[u-boot.git] / drivers / mmc / mmc-uclass.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2015 Google, Inc
 * Copyright 2020 NXP
 * Written by Simon Glass <[email protected]>
 */

#define LOG_CATEGORY UCLASS_MMC

#include <common.h>
#include <bootdev.h>
#include <log.h>
#include <mmc.h>
#include <dm.h>
#include <dm/device-internal.h>
#include <dm/device_compat.h>
#include <dm/lists.h>
#include <linux/compat.h>
#include "mmc_private.h"

static int dm_mmc_get_b_max(struct udevice *dev, void *dst, lbaint_t blkcnt)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	struct mmc *mmc = mmc_get_mmc_dev(dev);

	if (ops->get_b_max)
		return ops->get_b_max(dev, dst, blkcnt);
	else
		return mmc->cfg->b_max;
}

int mmc_get_b_max(struct mmc *mmc, void *dst, lbaint_t blkcnt)
{
	return dm_mmc_get_b_max(mmc->dev, dst, blkcnt);
}

static int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
		    struct mmc_data *data)
{
	struct mmc *mmc = mmc_get_mmc_dev(dev);
	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	int ret;

	mmmc_trace_before_send(mmc, cmd);
	if (ops->send_cmd)
		ret = ops->send_cmd(dev, cmd, data);
	else
		ret = -ENOSYS;
	mmmc_trace_after_send(mmc, cmd, ret);

	return ret;
}

int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
{
	return dm_mmc_send_cmd(mmc->dev, cmd, data);
}

static int dm_mmc_set_ios(struct udevice *dev)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);

	if (!ops->set_ios)
		return -ENOSYS;
	return ops->set_ios(dev);
}

int mmc_set_ios(struct mmc *mmc)
{
	return dm_mmc_set_ios(mmc->dev);
}

static int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);

	if (!ops->wait_dat0)
		return -ENOSYS;
	return ops->wait_dat0(dev, state, timeout_us);
}

int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us)
{
	return dm_mmc_wait_dat0(mmc->dev, state, timeout_us);
}

static int dm_mmc_get_wp(struct udevice *dev)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);

	if (!ops->get_wp)
		return -ENOSYS;
	return ops->get_wp(dev);
}

int mmc_getwp(struct mmc *mmc)
{
	return dm_mmc_get_wp(mmc->dev);
}

static int dm_mmc_get_cd(struct udevice *dev)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);

	if (!ops->get_cd)
		return -ENOSYS;
	return ops->get_cd(dev);
}

int mmc_getcd(struct mmc *mmc)
{
	return dm_mmc_get_cd(mmc->dev);
}

#ifdef MMC_SUPPORTS_TUNING
static int dm_mmc_execute_tuning(struct udevice *dev, uint opcode)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);

	if (!ops->execute_tuning)
		return -ENOSYS;
	return ops->execute_tuning(dev, opcode);
}

int mmc_execute_tuning(struct mmc *mmc, uint opcode)
{
	return dm_mmc_execute_tuning(mmc->dev, opcode);
}
#endif

#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
static int dm_mmc_set_enhanced_strobe(struct udevice *dev)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);

	if (ops->set_enhanced_strobe)
		return ops->set_enhanced_strobe(dev);

	return -ENOTSUPP;
}

int mmc_set_enhanced_strobe(struct mmc *mmc)
{
	return dm_mmc_set_enhanced_strobe(mmc->dev);
}
#endif

static int dm_mmc_hs400_prepare_ddr(struct udevice *dev)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);

	if (ops->hs400_prepare_ddr)
		return ops->hs400_prepare_ddr(dev);

	return 0;
}

int mmc_hs400_prepare_ddr(struct mmc *mmc)
{
	return dm_mmc_hs400_prepare_ddr(mmc->dev);
}

static int dm_mmc_host_power_cycle(struct udevice *dev)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);

	if (ops->host_power_cycle)
		return ops->host_power_cycle(dev);
	return 0;
}

int mmc_host_power_cycle(struct mmc *mmc)
{
	return dm_mmc_host_power_cycle(mmc->dev);
}

static int dm_mmc_deferred_probe(struct udevice *dev)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);

	if (ops->deferred_probe)
		return ops->deferred_probe(dev);

	return 0;
}

int mmc_deferred_probe(struct mmc *mmc)
{
	return dm_mmc_deferred_probe(mmc->dev);
}

static int dm_mmc_reinit(struct udevice *dev)
{
	struct dm_mmc_ops *ops = mmc_get_ops(dev);

	if (ops->reinit)
		return ops->reinit(dev);

	return 0;
}

int mmc_reinit(struct mmc *mmc)
{
	return dm_mmc_reinit(mmc->dev);
}

int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg)
{
	int val;

	val = dev_read_u32_default(dev, "bus-width", 1);

	switch (val) {
	case 0x8:
		cfg->host_caps |= MMC_MODE_8BIT;
		/* fall through */
	case 0x4:
		cfg->host_caps |= MMC_MODE_4BIT;
		/* fall through */
	case 0x1:
		cfg->host_caps |= MMC_MODE_1BIT;
		break;
	default:
		dev_err(dev, "Invalid \"bus-width\" value %u!\n", val);
		return -EINVAL;
	}

	/* f_max is obtained from the optional "max-frequency" property */
	dev_read_u32(dev, "max-frequency", &cfg->f_max);

	if (dev_read_bool(dev, "cap-sd-highspeed"))
		cfg->host_caps |= MMC_CAP(SD_HS);
	if (dev_read_bool(dev, "cap-mmc-highspeed"))
		cfg->host_caps |= MMC_CAP(MMC_HS) | MMC_CAP(MMC_HS_52);
	if (dev_read_bool(dev, "sd-uhs-sdr12"))
		cfg->host_caps |= MMC_CAP(UHS_SDR12);
	if (dev_read_bool(dev, "sd-uhs-sdr25"))
		cfg->host_caps |= MMC_CAP(UHS_SDR25);
	if (dev_read_bool(dev, "sd-uhs-sdr50"))
		cfg->host_caps |= MMC_CAP(UHS_SDR50);
	if (dev_read_bool(dev, "sd-uhs-sdr104"))
		cfg->host_caps |= MMC_CAP(UHS_SDR104);
	if (dev_read_bool(dev, "sd-uhs-ddr50"))
		cfg->host_caps |= MMC_CAP(UHS_DDR50);
	if (dev_read_bool(dev, "mmc-ddr-1_8v"))
		cfg->host_caps |= MMC_CAP(MMC_DDR_52);
	if (dev_read_bool(dev, "mmc-ddr-1_2v"))
		cfg->host_caps |= MMC_CAP(MMC_DDR_52);
	if (dev_read_bool(dev, "mmc-hs200-1_8v"))
		cfg->host_caps |= MMC_CAP(MMC_HS_200);
	if (dev_read_bool(dev, "mmc-hs200-1_2v"))
		cfg->host_caps |= MMC_CAP(MMC_HS_200);
	if (dev_read_bool(dev, "mmc-hs400-1_8v"))
		cfg->host_caps |= MMC_CAP(MMC_HS_400);
	if (dev_read_bool(dev, "mmc-hs400-1_2v"))
		cfg->host_caps |= MMC_CAP(MMC_HS_400);
	if (dev_read_bool(dev, "mmc-hs400-enhanced-strobe"))
		cfg->host_caps |= MMC_CAP(MMC_HS_400_ES);

	if (dev_read_bool(dev, "non-removable")) {
		cfg->host_caps |= MMC_CAP_NONREMOVABLE;
	} else {
		if (dev_read_bool(dev, "cd-inverted"))
			cfg->host_caps |= MMC_CAP_CD_ACTIVE_HIGH;
		if (dev_read_bool(dev, "broken-cd"))
			cfg->host_caps |= MMC_CAP_NEEDS_POLL;
	}

	if (dev_read_bool(dev, "no-1-8-v")) {
		cfg->host_caps &= ~(UHS_CAPS | MMC_MODE_HS200 |
				    MMC_MODE_HS400 | MMC_MODE_HS400_ES);
	}

	return 0;
}

struct mmc *mmc_get_mmc_dev(const struct udevice *dev)
{
	struct mmc_uclass_priv *upriv;

	if (!device_active(dev))
		return NULL;
	upriv = dev_get_uclass_priv(dev);
	return upriv->mmc;
}

#if CONFIG_IS_ENABLED(BLK)
struct mmc *find_mmc_device(int dev_num)
{
	struct udevice *dev, *mmc_dev;
	int ret;

	ret = blk_find_device(UCLASS_MMC, dev_num, &dev);

	if (ret) {
#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
		printf("MMC Device %d not found\n", dev_num);
#endif
		return NULL;
	}

	mmc_dev = dev_get_parent(dev);

	struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);

	return mmc;
}

int get_mmc_num(void)
{
	return max((blk_find_max_devnum(UCLASS_MMC) + 1), 0);
}

int mmc_get_next_devnum(void)
{
	return blk_find_max_devnum(UCLASS_MMC);
}

int mmc_get_blk(struct udevice *dev, struct udevice **blkp)
{
	struct udevice *blk;
	int ret;

	device_find_first_child_by_uclass(dev, UCLASS_BLK, &blk);
	ret = device_probe(blk);
	if (ret)
		return ret;
	*blkp = blk;

