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394 lines
8.0 KiB
394 lines
8.0 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Copyright (C) 2015 Google, Inc |
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* Written by Simon Glass <[email protected]> |
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*/ |
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#include <common.h> |
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#include <mmc.h> |
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#include <dm.h> |
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#include <dm/device-internal.h> |
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#include <dm/lists.h> |
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#include "mmc_private.h" |
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int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, |
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struct mmc_data *data) |
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{ |
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struct mmc *mmc = mmc_get_mmc_dev(dev); |
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struct dm_mmc_ops *ops = mmc_get_ops(dev); |
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int ret; |
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mmmc_trace_before_send(mmc, cmd); |
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if (ops->send_cmd) |
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ret = ops->send_cmd(dev, cmd, data); |
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else |
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ret = -ENOSYS; |
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mmmc_trace_after_send(mmc, cmd, ret); |
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return ret; |
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} |
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int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) |
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{ |
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return dm_mmc_send_cmd(mmc->dev, cmd, data); |
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} |
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int dm_mmc_set_ios(struct udevice *dev) |
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{ |
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struct dm_mmc_ops *ops = mmc_get_ops(dev); |
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if (!ops->set_ios) |
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return -ENOSYS; |
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return ops->set_ios(dev); |
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} |
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int mmc_set_ios(struct mmc *mmc) |
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{ |
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return dm_mmc_set_ios(mmc->dev); |
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} |
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void dm_mmc_send_init_stream(struct udevice *dev) |
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{ |
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struct dm_mmc_ops *ops = mmc_get_ops(dev); |
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if (ops->send_init_stream) |
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ops->send_init_stream(dev); |
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} |
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void mmc_send_init_stream(struct mmc *mmc) |
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{ |
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dm_mmc_send_init_stream(mmc->dev); |
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} |
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#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) |
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int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout) |
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{ |
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struct dm_mmc_ops *ops = mmc_get_ops(dev); |
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if (!ops->wait_dat0) |
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return -ENOSYS; |
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return ops->wait_dat0(dev, state, timeout); |
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} |
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int mmc_wait_dat0(struct mmc *mmc, int state, int timeout) |
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{ |
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return dm_mmc_wait_dat0(mmc->dev, state, timeout); |
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} |
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#endif |
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int dm_mmc_get_wp(struct udevice *dev) |
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{ |
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struct dm_mmc_ops *ops = mmc_get_ops(dev); |
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if (!ops->get_wp) |
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return -ENOSYS; |
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return ops->get_wp(dev); |
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} |
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int mmc_getwp(struct mmc *mmc) |
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{ |
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return dm_mmc_get_wp(mmc->dev); |
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} |
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int dm_mmc_get_cd(struct udevice *dev) |
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{ |
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struct dm_mmc_ops *ops = mmc_get_ops(dev); |
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if (!ops->get_cd) |
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return -ENOSYS; |
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return ops->get_cd(dev); |
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} |
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int mmc_getcd(struct mmc *mmc) |
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{ |
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return dm_mmc_get_cd(mmc->dev); |
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} |
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#ifdef MMC_SUPPORTS_TUNING |
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int dm_mmc_execute_tuning(struct udevice *dev, uint opcode) |
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{ |
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struct dm_mmc_ops *ops = mmc_get_ops(dev); |
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if (!ops->execute_tuning) |
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return -ENOSYS; |
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return ops->execute_tuning(dev, opcode); |
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} |
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int mmc_execute_tuning(struct mmc *mmc, uint opcode) |
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{ |
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return dm_mmc_execute_tuning(mmc->dev, opcode); |
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} |
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#endif |
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int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg) |
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{ |
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int val; |
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val = dev_read_u32_default(dev, "bus-width", 1); |
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switch (val) { |
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case 0x8: |
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cfg->host_caps |= MMC_MODE_8BIT; |
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/* fall through */ |
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case 0x4: |
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cfg->host_caps |= MMC_MODE_4BIT; |
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/* fall through */ |
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case 0x1: |
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cfg->host_caps |= MMC_MODE_1BIT; |
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break; |
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default: |
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dev_err(dev, "Invalid \"bus-width\" value %u!\n", val); |
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return -EINVAL; |
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} |
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/* f_max is obtained from the optional "max-frequency" property */ |
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dev_read_u32(dev, "max-frequency", &cfg->f_max); |
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if (dev_read_bool(dev, "cap-sd-highspeed")) |
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cfg->host_caps |= MMC_CAP(SD_HS); |
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if (dev_read_bool(dev, "cap-mmc-highspeed")) |
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cfg->host_caps |= MMC_CAP(MMC_HS); |
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if (dev_read_bool(dev, "sd-uhs-sdr12")) |
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cfg->host_caps |= MMC_CAP(UHS_SDR12); |
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if (dev_read_bool(dev, "sd-uhs-sdr25")) |
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cfg->host_caps |= MMC_CAP(UHS_SDR25); |
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if (dev_read_bool(dev, "sd-uhs-sdr50")) |
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cfg->host_caps |= MMC_CAP(UHS_SDR50); |
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if (dev_read_bool(dev, "sd-uhs-sdr104")) |
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cfg->host_caps |= MMC_CAP(UHS_SDR104); |
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if (dev_read_bool(dev, "sd-uhs-ddr50")) |
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cfg->host_caps |= MMC_CAP(UHS_DDR50); |
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if (dev_read_bool(dev, "mmc-ddr-1_8v")) |
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cfg->host_caps |= MMC_CAP(MMC_DDR_52); |
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if (dev_read_bool(dev, "mmc-ddr-1_2v")) |
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cfg->host_caps |= MMC_CAP(MMC_DDR_52); |
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if (dev_read_bool(dev, "mmc-hs200-1_8v")) |
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cfg->host_caps |= MMC_CAP(MMC_HS_200); |
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if (dev_read_bool(dev, "mmc-hs200-1_2v")) |
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cfg->host_caps |= MMC_CAP(MMC_HS_200); |
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return 0; |
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} |
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struct mmc *mmc_get_mmc_dev(struct udevice *dev) |
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{ |
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struct mmc_uclass_priv *upriv; |
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if (!device_active(dev)) |
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return NULL; |
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upriv = dev_get_uclass_priv(dev); |
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return upriv->mmc; |
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} |
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#if CONFIG_IS_ENABLED(BLK) |
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struct mmc *find_mmc_device(int dev_num) |
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{ |
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struct udevice *dev, *mmc_dev; |
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int ret; |
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ret = blk_find_device(IF_TYPE_MMC, dev_num, &dev); |
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if (ret) { |
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#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) |
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printf("MMC Device %d not found\n", dev_num); |
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#endif |
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return NULL; |
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} |
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mmc_dev = dev_get_parent(dev); |
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struct mmc *mmc = mmc_get_mmc_dev(mmc_dev); |
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return mmc; |
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} |
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int get_mmc_num(void) |
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{ |
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return max((blk_find_max_devnum(IF_TYPE_MMC) + 1), 0); |
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} |
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int mmc_get_next_devnum(void) |
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{ |
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return blk_find_max_devnum(IF_TYPE_MMC); |
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} |
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struct blk_desc *mmc_get_blk_desc(struct mmc *mmc) |
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{ |
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struct blk_desc *desc; |
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struct udevice *dev; |
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device_find_first_child(mmc->dev, &dev); |
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if (!dev) |
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return NULL; |
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desc = dev_get_uclass_platdata(dev); |
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return desc; |
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} |
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void mmc_do_preinit(void) |
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{ |
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struct udevice *dev; |
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struct uclass *uc; |
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int ret; |
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ret = uclass_get(UCLASS_MMC, &uc); |
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if (ret) |
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return; |
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uclass_foreach_dev(dev, uc) { |
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struct mmc *m = mmc_get_mmc_dev(dev); |
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if (!m) |
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continue; |
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#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT |
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mmc_set_preinit(m, 1); |
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#endif |
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if (m->preinit) |
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mmc_start_init(m); |
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} |
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} |
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#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) |
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void print_mmc_devices(char separator) |
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{ |
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struct udevice *dev; |
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char *mmc_type; |
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bool first = true; |
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for (uclass_first_device(UCLASS_MMC, &dev); |
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dev; |
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uclass_next_device(&dev), first = false) { |
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struct mmc *m = mmc_get_mmc_dev(dev); |
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if (!first) { |
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printf("%c", separator); |
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if (separator != '\n') |
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puts(" "); |
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} |
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if (m->has_init) |
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mmc_type = IS_SD(m) ? "SD" : "eMMC"; |
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else |
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mmc_type = NULL; |
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printf("%s: %d", m->cfg->name, mmc_get_blk_desc(m)->devnum); |
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if (mmc_type) |
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printf(" (%s)", mmc_type); |
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} |
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printf("\n"); |
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} |
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#else |
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void print_mmc_devices(char separator) { } |
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#endif |
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int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg) |
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{ |
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struct blk_desc *bdesc; |
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struct udevice *bdev; |
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int ret, devnum = -1; |
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if (!mmc_get_ops(dev)) |
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return -ENOSYS; |
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#ifndef CONFIG_SPL_BUILD |
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/* Use the fixed index with aliase node's index */ |
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ret = dev_read_alias_seq(dev, &devnum); |
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debug("%s: alias ret=%d, devnum=%d\n", __func__, ret, devnum); |
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#endif |
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ret = blk_create_devicef(dev, "mmc_blk", "blk", IF_TYPE_MMC, |
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devnum, 512, 0, &bdev); |
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if (ret) { |
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debug("Cannot create block device\n"); |
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return ret; |
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} |
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bdesc = dev_get_uclass_platdata(bdev); |
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mmc->cfg = cfg; |
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mmc->priv = dev; |
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/* the following chunk was from mmc_register() */ |
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/* Setup dsr related values */ |
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mmc->dsr_imp = 0; |
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mmc->dsr = 0xffffffff; |
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/* Setup the universal parts of the block interface just once */ |
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bdesc->removable = 1; |
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/* setup initial part type */ |
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bdesc->part_type = cfg->part_type; |
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mmc->dev = dev; |
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return 0; |
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} |
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int mmc_unbind(struct udevice *dev) |
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{ |
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struct udevice *bdev; |
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device_find_first_child(dev, &bdev); |
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if (bdev) { |
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device_remove(bdev, DM_REMOVE_NORMAL); |
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device_unbind(bdev); |
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} |
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return 0; |
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} |
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static int mmc_select_hwpart(struct udevice *bdev, int hwpart) |
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{ |
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struct udevice *mmc_dev = dev_get_parent(bdev); |
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struct mmc *mmc = mmc_get_mmc_dev(mmc_dev); |
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struct blk_desc *desc = dev_get_uclass_platdata(bdev); |
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if (desc->hwpart == hwpart) |
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return 0; |
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if (mmc->part_config == MMCPART_NOAVAILABLE) |
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return -EMEDIUMTYPE; |
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return mmc_switch_part(mmc, hwpart); |
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} |
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static int mmc_blk_probe(struct udevice *dev) |
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{ |
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struct udevice *mmc_dev = dev_get_parent(dev); |
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struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc_dev); |
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struct mmc *mmc = upriv->mmc; |
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int ret; |
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ret = mmc_init(mmc); |
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if (ret) { |
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debug("%s: mmc_init() failed (err=%d)\n", __func__, ret); |
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return ret; |
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} |
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return 0; |
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} |
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static const struct blk_ops mmc_blk_ops = { |
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.read = mmc_bread, |
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#if CONFIG_IS_ENABLED(MMC_WRITE) |
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.write = mmc_bwrite, |
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.erase = mmc_berase, |
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#endif |
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.select_hwpart = mmc_select_hwpart, |
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}; |
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U_BOOT_DRIVER(mmc_blk) = { |
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.name = "mmc_blk", |
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.id = UCLASS_BLK, |
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.ops = &mmc_blk_ops, |
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.probe = mmc_blk_probe, |
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}; |
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#endif /* CONFIG_BLK */ |
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U_BOOT_DRIVER(mmc) = { |
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.name = "mmc", |
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.id = UCLASS_MMC, |
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}; |
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UCLASS_DRIVER(mmc) = { |
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.id = UCLASS_MMC, |
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.name = "mmc", |
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.flags = DM_UC_FLAG_SEQ_ALIAS, |
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.per_device_auto_alloc_size = sizeof(struct mmc_uclass_priv), |
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};
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