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>
11 #include <dm/device_compat.h>
13 #include <linux/compat.h>
14 #include "mmc_private.h"
16 int dm_mmc_get_b_max(struct udevice *dev, void *dst, lbaint_t blkcnt)
18 struct dm_mmc_ops *ops = mmc_get_ops(dev);
19 struct mmc *mmc = mmc_get_mmc_dev(dev);
22 return ops->get_b_max(dev, dst, blkcnt);
24 return mmc->cfg->b_max;
27 int mmc_get_b_max(struct mmc *mmc, void *dst, lbaint_t blkcnt)
29 return dm_mmc_get_b_max(mmc->dev, dst, blkcnt);
32 int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
33 struct mmc_data *data)
35 struct mmc *mmc = mmc_get_mmc_dev(dev);
36 struct dm_mmc_ops *ops = mmc_get_ops(dev);
39 mmmc_trace_before_send(mmc, cmd);
41 ret = ops->send_cmd(dev, cmd, data);
44 mmmc_trace_after_send(mmc, cmd, ret);
49 int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
51 return dm_mmc_send_cmd(mmc->dev, cmd, data);
54 int dm_mmc_set_ios(struct udevice *dev)
56 struct dm_mmc_ops *ops = mmc_get_ops(dev);
60 return ops->set_ios(dev);
63 int mmc_set_ios(struct mmc *mmc)
65 return dm_mmc_set_ios(mmc->dev);
68 int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us)
70 struct dm_mmc_ops *ops = mmc_get_ops(dev);
74 return ops->wait_dat0(dev, state, timeout_us);
77 int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us)
79 return dm_mmc_wait_dat0(mmc->dev, state, timeout_us);
82 int dm_mmc_get_wp(struct udevice *dev)
84 struct dm_mmc_ops *ops = mmc_get_ops(dev);
88 return ops->get_wp(dev);
91 int mmc_getwp(struct mmc *mmc)
93 return dm_mmc_get_wp(mmc->dev);
96 int dm_mmc_get_cd(struct udevice *dev)
98 struct dm_mmc_ops *ops = mmc_get_ops(dev);
102 return ops->get_cd(dev);
105 int mmc_getcd(struct mmc *mmc)
107 return dm_mmc_get_cd(mmc->dev);
110 #ifdef MMC_SUPPORTS_TUNING
111 int dm_mmc_execute_tuning(struct udevice *dev, uint opcode)
113 struct dm_mmc_ops *ops = mmc_get_ops(dev);
115 if (!ops->execute_tuning)
117 return ops->execute_tuning(dev, opcode);
120 int mmc_execute_tuning(struct mmc *mmc, uint opcode)
122 return dm_mmc_execute_tuning(mmc->dev, opcode);
126 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
127 int dm_mmc_set_enhanced_strobe(struct udevice *dev)
129 struct dm_mmc_ops *ops = mmc_get_ops(dev);
131 if (ops->set_enhanced_strobe)
132 return ops->set_enhanced_strobe(dev);
137 int mmc_set_enhanced_strobe(struct mmc *mmc)
139 return dm_mmc_set_enhanced_strobe(mmc->dev);
143 int dm_mmc_host_power_cycle(struct udevice *dev)
145 struct dm_mmc_ops *ops = mmc_get_ops(dev);
147 if (ops->host_power_cycle)
148 return ops->host_power_cycle(dev);
152 int mmc_host_power_cycle(struct mmc *mmc)
154 return dm_mmc_host_power_cycle(mmc->dev);
157 int dm_mmc_deferred_probe(struct udevice *dev)
159 struct dm_mmc_ops *ops = mmc_get_ops(dev);
161 if (ops->deferred_probe)
162 return ops->deferred_probe(dev);
167 int mmc_deferred_probe(struct mmc *mmc)
169 return dm_mmc_deferred_probe(mmc->dev);
172 int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg)
176 val = dev_read_u32_default(dev, "bus-width", 1);
180 cfg->host_caps |= MMC_MODE_8BIT;
