Lines Matching +full:pins +full:- +full:cmd +full:- +full:dat
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * linux/drivers/mmc/host/sdhci.c - Secure Digital Host Controller Interface driver
5 * Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved.
9 * - JMicron (hardware and technical support)
19 #include <linux/dma-mapping.h>
33 #include <linux/mmc/slot-gpio.h>
40 pr_debug("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
43 pr_err("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
52 static bool sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd);
73 SDHCI_DUMP("Wake-up: 0x%08x | Clock: 0x%08x\n", in sdhci_dumpregs()
88 SDHCI_DUMP("Cmd: 0x%08x | Max curr: 0x%08x\n", in sdhci_dumpregs()
100 if (host->flags & SDHCI_USE_ADMA) { in sdhci_dumpregs()
101 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_dumpregs()
113 if (host->ops->dump_vendor_regs) in sdhci_dumpregs()
114 host->ops->dump_vendor_regs(host); in sdhci_dumpregs()
144 host->v4_mode = true; in sdhci_enable_v4_mode()
149 static inline bool sdhci_data_line_cmd(struct mmc_command *cmd) in sdhci_data_line_cmd() argument
151 return cmd->data || cmd->flags & MMC_RSP_BUSY; in sdhci_data_line_cmd()
158 if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) || in sdhci_set_card_detection()
159 !mmc_card_is_removable(host->mmc) || mmc_can_gpio_cd(host->mmc)) in sdhci_set_card_detection()
166 host->ier |= present ? SDHCI_INT_CARD_REMOVE : in sdhci_set_card_detection()
169 host->ier &= ~(SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT); in sdhci_set_card_detection()
172 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_card_detection()
173 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_card_detection()
188 if (host->bus_on) in sdhci_runtime_pm_bus_on()
190 host->bus_on = true; in sdhci_runtime_pm_bus_on()
191 pm_runtime_get_noresume(mmc_dev(host->mmc)); in sdhci_runtime_pm_bus_on()
196 if (!host->bus_on) in sdhci_runtime_pm_bus_off()
198 host->bus_on = false; in sdhci_runtime_pm_bus_off()
199 pm_runtime_put_noidle(mmc_dev(host->mmc)); in sdhci_runtime_pm_bus_off()
209 host->clock = 0; in sdhci_reset()
210 /* Reset-all turns off SD Bus Power */ in sdhci_reset()
211 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_reset()
226 mmc_hostname(host->mmc), (int)mask); in sdhci_reset()
238 if (host->quirks & SDHCI_QUIRK_NO_CARD_NO_RESET) { in sdhci_do_reset()
239 struct mmc_host *mmc = host->mmc; in sdhci_do_reset()
241 if (!mmc->ops->get_cd(mmc)) in sdhci_do_reset()
245 host->ops->reset(host, mask); in sdhci_do_reset()
253 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_reset_for_all()
254 if (host->ops->enable_dma) in sdhci_reset_for_all()
255 host->ops->enable_dma(host); in sdhci_reset_for_all()
258 host->preset_enabled = false; in sdhci_reset_for_all()
294 host->ier = SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT | in sdhci_set_default_irqs()
300 if (host->tuning_mode == SDHCI_TUNING_MODE_2 || in sdhci_set_default_irqs()
301 host->tuning_mode == SDHCI_TUNING_MODE_3) in sdhci_set_default_irqs()
302 host->ier |= SDHCI_INT_RETUNE; in sdhci_set_default_irqs()
304 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_default_irqs()
305 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_default_irqs()
313 if (host->version < SDHCI_SPEC_200) in sdhci_config_dma()
324 if (!(host->flags & SDHCI_REQ_USE_DMA)) in sdhci_config_dma()
328 if (host->flags & SDHCI_USE_ADMA) in sdhci_config_dma()
331 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_config_dma()
333 * If v4 mode, all supported DMA can be 64-bit addressing if in sdhci_config_dma()
334 * controller supports 64-bit system address, otherwise only in sdhci_config_dma()
335 * ADMA can support 64-bit addressing. in sdhci_config_dma()
337 if (host->v4_mode) { in sdhci_config_dma()
341 } else if (host->flags & SDHCI_USE_ADMA) { in sdhci_config_dma()
356 struct mmc_host *mmc = host->mmc; in sdhci_init()
364 if (host->v4_mode) in sdhci_init()
367 spin_lock_irqsave(&host->lock, flags); in sdhci_init()
369 spin_unlock_irqrestore(&host->lock, flags); in sdhci_init()
371 host->cqe_on = false; in sdhci_init()
375 host->clock = 0; in sdhci_init()
376 host->reinit_uhs = true; in sdhci_init()
377 mmc->ops->set_ios(mmc, &mmc->ios); in sdhci_init()
383 u32 cd = host->ier & (SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT); in sdhci_reinit()
394 if (cd != (host->ier & (SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT))) in sdhci_reinit()
395 mmc_detect_change(host->mmc, msecs_to_jiffies(200)); in sdhci_reinit()
402 if (host->quirks & SDHCI_QUIRK_NO_LED) in __sdhci_led_activate()
414 if (host->quirks & SDHCI_QUIRK_NO_LED) in __sdhci_led_deactivate()
429 spin_lock_irqsave(&host->lock, flags); in sdhci_led_control()
431 if (host->runtime_suspended) in sdhci_led_control()
439 spin_unlock_irqrestore(&host->lock, flags); in sdhci_led_control()
444 struct mmc_host *mmc = host->mmc; in sdhci_led_register()
446 if (host->quirks & SDHCI_QUIRK_NO_LED) in sdhci_led_register()
449 snprintf(host->led_name, sizeof(host->led_name), in sdhci_led_register()
452 host->led.name = host->led_name; in sdhci_led_register()
453 host->led.brightness = LED_OFF; in sdhci_led_register()
454 host->led.default_trigger = mmc_hostname(mmc); in sdhci_led_register()
455 host->led.brightness_set = sdhci_led_control; in sdhci_led_register()
457 return led_classdev_register(mmc_dev(mmc), &host->led); in sdhci_led_register()
462 if (host->quirks & SDHCI_QUIRK_NO_LED) in sdhci_led_unregister()
465 led_classdev_unregister(&host->led); in sdhci_led_unregister()
502 if (sdhci_data_line_cmd(mrq->cmd)) in sdhci_mod_timer()
503 mod_timer(&host->data_timer, timeout); in sdhci_mod_timer()
505 mod_timer(&host->timer, timeout); in sdhci_mod_timer()
510 if (sdhci_data_line_cmd(mrq->cmd)) in sdhci_del_timer()
511 del_timer(&host->data_timer); in sdhci_del_timer()
513 del_timer(&host->timer); in sdhci_del_timer()
518 return host->cmd || host->data_cmd; in sdhci_has_requests()
536 blksize = host->data->blksz; in sdhci_read_block_pio()
542 BUG_ON(!sg_miter_next(&host->sg_miter)); in sdhci_read_block_pio()
544 len = min(host->sg_miter.length, blksize); in sdhci_read_block_pio()
546 blksize -= len; in sdhci_read_block_pio()
547 host->sg_miter.consumed = len; in sdhci_read_block_pio()
549 buf = host->sg_miter.addr; in sdhci_read_block_pio()
561 chunk--; in sdhci_read_block_pio()
562 len--; in sdhci_read_block_pio()
566 sg_miter_stop(&host->sg_miter); in sdhci_read_block_pio()
580 blksize = host->data->blksz; in sdhci_write_block_pio()
587 BUG_ON(!sg_miter_next(&host->sg_miter)); in sdhci_write_block_pio()
589 len = min(host->sg_miter.length, blksize); in sdhci_write_block_pio()
591 blksize -= len; in sdhci_write_block_pio()
592 host->sg_miter.consumed = len; in sdhci_write_block_pio()
594 buf = host->sg_miter.addr; in sdhci_write_block_pio()
601 len--; in sdhci_write_block_pio()
611 sg_miter_stop(&host->sg_miter); in sdhci_write_block_pio()
620 if (host->blocks == 0) in sdhci_transfer_pio()
623 if (host->data->flags & MMC_DATA_READ) in sdhci_transfer_pio()
633 if ((host->quirks & SDHCI_QUIRK_BROKEN_SMALL_PIO) && in sdhci_transfer_pio()
634 (host->data->blocks == 1)) in sdhci_transfer_pio()
638 if (host->quirks & SDHCI_QUIRK_PIO_NEEDS_DELAY) in sdhci_transfer_pio()
641 if (host->data->flags & MMC_DATA_READ) in sdhci_transfer_pio()
646 host->blocks--; in sdhci_transfer_pio()
647 if (host->blocks == 0) in sdhci_transfer_pio()
663 if (data->host_cookie == COOKIE_PRE_MAPPED) in sdhci_pre_dma_transfer()
664 return data->sg_count; in sdhci_pre_dma_transfer()
667 if (host->bounce_buffer) { in sdhci_pre_dma_transfer()
668 unsigned int length = data->blksz * data->blocks; in sdhci_pre_dma_transfer()
670 if (length > host->bounce_buffer_size) { in sdhci_pre_dma_transfer()
672 mmc_hostname(host->mmc), length, in sdhci_pre_dma_transfer()
673 host->bounce_buffer_size); in sdhci_pre_dma_transfer()
674 return -EIO; in sdhci_pre_dma_transfer()
678 if (host->ops->copy_to_bounce_buffer) { in sdhci_pre_dma_transfer()
679 host->ops->copy_to_bounce_buffer(host, in sdhci_pre_dma_transfer()
682 sg_copy_to_buffer(data->sg, data->sg_len, in sdhci_pre_dma_transfer()
683 host->bounce_buffer, length); in sdhci_pre_dma_transfer()
687 dma_sync_single_for_device(mmc_dev(host->mmc), in sdhci_pre_dma_transfer()
688 host->bounce_addr, in sdhci_pre_dma_transfer()
689 host->bounce_buffer_size, in sdhci_pre_dma_transfer()
695 sg_count = dma_map_sg(mmc_dev(host->mmc), in sdhci_pre_dma_transfer()
696 data->sg, data->sg_len, in sdhci_pre_dma_transfer()
701 return -ENOSPC; in sdhci_pre_dma_transfer()
703 data->sg_count = sg_count; in sdhci_pre_dma_transfer()
704 data->host_cookie = cookie; in sdhci_pre_dma_transfer()
712 return kmap_atomic(sg_page(sg)) + sg->offset; in sdhci_kmap_atomic()
722 dma_addr_t addr, int len, unsigned int cmd) in sdhci_adma_write_desc() argument
726 /* 32-bit and 64-bit descriptors have these members in same position */ in sdhci_adma_write_desc()
727 dma_desc->cmd = cpu_to_le16(cmd); in sdhci_adma_write_desc()
728 dma_desc->len = cpu_to_le16(len); in sdhci_adma_write_desc()
729 dma_desc->addr_lo = cpu_to_le32(lower_32_bits(addr)); in sdhci_adma_write_desc()
731 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_adma_write_desc()
732 dma_desc->addr_hi = cpu_to_le32(upper_32_bits(addr)); in sdhci_adma_write_desc()
734 *desc += host->desc_sz; in sdhci_adma_write_desc()
740 int len, unsigned int cmd) in __sdhci_adma_write_desc() argument
742 if (host->ops->adma_write_desc) in __sdhci_adma_write_desc()
743 host->ops->adma_write_desc(host, desc, addr, len, cmd); in __sdhci_adma_write_desc()
745 sdhci_adma_write_desc(host, desc, addr, len, cmd); in __sdhci_adma_write_desc()
752 /* 32-bit and 64-bit descriptors have 'cmd' in same position */ in sdhci_adma_mark_end()
753 dma_desc->cmd |= cpu_to_le16(ADMA2_END); in sdhci_adma_mark_end()
771 host->sg_count = sg_count; in sdhci_adma_table_pre()
773 desc = host->adma_table; in sdhci_adma_table_pre()
774 align = host->align_buffer; in sdhci_adma_table_pre()
776 align_addr = host->align_addr; in sdhci_adma_table_pre()
778 for_each_sg(data->sg, sg, host->sg_count, i) { in sdhci_adma_table_pre()
784 * be 32-bit aligned. If they aren't, then we use a bounce in sdhci_adma_table_pre()
788 offset = (SDHCI_ADMA2_ALIGN - (addr & SDHCI_ADMA2_MASK)) & in sdhci_adma_table_pre()
791 if (data->flags & MMC_DATA_WRITE) { in sdhci_adma_table_pre()
807 len -= offset; in sdhci_adma_table_pre()
816 while (len > host->max_adma) { in sdhci_adma_table_pre()
821 len -= n; in sdhci_adma_table_pre()
833 WARN_ON((desc - host->adma_table) >= host->adma_table_sz); in sdhci_adma_table_pre()
836 if (host->quirks & SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC) { in sdhci_adma_table_pre()
838 if (desc != host->adma_table) { in sdhci_adma_table_pre()
839 desc -= host->desc_sz; in sdhci_adma_table_pre()
843 /* Add a terminating entry - nop, end, valid */ in sdhci_adma_table_pre()
857 if (data->flags & MMC_DATA_READ) { in sdhci_adma_table_post()
861 for_each_sg(data->sg, sg, host->sg_count, i) in sdhci_adma_table_post()
868 dma_sync_sg_for_cpu(mmc_dev(host->mmc), data->sg, in sdhci_adma_table_post()
869 data->sg_len, DMA_FROM_DEVICE); in sdhci_adma_table_post()
871 align = host->align_buffer; in sdhci_adma_table_post()
873 for_each_sg(data->sg, sg, host->sg_count, i) { in sdhci_adma_table_post()
875 size = SDHCI_ADMA2_ALIGN - in sdhci_adma_table_post()
892 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_set_adma_addr()
898 if (host->bounce_buffer) in sdhci_sdma_address()
899 return host->bounce_addr; in sdhci_sdma_address()
901 return sg_dma_address(host->data->sg); in sdhci_sdma_address()
906 if (host->v4_mode) in sdhci_set_sdma_addr()
913 struct mmc_command *cmd, in sdhci_target_timeout() argument
920 target_timeout = cmd->busy_timeout * 1000; in sdhci_target_timeout()
922 target_timeout = DIV_ROUND_UP(data->timeout_ns, 1000); in sdhci_target_timeout()
923 if (host->clock && data->timeout_clks) { in sdhci_target_timeout()
927 * data->timeout_clks is in units of clock cycles. in sdhci_target_timeout()
928 * host->clock is in Hz. target_timeout is in us. in sdhci_target_timeout()
931 val = 1000000ULL * data->timeout_clks; in sdhci_target_timeout()
932 if (do_div(val, host->clock)) in sdhci_target_timeout()
942 struct mmc_command *cmd) in sdhci_calc_sw_timeout() argument
944 struct mmc_data *data = cmd->data; in sdhci_calc_sw_timeout()
945 struct mmc_host *mmc = host->mmc; in sdhci_calc_sw_timeout()
946 struct mmc_ios *ios = &mmc->ios; in sdhci_calc_sw_timeout()
947 unsigned char bus_width = 1 << ios->bus_width; in sdhci_calc_sw_timeout()
953 target_timeout = sdhci_target_timeout(host, cmd, data); in sdhci_calc_sw_timeout()
957 blksz = data->blksz; in sdhci_calc_sw_timeout()
958 freq = mmc->actual_clock ? : host->clock; in sdhci_calc_sw_timeout()
964 host->data_timeout = data->blocks * target_timeout + in sdhci_calc_sw_timeout()
967 host->data_timeout = target_timeout; in sdhci_calc_sw_timeout()
970 if (host->data_timeout) in sdhci_calc_sw_timeout()
971 host->data_timeout += MMC_CMD_TRANSFER_TIME; in sdhci_calc_sw_timeout()
974 static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd, in sdhci_calc_timeout() argument
986 * longer to time out, but that's much better than having a too-short in sdhci_calc_timeout()
989 if (host->quirks & SDHCI_QUIRK_BROKEN_TIMEOUT_VAL) in sdhci_calc_timeout()
990 return host->max_timeout_count; in sdhci_calc_timeout()
993 if (cmd == NULL) in sdhci_calc_timeout()
994 return host->max_timeout_count; in sdhci_calc_timeout()
996 data = cmd->data; in sdhci_calc_timeout()
998 if (!data && !cmd->busy_timeout) in sdhci_calc_timeout()
999 return host->max_timeout_count; in sdhci_calc_timeout()
1002 target_timeout = sdhci_target_timeout(host, cmd, data); in sdhci_calc_timeout()
1010 * (2) host->timeout_clk < 2^16 in sdhci_calc_timeout()
1015 current_timeout = (1 << 13) * 1000 / host->timeout_clk; in sdhci_calc_timeout()
1019 if (count > host->max_timeout_count) { in sdhci_calc_timeout()
1020 if (!(host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT)) in sdhci_calc_timeout()
1021 DBG("Too large timeout 0x%x requested for CMD%d!\n", in sdhci_calc_timeout()
1022 count, cmd->opcode); in sdhci_calc_timeout()
1023 count = host->max_timeout_count; in sdhci_calc_timeout()
1037 if (host->flags & SDHCI_REQ_USE_DMA) in sdhci_set_transfer_irqs()
1038 host->ier = (host->ier & ~pio_irqs) | dma_irqs; in sdhci_set_transfer_irqs()
1040 host->ier = (host->ier & ~dma_irqs) | pio_irqs; in sdhci_set_transfer_irqs()
1042 if (host->flags & (SDHCI_AUTO_CMD23 | SDHCI_AUTO_CMD12)) in sdhci_set_transfer_irqs()
1043 host->ier |= SDHCI_INT_AUTO_CMD_ERR; in sdhci_set_transfer_irqs()
1045 host->ier &= ~SDHCI_INT_AUTO_CMD_ERR; in sdhci_set_transfer_irqs()
1047 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_transfer_irqs()
1048 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_transfer_irqs()
1054 host->ier |= SDHCI_INT_DATA_TIMEOUT; in sdhci_set_data_timeout_irq()
1056 host->ier &= ~SDHCI_INT_DATA_TIMEOUT; in sdhci_set_data_timeout_irq()
1057 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_data_timeout_irq()
1058 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_data_timeout_irq()
1062 void __sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) in __sdhci_set_timeout() argument
1065 u8 count = sdhci_calc_timeout(host, cmd, &too_big); in __sdhci_set_timeout()
1068 host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT) { in __sdhci_set_timeout()
1069 sdhci_calc_sw_timeout(host, cmd); in __sdhci_set_timeout()
1071 } else if (!(host->ier & SDHCI_INT_DATA_TIMEOUT)) { in __sdhci_set_timeout()
1079 static void sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_set_timeout() argument
1081 if (host->ops->set_timeout) in sdhci_set_timeout()
1082 host->ops->set_timeout(host, cmd); in sdhci_set_timeout()
1084 __sdhci_set_timeout(host, cmd); in sdhci_set_timeout()
1090 WARN_ON(host->data); in sdhci_initialize_data()
1093 BUG_ON(data->blksz * data->blocks > 524288); in sdhci_initialize_data()
1094 BUG_ON(data->blksz > host->mmc->max_blk_size); in sdhci_initialize_data()
1095 BUG_ON(data->blocks > 65535); in sdhci_initialize_data()
1097 host->data = data; in sdhci_initialize_data()
1098 host->data_early = 0; in sdhci_initialize_data()
1099 host->data->bytes_xfered = 0; in sdhci_initialize_data()
1107 SDHCI_MAKE_BLKSZ(host->sdma_boundary, data->blksz), in sdhci_set_block_info()
1110 * For Version 4.10 onwards, if v4 mode is enabled, 32-bit Block Count in sdhci_set_block_info()
1111 * can be supported, in that case 16-bit block count register must be 0. in sdhci_set_block_info()
1113 if (host->version >= SDHCI_SPEC_410 && host->v4_mode && in sdhci_set_block_info()
1114 (host->quirks2 & SDHCI_QUIRK2_USE_32BIT_BLK_CNT)) { in sdhci_set_block_info()
1117 sdhci_writew(host, data->blocks, SDHCI_32BIT_BLK_CNT); in sdhci_set_block_info()
1119 sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT); in sdhci_set_block_info()
1123 static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_prepare_data() argument
1125 struct mmc_data *data = cmd->data; in sdhci_prepare_data()
1129 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_prepare_data()
1134 host->flags |= SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1145 if (host->flags & SDHCI_USE_ADMA) { in sdhci_prepare_data()
1146 if (host->quirks & SDHCI_QUIRK_32BIT_ADMA_SIZE) { in sdhci_prepare_data()
1156 if (host->quirks & SDHCI_QUIRK_32BIT_DMA_SIZE) in sdhci_prepare_data()
1158 if (host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) in sdhci_prepare_data()
1163 for_each_sg(data->sg, sg, data->sg_len, i) { in sdhci_prepare_data()
1164 if (sg->length & length_mask) { in sdhci_prepare_data()
1166 sg->length); in sdhci_prepare_data()
1167 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1170 if (sg->offset & offset_mask) { in sdhci_prepare_data()
1172 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1179 if (host->flags & SDHCI_REQ_USE_DMA) { in sdhci_prepare_data()
1188 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1189 } else if (host->flags & SDHCI_USE_ADMA) { in sdhci_prepare_data()
1191 sdhci_set_adma_addr(host, host->adma_addr); in sdhci_prepare_data()
1200 if (!(host->flags & SDHCI_REQ_USE_DMA)) { in sdhci_prepare_data()
1204 if (host->data->flags & MMC_DATA_READ) in sdhci_prepare_data()
1208 sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); in sdhci_prepare_data()
1209 host->blocks = data->blocks; in sdhci_prepare_data()
1222 struct mmc_host *mmc = host->mmc; in sdhci_external_dma_init()
1224 host->tx_chan = dma_request_chan(mmc_dev(mmc), "tx"); in sdhci_external_dma_init()
1225 if (IS_ERR(host->tx_chan)) { in sdhci_external_dma_init()
1226 ret = PTR_ERR(host->tx_chan); in sdhci_external_dma_init()
1227 if (ret != -EPROBE_DEFER) in sdhci_external_dma_init()
1229 host->tx_chan = NULL; in sdhci_external_dma_init()
1233 host->rx_chan = dma_request_chan(mmc_dev(mmc), "rx"); in sdhci_external_dma_init()
1234 if (IS_ERR(host->rx_chan)) { in sdhci_external_dma_init()
1235 if (host->tx_chan) { in sdhci_external_dma_init()
1236 dma_release_channel(host->tx_chan); in sdhci_external_dma_init()
1237 host->tx_chan = NULL; in sdhci_external_dma_init()
1240 ret = PTR_ERR(host->rx_chan); in sdhci_external_dma_init()
1241 if (ret != -EPROBE_DEFER) in sdhci_external_dma_init()
1243 host->rx_chan = NULL; in sdhci_external_dma_init()
1252 return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan; in sdhci_external_dma_channel()
1256 struct mmc_command *cmd) in sdhci_external_dma_setup() argument
1261 struct mmc_data *data = cmd->data; in sdhci_external_dma_setup()
1267 if (!host->mapbase) in sdhci_external_dma_setup()
1268 return -EINVAL; in sdhci_external_dma_setup()
1271 cfg.src_addr = host->mapbase + SDHCI_BUFFER; in sdhci_external_dma_setup()
1272 cfg.dst_addr = host->mapbase + SDHCI_BUFFER; in sdhci_external_dma_setup()
1275 cfg.src_maxburst = data->blksz / 4; in sdhci_external_dma_setup()
1276 cfg.dst_maxburst = data->blksz / 4; in sdhci_external_dma_setup()
1279 for (i = 0; i < data->sg_len; i++) { in sdhci_external_dma_setup()
1280 if ((data->sg + i)->length % data->blksz) in sdhci_external_dma_setup()
1281 return -EINVAL; in sdhci_external_dma_setup()
1292 return -EINVAL; in sdhci_external_dma_setup()
1294 dir = data->flags & MMC_DATA_WRITE ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM; in sdhci_external_dma_setup()
1295 desc = dmaengine_prep_slave_sg(chan, data->sg, data->sg_len, dir, in sdhci_external_dma_setup()
1298 return -EINVAL; in sdhci_external_dma_setup()
1300 desc->callback = NULL; in sdhci_external_dma_setup()
1301 desc->callback_param = NULL; in sdhci_external_dma_setup()
1312 if (host->tx_chan) { in sdhci_external_dma_release()
1313 dma_release_channel(host->tx_chan); in sdhci_external_dma_release()
1314 host->tx_chan = NULL; in sdhci_external_dma_release()
1317 if (host->rx_chan) { in sdhci_external_dma_release()
1318 dma_release_channel(host->rx_chan); in sdhci_external_dma_release()
1319 host->rx_chan = NULL; in sdhci_external_dma_release()
1326 struct mmc_command *cmd) in __sdhci_external_dma_prepare_data() argument
1328 struct mmc_data *data = cmd->data; in __sdhci_external_dma_prepare_data()
1332 host->flags |= SDHCI_REQ_USE_DMA; in __sdhci_external_dma_prepare_data()
1339 struct mmc_command *cmd) in sdhci_external_dma_prepare_data() argument
1341 if (!sdhci_external_dma_setup(host, cmd)) { in sdhci_external_dma_prepare_data()
1342 __sdhci_external_dma_prepare_data(host, cmd); in sdhci_external_dma_prepare_data()
1346 mmc_hostname(host->mmc)); in sdhci_external_dma_prepare_data()
1347 sdhci_prepare_data(host, cmd); in sdhci_external_dma_prepare_data()
1352 struct mmc_command *cmd) in sdhci_external_dma_pre_transfer() argument
1356 if (!cmd->data) in sdhci_external_dma_pre_transfer()
1359 chan = sdhci_external_dma_channel(host, cmd->data); in sdhci_external_dma_pre_transfer()
1368 return -EOPNOTSUPP; in sdhci_external_dma_init()
1376 struct mmc_command *cmd) in sdhci_external_dma_prepare_data() argument
1383 struct mmc_command *cmd) in sdhci_external_dma_pre_transfer() argument
1397 host->use_external_dma = en; in sdhci_switch_external_dma()
1404 return !mrq->sbc && (host->flags & SDHCI_AUTO_CMD12) && in sdhci_auto_cmd12()
1405 !mrq->cap_cmd_during_tfr; in sdhci_auto_cmd12()
1411 return mrq->sbc && (host->flags & SDHCI_AUTO_CMD23); in sdhci_auto_cmd23()
1417 return mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23); in sdhci_manual_cmd23()
1421 struct mmc_command *cmd, in sdhci_auto_cmd_select() argument
1424 bool use_cmd12 = sdhci_auto_cmd12(host, cmd->mrq) && in sdhci_auto_cmd_select()
1425 (cmd->opcode != SD_IO_RW_EXTENDED); in sdhci_auto_cmd_select()
1426 bool use_cmd23 = sdhci_auto_cmd23(host, cmd->mrq); in sdhci_auto_cmd_select()
1430 * In case of Version 4.10 or later, use of 'Auto CMD Auto in sdhci_auto_cmd_select()
1433 * here because some controllers (e.g sdhci-of-dwmshc) expect it. in sdhci_auto_cmd_select()
1435 if (host->version >= SDHCI_SPEC_410 && host->v4_mode && in sdhci_auto_cmd_select()
1451 * on successful completion (so no Auto-CMD12). in sdhci_auto_cmd_select()
1460 struct mmc_command *cmd) in sdhci_set_transfer_mode() argument
1463 struct mmc_data *data = cmd->data; in sdhci_set_transfer_mode()
1466 if (host->quirks2 & in sdhci_set_transfer_mode()
1469 if (cmd->opcode != MMC_SEND_TUNING_BLOCK_HS200) in sdhci_set_transfer_mode()
1472 /* clear Auto CMD settings for no data CMDs */ in sdhci_set_transfer_mode()
1480 WARN_ON(!host->data); in sdhci_set_transfer_mode()
1482 if (!(host->quirks2 & SDHCI_QUIRK2_SUPPORT_SINGLE)) in sdhci_set_transfer_mode()
1485 if (mmc_op_multi(cmd->opcode) || data->blocks > 1) { in sdhci_set_transfer_mode()
1487 sdhci_auto_cmd_select(host, cmd, &mode); in sdhci_set_transfer_mode()
1488 if (sdhci_auto_cmd23(host, cmd->mrq)) in sdhci_set_transfer_mode()
1489 sdhci_writel(host, cmd->mrq->sbc->arg, SDHCI_ARGUMENT2); in sdhci_set_transfer_mode()
1492 if (data->flags & MMC_DATA_READ) in sdhci_set_transfer_mode()
1494 if (host->flags & SDHCI_REQ_USE_DMA) in sdhci_set_transfer_mode()
1502 return (!(host->flags & SDHCI_DEVICE_DEAD) && in sdhci_needs_reset()
1503 ((mrq->cmd && mrq->cmd->error) || in sdhci_needs_reset()
1504 (mrq->sbc && mrq->sbc->error) || in sdhci_needs_reset()
1505 (mrq->data && mrq->data->stop && mrq->data->stop->error) || in sdhci_needs_reset()
1506 (host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST))); in sdhci_needs_reset()
1514 if (host->mrqs_done[i] == mrq) { in sdhci_set_mrq_done()
1521 if (!host->mrqs_done[i]) { in sdhci_set_mrq_done()
1522 host->mrqs_done[i] = mrq; in sdhci_set_mrq_done()
1532 if (host->cmd && host->cmd->mrq == mrq) in __sdhci_finish_mrq()
1533 host->cmd = NULL; in __sdhci_finish_mrq()
1535 if (host->data_cmd && host->data_cmd->mrq == mrq) in __sdhci_finish_mrq()
1536 host->data_cmd = NULL; in __sdhci_finish_mrq()
1538 if (host->deferred_cmd && host->deferred_cmd->mrq == mrq) in __sdhci_finish_mrq()
1539 host->deferred_cmd = NULL; in __sdhci_finish_mrq()
1541 if (host->data && host->data->mrq == mrq) in __sdhci_finish_mrq()
1542 host->data = NULL; in __sdhci_finish_mrq()
1545 host->pending_reset = true; in __sdhci_finish_mrq()
1559 queue_work(host->complete_wq, &host->complete_work); in sdhci_finish_mrq()
1564 struct mmc_command *data_cmd = host->data_cmd; in __sdhci_finish_data()
1565 struct mmc_data *data = host->data; in __sdhci_finish_data()
1567 host->data = NULL; in __sdhci_finish_data()
1568 host->data_cmd = NULL; in __sdhci_finish_data()
1574 if (data->error) { in __sdhci_finish_data()
1575 if (!host->cmd || host->cmd == data_cmd) in __sdhci_finish_data()
1581 if ((host->flags & (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA)) == in __sdhci_finish_data()
1592 if (data->error) in __sdhci_finish_data()
1593 data->bytes_xfered = 0; in __sdhci_finish_data()
1595 data->bytes_xfered = data->blksz * data->blocks; in __sdhci_finish_data()
1598 * Need to send CMD12 if - in __sdhci_finish_data()
1599 * a) open-ended multiblock transfer not using auto CMD12 (no CMD23) in __sdhci_finish_data()
1602 if (data->stop && in __sdhci_finish_data()
1603 ((!data->mrq->sbc && !sdhci_auto_cmd12(host, data->mrq)) || in __sdhci_finish_data()
1604 data->error)) { in __sdhci_finish_data()
1610 if (data->mrq->cap_cmd_during_tfr) { in __sdhci_finish_data()
1611 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1614 host->cmd = NULL; in __sdhci_finish_data()
1615 if (!sdhci_send_command(host, data->stop)) { in __sdhci_finish_data()
1621 data->stop->error = -EIO; in __sdhci_finish_data()
1622 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1624 WARN_ON(host->deferred_cmd); in __sdhci_finish_data()
1625 host->deferred_cmd = data->stop; in __sdhci_finish_data()
1630 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1639 static bool sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_send_command() argument
1645 WARN_ON(host->cmd); in sdhci_send_command()
1648 cmd->error = 0; in sdhci_send_command()
1650 if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) && in sdhci_send_command()
1651 cmd->opcode == MMC_STOP_TRANSMISSION) in sdhci_send_command()
1652 cmd->flags |= MMC_RSP_BUSY; in sdhci_send_command()
1655 if (sdhci_data_line_cmd(cmd)) in sdhci_send_command()
1660 if (cmd->mrq->data && (cmd == cmd->mrq->data->stop)) in sdhci_send_command()
1666 host->cmd = cmd; in sdhci_send_command()
1667 host->data_timeout = 0; in sdhci_send_command()
1668 if (sdhci_data_line_cmd(cmd)) { in sdhci_send_command()
1669 WARN_ON(host->data_cmd); in sdhci_send_command()
1670 host->data_cmd = cmd; in sdhci_send_command()
1671 sdhci_set_timeout(host, cmd); in sdhci_send_command()
1674 if (cmd->data) { in sdhci_send_command()
1675 if (host->use_external_dma) in sdhci_send_command()
1676 sdhci_external_dma_prepare_data(host, cmd); in sdhci_send_command()
1678 sdhci_prepare_data(host, cmd); in sdhci_send_command()
1681 sdhci_writel(host, cmd->arg, SDHCI_ARGUMENT); in sdhci_send_command()
1683 sdhci_set_transfer_mode(host, cmd); in sdhci_send_command()
1685 if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) { in sdhci_send_command()
1688 * This does not happen in practice because 136-bit response in sdhci_send_command()
1692 cmd->flags &= ~MMC_RSP_BUSY; in sdhci_send_command()
1695 if (!(cmd->flags & MMC_RSP_PRESENT)) in sdhci_send_command()
1697 else if (cmd->flags & MMC_RSP_136) in sdhci_send_command()
1699 else if (cmd->flags & MMC_RSP_BUSY) in sdhci_send_command()
1704 if (cmd->flags & MMC_RSP_CRC) in sdhci_send_command()
1706 if (cmd->flags & MMC_RSP_OPCODE) in sdhci_send_command()
1710 if (cmd->data || cmd->opcode == MMC_SEND_TUNING_BLOCK || in sdhci_send_command()
1711 cmd->opcode == MMC_SEND_TUNING_BLOCK_HS200) in sdhci_send_command()
1715 if (host->data_timeout) in sdhci_send_command()
1716 timeout += nsecs_to_jiffies(host->data_timeout); in sdhci_send_command()
1717 else if (!cmd->data && cmd->busy_timeout > 9000) in sdhci_send_command()
1718 timeout += DIV_ROUND_UP(cmd->busy_timeout, 1000) * HZ + HZ; in sdhci_send_command()
1721 sdhci_mod_timer(host, cmd->mrq, timeout); in sdhci_send_command()
1723 if (host->use_external_dma) in sdhci_send_command()
1724 sdhci_external_dma_pre_transfer(host, cmd); in sdhci_send_command()
1726 sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND); in sdhci_send_command()
1732 struct mmc_command *cmd, bool present) in sdhci_present_error() argument
1734 if (!present || host->flags & SDHCI_DEVICE_DEAD) { in sdhci_present_error()
1735 cmd->error = -ENOMEDIUM; in sdhci_present_error()
1743 struct mmc_command *cmd, in sdhci_send_command_retry() argument
1745 __releases(host->lock) in sdhci_send_command_retry()
1746 __acquires(host->lock) in sdhci_send_command_retry()
1748 struct mmc_command *deferred_cmd = host->deferred_cmd; in sdhci_send_command_retry()
1752 while (!sdhci_send_command(host, cmd)) { in sdhci_send_command_retry()
1753 if (!timeout--) { in sdhci_send_command_retry()
1755 mmc_hostname(host->mmc)); in sdhci_send_command_retry()
1758 cmd->error = -EIO; in sdhci_send_command_retry()
1762 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_command_retry()
1766 present = host->mmc->ops->get_cd(host->mmc); in sdhci_send_command_retry()
1768 spin_lock_irqsave(&host->lock, flags); in sdhci_send_command_retry()
1771 if (cmd == deferred_cmd && cmd != host->deferred_cmd) in sdhci_send_command_retry()
1774 if (sdhci_present_error(host, cmd, present)) in sdhci_send_command_retry()
1778 if (cmd == host->deferred_cmd) in sdhci_send_command_retry()
1779 host->deferred_cmd = NULL; in sdhci_send_command_retry()
1784 static void sdhci_read_rsp_136(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_read_rsp_136() argument
1789 reg = SDHCI_RESPONSE + (3 - i) * 4; in sdhci_read_rsp_136()
1790 cmd->resp[i] = sdhci_readl(host, reg); in sdhci_read_rsp_136()
1793 if (host->quirks2 & SDHCI_QUIRK2_RSP_136_HAS_CRC) in sdhci_read_rsp_136()
1798 cmd->resp[i] <<= 8; in sdhci_read_rsp_136()
1800 cmd->resp[i] |= cmd->resp[i + 1] >> 24; in sdhci_read_rsp_136()
1806 struct mmc_command *cmd = host->cmd; in sdhci_finish_command() local
1808 host->cmd = NULL; in sdhci_finish_command()
1810 if (cmd->flags & MMC_RSP_PRESENT) { in sdhci_finish_command()
1811 if (cmd->flags & MMC_RSP_136) { in sdhci_finish_command()
1812 sdhci_read_rsp_136(host, cmd); in sdhci_finish_command()
1814 cmd->resp[0] = sdhci_readl(host, SDHCI_RESPONSE); in sdhci_finish_command()
1818 if (cmd->mrq->cap_cmd_during_tfr && cmd == cmd->mrq->cmd) in sdhci_finish_command()
1819 mmc_command_done(host->mmc, cmd->mrq); in sdhci_finish_command()
1831 if (cmd->flags & MMC_RSP_BUSY) { in sdhci_finish_command()
1832 if (cmd->data) { in sdhci_finish_command()
1834 } else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ) && in sdhci_finish_command()
1835 cmd == host->data_cmd) { in sdhci_finish_command()
1842 if (cmd == cmd->mrq->sbc) { in sdhci_finish_command()
1843 if (!sdhci_send_command(host, cmd->mrq->cmd)) { in sdhci_finish_command()
1844 WARN_ON(host->deferred_cmd); in sdhci_finish_command()
1845 host->deferred_cmd = cmd->mrq->cmd; in sdhci_finish_command()
1850 if (host->data && host->data_early) in sdhci_finish_command()
1853 if (!cmd->data) in sdhci_finish_command()
1854 __sdhci_finish_mrq(host, cmd->mrq); in sdhci_finish_command()
1862 switch (host->timing) { in sdhci_get_preset_value()
1888 pr_warn("%s: Invalid UHS-I mode selected\n", in sdhci_get_preset_value()
1889 mmc_hostname(host->mmc)); in sdhci_get_preset_value()
1904 if (host->version >= SDHCI_SPEC_300) { in sdhci_calc_clk()
1905 if (host->preset_enabled) { in sdhci_calc_clk()
1911 if (host->clk_mul && in sdhci_calc_clk()
1915 clk_mul = host->clk_mul; in sdhci_calc_clk()
1926 if (host->clk_mul) { in sdhci_calc_clk()
1928 if ((host->max_clk * host->clk_mul / div) in sdhci_calc_clk()
1932 if ((host->max_clk * host->clk_mul / div) <= clock) { in sdhci_calc_clk()
1939 clk_mul = host->clk_mul; in sdhci_calc_clk()
1940 div--; in sdhci_calc_clk()
1950 if (!host->clk_mul || switch_base_clk) { in sdhci_calc_clk()
1952 if (host->max_clk <= clock) in sdhci_calc_clk()
1957 if ((host->max_clk / div) <= clock) in sdhci_calc_clk()
1963 if ((host->quirks2 & SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN) in sdhci_calc_clk()
1964 && !div && host->max_clk <= 25000000) in sdhci_calc_clk()
1970 if ((host->max_clk / div) <= clock) in sdhci_calc_clk()
1979 *actual_clock = (host->max_clk * clk_mul) / real_div; in sdhci_calc_clk()
2005 mmc_hostname(host->mmc)); in sdhci_enable_clk()
2013 if (host->version >= SDHCI_SPEC_410 && host->v4_mode) { in sdhci_enable_clk()
2028 mmc_hostname(host->mmc)); in sdhci_enable_clk()
2046 host->mmc->actual_clock = 0; in sdhci_set_clock()
2053 clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock); in sdhci_set_clock()
2061 struct mmc_host *mmc = host->mmc; in sdhci_set_power_reg()
2063 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd); in sdhci_set_power_reg()
2104 mmc_hostname(host->mmc), vdd); in sdhci_set_power_noreg()
2109 if (host->pwr == pwr) in sdhci_set_power_noreg()
2112 host->pwr = pwr; in sdhci_set_power_noreg()
2116 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_set_power_noreg()
2123 if (!(host->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE)) in sdhci_set_power_noreg()
2131 if (host->quirks & SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER) in sdhci_set_power_noreg()
2138 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_set_power_noreg()
2145 if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER) in sdhci_set_power_noreg()
2154 if (IS_ERR(host->mmc->supply.vmmc)) in sdhci_set_power()
2171 if (!IS_ERR(host->mmc->supply.vmmc)) { in sdhci_set_power_and_bus_voltage()
2172 struct mmc_host *mmc = host->mmc; in sdhci_set_power_and_bus_voltage()
2174 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd); in sdhci_set_power_and_bus_voltage()
2189 struct mmc_command *cmd; in sdhci_request() local
2194 present = mmc->ops->get_cd(mmc); in sdhci_request()
2196 spin_lock_irqsave(&host->lock, flags); in sdhci_request()
2200 if (sdhci_present_error(host, mrq->cmd, present)) in sdhci_request()
2203 cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; in sdhci_request()
2205 if (!sdhci_send_command_retry(host, cmd, flags)) in sdhci_request()
2208 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request()
2214 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request()
2221 struct mmc_command *cmd; in sdhci_request_atomic() local
2225 spin_lock_irqsave(&host->lock, flags); in sdhci_request_atomic()
2227 if (sdhci_present_error(host, mrq->cmd, true)) { in sdhci_request_atomic()
2232 cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; in sdhci_request_atomic()
2238 * again in non-atomic context. So we should not finish this request in sdhci_request_atomic()
2241 if (!sdhci_send_command(host, cmd)) in sdhci_request_atomic()
2242 ret = -EBUSY; in sdhci_request_atomic()
2247 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_atomic()
2261 if (host->mmc->caps & MMC_CAP_8_BIT_DATA) in sdhci_set_bus_width()
2292 ctrl_2 |= SDHCI_CTRL_HS400; /* Non-standard */ in sdhci_set_uhs_signaling()
2313 return !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN) && in sdhci_preset_needed()
2324 return !host->preset_enabled && in sdhci_presetable_values_change()
2325 (sdhci_preset_needed(host, ios->timing) || host->drv_type != ios->drv_type); in sdhci_presetable_values_change()
2331 bool reinit_uhs = host->reinit_uhs; in sdhci_set_ios()
2335 host->reinit_uhs = false; in sdhci_set_ios()
2337 if (ios->power_mode == MMC_POWER_UNDEFINED) in sdhci_set_ios()
2340 if (host->flags & SDHCI_DEVICE_DEAD) { in sdhci_set_ios()
2341 if (!IS_ERR(mmc->supply.vmmc) && in sdhci_set_ios()
2342 ios->power_mode == MMC_POWER_OFF) in sdhci_set_ios()
2343 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0); in sdhci_set_ios()
2351 if (ios->power_mode == MMC_POWER_OFF) { in sdhci_set_ios()
2356 if (host->version >= SDHCI_SPEC_300 && in sdhci_set_ios()
2357 (ios->power_mode == MMC_POWER_UP) && in sdhci_set_ios()
2358 !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) in sdhci_set_ios()
2361 if (!ios->clock || ios->clock != host->clock) { in sdhci_set_ios()
2362 turning_on_clk = ios->clock && !host->clock; in sdhci_set_ios()
2364 host->ops->set_clock(host, ios->clock); in sdhci_set_ios()
2365 host->clock = ios->clock; in sdhci_set_ios()
2367 if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK && in sdhci_set_ios()
2368 host->clock) { in sdhci_set_ios()
2369 host->timeout_clk = mmc->actual_clock ? in sdhci_set_ios()
2370 mmc->actual_clock / 1000 : in sdhci_set_ios()
2371 host->clock / 1000; in sdhci_set_ios()
2372 mmc->max_busy_timeout = in sdhci_set_ios()
2373 host->ops->get_max_timeout_count ? in sdhci_set_ios()
2374 host->ops->get_max_timeout_count(host) : in sdhci_set_ios()
2376 mmc->max_busy_timeout /= host->timeout_clk; in sdhci_set_ios()
2380 if (host->ops->set_power) in sdhci_set_ios()
2381 host->ops->set_power(host, ios->power_mode, ios->vdd); in sdhci_set_ios()
2383 sdhci_set_power(host, ios->power_mode, ios->vdd); in sdhci_set_ios()
2385 if (host->ops->platform_send_init_74_clocks) in sdhci_set_ios()
2386 host->ops->platform_send_init_74_clocks(host, ios->power_mode); in sdhci_set_ios()
2388 host->ops->set_bus_width(host, ios->bus_width); in sdhci_set_ios()
2396 host->timing == ios->timing && in sdhci_set_ios()
2397 host->version >= SDHCI_SPEC_300 && in sdhci_set_ios()
2403 if (!(host->quirks & SDHCI_QUIRK_NO_HISPD_BIT)) { in sdhci_set_ios()
2404 if (ios->timing == MMC_TIMING_SD_HS || in sdhci_set_ios()
2405 ios->timing == MMC_TIMING_MMC_HS || in sdhci_set_ios()
2406 ios->timing == MMC_TIMING_MMC_HS400 || in sdhci_set_ios()
2407 ios->timing == MMC_TIMING_MMC_HS200 || in sdhci_set_ios()
2408 ios->timing == MMC_TIMING_MMC_DDR52 || in sdhci_set_ios()
2409 ios->timing == MMC_TIMING_UHS_SDR50 || in sdhci_set_ios()
2410 ios->timing == MMC_TIMING_UHS_SDR104 || in sdhci_set_ios()
2411 ios->timing == MMC_TIMING_UHS_DDR50 || in sdhci_set_ios()
2412 ios->timing == MMC_TIMING_UHS_SDR25) in sdhci_set_ios()
2418 if (host->version >= SDHCI_SPEC_300) { in sdhci_set_ios()
2421 if (!host->preset_enabled) { in sdhci_set_ios()
2429 if (ios->drv_type == MMC_SET_DRIVER_TYPE_A) in sdhci_set_ios()
2431 else if (ios->drv_type == MMC_SET_DRIVER_TYPE_B) in sdhci_set_ios()
2433 else if (ios->drv_type == MMC_SET_DRIVER_TYPE_C) in sdhci_set_ios()
2435 else if (ios->drv_type == MMC_SET_DRIVER_TYPE_D) in sdhci_set_ios()
2444 host->drv_type = ios->drv_type; in sdhci_set_ios()
2460 /* Re-enable SD Clock */ in sdhci_set_ios()
2461 host->ops->set_clock(host, host->clock); in sdhci_set_ios()
2469 host->ops->set_uhs_signaling(host, ios->timing); in sdhci_set_ios()
2470 host->timing = ios->timing; in sdhci_set_ios()
2472 if (sdhci_preset_needed(host, ios->timing)) { in sdhci_set_ios()
2477 ios->drv_type = FIELD_GET(SDHCI_PRESET_DRV_MASK, in sdhci_set_ios()
2479 host->drv_type = ios->drv_type; in sdhci_set_ios()
2482 /* Re-enable SD Clock */ in sdhci_set_ios()
2483 host->ops->set_clock(host, host->clock); in sdhci_set_ios()
2494 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_get_cd()
2509 if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) in sdhci_get_cd()
2522 spin_lock_irqsave(&host->lock, flags); in sdhci_get_cd_nogpio()
2524 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_get_cd_nogpio()
2529 spin_unlock_irqrestore(&host->lock, flags); in sdhci_get_cd_nogpio()
2540 spin_lock_irqsave(&host->lock, flags); in sdhci_check_ro()
2542 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_check_ro()
2544 else if (host->ops->get_ro) in sdhci_check_ro()
2545 is_readonly = host->ops->get_ro(host); in sdhci_check_ro()
2546 else if (mmc_can_gpio_ro(host->mmc)) in sdhci_check_ro()
2547 is_readonly = mmc_gpio_get_ro(host->mmc); in sdhci_check_ro()
2552 spin_unlock_irqrestore(&host->lock, flags); in sdhci_check_ro()
2554 /* This quirk needs to be replaced by a callback-function later */ in sdhci_check_ro()
2555 return host->quirks & SDHCI_QUIRK_INVERTED_WRITE_PROTECT ? in sdhci_check_ro()
2566 if (!(host->quirks & SDHCI_QUIRK_UNSTABLE_RO_DETECT)) in sdhci_get_ro()
2584 if (host->ops && host->ops->hw_reset) in sdhci_hw_reset()
2585 host->ops->hw_reset(host); in sdhci_hw_reset()
2590 if (!(host->flags & SDHCI_DEVICE_DEAD)) { in sdhci_enable_sdio_irq_nolock()
2592 host->ier |= SDHCI_INT_CARD_INT; in sdhci_enable_sdio_irq_nolock()
2594 host->ier &= ~SDHCI_INT_CARD_INT; in sdhci_enable_sdio_irq_nolock()
2596 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_enable_sdio_irq_nolock()
2597 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_enable_sdio_irq_nolock()
2609 spin_lock_irqsave(&host->lock, flags); in sdhci_enable_sdio_irq()
2611 spin_unlock_irqrestore(&host->lock, flags); in sdhci_enable_sdio_irq()
2623 spin_lock_irqsave(&host->lock, flags); in sdhci_ack_sdio_irq()
2625 spin_unlock_irqrestore(&host->lock, flags); in sdhci_ack_sdio_irq()
2639 if (host->version < SDHCI_SPEC_300) in sdhci_start_signal_voltage_switch()
2644 switch (ios->signal_voltage) { in sdhci_start_signal_voltage_switch()
2646 if (!(host->flags & SDHCI_SIGNALING_330)) in sdhci_start_signal_voltage_switch()
2647 return -EINVAL; in sdhci_start_signal_voltage_switch()
2652 if (!IS_ERR(mmc->supply.vqmmc)) { in sdhci_start_signal_voltage_switch()
2657 return -EIO; in sdhci_start_signal_voltage_switch()
2671 return -EAGAIN; in sdhci_start_signal_voltage_switch()
2673 if (!(host->flags & SDHCI_SIGNALING_180)) in sdhci_start_signal_voltage_switch()
2674 return -EINVAL; in sdhci_start_signal_voltage_switch()
2675 if (!IS_ERR(mmc->supply.vqmmc)) { in sdhci_start_signal_voltage_switch()
2680 return -EIO; in sdhci_start_signal_voltage_switch()
2692 if (host->ops->voltage_switch) in sdhci_start_signal_voltage_switch()
2693 host->ops->voltage_switch(host); in sdhci_start_signal_voltage_switch()
2703 return -EAGAIN; in sdhci_start_signal_voltage_switch()
2705 if (!(host->flags & SDHCI_SIGNALING_120)) in sdhci_start_signal_voltage_switch()
2706 return -EINVAL; in sdhci_start_signal_voltage_switch()
2707 if (!IS_ERR(mmc->supply.vqmmc)) { in sdhci_start_signal_voltage_switch()
2712 return -EIO; in sdhci_start_signal_voltage_switch()
2728 /* Check whether DAT[0] is 0 */ in sdhci_card_busy()
2739 spin_lock_irqsave(&host->lock, flags); in sdhci_prepare_hs400_tuning()
2740 host->flags |= SDHCI_HS400_TUNING; in sdhci_prepare_hs400_tuning()
2741 spin_unlock_irqrestore(&host->lock, flags); in sdhci_prepare_hs400_tuning()
2752 if (host->quirks2 & SDHCI_QUIRK2_TUNING_WORK_AROUND) in sdhci_start_tuning()
2773 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_end_tuning()
2774 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_end_tuning()
2797 mmc_send_abort_tuning(host->mmc, opcode); in sdhci_abort_tuning()
2804 * automatically) so mmc_send_tuning() will return -EIO. Also the tuning command
2810 struct mmc_host *mmc = host->mmc; in sdhci_send_tuning()
2811 struct mmc_command cmd = {}; in sdhci_send_tuning() local
2814 u32 b = host->sdma_boundary; in sdhci_send_tuning()
2816 spin_lock_irqsave(&host->lock, flags); in sdhci_send_tuning()
2818 cmd.opcode = opcode; in sdhci_send_tuning()
2819 cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; in sdhci_send_tuning()
2820 cmd.mrq = &mrq; in sdhci_send_tuning()
2822 mrq.cmd = &cmd; in sdhci_send_tuning()
2828 if (cmd.opcode == MMC_SEND_TUNING_BLOCK_HS200 && in sdhci_send_tuning()
2829 mmc->ios.bus_width == MMC_BUS_WIDTH_8) in sdhci_send_tuning()
2842 if (!sdhci_send_command_retry(host, &cmd, flags)) { in sdhci_send_tuning()
2843 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_tuning()
2844 host->tuning_done = 0; in sdhci_send_tuning()
2848 host->cmd = NULL; in sdhci_send_tuning()
2852 host->tuning_done = 0; in sdhci_send_tuning()
2854 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_tuning()
2857 wait_event_timeout(host->buf_ready_int, (host->tuning_done == 1), in sdhci_send_tuning()
2871 for (i = 0; i < host->tuning_loop_count; i++) { in __sdhci_execute_tuning()
2876 if (!host->tuning_done) { in __sdhci_execute_tuning()
2878 mmc_hostname(host->mmc)); in __sdhci_execute_tuning()
2880 return -ETIMEDOUT; in __sdhci_execute_tuning()
2884 if (host->tuning_delay > 0) in __sdhci_execute_tuning()
2885 mdelay(host->tuning_delay); in __sdhci_execute_tuning()
2897 mmc_hostname(host->mmc)); in __sdhci_execute_tuning()
2899 return -EAGAIN; in __sdhci_execute_tuning()
2909 hs400_tuning = host->flags & SDHCI_HS400_TUNING; in sdhci_execute_tuning()
2911 if (host->tuning_mode == SDHCI_TUNING_MODE_1) in sdhci_execute_tuning()
2912 tuning_count = host->tuning_count; in sdhci_execute_tuning()
2921 switch (host->timing) { in sdhci_execute_tuning()
2924 err = -EINVAL; in sdhci_execute_tuning()
2929 * Periodic re-tuning for HS400 is not expected to be needed, so in sdhci_execute_tuning()
2941 if (host->flags & SDHCI_SDR50_NEEDS_TUNING) in sdhci_execute_tuning()
2949 if (host->ops->platform_execute_tuning) { in sdhci_execute_tuning()
2950 err = host->ops->platform_execute_tuning(host, opcode); in sdhci_execute_tuning()
2954 mmc->retune_period = tuning_count; in sdhci_execute_tuning()
2956 if (host->tuning_delay < 0) in sdhci_execute_tuning()
2957 host->tuning_delay = opcode == MMC_SEND_TUNING_BLOCK; in sdhci_execute_tuning()
2961 host->tuning_err = __sdhci_execute_tuning(host, opcode); in sdhci_execute_tuning()
2965 host->flags &= ~SDHCI_HS400_TUNING; in sdhci_execute_tuning()
2974 if (host->version < SDHCI_SPEC_300) in sdhci_enable_preset_value()
2981 if (host->preset_enabled != enable) { in sdhci_enable_preset_value()
2992 host->flags |= SDHCI_PV_ENABLED; in sdhci_enable_preset_value()
2994 host->flags &= ~SDHCI_PV_ENABLED; in sdhci_enable_preset_value()
2996 host->preset_enabled = enable; in sdhci_enable_preset_value()
3003 struct mmc_data *data = mrq->data; in sdhci_post_req()
3005 if (data->host_cookie != COOKIE_UNMAPPED) in sdhci_post_req()
3006 dma_unmap_sg(mmc_dev(mmc), data->sg, data->sg_len, in sdhci_post_req()
3009 data->host_cookie = COOKIE_UNMAPPED; in sdhci_post_req()
3016 mrq->data->host_cookie = COOKIE_UNMAPPED; in sdhci_pre_req()
3019 * No pre-mapping in the pre hook if we're using the bounce buffer, in sdhci_pre_req()
3023 if (host->flags & SDHCI_REQ_USE_DMA && !host->bounce_buffer) in sdhci_pre_req()
3024 sdhci_pre_dma_transfer(host, mrq->data, COOKIE_PRE_MAPPED); in sdhci_pre_req()
3029 if (host->data_cmd) { in sdhci_error_out_mrqs()
3030 host->data_cmd->error = err; in sdhci_error_out_mrqs()
3031 sdhci_finish_mrq(host, host->data_cmd->mrq); in sdhci_error_out_mrqs()
3034 if (host->cmd) { in sdhci_error_out_mrqs()
3035 host->cmd->error = err; in sdhci_error_out_mrqs()
3036 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_error_out_mrqs()
3047 if (host->ops->card_event) in sdhci_card_event()
3048 host->ops->card_event(host); in sdhci_card_event()
3050 present = mmc->ops->get_cd(mmc); in sdhci_card_event()
3052 spin_lock_irqsave(&host->lock, flags); in sdhci_card_event()
3063 sdhci_error_out_mrqs(host, -ENOMEDIUM); in sdhci_card_event()
3066 spin_unlock_irqrestore(&host->lock, flags); in sdhci_card_event()
3098 spin_lock_irqsave(&host->lock, flags); in sdhci_request_done()
3101 mrq = host->mrqs_done[i]; in sdhci_request_done()
3107 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3119 * also be in mrqs_done, otherwise host->cmd and host->data_cmd in sdhci_request_done()
3122 if (host->cmd || host->data_cmd) { in sdhci_request_done()
3123 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3128 if (host->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) in sdhci_request_done()
3130 host->ops->set_clock(host, host->clock); in sdhci_request_done()
3134 host->pending_reset = false; in sdhci_request_done()
3142 if (host->flags & SDHCI_REQ_USE_DMA) { in sdhci_request_done()
3143 struct mmc_data *data = mrq->data; in sdhci_request_done()
3145 if (host->use_external_dma && data && in sdhci_request_done()
3146 (mrq->cmd->error || data->error)) { in sdhci_request_done()
3149 host->mrqs_done[i] = NULL; in sdhci_request_done()
3150 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3152 spin_lock_irqsave(&host->lock, flags); in sdhci_request_done()
3156 if (data && data->host_cookie == COOKIE_MAPPED) { in sdhci_request_done()
3157 if (host->bounce_buffer) { in sdhci_request_done()
3163 unsigned int length = data->bytes_xfered; in sdhci_request_done()
3165 if (length > host->bounce_buffer_size) { in sdhci_request_done()
3167 mmc_hostname(host->mmc), in sdhci_request_done()
3168 host->bounce_buffer_size, in sdhci_request_done()
3169 data->bytes_xfered); in sdhci_request_done()
3171 length = host->bounce_buffer_size; in sdhci_request_done()
3174 mmc_dev(host->mmc), in sdhci_request_done()
3175 host->bounce_addr, in sdhci_request_done()
3176 host->bounce_buffer_size, in sdhci_request_done()
3178 sg_copy_from_buffer(data->sg, in sdhci_request_done()
3179 data->sg_len, in sdhci_request_done()
3180 host->bounce_buffer, in sdhci_request_done()
3185 mmc_dev(host->mmc), in sdhci_request_done()
3186 host->bounce_addr, in sdhci_request_done()
3187 host->bounce_buffer_size, in sdhci_request_done()
3192 dma_unmap_sg(mmc_dev(host->mmc), data->sg, in sdhci_request_done()
3193 data->sg_len, in sdhci_request_done()
3196 data->host_cookie = COOKIE_UNMAPPED; in sdhci_request_done()
3200 host->mrqs_done[i] = NULL; in sdhci_request_done()
3202 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3204 if (host->ops->request_done) in sdhci_request_done()
3205 host->ops->request_done(host, mrq); in sdhci_request_done()
3207 mmc_request_done(host->mmc, mrq); in sdhci_request_done()
3228 spin_lock_irqsave(&host->lock, flags); in sdhci_timeout_timer()
3230 if (host->cmd && !sdhci_data_line_cmd(host->cmd)) { in sdhci_timeout_timer()
3231 pr_err("%s: Timeout waiting for hardware cmd interrupt.\n", in sdhci_timeout_timer()
3232 mmc_hostname(host->mmc)); in sdhci_timeout_timer()
3236 host->cmd->error = -ETIMEDOUT; in sdhci_timeout_timer()
3237 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_timeout_timer()
3240 spin_unlock_irqrestore(&host->lock, flags); in sdhci_timeout_timer()
3250 spin_lock_irqsave(&host->lock, flags); in sdhci_timeout_data_timer()
3252 if (host->data || host->data_cmd || in sdhci_timeout_data_timer()
3253 (host->cmd && sdhci_data_line_cmd(host->cmd))) { in sdhci_timeout_data_timer()
3255 mmc_hostname(host->mmc)); in sdhci_timeout_data_timer()
3259 if (host->data) { in sdhci_timeout_data_timer()
3260 host->data->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3262 queue_work(host->complete_wq, &host->complete_work); in sdhci_timeout_data_timer()
3263 } else if (host->data_cmd) { in sdhci_timeout_data_timer()
3264 host->data_cmd->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3265 sdhci_finish_mrq(host, host->data_cmd->mrq); in sdhci_timeout_data_timer()
3267 host->cmd->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3268 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_timeout_data_timer()
3272 spin_unlock_irqrestore(&host->lock, flags); in sdhci_timeout_data_timer()
3283 /* Handle auto-CMD12 error */ in sdhci_cmd_irq()
3284 if (intmask & SDHCI_INT_AUTO_CMD_ERR && host->data_cmd) { in sdhci_cmd_irq()
3285 struct mmc_request *mrq = host->data_cmd->mrq; in sdhci_cmd_irq()
3291 /* Treat auto-CMD12 error the same as data error */ in sdhci_cmd_irq()
3292 if (!mrq->sbc && (host->flags & SDHCI_AUTO_CMD12)) { in sdhci_cmd_irq()
3298 if (!host->cmd) { in sdhci_cmd_irq()
3300 * SDHCI recovers from errors by resetting the cmd and data in sdhci_cmd_irq()
3304 if (host->pending_reset) in sdhci_cmd_irq()
3307 mmc_hostname(host->mmc), (unsigned)intmask); in sdhci_cmd_irq()
3316 host->cmd->error = -ETIMEDOUT; in sdhci_cmd_irq()
3319 host->cmd->error = -EILSEQ; in sdhci_cmd_irq()
3320 if (!mmc_op_tuning(host->cmd->opcode)) in sdhci_cmd_irq()
3324 if (host->cmd->data && in sdhci_cmd_irq()
3327 host->cmd = NULL; in sdhci_cmd_irq()
3332 __sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_cmd_irq()
3336 /* Handle auto-CMD23 error */ in sdhci_cmd_irq()
3338 struct mmc_request *mrq = host->cmd->mrq; in sdhci_cmd_irq()
3341 -ETIMEDOUT : in sdhci_cmd_irq()
3342 -EILSEQ; in sdhci_cmd_irq()
3347 mrq->sbc->error = err; in sdhci_cmd_irq()
3359 void *desc = host->adma_table; in sdhci_adma_show_error()
3360 dma_addr_t dma = host->adma_addr; in sdhci_adma_show_error()
3367 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_adma_show_error()
3370 le32_to_cpu(dma_desc->addr_hi), in sdhci_adma_show_error()
3371 le32_to_cpu(dma_desc->addr_lo), in sdhci_adma_show_error()
3372 le16_to_cpu(dma_desc->len), in sdhci_adma_show_error()
3373 le16_to_cpu(dma_desc->cmd)); in sdhci_adma_show_error()
3377 le32_to_cpu(dma_desc->addr_lo), in sdhci_adma_show_error()
3378 le16_to_cpu(dma_desc->len), in sdhci_adma_show_error()
3379 le16_to_cpu(dma_desc->cmd)); in sdhci_adma_show_error()
3381 desc += host->desc_sz; in sdhci_adma_show_error()
3382 dma += host->desc_sz; in sdhci_adma_show_error()
3384 if (dma_desc->cmd & cpu_to_le16(ADMA2_END)) in sdhci_adma_show_error()
3400 if (intmask & SDHCI_INT_DATA_AVAIL && !host->data) { in sdhci_data_irq()
3404 host->tuning_done = 1; in sdhci_data_irq()
3405 wake_up(&host->buf_ready_int); in sdhci_data_irq()
3410 if (!host->data) { in sdhci_data_irq()
3411 struct mmc_command *data_cmd = host->data_cmd; in sdhci_data_irq()
3418 if (data_cmd && (data_cmd->flags & MMC_RSP_BUSY)) { in sdhci_data_irq()
3420 host->data_cmd = NULL; in sdhci_data_irq()
3421 data_cmd->error = -ETIMEDOUT; in sdhci_data_irq()
3423 __sdhci_finish_mrq(host, data_cmd->mrq); in sdhci_data_irq()
3427 host->data_cmd = NULL; in sdhci_data_irq()
3429 * Some cards handle busy-end interrupt in sdhci_data_irq()
3433 if (host->cmd == data_cmd) in sdhci_data_irq()
3436 __sdhci_finish_mrq(host, data_cmd->mrq); in sdhci_data_irq()
3442 * SDHCI recovers from errors by resetting the cmd and data in sdhci_data_irq()
3446 if (host->pending_reset) in sdhci_data_irq()
3450 mmc_hostname(host->mmc), (unsigned)intmask); in sdhci_data_irq()
3458 host->data->error = -ETIMEDOUT; in sdhci_data_irq()
3461 host->data->error = -EILSEQ; in sdhci_data_irq()
3467 host->data->error = -EILSEQ; in sdhci_data_irq()
3471 pr_err("%s: ADMA error: 0x%08x\n", mmc_hostname(host->mmc), in sdhci_data_irq()
3475 host->data->error = -EIO; in sdhci_data_irq()
3476 if (host->ops->adma_workaround) in sdhci_data_irq()
3477 host->ops->adma_workaround(host, intmask); in sdhci_data_irq()
3480 if (host->data->error) in sdhci_data_irq()
3499 dmanow = dmastart + host->data->bytes_xfered; in sdhci_data_irq()
3504 ~((dma_addr_t)SDHCI_DEFAULT_BOUNDARY_SIZE - 1)) + in sdhci_data_irq()
3506 host->data->bytes_xfered = dmanow - dmastart; in sdhci_data_irq()
3508 &dmastart, host->data->bytes_xfered, &dmanow); in sdhci_data_irq()
3513 if (host->cmd == host->data_cmd) { in sdhci_data_irq()
3519 host->data_early = 1; in sdhci_data_irq()
3530 struct mmc_data *data = mrq->data; in sdhci_defer_done()
3532 return host->pending_reset || host->always_defer_done || in sdhci_defer_done()
3533 ((host->flags & SDHCI_REQ_USE_DMA) && data && in sdhci_defer_done()
3534 data->host_cookie == COOKIE_MAPPED); in sdhci_defer_done()
3546 spin_lock(&host->lock); in sdhci_irq()
3548 if (host->runtime_suspended) { in sdhci_irq()
3549 spin_unlock(&host->lock); in sdhci_irq()
3562 if (host->ops->irq) { in sdhci_irq()
3563 intmask = host->ops->irq(host, intmask); in sdhci_irq()
3588 host->ier &= ~(SDHCI_INT_CARD_INSERT | in sdhci_irq()
3590 host->ier |= present ? SDHCI_INT_CARD_REMOVE : in sdhci_irq()
3592 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_irq()
3593 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_irq()
3598 host->thread_isr |= intmask & (SDHCI_INT_CARD_INSERT | in sdhci_irq()
3611 mmc_hostname(host->mmc)); in sdhci_irq()
3614 mmc_retune_needed(host->mmc); in sdhci_irq()
3617 (host->ier & SDHCI_INT_CARD_INT)) { in sdhci_irq()
3619 sdio_signal_irq(host->mmc); in sdhci_irq()
3636 } while (intmask && --max_loops); in sdhci_irq()
3640 struct mmc_request *mrq = host->mrqs_done[i]; in sdhci_irq()
3649 host->mrqs_done[i] = NULL; in sdhci_irq()
3653 if (host->deferred_cmd) in sdhci_irq()
3656 spin_unlock(&host->lock); in sdhci_irq()
3663 if (host->ops->request_done) in sdhci_irq()
3664 host->ops->request_done(host, mrqs_done[i]); in sdhci_irq()
3666 mmc_request_done(host->mmc, mrqs_done[i]); in sdhci_irq()
3671 mmc_hostname(host->mmc), unexpected); in sdhci_irq()
3682 struct mmc_command *cmd; in sdhci_thread_irq() local
3689 spin_lock_irqsave(&host->lock, flags); in sdhci_thread_irq()
3691 isr = host->thread_isr; in sdhci_thread_irq()
3692 host->thread_isr = 0; in sdhci_thread_irq()
3694 cmd = host->deferred_cmd; in sdhci_thread_irq()
3695 if (cmd && !sdhci_send_command_retry(host, cmd, flags)) in sdhci_thread_irq()
3696 sdhci_finish_mrq(host, cmd->mrq); in sdhci_thread_irq()
3698 spin_unlock_irqrestore(&host->lock, flags); in sdhci_thread_irq()
3701 struct mmc_host *mmc = host->mmc; in sdhci_thread_irq()
3703 mmc->ops->card_event(mmc); in sdhci_thread_irq()
3720 return mmc_card_is_removable(host->mmc) && in sdhci_cd_irq_can_wakeup()
3721 !(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && in sdhci_cd_irq_can_wakeup()
3722 !mmc_can_gpio_cd(host->mmc); in sdhci_cd_irq_can_wakeup()
3727 * the Interrupt Status Enable register too. See 'Table 1-6: Wakeup Signal
3746 if (mmc_card_wake_sdio_irq(host->mmc)) { in sdhci_enable_irq_wakeups()
3761 host->irq_wake_enabled = !enable_irq_wake(host->irq); in sdhci_enable_irq_wakeups()
3763 return host->irq_wake_enabled; in sdhci_enable_irq_wakeups()
3776 disable_irq_wake(host->irq); in sdhci_disable_irq_wakeups()
3778 host->irq_wake_enabled = false; in sdhci_disable_irq_wakeups()
3785 mmc_retune_timer_stop(host->mmc); in sdhci_suspend_host()
3787 if (!device_may_wakeup(mmc_dev(host->mmc)) || in sdhci_suspend_host()
3789 host->ier = 0; in sdhci_suspend_host()
3792 free_irq(host->irq, host); in sdhci_suspend_host()
3802 struct mmc_host *mmc = host->mmc; in sdhci_resume_host()
3805 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_resume_host()
3806 if (host->ops->enable_dma) in sdhci_resume_host()
3807 host->ops->enable_dma(host); in sdhci_resume_host()
3810 if ((mmc->pm_flags & MMC_PM_KEEP_POWER) && in sdhci_resume_host()
3811 (host->quirks2 & SDHCI_QUIRK2_HOST_OFF_CARD_ON)) { in sdhci_resume_host()
3814 host->pwr = 0; in sdhci_resume_host()
3815 host->clock = 0; in sdhci_resume_host()
3816 host->reinit_uhs = true; in sdhci_resume_host()
3817 mmc->ops->set_ios(mmc, &mmc->ios); in sdhci_resume_host()
3819 sdhci_init(host, (mmc->pm_flags & MMC_PM_KEEP_POWER)); in sdhci_resume_host()
3822 if (host->irq_wake_enabled) { in sdhci_resume_host()
3825 ret = request_threaded_irq(host->irq, sdhci_irq, in sdhci_resume_host()
3843 mmc_retune_timer_stop(host->mmc); in sdhci_runtime_suspend_host()
3845 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_suspend_host()
3846 host->ier &= SDHCI_INT_CARD_INT; in sdhci_runtime_suspend_host()
3847 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_runtime_suspend_host()
3848 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_runtime_suspend_host()
3849 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_suspend_host()
3851 synchronize_hardirq(host->irq); in sdhci_runtime_suspend_host()
3853 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_suspend_host()
3854 host->runtime_suspended = true; in sdhci_runtime_suspend_host()
3855 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_suspend_host()
3863 struct mmc_host *mmc = host->mmc; in sdhci_runtime_resume_host()
3865 int host_flags = host->flags; in sdhci_runtime_resume_host()
3868 if (host->ops->enable_dma) in sdhci_runtime_resume_host()
3869 host->ops->enable_dma(host); in sdhci_runtime_resume_host()
3874 if (mmc->ios.power_mode != MMC_POWER_UNDEFINED && in sdhci_runtime_resume_host()
3875 mmc->ios.power_mode != MMC_POWER_OFF) { in sdhci_runtime_resume_host()
3876 /* Force clock and power re-program */ in sdhci_runtime_resume_host()
3877 host->pwr = 0; in sdhci_runtime_resume_host()
3878 host->clock = 0; in sdhci_runtime_resume_host()
3879 host->reinit_uhs = true; in sdhci_runtime_resume_host()
3880 mmc->ops->start_signal_voltage_switch(mmc, &mmc->ios); in sdhci_runtime_resume_host()
3881 mmc->ops->set_ios(mmc, &mmc->ios); in sdhci_runtime_resume_host()
3884 !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) { in sdhci_runtime_resume_host()
3885 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_resume_host()
3887 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_resume_host()
3890 if ((mmc->caps2 & MMC_CAP2_HS400_ES) && in sdhci_runtime_resume_host()
3891 mmc->ops->hs400_enhanced_strobe) in sdhci_runtime_resume_host()
3892 mmc->ops->hs400_enhanced_strobe(mmc, &mmc->ios); in sdhci_runtime_resume_host()
3895 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_resume_host()
3897 host->runtime_suspended = false; in sdhci_runtime_resume_host()
3906 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_resume_host()
3926 spin_lock_irqsave(&host->lock, flags); in sdhci_cqe_enable()
3933 * for cmd queuing to fetch both command and transfer descriptors. in sdhci_cqe_enable()
3935 if (host->v4_mode && (host->caps1 & SDHCI_CAN_DO_ADMA3)) in sdhci_cqe_enable()
3937 else if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_cqe_enable()
3943 sdhci_writew(host, SDHCI_MAKE_BLKSZ(host->sdma_boundary, 512), in sdhci_cqe_enable()
3949 host->ier = host->cqe_ier; in sdhci_cqe_enable()
3951 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_cqe_enable()
3952 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_cqe_enable()
3954 host->cqe_on = true; in sdhci_cqe_enable()
3957 mmc_hostname(mmc), host->ier, in sdhci_cqe_enable()
3960 spin_unlock_irqrestore(&host->lock, flags); in sdhci_cqe_enable()
3969 spin_lock_irqsave(&host->lock, flags); in sdhci_cqe_disable()
3973 host->cqe_on = false; in sdhci_cqe_disable()
3979 mmc_hostname(mmc), host->ier, in sdhci_cqe_disable()
3982 spin_unlock_irqrestore(&host->lock, flags); in sdhci_cqe_disable()
3991 if (!host->cqe_on) in sdhci_cqe_irq()
3995 *cmd_error = -EILSEQ; in sdhci_cqe_irq()
3999 *cmd_error = -ETIMEDOUT; in sdhci_cqe_irq()
4005 *data_error = -EILSEQ; in sdhci_cqe_irq()
4009 *data_error = -ETIMEDOUT; in sdhci_cqe_irq()
4012 *data_error = -EIO; in sdhci_cqe_irq()
4018 mask = intmask & host->cqe_ier; in sdhci_cqe_irq()
4023 mmc_hostname(host->mmc)); in sdhci_cqe_irq()
4025 intmask &= ~(host->cqe_ier | SDHCI_INT_ERROR); in sdhci_cqe_irq()
4029 mmc_hostname(host->mmc), intmask); in sdhci_cqe_irq()
4054 return ERR_PTR(-ENOMEM); in sdhci_alloc_host()
4057 host->mmc = mmc; in sdhci_alloc_host()
4058 host->mmc_host_ops = sdhci_ops; in sdhci_alloc_host()
4059 mmc->ops = &host->mmc_host_ops; in sdhci_alloc_host()
4061 host->flags = SDHCI_SIGNALING_330; in sdhci_alloc_host()
4063 host->cqe_ier = SDHCI_CQE_INT_MASK; in sdhci_alloc_host()
4064 host->cqe_err_ier = SDHCI_CQE_INT_ERR_MASK; in sdhci_alloc_host()
4066 host->tuning_delay = -1; in sdhci_alloc_host()
4067 host->tuning_loop_count = MAX_TUNING_LOOP; in sdhci_alloc_host()
4069 host->sdma_boundary = SDHCI_DEFAULT_BOUNDARY_ARG; in sdhci_alloc_host()
4076 host->adma_table_cnt = SDHCI_MAX_SEGS * 2 + 1; in sdhci_alloc_host()
4077 host->max_adma = 65536; in sdhci_alloc_host()
4079 host->max_timeout_count = 0xE; in sdhci_alloc_host()
4088 struct mmc_host *mmc = host->mmc; in sdhci_set_dma_mask()
4090 int ret = -EINVAL; in sdhci_set_dma_mask()
4092 if (host->quirks2 & SDHCI_QUIRK2_BROKEN_64_BIT_DMA) in sdhci_set_dma_mask()
4093 host->flags &= ~SDHCI_USE_64_BIT_DMA; in sdhci_set_dma_mask()
4095 /* Try 64-bit mask if hardware is capable of it */ in sdhci_set_dma_mask()
4096 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_set_dma_mask()
4099 pr_warn("%s: Failed to set 64-bit DMA mask.\n", in sdhci_set_dma_mask()
4101 host->flags &= ~SDHCI_USE_64_BIT_DMA; in sdhci_set_dma_mask()
4105 /* 32-bit mask as default & fallback */ in sdhci_set_dma_mask()
4109 pr_warn("%s: Failed to set 32-bit DMA mask.\n", in sdhci_set_dma_mask()
4123 if (host->read_caps) in __sdhci_read_caps()
4126 host->read_caps = true; in __sdhci_read_caps()
4129 host->quirks = debug_quirks; in __sdhci_read_caps()
4132 host->quirks2 = debug_quirks2; in __sdhci_read_caps()
4136 if (host->v4_mode) in __sdhci_read_caps()
4139 device_property_read_u64(mmc_dev(host->mmc), in __sdhci_read_caps()
4140 "sdhci-caps-mask", &dt_caps_mask); in __sdhci_read_caps()
4141 device_property_read_u64(mmc_dev(host->mmc), in __sdhci_read_caps()
4142 "sdhci-caps", &dt_caps); in __sdhci_read_caps()
4145 host->version = (v & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT; in __sdhci_read_caps()
4147 if (host->quirks & SDHCI_QUIRK_MISSING_CAPS) in __sdhci_read_caps()
4151 host->caps = *caps; in __sdhci_read_caps()
4153 host->caps = sdhci_readl(host, SDHCI_CAPABILITIES); in __sdhci_read_caps()
4154 host->caps &= ~lower_32_bits(dt_caps_mask); in __sdhci_read_caps()
4155 host->caps |= lower_32_bits(dt_caps); in __sdhci_read_caps()
4158 if (host->version < SDHCI_SPEC_300) in __sdhci_read_caps()
4162 host->caps1 = *caps1; in __sdhci_read_caps()
4164 host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1); in __sdhci_read_caps()
4165 host->caps1 &= ~upper_32_bits(dt_caps_mask); in __sdhci_read_caps()
4166 host->caps1 |= upper_32_bits(dt_caps); in __sdhci_read_caps()
4173 struct mmc_host *mmc = host->mmc; in sdhci_allocate_bounce_buffer()
4189 if (mmc->max_req_size < bounce_size) in sdhci_allocate_bounce_buffer()
4190 bounce_size = mmc->max_req_size; in sdhci_allocate_bounce_buffer()
4198 host->bounce_buffer = devm_kmalloc(mmc_dev(mmc), in sdhci_allocate_bounce_buffer()
4201 if (!host->bounce_buffer) { in sdhci_allocate_bounce_buffer()
4207 * mmc->max_segs == 1. in sdhci_allocate_bounce_buffer()
4212 host->bounce_addr = dma_map_single(mmc_dev(mmc), in sdhci_allocate_bounce_buffer()
4213 host->bounce_buffer, in sdhci_allocate_bounce_buffer()
4216 ret = dma_mapping_error(mmc_dev(mmc), host->bounce_addr); in sdhci_allocate_bounce_buffer()
4218 devm_kfree(mmc_dev(mmc), host->bounce_buffer); in sdhci_allocate_bounce_buffer()
4219 host->bounce_buffer = NULL; in sdhci_allocate_bounce_buffer()
4224 host->bounce_buffer_size = bounce_size; in sdhci_allocate_bounce_buffer()
4227 mmc->max_segs = max_blocks; in sdhci_allocate_bounce_buffer()
4228 mmc->max_seg_size = bounce_size; in sdhci_allocate_bounce_buffer()
4229 mmc->max_req_size = bounce_size; in sdhci_allocate_bounce_buffer()
4239 * version 4.10 in Capabilities Register is used as 64-bit System in sdhci_can_64bit_dma()
4242 if (host->version >= SDHCI_SPEC_410 && host->v4_mode) in sdhci_can_64bit_dma()
4243 return host->caps & SDHCI_CAN_64BIT_V4; in sdhci_can_64bit_dma()
4245 return host->caps & SDHCI_CAN_64BIT; in sdhci_can_64bit_dma()
4260 return -EINVAL; in sdhci_setup_host()
4262 mmc = host->mmc; in sdhci_setup_host()
4270 if (!mmc->supply.vqmmc) { in sdhci_setup_host()
4286 override_timeout_clk = host->timeout_clk; in sdhci_setup_host()
4288 if (host->version > SDHCI_SPEC_420) { in sdhci_setup_host()
4290 mmc_hostname(mmc), host->version); in sdhci_setup_host()
4293 if (host->quirks & SDHCI_QUIRK_FORCE_DMA) in sdhci_setup_host()
4294 host->flags |= SDHCI_USE_SDMA; in sdhci_setup_host()
4295 else if (!(host->caps & SDHCI_CAN_DO_SDMA)) in sdhci_setup_host()
4298 host->flags |= SDHCI_USE_SDMA; in sdhci_setup_host()
4300 if ((host->quirks & SDHCI_QUIRK_BROKEN_DMA) && in sdhci_setup_host()
4301 (host->flags & SDHCI_USE_SDMA)) { in sdhci_setup_host()
4303 host->flags &= ~SDHCI_USE_SDMA; in sdhci_setup_host()
4306 if ((host->version >= SDHCI_SPEC_200) && in sdhci_setup_host()
4307 (host->caps & SDHCI_CAN_DO_ADMA2)) in sdhci_setup_host()
4308 host->flags |= SDHCI_USE_ADMA; in sdhci_setup_host()
4310 if ((host->quirks & SDHCI_QUIRK_BROKEN_ADMA) && in sdhci_setup_host()
4311 (host->flags & SDHCI_USE_ADMA)) { in sdhci_setup_host()
4313 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4317 host->flags |= SDHCI_USE_64_BIT_DMA; in sdhci_setup_host()
4319 if (host->use_external_dma) { in sdhci_setup_host()
4321 if (ret == -EPROBE_DEFER) in sdhci_setup_host()
4331 host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA); in sdhci_setup_host()
4334 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_setup_host()
4335 if (host->ops->set_dma_mask) in sdhci_setup_host()
4336 ret = host->ops->set_dma_mask(host); in sdhci_setup_host()
4340 if (!ret && host->ops->enable_dma) in sdhci_setup_host()
4341 ret = host->ops->enable_dma(host); in sdhci_setup_host()
4344 pr_warn("%s: No suitable DMA available - falling back to PIO\n", in sdhci_setup_host()
4346 host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA); in sdhci_setup_host()
4352 /* SDMA does not support 64-bit DMA if v4 mode not set */ in sdhci_setup_host()
4353 if ((host->flags & SDHCI_USE_64_BIT_DMA) && !host->v4_mode) in sdhci_setup_host()
4354 host->flags &= ~SDHCI_USE_SDMA; in sdhci_setup_host()
4356 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4360 if (!(host->flags & SDHCI_USE_64_BIT_DMA)) in sdhci_setup_host()
4361 host->alloc_desc_sz = SDHCI_ADMA2_32_DESC_SZ; in sdhci_setup_host()
4362 else if (!host->alloc_desc_sz) in sdhci_setup_host()
4363 host->alloc_desc_sz = SDHCI_ADMA2_64_DESC_SZ(host); in sdhci_setup_host()
4365 host->desc_sz = host->alloc_desc_sz; in sdhci_setup_host()
4366 host->adma_table_sz = host->adma_table_cnt * host->desc_sz; in sdhci_setup_host()
4368 host->align_buffer_sz = SDHCI_MAX_SEGS * SDHCI_ADMA2_ALIGN; in sdhci_setup_host()
4370 * Use zalloc to zero the reserved high 32-bits of 128-bit in sdhci_setup_host()
4374 host->align_buffer_sz + host->adma_table_sz, in sdhci_setup_host()
4377 pr_warn("%s: Unable to allocate ADMA buffers - falling back to standard DMA\n", in sdhci_setup_host()
4379 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4380 } else if ((dma + host->align_buffer_sz) & in sdhci_setup_host()
4381 (SDHCI_ADMA2_DESC_ALIGN - 1)) { in sdhci_setup_host()
4384 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4385 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_setup_host()
4386 host->adma_table_sz, buf, dma); in sdhci_setup_host()
4388 host->align_buffer = buf; in sdhci_setup_host()
4389 host->align_addr = dma; in sdhci_setup_host()
4391 host->adma_table = buf + host->align_buffer_sz; in sdhci_setup_host()
4392 host->adma_addr = dma + host->align_buffer_sz; in sdhci_setup_host()
4401 if (!(host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA))) { in sdhci_setup_host()
4402 host->dma_mask = DMA_BIT_MASK(64); in sdhci_setup_host()
4403 mmc_dev(mmc)->dma_mask = &host->dma_mask; in sdhci_setup_host()
4406 if (host->version >= SDHCI_SPEC_300) in sdhci_setup_host()
4407 host->max_clk = FIELD_GET(SDHCI_CLOCK_V3_BASE_MASK, host->caps); in sdhci_setup_host()
4409 host->max_clk = FIELD_GET(SDHCI_CLOCK_BASE_MASK, host->caps); in sdhci_setup_host()
4411 host->max_clk *= 1000000; in sdhci_setup_host()
4412 if (host->max_clk == 0 || host->quirks & in sdhci_setup_host()
4414 if (!host->ops->get_max_clock) { in sdhci_setup_host()
4417 ret = -ENODEV; in sdhci_setup_host()
4420 host->max_clk = host->ops->get_max_clock(host); in sdhci_setup_host()
4427 host->clk_mul = FIELD_GET(SDHCI_CLOCK_MUL_MASK, host->caps1); in sdhci_setup_host()
4435 if (host->clk_mul) in sdhci_setup_host()
4436 host->clk_mul += 1; in sdhci_setup_host()
4441 max_clk = host->max_clk; in sdhci_setup_host()
4443 if (host->ops->get_min_clock) in sdhci_setup_host()
4444 mmc->f_min = host->ops->get_min_clock(host); in sdhci_setup_host()
4445 else if (host->version >= SDHCI_SPEC_300) { in sdhci_setup_host()
4446 if (host->clk_mul) in sdhci_setup_host()
4447 max_clk = host->max_clk * host->clk_mul; in sdhci_setup_host()
4452 mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300; in sdhci_setup_host()
4454 mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200; in sdhci_setup_host()
4456 if (!mmc->f_max || mmc->f_max > max_clk) in sdhci_setup_host()
4457 mmc->f_max = max_clk; in sdhci_setup_host()
4459 if (!(host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)) { in sdhci_setup_host()
4460 host->timeout_clk = FIELD_GET(SDHCI_TIMEOUT_CLK_MASK, host->caps); in sdhci_setup_host()
4462 if (host->caps & SDHCI_TIMEOUT_CLK_UNIT) in sdhci_setup_host()
4463 host->timeout_clk *= 1000; in sdhci_setup_host()
4465 if (host->timeout_clk == 0) { in sdhci_setup_host()
4466 if (!host->ops->get_timeout_clock) { in sdhci_setup_host()
4469 ret = -ENODEV; in sdhci_setup_host()
4473 host->timeout_clk = in sdhci_setup_host()
4474 DIV_ROUND_UP(host->ops->get_timeout_clock(host), in sdhci_setup_host()
4479 host->timeout_clk = override_timeout_clk; in sdhci_setup_host()
4481 mmc->max_busy_timeout = host->ops->get_max_timeout_count ? in sdhci_setup_host()
4482 host->ops->get_max_timeout_count(host) : 1 << 27; in sdhci_setup_host()
4483 mmc->max_busy_timeout /= host->timeout_clk; in sdhci_setup_host()
4486 if (host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT && in sdhci_setup_host()
4487 !host->ops->get_max_timeout_count) in sdhci_setup_host()
4488 mmc->max_busy_timeout = 0; in sdhci_setup_host()
4490 mmc->caps |= MMC_CAP_SDIO_IRQ | MMC_CAP_CMD23; in sdhci_setup_host()
4491 mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD; in sdhci_setup_host()
4493 if (host->quirks & SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12) in sdhci_setup_host()
4494 host->flags |= SDHCI_AUTO_CMD12; in sdhci_setup_host()
4497 * For v3 mode, Auto-CMD23 stuff only works in ADMA or PIO. in sdhci_setup_host()
4498 * For v4 mode, SDMA may use Auto-CMD23 as well. in sdhci_setup_host()
4500 if ((host->version >= SDHCI_SPEC_300) && in sdhci_setup_host()
4501 ((host->flags & SDHCI_USE_ADMA) || in sdhci_setup_host()
4502 !(host->flags & SDHCI_USE_SDMA) || host->v4_mode) && in sdhci_setup_host()
4503 !(host->quirks2 & SDHCI_QUIRK2_ACMD23_BROKEN)) { in sdhci_setup_host()
4504 host->flags |= SDHCI_AUTO_CMD23; in sdhci_setup_host()
4505 DBG("Auto-CMD23 available\n"); in sdhci_setup_host()
4507 DBG("Auto-CMD23 unavailable\n"); in sdhci_setup_host()
4511 * A controller may support 8-bit width, but the board itself in sdhci_setup_host()
4512 * might not have the pins brought out. Boards that support in sdhci_setup_host()
4513 * 8-bit width must set "mmc->caps |= MMC_CAP_8_BIT_DATA;" in in sdhci_setup_host()
4515 * won't assume 8-bit width for hosts without that CAP. in sdhci_setup_host()
4517 if (!(host->quirks & SDHCI_QUIRK_FORCE_1_BIT_DATA)) in sdhci_setup_host()
4518 mmc->caps |= MMC_CAP_4_BIT_DATA; in sdhci_setup_host()
4520 if (host->quirks2 & SDHCI_QUIRK2_HOST_NO_CMD23) in sdhci_setup_host()
4521 mmc->caps &= ~MMC_CAP_CMD23; in sdhci_setup_host()
4523 if (host->caps & SDHCI_CAN_DO_HISPD) in sdhci_setup_host()
4524 mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED; in sdhci_setup_host()
4526 if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && in sdhci_setup_host()
4529 mmc->caps |= MMC_CAP_NEEDS_POLL; in sdhci_setup_host()
4531 if (!IS_ERR(mmc->supply.vqmmc)) { in sdhci_setup_host()
4533 ret = regulator_enable(mmc->supply.vqmmc); in sdhci_setup_host()
4534 host->sdhci_core_to_disable_vqmmc = !ret; in sdhci_setup_host()
4538 if (!regulator_is_supported_voltage(mmc->supply.vqmmc, 1700000, in sdhci_setup_host()
4540 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | in sdhci_setup_host()
4545 if (!regulator_is_supported_voltage(mmc->supply.vqmmc, 2700000, in sdhci_setup_host()
4547 host->flags &= ~SDHCI_SIGNALING_330; in sdhci_setup_host()
4552 mmc->supply.vqmmc = ERR_PTR(-EINVAL); in sdhci_setup_host()
4557 if (host->quirks2 & SDHCI_QUIRK2_NO_1_8_V) { in sdhci_setup_host()
4558 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | in sdhci_setup_host()
4562 * (indicated using mmc-hs200-1_8v/mmc-hs400-1_8v dt property), in sdhci_setup_host()
4568 mmc->caps2 &= ~(MMC_CAP2_HSX00_1_8V | MMC_CAP2_HS400_ES); in sdhci_setup_host()
4569 mmc->caps &= ~(MMC_CAP_1_8V_DDR | MMC_CAP_UHS); in sdhci_setup_host()
4572 /* Any UHS-I mode in caps implies SDR12 and SDR25 support. */ in sdhci_setup_host()
4573 if (host->caps1 & (SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | in sdhci_setup_host()
4575 mmc->caps |= MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25; in sdhci_setup_host()
4578 if (host->caps1 & SDHCI_SUPPORT_SDR104) { in sdhci_setup_host()
4579 mmc->caps |= MMC_CAP_UHS_SDR104 | MMC_CAP_UHS_SDR50; in sdhci_setup_host()
4583 if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200)) in sdhci_setup_host()
4584 mmc->caps2 |= MMC_CAP2_HS200; in sdhci_setup_host()
4585 } else if (host->caps1 & SDHCI_SUPPORT_SDR50) { in sdhci_setup_host()
4586 mmc->caps |= MMC_CAP_UHS_SDR50; in sdhci_setup_host()
4589 if (host->quirks2 & SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 && in sdhci_setup_host()
4590 (host->caps1 & SDHCI_SUPPORT_HS400)) in sdhci_setup_host()
4591 mmc->caps2 |= MMC_CAP2_HS400; in sdhci_setup_host()
4593 if ((mmc->caps2 & MMC_CAP2_HSX00_1_2V) && in sdhci_setup_host()
4594 (IS_ERR(mmc->supply.vqmmc) || in sdhci_setup_host()
4595 !regulator_is_supported_voltage(mmc->supply.vqmmc, 1100000, in sdhci_setup_host()
4597 mmc->caps2 &= ~MMC_CAP2_HSX00_1_2V; in sdhci_setup_host()
4599 if ((host->caps1 & SDHCI_SUPPORT_DDR50) && in sdhci_setup_host()
4600 !(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50)) in sdhci_setup_host()
4601 mmc->caps |= MMC_CAP_UHS_DDR50; in sdhci_setup_host()
4604 if (host->caps1 & SDHCI_USE_SDR50_TUNING) in sdhci_setup_host()
4605 host->flags |= SDHCI_SDR50_NEEDS_TUNING; in sdhci_setup_host()
4608 if (host->caps1 & SDHCI_DRIVER_TYPE_A) in sdhci_setup_host()
4609 mmc->caps |= MMC_CAP_DRIVER_TYPE_A; in sdhci_setup_host()
4610 if (host->caps1 & SDHCI_DRIVER_TYPE_C) in sdhci_setup_host()
4611 mmc->caps |= MMC_CAP_DRIVER_TYPE_C; in sdhci_setup_host()
4612 if (host->caps1 & SDHCI_DRIVER_TYPE_D) in sdhci_setup_host()
4613 mmc->caps |= MMC_CAP_DRIVER_TYPE_D; in sdhci_setup_host()
4615 /* Initial value for re-tuning timer count */ in sdhci_setup_host()
4616 host->tuning_count = FIELD_GET(SDHCI_RETUNING_TIMER_COUNT_MASK, in sdhci_setup_host()
4617 host->caps1); in sdhci_setup_host()
4620 * In case Re-tuning Timer is not disabled, the actual value of in sdhci_setup_host()
4621 * re-tuning timer will be 2 ^ (n - 1). in sdhci_setup_host()
4623 if (host->tuning_count) in sdhci_setup_host()
4624 host->tuning_count = 1 << (host->tuning_count - 1); in sdhci_setup_host()
4626 /* Re-tuning mode supported by the Host Controller */ in sdhci_setup_host()
4627 host->tuning_mode = FIELD_GET(SDHCI_RETUNING_MODE_MASK, host->caps1); in sdhci_setup_host()
4639 if (!max_current_caps && !IS_ERR(mmc->supply.vmmc)) { in sdhci_setup_host()
4640 int curr = regulator_get_current_limit(mmc->supply.vmmc); in sdhci_setup_host()
4655 if (host->caps & SDHCI_CAN_VDD_330) { in sdhci_setup_host()
4658 mmc->max_current_330 = FIELD_GET(SDHCI_MAX_CURRENT_330_MASK, in sdhci_setup_host()
4662 if (host->caps & SDHCI_CAN_VDD_300) { in sdhci_setup_host()
4665 mmc->max_current_300 = FIELD_GET(SDHCI_MAX_CURRENT_300_MASK, in sdhci_setup_host()
4669 if (host->caps & SDHCI_CAN_VDD_180) { in sdhci_setup_host()
4672 mmc->max_current_180 = FIELD_GET(SDHCI_MAX_CURRENT_180_MASK, in sdhci_setup_host()
4678 if (host->ocr_mask) in sdhci_setup_host()
4679 ocr_avail = host->ocr_mask; in sdhci_setup_host()
4682 if (mmc->ocr_avail) in sdhci_setup_host()
4683 ocr_avail = mmc->ocr_avail; in sdhci_setup_host()
4685 mmc->ocr_avail = ocr_avail; in sdhci_setup_host()
4686 mmc->ocr_avail_sdio = ocr_avail; in sdhci_setup_host()
4687 if (host->ocr_avail_sdio) in sdhci_setup_host()
4688 mmc->ocr_avail_sdio &= host->ocr_avail_sdio; in sdhci_setup_host()
4689 mmc->ocr_avail_sd = ocr_avail; in sdhci_setup_host()
4690 if (host->ocr_avail_sd) in sdhci_setup_host()
4691 mmc->ocr_avail_sd &= host->ocr_avail_sd; in sdhci_setup_host()
4693 mmc->ocr_avail_sd &= ~MMC_VDD_165_195; in sdhci_setup_host()
4694 mmc->ocr_avail_mmc = ocr_avail; in sdhci_setup_host()
4695 if (host->ocr_avail_mmc) in sdhci_setup_host()
4696 mmc->ocr_avail_mmc &= host->ocr_avail_mmc; in sdhci_setup_host()
4698 if (mmc->ocr_avail == 0) { in sdhci_setup_host()
4701 ret = -ENODEV; in sdhci_setup_host()
4705 if ((mmc->caps & (MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 | in sdhci_setup_host()
4708 (mmc->caps2 & (MMC_CAP2_HS200_1_8V_SDR | MMC_CAP2_HS400_1_8V))) in sdhci_setup_host()
4709 host->flags |= SDHCI_SIGNALING_180; in sdhci_setup_host()
4711 if (mmc->caps2 & MMC_CAP2_HSX00_1_2V) in sdhci_setup_host()
4712 host->flags |= SDHCI_SIGNALING_120; in sdhci_setup_host()
4714 spin_lock_init(&host->lock); in sdhci_setup_host()
4721 mmc->max_req_size = 524288; in sdhci_setup_host()
4727 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4728 mmc->max_segs = SDHCI_MAX_SEGS; in sdhci_setup_host()
4729 } else if (host->flags & SDHCI_USE_SDMA) { in sdhci_setup_host()
4730 mmc->max_segs = 1; in sdhci_setup_host()
4731 mmc->max_req_size = min_t(size_t, mmc->max_req_size, in sdhci_setup_host()
4734 mmc->max_segs = SDHCI_MAX_SEGS; in sdhci_setup_host()
4742 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4743 if (host->quirks & SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC) { in sdhci_setup_host()
4744 host->max_adma = 65532; /* 32-bit alignment */ in sdhci_setup_host()
4745 mmc->max_seg_size = 65535; in sdhci_setup_host()
4747 mmc->max_seg_size = 65536; in sdhci_setup_host()
4750 mmc->max_seg_size = mmc->max_req_size; in sdhci_setup_host()
4757 if (host->quirks & SDHCI_QUIRK_FORCE_BLK_SZ_2048) { in sdhci_setup_host()
4758 mmc->max_blk_size = 2; in sdhci_setup_host()
4760 mmc->max_blk_size = (host->caps & SDHCI_MAX_BLOCK_MASK) >> in sdhci_setup_host()
4762 if (mmc->max_blk_size >= 3) { in sdhci_setup_host()
4765 mmc->max_blk_size = 0; in sdhci_setup_host()
4769 mmc->max_blk_size = 512 << mmc->max_blk_size; in sdhci_setup_host()
4774 mmc->max_blk_count = (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535; in sdhci_setup_host()
4776 if (mmc->max_segs == 1) in sdhci_setup_host()
4777 /* This may alter mmc->*_blk_* parameters */ in sdhci_setup_host()
4783 if (host->sdhci_core_to_disable_vqmmc) in sdhci_setup_host()
4784 regulator_disable(mmc->supply.vqmmc); in sdhci_setup_host()
4786 if (host->align_buffer) in sdhci_setup_host()
4787 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_setup_host()
4788 host->adma_table_sz, host->align_buffer, in sdhci_setup_host()
4789 host->align_addr); in sdhci_setup_host()
4790 host->adma_table = NULL; in sdhci_setup_host()
4791 host->align_buffer = NULL; in sdhci_setup_host()
4799 struct mmc_host *mmc = host->mmc; in sdhci_cleanup_host()
4801 if (host->sdhci_core_to_disable_vqmmc) in sdhci_cleanup_host()
4802 regulator_disable(mmc->supply.vqmmc); in sdhci_cleanup_host()
4804 if (host->align_buffer) in sdhci_cleanup_host()
4805 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_cleanup_host()
4806 host->adma_table_sz, host->align_buffer, in sdhci_cleanup_host()
4807 host->align_addr); in sdhci_cleanup_host()
4809 if (host->use_external_dma) in sdhci_cleanup_host()
4812 host->adma_table = NULL; in sdhci_cleanup_host()
4813 host->align_buffer = NULL; in sdhci_cleanup_host()
4820 struct mmc_host *mmc = host->mmc; in __sdhci_add_host()
4823 if ((mmc->caps2 & MMC_CAP2_CQE) && in __sdhci_add_host()
4824 (host->quirks & SDHCI_QUIRK_BROKEN_CQE)) { in __sdhci_add_host()
4825 mmc->caps2 &= ~MMC_CAP2_CQE; in __sdhci_add_host()
4826 mmc->cqe_ops = NULL; in __sdhci_add_host()
4829 host->complete_wq = alloc_workqueue("sdhci", flags, 0); in __sdhci_add_host()
4830 if (!host->complete_wq) in __sdhci_add_host()
4831 return -ENOMEM; in __sdhci_add_host()
4833 INIT_WORK(&host->complete_work, sdhci_complete_work); in __sdhci_add_host()
4835 timer_setup(&host->timer, sdhci_timeout_timer, 0); in __sdhci_add_host()
4836 timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); in __sdhci_add_host()
4838 init_waitqueue_head(&host->buf_ready_int); in __sdhci_add_host()
4842 ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq, in __sdhci_add_host()
4846 mmc_hostname(mmc), host->irq, ret); in __sdhci_add_host()
4862 mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)), in __sdhci_add_host()
4863 host->use_external_dma ? "External DMA" : in __sdhci_add_host()
4864 (host->flags & SDHCI_USE_ADMA) ? in __sdhci_add_host()
4865 (host->flags & SDHCI_USE_64_BIT_DMA) ? "ADMA 64-bit" : "ADMA" : in __sdhci_add_host()
4866 (host->flags & SDHCI_USE_SDMA) ? "DMA" : "PIO"); in __sdhci_add_host()
4878 free_irq(host->irq, host); in __sdhci_add_host()
4880 destroy_workqueue(host->complete_wq); in __sdhci_add_host()
4909 struct mmc_host *mmc = host->mmc; in sdhci_remove_host()
4913 spin_lock_irqsave(&host->lock, flags); in sdhci_remove_host()
4915 host->flags |= SDHCI_DEVICE_DEAD; in sdhci_remove_host()
4920 sdhci_error_out_mrqs(host, -ENOMEDIUM); in sdhci_remove_host()
4923 spin_unlock_irqrestore(&host->lock, flags); in sdhci_remove_host()
4937 free_irq(host->irq, host); in sdhci_remove_host()
4939 del_timer_sync(&host->timer); in sdhci_remove_host()
4940 del_timer_sync(&host->data_timer); in sdhci_remove_host()
4942 destroy_workqueue(host->complete_wq); in sdhci_remove_host()
4944 if (host->sdhci_core_to_disable_vqmmc) in sdhci_remove_host()
4945 regulator_disable(mmc->supply.vqmmc); in sdhci_remove_host()
4947 if (host->align_buffer) in sdhci_remove_host()
4948 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_remove_host()
4949 host->adma_table_sz, host->align_buffer, in sdhci_remove_host()
4950 host->align_addr); in sdhci_remove_host()
4952 if (host->use_external_dma) in sdhci_remove_host()
4955 host->adma_table = NULL; in sdhci_remove_host()
4956 host->align_buffer = NULL; in sdhci_remove_host()
4963 mmc_free_host(host->mmc); in sdhci_free_host()