1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2015 Google, Inc
5 * Written by Simon Glass <sjg@chromium.org>
12 #include <dm/device-internal.h>
13 #include <dm/device_compat.h>
15 #include <linux/compat.h>
16 #include "mmc_private.h"
18 int dm_mmc_get_b_max(struct udevice *dev, void *dst, lbaint_t blkcnt)
20 struct dm_mmc_ops *ops = mmc_get_ops(dev);
21 struct mmc *mmc = mmc_get_mmc_dev(dev);
24 return ops->get_b_max(dev, dst, blkcnt);
26 return mmc->cfg->b_max;
29 int mmc_get_b_max(struct mmc *mmc, void *dst, lbaint_t blkcnt)
31 return dm_mmc_get_b_max(mmc->dev, dst, blkcnt);
34 int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
35 struct mmc_data *data)
37 struct mmc *mmc = mmc_get_mmc_dev(dev);
38 struct dm_mmc_ops *ops = mmc_get_ops(dev);
41 mmmc_trace_before_send(mmc, cmd);
43 ret = ops->send_cmd(dev, cmd, data);
46 mmmc_trace_after_send(mmc, cmd, ret);
51 int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
53 return dm_mmc_send_cmd(mmc->dev, cmd, data);
56 int dm_mmc_set_ios(struct udevice *dev)
58 struct dm_mmc_ops *ops = mmc_get_ops(dev);
62 return ops->set_ios(dev);
65 int mmc_set_ios(struct mmc *mmc)
67 return dm_mmc_set_ios(mmc->dev);
70 int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us)
72 struct dm_mmc_ops *ops = mmc_get_ops(dev);
76 return ops->wait_dat0(dev, state, timeout_us);
79 int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us)
81 return dm_mmc_wait_dat0(mmc->dev, state, timeout_us);
84 int dm_mmc_get_wp(struct udevice *dev)
86 struct dm_mmc_ops *ops = mmc_get_ops(dev);
90 return ops->get_wp(dev);
93 int mmc_getwp(struct mmc *mmc)
95 return dm_mmc_get_wp(mmc->dev);
98 int dm_mmc_get_cd(struct udevice *dev)
100 struct dm_mmc_ops *ops = mmc_get_ops(dev);
104 return ops->get_cd(dev);
107 int mmc_getcd(struct mmc *mmc)
109 return dm_mmc_get_cd(mmc->dev);
112 #ifdef MMC_SUPPORTS_TUNING
113 int dm_mmc_execute_tuning(struct udevice *dev, uint opcode)
115 struct dm_mmc_ops *ops = mmc_get_ops(dev);
117 if (!ops->execute_tuning)
119 return ops->execute_tuning(dev, opcode);
122 int mmc_execute_tuning(struct mmc *mmc, uint opcode)
124 return dm_mmc_execute_tuning(mmc->dev, opcode);
128 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
129 int dm_mmc_set_enhanced_strobe(struct udevice *dev)
131 struct dm_mmc_ops *ops = mmc_get_ops(dev);
133 if (ops->set_enhanced_strobe)
134 return ops->set_enhanced_strobe(dev);
139 int mmc_set_enhanced_strobe(struct mmc *mmc)
141 return dm_mmc_set_enhanced_strobe(mmc->dev);
145 int dm_mmc_host_power_cycle(struct udevice *dev)
147 struct dm_mmc_ops *ops = mmc_get_ops(dev);
149 if (ops->host_power_cycle)
150 return ops->host_power_cycle(dev);
154 int mmc_host_power_cycle(struct mmc *mmc)
156 return dm_mmc_host_power_cycle(mmc->dev);
159 int dm_mmc_deferred_probe(struct udevice *dev)
161 struct dm_mmc_ops *ops = mmc_get_ops(dev);
163 if (ops->deferred_probe)
164 return ops->deferred_probe(dev);
169 int mmc_deferred_probe(struct mmc *mmc)
171 return dm_mmc_deferred_probe(mmc->dev);
174 int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg)
