xref: /openbmc/u-boot/drivers/mmc/pci_mmc.c (revision d4a9b17d)
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 		 int num_ids)
16 {
17 	struct sdhci_host *mmc_host;
18 	pci_dev_t devbusfn;
19 	u32 iobase;
20 	int ret;
21 	int i;
22 
23 	for (i = 0; i < num_ids; i++) {
24 		devbusfn = pci_find_devices(mmc_supported, i);
25 		if (devbusfn == -1)
26 			return -ENODEV;
27 
28 		mmc_host = malloc(sizeof(struct sdhci_host));
29 		if (!mmc_host)
30 			return -ENOMEM;
31 
32 		mmc_host->name = (char *)name;
33 		pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, &iobase);
34 		mmc_host->ioaddr = (void *)iobase;
35 		mmc_host->quirks = 0;
36 		ret = add_sdhci(mmc_host, 0, 0);
37 		if (ret)
38 			return ret;
39 	}
40 
41 	return 0;
42 }
43