1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2017 Intel Corporation
*/
#include <common.h>
#include <dm.h>
#include <dm/device.h>
#include <linux/io.h>
#include <linux/sizes.h>
#include <malloc.h>
#include <mmc.h>
#include <sdhci.h>
#define SDHCI_TANGIER_FMAX 200000000
#define SDHCI_TANGIER_FMIN 400000
struct sdhci_tangier_plat {
struct mmc_config cfg;
struct mmc mmc;
void __iomem *ioaddr;
};
static int sdhci_tangier_bind(struct udevice *dev)
{
struct sdhci_tangier_plat *plat = dev_get_platdata(dev);
return sdhci_bind(dev, &plat->mmc, &plat->cfg);
}
static int sdhci_tangier_probe(struct udevice *dev)
{
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
struct sdhci_tangier_plat *plat = dev_get_platdata(dev);
struct sdhci_host *host = dev_get_priv(dev);
fdt_addr_t base;
int ret;
base = dev_read_addr(dev);
if (base == FDT_ADDR_T_NONE)
return -EINVAL;
plat->ioaddr = devm_ioremap(dev, base, SZ_1K);
if (!plat->ioaddr)
return -ENOMEM;
host->name = dev->name;
host->ioaddr = plat->ioaddr;
host->quirks = SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_BROKEN_VOLTAGE |
SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_WAIT_SEND_CMD;
/* MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195 */
host->voltages = MMC_VDD_165_195;
host->mmc = &plat->mmc;
host->mmc->dev = dev;
ret = sdhci_setup_cfg(&plat->cfg, host, SDHCI_TANGIER_FMAX,
SDHCI_TANGIER_FMIN);
if (ret)
return ret;
upriv->mmc = &plat->mmc;
host->mmc->priv = host;
return sdhci_probe(dev);
}
static const struct udevice_id sdhci_tangier_match[] = {
{ .compatible = "intel,sdhci-tangier" },
{ /* sentinel */ }
};
U_BOOT_DRIVER(sdhci_tangier) = {
.name = "sdhci-tangier",
.id = UCLASS_MMC,
.of_match = sdhci_tangier_match,
.bind = sdhci_tangier_bind,
.probe = sdhci_tangier_probe,
.ops = &sdhci_ops,
.priv_auto_alloc_size = sizeof(struct sdhci_host),
.platdata_auto_alloc_size = sizeof(struct sdhci_tangier_plat),
};
|