178 val = dev_read_u32_default(dev, "bus-width", 1);
182 cfg->host_caps |= MMC_MODE_8BIT;
185 cfg->host_caps |= MMC_MODE_4BIT;
188 cfg->host_caps |= MMC_MODE_1BIT;
191 dev_err(dev, "Invalid \"bus-width\" value %u!\n", val);
195 /* f_max is obtained from the optional "max-frequency" property */
196 dev_read_u32(dev, "max-frequency", &cfg->f_max);
198 if (dev_read_bool(dev, "cap-sd-highspeed"))
199 cfg->host_caps |= MMC_CAP(SD_HS);
200 if (dev_read_bool(dev, "cap-mmc-highspeed"))
201 cfg->host_caps |= MMC_CAP(MMC_HS);
202 if (dev_read_bool(dev, "sd-uhs-sdr12"))
203 cfg->host_caps |= MMC_CAP(UHS_SDR12);
204 if (dev_read_bool(dev, "sd-uhs-sdr25"))
205 cfg->host_caps |= MMC_CAP(UHS_SDR25);
206 if (dev_read_bool(dev, "sd-uhs-sdr50"))
207 cfg->host_caps |= MMC_CAP(UHS_SDR50);
208 if (dev_read_bool(dev, "sd-uhs-sdr104"))
209 cfg->host_caps |= MMC_CAP(UHS_SDR104);
210 if (dev_read_bool(dev, "sd-uhs-ddr50"))
211 cfg->host_caps |= MMC_CAP(UHS_DDR50);
212 if (dev_read_bool(dev, "mmc-ddr-1_8v"))
213 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
214 if (dev_read_bool(dev, "mmc-ddr-1_2v"))
215 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
216 if (dev_read_bool(dev, "mmc-hs200-1_8v"))
217 cfg->host_caps |= MMC_CAP(MMC_HS_200);
218 if (dev_read_bool(dev, "mmc-hs200-1_2v"))
219 cfg->host_caps |= MMC_CAP(MMC_HS_200);
220 if (dev_read_bool(dev, "mmc-hs400-1_8v"))
221 cfg->host_caps |= MMC_CAP(MMC_HS_400);
222 if (dev_read_bool(dev, "mmc-hs400-1_2v"))
223 cfg->host_caps |= MMC_CAP(MMC_HS_400);
224 if (dev_read_bool(dev, "mmc-hs400-enhanced-strobe"))
225 cfg->host_caps |= MMC_CAP(MMC_HS_400_ES);
227 if (dev_read_bool(dev, "non-removable")) {
228 cfg->host_caps |= MMC_CAP_NONREMOVABLE;
230 if (dev_read_bool(dev, "cd-inverted"))
231 cfg->host_caps |= MMC_CAP_CD_ACTIVE_HIGH;
232 if (dev_read_bool(dev, "broken-cd"))
233 cfg->host_caps |= MMC_CAP_NEEDS_POLL;
236 if (dev_read_bool(dev, "no-1-8-v")) {
237 cfg->host_caps &= ~(UHS_CAPS | MMC_MODE_HS200 |
238 MMC_MODE_HS400 | MMC_MODE_HS400_ES);
244 struct mmc *mmc_get_mmc_dev(const struct udevice *dev)
246 struct mmc_uclass_priv *upriv;
248 if (!device_active(dev))
250 upriv = dev_get_uclass_priv(dev);
254 #if CONFIG_IS_ENABLED(BLK)
255 struct mmc *find_mmc_device(int dev_num)
257 struct udevice *dev, *mmc_dev;
260 ret = blk_find_device(IF_TYPE_MMC, dev_num, &dev);
263 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
264 printf("MMC Device %d not found\n", dev_num);
269 mmc_dev = dev_get_parent(dev);
271 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
276 int get_mmc_num(void)
278 return max((blk_find_max_devnum(IF_TYPE_MMC) + 1), 0);
281 int mmc_get_next_devnum(void)
283 return blk_find_max_devnum(IF_TYPE_MMC);
286 struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
288 struct blk_desc *desc;
291 device_find_first_child(mmc->dev, &dev);
294 desc = dev_get_uclass_platdata(dev);
299 void mmc_do_preinit(void)
305 ret = uclass_get(UCLASS_MMC, &uc);
308 uclass_foreach_dev(dev, uc) {
309 struct mmc *m = mmc_get_mmc_dev(dev);
318 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
319 void print_mmc_devices(char separator)
325 for (uclass_first_device(UCLASS_MMC, &dev);
327 uclass_next_device(&dev), first = false) {
328 struct mmc *m = mmc_get_mmc_dev(dev);
331 printf("%c", separator);
332 if (separator != '\n')
336 mmc_type = IS_SD(m) ? "SD" : "eMMC";
340 printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
342 printf(" (%s)", mmc_type);
349 void print_mmc_devices(char separator) { }
352 int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg)
354 struct blk_desc *bdesc;
355 struct udevice *bdev;
356 int ret, devnum = -1;
358 if (!mmc_get_ops(dev))
360 #ifndef CONFIG_SPL_BUILD
361 /* Use the fixed index with aliase node's index */
362 ret = dev_read_alias_seq(dev, &devnum);
363 debug("%s: alias ret=%d, devnum=%d\n", __func__, ret, devnum);
366 ret = blk_create_devicef(dev, "mmc_blk", "blk", IF_TYPE_MMC,
367 devnum, 512, 0, &bdev);
369 debug("Cannot create block device\n");
372 bdesc = dev_get_uclass_platdata(bdev);
376 /* the following chunk was from mmc_register() */
378 /* Setup dsr related values */
380 mmc->dsr = 0xffffffff;
381 /* Setup the universal parts of the block interface just once */
382 bdesc->removable = 1;
384 /* setup initial part type */
385 bdesc->part_type = cfg->part_type;
391 int mmc_unbind(struct udevice *dev)
393 struct udevice *bdev;
395 device_find_first_child(dev, &bdev);
397 device_remove(bdev, DM_REMOVE_NORMAL);
404 static int mmc_select_hwpart(struct udevice *bdev, int hwpart)
406 struct udevice *mmc_dev = dev_get_parent(bdev);
407 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
408 struct blk_desc *desc = dev_get_uclass_platdata(bdev);
411 if (desc->hwpart == hwpart)
414 if (mmc->part_config == MMCPART_NOAVAILABLE)
417 ret = mmc_switch_part(mmc, hwpart);
419 blkcache_invalidate(desc->if_type, desc->devnum);
424 static int mmc_blk_probe(struct udevice *dev)
426 struct udevice *mmc_dev = dev_get_parent(dev);
427 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
428 struct mmc *mmc = upriv->mmc;
433 debug("%s: mmc_init() failed (err=%d)\n", __func__, ret);
440 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
441 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
442 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
443 static int mmc_blk_remove(struct udevice *dev)
445 struct udevice *mmc_dev = dev_get_parent(dev);
446 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
447 struct mmc *mmc = upriv->mmc;
449 return mmc_deinit(mmc);
453 static const struct blk_ops mmc_blk_ops = {
455 #if CONFIG_IS_ENABLED(MMC_WRITE)
459 .select_hwpart = mmc_select_hwpart,
462 U_BOOT_DRIVER(mmc_blk) = {
466 .probe = mmc_blk_probe,
467 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
468 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
469 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
470 .remove = mmc_blk_remove,
471 .flags = DM_FLAG_OS_PREPARE,
474 #endif /* CONFIG_BLK */
477 UCLASS_DRIVER(mmc) = {
480 .flags = DM_UC_FLAG_SEQ_ALIAS,
481 .per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv),