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 u32 ioaddr; 33 int ret; 34 35 dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &ioaddr); 36 host->ioaddr = map_sysmem(ioaddr, 0); 37 host->name = dev->name; 38 ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0); 39 if (ret) 40 return ret; 41 host->mmc = &plat->mmc; 42 host->mmc->priv = &priv->host; 43 host->mmc->dev = dev; 44 upriv->mmc = host->mmc; 45 46 return sdhci_probe(dev); 47 } 48 49 static int pci_mmc_bind(struct udevice *dev) 50 { 51 struct pci_mmc_plat *plat = dev_get_platdata(dev); 52 53 return sdhci_bind(dev, &plat->mmc, &plat->cfg); 54 } 55 56 U_BOOT_DRIVER(pci_mmc) = { 57 .name = "pci_mmc", 58 .id = UCLASS_MMC, 59 .bind = pci_mmc_bind, 60 .probe = pci_mmc_probe, 61 .ops = &sdhci_ops, 62 .priv_auto_alloc_size = sizeof(struct pci_mmc_priv), 63 .platdata_auto_alloc_size = sizeof(struct pci_mmc_plat), 64 }; 65 66 static struct pci_device_id mmc_supported[] = { 67 { PCI_DEVICE_CLASS(PCI_CLASS_SYSTEM_SDHCI << 8, 0xffff00) }, 68 {}, 69 }; 70 71 U_BOOT_PCI_DEVICE(pci_mmc, mmc_supported); 72