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_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
17 struct mmc_data *data)
19 struct mmc *mmc = mmc_get_mmc_dev(dev);
20 struct dm_mmc_ops *ops = mmc_get_ops(dev);
23 mmmc_trace_before_send(mmc, cmd);
25 ret = ops->send_cmd(dev, cmd, data);
28 mmmc_trace_after_send(mmc, cmd, ret);
33 int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
35 return dm_mmc_send_cmd(mmc->dev, cmd, data);
38 int dm_mmc_set_ios(struct udevice *dev)
40 struct dm_mmc_ops *ops = mmc_get_ops(dev);
44 return ops->set_ios(dev);
47 int mmc_set_ios(struct mmc *mmc)
49 return dm_mmc_set_ios(mmc->dev);
52 int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us)
54 struct dm_mmc_ops *ops = mmc_get_ops(dev);
58 return ops->wait_dat0(dev, state, timeout_us);
61 int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us)
63 return dm_mmc_wait_dat0(mmc->dev, state, timeout_us);
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 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
111 int dm_mmc_set_enhanced_strobe(struct udevice *dev)
113 struct dm_mmc_ops *ops = mmc_get_ops(dev);
115 if (ops->set_enhanced_strobe)
116 return ops->set_enhanced_strobe(dev);
121 int mmc_set_enhanced_strobe(struct mmc *mmc)
123 return dm_mmc_set_enhanced_strobe(mmc->dev);
127 int dm_mmc_host_power_cycle(struct udevice *dev)
129 struct dm_mmc_ops *ops = mmc_get_ops(dev);
131 if (ops->host_power_cycle)
132 return ops->host_power_cycle(dev);
136 int mmc_host_power_cycle(struct mmc *mmc)
138 return dm_mmc_host_power_cycle(mmc->dev);
141 int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg)
145 val = dev_read_u32_default(dev, "bus-width", 1);
149 cfg->host_caps |= MMC_MODE_8BIT;
152 cfg->host_caps |= MMC_MODE_4BIT;
155 cfg->host_caps |= MMC_MODE_1BIT;
158 dev_err(dev, "Invalid \"bus-width\" value %u!\n", val);
162 /* f_max is obtained from the optional "max-frequency" property */
163 dev_read_u32(dev, "max-frequency", &cfg->f_max);
165 if (dev_read_bool(dev, "cap-sd-highspeed"))
166 cfg->host_caps |= MMC_CAP(SD_HS);
167 if (dev_read_bool(dev, "cap-mmc-highspeed"))
168 cfg->host_caps |= MMC_CAP(MMC_HS);
169 if (dev_read_bool(dev, "sd-uhs-sdr12"))
170 cfg->host_caps |= MMC_CAP(UHS_SDR12);
171 if (dev_read_bool(dev, "sd-uhs-sdr25"))
172 cfg->host_caps |= MMC_CAP(UHS_SDR25);
173 if (dev_read_bool(dev, "sd-uhs-sdr50"))
174 cfg->host_caps |= MMC_CAP(UHS_SDR50);
175 if (dev_read_bool(dev, "sd-uhs-sdr104"))
176 cfg->host_caps |= MMC_CAP(UHS_SDR104);
177 if (dev_read_bool(dev, "sd-uhs-ddr50"))
178 cfg->host_caps |= MMC_CAP(UHS_DDR50);
179 if (dev_read_bool(dev, "mmc-ddr-1_8v"))
180 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
181 if (dev_read_bool(dev, "mmc-ddr-1_2v"))
182 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
183 if (dev_read_bool(dev, "mmc-hs200-1_8v"))
184 cfg->host_caps |= MMC_CAP(MMC_HS_200);
185 if (dev_read_bool(dev, "mmc-hs200-1_2v"))
186 cfg->host_caps |= MMC_CAP(MMC_HS_200);
187 if (dev_read_bool(dev, "mmc-hs400-1_8v"))
188 cfg->host_caps |= MMC_CAP(MMC_HS_400);
189 if (dev_read_bool(dev, "mmc-hs400-1_2v"))
190 cfg->host_caps |= MMC_CAP(MMC_HS_400);
191 if (dev_read_bool(dev, "mmc-hs400-enhanced-strobe"))
192 cfg->host_caps |= MMC_CAP(MMC_HS_400_ES);
194 if (dev_read_bool(dev, "non-removable")) {
195 cfg->host_caps |= MMC_CAP_NONREMOVABLE;
197 if (dev_read_bool(dev, "cd-inverted"))
198 cfg->host_caps |= MMC_CAP_CD_ACTIVE_HIGH;
199 if (dev_read_bool(dev, "broken-cd"))
200 cfg->host_caps |= MMC_CAP_NEEDS_POLL;
203 if (dev_read_bool(dev, "no-1-8-v")) {
204 cfg->host_caps &= ~(UHS_CAPS | MMC_MODE_HS200 |
205 MMC_MODE_HS400 | MMC_MODE_HS400_ES);
211 struct mmc *mmc_get_mmc_dev(struct udevice *dev)
213 struct mmc_uclass_priv *upriv;
215 if (!device_active(dev))
217 upriv = dev_get_uclass_priv(dev);
221 #if CONFIG_IS_ENABLED(BLK)
222 struct mmc *find_mmc_device(int dev_num)
224 struct udevice *dev, *mmc_dev;
227 ret = blk_find_device(IF_TYPE_MMC, dev_num, &dev);
230 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
231 printf("MMC Device %d not found\n", dev_num);
236 mmc_dev = dev_get_parent(dev);
238 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
243 int get_mmc_num(void)
245 return max((blk_find_max_devnum(IF_TYPE_MMC) + 1), 0);
248 int mmc_get_next_devnum(void)
250 return blk_find_max_devnum(IF_TYPE_MMC);
253 struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
255 struct blk_desc *desc;
258 device_find_first_child(mmc->dev, &dev);
261 desc = dev_get_uclass_platdata(dev);
266 void mmc_do_preinit(void)
272 ret = uclass_get(UCLASS_MMC, &uc);
275 uclass_foreach_dev(dev, uc) {
276 struct mmc *m = mmc_get_mmc_dev(dev);
280 #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
281 mmc_set_preinit(m, 1);
288 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
289 void print_mmc_devices(char separator)
295 for (uclass_first_device(UCLASS_MMC, &dev);
297 uclass_next_device(&dev), first = false) {
298 struct mmc *m = mmc_get_mmc_dev(dev);
301 printf("%c", separator);
302 if (separator != '\n')
306 mmc_type = IS_SD(m) ? "SD" : "eMMC";
310 printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
312 printf(" (%s)", mmc_type);
319 void print_mmc_devices(char separator) { }
322 int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg)
324 struct blk_desc *bdesc;
325 struct udevice *bdev;
326 int ret, devnum = -1;
328 if (!mmc_get_ops(dev))
330 #ifndef CONFIG_SPL_BUILD
331 /* Use the fixed index with aliase node's index */
332 ret = dev_read_alias_seq(dev, &devnum);
333 debug("%s: alias ret=%d, devnum=%d\n", __func__, ret, devnum);
336 ret = blk_create_devicef(dev, "mmc_blk", "blk", IF_TYPE_MMC,
337 devnum, 512, 0, &bdev);
339 debug("Cannot create block device\n");
342 bdesc = dev_get_uclass_platdata(bdev);
346 /* the following chunk was from mmc_register() */
348 /* Setup dsr related values */
350 mmc->dsr = 0xffffffff;
351 /* Setup the universal parts of the block interface just once */
352 bdesc->removable = 1;
354 /* setup initial part type */
355 bdesc->part_type = cfg->part_type;
361 int mmc_unbind(struct udevice *dev)
363 struct udevice *bdev;
365 device_find_first_child(dev, &bdev);
367 device_remove(bdev, DM_REMOVE_NORMAL);
374 static int mmc_select_hwpart(struct udevice *bdev, int hwpart)
376 struct udevice *mmc_dev = dev_get_parent(bdev);
377 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
378 struct blk_desc *desc = dev_get_uclass_platdata(bdev);
381 if (desc->hwpart == hwpart)
384 if (mmc->part_config == MMCPART_NOAVAILABLE)
387 ret = mmc_switch_part(mmc, hwpart);
389 blkcache_invalidate(desc->if_type, desc->devnum);
394 static int mmc_blk_probe(struct udevice *dev)
396 struct udevice *mmc_dev = dev_get_parent(dev);
397 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
398 struct mmc *mmc = upriv->mmc;
403 debug("%s: mmc_init() failed (err=%d)\n", __func__, ret);
410 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
411 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
412 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
413 static int mmc_blk_remove(struct udevice *dev)
415 struct udevice *mmc_dev = dev_get_parent(dev);
416 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
417 struct mmc *mmc = upriv->mmc;
419 return mmc_deinit(mmc);
423 static const struct blk_ops mmc_blk_ops = {
425 #if CONFIG_IS_ENABLED(MMC_WRITE)
429 .select_hwpart = mmc_select_hwpart,
432 U_BOOT_DRIVER(mmc_blk) = {
436 .probe = mmc_blk_probe,
437 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
438 CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
439 CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
440 .remove = mmc_blk_remove,
441 .flags = DM_FLAG_OS_PREPARE,
444 #endif /* CONFIG_BLK */
447 UCLASS_DRIVER(mmc) = {
450 .flags = DM_UC_FLAG_SEQ_ALIAS,
451 .per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv),