From patchwork Mon Mar 21 08:53:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ivan Bornyakov X-Patchwork-Id: 12787012 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 4CAC3C433EF for ; Mon, 21 Mar 2022 09:15:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345728AbiCUJOm (ORCPT ); Mon, 21 Mar 2022 05:14:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50448 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345725AbiCUJOi (ORCPT ); Mon, 21 Mar 2022 05:14:38 -0400 Received: from mail.pr-group.ru (mail.pr-group.ru [178.18.215.3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15C6822536; Mon, 21 Mar 2022 02:13:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=metrotek.ru; s=mail; h=from:subject:date:message-id:to:cc:mime-version:content-transfer-encoding; bh=kwm1/K+GoiGCtITPF5P1uygRjlMoM0iA7fuVQFLC+T8=; b=hZnUrkiRYEar6Gdusyb6BAJgCjfnMYQGim3sFznl5Ir/WYr8l3LBprSB1Wp3mA1aWPoNaHpHoHZeU 2/XUA4QjXaIEQx9l75cjvUp7paVAHuXdHYLbYE21LPkfCBpao0v8Z/yXEJ03Ex4HL7J3jASZLekK4f RumJZzMAO07ZGCEQBc/z1650U9gY3TYbygmtmvZ6j/lMz8CVXgLiXvj8OQvpn0E3qD2OsPZmkVCplM inxNo1Ks+0nPuG9BJ2JDf3tkk3gCiDq7dtiZeMOBMngonMnLg8e+z5Xcb348pE7tMvkdHo0TU04O3y Kbi8lH0Qu1kF2GejJsAj3Jv4SSd1jJQ== X-Kerio-Anti-Spam: Build: [Engines: 2.16.2.1410, Stamp: 3], Multi: [Enabled, t: (0.000008,0.007924)], BW: [Enabled, t: (0.000021,0.000002)], RTDA: [Enabled, t: (0.077207), Hit: No, Details: v2.28.0; Id: 15.52kce3.1fuls0elk.3s8m; mclb], total: 0(700) X-Footer: bWV0cm90ZWsucnU= Received: from localhost.localdomain ([85.143.252.66]) (authenticated user i.bornyakov@metrotek.ru) by mail.pr-group.ru with ESMTPSA (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256 bits)); Mon, 21 Mar 2022 12:12:55 +0300 From: Ivan Bornyakov Cc: Ivan Bornyakov , mdf@kernel.org, hao.wu@intel.com, yilun.xu@intel.com, trix@redhat.com, conor.dooley@microchip.com, robh+dt@kernel.org, system@metrotek.ru, linux-kernel@vger.kernel.org, linux-fpga@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v5 0/2] Microchip Polarfire FPGA manager Date: Mon, 21 Mar 2022 11:53:40 +0300 Message-Id: <20220321085342.22228-1-i.bornyakov@metrotek.ru> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-fpga@vger.kernel.org Add support to the FPGA manager for programming Microchip Polarfire FPGAs over slave SPI interface with .dat formatted bitsream image. Changelog: v1 -> v2: fix printk formating v2 -> v3: * replace "microsemi" with "microchip" * replace prefix "microsemi_fpga_" with "mpf_" * more sensible .compatible and .name strings * remove unused defines STATUS_SPI_VIOLATION and STATUS_SPI_ERROR v3 -> v4: fix unused variable warning Put 'mpf_of_ids' definition under conditional compilation, so it would not hang unused if CONFIG_OF is not enabled. v4 -> v5: * prefix defines with MPF_ * mdelay() -> usleep_range() * formatting fixes * add DT bindings doc * rework fpga_manager_ops.write() to fpga_manager_ops.write_sg() We can't parse image header in write_init() because image header size is not known beforehand. Thus parsing need to be done in fpga_manager_ops.write() callback, but fpga_manager_ops.write() also need to be reenterable. On the other hand, fpga_manager_ops.write_sg() is called once. Thus, rework usage of write() callback to write_sg(). v5 -> v6: fix patch applying I forgot to clean up unrelated local changes which lead to error on patch 0001-fpga-microchip-spi-add-Microchip-MPF-FPGA-manager.patch applying on vanilla kernel. Ivan Bornyakov (2): fpga: microchip-spi: add Microchip MPF FPGA manager dt-bindings: fpga: add binding doc for microchip-spi fpga mgr .../fpga/microchip,mpf-spi-fpga-mgr.yaml | 32 ++ drivers/fpga/Kconfig | 10 + drivers/fpga/Makefile | 1 + drivers/fpga/microchip-spi.c | 448 ++++++++++++++++++ 4 files changed, 491 insertions(+) create mode 100644 Documentation/devicetree/bindings/fpga/microchip,mpf-spi-fpga-mgr.yaml create mode 100644 drivers/fpga/microchip-spi.c