drivers/mmc/pci_mmc.c

   1 /*
   2  * Copyright (C) 2015, Google, Inc
   3  * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <errno.h>
  10 #include <malloc.h>
  11 #include <sdhci.h>
  12 #include <asm/pci.h>
  13
  14 int pci_mmc_init(const char *name, struct pci_device_id *mmc_supported)
  15 {
  16         struct sdhci_host *mmc_host;
  17         u32 iobase;
  18         int ret;
  19         int i;
  20
  21         for (i = 0; ; i++) {
  22                 struct udevice *dev;
  23
  24                 ret = pci_find_device_id(mmc_supported, i, &dev);
  25                 if (ret)
  26                         return ret;
  27                 mmc_host = malloc(sizeof(struct sdhci_host));
  28                 if (!mmc_host)
  29                         return -ENOMEM;
  30
  31                 mmc_host->name = name;
  32                 dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &iobase);
  33                 mmc_host->ioaddr = (void *)(ulong)iobase;
  34                 mmc_host->quirks = 0;
  35                 mmc_host->max_clk = 0;
  36                 ret = add_sdhci(mmc_host, 0, 0);
  37                 if (ret)
  38                         return ret;
  39         }
  40
  41         return 0;
  42 }