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 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
51 int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout)
53 struct dm_mmc_ops *ops = mmc_get_ops(dev);
57 return ops->wait_dat0(dev, state, timeout);
60 int mmc_wait_dat0(struct mmc *mmc, int state, int timeout)
62 return dm_mmc_wait_dat0(mmc->dev, state, timeout);
66 int dm_mmc_get_wp(struct udevice *dev)
68 struct dm_mmc_ops *ops = mmc_get_ops(dev);
72 return ops->get_wp(dev);
75 int mmc_getwp(struct mmc *mmc)
77 return dm_mmc_get_wp(mmc->dev);
80 int dm_mmc_get_cd(struct udevice *dev)
82 struct dm_mmc_ops *ops = mmc_get_ops(dev);
86 return ops->get_cd(dev);
89 int mmc_getcd(struct mmc *mmc)
91 return dm_mmc_get_cd(mmc->dev);
94 #ifdef MMC_SUPPORTS_TUNING
95 int dm_mmc_execute_tuning(struct udevice *dev, uint opcode)
97 struct dm_mmc_ops *ops = mmc_get_ops(dev);
99 if (!ops->execute_tuning)
101 return ops->execute_tuning(dev, opcode);
104 int mmc_execute_tuning(struct mmc *mmc, uint opcode)
106 return dm_mmc_execute_tuning(mmc->dev, opcode);
110 int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg)
114 val = dev_read_u32_default(dev, "bus-width", 1);
118 cfg->host_caps |= MMC_MODE_8BIT;
121 cfg->host_caps |= MMC_MODE_4BIT;
124 cfg->host_caps |= MMC_MODE_1BIT;
127 dev_err(dev, "Invalid \"bus-width\" value %u!\n", val);
131 /* f_max is obtained from the optional "max-frequency" property */
132 dev_read_u32(dev, "max-frequency", &cfg->f_max);
134 if (dev_read_bool(dev, "cap-sd-highspeed"))
135 cfg->host_caps |= MMC_CAP(SD_HS);
136 if (dev_read_bool(dev, "cap-mmc-highspeed"))
137 cfg->host_caps |= MMC_CAP(MMC_HS);
138 if (dev_read_bool(dev, "sd-uhs-sdr12"))
139 cfg->host_caps |= MMC_CAP(UHS_SDR12);
140 if (dev_read_bool(dev, "sd-uhs-sdr25"))
141 cfg->host_caps |= MMC_CAP(UHS_SDR25);
142 if (dev_read_bool(dev, "sd-uhs-sdr50"))
143 cfg->host_caps |= MMC_CAP(UHS_SDR50);
144 if (dev_read_bool(dev, "sd-uhs-sdr104"))
145 cfg->host_caps |= MMC_CAP(UHS_SDR104);
146 if (dev_read_bool(dev, "sd-uhs-ddr50"))
147 cfg->host_caps |= MMC_CAP(UHS_DDR50);
148 if (dev_read_bool(dev, "mmc-ddr-1_8v"))
149 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
150 if (dev_read_bool(dev, "mmc-ddr-1_2v"))
151 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
152 if (dev_read_bool(dev, "mmc-hs200-1_8v"))
153 cfg->host_caps |= MMC_CAP(MMC_HS_200);
154 if (dev_read_bool(dev, "mmc-hs200-1_2v"))
155 cfg->host_caps |= MMC_CAP(MMC_HS_200);
156 if (dev_read_bool(dev, "mmc-hs400-1_8v"))
157 cfg->host_caps |= MMC_CAP(MMC_HS_400);
158 if (dev_read_bool(dev, "mmc-hs400-1_2v"))
159 cfg->host_caps |= MMC_CAP(MMC_HS_400);
161 if (dev_read_bool(dev, "non-removable")) {
162 cfg->host_caps |= MMC_CAP_NONREMOVABLE;
164 if (dev_read_bool(dev, "cd-inverted"))
165 cfg->host_caps |= MMC_CAP_CD_ACTIVE_HIGH;
166 if (dev_read_bool(dev, "broken-cd"))
167 cfg->host_caps |= MMC_CAP_NEEDS_POLL;
173 struct mmc *mmc_get_mmc_dev(struct udevice *dev)
175 struct mmc_uclass_priv *upriv;
177 if (!device_active(dev))
179 upriv = dev_get_uclass_priv(dev);
183 #if CONFIG_IS_ENABLED(BLK)
184 struct mmc *find_mmc_device(int dev_num)
186 struct udevice *dev, *mmc_dev;
189 ret = blk_find_device(IF_TYPE_MMC, dev_num, &dev);
192 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
193 printf("MMC Device %d not found\n", dev_num);
198 mmc_dev = dev_get_parent(dev);
200 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
205 int get_mmc_num(void)
207 return max((blk_find_max_devnum(IF_TYPE_MMC) + 1), 0);
