2.17.1 X-Proofpoint-GUID: ofamtHPacx6DKFeTSXTLVx9qnGQtnxcE X-Proofpoint-ORIG-GUID: ofamtHPacx6DKFeTSXTLVx9qnGQtnxcE X-HPE-SCL: -1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-07-20_12,2022-07-20_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 spamscore=0 mlxlogscore=688 clxscore=1011 bulkscore=0 lowpriorityscore=0 adultscore=0 priorityscore=1501 impostorscore=0 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2206140000 definitions=main-2207200081 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org From: Nick Hawkins The GXP supports 3 separate SPI interfaces to accommodate the system flash, core flash, and other functions. The SPI engine supports variable clock frequency, selectable 3-byte or 4-byte addressing and a configurable x1, x2, and x4 command/address/data modes. The memory buffer for reading and writing ranges between 256 bytes and 8KB. This driver supports access to the core flash and bios part. Nick Hawkins (5): spi: spi-gxp: Add support for HPE GXP SoCs spi: dt-bindings: add documentation for hpe,gxp-spifi ARM: dts: hpe: Add spi driver node ARM: configs: multi_v7_defconfig: Enable HPE GXP SPI driver MAINTAINERS: add spi support to GXP .../bindings/spi/hpe,gxp-spifi.yaml | 56 +++ MAINTAINERS | 2 + arch/arm/boot/dts/hpe-bmc-dl360gen10.dts | 58 +++ arch/arm/boot/dts/hpe-gxp.dtsi | 21 +- arch/arm/configs/multi_v7_defconfig | 1 + drivers/spi/Kconfig | 7 + drivers/spi/Makefile | 1 + drivers/spi/spi-gxp.c | 355 ++++++++++++++++++ 8 files changed, 500 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/spi/hpe,gxp-spifi.yaml create mode 100644 drivers/spi/spi-gxp.c