1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2015 Google, Inc
4 * Written by Simon Glass <sjg@chromium.org>
10 #include <dm/device-internal.h>
12 #include "mmc_private.h"
14 int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
15 struct mmc_data *data)
17 struct mmc *mmc = mmc_get_mmc_dev(dev);
18 struct dm_mmc_ops *ops = mmc_get_ops(dev);
21 mmmc_trace_before_send(mmc, cmd);
23 ret = ops->send_cmd(dev, cmd, data);
26 mmmc_trace_after_send(mmc, cmd, ret);
31 int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
33 return dm_mmc_send_cmd(mmc->dev, cmd, data);
36 int dm_mmc_set_ios(struct udevice *dev)
38 struct dm_mmc_ops *ops = mmc_get_ops(dev);
42 return ops->set_ios(dev);
45 int mmc_set_ios(struct mmc *mmc)
47 return dm_mmc_set_ios(mmc->dev);
50 int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout)
52 struct dm_mmc_ops *ops = mmc_get_ops(dev);
56 return ops->wait_dat0(dev, state, timeout);
59 int mmc_wait_dat0(struct mmc *mmc, int state, int timeout)
61 return dm_mmc_wait_dat0(mmc->dev, state, timeout);
64 int dm_mmc_get_wp(struct udevice *dev)
66 struct dm_mmc_ops *ops = mmc_get_ops(dev);
70 return ops->get_wp(dev);
73 int mmc_getwp(struct mmc *mmc)
75 return dm_mmc_get_wp(mmc->dev);
78 int dm_mmc_get_cd(struct udevice *dev)
80 struct dm_mmc_ops *ops = mmc_get_ops(dev);
84 return ops->get_cd(dev);
87 int mmc_getcd(struct mmc *mmc)
89 return dm_mmc_get_cd(mmc->dev);
92 #ifdef MMC_SUPPORTS_TUNING
93 int dm_mmc_execute_tuning(struct udevice *dev, uint opcode)
95 struct dm_mmc_ops *ops = mmc_get_ops(dev);
97 if (!ops->execute_tuning)
99 return ops->execute_tuning(dev, opcode);
102 int mmc_execute_tuning(struct mmc *mmc, uint opcode)
104 return dm_mmc_execute_tuning(mmc->dev, opcode);
108 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
109 int dm_mmc_set_enhanced_strobe(struct udevice *dev)
111 struct dm_mmc_ops *ops = mmc_get_ops(dev);
113 if (ops->set_enhanced_strobe)
114 return ops->set_enhanced_strobe(dev);
119 int mmc_set_enhanced_strobe(struct mmc *mmc)
121 return dm_mmc_set_enhanced_strobe(mmc->dev);
125 int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg)
129 val = dev_read_u32_default(dev, "bus-width", 1);
133 cfg->host_caps |= MMC_MODE_8BIT;
136 cfg->host_caps |= MMC_MODE_4BIT;
139 cfg->host_caps |= MMC_MODE_1BIT;
142 dev_err(dev, "Invalid \"bus-width\" value %u!\n", val);
146 /* f_max is obtained from the optional "max-frequency" property */
147 dev_read_u32(dev, "max-frequency", &cfg->f_max);
149 if (dev_read_bool(dev, "cap-sd-highspeed"))
150 cfg->host_caps |= MMC_CAP(SD_HS);
151 if (dev_read_bool(dev, "cap-mmc-highspeed"))
152 cfg->host_caps |= MMC_CAP(MMC_HS);
153 if (dev_read_bool(dev, "sd-uhs-sdr12"))
154 cfg->host_caps |= MMC_CAP(UHS_SDR12);
155 if (dev_read_bool(dev, "sd-uhs-sdr25"))
156 cfg->host_caps |= MMC_CAP(UHS_SDR25);
157 if (dev_read_bool(dev, "sd-uhs-sdr50"))
158 cfg->host_caps |= MMC_CAP(UHS_SDR50);
159 if (dev_read_bool(dev, "sd-uhs-sdr104"))
160 cfg->host_caps |= MMC_CAP(UHS_SDR104);
161 if (dev_read_bool(dev, "sd-uhs-ddr50"))
162 cfg->host_caps |= MMC_CAP(UHS_DDR50);
163 if (dev_read_bool(dev, "mmc-ddr-1_8v"))
164 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
165 if (dev_read_bool(dev, "mmc-ddr-1_2v"))
166 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
167 if (dev_read_bool(dev, "mmc-hs200-1_8v"))
168 cfg->host_caps |= MMC_CAP(MMC_HS_200);
169 if (dev_read_bool(dev, "mmc-hs200-1_2v"))
170 cfg->host_caps |= MMC_CAP(MMC_HS_200);
171 if (dev_read_bool(dev, "mmc-hs400-1_8v"))
172 cfg->host_caps |= MMC_CAP(MMC_HS_400);
173 if (dev_read_bool(dev, "mmc-hs400-1_2v"))
174 cfg->host_caps |= MMC_CAP(MMC_HS_400);
175 if (dev_read_bool(dev, "mmc-hs400-enhanced-strobe"))
176 cfg->host_caps |= MMC_CAP(MMC_HS_400_ES);
178 if (dev_read_bool(dev, "non-removable")) {
179 cfg->host_caps |= MMC_CAP_NONREMOVABLE;
181 if (dev_read_bool(dev, "cd-inverted"))
182 cfg->host_caps |= MMC_CAP_CD_ACTIVE_HIGH;
183 if (dev_read_bool(dev, "broken-cd"))
184 cfg->host_caps |= MMC_CAP_NEEDS_POLL;
187 if (dev_read_bool(dev, "no-1-8-v")) {
188 cfg->host_caps &= ~(UHS_CAPS | MMC_MODE_HS200 |
189 MMC_MODE_HS400 | MMC_MODE_HS400_ES);
195 struct mmc *mmc_get_mmc_dev(struct udevice *dev)
197 struct mmc_uclass_priv *upriv;
199 if (!device_active(dev))
201 upriv = dev_get_uclass_priv(dev);
205 #if CONFIG_IS_ENABLED(BLK)
206 struct mmc *find_mmc_device(int dev_num)
208 struct udevice *dev, *mmc_dev;
211 ret = blk_find_device(IF_TYPE_MMC, dev_num, &dev);
214 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
215 printf("MMC Device %d not found\n", dev_num);
220 mmc_dev = dev_get_parent(dev);
222 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
227 int get_mmc_num(void)
229 return max((blk_find_max_devnum(IF_TYPE_MMC) + 1), 0);
232 int mmc_get_next_devnum(void)
234 return blk_find_max_devnum(IF_TYPE_MMC);
237 struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
239 struct blk_desc *desc;
242 device_find_first_child(mmc->dev, &dev);
245 desc = dev_get_uclass_platdata(dev);
250 void mmc_do_preinit(void)
256 ret = uclass_get(UCLASS_MMC, &uc);
259 uclass_foreach_dev(dev, uc) {
260 struct mmc *m = mmc_get_mmc_dev(dev);
264 #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
265 mmc_set_preinit(m, 1);
272 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
273 void print_mmc_devices(char separator)
279 for (uclass_first_device(UCLASS_MMC, &dev);
281 uclass_next_device(&dev), first = false) {
282 struct mmc *m = mmc_get_mmc_dev(dev);
285 printf("%c", separator);
286 if (separator != '\n')
290 mmc_type = IS_SD(m) ? "SD" : "eMMC";
294 printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
296 printf(" (%s)", mmc_type);
303 void print_mmc_devices(char separator) { }
306 int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg)
308 struct blk_desc *bdesc;
309 struct udevice *bdev;
310 int ret, devnum = -1;
312 if (!mmc_get_ops(dev))
314 #ifndef CONFIG_SPL_BUILD
315 /* Use the fixed index with aliase node's index */
316 ret = dev_read_alias_seq(dev, &devnum);
317 debug("%s: alias ret=%d, devnum=%d\n", __func__, ret, devnum);
320 ret = blk_create_devicef(dev, "mmc_blk", "blk", IF_TYPE_MMC,
321 devnum, 512, 0, &bdev);
323 debug("Cannot create block device\n");
326 bdesc = dev_get_uclass_platdata(bdev);
330 /* the following chunk was from mmc_register() */
332 /* Setup dsr related values */
334 mmc->dsr = 0xffffffff;
335 /* Setup the universal parts of the block interface just once */
336 bdesc->removable = 1;
338 /* setup initial part type */
339 bdesc->part_type = cfg->part_type;
345 int mmc_unbind(struct udevice *dev)
347 struct udevice *bdev;
349 device_find_first_child(dev, &bdev);
351 device_remove(bdev, DM_REMOVE_NORMAL);
358 static int mmc_select_hwpart(struct udevice *bdev, int hwpart)
360 struct udevice *mmc_dev = dev_get_parent(bdev);
361 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
362 struct blk_desc *desc = dev_get_uclass_platdata(bdev);
364 if (desc->hwpart == hwpart)
367 if (mmc->part_config == MMCPART_NOAVAILABLE)
370 return mmc_switch_part(mmc, hwpart);
373 static int mmc_blk_probe(struct udevice *dev)
375 struct udevice *mmc_dev = dev_get_parent(dev);
376 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
377 struct mmc *mmc = upriv->mmc;
382 debug("%s: mmc_init() failed (err=%d)\n", __func__, ret);
389 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
390 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
391 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
392 static int mmc_blk_remove(struct udevice *dev)
394 struct udevice *mmc_dev = dev_get_parent(dev);
395 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
396 struct mmc *mmc = upriv->mmc;
398 return mmc_deinit(mmc);
402 static const struct blk_ops mmc_blk_ops = {
404 #if CONFIG_IS_ENABLED(MMC_WRITE)
408 .select_hwpart = mmc_select_hwpart,
411 U_BOOT_DRIVER(mmc_blk) = {
415 .probe = mmc_blk_probe,
416 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
417 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
418 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
419 .remove = mmc_blk_remove,
420 .flags = DM_FLAG_OS_PREPARE,
423 #endif /* CONFIG_BLK */
425 U_BOOT_DRIVER(mmc) = {
430 UCLASS_DRIVER(mmc) = {
433 .flags = DM_UC_FLAG_SEQ_ALIAS,
434 .per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv),