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 <dm.h> 10 #include <errno.h> 11 #include <malloc.h> 12 #include <mapmem.h> 13 #include <sdhci.h> 14 #include <asm/pci.h> 15 16 struct pci_mmc_plat { 17 struct mmc_config cfg; 18 struct mmc mmc; 19 }; 20 21 struct pci_mmc_priv { 22 struct sdhci_host host; 23 void *base; 24 }; 25 26 static int pci_mmc_probe(struct udevice *dev) 27 { 28 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); 29 struct pci_mmc_plat *plat = dev_get_platdata(dev); 30 struct pci_mmc_priv *priv = dev_get_priv(dev); 31 struct sdhci_host *host = &priv->host; 32 int ret; 33 34 host->ioaddr = (void *)dm_pci_map_bar(dev, PCI_BASE_ADDRESS_0, 35 PCI_REGION_MEM); 36 host->name = dev->name; 37 ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0); 38 if (ret) 39 return ret; 40 host->mmc = &plat->mmc; 41 host->mmc->priv = &priv->host; 42 host->mmc->dev = dev; 43 upriv->mmc = host->mmc; 44 45 return sdhci_probe(dev); 46 } 47 48 static int pci_mmc_bind(struct udevice *dev) 49 { 50 struct pci_mmc_plat *plat = dev_get_platdata(dev); 51 52 return sdhci_bind(dev, &plat->mmc, &plat->cfg); 53 } 54 55 U_BOOT_DRIVER(pci_mmc) = { 56 .name = "pci_mmc", 57 .id = UCLASS_MMC, 58 .bind = pci_mmc_bind, 59 .probe = pci_mmc_probe, 60 .ops = &sdhci_ops, 61 .priv_auto_alloc_size = sizeof(struct pci_mmc_priv), 62 .platdata_auto_alloc_size = sizeof(struct pci_mmc_plat), 63 }; 64 65 static struct pci_device_id mmc_supported[] = { 66 { PCI_DEVICE_CLASS(PCI_CLASS_SYSTEM_SDHCI << 8, 0xffff00) }, 67 {}, 68 }; 69 70 U_BOOT_PCI_DEVICE(pci_mmc, mmc_supported); 71