cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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xillybus_of.c (1992B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * linux/drivers/misc/xillybus_of.c
      4 *
      5 * Copyright 2011 Xillybus Ltd, http://xillybus.com
      6 *
      7 * Driver for the Xillybus FPGA/host framework using Open Firmware.
      8 */
      9
     10#include <linux/module.h>
     11#include <linux/device.h>
     12#include <linux/slab.h>
     13#include <linux/platform_device.h>
     14#include <linux/of.h>
     15#include <linux/err.h>
     16#include "xillybus.h"
     17
     18MODULE_DESCRIPTION("Xillybus driver for Open Firmware");
     19MODULE_AUTHOR("Eli Billauer, Xillybus Ltd.");
     20MODULE_ALIAS("xillybus_of");
     21MODULE_LICENSE("GPL v2");
     22
     23static const char xillyname[] = "xillybus_of";
     24
     25/* Match table for of_platform binding */
     26static const struct of_device_id xillybus_of_match[] = {
     27	{ .compatible = "xillybus,xillybus-1.00.a", },
     28	{ .compatible = "xlnx,xillybus-1.00.a", }, /* Deprecated */
     29	{}
     30};
     31
     32MODULE_DEVICE_TABLE(of, xillybus_of_match);
     33
     34static int xilly_drv_probe(struct platform_device *op)
     35{
     36	struct device *dev = &op->dev;
     37	struct xilly_endpoint *endpoint;
     38	int rc;
     39	int irq;
     40
     41	endpoint = xillybus_init_endpoint(dev);
     42
     43	if (!endpoint)
     44		return -ENOMEM;
     45
     46	dev_set_drvdata(dev, endpoint);
     47
     48	endpoint->owner = THIS_MODULE;
     49
     50	endpoint->registers = devm_platform_ioremap_resource(op, 0);
     51	if (IS_ERR(endpoint->registers))
     52		return PTR_ERR(endpoint->registers);
     53
     54	irq = platform_get_irq(op, 0);
     55
     56	rc = devm_request_irq(dev, irq, xillybus_isr, 0, xillyname, endpoint);
     57
     58	if (rc) {
     59		dev_err(endpoint->dev,
     60			"Failed to register IRQ handler. Aborting.\n");
     61		return -ENODEV;
     62	}
     63
     64	return xillybus_endpoint_discovery(endpoint);
     65}
     66
     67static int xilly_drv_remove(struct platform_device *op)
     68{
     69	struct device *dev = &op->dev;
     70	struct xilly_endpoint *endpoint = dev_get_drvdata(dev);
     71
     72	xillybus_endpoint_remove(endpoint);
     73
     74	return 0;
     75}
     76
     77static struct platform_driver xillybus_platform_driver = {
     78	.probe = xilly_drv_probe,
     79	.remove = xilly_drv_remove,
     80	.driver = {
     81		.name = xillyname,
     82		.of_match_table = xillybus_of_match,
     83	},
     84};
     85
     86module_platform_driver(xillybus_platform_driver);