From patchwork Fri May 6 12:57:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ivan Bornyakov X-Patchwork-Id: 12841110 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 44E3DC433EF for ; Fri, 6 May 2022 13:20:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1392370AbiEFNWt (ORCPT ); Fri, 6 May 2022 09:22:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44500 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343556AbiEFNWp (ORCPT ); Fri, 6 May 2022 09:22:45 -0400 Received: from mail.pr-group.ru (mail.pr-group.ru [178.18.215.3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D9E52694AA; Fri, 6 May 2022 06:18:58 -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=mZlBtG1vfSJppBR/w0ltQ2btDeRMYO/PRq8gVzZKsqk=; b=ec2E6S4LBuYKXWmdZ/gjQ9Iqvf+GqPJl1xuhbuX+jNqwc2G1Tl9KqFqw1+CNYmlY549/NndsU6phR pl6XYsgi/s1keDsI6zDd8e4Vi6mgQC+b4Pqn35mOi5BQqA5LLxwsuW0rj2wwzxbHLqGHsZx/cHGcrB riCSvvdg/qi991eqEZFlt3mMYR00VSgokSmpuuWyopfALWr4MtUUmQxCS5uhahauFACTHHhKmgGeS/ CXWIlU8J16JbvQxIhos3PMxp6jZUK6OBxM2Gx0K5MO1PDrfaz8v9lfGoEceue62aDEhQvzQ/A8IvjB opHO0atT6jLO2L8EAnlbl6SBnG+0+bg== X-Kerio-Anti-Spam: Build: [Engines: 2.16.3.1422, Stamp: 3], Multi: [Enabled, t: (0.000009,0.010893)], BW: [Enabled, t: (0.000015,0.000001)], RTDA: [Enabled, t: (0.092822), Hit: No, Details: v2.39.0; Id: 15.52k0ot.1g2cobinr.lk2; 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)); Fri, 6 May 2022 16:18:40 +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 v10 0/3] Microchip Polarfire FPGA manager Date: Fri, 6 May 2022 15:57:07 +0300 Message-Id: <20220506125710.25550-1-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 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 | 369 ++++++++++++++++++ include/linux/fpga/fpga-mgr.h | 13 +- 6 files changed, 551 insertions(+), 36 deletions(-) create mode 100644 Documentation/devicetree/bindings/fpga/microchip,mpf-spi-fpga-mgr.yaml create mode 100644 drivers/fpga/microchip-spi.c