// SPDX-License-Identifier: GPL-2.0+

  /*
   * Copyright (C) 2015, Google, Inc
   * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>

   */
  
  #include <common.h>

  #include <dm.h>

  #include <errno.h>
  #include <malloc.h>

  #include <mapmem.h>

  #include <sdhci.h>
  #include <asm/pci.h>

  struct pci_mmc_plat {
  	struct mmc_config cfg;
  	struct mmc mmc;
  };
  
  struct pci_mmc_priv {
  	struct sdhci_host host;
  	void *base;
  };
  
  static int pci_mmc_probe(struct udevice *dev)

  {

  	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
  	struct pci_mmc_plat *plat = dev_get_platdata(dev);
  	struct pci_mmc_priv *priv = dev_get_priv(dev);
  	struct sdhci_host *host = &priv->host;

  	int ret;

  	host->ioaddr = (void *)dm_pci_map_bar(dev, PCI_BASE_ADDRESS_0,
  					      PCI_REGION_MEM);

  	host->name = dev->name;
  	ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0);
  	if (ret)
  		return ret;
  	host->mmc = &plat->mmc;
  	host->mmc->priv = &priv->host;
  	host->mmc->dev = dev;
  	upriv->mmc = host->mmc;
  
  	return sdhci_probe(dev);

  }

  
  static int pci_mmc_bind(struct udevice *dev)
  {
  	struct pci_mmc_plat *plat = dev_get_platdata(dev);
  
  	return sdhci_bind(dev, &plat->mmc, &plat->cfg);
  }
  
  U_BOOT_DRIVER(pci_mmc) = {
  	.name	= "pci_mmc",
  	.id	= UCLASS_MMC,
  	.bind	= pci_mmc_bind,
  	.probe	= pci_mmc_probe,
  	.ops	= &sdhci_ops,
  	.priv_auto_alloc_size = sizeof(struct pci_mmc_priv),
  	.platdata_auto_alloc_size = sizeof(struct pci_mmc_plat),
  };
  
  static struct pci_device_id mmc_supported[] = {

  	{ PCI_DEVICE_CLASS(PCI_CLASS_SYSTEM_SDHCI << 8, 0xffff00) },

  	{},
  };
  
  U_BOOT_PCI_DEVICE(pci_mmc, mmc_supported);