	return 0;
}

struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
{
	struct blk_desc *desc;
	struct udevice *dev;

	device_find_first_child_by_uclass(mmc->dev, UCLASS_BLK, &dev);
	if (!dev)
		return NULL;
	desc = dev_get_uclass_plat(dev);

	return desc;
}

void mmc_do_preinit(void)
{
	struct udevice *dev;
	struct uclass *uc;
	int ret;

	ret = uclass_get(UCLASS_MMC, &uc);
	if (ret)
		return;
	uclass_foreach_dev(dev, uc) {
		struct mmc *m = mmc_get_mmc_dev(dev);

		if (!m)
			continue;

		m->user_speed_mode = MMC_MODES_END;  /* Initialising user set speed mode */

		if (m->preinit)
			mmc_start_init(m);
	}
}

#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
void print_mmc_devices(char separator)
{
	struct udevice *dev;
	char *mmc_type;
	bool first = true;

	for (uclass_first_device(UCLASS_MMC, &dev);
	     dev;
	     uclass_next_device(&dev), first = false) {
		struct mmc *m = mmc_get_mmc_dev(dev);

		if (!first) {
			printf("%c", separator);
			if (separator != '\n')
				puts(" ");
		}
		if (m->has_init)
			mmc_type = IS_SD(m) ? "SD" : "eMMC";
		else
			mmc_type = NULL;

		printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
		if (mmc_type)
			printf(" (%s)", mmc_type);
	}

	printf("\n");
}

#else
void print_mmc_devices(char separator) { }
#endif

int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg)
{
	struct blk_desc *bdesc;
	struct udevice *bdev;
	int ret;

	if (!mmc_get_ops(dev))
		return -ENOSYS;

	/* Use the fixed index with aliases node's index */
	debug("%s: alias devnum=%d\n", __func__, dev_seq(dev));

	ret = blk_create_devicef(dev, "mmc_blk", "blk", UCLASS_MMC,
				 dev_seq(dev), 512, 0, &bdev);
	if (ret) {
		debug("Cannot create block device\n");
		return ret;
	}
	bdesc = dev_get_uclass_plat(bdev);
	mmc->cfg = cfg;
	mmc->priv = dev;

	ret = bootdev_setup_sibling_blk(bdev, "mmc_bootdev");
	if (ret)
		return log_msg_ret("bootdev", ret);

	/* the following chunk was from mmc_register() */

	/* Setup dsr related values */
	mmc->dsr_imp = 0;
	mmc->dsr = 0xffffffff;
	/* Setup the universal parts of the block interface just once */
	bdesc->removable = 1;

	/* setup initial part type */
	bdesc->part_type = cfg->part_type;
	mmc->dev = dev;
	mmc->user_speed_mode = MMC_MODES_END;
	return 0;
}

int mmc_unbind(struct udevice *dev)
{
	struct udevice *bdev;
	int ret;

	device_find_first_child_by_uclass(dev, UCLASS_BLK, &bdev);
	if (bdev) {
		device_remove(bdev, DM_REMOVE_NORMAL);
		device_unbind(bdev);
	}
	ret = bootdev_unbind_dev(dev);
	if (ret)
		return log_msg_ret("bootdev", ret);

	return 0;
}

static int mmc_select_hwpart(struct udevice *bdev, int hwpart)
{
	struct udevice *mmc_dev = dev_get_parent(bdev);
	struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
	struct blk_desc *desc = dev_get_uclass_plat(bdev);
	int ret;

	if (desc->hwpart == hwpart)
		return 0;

	if (mmc->part_config == MMCPART_NOAVAILABLE)
		return -EMEDIUMTYPE;

	ret = mmc_switch_part(mmc, hwpart);
	if (!ret)
		blkcache_invalidate(desc->uclass_id, desc->devnum);

	return ret;
}

static int mmc_blk_probe(struct udevice *dev)
{
	struct udevice *mmc_dev = dev_get_parent(dev);
	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
	struct mmc *mmc = upriv->mmc;
	int ret;

	ret = mmc_init(mmc);
	if (ret) {
		debug("%s: mmc_init() failed (err=%d)\n", __func__, ret);
		return ret;
	}

	ret = device_probe(dev);
	if (ret) {
		debug("Probing %s failed (err=%d)\n", dev->name, ret);

		if (CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) ||
		    CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) ||
		    CONFIG_IS_ENABLED(MMC_HS400_SUPPORT))
			mmc_deinit(mmc);

		return ret;
	}

	return 0;
}

#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
    CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
    CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
static int mmc_blk_remove(struct udevice *dev)
{
	struct udevice *mmc_dev = dev_get_parent(dev);
	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
	struct mmc *mmc = upriv->mmc;

	return mmc_deinit(mmc);
}
#endif

static const struct blk_ops mmc_blk_ops = {
	.read	= mmc_bread,
#if CONFIG_IS_ENABLED(MMC_WRITE)
	.write	= mmc_bwrite,
	.erase	= mmc_berase,
#endif
	.select_hwpart	= mmc_select_hwpart,
};

U_BOOT_DRIVER(mmc_blk) = {
	.name		= "mmc_blk",
	.id		= UCLASS_BLK,
	.ops		= &mmc_blk_ops,
	.probe		= mmc_blk_probe,
#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
    CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \
    CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
	.remove		= mmc_blk_remove,
	.flags		= DM_FLAG_OS_PREPARE,
#endif
};
#endif /* CONFIG_BLK */


UCLASS_DRIVER(mmc) = {
	.id		= UCLASS_MMC,
	.name		= "mmc",
	.flags		= DM_UC_FLAG_SEQ_ALIAS,
	.per_device_auto	= sizeof(struct mmc_uclass_priv),
};
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
e7ecf7cb SG	2	/*
e7ecf7cb SG	3	* Copyright (C) 2015 Google, Inc
39913ace	4	* Copyright 2020 NXP
e7ecf7cb	5	* Written by Simon Glass <[email protected]>
e7ecf7cb SG	6	*/
e7ecf7cb SG	7
b953ec2b PD	8	#define LOG_CATEGORY UCLASS_MMC
b953ec2b PD	9
e7ecf7cb	10	#include <common.h>
b8aa463e	11	#include <bootdev.h>
f7ae49fc	12	#include <log.h>
e7ecf7cb SG	13	#include <mmc.h>
e7ecf7cb SG	14	#include <dm.h>
eede897e	15	#include <dm/device-internal.h>
336d4615	16	#include <dm/device_compat.h>
e7ecf7cb	17	#include <dm/lists.h>
336d4615	18	#include <linux/compat.h>
eede897e	19	#include "mmc_private.h"
e7ecf7cb	20
d77d61ea	21	static int dm_mmc_get_b_max(struct udevice dev, void dst, lbaint_t blkcnt)
145429aa MV	22	{
	23	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	24	struct mmc *mmc = mmc_get_mmc_dev(dev);
	25
	26	if (ops->get_b_max)
	27	return ops->get_b_max(dev, dst, blkcnt);
	28	else
	29	return mmc->cfg->b_max;
	30	}
	31
	32	int mmc_get_b_max(struct mmc mmc, void dst, lbaint_t blkcnt)
	33	{
	34	return dm_mmc_get_b_max(mmc->dev, dst, blkcnt);
	35	}
	36
d77d61ea	37	static int dm_mmc_send_cmd(struct udevice dev, struct mmc_cmd cmd,
8ca51e51 SG	38	struct mmc_data *data)
	39	{
	40	struct mmc *mmc = mmc_get_mmc_dev(dev);
	41	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	42	int ret;
	43
	44	mmmc_trace_before_send(mmc, cmd);
	45	if (ops->send_cmd)
	46	ret = ops->send_cmd(dev, cmd, data);
	47	else
	48	ret = -ENOSYS;
	49	mmmc_trace_after_send(mmc, cmd, ret);
	50
	51	return ret;
	52	}
	53
	54	int mmc_send_cmd(struct mmc mmc, struct mmc_cmd cmd, struct mmc_data *data)
	55	{
	56	return dm_mmc_send_cmd(mmc->dev, cmd, data);
	57	}
	58
d77d61ea	59	static int dm_mmc_set_ios(struct udevice *dev)
8ca51e51 SG	60	{
	61	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	62
	63	if (!ops->set_ios)
	64	return -ENOSYS;
	65	return ops->set_ios(dev);
	66	}
	67
	68	int mmc_set_ios(struct mmc *mmc)
	69	{
	70	return dm_mmc_set_ios(mmc->dev);
	71	}
	72
d77d61ea	73	static int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us)
c10b85d6 JJH	74	{
	75	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	76
	77	if (!ops->wait_dat0)
	78	return -ENOSYS;
6cf8a903	79	return ops->wait_dat0(dev, state, timeout_us);
c10b85d6 JJH	80	}
c10b85d6 JJH	81
6cf8a903	82	int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us)
c10b85d6	83	{
6cf8a903	84	return dm_mmc_wait_dat0(mmc->dev, state, timeout_us);
c10b85d6 JJH	85	}
c10b85d6 JJH	86
d77d61ea	87	static int dm_mmc_get_wp(struct udevice *dev)
8ca51e51 SG	88	{
	89	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	90
	91	if (!ops->get_wp)
	92	return -ENOSYS;
	93	return ops->get_wp(dev);
	94	}
	95
	96	int mmc_getwp(struct mmc *mmc)
	97	{
	98	return dm_mmc_get_wp(mmc->dev);
	99	}
	100
d77d61ea	101	static int dm_mmc_get_cd(struct udevice *dev)
8ca51e51 SG	102	{
	103	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	104
	105	if (!ops->get_cd)
	106	return -ENOSYS;
	107	return ops->get_cd(dev);
	108	}
	109
	110	int mmc_getcd(struct mmc *mmc)
	111	{
	112	return dm_mmc_get_cd(mmc->dev);
	113	}
8ca51e51	114
f99c2efe	115	#ifdef MMC_SUPPORTS_TUNING
d77d61ea	116	static int dm_mmc_execute_tuning(struct udevice *dev, uint opcode)
ec841209 KVA	117	{
	118	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	119
	120	if (!ops->execute_tuning)
	121	return -ENOSYS;
	122	return ops->execute_tuning(dev, opcode);
	123	}
	124
	125	int mmc_execute_tuning(struct mmc *mmc, uint opcode)
	126	{
	127	return dm_mmc_execute_tuning(mmc->dev, opcode);
	128	}
f99c2efe	129	#endif
ec841209	130
44acd492	131	#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
d77d61ea	132	static int dm_mmc_set_enhanced_strobe(struct udevice *dev)
44acd492 PF	133	{
	134	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	135
	136	if (ops->set_enhanced_strobe)
	137	return ops->set_enhanced_strobe(dev);
	138
	139	return -ENOTSUPP;
	140	}
	141
	142	int mmc_set_enhanced_strobe(struct mmc *mmc)
	143	{
	144	return dm_mmc_set_enhanced_strobe(mmc->dev);
	145	}
	146	#endif
	147
d77d61ea	148	static int dm_mmc_hs400_prepare_ddr(struct udevice *dev)
d271e105 YL	149	{
	150	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	151
	152	if (ops->hs400_prepare_ddr)
	153	return ops->hs400_prepare_ddr(dev);
	154
	155	return 0;
	156	}
	157
	158	int mmc_hs400_prepare_ddr(struct mmc *mmc)
	159	{
	160	return dm_mmc_hs400_prepare_ddr(mmc->dev);
	161	}
	162
d77d61ea	163	static int dm_mmc_host_power_cycle(struct udevice *dev)
3602a56a YG	164	{
	165	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	166
	167	if (ops->host_power_cycle)
	168	return ops->host_power_cycle(dev);
	169	return 0;
	170	}
	171
	172	int mmc_host_power_cycle(struct mmc *mmc)
	173	{
	174	return dm_mmc_host_power_cycle(mmc->dev);
	175	}
	176
d77d61ea	177	static int dm_mmc_deferred_probe(struct udevice *dev)
32860bdb FA	178	{
	179	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	180
	181	if (ops->deferred_probe)
	182	return ops->deferred_probe(dev);
	183
	184	return 0;
	185	}
	186
	187	int mmc_deferred_probe(struct mmc *mmc)
	188	{
	189	return dm_mmc_deferred_probe(mmc->dev);
	190	}
	191
d77d61ea	192	static int dm_mmc_reinit(struct udevice *dev)
390f9bdd YL	193	{
	194	struct dm_mmc_ops *ops = mmc_get_ops(dev);
	195
	196	if (ops->reinit)
	197	return ops->reinit(dev);
	198
	199	return 0;
	200	}
	201
	202	int mmc_reinit(struct mmc *mmc)
	203	{
	204	return dm_mmc_reinit(mmc->dev);
	205	}
	206
7abff2c3	207	int mmc_of_parse(struct udevice dev, struct mmc_config cfg)
9215ef5e KVA	208	{
	209	int val;
	210
7abff2c3	211	val = dev_read_u32_default(dev, "bus-width", 1);
9215ef5e KVA	212
	213	switch (val) {
	214	case 0x8:
	215	cfg->host_caps \|= MMC_MODE_8BIT;
	216	/* fall through */
	217	case 0x4:
	218	cfg->host_caps \|= MMC_MODE_4BIT;
	219	/* fall through */
	220	case 0x1:
	221	cfg->host_caps \|= MMC_MODE_1BIT;
	222	break;
	223	default:
4b28f7bc MY	224	dev_err(dev, "Invalid \"bus-width\" value %u!\n", val);
4b28f7bc MY	225	return -EINVAL;
9215ef5e KVA	226	}
9215ef5e KVA	227
c42ee367 MY	228	/* f_max is obtained from the optional "max-frequency" property */
c42ee367 MY	229	dev_read_u32(dev, "max-frequency", &cfg->f_max);
9215ef5e	230
7abff2c3	231	if (dev_read_bool(dev, "cap-sd-highspeed"))
9215ef5e	232	cfg->host_caps \|= MMC_CAP(SD_HS);
7abff2c3	233	if (dev_read_bool(dev, "cap-mmc-highspeed"))
f80b8ac6	234	cfg->host_caps \|= MMC_CAP(MMC_HS) \| MMC_CAP(MMC_HS_52);
7abff2c3	235	if (dev_read_bool(dev, "sd-uhs-sdr12"))
9215ef5e	236	cfg->host_caps \|= MMC_CAP(UHS_SDR12);
7abff2c3	237	if (dev_read_bool(dev, "sd-uhs-sdr25"))
9215ef5e	238	cfg->host_caps \|= MMC_CAP(UHS_SDR25);
7abff2c3	239	if (dev_read_bool(dev, "sd-uhs-sdr50"))
9215ef5e	240	cfg->host_caps \|= MMC_CAP(UHS_SDR50);
7abff2c3	241	if (dev_read_bool(dev, "sd-uhs-sdr104"))
9215ef5e	242	cfg->host_caps \|= MMC_CAP(UHS_SDR104);
7abff2c3	243	if (dev_read_bool(dev, "sd-uhs-ddr50"))
9215ef5e	244	cfg->host_caps \|= MMC_CAP(UHS_DDR50);
7abff2c3	245	if (dev_read_bool(dev, "mmc-ddr-1_8v"))
9215ef5e	246	cfg->host_caps \|= MMC_CAP(MMC_DDR_52);
7abff2c3 JJH	247	if (dev_read_bool(dev, "mmc-ddr-1_2v"))
	248	cfg->host_caps \|= MMC_CAP(MMC_DDR_52);
	249	if (dev_read_bool(dev, "mmc-hs200-1_8v"))
	250	cfg->host_caps \|= MMC_CAP(MMC_HS_200);
	251	if (dev_read_bool(dev, "mmc-hs200-1_2v"))
9215ef5e	252	cfg->host_caps \|= MMC_CAP(MMC_HS_200);
eb2acbaf MV	253	if (dev_read_bool(dev, "mmc-hs400-1_8v"))
	254	cfg->host_caps \|= MMC_CAP(MMC_HS_400);
	255	if (dev_read_bool(dev, "mmc-hs400-1_2v"))
	256	cfg->host_caps \|= MMC_CAP(MMC_HS_400);
b0fc3127 PF	257	if (dev_read_bool(dev, "mmc-hs400-enhanced-strobe"))
b0fc3127 PF	258	cfg->host_caps \|= MMC_CAP(MMC_HS_400_ES);
9215ef5e	259
86a94e7b KR	260	if (dev_read_bool(dev, "non-removable")) {
	261	cfg->host_caps \|= MMC_CAP_NONREMOVABLE;
	262	} else {
	263	if (dev_read_bool(dev, "cd-inverted"))
	264	cfg->host_caps \|= MMC_CAP_CD_ACTIVE_HIGH;
	265	if (dev_read_bool(dev, "broken-cd"))
	266	cfg->host_caps \|= MMC_CAP_NEEDS_POLL;
	267	}
	268
479a8dd6 PF	269	if (dev_read_bool(dev, "no-1-8-v")) {
	270	cfg->host_caps &= ~(UHS_CAPS \| MMC_MODE_HS200 \|
	271	MMC_MODE_HS400 \| MMC_MODE_HS400_ES);
	272	}
	273
9215ef5e KVA	274	return 0;
	275	}
	276
3a905cd2	277	struct mmc mmc_get_mmc_dev(const struct udevice dev)
e7ecf7cb SG	278	{
	279	struct mmc_uclass_priv *upriv;
	280
	281	if (!device_active(dev))
	282	return NULL;
	283	upriv = dev_get_uclass_priv(dev);
	284	return upriv->mmc;
	285	}
	286
c4d660d4	287	#if CONFIG_IS_ENABLED(BLK)
8ef761ed SG	288	struct mmc *find_mmc_device(int dev_num)
	289	{
	290	struct udevice dev, mmc_dev;
	291	int ret;
	292
e33a5c6b	293	ret = blk_find_device(UCLASS_MMC, dev_num, &dev);
8ef761ed SG	294
	295	if (ret) {
	296	#if !defined(CONFIG_SPL_BUILD) \|\| defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
	297	printf("MMC Device %d not found\n", dev_num);
	298	#endif
	299	return NULL;
	300	}
	301
	302	mmc_dev = dev_get_parent(dev);
	303
97525647 SG	304	struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
	305
	306	return mmc;
8ef761ed SG	307	}
	308
	309	int get_mmc_num(void)
	310	{
e33a5c6b	311	return max((blk_find_max_devnum(UCLASS_MMC) + 1), 0);
8ef761ed SG	312	}
	313
	314	int mmc_get_next_devnum(void)
	315	{
e33a5c6b	316	return blk_find_max_devnum(UCLASS_MMC);
8ef761ed SG	317	}
8ef761ed SG	318
b8aa463e SG	319	int mmc_get_blk(struct udevice dev, struct udevice *blkp)
	320	{
	321	struct udevice *blk;
	322	int ret;
	323
	324	device_find_first_child_by_uclass(dev, UCLASS_BLK, &blk);
	325	ret = device_probe(blk);
	326	if (ret)
	327	return ret;
	328	*blkp = blk;
	329
	330	return 0;
	331	}
	332
8ef761ed SG	333	struct blk_desc mmc_get_blk_desc(struct mmc mmc)
	334	{
	335	struct blk_desc *desc;
	336	struct udevice *dev;
	337
ce34a665	338	device_find_first_child_by_uclass(mmc->dev, UCLASS_BLK, &dev);
8ef761ed SG	339	if (!dev)
8ef761ed SG	340	return NULL;
caa4daa2	341	desc = dev_get_uclass_plat(dev);
8ef761ed SG	342
	343	return desc;
	344	}
	345
	346	void mmc_do_preinit(void)
	347	{
	348	struct udevice *dev;
	349	struct uclass *uc;
	350	int ret;
	351
	352	ret = uclass_get(UCLASS_MMC, &uc);
	353	if (ret)
	354	return;
	355	uclass_foreach_dev(dev, uc) {
	356	struct mmc *m = mmc_get_mmc_dev(dev);
	357
	358	if (!m)
	359	continue;
19f7a34a AG	360
	361	m->user_speed_mode = MMC_MODES_END; /* Initialising user set speed mode */
	362
8ef761ed SG	363	if (m->preinit)
	364	mmc_start_init(m);
	365	}
	366	}
	367
	368	#if !defined(CONFIG_SPL_BUILD) \|\| defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
	369	void print_mmc_devices(char separator)
	370	{
	371	struct udevice *dev;
	372	char *mmc_type;
	373	bool first = true;
	374
	375	for (uclass_first_device(UCLASS_MMC, &dev);
	376	dev;
1bd4f92c	377	uclass_next_device(&dev), first = false) {
8ef761ed SG	378	struct mmc *m = mmc_get_mmc_dev(dev);
	379
	380	if (!first) {
	381	printf("%c", separator);
	382	if (separator != '\n')
	383	puts(" ");
	384	}
	385	if (m->has_init)
	386	mmc_type = IS_SD(m) ? "SD" : "eMMC";
	387	else
	388	mmc_type = NULL;
	389
	390	printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum);
	391	if (mmc_type)
	392	printf(" (%s)", mmc_type);
	393	}
	394
	395	printf("\n");
	396	}
	397
	398	#else
	399	void print_mmc_devices(char separator) { }
	400	#endif
eede897e SG	401
	402	int mmc_bind(struct udevice dev, struct mmc mmc, const struct mmc_config *cfg)
	403	{
	404	struct blk_desc *bdesc;
	405	struct udevice *bdev;
2243d19e	406	int ret;
02ad33aa	407
66656020 SG	408	if (!mmc_get_ops(dev))
66656020 SG	409	return -ENOSYS;
2243d19e AG	410
	411	/* Use the fixed index with aliases node's index */
	412	debug("%s: alias devnum=%d\n", __func__, dev_seq(dev));
eede897e	413
e33a5c6b SG	414	ret = blk_create_devicef(dev, "mmc_blk", "blk", UCLASS_MMC,
e33a5c6b SG	415	dev_seq(dev), 512, 0, &bdev);
eede897e SG	416	if (ret) {
	417	debug("Cannot create block device\n");
	418	return ret;
	419	}
caa4daa2	420	bdesc = dev_get_uclass_plat(bdev);
eede897e SG	421	mmc->cfg = cfg;
	422	mmc->priv = dev;
	423
3a2cb96e	424	ret = bootdev_setup_sibling_blk(bdev, "mmc_bootdev");
b8aa463e SG	425	if (ret)
	426	return log_msg_ret("bootdev", ret);
	427
eede897e SG	428	/* the following chunk was from mmc_register() */
	429
	430	/* Setup dsr related values */
	431	mmc->dsr_imp = 0;
	432	mmc->dsr = 0xffffffff;
	433	/* Setup the universal parts of the block interface just once */
	434	bdesc->removable = 1;
	435
	436	/* setup initial part type */
	437	bdesc->part_type = cfg->part_type;
	438	mmc->dev = dev;
19f7a34a	439	mmc->user_speed_mode = MMC_MODES_END;
eede897e SG	440	return 0;
	441	}
	442
	443	int mmc_unbind(struct udevice *dev)
	444	{
	445	struct udevice *bdev;
b8aa463e	446	int ret;
eede897e	447
ce34a665	448	device_find_first_child_by_uclass(dev, UCLASS_BLK, &bdev);
eede897e	449	if (bdev) {
706865af	450	device_remove(bdev, DM_REMOVE_NORMAL);
eede897e SG	451	device_unbind(bdev);
eede897e SG	452	}
b8aa463e SG	453	ret = bootdev_unbind_dev(dev);
	454	if (ret)
	455	return log_msg_ret("bootdev", ret);
eede897e SG	456
	457	return 0;
	458	}
	459
	460	static int mmc_select_hwpart(struct udevice *bdev, int hwpart)
	461	{
	462	struct udevice *mmc_dev = dev_get_parent(bdev);
	463	struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
caa4daa2	464	struct blk_desc *desc = dev_get_uclass_plat(bdev);
47b7fa30	465	int ret;
eede897e SG	466
	467	if (desc->hwpart == hwpart)
	468	return 0;
	469
	470	if (mmc->part_config == MMCPART_NOAVAILABLE)
	471	return -EMEDIUMTYPE;
	472
47b7fa30 WG	473	ret = mmc_switch_part(mmc, hwpart);
47b7fa30 WG	474	if (!ret)
8149b150	475	blkcache_invalidate(desc->uclass_id, desc->devnum);
47b7fa30 WG	476
47b7fa30 WG	477	return ret;
eede897e SG	478	}
eede897e SG	479
a0269bb6 FA	480	static int mmc_blk_probe(struct udevice *dev)
a0269bb6 FA	481	{
854f9a71 SG	482	struct udevice *mmc_dev = dev_get_parent(dev);
	483	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
	484	struct mmc *mmc = upriv->mmc;
	485	int ret;
	486
	487	ret = mmc_init(mmc);
	488	if (ret) {
	489	debug("%s: mmc_init() failed (err=%d)\n", __func__, ret);
	490	return ret;
	491	}
a0269bb6	492
c822c1a5 AT	493	ret = device_probe(dev);
	494	if (ret) {
	495	debug("Probing %s failed (err=%d)\n", dev->name, ret);
	496
	497	if (CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) \|\|
	498	CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) \|\|
	499	CONFIG_IS_ENABLED(MMC_HS400_SUPPORT))
	500	mmc_deinit(mmc);
	501
	502	return ret;
	503	}
	504
854f9a71	505	return 0;
a0269bb6 FA	506	}
a0269bb6 FA	507
fceea992 MV	508	#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) \|\| \
	509	CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) \|\| \
	510	CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
	511	static int mmc_blk_remove(struct udevice *dev)
	512	{
	513	struct udevice *mmc_dev = dev_get_parent(dev);
	514	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev);
	515	struct mmc *mmc = upriv->mmc;
	516
	517	return mmc_deinit(mmc);
	518	}
	519	#endif
	520
eede897e SG	521	static const struct blk_ops mmc_blk_ops = {
eede897e SG	522	.read = mmc_bread,
d6400c3f	523	#if CONFIG_IS_ENABLED(MMC_WRITE)
eede897e	524	.write = mmc_bwrite,
561e624c	525	.erase = mmc_berase,
eede897e SG	526	#endif
	527	.select_hwpart = mmc_select_hwpart,
	528	};
	529
	530	U_BOOT_DRIVER(mmc_blk) = {
	531	.name = "mmc_blk",
	532	.id = UCLASS_BLK,
	533	.ops = &mmc_blk_ops,
a0269bb6	534	.probe = mmc_blk_probe,
fceea992 MV	535	#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) \|\| \
	536	CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) \|\| \
	537	CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
	538	.remove = mmc_blk_remove,
	539	.flags = DM_FLAG_OS_PREPARE,
	540	#endif
eede897e	541	};
8ef761ed SG	542	#endif /* CONFIG_BLK */
8ef761ed SG	543
e7ecf7cb SG	544
	545	UCLASS_DRIVER(mmc) = {
	546	.id = UCLASS_MMC,
	547	.name = "mmc",
	548	.flags = DM_UC_FLAG_SEQ_ALIAS,
41575d8e	549	.per_device_auto = sizeof(struct mmc_uclass_priv),
e7ecf7cb	550	};