1 // SPDX-License-Identifier: GPL-2.0+
9 #include <mmc.h>
13 static int cur_dev_num = -1;
16 static struct mmc mmc_static;
17 struct mmc *find_mmc_device(int dev_num)  in find_mmc_device()
24 	struct mmc *m = &mmc_static;  in mmc_do_preinit()
28 	if (m->preinit)  in mmc_do_preinit()
32 struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)  in mmc_get_blk_desc()  argument
34 	return &mmc->block_dev;  in mmc_get_blk_desc()
37 struct mmc *find_mmc_device(int dev_num)  in find_mmc_device()
39 	struct mmc *m;  in find_mmc_device()
43 		m = list_entry(entry, struct mmc, link);  in find_mmc_device()
45 		if (m->block_dev.devnum == dev_num)  in find_mmc_device()
50 	printf("MMC Device %d not found\n", dev_num);  in find_mmc_device()
61 struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)  in mmc_get_blk_desc()  argument
63 	return &mmc->block_dev;  in mmc_get_blk_desc()
73 	struct mmc *m;  in mmc_do_preinit()
77 		m = list_entry(entry, struct mmc, link);  in mmc_do_preinit()
82 		if (m->preinit)  in mmc_do_preinit()
94 void mmc_list_add(struct mmc *mmc)  in mmc_list_add()  argument
96 	INIT_LIST_HEAD(&mmc->link);  in mmc_list_add()
98 	list_add_tail(&mmc->link, &mmc_devices);  in mmc_list_add()
104 	struct mmc *m;  in print_mmc_devices()
109 		m = list_entry(entry, struct mmc, link);  in print_mmc_devices()
111 		if (m->has_init)  in print_mmc_devices()
116 		printf("%s: %d", m->cfg->name, m->block_dev.devnum);  in print_mmc_devices()
120 		if (entry->next != &mmc_devices) {  in print_mmc_devices()
135 static struct mmc mmc_static = {
149 struct mmc *mmc_create(const struct mmc_config *cfg, void *priv)  in mmc_create()
151 	struct mmc *mmc = &mmc_static;  in mmc_create()  local
153 	mmc->cfg = cfg;  in mmc_create()
154 	mmc->priv = priv;  in mmc_create()
156 	return mmc;  in mmc_create()
159 void mmc_destroy(struct mmc *mmc)  in mmc_destroy()  argument
163 struct mmc *mmc_create(const struct mmc_config *cfg, void *priv)  in mmc_create()
166 	struct mmc *mmc;  in mmc_create()  local
169 	if (cfg == NULL || cfg->f_min == 0 ||  in mmc_create()
170 	    cfg->f_max == 0 || cfg->b_max == 0)  in mmc_create()
174 	if (cfg->ops == NULL || cfg->ops->send_cmd == NULL)  in mmc_create()
178 	mmc = calloc(1, sizeof(*mmc));  in mmc_create()
179 	if (mmc == NULL)  in mmc_create()
182 	mmc->cfg = cfg;  in mmc_create()
183 	mmc->priv = priv;  in mmc_create()
188 	mmc->dsr_imp = 0;  in mmc_create()
189 	mmc->dsr = 0xffffffff;  in mmc_create()
191 	bdesc = mmc_get_blk_desc(mmc);  in mmc_create()
192 	bdesc->if_type = IF_TYPE_MMC;  in mmc_create()
193 	bdesc->removable = 1;  in mmc_create()
194 	bdesc->devnum = mmc_get_next_devnum();  in mmc_create()
195 	bdesc->block_read = mmc_bread;  in mmc_create()
196 	bdesc->block_write = mmc_bwrite;  in mmc_create()
197 	bdesc->block_erase = mmc_berase;  in mmc_create()
200 	bdesc->part_type = mmc->cfg->part_type;  in mmc_create()
201 	mmc_list_add(mmc);  in mmc_create()
203 	return mmc;  in mmc_create()
206 void mmc_destroy(struct mmc *mmc)  in mmc_destroy()  argument
209 	free(mmc);  in mmc_destroy()
215 	struct mmc *mmc = find_mmc_device(desc->devnum);  in mmc_select_hwpartp()  local
218 	if (!mmc)  in mmc_select_hwpartp()
219 		return -ENODEV;  in mmc_select_hwpartp()
221 	if (mmc->block_dev.hwpart == hwpart)  in mmc_select_hwpartp()
224 	if (mmc->part_config == MMCPART_NOAVAILABLE)  in mmc_select_hwpartp()
225 		return -EMEDIUMTYPE;  in mmc_select_hwpartp()
227 	ret = mmc_switch_part(mmc, hwpart);  in mmc_select_hwpartp()
236 	struct mmc *mmc = find_mmc_device(dev);  in mmc_get_dev()  local
239 	if (!mmc)  in mmc_get_dev()
240 		return -ENODEV;  in mmc_get_dev()
241 	ret = mmc_init(mmc);  in mmc_get_dev()
245 	*descp = &mmc->block_dev;  in mmc_get_dev()
250 U_BOOT_LEGACY_BLK(mmc) = {
251 	.if_typename	= "mmc",
253 	.max_devs	= -1,