1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
5 * Texas Instruments' K3 SD Host Controller Interface
12 #include <power-domain.h>
15 #define K3_ARASAN_SDHCI_MIN_FREQ 0
17 struct k3_arasan_sdhci_plat {
18 struct mmc_config cfg;
23 static int k3_arasan_sdhci_probe(struct udevice *dev)
25 struct k3_arasan_sdhci_plat *plat = dev_get_platdata(dev);
26 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
27 struct sdhci_host *host = dev_get_priv(dev);
28 struct power_domain sdhci_pwrdmn;
33 ret = power_domain_get_by_index(dev, &sdhci_pwrdmn, 0);
35 dev_err(dev, "failed to get power domain\n");
39 ret = power_domain_on(&sdhci_pwrdmn);
41 dev_err(dev, "Power domain on failed\n");
45 ret = clk_get_by_index(dev, 0, &clk);
47 dev_err(dev, "failed to get clock\n");
51 clock = clk_get_rate(&clk);
52 if (IS_ERR_VALUE(clock)) {
53 dev_err(dev, "failed to get rate\n");
57 host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD |
58 SDHCI_QUIRK_BROKEN_R1B;
60 host->max_clk = clock;
62 ret = sdhci_setup_cfg(&plat->cfg, host, plat->f_max,
63 K3_ARASAN_SDHCI_MIN_FREQ);
64 host->mmc = &plat->mmc;
67 host->mmc->priv = host;
69 upriv->mmc = host->mmc;
71 return sdhci_probe(dev);
74 static int k3_arasan_sdhci_ofdata_to_platdata(struct udevice *dev)
76 struct k3_arasan_sdhci_plat *plat = dev_get_platdata(dev);
77 struct sdhci_host *host = dev_get_priv(dev);
79 host->name = dev->name;
80 host->ioaddr = (void *)dev_read_addr(dev);
81 host->bus_width = dev_read_u32_default(dev, "bus-width", 4);
82 plat->f_max = dev_read_u32_default(dev, "max-frequency", 0);
87 static int k3_arasan_sdhci_bind(struct udevice *dev)
89 struct k3_arasan_sdhci_plat *plat = dev_get_platdata(dev);
91 return sdhci_bind(dev, &plat->mmc, &plat->cfg);
94 static const struct udevice_id k3_arasan_sdhci_ids[] = {
95 { .compatible = "arasan,sdhci-5.1" },
99 U_BOOT_DRIVER(k3_arasan_sdhci_drv) = {
100 .name = "k3_arasan_sdhci",
102 .of_match = k3_arasan_sdhci_ids,
103 .ofdata_to_platdata = k3_arasan_sdhci_ofdata_to_platdata,
105 .bind = k3_arasan_sdhci_bind,
106 .probe = k3_arasan_sdhci_probe,
107 .priv_auto_alloc_size = sizeof(struct sdhci_host),
108 .platdata_auto_alloc_size = sizeof(struct k3_arasan_sdhci_plat),