183 cfg->host_caps |= MMC_MODE_4BIT;
186 cfg->host_caps |= MMC_MODE_1BIT;
189 dev_err(dev, "Invalid \"bus-width\" value %u!\n", val);
193 /* f_max is obtained from the optional "max-frequency" property */
194 dev_read_u32(dev, "max-frequency", &cfg->f_max);
196 if (dev_read_bool(dev, "cap-sd-highspeed"))
197 cfg->host_caps |= MMC_CAP(SD_HS);
198 if (dev_read_bool(dev, "cap-mmc-highspeed"))
199 cfg->host_caps |= MMC_CAP(MMC_HS);
200 if (dev_read_bool(dev, "sd-uhs-sdr12"))
201 cfg->host_caps |= MMC_CAP(UHS_SDR12);
202 if (dev_read_bool(dev, "sd-uhs-sdr25"))
203 cfg->host_caps |= MMC_CAP(UHS_SDR25);
204 if (dev_read_bool(dev, "sd-uhs-sdr50"))
205 cfg->host_caps |= MMC_CAP(UHS_SDR50);
206 if (dev_read_bool(dev, "sd-uhs-sdr104"))
207 cfg->host_caps |= MMC_CAP(UHS_SDR104);
208 if (dev_read_bool(dev, "sd-uhs-ddr50"))
209 cfg->host_caps |= MMC_CAP(UHS_DDR50);
210 if (dev_read_bool(dev, "mmc-ddr-1_8v"))
211 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
212 if (dev_read_bool(dev, "mmc-ddr-1_2v"))
213 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
214 if (dev_read_bool(dev, "mmc-hs200-1_8v"))
215 cfg->host_caps |= MMC_CAP(MMC_HS_200);
216 if (dev_read_bool(dev, "mmc-hs200-1_2v"))
217 cfg->host_caps |= MMC_CAP(MMC_HS_200);
218 if (dev_read_bool(dev, "mmc-hs400-1_8v"))
219 cfg->host_caps |= MMC_CAP(MMC_HS_400);
220 if (dev_read_bool(dev, "mmc-hs400-1_2v"))
221 cfg->host_caps |= MMC_CAP(MMC_HS_400);
222 if (dev_read_bool(dev, "mmc-hs400-enhanced-strobe"))
223 cfg->host_caps |= MMC_CAP(MMC_HS_400_ES);
225 if (dev_read_bool(dev, "non-removable")) {
226 cfg->host_caps |= MMC_CAP_NONREMOVABLE;
228 if (dev_read_bool(dev, "cd-inverted"))
229 cfg->host_caps |= MMC_CAP_CD_ACTIVE_HIGH;
230 if (dev_read_bool(dev, "broken-cd"))
231 cfg->host_caps |= MMC_CAP_NEEDS_POLL;
234 if (dev_read_bool(dev, "no-1-8-v")) {
235 cfg->host_caps &= ~(UHS_CAPS | MMC_MODE_HS200 |
236 MMC_MODE_HS400 | MMC_MODE_HS400_ES);
242 struct mmc *mmc_get_mmc_dev(struct udevice *dev)
244 struct mmc_uclass_priv *upriv;
246 if (!device_active(dev))
248 upriv = dev_get_uclass_priv(dev);
252 #if CONFIG_IS_ENABLED(BLK)
253 struct mmc *find_mmc_device(int dev_num)
255 struct udevice *dev, *mmc_dev;
258 ret = blk_find_device(IF_TYPE_MMC, dev_num, &dev);
261 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
262 printf("MMC Device %d not found\n", dev_num);
267 mmc_dev = dev_get_parent(dev);
269 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
274 int get_mmc_num(void)
276 return max((blk_find_max_devnum(IF_TYPE_MMC) + 1), 0);
279 int mmc_get_next_devnum(void)
281 return blk_find_max_devnum(IF_TYPE_MMC);
284 struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
286 struct blk_desc *desc;
289 device_find_first_child(mmc->dev, &dev);
292 desc = dev_get_uclass_platdata(dev);
297 void mmc_do_preinit(void)
303 ret = uclass_get(UCLASS_MMC, &uc);
306 uclass_foreach_dev(dev, uc) {
307 struct mmc *m = mmc_get_mmc_dev(dev);
311 #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
312 mmc_set_preinit(m, 1);
319 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
