1 /* 2 * (C) Copyright 2013 - 2015 Xilinx, Inc. 3 * 4 * Xilinx Zynq SD Host Controller Interface 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <common.h> 10 #include <dm.h> 11 #include <fdtdec.h> 12 #include <libfdt.h> 13 #include <malloc.h> 14 #include <sdhci.h> 15 16 static int arasan_sdhci_probe(struct udevice *dev) 17 { 18 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); 19 struct sdhci_host *host = dev_get_priv(dev); 20 21 host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD | 22 SDHCI_QUIRK_BROKEN_R1B; 23 host->version = sdhci_readw(host, SDHCI_HOST_VERSION); 24 25 add_sdhci(host, CONFIG_ZYNQ_SDHCI_MAX_FREQ, 0); 26 27 upriv->mmc = host->mmc; 28 29 return 0; 30 } 31 32 static int arasan_sdhci_ofdata_to_platdata(struct udevice *dev) 33 { 34 struct sdhci_host *host = dev_get_priv(dev); 35 36 host->name = (char *)dev->name; 37 host->ioaddr = (void *)dev_get_addr(dev); 38 39 return 0; 40 } 41 42 static const struct udevice_id arasan_sdhci_ids[] = { 43 { .compatible = "arasan,sdhci-8.9a" }, 44 { } 45 }; 46 47 U_BOOT_DRIVER(arasan_sdhci_drv) = { 48 .name = "arasan_sdhci", 49 .id = UCLASS_MMC, 50 .of_match = arasan_sdhci_ids, 51 .ofdata_to_platdata = arasan_sdhci_ofdata_to_platdata, 52 .probe = arasan_sdhci_probe, 53 .priv_auto_alloc_size = sizeof(struct sdhci_host), 54 }; 55