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Simon Glasse7ecf7c2015-06-23 15:38:48 -06001/*
2 * Copyright (C) 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8#include <common.h>
9#include <mmc.h>
10#include <dm.h>
Simon Glasseede8972016-06-12 23:30:16 -060011#include <dm/device-internal.h>
Simon Glasse7ecf7c2015-06-23 15:38:48 -060012#include <dm/lists.h>
13#include <dm/root.h>
Simon Glasseede8972016-06-12 23:30:16 -060014#include "mmc_private.h"
Simon Glasse7ecf7c2015-06-23 15:38:48 -060015
Jaehoon Chung02ad33a2017-02-02 13:41:14 +090016DECLARE_GLOBAL_DATA_PTR;
17
Simon Glass8ca51e52016-06-12 23:30:22 -060018#ifdef CONFIG_DM_MMC_OPS
19int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
20 struct mmc_data *data)
21{
22 struct mmc *mmc = mmc_get_mmc_dev(dev);
23 struct dm_mmc_ops *ops = mmc_get_ops(dev);
24 int ret;
25
26 mmmc_trace_before_send(mmc, cmd);
27 if (ops->send_cmd)
28 ret = ops->send_cmd(dev, cmd, data);
29 else
30 ret = -ENOSYS;
31 mmmc_trace_after_send(mmc, cmd, ret);
32
33 return ret;
34}
35
36int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
37{
38 return dm_mmc_send_cmd(mmc->dev, cmd, data);
39}
40
41int dm_mmc_set_ios(struct udevice *dev)
42{
43 struct dm_mmc_ops *ops = mmc_get_ops(dev);
44
45 if (!ops->set_ios)
46 return -ENOSYS;
47 return ops->set_ios(dev);
48}
49
50int mmc_set_ios(struct mmc *mmc)
51{
52 return dm_mmc_set_ios(mmc->dev);
53}
54
55int dm_mmc_get_wp(struct udevice *dev)
56{
57 struct dm_mmc_ops *ops = mmc_get_ops(dev);
58
59 if (!ops->get_wp)
60 return -ENOSYS;
61 return ops->get_wp(dev);
62}
63
64int mmc_getwp(struct mmc *mmc)
65{
66 return dm_mmc_get_wp(mmc->dev);
67}
68
69int dm_mmc_get_cd(struct udevice *dev)
70{
71 struct dm_mmc_ops *ops = mmc_get_ops(dev);
72
73 if (!ops->get_cd)
74 return -ENOSYS;
75 return ops->get_cd(dev);
76}
77
78int mmc_getcd(struct mmc *mmc)
79{
80 return dm_mmc_get_cd(mmc->dev);
81}
82#endif
83
Simon Glasse7ecf7c2015-06-23 15:38:48 -060084struct mmc *mmc_get_mmc_dev(struct udevice *dev)
85{
86 struct mmc_uclass_priv *upriv;
87
88 if (!device_active(dev))
89 return NULL;
90 upriv = dev_get_uclass_priv(dev);
91 return upriv->mmc;
92}
93
Simon Glass8ef761e2016-05-01 13:52:39 -060094#ifdef CONFIG_BLK
95struct mmc *find_mmc_device(int dev_num)
96{
97 struct udevice *dev, *mmc_dev;
98 int ret;
99
Simon Glass97525642017-05-27 11:37:19 -0600100 ret = blk_find_device(IF_TYPE_MMC, dev_num, &dev);
Simon Glass8ef761e2016-05-01 13:52:39 -0600101
102 if (ret) {
103#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
104 printf("MMC Device %d not found\n", dev_num);
105#endif
106 return NULL;
107 }
108
109 mmc_dev = dev_get_parent(dev);
110
Simon Glass97525642017-05-27 11:37:19 -0600111 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
112
113 return mmc;
Simon Glass8ef761e2016-05-01 13:52:39 -0600114}
115
116int get_mmc_num(void)
117{
Kever Yang46683f32016-07-22 17:22:50 +0800118 return max((blk_find_max_devnum(IF_TYPE_MMC) + 1), 0);
Simon Glass8ef761e2016-05-01 13:52:39 -0600119}
120
121int mmc_get_next_devnum(void)
122{
Masahiro Yamadadd399cb2016-10-14 00:13:18 +0900123 return blk_find_max_devnum(IF_TYPE_MMC);
Simon Glass8ef761e2016-05-01 13:52:39 -0600124}
125
126struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
127{
128 struct blk_desc *desc;
129 struct udevice *dev;
130
131 device_find_first_child(mmc->dev, &dev);
132 if (!dev)
133 return NULL;
134 desc = dev_get_uclass_platdata(dev);
135
136 return desc;
137}
138
139void mmc_do_preinit(void)
140{
141 struct udevice *dev;
142 struct uclass *uc;
143 int ret;
144
145 ret = uclass_get(UCLASS_MMC, &uc);
146 if (ret)
147 return;
148 uclass_foreach_dev(dev, uc) {
149 struct mmc *m = mmc_get_mmc_dev(dev);
150
151 if (!m)
152 continue;
153#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
154 mmc_set_preinit(m, 1);
155#endif
156 if (m->preinit)
157 mmc_start_init(m);
158 }
159}
160
161#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
162void print_mmc_devices(char separator)
163{
164 struct udevice *dev;
165 char *mmc_type;
166 bool first = true;
167
168 for (uclass_first_device(UCLASS_MMC, &dev);
169 dev;
Xu Ziyuan1bd4f922016-07-23 11:11:22 +0800170 uclass_next_device(&dev), first = false) {
