blob: bafe85bf644443970e37161e5b6f3f2dc4c52dac [file] [log] [blame]
Felipe Balbi83b32482017-02-20 14:24:14 +03001/*
2 * Copyright (c) 2017 Intel Corporation
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6#include <common.h>
7#include <dm.h>
8#include <dm/device.h>
9#include <linux/io.h>
10#include <linux/sizes.h>
11#include <malloc.h>
12#include <mmc.h>
13#include <sdhci.h>
14
15#define SDHCI_TANGIER_FMAX 200000000
16#define SDHCI_TANGIER_FMIN 400000
17
18struct sdhci_tangier_plat {
19 struct mmc_config cfg;
20 struct mmc mmc;
21 void __iomem *ioaddr;
22};
23
24static int sdhci_tangier_bind(struct udevice *dev)
25{
26 struct sdhci_tangier_plat *plat = dev_get_platdata(dev);
27
28 return sdhci_bind(dev, &plat->mmc, &plat->cfg);
29}
30
31static int sdhci_tangier_probe(struct udevice *dev)
32{
33 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
34 struct sdhci_tangier_plat *plat = dev_get_platdata(dev);
35 struct sdhci_host *host = dev_get_priv(dev);
36 fdt_addr_t base;
37 int ret;
38
Simon Glassa821c4a2017-05-17 17:18:05 -060039 base = devfdt_get_addr(dev);
Felipe Balbi83b32482017-02-20 14:24:14 +030040 if (base == FDT_ADDR_T_NONE)
41 return -EINVAL;
42
43 plat->ioaddr = devm_ioremap(dev, base, SZ_1K);
44 if (!plat->ioaddr)
45 return -ENOMEM;
46
47 host->name = dev->name;
48 host->ioaddr = plat->ioaddr;
49 host->quirks = SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_BROKEN_VOLTAGE |
50 SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_WAIT_SEND_CMD;
51
52 /* MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195 */
53 host->voltages = MMC_VDD_165_195;
54
55 ret = sdhci_setup_cfg(&plat->cfg, host, SDHCI_TANGIER_FMAX,
56 SDHCI_TANGIER_FMIN);
57 if (ret)
58 return ret;
59
60 upriv->mmc = &plat->mmc;
61 host->mmc = &plat->mmc;
62 host->mmc->priv = host;
63
64 return sdhci_probe(dev);
65}
66
67static const struct udevice_id sdhci_tangier_match[] = {
68 { .compatible = "intel,sdhci-tangier" },
69 { /* sentinel */ }
70};
71
72U_BOOT_DRIVER(sdhci_tangier) = {
73 .name = "sdhci-tangier",
74 .id = UCLASS_MMC,
75 .of_match = sdhci_tangier_match,
76 .bind = sdhci_tangier_bind,
77 .probe = sdhci_tangier_probe,
78 .ops = &sdhci_ops,
79 .priv_auto_alloc_size = sizeof(struct sdhci_host),
80 .platdata_auto_alloc_size = sizeof(struct sdhci_tangier_plat),
81};