1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (c) 2017 Intel Corporation
4 */
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_plat(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_plat(dev);
34	struct sdhci_host *host = dev_get_priv(dev);
35	fdt_addr_t base;
36	int ret;
37
38	base = dev_read_addr(dev);
39	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	host->mmc = &plat->mmc;
55	host->mmc->dev = dev;
56	ret = sdhci_setup_cfg(&plat->cfg, host, SDHCI_TANGIER_FMAX,
57			SDHCI_TANGIER_FMIN);
58	if (ret)
59		return ret;
60
61	upriv->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	= sizeof(struct sdhci_host),
80	.plat_auto	= sizeof(struct sdhci_tangier_plat),
81};
82