From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752511AbdFZCAd (ORCPT ); Sun, 25 Jun 2017 22:00:33 -0400 Received: from mga07.intel.com ([134.134.136.100]:46879 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752406AbdFZCAF (ORCPT ); Sun, 25 Jun 2017 22:00:05 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.39,393,1493708400"; d="scan'208";a="118726573" From: Wu Hao To: atull@kernel.org, mdf@kernel.org, linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-api@vger.kernel.org, luwei.kang@intel.com, yi.z.zhang@intel.com, hao.wu@intel.com, Tim Whisonant , Enno Luebbers , Shiva Rao , Christopher Rauer Subject: [PATCH v2 16/22] fpga: intel: add fpga bridge platform driver for FME Date: Mon, 26 Jun 2017 09:52:12 +0800 Message-Id: <1498441938-14046-17-git-send-email-hao.wu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1498441938-14046-1-git-send-email-hao.wu@intel.com> References: <1498441938-14046-1-git-send-email-hao.wu@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds fpga bridge platform driver for Intel FPGA Management Engine. It implements the enable_set call back for fpga bridge. Signed-off-by: Tim Whisonant Signed-off-by: Enno Luebbers Signed-off-by: Shiva Rao Signed-off-by: Christopher Rauer Signed-off-by: Wu Hao --- drivers/fpga/Kconfig | 7 ++++ drivers/fpga/Makefile | 1 + drivers/fpga/intel-fpga-fme-br.c | 77 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 85 insertions(+) create mode 100644 drivers/fpga/intel-fpga-fme-br.c diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig index 6f2f623..05e2a8e 100644 --- a/drivers/fpga/Kconfig +++ b/drivers/fpga/Kconfig @@ -158,6 +158,13 @@ config INTEL_FPGA_FME_MGR Say Y to enable FPGA Manager driver for Intel FPGA Management Engine. +config INTEL_FPGA_FME_BRIDGE + tristate "Intel FPGA FME Bridge Driver" + depends on INTEL_FPGA_FME && FPGA_BRIDGE + help + Say Y to enable FPGA Bridge driver for Intel FPGA Management + Engine. + endif endif # FPGA diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile index d1d588b..131c105 100644 --- a/drivers/fpga/Makefile +++ b/drivers/fpga/Makefile @@ -32,6 +32,7 @@ obj-$(CONFIG_OF_FPGA_REGION) += of-fpga-region.o obj-$(CONFIG_INTEL_FPGA_PCI) += intel-fpga-pci.o obj-$(CONFIG_INTEL_FPGA_FME) += intel-fpga-fme.o obj-$(CONFIG_INTEL_FPGA_FME_MGR) += intel-fpga-fme-mgr.o +obj-$(CONFIG_INTEL_FPGA_FME_BRIDGE) += intel-fpga-fme-br.o intel-fpga-pci-objs := intel-pcie.o intel-feature-dev.o intel-fpga-fme-objs := intel-fme-main.o intel-fme-pr.o diff --git a/drivers/fpga/intel-fpga-fme-br.c b/drivers/fpga/intel-fpga-fme-br.c new file mode 100644 index 0000000..9b922d2 --- /dev/null +++ b/drivers/fpga/intel-fpga-fme-br.c @@ -0,0 +1,77 @@ +/* + * FPGA Bridge Driver for Intel FPGA Management Engine (FME) + * + * Copyright (C) 2017 Intel Corporation, Inc. + * + * Authors: + * Wu Hao + * Joseph Grecco + * Enno Luebbers + * Tim Whisonant + * Ananda Ravuri + * Henry Mitchel + * + * This work is licensed under the terms of the GNU GPL version 2. See + * the COPYING file in the top-level directory. + */ + +#include +#include + +#include "intel-feature-dev.h" +#include "intel-fme.h" + +static int fme_bridge_enable_set(struct fpga_bridge *bridge, bool enable) +{ + struct fme_br_pdata *pdata = bridge->priv; + int ret = 0; + + if (enable) + fpga_port_enable(pdata->port); + else + ret = fpga_port_disable(pdata->port); + + return ret; +} + +static const struct fpga_bridge_ops fme_bridge_ops = { + .enable_set = fme_bridge_enable_set, +}; + +static int fme_br_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct fme_br_pdata *pdata = dev_get_platdata(dev); + int ret; + + ret = fpga_bridge_register(dev, "Intel FPGA FME Bridge", + &fme_bridge_ops, pdata); + if (ret) + dev_err(dev, "unable to register FPGA Bridge\n"); + + dev_dbg(dev, "Intel FME FPGA Bridge probed\n"); + + return ret; +} + +static int fme_br_remove(struct platform_device *pdev) +{ + fpga_bridge_unregister(&pdev->dev); + + return 0; +} + +static struct platform_driver fme_br_driver = { + .driver = { + .name = INTEL_FPGA_FME_BRIDGE, + }, + .probe = fme_br_probe, + .remove = fme_br_remove, +}; + +module_platform_driver(fme_br_driver); + +MODULE_DESCRIPTION("FPGA Bridge for Intel FPGA Management Engine"); +MODULE_AUTHOR("Intel Corporation"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:intel-fpga-fme-bridge"); -- 1.8.3.1