From patchwork Sat May 7 07:43:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ivan Bornyakov X-Patchwork-Id: 12841894 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 E357DC433FE for ; Sat, 7 May 2022 08:06:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1446055AbiEGIIc (ORCPT ); Sat, 7 May 2022 04:08:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1383644AbiEGIIa (ORCPT ); Sat, 7 May 2022 04:08:30 -0400 Received: from mail.pr-group.ru (mail.pr-group.ru [178.18.215.3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6111E5AED7; Sat, 7 May 2022 01:04:41 -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=/nII6bv4VY4msVnqMTCLeCDhOI3oca7i1l8rOiu7MvY=; b=Vf3McYCVdprgHPSOQoJ/ZfbaSMb+CrEdvN4vMVyT6RCWkhvhz1DLUub1mzHde9WHehZtQcuk+Ucj3 r1GllRKC94DbCo4o0l2XJcgzUII8axcEn8EuTLO6vHOxcJ2/CmwNnSTtSY7dSJmq8wnM/OuH8biMyj GyttK8h32Hb3Jo6HVN3Y0nCxYncvovIviTTA9QpqluRlOgYkb7yfKQARcvuj44cSJEs2ZDk3CGcFP2 I7ABWIr6k0HOcV8Jzrx72Tbi2BvRZBLTzszgubq0d5PJgR3PYO2AOR4vNe3JabVxn23wfCE2Vupaeh dd1SkZfOKHF7QWuiF+NyteDCFG21P7g== X-Kerio-Anti-Spam: Build: [Engines: 2.16.3.1422, Stamp: 3], Multi: [Enabled, t: (0.000009,0.010983)], BW: [Enabled, t: (0.000019,0.000001)], RTDA: [Enabled, t: (0.093480), Hit: No, Details: v2.39.0; Id: 15.52k4s6.1g2eoon7s.34r9; mclb], total: 0(700) X-Footer: bWV0cm90ZWsucnU= Received: from localhost.localdomain ([178.70.36.174]) (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)); Sat, 7 May 2022 11:04:20 +0300 From: Ivan Bornyakov Cc: mdf@kernel.org, hao.wu@intel.com, yilun.xu@intel.com, trix@redhat.com, conor.dooley@microchip.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux-fpga@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, system@metrotek.ru, Ivan Bornyakov Subject: [PATCH v11 0/3] Microchip Polarfire FPGA manager Date: Sat, 7 May 2022 10:43:01 +0300 Message-Id: <20220507074304.11144-1-i.bornyakov@metrotek.ru> X-Mailer: git-send-email 2.35.1 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. v6 -> v7: fix binding doc to pass dt_binding_check v7 -> v8: another fix for dt_binding_check warning v8 -> v9: * add another patch to support bitstream offset in FPGA image buffer * rework fpga_manager_ops.write_sg() back to fpga_manager_ops.write() * move image header parsing from write() to write_init() v9 -> v10: * add parse_header() callback to fpga_manager_ops * adjust fpga_mgr_write_init[_buf|_sg]() for parse_header() usage * implement parse_header() in microchip-spi driver v10 -> v11: include missing unaligned.h to microchip-spi fix error: implicit declaration of function 'get_unaligned_le[16|32]' Ivan Bornyakov (3): fpga: fpga-mgr: support bitstream offset in image buffer 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 | 44 +++ drivers/fpga/Kconfig | 9 + drivers/fpga/Makefile | 1 + drivers/fpga/fpga-mgr.c | 151 +++++-- drivers/fpga/microchip-spi.c | 370 ++++++++++++++++++ include/linux/fpga/fpga-mgr.h | 13 +- 6 files changed, 552 insertions(+), 36 deletions(-) create mode 100644 Documentation/devicetree/bindings/fpga/microchip,mpf-spi-fpga-mgr.yaml create mode 100644 drivers/fpga/microchip-spi.c