Simon Glass8ef761e2016-05-01 13:52:39 -0600171 struct mmc *m = mmc_get_mmc_dev(dev);
172
173 if (!first) {
174 printf("%c", separator);
175 if (separator != '\n')
176 puts(" ");
177 }
178 if (m->has_init)
179 mmc_type = IS_SD(m) ? "SD" : "eMMC";
180 else
181 mmc_type = NULL;
182
183 printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
184 if (mmc_type)
185 printf(" (%s)", mmc_type);
186 }
187
188 printf("\n");
189}
190
191#else
192void print_mmc_devices(char separator) { }
193#endif
Simon Glasseede8972016-06-12 23:30:16 -0600194
195int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg)
196{
197 struct blk_desc *bdesc;
198 struct udevice *bdev;
Jaehoon Chung02ad33a2017-02-02 13:41:14 +0900199 int ret, devnum = -1;
Simon Glasseede8972016-06-12 23:30:16 -0600200
Simon Glass66656022017-04-23 20:02:09 -0600201#ifdef CONFIG_DM_MMC_OPS
202 if (!mmc_get_ops(dev))
203 return -ENOSYS;
204#endif
Jaehoon Chung02ad33a2017-02-02 13:41:14 +0900205#ifndef CONFIG_SPL_BUILD
206 /* Use the fixed index with aliase node's index */
Simon Glass66e0ed52017-05-18 20:09:36 -0600207 ret = dev_read_alias_seq(dev, &devnum);
208 debug("%s: alias ret=%d, devnum=%d\n", __func__, ret, devnum);
Jaehoon Chung02ad33a2017-02-02 13:41:14 +0900209#endif
210
211 ret = blk_create_devicef(dev, "mmc_blk", "blk", IF_TYPE_MMC,
212 devnum, 512, 0, &bdev);
Simon Glasseede8972016-06-12 23:30:16 -0600213 if (ret) {
214 debug("Cannot create block device\n");
215 return ret;
216 }
217 bdesc = dev_get_uclass_platdata(bdev);
218 mmc->cfg = cfg;
219 mmc->priv = dev;
220
221 /* the following chunk was from mmc_register() */
222
223 /* Setup dsr related values */
224 mmc->dsr_imp = 0;
225 mmc->dsr = 0xffffffff;
226 /* Setup the universal parts of the block interface just once */
227 bdesc->removable = 1;
228
229 /* setup initial part type */
230 bdesc->part_type = cfg->part_type;
231 mmc->dev = dev;
232
233 return 0;
234}
235
236int mmc_unbind(struct udevice *dev)
237{
238 struct udevice *bdev;
239
240 device_find_first_child(dev, &bdev);
241 if (bdev) {
Stefan Roese706865a2017-03-20 12:51:48 +0100242 device_remove(bdev, DM_REMOVE_NORMAL);
Simon Glasseede8972016-06-12 23:30:16 -0600243 device_unbind(bdev);
244 }
245
246 return 0;
247}
248
249static int mmc_select_hwpart(struct udevice *bdev, int hwpart)
250{
251 struct udevice *mmc_dev = dev_get_parent(bdev);
252 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
253 struct blk_desc *desc = dev_get_uclass_platdata(bdev);
Simon Glasseede8972016-06-12 23:30:16 -0600254
255 if (desc->hwpart == hwpart)
256 return 0;
257
258 if (mmc->part_config == MMCPART_NOAVAILABLE)
259 return -EMEDIUMTYPE;
260
Masahiro Yamadadd399cb2016-10-14 00:13:18 +0900261 return mmc_switch_part(mmc, hwpart);
Simon Glasseede8972016-06-12 23:30:16 -0600262}
263
Fiach Antawa0269bb2017-01-25 19:00:24 +1000264static int mmc_blk_probe(struct udevice *dev)
265{
Simon Glass854f9a72017-04-23 20:02:10 -0600266 struct udevice *mmc_dev = dev_get_parent(dev);
267 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
268 struct mmc *mmc = upriv->mmc;
269 int ret;
Fiach Antawa0269bb2017-01-25 19:00:24 +1000270
Simon Glass854f9a72017-04-23 20:02:10 -0600271 ret = mmc_init(mmc);
272 if (ret) {
273 debug("%s: mmc_init() failed (err=%d)\n", __func__, ret);
274 return ret;
275 }
276
277 return 0;
Fiach Antawa0269bb2017-01-25 19:00:24 +1000278}
279
Simon Glasseede8972016-06-12 23:30:16 -0600280static const struct blk_ops mmc_blk_ops = {
281 .read = mmc_bread,
282#ifndef CONFIG_SPL_BUILD
283 .write = mmc_bwrite,
Simon Glass561e6242016-10-01 14:43:17 -0600284 .erase = mmc_berase,
Simon Glasseede8972016-06-12 23:30:16 -0600285#endif
286 .select_hwpart = mmc_select_hwpart,
287};
288
289U_BOOT_DRIVER(mmc_blk) = {
290 .name = "mmc_blk",
291 .id = UCLASS_BLK,
292 .ops = &mmc_blk_ops,
Fiach Antawa0269bb2017-01-25 19:00:24 +1000293 .probe = mmc_blk_probe,
Simon Glasseede8972016-06-12 23:30:16 -0600294};
Simon Glass8ef761e2016-05-01 13:52:39 -0600295#endif /* CONFIG_BLK */
296
Simon Glasse7ecf7c2015-06-23 15:38:48 -0600297U_BOOT_DRIVER(mmc) = {
298 .name = "mmc",
299 .id = UCLASS_MMC,
300};
301
302UCLASS_DRIVER(mmc) = {
303 .id = UCLASS_MMC,
304 .name = "mmc",
305 .flags = DM_UC_FLAG_SEQ_ALIAS,
306 .per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv),
307};