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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dw_mmc-pltfm.c (2834B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Synopsys DesignWare Multimedia Card Interface driver
      4 *
      5 * Copyright (C) 2009 NXP Semiconductors
      6 * Copyright (C) 2009, 2010 Imagination Technologies Ltd.
      7 */
      8
      9#include <linux/err.h>
     10#include <linux/interrupt.h>
     11#include <linux/module.h>
     12#include <linux/io.h>
     13#include <linux/irq.h>
     14#include <linux/platform_device.h>
     15#include <linux/pm_runtime.h>
     16#include <linux/slab.h>
     17#include <linux/mmc/host.h>
     18#include <linux/mmc/mmc.h>
     19#include <linux/of.h>
     20
     21#include "dw_mmc.h"
     22#include "dw_mmc-pltfm.h"
     23
     24int dw_mci_pltfm_register(struct platform_device *pdev,
     25			  const struct dw_mci_drv_data *drv_data)
     26{
     27	struct dw_mci *host;
     28	struct resource	*regs;
     29
     30	host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
     31	if (!host)
     32		return -ENOMEM;
     33
     34	host->irq = platform_get_irq(pdev, 0);
     35	if (host->irq < 0)
     36		return host->irq;
     37
     38	host->drv_data = drv_data;
     39	host->dev = &pdev->dev;
     40	host->irq_flags = 0;
     41	host->pdata = pdev->dev.platform_data;
     42
     43	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
     44	host->regs = devm_ioremap_resource(&pdev->dev, regs);
     45	if (IS_ERR(host->regs))
     46		return PTR_ERR(host->regs);
     47
     48	/* Get registers' physical base address */
     49	host->phy_regs = regs->start;
     50
     51	platform_set_drvdata(pdev, host);
     52	return dw_mci_probe(host);
     53}
     54EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);
     55
     56const struct dev_pm_ops dw_mci_pltfm_pmops = {
     57	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
     58				pm_runtime_force_resume)
     59	SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
     60			   dw_mci_runtime_resume,
     61			   NULL)
     62};
     63EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
     64
     65static const struct of_device_id dw_mci_pltfm_match[] = {
     66	{ .compatible = "snps,dw-mshc", },
     67	{ .compatible = "altr,socfpga-dw-mshc", },
     68	{ .compatible = "img,pistachio-dw-mshc", },
     69	{},
     70};
     71MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);
     72
     73static int dw_mci_pltfm_probe(struct platform_device *pdev)
     74{
     75	const struct dw_mci_drv_data *drv_data = NULL;
     76	const struct of_device_id *match;
     77
     78	if (pdev->dev.of_node) {
     79		match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node);
     80		drv_data = match->data;
     81	}
     82
     83	return dw_mci_pltfm_register(pdev, drv_data);
     84}
     85
     86int dw_mci_pltfm_remove(struct platform_device *pdev)
     87{
     88	struct dw_mci *host = platform_get_drvdata(pdev);
     89
     90	dw_mci_remove(host);
     91	return 0;
     92}
     93EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);
     94
     95static struct platform_driver dw_mci_pltfm_driver = {
     96	.probe		= dw_mci_pltfm_probe,
     97	.remove		= dw_mci_pltfm_remove,
     98	.driver		= {
     99		.name		= "dw_mmc",
    100		.probe_type	= PROBE_PREFER_ASYNCHRONOUS,
    101		.of_match_table	= dw_mci_pltfm_match,
    102		.pm		= &dw_mci_pltfm_pmops,
    103	},
    104};
    105
    106module_platform_driver(dw_mci_pltfm_driver);
    107
    108MODULE_DESCRIPTION("DW Multimedia Card Interface driver");
    109MODULE_AUTHOR("NXP Semiconductor VietNam");
    110MODULE_AUTHOR("Imagination Technologies Ltd");
    111MODULE_LICENSE("GPL v2");