1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2015, Google, Inc
4 * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
5 */
6
7 #include <common.h>
8 #include <dm.h>
9 #include <errno.h>
10 #include <malloc.h>
11 #include <mapmem.h>
12 #include <sdhci.h>
13 #include <asm/pci.h>
14
15 struct pci_mmc_plat {
16 struct mmc_config cfg;
17 struct mmc mmc;
18 };
19
20 struct pci_mmc_priv {
21 struct sdhci_host host;
22 void *base;
23 };
24
pci_mmc_probe(struct udevice * dev)25 static int pci_mmc_probe(struct udevice *dev)
26 {
27 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
28 struct pci_mmc_plat *plat = dev_get_platdata(dev);
29 struct pci_mmc_priv *priv = dev_get_priv(dev);
30 struct sdhci_host *host = &priv->host;
31 int ret;
32
33 host->ioaddr = (void *)dm_pci_map_bar(dev, PCI_BASE_ADDRESS_0,
34 PCI_REGION_MEM);
35 host->name = dev->name;
36 ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0);
37 if (ret)
38 return ret;
39 host->mmc = &plat->mmc;
40 host->mmc->priv = &priv->host;
41 host->mmc->dev = dev;
42 upriv->mmc = host->mmc;
43
44 return sdhci_probe(dev);
45 }
46
pci_mmc_bind(struct udevice * dev)47 static int pci_mmc_bind(struct udevice *dev)
48 {
49 struct pci_mmc_plat *plat = dev_get_platdata(dev);
50
51 return sdhci_bind(dev, &plat->mmc, &plat->cfg);
52 }
53
54 U_BOOT_DRIVER(pci_mmc) = {
55 .name = "pci_mmc",
56 .id = UCLASS_MMC,
57 .bind = pci_mmc_bind,
58 .probe = pci_mmc_probe,
59 .ops = &sdhci_ops,
60 .priv_auto_alloc_size = sizeof(struct pci_mmc_priv),
61 .platdata_auto_alloc_size = sizeof(struct pci_mmc_plat),
62 };
63
64 static struct pci_device_id mmc_supported[] = {
65 { PCI_DEVICE_CLASS(PCI_CLASS_SYSTEM_SDHCI << 8, 0xffff00) },
66 {},
67 };
68
69 U_BOOT_PCI_DEVICE(pci_mmc, mmc_supported);
70