210 int mmc_get_next_devnum(void)
212 return blk_find_max_devnum(IF_TYPE_MMC);
215 struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
217 struct blk_desc *desc;
220 device_find_first_child(mmc->dev, &dev);
223 desc = dev_get_uclass_platdata(dev);
228 void mmc_do_preinit(void)
234 ret = uclass_get(UCLASS_MMC, &uc);
237 uclass_foreach_dev(dev, uc) {
238 struct mmc *m = mmc_get_mmc_dev(dev);
242 #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
243 mmc_set_preinit(m, 1);
250 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
251 void print_mmc_devices(char separator)
257 for (uclass_first_device(UCLASS_MMC, &dev);
259 uclass_next_device(&dev), first = false) {
260 struct mmc *m = mmc_get_mmc_dev(dev);
263 printf("%c", separator);
264 if (separator != '\n')
268 mmc_type = IS_SD(m) ? "SD" : "eMMC";
272 printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
274 printf(" (%s)", mmc_type);
281 void print_mmc_devices(char separator) { }
284 int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg)
286 struct blk_desc *bdesc;
287 struct udevice *bdev;
288 int ret, devnum = -1;
290 if (!mmc_get_ops(dev))
292 #ifndef CONFIG_SPL_BUILD
293 /* Use the fixed index with aliase node's index */
294 ret = dev_read_alias_seq(dev, &devnum);
295 debug("%s: alias ret=%d, devnum=%d\n", __func__, ret, devnum);
298 ret = blk_create_devicef(dev, "mmc_blk", "blk", IF_TYPE_MMC,
299 devnum, 512, 0, &bdev);
301 debug("Cannot create block device\n");
304 bdesc = dev_get_uclass_platdata(bdev);
308 /* the following chunk was from mmc_register() */
310 /* Setup dsr related values */
312 mmc->dsr = 0xffffffff;
313 /* Setup the universal parts of the block interface just once */
314 bdesc->removable = 1;
316 /* setup initial part type */
317 bdesc->part_type = cfg->part_type;
323 int mmc_unbind(struct udevice *dev)
325 struct udevice *bdev;
327 device_find_first_child(dev, &bdev);
329 device_remove(bdev, DM_REMOVE_NORMAL);
336 static int mmc_select_hwpart(struct udevice *bdev, int hwpart)
338 struct udevice *mmc_dev = dev_get_parent(bdev);
339 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
340 struct blk_desc *desc = dev_get_uclass_platdata(bdev);
342 if (desc->hwpart == hwpart)
345 if (mmc->part_config == MMCPART_NOAVAILABLE)
348 return mmc_switch_part(mmc, hwpart);
351 static int mmc_blk_probe(struct udevice *dev)
353 struct udevice *mmc_dev = dev_get_parent(dev);
354 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
355 struct mmc *mmc = upriv->mmc;
360 debug("%s: mmc_init() failed (err=%d)\n", __func__, ret);
367 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
368 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
369 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
370 static int mmc_blk_remove(struct udevice *dev)
372 struct udevice *mmc_dev = dev_get_parent(dev);
373 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
374 struct mmc *mmc = upriv->mmc;
376 return mmc_deinit(mmc);
380 static const struct blk_ops mmc_blk_ops = {
382 #if CONFIG_IS_ENABLED(MMC_WRITE)
386 .select_hwpart = mmc_select_hwpart,
389 U_BOOT_DRIVER(mmc_blk) = {
393 .probe = mmc_blk_probe,
394 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
395 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
396 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
397 .remove = mmc_blk_remove,
398 .flags = DM_FLAG_OS_PREPARE,
401 #endif /* CONFIG_BLK */
403 U_BOOT_DRIVER(mmc) = {
408 UCLASS_DRIVER(mmc) = {
411 .flags = DM_UC_FLAG_SEQ_ALIAS,
412 .per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv),