drivers/fpga/altera-pr-ip-core-plat.c

   1 /*
   2  * Driver for Altera Partial Reconfiguration IP Core
   3  *
   4  * Copyright (C) 2016-2017 Intel Corporation
   5  *
   6  * Based on socfpga-a10.c Copyright (C) 2015-2016 Altera Corporation
   7  *  by Alan Tull <atull@opensource.altera.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms and conditions of the GNU General Public License,
  11  * version 2, as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope it will be useful, but WITHOUT
  14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  16  * more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along with
  19  * this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21 #include <linux/fpga/altera-pr-ip-core.h>
  22 #include <linux/module.h>
  23 #include <linux/of_device.h>
  24
  25 static int alt_pr_platform_probe(struct platform_device *pdev)
  26 {
  27         struct device *dev = &pdev->dev;
  28         void __iomem *reg_base;
  29         struct resource *res;
  30
  31         /* First mmio base is for register access */
  32         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
  33
  34         reg_base = devm_ioremap_resource(dev, res);
  35
  36         if (IS_ERR(reg_base))
  37                 return PTR_ERR(reg_base);
  38
  39         return alt_pr_register(dev, reg_base);
  40 }
  41
  42 static int alt_pr_platform_remove(struct platform_device *pdev)
  43 {
  44         struct device *dev = &pdev->dev;
  45
  46         return alt_pr_unregister(dev);
  47 }
  48
  49 static const struct of_device_id alt_pr_of_match[] = {
  50         { .compatible = "altr,a10-pr-ip", },
  51         {},
  52 };
  53
  54 MODULE_DEVICE_TABLE(of, alt_pr_of_match);
  55
  56 static struct platform_driver alt_pr_platform_driver = {
  57         .probe = alt_pr_platform_probe,
  58         .remove = alt_pr_platform_remove,
  59         .driver = {
  60                 .name   = "alt_a10_pr_ip",
  61                 .of_match_table = alt_pr_of_match,
  62         },
  63 };
  64
  65 module_platform_driver(alt_pr_platform_driver);
  66 MODULE_AUTHOR("Matthew Gerlach <matthew.gerlach@linux.intel.com>");
  67 MODULE_DESCRIPTION("Altera Partial Reconfiguration IP Platform Driver");
  68 MODULE_LICENSE("GPL v2");