2 * Copyright (C) 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
11 #include <dm/device-internal.h>
13 #include "mmc_private.h"
15 DECLARE_GLOBAL_DATA_PTR;
17 int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
18 struct mmc_data *data)
20 struct mmc *mmc = mmc_get_mmc_dev(dev);
21 struct dm_mmc_ops *ops = mmc_get_ops(dev);
24 mmmc_trace_before_send(mmc, cmd);
26 ret = ops->send_cmd(dev, cmd, data);
29 mmmc_trace_after_send(mmc, cmd, ret);
34 int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
36 return dm_mmc_send_cmd(mmc->dev, cmd, data);
39 int dm_mmc_set_ios(struct udevice *dev)
41 struct dm_mmc_ops *ops = mmc_get_ops(dev);
45 return ops->set_ios(dev);
48 int mmc_set_ios(struct mmc *mmc)
50 return dm_mmc_set_ios(mmc->dev);
53 void dm_mmc_send_init_stream(struct udevice *dev)
55 struct dm_mmc_ops *ops = mmc_get_ops(dev);
57 if (ops->send_init_stream)
58 ops->send_init_stream(dev);
61 void mmc_send_init_stream(struct mmc *mmc)
63 dm_mmc_send_init_stream(mmc->dev);
66 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
67 int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout)
69 struct dm_mmc_ops *ops = mmc_get_ops(dev);
73 return ops->wait_dat0(dev, state, timeout);
76 int mmc_wait_dat0(struct mmc *mmc, int state, int timeout)
78 return dm_mmc_wait_dat0(mmc->dev, state, timeout);
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 int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg)
130 val = dev_read_u32_default(dev, "bus-width", 1);
134 cfg->host_caps |= MMC_MODE_8BIT;
137 cfg->host_caps |= MMC_MODE_4BIT;
140 cfg->host_caps |= MMC_MODE_1BIT;
143 dev_err(dev, "Invalid \"bus-width\" value %u!\n", val);
147 /* f_max is obtained from the optional "max-frequency" property */
148 dev_read_u32(dev, "max-frequency", &cfg->f_max);
150 if (dev_read_bool(dev, "cap-sd-highspeed"))
151 cfg->host_caps |= MMC_CAP(SD_HS);
152 if (dev_read_bool(dev, "cap-mmc-highspeed"))
153 cfg->host_caps |= MMC_CAP(MMC_HS);
154 if (dev_read_bool(dev, "sd-uhs-sdr12"))
155 cfg->host_caps |= MMC_CAP(UHS_SDR12);
156 if (dev_read_bool(dev, "sd-uhs-sdr25"))
157 cfg->host_caps |= MMC_CAP(UHS_SDR25);
158 if (dev_read_bool(dev, "sd-uhs-sdr50"))
159 cfg->host_caps |= MMC_CAP(UHS_SDR50);
160 if (dev_read_bool(dev, "sd-uhs-sdr104"))
161 cfg->host_caps |= MMC_CAP(UHS_SDR104);
162 if (dev_read_bool(dev, "sd-uhs-ddr50"))
163 cfg->host_caps |= MMC_CAP(UHS_DDR50);
164 if (dev_read_bool(dev, "mmc-ddr-1_8v"))
165 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
166 if (dev_read_bool(dev, "mmc-ddr-1_2v"))
167 cfg->host_caps |= MMC_CAP(MMC_DDR_52);
168 if (dev_read_bool(dev, "mmc-hs200-1_8v"))
169 cfg->host_caps |= MMC_CAP(MMC_HS_200);
170 if (dev_read_bool(dev, "mmc-hs200-1_2v"))
171 cfg->host_caps |= MMC_CAP(MMC_HS_200);
176 struct mmc *mmc_get_mmc_dev(struct udevice *dev)
178 struct mmc_uclass_priv *upriv;
180 if (!device_active(dev))
182 upriv = dev_get_uclass_priv(dev);
186 #if CONFIG_IS_ENABLED(BLK)
187 struct mmc *find_mmc_device(int dev_num)
189 struct udevice *dev, *mmc_dev;
192 ret = blk_find_device(IF_TYPE_MMC, dev_num, &dev);
195 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
