| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (C) 2015 Google, Inc |
| * Copyright 2020 NXP |
| * Written by Simon Glass <sjg@chromium.org> |
| */ |
| |
| #include <common.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" |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| 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 |
| 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) |
| 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 |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| 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); |
| 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(IF_TYPE_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(IF_TYPE_MMC) + 1), 0); |
| } |
| |
| int mmc_get_next_devnum(void) |
| { |
| return blk_find_max_devnum(IF_TYPE_MMC); |
| } |
| |
| struct blk_desc *mmc_get_blk_desc(struct mmc *mmc) |
| { |
| struct blk_desc *desc; |
| struct udevice *dev; |
| |
| device_find_first_child(mmc->dev, &dev); |
| if (!dev) |
| return NULL; |
| desc = dev_get_uclass_platdata(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; |
| 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, devnum = -1; |
| |
| if (!mmc_get_ops(dev)) |
| return -ENOSYS; |
| #ifndef CONFIG_SPL_BUILD |
| /* Use the fixed index with aliase node's index */ |
| ret = dev_read_alias_seq(dev, &devnum); |
| debug("%s: alias ret=%d, devnum=%d\n", __func__, ret, devnum); |
| #endif |
| |
| ret = blk_create_devicef(dev, "mmc_blk", "blk", IF_TYPE_MMC, |
| devnum, 512, 0, &bdev); |
| if (ret) { |
| debug("Cannot create block device\n"); |
| return ret; |
| } |
| bdesc = dev_get_uclass_platdata(bdev); |
| mmc->cfg = cfg; |
| mmc->priv = dev; |
| |
| /* 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; |
| |
| return 0; |
| } |
| |
| int mmc_unbind(struct udevice *dev) |
| { |
| struct udevice *bdev; |
| |
| device_find_first_child(dev, &bdev); |
| if (bdev) { |
| device_remove(bdev, DM_REMOVE_NORMAL); |
| device_unbind(bdev); |
| } |
| |
| 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_platdata(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->if_type, 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; |
| } |
| |
| 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_alloc_size = sizeof(struct mmc_uclass_priv), |
| }; |