320 void print_mmc_devices(char separator)
326 for (uclass_first_device(UCLASS_MMC, &dev);
328 uclass_next_device(&dev), first = false) {
329 struct mmc *m = mmc_get_mmc_dev(dev);
332 printf("%c", separator);
333 if (separator != '\n')
337 mmc_type = IS_SD(m) ? "SD" : "eMMC";
341 printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
343 printf(" (%s)", mmc_type);
350 void print_mmc_devices(char separator) { }
353 int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg)
355 struct blk_desc *bdesc;
356 struct udevice *bdev;
357 int ret, devnum = -1;
359 if (!mmc_get_ops(dev))
361 #ifndef CONFIG_SPL_BUILD
362 /* Use the fixed index with aliase node's index */
363 ret = dev_read_alias_seq(dev, &devnum);
364 debug("%s: alias ret=%d, devnum=%d\n", __func__, ret, devnum);
367 ret = blk_create_devicef(dev, "mmc_blk", "blk", IF_TYPE_MMC,
368 devnum, 512, 0, &bdev);
370 debug("Cannot create block device\n");
373 bdesc = dev_get_uclass_platdata(bdev);
377 /* the following chunk was from mmc_register() */
379 /* Setup dsr related values */
381 mmc->dsr = 0xffffffff;
382 /* Setup the universal parts of the block interface just once */
383 bdesc->removable = 1;
385 /* setup initial part type */
386 bdesc->part_type = cfg->part_type;
392 int mmc_unbind(struct udevice *dev)
394 struct udevice *bdev;
396 device_find_first_child(dev, &bdev);
398 device_remove(bdev, DM_REMOVE_NORMAL);
405 static int mmc_select_hwpart(struct udevice *bdev, int hwpart)
407 struct udevice *mmc_dev = dev_get_parent(bdev);
408 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
409 struct blk_desc *desc = dev_get_uclass_platdata(bdev);
412 if (desc->hwpart == hwpart)
415 if (mmc->part_config == MMCPART_NOAVAILABLE)
418 ret = mmc_switch_part(mmc, hwpart);
420 blkcache_invalidate(desc->if_type, desc->devnum);
425 static int mmc_blk_probe(struct udevice *dev)
427 struct udevice *mmc_dev = dev_get_parent(dev);
428 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
429 struct mmc *mmc = upriv->mmc;
434 debug("%s: mmc_init() failed (err=%d)\n", __func__, ret);
441 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
442 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
443 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
444 static int mmc_blk_remove(struct udevice *dev)
446 struct udevice *mmc_dev = dev_get_parent(dev);
447 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
448 struct mmc *mmc = upriv->mmc;
450 return mmc_deinit(mmc);
454 static const struct blk_ops mmc_blk_ops = {
456 #if CONFIG_IS_ENABLED(MMC_WRITE)
460 .select_hwpart = mmc_select_hwpart,
463 U_BOOT_DRIVER(mmc_blk) = {
467 .probe = mmc_blk_probe,
468 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
469 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
470 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
471 .remove = mmc_blk_remove,
472 .flags = DM_FLAG_OS_PREPARE,
475 #endif /* CONFIG_BLK */
478 UCLASS_DRIVER(mmc) = {
481 .flags = DM_UC_FLAG_SEQ_ALIAS,
482 .per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv),