sunxi: mmc: group non-DM specific functions
[platform/kernel/u-boot.git] / drivers / mmc / aspeed_sdhci.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2019 IBM Corp.
4  * Eddie James <eajames@linux.ibm.com>
5  */
6
7 #include <common.h>
8 #include <clk.h>
9 #include <dm.h>
10 #include <malloc.h>
11 #include <sdhci.h>
12 #include <linux/err.h>
13 #include <dm/lists.h>
14
15 struct aspeed_sdhci_plat {
16         struct mmc_config cfg;
17         struct mmc mmc;
18 };
19
20 static int aspeed_sdhci_probe(struct udevice *dev)
21 {
22         struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
23         struct aspeed_sdhci_plat *plat = dev_get_plat(dev);
24         struct sdhci_host *host = dev_get_priv(dev);
25         u32 max_clk;
26         struct clk clk;
27         int ret;
28
29         ret = clk_get_by_index(dev, 0, &clk);
30         if (ret) {
31                 debug("%s: clock get failed %d\n", __func__, ret);
32                 return ret;
33         }
34
35         ret = clk_enable(&clk);
36         if (ret) {
37                 debug("%s: clock enable failed %d\n", __func__, ret);
38                 goto free;
39         }
40
41         host->name = dev->name;
42         host->ioaddr = dev_read_addr_ptr(dev);
43
44         max_clk = clk_get_rate(&clk);
45         if (IS_ERR_VALUE(max_clk)) {
46                 ret = max_clk;
47                 debug("%s: clock rate get failed %d\n", __func__, ret);
48                 goto err;
49         }
50
51         host->max_clk = max_clk;
52         host->mmc = &plat->mmc;
53         host->mmc->dev = dev;
54         host->mmc->priv = host;
55         upriv->mmc = host->mmc;
56
57         ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0);
58         if (ret)
59                 goto err;
60
61         ret = sdhci_probe(dev);
62         if (ret)
63                 goto err;
64
65         return 0;
66
67 err:
68         clk_disable(&clk);
69 free:
70         clk_free(&clk);
71         return ret;
72 }
73
74 static int aspeed_sdhci_bind(struct udevice *dev)
75 {
76         struct aspeed_sdhci_plat *plat = dev_get_plat(dev);
77
78         return sdhci_bind(dev, &plat->mmc, &plat->cfg);
79 }
80
81 static const struct udevice_id aspeed_sdhci_ids[] = {
82         { .compatible = "aspeed,ast2400-sdhci" },
83         { .compatible = "aspeed,ast2500-sdhci" },
84         { .compatible = "aspeed,ast2600-sdhci" },
85         { }
86 };
87
88 U_BOOT_DRIVER(aspeed_sdhci_drv) = {
89         .name           = "aspeed_sdhci",
90         .id             = UCLASS_MMC,
91         .of_match       = aspeed_sdhci_ids,
92         .ops            = &sdhci_ops,
93         .bind           = aspeed_sdhci_bind,
94         .probe          = aspeed_sdhci_probe,
95         .priv_auto      = sizeof(struct sdhci_host),
96         .plat_auto      = sizeof(struct aspeed_sdhci_plat),
97 };
98
99
100 static int aspeed_sdc_probe(struct udevice *parent)
101 {
102         struct clk clk;
103         int ret;
104
105         ret = clk_get_by_index(parent, 0, &clk);
106         if (ret) {
107                 debug("%s: clock get failed %d\n", __func__, ret);
108                 return ret;
109         }
110
111         ret = clk_enable(&clk);
112         if (ret) {
113                 debug("%s: clock enable failed %d\n", __func__, ret);
114                 return ret;
115         }
116
117         return 0;
118 }
119
120 static const struct udevice_id aspeed_sdc_ids[] = {
121         { .compatible = "aspeed,ast2400-sd-controller" },
122         { .compatible = "aspeed,ast2500-sd-controller" },
123         { .compatible = "aspeed,ast2600-sd-controller" },
124         { }
125 };
126
127 U_BOOT_DRIVER(aspeed_sdc_drv) = {
128         .name           = "aspeed_sdc",
129         .id             = UCLASS_MISC,
130         .of_match       = aspeed_sdc_ids,
131         .probe          = aspeed_sdc_probe,
132 };