X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fmmc%2Fmmc.c;h=a6394bcf308f721b1b50ae8fd3cce5a2a96d796c;hb=b3dc016caade00e07d5ae45042c9be42f611d625;hp=a61e311ccaafe6231677cda5c24a0f9124505ae7;hpb=cd0b80ec9c97bdd9fb6642671efad8ef3cb33858;p=platform%2Fkernel%2Fu-boot.git diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index a61e311..a6394bc 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2008, Freescale Semiconductor, Inc + * Copyright 2020 NXP * Andy Fleming * * Based vaguely on the Linux code @@ -8,12 +9,16 @@ #include #include +#include #include #include +#include #include #include #include #include +#include +#include #include #include #include @@ -21,15 +26,13 @@ #include #include "mmc_private.h" +#define DEFAULT_CMD6_TIMEOUT_MS 500 + static int mmc_set_signal_voltage(struct mmc *mmc, uint signal_voltage); -static int mmc_power_cycle(struct mmc *mmc); -#if !CONFIG_IS_ENABLED(MMC_TINY) -static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps); -#endif #if !CONFIG_IS_ENABLED(DM_MMC) -static int mmc_wait_dat0(struct mmc *mmc, int state, int timeout) +static int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us) { return -ENOSYS; } @@ -134,7 +137,6 @@ const char *mmc_mode_name(enum bus_mode mode) { static const char *const names[] = { [MMC_LEGACY] = "MMC legacy", - [SD_LEGACY] = "SD Legacy", [MMC_HS] = "MMC High Speed (26MHz)", [SD_HS] = "SD High Speed (50MHz)", [UHS_SDR12] = "UHS SDR12 (25MHz)", @@ -146,6 +148,7 @@ const char *mmc_mode_name(enum bus_mode mode) [MMC_DDR_52] = "MMC DDR52 (52MHz)", [MMC_HS_200] = "HS200 (200MHz)", [MMC_HS_400] = "HS400 (200MHz)", + [MMC_HS_400_ES] = "HS400ES (200MHz)", }; if (mode >= MMC_MODES_END) @@ -159,7 +162,6 @@ static uint mmc_mode2freq(struct mmc *mmc, enum bus_mode mode) { static const int freqs[] = { [MMC_LEGACY] = 25000000, - [SD_LEGACY] = 25000000, [MMC_HS] = 26000000, [SD_HS] = 50000000, [MMC_HS_52] = 52000000, @@ -171,6 +173,7 @@ static uint mmc_mode2freq(struct mmc *mmc, enum bus_mode mode) [UHS_SDR104] = 208000000, [MMC_HS_200] = 200000000, [MMC_HS_400] = 200000000, + [MMC_HS_400_ES] = 200000000, }; if (mode == MMC_LEGACY) @@ -204,34 +207,73 @@ int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) } #endif +/** + * mmc_send_cmd_retry() - send a command to the mmc device, retrying on error + * + * @dev: device to receive the command + * @cmd: command to send + * @data: additional data to send/receive + * @retries: how many times to retry; mmc_send_cmd is always called at least + * once + * @return 0 if ok, -ve on error + */ +static int mmc_send_cmd_retry(struct mmc *mmc, struct mmc_cmd *cmd, + struct mmc_data *data, uint retries) +{ + int ret; + + do { + ret = mmc_send_cmd(mmc, cmd, data); + } while (ret && retries--); + + return ret; +} + +/** + * mmc_send_cmd_quirks() - send a command to the mmc device, retrying if a + * specific quirk is enabled + * + * @dev: device to receive the command + * @cmd: command to send + * @data: additional data to send/receive + * @quirk: retry only if this quirk is enabled + * @retries: how many times to retry; mmc_send_cmd is always called at least + * once + * @return 0 if ok, -ve on error + */ +static int mmc_send_cmd_quirks(struct mmc *mmc, struct mmc_cmd *cmd, + struct mmc_data *data, u32 quirk, uint retries) +{ + if (CONFIG_IS_ENABLED(MMC_QUIRKS) && mmc->quirks & quirk) + return mmc_send_cmd_retry(mmc, cmd, data, retries); + else + return mmc_send_cmd(mmc, cmd, data); +} + int mmc_send_status(struct mmc *mmc, unsigned int *status) { struct mmc_cmd cmd; - int err, retries = 5; + int ret; cmd.cmdidx = MMC_CMD_SEND_STATUS; cmd.resp_type = MMC_RSP_R1; if (!mmc_host_is_spi(mmc)) cmd.cmdarg = mmc->rca << 16; - while (retries--) { - err = mmc_send_cmd(mmc, &cmd, NULL); - if (!err) { - mmc_trace_state(mmc, &cmd); - *status = cmd.response[0]; - return 0; - } - } + ret = mmc_send_cmd_retry(mmc, &cmd, NULL, 4); mmc_trace_state(mmc, &cmd); - return -ECOMM; + if (!ret) + *status = cmd.response[0]; + + return ret; } -int mmc_poll_for_busy(struct mmc *mmc, int timeout) +int mmc_poll_for_busy(struct mmc *mmc, int timeout_ms) { unsigned int status; int err; - err = mmc_wait_dat0(mmc, 1, timeout); + err = mmc_wait_dat0(mmc, 1, timeout_ms * 1000); if (err != -ENOSYS) return err; @@ -252,13 +294,13 @@ int mmc_poll_for_busy(struct mmc *mmc, int timeout) return -ECOMM; } - if (timeout-- <= 0) + if (timeout_ms-- <= 0) break; udelay(1000); } - if (timeout <= 0) { + if (timeout_ms <= 0) { #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) pr_err("Timeout waiting card ready\n"); #endif @@ -271,7 +313,6 @@ int mmc_poll_for_busy(struct mmc *mmc, int timeout) int mmc_set_blocklen(struct mmc *mmc, int len) { struct mmc_cmd cmd; - int err; if (mmc->ddr_mode) return 0; @@ -280,24 +321,8 @@ int mmc_set_blocklen(struct mmc *mmc, int len) cmd.resp_type = MMC_RSP_R1; cmd.cmdarg = len; - err = mmc_send_cmd(mmc, &cmd, NULL); - -#ifdef CONFIG_MMC_QUIRKS - if (err && (mmc->quirks & MMC_QUIRK_RETRY_SET_BLOCKLEN)) { - int retries = 4; - /* - * It has been seen that SET_BLOCKLEN may fail on the first - * attempt, let's try a few more time - */ - do { - err = mmc_send_cmd(mmc, &cmd, NULL); - if (!err) - break; - } while (retries--); - } -#endif - - return err; + return mmc_send_cmd_quirks(mmc, &cmd, NULL, + MMC_QUIRK_RETRY_SET_BLOCKLEN, 4); } #ifdef MMC_SUPPORTS_TUNING @@ -411,6 +436,16 @@ static int mmc_read_blocks(struct mmc *mmc, void *dst, lbaint_t start, return blkcnt; } +#if !CONFIG_IS_ENABLED(DM_MMC) +static int mmc_get_b_max(struct mmc *mmc, void *dst, lbaint_t blkcnt) +{ + if (mmc->cfg->ops->get_b_max) + return mmc->cfg->ops->get_b_max(mmc, dst, blkcnt); + else + return mmc->cfg->b_max; +} +#endif + #if CONFIG_IS_ENABLED(BLK) ulong mmc_bread(struct udevice *dev, lbaint_t start, lbaint_t blkcnt, void *dst) #else @@ -424,6 +459,7 @@ ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt, int dev_num = block_dev->devnum; int err; lbaint_t cur, blocks_todo = blkcnt; + uint b_max; if (blkcnt == 0) return 0; @@ -453,9 +489,10 @@ ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt, return 0; } + b_max = mmc_get_b_max(mmc, dst, blkcnt); + do { - cur = (blocks_todo > mmc->cfg->b_max) ? - mmc->cfg->b_max : blocks_todo; + cur = (blocks_todo > b_max) ? b_max : blocks_todo; if (mmc_read_blocks(mmc, dst, start, cur) != cur) { pr_debug("%s: Failed to read blocks\n", __func__); return 0; @@ -655,12 +692,15 @@ static int mmc_send_op_cond_iter(struct mmc *mmc, int use_arg) static int mmc_send_op_cond(struct mmc *mmc) { int err, i; + int timeout = 1000; + uint start; /* Some cards seem to need this */ mmc_go_idle(mmc); + start = get_timer(0); /* Asking to the card its capabilities */ - for (i = 0; i < 2; i++) { + for (i = 0; ; i++) { err = mmc_send_op_cond_iter(mmc, i != 0); if (err) return err; @@ -668,6 +708,10 @@ static int mmc_send_op_cond(struct mmc *mmc) /* exit if not busy (flag seems to be inverted) */ if (mmc->ocr & OCR_BUSY) break; + + if (get_timer(start) > timeout) + return -ETIMEDOUT; + udelay(100); } mmc->op_cond_pending = 1; return 0; @@ -720,7 +764,7 @@ static int mmc_complete_op_cond(struct mmc *mmc) } -static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) +int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) { struct mmc_cmd cmd; struct mmc_data data; @@ -744,36 +788,65 @@ static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) static int __mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value, bool send_status) { + unsigned int status, start; struct mmc_cmd cmd; - int timeout = 1000; - int retries = 3; + int timeout_ms = DEFAULT_CMD6_TIMEOUT_MS; + bool is_part_switch = (set == EXT_CSD_CMD_SET_NORMAL) && + (index == EXT_CSD_PART_CONF); int ret; + if (mmc->gen_cmd6_time) + timeout_ms = mmc->gen_cmd6_time * 10; + + if (is_part_switch && mmc->part_switch_time) + timeout_ms = mmc->part_switch_time * 10; + cmd.cmdidx = MMC_CMD_SWITCH; cmd.resp_type = MMC_RSP_R1b; cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) | (index << 16) | (value << 8); - while (retries > 0) { - ret = mmc_send_cmd(mmc, &cmd, NULL); + ret = mmc_send_cmd_retry(mmc, &cmd, NULL, 3); + if (ret) + return ret; - if (ret) { - retries--; - continue; - } + start = get_timer(0); - if (!send_status) { - mdelay(50); - return 0; - } + /* poll dat0 for rdy/buys status */ + ret = mmc_wait_dat0(mmc, 1, timeout_ms * 1000); + if (ret && ret != -ENOSYS) + return ret; - /* Waiting for the ready status */ - return mmc_poll_for_busy(mmc, timeout); + /* + * In cases when not allowed to poll by using CMD13 or because we aren't + * capable of polling by using mmc_wait_dat0, then rely on waiting the + * stated timeout to be sufficient. + */ + if (ret == -ENOSYS && !send_status) { + mdelay(timeout_ms); + return 0; } - return ret; + /* Finally wait until the card is ready or indicates a failure + * to switch. It doesn't hurt to use CMD13 here even if send_status + * is false, because by now (after 'timeout_ms' ms) the bus should be + * reliable. + */ + do { + ret = mmc_send_status(mmc, &status); + + if (!ret && (status & MMC_STATUS_SWITCH_ERROR)) { + pr_debug("switch failed %d/%d/0x%x !\n", set, index, + value); + return -EIO; + } + if (!ret && (status & MMC_STATUS_RDY_FOR_DATA)) + return 0; + udelay(100); + } while (get_timer(start) < timeout_ms); + return -ETIMEDOUT; } int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value) @@ -781,6 +854,11 @@ int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value) return __mmc_switch(mmc, set, index, value, true); } +int mmc_boot_wp(struct mmc *mmc) +{ + return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_WP, 1); +} + #if !CONFIG_IS_ENABLED(MMC_TINY) static int mmc_set_card_speed(struct mmc *mmc, enum bus_mode mode, bool hsdowngrade) @@ -806,6 +884,11 @@ static int mmc_set_card_speed(struct mmc *mmc, enum bus_mode mode, speed_bits = EXT_CSD_TIMING_HS400; break; #endif +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) + case MMC_HS_400_ES: + speed_bits = EXT_CSD_TIMING_HS400; + break; +#endif case MMC_LEGACY: speed_bits = EXT_CSD_TIMING_LEGACY; break; @@ -876,7 +959,8 @@ static int mmc_get_capabilities(struct mmc *mmc) mmc->card_caps |= MMC_MODE_HS200; } #endif -#if CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) +#if CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) || \ + CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) if (cardtype & (EXT_CSD_CARD_TYPE_HS400_1_2V | EXT_CSD_CARD_TYPE_HS400_1_8V)) { mmc->card_caps |= MMC_MODE_HS400; @@ -890,6 +974,13 @@ static int mmc_get_capabilities(struct mmc *mmc) if (cardtype & EXT_CSD_CARD_TYPE_26) mmc->card_caps |= MMC_MODE_HS; +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) + if (ext_csd[EXT_CSD_STROBE_SUPPORT] && + (mmc->card_caps & MMC_MODE_HS400)) { + mmc->card_caps |= MMC_MODE_HS400_ES; + } +#endif + return 0; } #endif @@ -922,49 +1013,17 @@ static int mmc_set_capacity(struct mmc *mmc, int part_num) return 0; } -#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) -static int mmc_boot_part_access_chk(struct mmc *mmc, unsigned int part_num) -{ - int forbidden = 0; - bool change = false; - - if (part_num & PART_ACCESS_MASK) - forbidden = MMC_CAP(MMC_HS_200) | MMC_CAP(MMC_HS_400); - - if (MMC_CAP(mmc->selected_mode) & forbidden) { - pr_debug("selected mode (%s) is forbidden for part %d\n", - mmc_mode_name(mmc->selected_mode), part_num); - change = true; - } else if (mmc->selected_mode != mmc->best_mode) { - pr_debug("selected mode is not optimal\n"); - change = true; - } - - if (change) - return mmc_select_mode_and_width(mmc, - mmc->card_caps & ~forbidden); - - return 0; -} -#else -static inline int mmc_boot_part_access_chk(struct mmc *mmc, - unsigned int part_num) -{ - return 0; -} -#endif - int mmc_switch_part(struct mmc *mmc, unsigned int part_num) { int ret; + int retry = 3; - ret = mmc_boot_part_access_chk(mmc, part_num); - if (ret) - return ret; - - ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF, - (mmc->part_config & ~PART_ACCESS_MASK) - | (part_num & PART_ACCESS_MASK)); + do { + ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_PART_CONF, + (mmc->part_config & ~PART_ACCESS_MASK) + | (part_num & PART_ACCESS_MASK)); + } while (ret && retry--); /* * Set the capacity if the switch succeeded or was intended @@ -1110,9 +1169,11 @@ int mmc_hwpart_config(struct mmc *mmc, ext_csd[EXT_CSD_ERASE_GROUP_DEF] = 1; +#if CONFIG_IS_ENABLED(MMC_WRITE) /* update erase group size to be high-capacity */ mmc->erase_grp_size = ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 1024; +#endif } @@ -1225,7 +1286,7 @@ static int sd_get_capabilities(struct mmc *mmc) u32 sd3_bus_mode; #endif - mmc->card_caps = MMC_MODE_1BIT | MMC_CAP(SD_LEGACY); + mmc->card_caps = MMC_MODE_1BIT | MMC_CAP(MMC_LEGACY); if (mmc_host_is_spi(mmc)) return 0; @@ -1244,22 +1305,15 @@ static int sd_get_capabilities(struct mmc *mmc) cmd.resp_type = MMC_RSP_R1; cmd.cmdarg = 0; - timeout = 3; - -retry_scr: data.dest = (char *)scr; data.blocksize = 8; data.blocks = 1; data.flags = MMC_DATA_READ; - err = mmc_send_cmd(mmc, &cmd, &data); - - if (err) { - if (timeout--) - goto retry_scr; + err = mmc_send_cmd_retry(mmc, &cmd, &data, 3); + if (err) return err; - } mmc->scr[0] = __be32_to_cpu(scr[0]); mmc->scr[1] = __be32_to_cpu(scr[1]); @@ -1338,7 +1392,7 @@ static int sd_set_card_speed(struct mmc *mmc, enum bus_mode mode) return 0; switch (mode) { - case SD_LEGACY: + case MMC_LEGACY: speed = UHS_SDR12_BUS_SPEED; break; case SD_HS: @@ -1420,14 +1474,13 @@ static int sd_read_ssr(struct mmc *mmc) struct mmc_cmd cmd; ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16); struct mmc_data data; - int timeout = 3; unsigned int au, eo, et, es; cmd.cmdidx = MMC_CMD_APP_CMD; cmd.resp_type = MMC_RSP_R1; cmd.cmdarg = mmc->rca << 16; - err = mmc_send_cmd(mmc, &cmd, NULL); + err = mmc_send_cmd_quirks(mmc, &cmd, NULL, MMC_QUIRK_RETRY_APP_CMD, 4); if (err) return err; @@ -1435,19 +1488,14 @@ static int sd_read_ssr(struct mmc *mmc) cmd.resp_type = MMC_RSP_R1; cmd.cmdarg = 0; -retry_ssr: data.dest = (char *)ssr; data.blocksize = 64; data.blocks = 1; data.flags = MMC_DATA_READ; - err = mmc_send_cmd(mmc, &cmd, &data); - if (err) { - if (timeout--) - goto retry_ssr; - + err = mmc_send_cmd_retry(mmc, &cmd, &data, 3); + if (err) return err; - } for (i = 0; i < 16; i++) ssr[i] = be32_to_cpu(ssr[i]); @@ -1530,6 +1578,16 @@ static int mmc_set_ios(struct mmc *mmc) return ret; } + +static int mmc_host_power_cycle(struct mmc *mmc) +{ + int ret = 0; + + if (mmc->cfg->ops->host_power_cycle) + ret = mmc->cfg->ops->host_power_cycle(mmc); + + return ret; +} #endif int mmc_set_clock(struct mmc *mmc, uint clock, bool disable) @@ -1657,7 +1715,7 @@ static const struct mode_width_tuning sd_modes_by_pref[] = { }, #endif { - .mode = SD_LEGACY, + .mode = MMC_LEGACY, .widths = MMC_MODE_4BIT | MMC_MODE_1BIT, } }; @@ -1685,6 +1743,18 @@ static int sd_select_mode_and_width(struct mmc *mmc, uint card_caps) mmc_dump_capabilities("host", mmc->host_caps); #endif + if (mmc_host_is_spi(mmc)) { + mmc_set_bus_width(mmc, 1); + mmc_select_mode(mmc, MMC_LEGACY); + mmc_set_clock(mmc, mmc->tran_speed, MMC_CLK_ENABLE); +#if CONFIG_IS_ENABLED(MMC_WRITE) + err = sd_read_ssr(mmc); + if (err) + pr_warn("unable to read ssr\n"); +#endif + return 0; + } + /* Restrict card's capabilities by what the host can do */ caps = card_caps & mmc->host_caps; @@ -1739,7 +1809,7 @@ static int sd_select_mode_and_width(struct mmc *mmc, uint card_caps) error: /* revert to a safer bus speed */ - mmc_select_mode(mmc, SD_LEGACY); + mmc_select_mode(mmc, MMC_LEGACY); mmc_set_clock(mmc, mmc->tran_speed, MMC_CLK_ENABLE); } @@ -1791,6 +1861,7 @@ static int mmc_set_lowest_voltage(struct mmc *mmc, enum bus_mode mode, u32 card_mask = 0; switch (mode) { + case MMC_HS_400_ES: case MMC_HS_400: case MMC_HS_200: if (mmc->cardtype & (EXT_CSD_CARD_TYPE_HS200_1_8V | @@ -1833,6 +1904,12 @@ static inline int mmc_set_lowest_voltage(struct mmc *mmc, enum bus_mode mode, #endif static const struct mode_width_tuning mmc_modes_by_pref[] = { +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) + { + .mode = MMC_HS_400_ES, + .widths = MMC_MODE_8BIT, + }, +#endif #if CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) { .mode = MMC_HS_400, @@ -1898,7 +1975,9 @@ static int mmc_select_hs400(struct mmc *mmc) mmc_set_clock(mmc, mmc->tran_speed, false); /* execute tuning if needed */ + mmc->hs400_tuning = 1; err = mmc_execute_tuning(mmc, MMC_CMD_SEND_TUNING_BLOCK_HS200); + mmc->hs400_tuning = 0; if (err) { debug("tuning failed\n"); return err; @@ -1907,6 +1986,10 @@ static int mmc_select_hs400(struct mmc *mmc) /* Set back to HS */ mmc_set_card_speed(mmc, MMC_HS, true); + err = mmc_hs400_prepare_ddr(mmc); + if (err) + return err; + err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, EXT_CSD_BUS_WIDTH_8 | EXT_CSD_DDR_FLAG); if (err) @@ -1930,6 +2013,47 @@ static int mmc_select_hs400(struct mmc *mmc) } #endif +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) +#if !CONFIG_IS_ENABLED(DM_MMC) +static int mmc_set_enhanced_strobe(struct mmc *mmc) +{ + return -ENOTSUPP; +} +#endif +static int mmc_select_hs400es(struct mmc *mmc) +{ + int err; + + err = mmc_set_card_speed(mmc, MMC_HS, true); + if (err) + return err; + + err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, + EXT_CSD_BUS_WIDTH_8 | EXT_CSD_DDR_FLAG | + EXT_CSD_BUS_WIDTH_STROBE); + if (err) { + printf("switch to bus width for hs400 failed\n"); + return err; + } + /* TODO: driver strength */ + err = mmc_set_card_speed(mmc, MMC_HS_400_ES, false); + if (err) + return err; + + mmc_select_mode(mmc, MMC_HS_400_ES); + err = mmc_set_clock(mmc, mmc->tran_speed, false); + if (err) + return err; + + return mmc_set_enhanced_strobe(mmc); +} +#else +static int mmc_select_hs400es(struct mmc *mmc) +{ + return -ENOTSUPP; +} +#endif + #define for_each_supported_width(caps, ddr, ecbv) \ for (ecbv = ext_csd_bus_width;\ ecbv < ext_csd_bus_width + ARRAY_SIZE(ext_csd_bus_width);\ @@ -1947,6 +2071,13 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps) mmc_dump_capabilities("host", mmc->host_caps); #endif + if (mmc_host_is_spi(mmc)) { + mmc_set_bus_width(mmc, 1); + mmc_select_mode(mmc, MMC_LEGACY); + mmc_set_clock(mmc, mmc->tran_speed, MMC_CLK_ENABLE); + return 0; + } + /* Restrict card's capabilities by what the host can do */ card_caps &= mmc->host_caps; @@ -2001,6 +2132,13 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps) printf("Select HS400 failed %d\n", err); goto error; } + } else if (mwt->mode == MMC_HS_400_ES) { + err = mmc_select_hs400es(mmc); + if (err) { + printf("Select HS400ES failed %d\n", + err); + goto error; + } } else { /* configure the bus speed (card) */ err = mmc_set_card_speed(mmc, mwt->mode, false); @@ -2032,7 +2170,7 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps) err = mmc_execute_tuning(mmc, mwt->tuning); if (err) { - pr_debug("tuning failed\n"); + pr_debug("tuning failed : %d\n", err); goto error; } } @@ -2045,7 +2183,7 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps) return 0; error: mmc_set_signal_voltage(mmc, old_voltage); - /* if an error occured, revert to a safer bus mode */ + /* if an error occurred, revert to a safer bus mode */ mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, EXT_CSD_BUS_WIDTH_1); mmc_select_mode(mmc, MMC_LEGACY); @@ -2053,7 +2191,7 @@ error: } } - pr_err("unable to select a mode\n"); + pr_err("unable to select a mode : %d\n", err); return -ENOTSUPP; } @@ -2135,6 +2273,9 @@ static int mmc_startup_v4(struct mmc *mmc) mmc->capacity_user = capacity; } + if (mmc->version >= MMC_VERSION_4_5) + mmc->gen_cmd6_time = ext_csd[EXT_CSD_GENERIC_CMD6_TIME]; + /* The partition data may be non-zero but it is only * effective if PARTITION_SETTING_COMPLETED is set in * EXT_CSD, so ignore any data if this bit is not set, @@ -2144,6 +2285,11 @@ static int mmc_startup_v4(struct mmc *mmc) part_completed = !!(ext_csd[EXT_CSD_PARTITION_SETTING] & EXT_CSD_PARTITION_SETTING_COMPLETED); + mmc->part_switch_time = ext_csd[EXT_CSD_PART_SWITCH_TIME]; + /* Some eMMC set the value too low so set a minimum */ + if (mmc->part_switch_time < MMC_MIN_PART_SWITCH_TIME && mmc->part_switch_time) + mmc->part_switch_time = MMC_MIN_PART_SWITCH_TIME; + /* store the partition info of emmc */ mmc->part_support = ext_csd[EXT_CSD_PARTITIONING_SUPPORT]; if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) || @@ -2286,23 +2432,7 @@ static int mmc_startup(struct mmc *mmc) cmd.resp_type = MMC_RSP_R2; cmd.cmdarg = 0; - err = mmc_send_cmd(mmc, &cmd, NULL); - -#ifdef CONFIG_MMC_QUIRKS - if (err && (mmc->quirks & MMC_QUIRK_RETRY_SEND_CID)) { - int retries = 4; - /* - * It has been seen that SEND_CID may fail on the first - * attempt, let's try a few more time - */ - do { - err = mmc_send_cmd(mmc, &cmd, NULL); - if (!err) - break; - } while (retries--); - } -#endif - + err = mmc_send_cmd_quirks(mmc, &cmd, NULL, MMC_QUIRK_RETRY_SEND_CID, 4); if (err) return err; @@ -2446,7 +2576,7 @@ static int mmc_startup(struct mmc *mmc) #if CONFIG_IS_ENABLED(MMC_TINY) mmc_set_clock(mmc, mmc->legacy_speed, false); - mmc_select_mode(mmc, IS_SD(mmc) ? SD_LEGACY : MMC_LEGACY); + mmc_select_mode(mmc, MMC_LEGACY); mmc_set_bus_width(mmc, 1); #else if (IS_SD(mmc)) { @@ -2458,7 +2588,7 @@ static int mmc_startup(struct mmc *mmc) err = mmc_get_capabilities(mmc); if (err) return err; - mmc_select_mode_and_width(mmc, mmc->card_caps); + err = mmc_select_mode_and_width(mmc, mmc->card_caps); } #endif if (err) @@ -2484,7 +2614,7 @@ static int mmc_startup(struct mmc *mmc) bdesc->lba = lldiv(mmc->capacity, mmc->read_bl_len); #if !defined(CONFIG_SPL_BUILD) || \ (defined(CONFIG_SPL_LIBCOMMON_SUPPORT) && \ - !defined(CONFIG_USE_TINY_PRINTF)) + !CONFIG_IS_ENABLED(USE_TINY_PRINTF)) sprintf(bdesc->vendor, "Man %06x Snr %04x%04x", mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff), (mmc->cid[3] >> 16) & 0xffff); @@ -2590,8 +2720,8 @@ static int mmc_power_on(struct mmc *mmc) if (mmc->vmmc_supply) { int ret = regulator_set_enable(mmc->vmmc_supply, true); - if (ret) { - puts("Error enabling VMMC supply\n"); + if (ret && ret != -EACCES) { + printf("Error enabling VMMC supply : %d\n", ret); return ret; } } @@ -2606,8 +2736,8 @@ static int mmc_power_off(struct mmc *mmc) if (mmc->vmmc_supply) { int ret = regulator_set_enable(mmc->vmmc_supply, false); - if (ret) { - pr_debug("Error disabling VMMC supply\n"); + if (ret && ret != -EACCES) { + pr_debug("Error disabling VMMC supply : %d\n", ret); return ret; } } @@ -2622,6 +2752,11 @@ static int mmc_power_cycle(struct mmc *mmc) ret = mmc_power_off(mmc); if (ret) return ret; + + ret = mmc_host_power_cycle(mmc); + if (ret) + return ret; + /* * SD spec recommends at least 1ms of delay. Let's wait for 2ms * to be on the safer side. @@ -2638,16 +2773,14 @@ int mmc_get_op_cond(struct mmc *mmc) if (mmc->has_init) return 0; -#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT - mmc_adapter_card_type_ident(); -#endif err = mmc_power_init(mmc); if (err) return err; #ifdef CONFIG_MMC_QUIRKS mmc->quirks = MMC_QUIRK_RETRY_SET_BLOCKLEN | - MMC_QUIRK_RETRY_SEND_CID; + MMC_QUIRK_RETRY_SEND_CID | + MMC_QUIRK_RETRY_APP_CMD; #endif err = mmc_power_cycle(mmc); @@ -2666,13 +2799,17 @@ int mmc_get_op_cond(struct mmc *mmc) return err; #if CONFIG_IS_ENABLED(DM_MMC) - /* The device has already been probed ready for use */ + /* + * Re-initialization is needed to clear old configuration for + * mmc rescan. + */ + err = mmc_reinit(mmc); #else /* made sure it's not NULL earlier */ err = mmc->cfg->ops->init(mmc); +#endif if (err) return err; -#endif mmc->ddr_mode = 0; retry: @@ -2684,7 +2821,7 @@ retry: if (err) return err; - /* The internal partition reset to user partition(0) at every CMD0*/ + /* The internal partition reset to user partition(0) at every CMD0 */ mmc_get_blk_desc(mmc)->hwpart = 0; /* Test for SD version 2 */ @@ -2704,7 +2841,7 @@ retry: if (err) { #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) - pr_err("Card did not respond to voltage select!\n"); + pr_err("Card did not respond to voltage select! : %d\n", err); #endif return -EOPNOTSUPP; } @@ -2722,16 +2859,18 @@ int mmc_start_init(struct mmc *mmc) * all hosts are capable of 1 bit bus-width and able to use the legacy * timings. */ - mmc->host_caps = mmc->cfg->host_caps | MMC_CAP(SD_LEGACY) | + mmc->host_caps = mmc->cfg->host_caps | MMC_CAP(MMC_LEGACY) | MMC_CAP(MMC_LEGACY) | MMC_MODE_1BIT; - +#if CONFIG_IS_ENABLED(DM_MMC) + mmc_deferred_probe(mmc); +#endif #if !defined(CONFIG_MMC_BROKEN_CD) - /* we pretend there's no card when init is NULL */ no_card = mmc_getcd(mmc) == 0; #else no_card = 0; #endif #if !CONFIG_IS_ENABLED(DM_MMC) + /* we pretend there's no card when init is NULL */ no_card = no_card || (mmc->cfg->ops->init == NULL); #endif if (no_card) { @@ -2825,13 +2964,13 @@ int mmc_set_dsr(struct mmc *mmc, u16 val) } /* CPU-specific MMC initializations */ -__weak int cpu_mmc_init(bd_t *bis) +__weak int cpu_mmc_init(struct bd_info *bis) { return -1; } /* board-specific MMC initializations. */ -__weak int board_mmc_init(bd_t *bis) +__weak int board_mmc_init(struct bd_info *bis) { return -1; } @@ -2842,7 +2981,7 @@ void mmc_set_preinit(struct mmc *mmc, int preinit) } #if CONFIG_IS_ENABLED(DM_MMC) -static int mmc_probe(bd_t *bis) +static int mmc_probe(struct bd_info *bis) { int ret, i; struct uclass *uc; @@ -2871,7 +3010,7 @@ static int mmc_probe(bd_t *bis) return 0; } #else -static int mmc_probe(bd_t *bis) +static int mmc_probe(struct bd_info *bis) { if (board_mmc_init(bis) < 0) cpu_mmc_init(bis); @@ -2880,7 +3019,7 @@ static int mmc_probe(bd_t *bis) } #endif -int mmc_initialize(bd_t *bis) +int mmc_initialize(struct bd_info *bis) { static int initialized = 0; int ret; @@ -2905,6 +3044,27 @@ int mmc_initialize(bd_t *bis) return 0; } +#if CONFIG_IS_ENABLED(DM_MMC) +int mmc_init_device(int num) +{ + struct udevice *dev; + struct mmc *m; + int ret; + + ret = uclass_get_device(UCLASS_MMC, num, &dev); + if (ret) + return ret; + + m = mmc_get_mmc_dev(dev); + if (!m) + return 0; + if (m->preinit) + mmc_start_init(m); + + return 0; +} +#endif + #ifdef CONFIG_CMD_BKOPS_ENABLE int mmc_set_bkops_enable(struct mmc *mmc) { @@ -2938,3 +3098,12 @@ int mmc_set_bkops_enable(struct mmc *mmc) return 0; } #endif + +__weak int mmc_get_env_dev(void) +{ +#ifdef CONFIG_SYS_MMC_ENV_DEV + return CONFIG_SYS_MMC_ENV_DEV; +#else + return 0; +#endif +}