blob: 4c33356b9fccd9caa1ef9e9456427847fe6ec3ab [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Felipe Balbi83b32482017-02-20 14:24:14 +03002/*
3 * Copyright (c) 2017 Intel Corporation
Felipe Balbi83b32482017-02-20 14:24:14 +03004 */
5#include <common.h>
6#include <dm.h>
7#include <dm/device.h>
8#include <linux/io.h>
9#include <linux/sizes.h>
10#include <malloc.h>
11#include <mmc.h>
12#include <sdhci.h>
13
14#define SDHCI_TANGIER_FMAX 200000000
15#define SDHCI_TANGIER_FMIN 400000
16
17struct sdhci_tangier_plat {
18 struct mmc_config cfg;
19 struct mmc mmc;
20 void __iomem *ioaddr;
21};
22
23static int sdhci_tangier_bind(struct udevice *dev)
24{
25 struct sdhci_tangier_plat *plat = dev_get_platdata(dev);
26
27 return sdhci_bind(dev, &plat->mmc, &plat->cfg);
28}
29
30static int sdhci_tangier_probe(struct udevice *dev)
31{
32 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
33 struct sdhci_tangier_plat *plat = dev_get_platdata(dev);
34 struct sdhci_host *host = dev_get_priv(dev);
35 fdt_addr_t base;
36 int ret;
37
Simon Glassa821c4a2017-05-17 17:18:05 -060038 base = devfdt_get_addr(dev);
Felipe Balbi83b32482017-02-20 14:24:14 +030039 if (base == FDT_ADDR_T_NONE)
40 return -EINVAL;
41
42 plat->ioaddr = devm_ioremap(dev, base, SZ_1K);
43 if (!plat->ioaddr)
44 return -ENOMEM;
45
46 host->name = dev->name;
47 host->ioaddr = plat->ioaddr;
48 host->quirks = SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_BROKEN_VOLTAGE |
49 SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_WAIT_SEND_CMD;
50
51 /* MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195 */
52 host->voltages = MMC_VDD_165_195;
53
54 ret = sdhci_setup_cfg(&plat->cfg, host, SDHCI_TANGIER_FMAX,
55 SDHCI_TANGIER_FMIN);
56 if (ret)
57 return ret;
58
59 upriv->mmc = &plat->mmc;
60 host->mmc = &plat->mmc;
61 host->mmc->priv = host;
62
63 return sdhci_probe(dev);
64}
65
66static const struct udevice_id sdhci_tangier_match[] = {
67 { .compatible = "intel,sdhci-tangier" },
68 { /* sentinel */ }
69};
70
71U_BOOT_DRIVER(sdhci_tangier) = {
72 .name = "sdhci-tangier",
73 .id = UCLASS_MMC,
74 .of_match = sdhci_tangier_match,
75 .bind = sdhci_tangier_bind,
76 .probe = sdhci_tangier_probe,
77 .ops = &sdhci_ops,
78 .priv_auto_alloc_size = sizeof(struct sdhci_host),
79 .platdata_auto_alloc_size = sizeof(struct sdhci_tangier_plat),
80};