196 printf("MMC Device %d not found\n", dev_num);
201 mmc_dev = dev_get_parent(dev);
203 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
208 int get_mmc_num(void)
210 return max((blk_find_max_devnum(IF_TYPE_MMC) + 1), 0);
213 int mmc_get_next_devnum(void)
215 return blk_find_max_devnum(IF_TYPE_MMC);
218 struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
220 struct blk_desc *desc;
223 device_find_first_child(mmc->dev, &dev);
226 desc = dev_get_uclass_platdata(dev);
231 void mmc_do_preinit(void)
237 ret = uclass_get(UCLASS_MMC, &uc);
240 uclass_foreach_dev(dev, uc) {
241 struct mmc *m = mmc_get_mmc_dev(dev);
245 #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
246 mmc_set_preinit(m, 1);
253 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
254 void print_mmc_devices(char separator)
260 for (uclass_first_device(UCLASS_MMC, &dev);
262 uclass_next_device(&dev), first = false) {
263 struct mmc *m = mmc_get_mmc_dev(dev);
266 printf("%c", separator);
267 if (separator != '\n')
271 mmc_type = IS_SD(m) ? "SD" : "eMMC";
275 printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
277 printf(" (%s)", mmc_type);
284 void print_mmc_devices(char separator) { }
287 int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg)
289 struct blk_desc *bdesc;
290 struct udevice *bdev;
291 int ret, devnum = -1;
293 if (!mmc_get_ops(dev))
295 #ifndef CONFIG_SPL_BUILD
296 /* Use the fixed index with aliase node's index */
297 ret = dev_read_alias_seq(dev, &devnum);
298 debug("%s: alias ret=%d, devnum=%d\n", __func__, ret, devnum);
301 ret = blk_create_devicef(dev, "mmc_blk", "blk", IF_TYPE_MMC,
302 devnum, 512, 0, &bdev);
304 debug("Cannot create block device\n");
307 bdesc = dev_get_uclass_platdata(bdev);
311 /* the following chunk was from mmc_register() */
313 /* Setup dsr related values */
315 mmc->dsr = 0xffffffff;
316 /* Setup the universal parts of the block interface just once */
317 bdesc->removable = 1;
319 /* setup initial part type */
320 bdesc->part_type = cfg->part_type;
326 int mmc_unbind(struct udevice *dev)
328 struct udevice *bdev;
330 device_find_first_child(dev, &bdev);
332 device_remove(bdev, DM_REMOVE_NORMAL);
339 static int mmc_select_hwpart(struct udevice *bdev, int hwpart)
341 struct udevice *mmc_dev = dev_get_parent(bdev);
342 struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
343 struct blk_desc *desc = dev_get_uclass_platdata(bdev);
345 if (desc->hwpart == hwpart)
348 if (mmc->part_config == MMCPART_NOAVAILABLE)
351 return mmc_switch_part(mmc, hwpart);
354 static int mmc_blk_probe(struct udevice *dev)
356 struct udevice *mmc_dev = dev_get_parent(dev);
357 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
358 struct mmc *mmc = upriv->mmc;
363 debug("%s: mmc_init() failed (err=%d)\n", __func__, ret);
370 static const struct blk_ops mmc_blk_ops = {
372 #if CONFIG_IS_ENABLED(MMC_WRITE)
376 .select_hwpart = mmc_select_hwpart,
379 U_BOOT_DRIVER(mmc_blk) = {
383 .probe = mmc_blk_probe,
385 #endif /* CONFIG_BLK */
387 U_BOOT_DRIVER(mmc) = {
392 UCLASS_DRIVER(mmc) = {
395 .flags = DM_UC_FLAG_SEQ_ALIAS,
396 .per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv),