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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>
34 #include <linux/mmc/slot-gpio.h>
41 pr_debug("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
44 pr_err("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
74 SDHCI_DUMP("Wake-up: 0x%08x | Clock: 0x%08x\n", in sdhci_dumpregs()
80 SDHCI_DUMP("Int enab: 0x%08x | Sig enab: 0x%08x\n", in sdhci_dumpregs()
101 if (host->flags & SDHCI_USE_ADMA) { in sdhci_dumpregs()
102 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_dumpregs()
114 if (host->ops->dump_vendor_regs) in sdhci_dumpregs()
115 host->ops->dump_vendor_regs(host); in sdhci_dumpregs()
145 host->v4_mode = true; in sdhci_enable_v4_mode()
152 return cmd->data || cmd->flags & MMC_RSP_BUSY; in sdhci_data_line_cmd()
159 if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) || in sdhci_set_card_detection()
160 !mmc_card_is_removable(host->mmc) || mmc_can_gpio_cd(host->mmc)) in sdhci_set_card_detection()
167 host->ier |= present ? SDHCI_INT_CARD_REMOVE : in sdhci_set_card_detection()
170 host->ier &= ~(SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT); in sdhci_set_card_detection()
173 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_card_detection()
174 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_card_detection()
189 if (host->bus_on) in sdhci_runtime_pm_bus_on()
191 host->bus_on = true; in sdhci_runtime_pm_bus_on()
192 pm_runtime_get_noresume(host->mmc->parent); in sdhci_runtime_pm_bus_on()
197 if (!host->bus_on) in sdhci_runtime_pm_bus_off()
199 host->bus_on = false; in sdhci_runtime_pm_bus_off()
200 pm_runtime_put_noidle(host->mmc->parent); in sdhci_runtime_pm_bus_off()
210 host->clock = 0; in sdhci_reset()
211 /* Reset-all turns off SD Bus Power */ in sdhci_reset()
212 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_reset()
227 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()
248 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_do_reset()
249 if (host->ops->enable_dma) in sdhci_do_reset()
250 host->ops->enable_dma(host); in sdhci_do_reset()
254 host->preset_enabled = false; in sdhci_do_reset()
260 host->ier = SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT | in sdhci_set_default_irqs()
266 if (host->tuning_mode == SDHCI_TUNING_MODE_2 || in sdhci_set_default_irqs()
267 host->tuning_mode == SDHCI_TUNING_MODE_3) in sdhci_set_default_irqs()
268 host->ier |= SDHCI_INT_RETUNE; in sdhci_set_default_irqs()
270 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_default_irqs()
271 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_default_irqs()
279 if (host->version < SDHCI_SPEC_200) in sdhci_config_dma()
290 if (!(host->flags & SDHCI_REQ_USE_DMA)) in sdhci_config_dma()
294 if (host->flags & SDHCI_USE_ADMA) in sdhci_config_dma()
297 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_config_dma()
299 * If v4 mode, all supported DMA can be 64-bit addressing if in sdhci_config_dma()
300 * controller supports 64-bit system address, otherwise only in sdhci_config_dma()
301 * ADMA can support 64-bit addressing. in sdhci_config_dma()
303 if (host->v4_mode) { in sdhci_config_dma()
307 } else if (host->flags & SDHCI_USE_ADMA) { in sdhci_config_dma()
322 struct mmc_host *mmc = host->mmc; in sdhci_init()
330 if (host->v4_mode) in sdhci_init()
333 spin_lock_irqsave(&host->lock, flags); in sdhci_init()
335 spin_unlock_irqrestore(&host->lock, flags); in sdhci_init()
337 host->cqe_on = false; in sdhci_init()
341 host->clock = 0; in sdhci_init()
342 host->reinit_uhs = true; in sdhci_init()
343 mmc->ops->set_ios(mmc, &mmc->ios); in sdhci_init()
349 u32 cd = host->ier & (SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT); in sdhci_reinit()
360 if (cd != (host->ier & (SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT))) in sdhci_reinit()
361 mmc_detect_change(host->mmc, msecs_to_jiffies(200)); in sdhci_reinit()
368 if (host->quirks & SDHCI_QUIRK_NO_LED) in __sdhci_led_activate()
380 if (host->quirks & SDHCI_QUIRK_NO_LED) in __sdhci_led_deactivate()
395 spin_lock_irqsave(&host->lock, flags); in sdhci_led_control()
397 if (host->runtime_suspended) in sdhci_led_control()
405 spin_unlock_irqrestore(&host->lock, flags); in sdhci_led_control()
410 struct mmc_host *mmc = host->mmc; in sdhci_led_register()
412 if (host->quirks & SDHCI_QUIRK_NO_LED) in sdhci_led_register()
415 snprintf(host->led_name, sizeof(host->led_name), in sdhci_led_register()
418 host->led.name = host->led_name; in sdhci_led_register()
419 host->led.brightness = LED_OFF; in sdhci_led_register()
420 host->led.default_trigger = mmc_hostname(mmc); in sdhci_led_register()
421 host->led.brightness_set = sdhci_led_control; in sdhci_led_register()
423 return led_classdev_register(mmc_dev(mmc), &host->led); in sdhci_led_register()
428 if (host->quirks & SDHCI_QUIRK_NO_LED) in sdhci_led_unregister()
431 led_classdev_unregister(&host->led); in sdhci_led_unregister()
468 if (sdhci_data_line_cmd(mrq->cmd)) in sdhci_mod_timer()
469 mod_timer(&host->data_timer, timeout); in sdhci_mod_timer()
471 mod_timer(&host->timer, timeout); in sdhci_mod_timer()
476 if (sdhci_data_line_cmd(mrq->cmd)) in sdhci_del_timer()
477 del_timer(&host->data_timer); in sdhci_del_timer()
479 del_timer(&host->timer); in sdhci_del_timer()
484 return host->cmd || host->data_cmd; in sdhci_has_requests()
502 blksize = host->data->blksz; in sdhci_read_block_pio()
508 BUG_ON(!sg_miter_next(&host->sg_miter)); in sdhci_read_block_pio()
510 len = min(host->sg_miter.length, blksize); in sdhci_read_block_pio()
512 blksize -= len; in sdhci_read_block_pio()
513 host->sg_miter.consumed = len; in sdhci_read_block_pio()
515 buf = host->sg_miter.addr; in sdhci_read_block_pio()
527 chunk--; in sdhci_read_block_pio()
528 len--; in sdhci_read_block_pio()
532 sg_miter_stop(&host->sg_miter); in sdhci_read_block_pio()
546 blksize = host->data->blksz; in sdhci_write_block_pio()
553 BUG_ON(!sg_miter_next(&host->sg_miter)); in sdhci_write_block_pio()
555 len = min(host->sg_miter.length, blksize); in sdhci_write_block_pio()
557 blksize -= len; in sdhci_write_block_pio()
558 host->sg_miter.consumed = len; in sdhci_write_block_pio()
560 buf = host->sg_miter.addr; in sdhci_write_block_pio()
567 len--; in sdhci_write_block_pio()
577 sg_miter_stop(&host->sg_miter); in sdhci_write_block_pio()
586 if (host->blocks == 0) in sdhci_transfer_pio()
589 if (host->data->flags & MMC_DATA_READ) in sdhci_transfer_pio()
599 if ((host->quirks & SDHCI_QUIRK_BROKEN_SMALL_PIO) && in sdhci_transfer_pio()
600 (host->data->blocks == 1)) in sdhci_transfer_pio()
604 if (host->quirks & SDHCI_QUIRK_PIO_NEEDS_DELAY) in sdhci_transfer_pio()
607 if (host->data->flags & MMC_DATA_READ) in sdhci_transfer_pio()
612 host->blocks--; in sdhci_transfer_pio()
613 if (host->blocks == 0) in sdhci_transfer_pio()
629 if (data->host_cookie == COOKIE_PRE_MAPPED) in sdhci_pre_dma_transfer()
630 return data->sg_count; in sdhci_pre_dma_transfer()
633 if (host->bounce_buffer) { in sdhci_pre_dma_transfer()
634 unsigned int length = data->blksz * data->blocks; in sdhci_pre_dma_transfer()
636 if (length > host->bounce_buffer_size) { in sdhci_pre_dma_transfer()
638 mmc_hostname(host->mmc), length, in sdhci_pre_dma_transfer()
639 host->bounce_buffer_size); in sdhci_pre_dma_transfer()
640 return -EIO; in sdhci_pre_dma_transfer()
644 if (host->ops->copy_to_bounce_buffer) { in sdhci_pre_dma_transfer()
645 host->ops->copy_to_bounce_buffer(host, in sdhci_pre_dma_transfer()
648 sg_copy_to_buffer(data->sg, data->sg_len, in sdhci_pre_dma_transfer()
649 host->bounce_buffer, length); in sdhci_pre_dma_transfer()
653 dma_sync_single_for_device(host->mmc->parent, in sdhci_pre_dma_transfer()
654 host->bounce_addr, in sdhci_pre_dma_transfer()
655 host->bounce_buffer_size, in sdhci_pre_dma_transfer()
661 sg_count = dma_map_sg(mmc_dev(host->mmc), in sdhci_pre_dma_transfer()
662 data->sg, data->sg_len, in sdhci_pre_dma_transfer()
667 return -ENOSPC; in sdhci_pre_dma_transfer()
669 data->sg_count = sg_count; in sdhci_pre_dma_transfer()
670 data->host_cookie = cookie; in sdhci_pre_dma_transfer()
678 return kmap_atomic(sg_page(sg)) + sg->offset; in sdhci_kmap_atomic()
692 /* 32-bit and 64-bit descriptors have these members in same position */ in sdhci_adma_write_desc()
693 dma_desc->cmd = cpu_to_le16(cmd); in sdhci_adma_write_desc()
694 dma_desc->len = cpu_to_le16(len); in sdhci_adma_write_desc()
695 dma_desc->addr_lo = cpu_to_le32(lower_32_bits(addr)); in sdhci_adma_write_desc()
697 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_adma_write_desc()
698 dma_desc->addr_hi = cpu_to_le32(upper_32_bits(addr)); in sdhci_adma_write_desc()
700 *desc += host->desc_sz; in sdhci_adma_write_desc()
708 if (host->ops->adma_write_desc) in __sdhci_adma_write_desc()
709 host->ops->adma_write_desc(host, desc, addr, len, cmd); in __sdhci_adma_write_desc()
718 /* 32-bit and 64-bit descriptors have 'cmd' in same position */ in sdhci_adma_mark_end()
719 dma_desc->cmd |= cpu_to_le16(ADMA2_END); in sdhci_adma_mark_end()
737 host->sg_count = sg_count; in sdhci_adma_table_pre()
739 desc = host->adma_table; in sdhci_adma_table_pre()
740 align = host->align_buffer; in sdhci_adma_table_pre()
742 align_addr = host->align_addr; in sdhci_adma_table_pre()
744 for_each_sg(data->sg, sg, host->sg_count, i) { in sdhci_adma_table_pre()
750 * be 32-bit aligned. If they aren't, then we use a bounce in sdhci_adma_table_pre()
754 offset = (SDHCI_ADMA2_ALIGN - (addr & SDHCI_ADMA2_MASK)) & in sdhci_adma_table_pre()
757 if (data->flags & MMC_DATA_WRITE) { in sdhci_adma_table_pre()
773 len -= offset; in sdhci_adma_table_pre()
782 while (len > host->max_adma) { in sdhci_adma_table_pre()
787 len -= n; in sdhci_adma_table_pre()
799 WARN_ON((desc - host->adma_table) >= host->adma_table_sz); in sdhci_adma_table_pre()
802 if (host->quirks & SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC) { in sdhci_adma_table_pre()
804 if (desc != host->adma_table) { in sdhci_adma_table_pre()
805 desc -= host->desc_sz; in sdhci_adma_table_pre()
809 /* Add a terminating entry - nop, end, valid */ in sdhci_adma_table_pre()
823 if (data->flags & MMC_DATA_READ) { in sdhci_adma_table_post()
827 for_each_sg(data->sg, sg, host->sg_count, i) in sdhci_adma_table_post()
834 dma_sync_sg_for_cpu(mmc_dev(host->mmc), data->sg, in sdhci_adma_table_post()
835 data->sg_len, DMA_FROM_DEVICE); in sdhci_adma_table_post()
837 align = host->align_buffer; in sdhci_adma_table_post()
839 for_each_sg(data->sg, sg, host->sg_count, i) { in sdhci_adma_table_post()
841 size = SDHCI_ADMA2_ALIGN - in sdhci_adma_table_post()
858 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_set_adma_addr()
864 if (host->bounce_buffer) in sdhci_sdma_address()
865 return host->bounce_addr; in sdhci_sdma_address()
867 return sg_dma_address(host->data->sg); in sdhci_sdma_address()
872 if (host->v4_mode) in sdhci_set_sdma_addr()
886 target_timeout = cmd->busy_timeout * 1000; in sdhci_target_timeout()
888 target_timeout = DIV_ROUND_UP(data->timeout_ns, 1000); in sdhci_target_timeout()
889 if (host->clock && data->timeout_clks) { in sdhci_target_timeout()
893 * data->timeout_clks is in units of clock cycles. in sdhci_target_timeout()
894 * host->clock is in Hz. target_timeout is in us. in sdhci_target_timeout()
897 val = 1000000ULL * data->timeout_clks; in sdhci_target_timeout()
898 if (do_div(val, host->clock)) in sdhci_target_timeout()
910 struct mmc_data *data = cmd->data; in sdhci_calc_sw_timeout()
911 struct mmc_host *mmc = host->mmc; in sdhci_calc_sw_timeout()
912 struct mmc_ios *ios = &mmc->ios; in sdhci_calc_sw_timeout()
913 unsigned char bus_width = 1 << ios->bus_width; in sdhci_calc_sw_timeout()
923 blksz = data->blksz; in sdhci_calc_sw_timeout()
924 freq = host->mmc->actual_clock ? : host->clock; in sdhci_calc_sw_timeout()
930 host->data_timeout = data->blocks * target_timeout + in sdhci_calc_sw_timeout()
933 host->data_timeout = target_timeout; in sdhci_calc_sw_timeout()
936 if (host->data_timeout) in sdhci_calc_sw_timeout()
937 host->data_timeout += MMC_CMD_TRANSFER_TIME; in sdhci_calc_sw_timeout()
952 * longer to time out, but that's much better than having a too-short in sdhci_calc_timeout()
955 if (host->quirks & SDHCI_QUIRK_BROKEN_TIMEOUT_VAL) in sdhci_calc_timeout()
962 data = cmd->data; in sdhci_calc_timeout()
964 if (!data && !cmd->busy_timeout) in sdhci_calc_timeout()
976 * (2) host->timeout_clk < 2^16 in sdhci_calc_timeout()
981 current_timeout = (1 << 13) * 1000 / host->timeout_clk; in sdhci_calc_timeout()
990 if (!(host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT)) in sdhci_calc_timeout()
992 count, cmd->opcode); in sdhci_calc_timeout()
1006 if (host->flags & SDHCI_REQ_USE_DMA) in sdhci_set_transfer_irqs()
1007 host->ier = (host->ier & ~pio_irqs) | dma_irqs; in sdhci_set_transfer_irqs()
1009 host->ier = (host->ier & ~dma_irqs) | pio_irqs; in sdhci_set_transfer_irqs()
1011 if (host->flags & (SDHCI_AUTO_CMD23 | SDHCI_AUTO_CMD12)) in sdhci_set_transfer_irqs()
1012 host->ier |= SDHCI_INT_AUTO_CMD_ERR; in sdhci_set_transfer_irqs()
1014 host->ier &= ~SDHCI_INT_AUTO_CMD_ERR; in sdhci_set_transfer_irqs()
1016 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_transfer_irqs()
1017 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_transfer_irqs()
1023 host->ier |= SDHCI_INT_DATA_TIMEOUT; in sdhci_set_data_timeout_irq()
1025 host->ier &= ~SDHCI_INT_DATA_TIMEOUT; in sdhci_set_data_timeout_irq()
1026 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_data_timeout_irq()
1027 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_data_timeout_irq()
1037 host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT) { in __sdhci_set_timeout()
1040 } else if (!(host->ier & SDHCI_INT_DATA_TIMEOUT)) { in __sdhci_set_timeout()
1050 if (host->ops->set_timeout) in sdhci_set_timeout()
1051 host->ops->set_timeout(host, cmd); in sdhci_set_timeout()
1059 WARN_ON(host->data); in sdhci_initialize_data()
1062 BUG_ON(data->blksz * data->blocks > 524288); in sdhci_initialize_data()
1063 BUG_ON(data->blksz > host->mmc->max_blk_size); in sdhci_initialize_data()
1064 BUG_ON(data->blocks > 65535); in sdhci_initialize_data()
1066 host->data = data; in sdhci_initialize_data()
1067 host->data_early = 0; in sdhci_initialize_data()
1068 host->data->bytes_xfered = 0; in sdhci_initialize_data()
1076 SDHCI_MAKE_BLKSZ(host->sdma_boundary, data->blksz), in sdhci_set_block_info()
1079 * For Version 4.10 onwards, if v4 mode is enabled, 32-bit Block Count in sdhci_set_block_info()
1080 * can be supported, in that case 16-bit block count register must be 0. in sdhci_set_block_info()
1082 if (host->version >= SDHCI_SPEC_410 && host->v4_mode && in sdhci_set_block_info()
1083 (host->quirks2 & SDHCI_QUIRK2_USE_32BIT_BLK_CNT)) { in sdhci_set_block_info()
1086 sdhci_writew(host, data->blocks, SDHCI_32BIT_BLK_CNT); in sdhci_set_block_info()
1088 sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT); in sdhci_set_block_info()
1094 struct mmc_data *data = cmd->data; in sdhci_prepare_data()
1098 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_prepare_data()
1103 host->flags |= SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1114 if (host->flags & SDHCI_USE_ADMA) { in sdhci_prepare_data()
1115 if (host->quirks & SDHCI_QUIRK_32BIT_ADMA_SIZE) { in sdhci_prepare_data()
1125 if (host->quirks & SDHCI_QUIRK_32BIT_DMA_SIZE) in sdhci_prepare_data()
1127 if (host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) in sdhci_prepare_data()
1132 for_each_sg(data->sg, sg, data->sg_len, i) { in sdhci_prepare_data()
1133 if (sg->length & length_mask) { in sdhci_prepare_data()
1135 sg->length); in sdhci_prepare_data()
1136 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1139 if (sg->offset & offset_mask) { in sdhci_prepare_data()
1141 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1150 if (host->flags & SDHCI_REQ_USE_DMA) { in sdhci_prepare_data()
1159 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1160 } else if (host->flags & SDHCI_USE_ADMA) { in sdhci_prepare_data()
1162 sdhci_set_adma_addr(host, host->adma_addr); in sdhci_prepare_data()
1169 if (!(host->flags & SDHCI_REQ_USE_DMA)) { in sdhci_prepare_data()
1173 if (host->data->flags & MMC_DATA_READ) in sdhci_prepare_data()
1177 sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); in sdhci_prepare_data()
1178 host->blocks = data->blocks; in sdhci_prepare_data()
1191 struct mmc_host *mmc = host->mmc; in sdhci_external_dma_init()
1193 host->tx_chan = dma_request_chan(mmc->parent, "tx"); in sdhci_external_dma_init()
1194 if (IS_ERR(host->tx_chan)) { in sdhci_external_dma_init()
1195 ret = PTR_ERR(host->tx_chan); in sdhci_external_dma_init()
1196 if (ret != -EPROBE_DEFER) in sdhci_external_dma_init()
1198 host->tx_chan = NULL; in sdhci_external_dma_init()
1202 host->rx_chan = dma_request_chan(mmc->parent, "rx"); in sdhci_external_dma_init()
1203 if (IS_ERR(host->rx_chan)) { in sdhci_external_dma_init()
1204 if (host->tx_chan) { in sdhci_external_dma_init()
1205 dma_release_channel(host->tx_chan); in sdhci_external_dma_init()
1206 host->tx_chan = NULL; in sdhci_external_dma_init()
1209 ret = PTR_ERR(host->rx_chan); in sdhci_external_dma_init()
1210 if (ret != -EPROBE_DEFER) in sdhci_external_dma_init()
1212 host->rx_chan = NULL; in sdhci_external_dma_init()
1221 return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan; in sdhci_external_dma_channel()
1228 enum dma_transfer_direction dir; in sdhci_external_dma_setup() local
1230 struct mmc_data *data = cmd->data; in sdhci_external_dma_setup()
1236 if (!host->mapbase) in sdhci_external_dma_setup()
1237 return -EINVAL; in sdhci_external_dma_setup()
1240 cfg.src_addr = host->mapbase + SDHCI_BUFFER; in sdhci_external_dma_setup()
1241 cfg.dst_addr = host->mapbase + SDHCI_BUFFER; in sdhci_external_dma_setup()
1244 cfg.src_maxburst = data->blksz / 4; in sdhci_external_dma_setup()
1245 cfg.dst_maxburst = data->blksz / 4; in sdhci_external_dma_setup()
1248 for (i = 0; i < data->sg_len; i++) { in sdhci_external_dma_setup()
1249 if ((data->sg + i)->length % data->blksz) in sdhci_external_dma_setup()
1250 return -EINVAL; in sdhci_external_dma_setup()
1261 return -EINVAL; in sdhci_external_dma_setup()
1263 dir = data->flags & MMC_DATA_WRITE ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM; in sdhci_external_dma_setup()
1264 desc = dmaengine_prep_slave_sg(chan, data->sg, data->sg_len, dir, in sdhci_external_dma_setup()
1267 return -EINVAL; in sdhci_external_dma_setup()
1269 desc->callback = NULL; in sdhci_external_dma_setup()
1270 desc->callback_param = NULL; in sdhci_external_dma_setup()
1281 if (host->tx_chan) { in sdhci_external_dma_release()
1282 dma_release_channel(host->tx_chan); in sdhci_external_dma_release()
1283 host->tx_chan = NULL; in sdhci_external_dma_release()
1286 if (host->rx_chan) { in sdhci_external_dma_release()
1287 dma_release_channel(host->rx_chan); in sdhci_external_dma_release()
1288 host->rx_chan = NULL; in sdhci_external_dma_release()
1297 struct mmc_data *data = cmd->data; in __sdhci_external_dma_prepare_data()
1301 host->flags |= SDHCI_REQ_USE_DMA; in __sdhci_external_dma_prepare_data()
1315 mmc_hostname(host->mmc)); in sdhci_external_dma_prepare_data()
1325 if (!cmd->data) in sdhci_external_dma_pre_transfer()
1328 chan = sdhci_external_dma_channel(host, cmd->data); in sdhci_external_dma_pre_transfer()
1337 return -EOPNOTSUPP; in sdhci_external_dma_init()
1366 host->use_external_dma = en; in sdhci_switch_external_dma()
1373 return !mrq->sbc && (host->flags & SDHCI_AUTO_CMD12) && in sdhci_auto_cmd12()
1374 !mrq->cap_cmd_during_tfr; in sdhci_auto_cmd12()
1380 return mrq->sbc && (host->flags & SDHCI_AUTO_CMD23); in sdhci_auto_cmd23()
1386 return mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23); in sdhci_manual_cmd23()
1393 bool use_cmd12 = sdhci_auto_cmd12(host, cmd->mrq) && in sdhci_auto_cmd_select()
1394 (cmd->opcode != SD_IO_RW_EXTENDED); in sdhci_auto_cmd_select()
1395 bool use_cmd23 = sdhci_auto_cmd23(host, cmd->mrq); in sdhci_auto_cmd_select()
1402 * here because some controllers (e.g sdhci-of-dwmshc) expect it. in sdhci_auto_cmd_select()
1404 if (host->version >= SDHCI_SPEC_410 && host->v4_mode && in sdhci_auto_cmd_select()
1420 * on successful completion (so no Auto-CMD12). in sdhci_auto_cmd_select()
1432 struct mmc_data *data = cmd->data; in sdhci_set_transfer_mode()
1435 if (host->quirks2 & in sdhci_set_transfer_mode()
1438 if (cmd->opcode != MMC_SEND_TUNING_BLOCK_HS200) in sdhci_set_transfer_mode()
1449 WARN_ON(!host->data); in sdhci_set_transfer_mode()
1451 if (!(host->quirks2 & SDHCI_QUIRK2_SUPPORT_SINGLE)) in sdhci_set_transfer_mode()
1454 if (mmc_op_multi(cmd->opcode) || data->blocks > 1) { in sdhci_set_transfer_mode()
1457 if (sdhci_auto_cmd23(host, cmd->mrq)) in sdhci_set_transfer_mode()
1458 sdhci_writel(host, cmd->mrq->sbc->arg, SDHCI_ARGUMENT2); in sdhci_set_transfer_mode()
1461 if (data->flags & MMC_DATA_READ) in sdhci_set_transfer_mode()
1463 if (host->flags & SDHCI_REQ_USE_DMA) in sdhci_set_transfer_mode()
1471 return (!(host->flags & SDHCI_DEVICE_DEAD) && in sdhci_needs_reset()
1472 ((mrq->cmd && mrq->cmd->error) || in sdhci_needs_reset()
1473 (mrq->sbc && mrq->sbc->error) || in sdhci_needs_reset()
1474 (mrq->data && mrq->data->stop && mrq->data->stop->error) || in sdhci_needs_reset()
1475 (host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST))); in sdhci_needs_reset()
1483 if (host->mrqs_done[i] == mrq) { in sdhci_set_mrq_done()
1490 if (!host->mrqs_done[i]) { in sdhci_set_mrq_done()
1491 host->mrqs_done[i] = mrq; in sdhci_set_mrq_done()
1501 if (host->cmd && host->cmd->mrq == mrq) in __sdhci_finish_mrq()
1502 host->cmd = NULL; in __sdhci_finish_mrq()
1504 if (host->data_cmd && host->data_cmd->mrq == mrq) in __sdhci_finish_mrq()
1505 host->data_cmd = NULL; in __sdhci_finish_mrq()
1507 if (host->deferred_cmd && host->deferred_cmd->mrq == mrq) in __sdhci_finish_mrq()
1508 host->deferred_cmd = NULL; in __sdhci_finish_mrq()
1510 if (host->data && host->data->mrq == mrq) in __sdhci_finish_mrq()
1511 host->data = NULL; in __sdhci_finish_mrq()
1514 host->pending_reset = true; in __sdhci_finish_mrq()
1528 queue_work(host->complete_wq, &host->complete_work); in sdhci_finish_mrq()
1533 struct mmc_command *data_cmd = host->data_cmd; in __sdhci_finish_data()
1534 struct mmc_data *data = host->data; in __sdhci_finish_data()
1536 host->data = NULL; in __sdhci_finish_data()
1537 host->data_cmd = NULL; in __sdhci_finish_data()
1543 if (data->error) { in __sdhci_finish_data()
1544 if (!host->cmd || host->cmd == data_cmd) in __sdhci_finish_data()
1549 if ((host->flags & (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA)) == in __sdhci_finish_data()
1560 if (data->error) in __sdhci_finish_data()
1561 data->bytes_xfered = 0; in __sdhci_finish_data()
1563 data->bytes_xfered = data->blksz * data->blocks; in __sdhci_finish_data()
1566 * Need to send CMD12 if - in __sdhci_finish_data()
1567 * a) open-ended multiblock transfer not using auto CMD12 (no CMD23) in __sdhci_finish_data()
1570 if (data->stop && in __sdhci_finish_data()
1571 ((!data->mrq->sbc && !sdhci_auto_cmd12(host, data->mrq)) || in __sdhci_finish_data()
1572 data->error)) { in __sdhci_finish_data()
1578 if (data->mrq->cap_cmd_during_tfr) { in __sdhci_finish_data()
1579 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1582 host->cmd = NULL; in __sdhci_finish_data()
1583 if (!sdhci_send_command(host, data->stop)) { in __sdhci_finish_data()
1589 data->stop->error = -EIO; in __sdhci_finish_data()
1590 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1592 WARN_ON(host->deferred_cmd); in __sdhci_finish_data()
1593 host->deferred_cmd = data->stop; in __sdhci_finish_data()
1598 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1613 WARN_ON(host->cmd); in sdhci_send_command()
1616 cmd->error = 0; in sdhci_send_command()
1618 if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) && in sdhci_send_command()
1619 cmd->opcode == MMC_STOP_TRANSMISSION) in sdhci_send_command()
1620 cmd->flags |= MMC_RSP_BUSY; in sdhci_send_command()
1628 if (cmd->mrq->data && (cmd == cmd->mrq->data->stop)) in sdhci_send_command()
1634 host->cmd = cmd; in sdhci_send_command()
1635 host->data_timeout = 0; in sdhci_send_command()
1637 WARN_ON(host->data_cmd); in sdhci_send_command()
1638 host->data_cmd = cmd; in sdhci_send_command()
1642 if (cmd->data) { in sdhci_send_command()
1643 if (host->use_external_dma) in sdhci_send_command()
1649 sdhci_writel(host, cmd->arg, SDHCI_ARGUMENT); in sdhci_send_command()
1653 if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) { in sdhci_send_command()
1656 * This does not happen in practice because 136-bit response in sdhci_send_command()
1660 cmd->flags &= ~MMC_RSP_BUSY; in sdhci_send_command()
1663 if (!(cmd->flags & MMC_RSP_PRESENT)) in sdhci_send_command()
1665 else if (cmd->flags & MMC_RSP_136) in sdhci_send_command()
1667 else if (cmd->flags & MMC_RSP_BUSY) in sdhci_send_command()
1672 if (cmd->flags & MMC_RSP_CRC) in sdhci_send_command()
1674 if (cmd->flags & MMC_RSP_OPCODE) in sdhci_send_command()
1678 if (cmd->data || cmd->opcode == MMC_SEND_TUNING_BLOCK || in sdhci_send_command()
1679 cmd->opcode == MMC_SEND_TUNING_BLOCK_HS200) in sdhci_send_command()
1683 if (host->data_timeout) in sdhci_send_command()
1684 timeout += nsecs_to_jiffies(host->data_timeout); in sdhci_send_command()
1685 else if (!cmd->data && cmd->busy_timeout > 9000) in sdhci_send_command()
1686 timeout += DIV_ROUND_UP(cmd->busy_timeout, 1000) * HZ + HZ; in sdhci_send_command()
1689 sdhci_mod_timer(host, cmd->mrq, timeout); in sdhci_send_command()
1691 if (host->use_external_dma) in sdhci_send_command()
1694 sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND); in sdhci_send_command()
1702 if (!present || host->flags & SDHCI_DEVICE_DEAD) { in sdhci_present_error()
1703 cmd->error = -ENOMEDIUM; in sdhci_present_error()
1713 __releases(host->lock) in sdhci_send_command_retry()
1714 __acquires(host->lock) in sdhci_send_command_retry()
1716 struct mmc_command *deferred_cmd = host->deferred_cmd; in sdhci_send_command_retry()
1721 if (!timeout--) { in sdhci_send_command_retry()
1723 mmc_hostname(host->mmc)); in sdhci_send_command_retry()
1725 cmd->error = -EIO; in sdhci_send_command_retry()
1729 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_command_retry()
1733 present = host->mmc->ops->get_cd(host->mmc); in sdhci_send_command_retry()
1735 spin_lock_irqsave(&host->lock, flags); in sdhci_send_command_retry()
1738 if (cmd == deferred_cmd && cmd != host->deferred_cmd) in sdhci_send_command_retry()
1745 if (cmd == host->deferred_cmd) in sdhci_send_command_retry()
1746 host->deferred_cmd = NULL; in sdhci_send_command_retry()
1756 reg = SDHCI_RESPONSE + (3 - i) * 4; in sdhci_read_rsp_136()
1757 cmd->resp[i] = sdhci_readl(host, reg); in sdhci_read_rsp_136()
1760 if (host->quirks2 & SDHCI_QUIRK2_RSP_136_HAS_CRC) in sdhci_read_rsp_136()
1765 cmd->resp[i] <<= 8; in sdhci_read_rsp_136()
1767 cmd->resp[i] |= cmd->resp[i + 1] >> 24; in sdhci_read_rsp_136()
1773 struct mmc_command *cmd = host->cmd; in sdhci_finish_command()
1775 host->cmd = NULL; in sdhci_finish_command()
1777 if (cmd->flags & MMC_RSP_PRESENT) { in sdhci_finish_command()
1778 if (cmd->flags & MMC_RSP_136) { in sdhci_finish_command()
1781 cmd->resp[0] = sdhci_readl(host, SDHCI_RESPONSE); in sdhci_finish_command()
1785 if (cmd->mrq->cap_cmd_during_tfr && cmd == cmd->mrq->cmd) in sdhci_finish_command()
1786 mmc_command_done(host->mmc, cmd->mrq); in sdhci_finish_command()
1791 * The busy signal uses DAT0 so this is similar to waiting in sdhci_finish_command()
1798 if (cmd->flags & MMC_RSP_BUSY) { in sdhci_finish_command()
1799 if (cmd->data) { in sdhci_finish_command()
1801 } else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ) && in sdhci_finish_command()
1802 cmd == host->data_cmd) { in sdhci_finish_command()
1809 if (cmd == cmd->mrq->sbc) { in sdhci_finish_command()
1810 if (!sdhci_send_command(host, cmd->mrq->cmd)) { in sdhci_finish_command()
1811 WARN_ON(host->deferred_cmd); in sdhci_finish_command()
1812 host->deferred_cmd = cmd->mrq->cmd; in sdhci_finish_command()
1817 if (host->data && host->data_early) in sdhci_finish_command()
1820 if (!cmd->data) in sdhci_finish_command()
1821 __sdhci_finish_mrq(host, cmd->mrq); in sdhci_finish_command()
1829 switch (host->timing) { in sdhci_get_preset_value()
1855 pr_warn("%s: Invalid UHS-I mode selected\n", in sdhci_get_preset_value()
1856 mmc_hostname(host->mmc)); in sdhci_get_preset_value()
1871 if (host->version >= SDHCI_SPEC_300) { in sdhci_calc_clk()
1872 if (host->preset_enabled) { in sdhci_calc_clk()
1878 if (host->clk_mul && in sdhci_calc_clk()
1882 clk_mul = host->clk_mul; in sdhci_calc_clk()
1893 if (host->clk_mul) { in sdhci_calc_clk()
1895 if ((host->max_clk * host->clk_mul / div) in sdhci_calc_clk()
1899 if ((host->max_clk * host->clk_mul / div) <= clock) { in sdhci_calc_clk()
1906 clk_mul = host->clk_mul; in sdhci_calc_clk()
1907 div--; in sdhci_calc_clk()
1917 if (!host->clk_mul || switch_base_clk) { in sdhci_calc_clk()
1919 if (host->max_clk <= clock) in sdhci_calc_clk()
1924 if ((host->max_clk / div) <= clock) in sdhci_calc_clk()
1930 if ((host->quirks2 & SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN) in sdhci_calc_clk()
1931 && !div && host->max_clk <= 25000000) in sdhci_calc_clk()
1937 if ((host->max_clk / div) <= clock) in sdhci_calc_clk()
1946 *actual_clock = (host->max_clk * clk_mul) / real_div; in sdhci_calc_clk()
1972 mmc_hostname(host->mmc)); in sdhci_enable_clk()
1979 if (host->version >= SDHCI_SPEC_410 && host->v4_mode) { in sdhci_enable_clk()
1994 mmc_hostname(host->mmc)); in sdhci_enable_clk()
2011 host->mmc->actual_clock = 0; in sdhci_set_clock()
2018 clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock); in sdhci_set_clock()
2026 struct mmc_host *mmc = host->mmc; in sdhci_set_power_reg()
2028 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd); in sdhci_set_power_reg()
2069 mmc_hostname(host->mmc), vdd); in sdhci_set_power_noreg()
2074 if (host->pwr == pwr) in sdhci_set_power_noreg()
2077 host->pwr = pwr; in sdhci_set_power_noreg()
2081 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_set_power_noreg()
2088 if (!(host->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE)) in sdhci_set_power_noreg()
2096 if (host->quirks & SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER) in sdhci_set_power_noreg()
2103 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_set_power_noreg()
2110 if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER) in sdhci_set_power_noreg()
2119 if (IS_ERR(host->mmc->supply.vmmc)) in sdhci_set_power()
2136 if (!IS_ERR(host->mmc->supply.vmmc)) { in sdhci_set_power_and_bus_voltage()
2137 struct mmc_host *mmc = host->mmc; in sdhci_set_power_and_bus_voltage()
2139 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd); in sdhci_set_power_and_bus_voltage()
2159 present = mmc->ops->get_cd(mmc); in sdhci_request()
2161 spin_lock_irqsave(&host->lock, flags); in sdhci_request()
2165 if (sdhci_present_error(host, mrq->cmd, present)) in sdhci_request()
2168 cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; in sdhci_request()
2173 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request()
2179 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request()
2190 spin_lock_irqsave(&host->lock, flags); in sdhci_request_atomic()
2192 if (sdhci_present_error(host, mrq->cmd, true)) { in sdhci_request_atomic()
2197 cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; in sdhci_request_atomic()
2203 * again in non-atomic context. So we should not finish this request in sdhci_request_atomic()
2207 ret = -EBUSY; in sdhci_request_atomic()
2212 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_atomic()
2226 if (host->mmc->caps & MMC_CAP_8_BIT_DATA) in sdhci_set_bus_width()
2257 ctrl_2 |= SDHCI_CTRL_HS400; /* Non-standard */ in sdhci_set_uhs_signaling()
2278 return !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN) && in sdhci_preset_needed()
2289 return !host->preset_enabled && in sdhci_presetable_values_change()
2290 (sdhci_preset_needed(host, ios->timing) || host->drv_type != ios->drv_type); in sdhci_presetable_values_change()
2296 bool reinit_uhs = host->reinit_uhs; in sdhci_set_ios()
2300 host->reinit_uhs = false; in sdhci_set_ios()
2302 if (ios->power_mode == MMC_POWER_UNDEFINED) in sdhci_set_ios()
2305 if (host->flags & SDHCI_DEVICE_DEAD) { in sdhci_set_ios()
2306 if (!IS_ERR(mmc->supply.vmmc) && in sdhci_set_ios()
2307 ios->power_mode == MMC_POWER_OFF) in sdhci_set_ios()
2308 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0); in sdhci_set_ios()
2316 if (ios->power_mode == MMC_POWER_OFF) { in sdhci_set_ios()
2321 if (host->version >= SDHCI_SPEC_300 && in sdhci_set_ios()
2322 (ios->power_mode == MMC_POWER_UP) && in sdhci_set_ios()
2323 !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) in sdhci_set_ios()
2326 if (!ios->clock || ios->clock != host->clock) { in sdhci_set_ios()
2327 turning_on_clk = ios->clock && !host->clock; in sdhci_set_ios()
2329 host->ops->set_clock(host, ios->clock); in sdhci_set_ios()
2330 host->clock = ios->clock; in sdhci_set_ios()
2332 if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK && in sdhci_set_ios()
2333 host->clock) { in sdhci_set_ios()
2334 host->timeout_clk = host->mmc->actual_clock ? in sdhci_set_ios()
2335 host->mmc->actual_clock / 1000 : in sdhci_set_ios()
2336 host->clock / 1000; in sdhci_set_ios()
2337 host->mmc->max_busy_timeout = in sdhci_set_ios()
2338 host->ops->get_max_timeout_count ? in sdhci_set_ios()
2339 host->ops->get_max_timeout_count(host) : in sdhci_set_ios()
2341 host->mmc->max_busy_timeout /= host->timeout_clk; in sdhci_set_ios()
2345 if (host->ops->set_power) in sdhci_set_ios()
2346 host->ops->set_power(host, ios->power_mode, ios->vdd); in sdhci_set_ios()
2348 sdhci_set_power(host, ios->power_mode, ios->vdd); in sdhci_set_ios()
2350 if (host->ops->platform_send_init_74_clocks) in sdhci_set_ios()
2351 host->ops->platform_send_init_74_clocks(host, ios->power_mode); in sdhci_set_ios()
2353 host->ops->set_bus_width(host, ios->bus_width); in sdhci_set_ios()
2361 host->timing == ios->timing && in sdhci_set_ios()
2362 host->version >= SDHCI_SPEC_300 && in sdhci_set_ios()
2368 if (!(host->quirks & SDHCI_QUIRK_NO_HISPD_BIT)) { in sdhci_set_ios()
2369 if (ios->timing == MMC_TIMING_SD_HS || in sdhci_set_ios()
2370 ios->timing == MMC_TIMING_MMC_HS || in sdhci_set_ios()
2371 ios->timing == MMC_TIMING_MMC_HS400 || in sdhci_set_ios()
2372 ios->timing == MMC_TIMING_MMC_HS200 || in sdhci_set_ios()
2373 ios->timing == MMC_TIMING_MMC_DDR52 || in sdhci_set_ios()
2374 ios->timing == MMC_TIMING_UHS_SDR50 || in sdhci_set_ios()
2375 ios->timing == MMC_TIMING_UHS_SDR104 || in sdhci_set_ios()
2376 ios->timing == MMC_TIMING_UHS_DDR50 || in sdhci_set_ios()
2377 ios->timing == MMC_TIMING_UHS_SDR25) in sdhci_set_ios()
2383 if (host->version >= SDHCI_SPEC_300) { in sdhci_set_ios()
2386 if (!host->preset_enabled) { in sdhci_set_ios()
2394 if (ios->drv_type == MMC_SET_DRIVER_TYPE_A) in sdhci_set_ios()
2396 else if (ios->drv_type == MMC_SET_DRIVER_TYPE_B) in sdhci_set_ios()
2398 else if (ios->drv_type == MMC_SET_DRIVER_TYPE_C) in sdhci_set_ios()
2400 else if (ios->drv_type == MMC_SET_DRIVER_TYPE_D) in sdhci_set_ios()
2409 host->drv_type = ios->drv_type; in sdhci_set_ios()
2425 /* Re-enable SD Clock */ in sdhci_set_ios()
2426 host->ops->set_clock(host, host->clock); in sdhci_set_ios()
2434 host->ops->set_uhs_signaling(host, ios->timing); in sdhci_set_ios()
2435 host->timing = ios->timing; in sdhci_set_ios()
2437 if (sdhci_preset_needed(host, ios->timing)) { in sdhci_set_ios()
2442 ios->drv_type = FIELD_GET(SDHCI_PRESET_DRV_MASK, in sdhci_set_ios()
2444 host->drv_type = ios->drv_type; in sdhci_set_ios()
2447 /* Re-enable SD Clock */ in sdhci_set_ios()
2448 host->ops->set_clock(host, host->clock); in sdhci_set_ios()
2457 if (host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS) in sdhci_set_ios()
2467 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_get_cd()
2471 if (!mmc_card_is_removable(host->mmc)) in sdhci_get_cd()
2482 if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) in sdhci_get_cd()
2494 spin_lock_irqsave(&host->lock, flags); in sdhci_check_ro()
2496 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_check_ro()
2498 else if (host->ops->get_ro) in sdhci_check_ro()
2499 is_readonly = host->ops->get_ro(host); in sdhci_check_ro()
2500 else if (mmc_can_gpio_ro(host->mmc)) in sdhci_check_ro()
2501 is_readonly = mmc_gpio_get_ro(host->mmc); in sdhci_check_ro()
2506 spin_unlock_irqrestore(&host->lock, flags); in sdhci_check_ro()
2508 /* This quirk needs to be replaced by a callback-function later */ in sdhci_check_ro()
2509 return host->quirks & SDHCI_QUIRK_INVERTED_WRITE_PROTECT ? in sdhci_check_ro()
2520 if (!(host->quirks & SDHCI_QUIRK_UNSTABLE_RO_DETECT)) in sdhci_get_ro()
2538 if (host->ops && host->ops->hw_reset) in sdhci_hw_reset()
2539 host->ops->hw_reset(host); in sdhci_hw_reset()
2544 if (!(host->flags & SDHCI_DEVICE_DEAD)) { in sdhci_enable_sdio_irq_nolock()
2546 host->ier |= SDHCI_INT_CARD_INT; in sdhci_enable_sdio_irq_nolock()
2548 host->ier &= ~SDHCI_INT_CARD_INT; in sdhci_enable_sdio_irq_nolock()
2550 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_enable_sdio_irq_nolock()
2551 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_enable_sdio_irq_nolock()
2561 pm_runtime_get_noresume(host->mmc->parent); in sdhci_enable_sdio_irq()
2563 spin_lock_irqsave(&host->lock, flags); in sdhci_enable_sdio_irq()
2565 spin_unlock_irqrestore(&host->lock, flags); in sdhci_enable_sdio_irq()
2568 pm_runtime_put_noidle(host->mmc->parent); in sdhci_enable_sdio_irq()
2577 spin_lock_irqsave(&host->lock, flags); in sdhci_ack_sdio_irq()
2579 spin_unlock_irqrestore(&host->lock, flags); in sdhci_ack_sdio_irq()
2593 if (host->version < SDHCI_SPEC_300) in sdhci_start_signal_voltage_switch()
2598 switch (ios->signal_voltage) { in sdhci_start_signal_voltage_switch()
2600 if (!(host->flags & SDHCI_SIGNALING_330)) in sdhci_start_signal_voltage_switch()
2601 return -EINVAL; in sdhci_start_signal_voltage_switch()
2606 if (!IS_ERR(mmc->supply.vqmmc)) { in sdhci_start_signal_voltage_switch()
2611 return -EIO; in sdhci_start_signal_voltage_switch()
2625 return -EAGAIN; in sdhci_start_signal_voltage_switch()
2627 if (!(host->flags & SDHCI_SIGNALING_180)) in sdhci_start_signal_voltage_switch()
2628 return -EINVAL; in sdhci_start_signal_voltage_switch()
2629 if (!IS_ERR(mmc->supply.vqmmc)) { in sdhci_start_signal_voltage_switch()
2634 return -EIO; in sdhci_start_signal_voltage_switch()
2646 if (host->ops->voltage_switch) in sdhci_start_signal_voltage_switch()
2647 host->ops->voltage_switch(host); in sdhci_start_signal_voltage_switch()
2657 return -EAGAIN; in sdhci_start_signal_voltage_switch()
2659 if (!(host->flags & SDHCI_SIGNALING_120)) in sdhci_start_signal_voltage_switch()
2660 return -EINVAL; in sdhci_start_signal_voltage_switch()
2661 if (!IS_ERR(mmc->supply.vqmmc)) { in sdhci_start_signal_voltage_switch()
2666 return -EIO; in sdhci_start_signal_voltage_switch()
2693 spin_lock_irqsave(&host->lock, flags); in sdhci_prepare_hs400_tuning()
2694 host->flags |= SDHCI_HS400_TUNING; in sdhci_prepare_hs400_tuning()
2695 spin_unlock_irqrestore(&host->lock, flags); in sdhci_prepare_hs400_tuning()
2706 if (host->quirks2 & SDHCI_QUIRK2_TUNING_WORK_AROUND) in sdhci_start_tuning()
2727 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_end_tuning()
2728 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_end_tuning()
2752 mmc_abort_tuning(host->mmc, opcode); in sdhci_abort_tuning()
2759 * automatically) so mmc_send_tuning() will return -EIO. Also the tuning command
2765 struct mmc_host *mmc = host->mmc; in sdhci_send_tuning()
2769 u32 b = host->sdma_boundary; in sdhci_send_tuning()
2771 spin_lock_irqsave(&host->lock, flags); in sdhci_send_tuning()
2784 mmc->ios.bus_width == MMC_BUS_WIDTH_8) in sdhci_send_tuning()
2798 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_tuning()
2799 host->tuning_done = 0; in sdhci_send_tuning()
2803 host->cmd = NULL; in sdhci_send_tuning()
2807 host->tuning_done = 0; in sdhci_send_tuning()
2809 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_tuning()
2812 wait_event_timeout(host->buf_ready_int, (host->tuning_done == 1), in sdhci_send_tuning()
2826 for (i = 0; i < host->tuning_loop_count; i++) { in __sdhci_execute_tuning()
2831 if (!host->tuning_done) { in __sdhci_execute_tuning()
2833 mmc_hostname(host->mmc)); in __sdhci_execute_tuning()
2835 return -ETIMEDOUT; in __sdhci_execute_tuning()
2839 if (host->tuning_delay > 0) in __sdhci_execute_tuning()
2840 mdelay(host->tuning_delay); in __sdhci_execute_tuning()
2852 mmc_hostname(host->mmc)); in __sdhci_execute_tuning()
2854 return -EAGAIN; in __sdhci_execute_tuning()
2864 hs400_tuning = host->flags & SDHCI_HS400_TUNING; in sdhci_execute_tuning()
2866 if (host->tuning_mode == SDHCI_TUNING_MODE_1) in sdhci_execute_tuning()
2867 tuning_count = host->tuning_count; in sdhci_execute_tuning()
2876 switch (host->timing) { in sdhci_execute_tuning()
2879 err = -EINVAL; in sdhci_execute_tuning()
2884 * Periodic re-tuning for HS400 is not expected to be needed, so in sdhci_execute_tuning()
2896 if (host->flags & SDHCI_SDR50_NEEDS_TUNING) in sdhci_execute_tuning()
2904 if (host->ops->platform_execute_tuning) { in sdhci_execute_tuning()
2905 err = host->ops->platform_execute_tuning(host, opcode); in sdhci_execute_tuning()
2909 host->mmc->retune_period = tuning_count; in sdhci_execute_tuning()
2911 if (host->tuning_delay < 0) in sdhci_execute_tuning()
2912 host->tuning_delay = opcode == MMC_SEND_TUNING_BLOCK; in sdhci_execute_tuning()
2916 host->tuning_err = __sdhci_execute_tuning(host, opcode); in sdhci_execute_tuning()
2920 host->flags &= ~SDHCI_HS400_TUNING; in sdhci_execute_tuning()
2929 if (host->version < SDHCI_SPEC_300) in sdhci_enable_preset_value()
2936 if (host->preset_enabled != enable) { in sdhci_enable_preset_value()
2947 host->flags |= SDHCI_PV_ENABLED; in sdhci_enable_preset_value()
2949 host->flags &= ~SDHCI_PV_ENABLED; in sdhci_enable_preset_value()
2951 host->preset_enabled = enable; in sdhci_enable_preset_value()
2959 struct mmc_data *data = mrq->data; in sdhci_post_req()
2961 if (data->host_cookie != COOKIE_UNMAPPED) in sdhci_post_req()
2962 dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, in sdhci_post_req()
2965 data->host_cookie = COOKIE_UNMAPPED; in sdhci_post_req()
2972 mrq->data->host_cookie = COOKIE_UNMAPPED; in sdhci_pre_req()
2975 * No pre-mapping in the pre hook if we're using the bounce buffer, in sdhci_pre_req()
2979 if (host->flags & SDHCI_REQ_USE_DMA && !host->bounce_buffer) in sdhci_pre_req()
2980 sdhci_pre_dma_transfer(host, mrq->data, COOKIE_PRE_MAPPED); in sdhci_pre_req()
2985 if (host->data_cmd) { in sdhci_error_out_mrqs()
2986 host->data_cmd->error = err; in sdhci_error_out_mrqs()
2987 sdhci_finish_mrq(host, host->data_cmd->mrq); in sdhci_error_out_mrqs()
2990 if (host->cmd) { in sdhci_error_out_mrqs()
2991 host->cmd->error = err; in sdhci_error_out_mrqs()
2992 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_error_out_mrqs()
3003 if (host->ops->card_event) in sdhci_card_event()
3004 host->ops->card_event(host); in sdhci_card_event()
3006 present = mmc->ops->get_cd(mmc); in sdhci_card_event()
3008 spin_lock_irqsave(&host->lock, flags); in sdhci_card_event()
3013 mmc_hostname(host->mmc)); in sdhci_card_event()
3015 mmc_hostname(host->mmc)); in sdhci_card_event()
3020 sdhci_error_out_mrqs(host, -ENOMEDIUM); in sdhci_card_event()
3023 spin_unlock_irqrestore(&host->lock, flags); in sdhci_card_event()
3055 spin_lock_irqsave(&host->lock, flags); in sdhci_request_done()
3058 mrq = host->mrqs_done[i]; in sdhci_request_done()
3064 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3076 * also be in mrqs_done, otherwise host->cmd and host->data_cmd in sdhci_request_done()
3079 if (host->cmd || host->data_cmd) { in sdhci_request_done()
3080 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3085 if (host->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) in sdhci_request_done()
3087 host->ops->set_clock(host, host->clock); in sdhci_request_done()
3096 host->pending_reset = false; in sdhci_request_done()
3104 if (host->flags & SDHCI_REQ_USE_DMA) { in sdhci_request_done()
3105 struct mmc_data *data = mrq->data; in sdhci_request_done()
3107 if (host->use_external_dma && data && in sdhci_request_done()
3108 (mrq->cmd->error || data->error)) { in sdhci_request_done()
3111 host->mrqs_done[i] = NULL; in sdhci_request_done()
3112 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3114 spin_lock_irqsave(&host->lock, flags); in sdhci_request_done()
3118 if (data && data->host_cookie == COOKIE_MAPPED) { in sdhci_request_done()
3119 if (host->bounce_buffer) { in sdhci_request_done()
3125 unsigned int length = data->bytes_xfered; in sdhci_request_done()
3127 if (length > host->bounce_buffer_size) { in sdhci_request_done()
3129 mmc_hostname(host->mmc), in sdhci_request_done()
3130 host->bounce_buffer_size, in sdhci_request_done()
3131 data->bytes_xfered); in sdhci_request_done()
3133 length = host->bounce_buffer_size; in sdhci_request_done()
3136 host->mmc->parent, in sdhci_request_done()
3137 host->bounce_addr, in sdhci_request_done()
3138 host->bounce_buffer_size, in sdhci_request_done()
3140 sg_copy_from_buffer(data->sg, in sdhci_request_done()
3141 data->sg_len, in sdhci_request_done()
3142 host->bounce_buffer, in sdhci_request_done()
3147 host->mmc->parent, in sdhci_request_done()
3148 host->bounce_addr, in sdhci_request_done()
3149 host->bounce_buffer_size, in sdhci_request_done()
3154 dma_unmap_sg(mmc_dev(host->mmc), data->sg, in sdhci_request_done()
3155 data->sg_len, in sdhci_request_done()
3158 data->host_cookie = COOKIE_UNMAPPED; in sdhci_request_done()
3162 host->mrqs_done[i] = NULL; in sdhci_request_done()
3164 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3166 if (host->ops->request_done) in sdhci_request_done()
3167 host->ops->request_done(host, mrq); in sdhci_request_done()
3169 mmc_request_done(host->mmc, mrq); in sdhci_request_done()
3190 spin_lock_irqsave(&host->lock, flags); in sdhci_timeout_timer()
3192 if (host->cmd && !sdhci_data_line_cmd(host->cmd)) { in sdhci_timeout_timer()
3194 mmc_hostname(host->mmc)); in sdhci_timeout_timer()
3197 host->cmd->error = -ETIMEDOUT; in sdhci_timeout_timer()
3198 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_timeout_timer()
3201 spin_unlock_irqrestore(&host->lock, flags); in sdhci_timeout_timer()
3211 spin_lock_irqsave(&host->lock, flags); in sdhci_timeout_data_timer()
3213 if (host->data || host->data_cmd || in sdhci_timeout_data_timer()
3214 (host->cmd && sdhci_data_line_cmd(host->cmd))) { in sdhci_timeout_data_timer()
3216 mmc_hostname(host->mmc)); in sdhci_timeout_data_timer()
3219 if (host->data) { in sdhci_timeout_data_timer()
3220 host->data->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3222 queue_work(host->complete_wq, &host->complete_work); in sdhci_timeout_data_timer()
3223 } else if (host->data_cmd) { in sdhci_timeout_data_timer()
3224 host->data_cmd->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3225 sdhci_finish_mrq(host, host->data_cmd->mrq); in sdhci_timeout_data_timer()
3227 host->cmd->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3228 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_timeout_data_timer()
3232 spin_unlock_irqrestore(&host->lock, flags); in sdhci_timeout_data_timer()
3243 /* Handle auto-CMD12 error */ in sdhci_cmd_irq()
3244 if (intmask & SDHCI_INT_AUTO_CMD_ERR && host->data_cmd) { in sdhci_cmd_irq()
3245 struct mmc_request *mrq = host->data_cmd->mrq; in sdhci_cmd_irq()
3251 /* Treat auto-CMD12 error the same as data error */ in sdhci_cmd_irq()
3252 if (!mrq->sbc && (host->flags & SDHCI_AUTO_CMD12)) { in sdhci_cmd_irq()
3258 if (!host->cmd) { in sdhci_cmd_irq()
3264 if (host->pending_reset) in sdhci_cmd_irq()
3267 mmc_hostname(host->mmc), (unsigned)intmask); in sdhci_cmd_irq()
3275 host->cmd->error = -ETIMEDOUT; in sdhci_cmd_irq()
3277 host->cmd->error = -EILSEQ; in sdhci_cmd_irq()
3280 if (host->cmd->data && in sdhci_cmd_irq()
3283 host->cmd = NULL; in sdhci_cmd_irq()
3288 __sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_cmd_irq()
3292 /* Handle auto-CMD23 error */ in sdhci_cmd_irq()
3294 struct mmc_request *mrq = host->cmd->mrq; in sdhci_cmd_irq()
3297 -ETIMEDOUT : in sdhci_cmd_irq()
3298 -EILSEQ; in sdhci_cmd_irq()
3300 if (mrq->sbc && (host->flags & SDHCI_AUTO_CMD23)) { in sdhci_cmd_irq()
3301 mrq->sbc->error = err; in sdhci_cmd_irq()
3313 void *desc = host->adma_table; in sdhci_adma_show_error()
3314 dma_addr_t dma = host->adma_addr; in sdhci_adma_show_error()
3321 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_adma_show_error()
3324 le32_to_cpu(dma_desc->addr_hi), in sdhci_adma_show_error()
3325 le32_to_cpu(dma_desc->addr_lo), in sdhci_adma_show_error()
3326 le16_to_cpu(dma_desc->len), in sdhci_adma_show_error()
3327 le16_to_cpu(dma_desc->cmd)); in sdhci_adma_show_error()
3331 le32_to_cpu(dma_desc->addr_lo), in sdhci_adma_show_error()
3332 le16_to_cpu(dma_desc->len), in sdhci_adma_show_error()
3333 le16_to_cpu(dma_desc->cmd)); in sdhci_adma_show_error()
3335 desc += host->desc_sz; in sdhci_adma_show_error()
3336 dma += host->desc_sz; in sdhci_adma_show_error()
3338 if (dma_desc->cmd & cpu_to_le16(ADMA2_END)) in sdhci_adma_show_error()
3352 host->tuning_done = 1; in sdhci_data_irq()
3353 wake_up(&host->buf_ready_int); in sdhci_data_irq()
3358 if (!host->data) { in sdhci_data_irq()
3359 struct mmc_command *data_cmd = host->data_cmd; in sdhci_data_irq()
3366 if (data_cmd && (data_cmd->flags & MMC_RSP_BUSY)) { in sdhci_data_irq()
3368 host->data_cmd = NULL; in sdhci_data_irq()
3369 data_cmd->error = -ETIMEDOUT; in sdhci_data_irq()
3370 __sdhci_finish_mrq(host, data_cmd->mrq); in sdhci_data_irq()
3374 host->data_cmd = NULL; in sdhci_data_irq()
3376 * Some cards handle busy-end interrupt in sdhci_data_irq()
3380 if (host->cmd == data_cmd) in sdhci_data_irq()
3383 __sdhci_finish_mrq(host, data_cmd->mrq); in sdhci_data_irq()
3393 if (host->pending_reset) in sdhci_data_irq()
3397 mmc_hostname(host->mmc), (unsigned)intmask); in sdhci_data_irq()
3404 host->data->error = -ETIMEDOUT; in sdhci_data_irq()
3406 host->data->error = -EILSEQ; in sdhci_data_irq()
3410 host->data->error = -EILSEQ; in sdhci_data_irq()
3412 pr_err("%s: ADMA error: 0x%08x\n", mmc_hostname(host->mmc), in sdhci_data_irq()
3415 host->data->error = -EIO; in sdhci_data_irq()
3416 if (host->ops->adma_workaround) in sdhci_data_irq()
3417 host->ops->adma_workaround(host, intmask); in sdhci_data_irq()
3420 if (host->data->error) in sdhci_data_irq()
3439 dmanow = dmastart + host->data->bytes_xfered; in sdhci_data_irq()
3444 ~((dma_addr_t)SDHCI_DEFAULT_BOUNDARY_SIZE - 1)) + in sdhci_data_irq()
3446 host->data->bytes_xfered = dmanow - dmastart; in sdhci_data_irq()
3448 &dmastart, host->data->bytes_xfered, &dmanow); in sdhci_data_irq()
3453 if (host->cmd == host->data_cmd) { in sdhci_data_irq()
3459 host->data_early = 1; in sdhci_data_irq()
3470 struct mmc_data *data = mrq->data; in sdhci_defer_done()
3472 return host->pending_reset || host->always_defer_done || in sdhci_defer_done()
3473 ((host->flags & SDHCI_REQ_USE_DMA) && data && in sdhci_defer_done()
3474 data->host_cookie == COOKIE_MAPPED); in sdhci_defer_done()
3486 spin_lock(&host->lock); in sdhci_irq()
3488 if (host->runtime_suspended) { in sdhci_irq()
3489 spin_unlock(&host->lock); in sdhci_irq()
3502 if (host->ops->irq) { in sdhci_irq()
3503 intmask = host->ops->irq(host, intmask); in sdhci_irq()
3528 host->ier &= ~(SDHCI_INT_CARD_INSERT | in sdhci_irq()
3530 host->ier |= present ? SDHCI_INT_CARD_REMOVE : in sdhci_irq()
3532 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_irq()
3533 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_irq()
3538 host->thread_isr |= intmask & (SDHCI_INT_CARD_INSERT | in sdhci_irq()
3551 mmc_hostname(host->mmc)); in sdhci_irq()
3554 mmc_retune_needed(host->mmc); in sdhci_irq()
3557 (host->ier & SDHCI_INT_CARD_INT)) { in sdhci_irq()
3559 sdio_signal_irq(host->mmc); in sdhci_irq()
3576 } while (intmask && --max_loops); in sdhci_irq()
3580 struct mmc_request *mrq = host->mrqs_done[i]; in sdhci_irq()
3589 host->mrqs_done[i] = NULL; in sdhci_irq()
3593 if (host->deferred_cmd) in sdhci_irq()
3596 spin_unlock(&host->lock); in sdhci_irq()
3603 if (host->ops->request_done) in sdhci_irq()
3604 host->ops->request_done(host, mrqs_done[i]); in sdhci_irq()
3606 mmc_request_done(host->mmc, mrqs_done[i]); in sdhci_irq()
3611 mmc_hostname(host->mmc), unexpected); in sdhci_irq()
3628 spin_lock_irqsave(&host->lock, flags); in sdhci_thread_irq()
3630 isr = host->thread_isr; in sdhci_thread_irq()
3631 host->thread_isr = 0; in sdhci_thread_irq()
3633 cmd = host->deferred_cmd; in sdhci_thread_irq()
3635 sdhci_finish_mrq(host, cmd->mrq); in sdhci_thread_irq()
3637 spin_unlock_irqrestore(&host->lock, flags); in sdhci_thread_irq()
3640 struct mmc_host *mmc = host->mmc; in sdhci_thread_irq()
3642 mmc->ops->card_event(mmc); in sdhci_thread_irq()
3659 return mmc_card_is_removable(host->mmc) && in sdhci_cd_irq_can_wakeup()
3660 !(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && in sdhci_cd_irq_can_wakeup()
3661 !mmc_can_gpio_cd(host->mmc); in sdhci_cd_irq_can_wakeup()
3666 * the Interrupt Status Enable register too. See 'Table 1-6: Wakeup Signal
3685 if (mmc_card_wake_sdio_irq(host->mmc)) { in sdhci_enable_irq_wakeups()
3700 host->irq_wake_enabled = !enable_irq_wake(host->irq); in sdhci_enable_irq_wakeups()
3702 return host->irq_wake_enabled; in sdhci_enable_irq_wakeups()
3715 disable_irq_wake(host->irq); in sdhci_disable_irq_wakeups()
3717 host->irq_wake_enabled = false; in sdhci_disable_irq_wakeups()
3724 mmc_retune_timer_stop(host->mmc); in sdhci_suspend_host()
3726 if (!device_may_wakeup(mmc_dev(host->mmc)) || in sdhci_suspend_host()
3728 host->ier = 0; in sdhci_suspend_host()
3731 free_irq(host->irq, host); in sdhci_suspend_host()
3741 struct mmc_host *mmc = host->mmc; in sdhci_resume_host()
3744 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_resume_host()
3745 if (host->ops->enable_dma) in sdhci_resume_host()
3746 host->ops->enable_dma(host); in sdhci_resume_host()
3749 if ((host->mmc->pm_flags & MMC_PM_KEEP_POWER) && in sdhci_resume_host()
3750 (host->quirks2 & SDHCI_QUIRK2_HOST_OFF_CARD_ON)) { in sdhci_resume_host()
3753 host->pwr = 0; in sdhci_resume_host()
3754 host->clock = 0; in sdhci_resume_host()
3755 host->reinit_uhs = true; in sdhci_resume_host()
3756 mmc->ops->set_ios(mmc, &mmc->ios); in sdhci_resume_host()
3758 sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER)); in sdhci_resume_host()
3761 if (host->irq_wake_enabled) { in sdhci_resume_host()
3764 ret = request_threaded_irq(host->irq, sdhci_irq, in sdhci_resume_host()
3766 mmc_hostname(host->mmc), host); in sdhci_resume_host()
3782 mmc_retune_timer_stop(host->mmc); in sdhci_runtime_suspend_host()
3784 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_suspend_host()
3785 host->ier &= SDHCI_INT_CARD_INT; in sdhci_runtime_suspend_host()
3786 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_runtime_suspend_host()
3787 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_runtime_suspend_host()
3788 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_suspend_host()
3790 synchronize_hardirq(host->irq); in sdhci_runtime_suspend_host()
3792 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_suspend_host()
3793 host->runtime_suspended = true; in sdhci_runtime_suspend_host()
3794 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_suspend_host()
3802 struct mmc_host *mmc = host->mmc; in sdhci_runtime_resume_host()
3804 int host_flags = host->flags; in sdhci_runtime_resume_host()
3807 if (host->ops->enable_dma) in sdhci_runtime_resume_host()
3808 host->ops->enable_dma(host); in sdhci_runtime_resume_host()
3813 if (mmc->ios.power_mode != MMC_POWER_UNDEFINED && in sdhci_runtime_resume_host()
3814 mmc->ios.power_mode != MMC_POWER_OFF) { in sdhci_runtime_resume_host()
3815 /* Force clock and power re-program */ in sdhci_runtime_resume_host()
3816 host->pwr = 0; in sdhci_runtime_resume_host()
3817 host->clock = 0; in sdhci_runtime_resume_host()
3818 host->reinit_uhs = true; in sdhci_runtime_resume_host()
3819 mmc->ops->start_signal_voltage_switch(mmc, &mmc->ios); in sdhci_runtime_resume_host()
3820 mmc->ops->set_ios(mmc, &mmc->ios); in sdhci_runtime_resume_host()
3823 !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) { in sdhci_runtime_resume_host()
3824 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_resume_host()
3826 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_resume_host()
3829 if ((mmc->caps2 & MMC_CAP2_HS400_ES) && in sdhci_runtime_resume_host()
3830 mmc->ops->hs400_enhanced_strobe) in sdhci_runtime_resume_host()
3831 mmc->ops->hs400_enhanced_strobe(mmc, &mmc->ios); in sdhci_runtime_resume_host()
3834 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_resume_host()
3836 host->runtime_suspended = false; in sdhci_runtime_resume_host()
3845 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_resume_host()
3865 spin_lock_irqsave(&host->lock, flags); in sdhci_cqe_enable()
3874 if (host->v4_mode && (host->caps1 & SDHCI_CAN_DO_ADMA3)) in sdhci_cqe_enable()
3876 else if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_cqe_enable()
3882 sdhci_writew(host, SDHCI_MAKE_BLKSZ(host->sdma_boundary, 512), in sdhci_cqe_enable()
3888 host->ier = host->cqe_ier; in sdhci_cqe_enable()
3890 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_cqe_enable()
3891 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_cqe_enable()
3893 host->cqe_on = true; in sdhci_cqe_enable()
3896 mmc_hostname(mmc), host->ier, in sdhci_cqe_enable()
3899 spin_unlock_irqrestore(&host->lock, flags); in sdhci_cqe_enable()
3908 spin_lock_irqsave(&host->lock, flags); in sdhci_cqe_disable()
3912 host->cqe_on = false; in sdhci_cqe_disable()
3920 mmc_hostname(mmc), host->ier, in sdhci_cqe_disable()
3923 spin_unlock_irqrestore(&host->lock, flags); in sdhci_cqe_disable()
3932 if (!host->cqe_on) in sdhci_cqe_irq()
3936 *cmd_error = -EILSEQ; in sdhci_cqe_irq()
3938 *cmd_error = -ETIMEDOUT; in sdhci_cqe_irq()
3943 *data_error = -EILSEQ; in sdhci_cqe_irq()
3945 *data_error = -ETIMEDOUT; in sdhci_cqe_irq()
3947 *data_error = -EIO; in sdhci_cqe_irq()
3952 mask = intmask & host->cqe_ier; in sdhci_cqe_irq()
3957 mmc_hostname(host->mmc)); in sdhci_cqe_irq()
3959 intmask &= ~(host->cqe_ier | SDHCI_INT_ERROR); in sdhci_cqe_irq()
3963 mmc_hostname(host->mmc), intmask); in sdhci_cqe_irq()
3987 return ERR_PTR(-ENOMEM); in sdhci_alloc_host()
3990 host->mmc = mmc; in sdhci_alloc_host()
3991 host->mmc_host_ops = sdhci_ops; in sdhci_alloc_host()
3992 mmc->ops = &host->mmc_host_ops; in sdhci_alloc_host()
3994 host->flags = SDHCI_SIGNALING_330; in sdhci_alloc_host()
3996 host->cqe_ier = SDHCI_CQE_INT_MASK; in sdhci_alloc_host()
3997 host->cqe_err_ier = SDHCI_CQE_INT_ERR_MASK; in sdhci_alloc_host()
3999 host->tuning_delay = -1; in sdhci_alloc_host()
4000 host->tuning_loop_count = MAX_TUNING_LOOP; in sdhci_alloc_host()
4002 host->sdma_boundary = SDHCI_DEFAULT_BOUNDARY_ARG; in sdhci_alloc_host()
4009 host->adma_table_cnt = SDHCI_MAX_SEGS * 2 + 1; in sdhci_alloc_host()
4010 host->max_adma = 65536; in sdhci_alloc_host()
4019 struct mmc_host *mmc = host->mmc; in sdhci_set_dma_mask()
4021 int ret = -EINVAL; in sdhci_set_dma_mask()
4023 if (host->quirks2 & SDHCI_QUIRK2_BROKEN_64_BIT_DMA) in sdhci_set_dma_mask()
4024 host->flags &= ~SDHCI_USE_64_BIT_DMA; in sdhci_set_dma_mask()
4026 /* Try 64-bit mask if hardware is capable of it */ in sdhci_set_dma_mask()
4027 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_set_dma_mask()
4030 pr_warn("%s: Failed to set 64-bit DMA mask.\n", in sdhci_set_dma_mask()
4032 host->flags &= ~SDHCI_USE_64_BIT_DMA; in sdhci_set_dma_mask()
4036 /* 32-bit mask as default & fallback */ in sdhci_set_dma_mask()
4040 pr_warn("%s: Failed to set 32-bit DMA mask.\n", in sdhci_set_dma_mask()
4054 if (host->read_caps) in __sdhci_read_caps()
4057 host->read_caps = true; in __sdhci_read_caps()
4060 host->quirks = debug_quirks; in __sdhci_read_caps()
4063 host->quirks2 = debug_quirks2; in __sdhci_read_caps()
4067 if (host->v4_mode) in __sdhci_read_caps()
4070 device_property_read_u64_array(mmc_dev(host->mmc), in __sdhci_read_caps()
4071 "sdhci-caps-mask", &dt_caps_mask, 1); in __sdhci_read_caps()
4072 device_property_read_u64_array(mmc_dev(host->mmc), in __sdhci_read_caps()
4073 "sdhci-caps", &dt_caps, 1); in __sdhci_read_caps()
4076 host->version = (v & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT; in __sdhci_read_caps()
4078 if (host->quirks & SDHCI_QUIRK_MISSING_CAPS) in __sdhci_read_caps()
4082 host->caps = *caps; in __sdhci_read_caps()
4084 host->caps = sdhci_readl(host, SDHCI_CAPABILITIES); in __sdhci_read_caps()
4085 host->caps &= ~lower_32_bits(dt_caps_mask); in __sdhci_read_caps()
4086 host->caps |= lower_32_bits(dt_caps); in __sdhci_read_caps()
4089 if (host->version < SDHCI_SPEC_300) in __sdhci_read_caps()
4093 host->caps1 = *caps1; in __sdhci_read_caps()
4095 host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1); in __sdhci_read_caps()
4096 host->caps1 &= ~upper_32_bits(dt_caps_mask); in __sdhci_read_caps()
4097 host->caps1 |= upper_32_bits(dt_caps); in __sdhci_read_caps()
4104 struct mmc_host *mmc = host->mmc; in sdhci_allocate_bounce_buffer()
4120 if (mmc->max_req_size < bounce_size) in sdhci_allocate_bounce_buffer()
4121 bounce_size = mmc->max_req_size; in sdhci_allocate_bounce_buffer()
4129 host->bounce_buffer = devm_kmalloc(mmc->parent, in sdhci_allocate_bounce_buffer()
4132 if (!host->bounce_buffer) { in sdhci_allocate_bounce_buffer()
4138 * mmc->max_segs == 1. in sdhci_allocate_bounce_buffer()
4143 host->bounce_addr = dma_map_single(mmc->parent, in sdhci_allocate_bounce_buffer()
4144 host->bounce_buffer, in sdhci_allocate_bounce_buffer()
4147 ret = dma_mapping_error(mmc->parent, host->bounce_addr); in sdhci_allocate_bounce_buffer()
4151 host->bounce_buffer_size = bounce_size; in sdhci_allocate_bounce_buffer()
4154 mmc->max_segs = max_blocks; in sdhci_allocate_bounce_buffer()
4155 mmc->max_seg_size = bounce_size; in sdhci_allocate_bounce_buffer()
4156 mmc->max_req_size = bounce_size; in sdhci_allocate_bounce_buffer()
4166 * version 4.10 in Capabilities Register is used as 64-bit System in sdhci_can_64bit_dma()
4169 if (host->version >= SDHCI_SPEC_410 && host->v4_mode) in sdhci_can_64bit_dma()
4170 return host->caps & SDHCI_CAN_64BIT_V4; in sdhci_can_64bit_dma()
4172 return host->caps & SDHCI_CAN_64BIT; in sdhci_can_64bit_dma()
4187 return -EINVAL; in sdhci_setup_host()
4189 mmc = host->mmc; in sdhci_setup_host()
4197 if (!mmc->supply.vqmmc) { in sdhci_setup_host()
4213 override_timeout_clk = host->timeout_clk; in sdhci_setup_host()
4215 if (host->version > SDHCI_SPEC_420) { in sdhci_setup_host()
4217 mmc_hostname(mmc), host->version); in sdhci_setup_host()
4220 if (host->quirks & SDHCI_QUIRK_FORCE_DMA) in sdhci_setup_host()
4221 host->flags |= SDHCI_USE_SDMA; in sdhci_setup_host()
4222 else if (!(host->caps & SDHCI_CAN_DO_SDMA)) in sdhci_setup_host()
4225 host->flags |= SDHCI_USE_SDMA; in sdhci_setup_host()
4227 if ((host->quirks & SDHCI_QUIRK_BROKEN_DMA) && in sdhci_setup_host()
4228 (host->flags & SDHCI_USE_SDMA)) { in sdhci_setup_host()
4230 host->flags &= ~SDHCI_USE_SDMA; in sdhci_setup_host()
4233 if ((host->version >= SDHCI_SPEC_200) && in sdhci_setup_host()
4234 (host->caps & SDHCI_CAN_DO_ADMA2)) in sdhci_setup_host()
4235 host->flags |= SDHCI_USE_ADMA; in sdhci_setup_host()
4237 if ((host->quirks & SDHCI_QUIRK_BROKEN_ADMA) && in sdhci_setup_host()
4238 (host->flags & SDHCI_USE_ADMA)) { in sdhci_setup_host()
4240 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4244 host->flags |= SDHCI_USE_64_BIT_DMA; in sdhci_setup_host()
4246 if (host->use_external_dma) { in sdhci_setup_host()
4248 if (ret == -EPROBE_DEFER) in sdhci_setup_host()
4258 host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA); in sdhci_setup_host()
4261 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_setup_host()
4262 if (host->ops->set_dma_mask) in sdhci_setup_host()
4263 ret = host->ops->set_dma_mask(host); in sdhci_setup_host()
4267 if (!ret && host->ops->enable_dma) in sdhci_setup_host()
4268 ret = host->ops->enable_dma(host); in sdhci_setup_host()
4271 pr_warn("%s: No suitable DMA available - falling back to PIO\n", in sdhci_setup_host()
4273 host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA); in sdhci_setup_host()
4279 /* SDMA does not support 64-bit DMA if v4 mode not set */ in sdhci_setup_host()
4280 if ((host->flags & SDHCI_USE_64_BIT_DMA) && !host->v4_mode) in sdhci_setup_host()
4281 host->flags &= ~SDHCI_USE_SDMA; in sdhci_setup_host()
4283 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4287 if (!(host->flags & SDHCI_USE_64_BIT_DMA)) in sdhci_setup_host()
4288 host->alloc_desc_sz = SDHCI_ADMA2_32_DESC_SZ; in sdhci_setup_host()
4289 else if (!host->alloc_desc_sz) in sdhci_setup_host()
4290 host->alloc_desc_sz = SDHCI_ADMA2_64_DESC_SZ(host); in sdhci_setup_host()
4292 host->desc_sz = host->alloc_desc_sz; in sdhci_setup_host()
4293 host->adma_table_sz = host->adma_table_cnt * host->desc_sz; in sdhci_setup_host()
4295 host->align_buffer_sz = SDHCI_MAX_SEGS * SDHCI_ADMA2_ALIGN; in sdhci_setup_host()
4297 * Use zalloc to zero the reserved high 32-bits of 128-bit in sdhci_setup_host()
4301 host->align_buffer_sz + host->adma_table_sz, in sdhci_setup_host()
4304 pr_warn("%s: Unable to allocate ADMA buffers - falling back to standard DMA\n", in sdhci_setup_host()
4306 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4307 } else if ((dma + host->align_buffer_sz) & in sdhci_setup_host()
4308 (SDHCI_ADMA2_DESC_ALIGN - 1)) { in sdhci_setup_host()
4311 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4312 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_setup_host()
4313 host->adma_table_sz, buf, dma); in sdhci_setup_host()
4315 host->align_buffer = buf; in sdhci_setup_host()
4316 host->align_addr = dma; in sdhci_setup_host()
4318 host->adma_table = buf + host->align_buffer_sz; in sdhci_setup_host()
4319 host->adma_addr = dma + host->align_buffer_sz; in sdhci_setup_host()
4328 if (!(host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA))) { in sdhci_setup_host()
4329 host->dma_mask = DMA_BIT_MASK(64); in sdhci_setup_host()
4330 mmc_dev(mmc)->dma_mask = &host->dma_mask; in sdhci_setup_host()
4333 if (host->version >= SDHCI_SPEC_300) in sdhci_setup_host()
4334 host->max_clk = FIELD_GET(SDHCI_CLOCK_V3_BASE_MASK, host->caps); in sdhci_setup_host()
4336 host->max_clk = FIELD_GET(SDHCI_CLOCK_BASE_MASK, host->caps); in sdhci_setup_host()
4338 host->max_clk *= 1000000; in sdhci_setup_host()
4339 if (host->max_clk == 0 || host->quirks & in sdhci_setup_host()
4341 if (!host->ops->get_max_clock) { in sdhci_setup_host()
4344 ret = -ENODEV; in sdhci_setup_host()
4347 host->max_clk = host->ops->get_max_clock(host); in sdhci_setup_host()
4354 host->clk_mul = FIELD_GET(SDHCI_CLOCK_MUL_MASK, host->caps1); in sdhci_setup_host()
4362 if (host->clk_mul) in sdhci_setup_host()
4363 host->clk_mul += 1; in sdhci_setup_host()
4368 max_clk = host->max_clk; in sdhci_setup_host()
4370 if (host->ops->get_min_clock) in sdhci_setup_host()
4371 mmc->f_min = host->ops->get_min_clock(host); in sdhci_setup_host()
4372 else if (host->version >= SDHCI_SPEC_300) { in sdhci_setup_host()
4373 if (host->clk_mul) in sdhci_setup_host()
4374 max_clk = host->max_clk * host->clk_mul; in sdhci_setup_host()
4379 mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300; in sdhci_setup_host()
4381 mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200; in sdhci_setup_host()
4383 if (!mmc->f_max || mmc->f_max > max_clk) in sdhci_setup_host()
4384 mmc->f_max = max_clk; in sdhci_setup_host()
4386 if (!(host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)) { in sdhci_setup_host()
4387 host->timeout_clk = FIELD_GET(SDHCI_TIMEOUT_CLK_MASK, host->caps); in sdhci_setup_host()
4389 if (host->caps & SDHCI_TIMEOUT_CLK_UNIT) in sdhci_setup_host()
4390 host->timeout_clk *= 1000; in sdhci_setup_host()
4392 if (host->timeout_clk == 0) { in sdhci_setup_host()
4393 if (!host->ops->get_timeout_clock) { in sdhci_setup_host()
4396 ret = -ENODEV; in sdhci_setup_host()
4400 host->timeout_clk = in sdhci_setup_host()
4401 DIV_ROUND_UP(host->ops->get_timeout_clock(host), in sdhci_setup_host()
4406 host->timeout_clk = override_timeout_clk; in sdhci_setup_host()
4408 mmc->max_busy_timeout = host->ops->get_max_timeout_count ? in sdhci_setup_host()
4409 host->ops->get_max_timeout_count(host) : 1 << 27; in sdhci_setup_host()
4410 mmc->max_busy_timeout /= host->timeout_clk; in sdhci_setup_host()
4413 if (host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT && in sdhci_setup_host()
4414 !host->ops->get_max_timeout_count) in sdhci_setup_host()
4415 mmc->max_busy_timeout = 0; in sdhci_setup_host()
4417 mmc->caps |= MMC_CAP_SDIO_IRQ | MMC_CAP_CMD23; in sdhci_setup_host()
4418 mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD; in sdhci_setup_host()
4420 if (host->quirks & SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12) in sdhci_setup_host()
4421 host->flags |= SDHCI_AUTO_CMD12; in sdhci_setup_host()
4424 * For v3 mode, Auto-CMD23 stuff only works in ADMA or PIO. in sdhci_setup_host()
4425 * For v4 mode, SDMA may use Auto-CMD23 as well. in sdhci_setup_host()
4427 if ((host->version >= SDHCI_SPEC_300) && in sdhci_setup_host()
4428 ((host->flags & SDHCI_USE_ADMA) || in sdhci_setup_host()
4429 !(host->flags & SDHCI_USE_SDMA) || host->v4_mode) && in sdhci_setup_host()
4430 !(host->quirks2 & SDHCI_QUIRK2_ACMD23_BROKEN)) { in sdhci_setup_host()
4431 host->flags |= SDHCI_AUTO_CMD23; in sdhci_setup_host()
4432 DBG("Auto-CMD23 available\n"); in sdhci_setup_host()
4434 DBG("Auto-CMD23 unavailable\n"); in sdhci_setup_host()
4438 * A controller may support 8-bit width, but the board itself in sdhci_setup_host()
4440 * 8-bit width must set "mmc->caps |= MMC_CAP_8_BIT_DATA;" in in sdhci_setup_host()
4442 * won't assume 8-bit width for hosts without that CAP. in sdhci_setup_host()
4444 if (!(host->quirks & SDHCI_QUIRK_FORCE_1_BIT_DATA)) in sdhci_setup_host()
4445 mmc->caps |= MMC_CAP_4_BIT_DATA; in sdhci_setup_host()
4447 if (host->quirks2 & SDHCI_QUIRK2_HOST_NO_CMD23) in sdhci_setup_host()
4448 mmc->caps &= ~MMC_CAP_CMD23; in sdhci_setup_host()
4450 if (host->caps & SDHCI_CAN_DO_HISPD) in sdhci_setup_host()
4451 mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED; in sdhci_setup_host()
4453 if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && in sdhci_setup_host()
4455 mmc_gpio_get_cd(host->mmc) < 0) in sdhci_setup_host()
4456 mmc->caps |= MMC_CAP_NEEDS_POLL; in sdhci_setup_host()
4458 if (!IS_ERR(mmc->supply.vqmmc)) { in sdhci_setup_host()
4460 ret = regulator_enable(mmc->supply.vqmmc); in sdhci_setup_host()
4461 host->sdhci_core_to_disable_vqmmc = !ret; in sdhci_setup_host()
4465 if (!regulator_is_supported_voltage(mmc->supply.vqmmc, 1700000, in sdhci_setup_host()
4467 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | in sdhci_setup_host()
4472 if (!regulator_is_supported_voltage(mmc->supply.vqmmc, 2700000, in sdhci_setup_host()
4474 host->flags &= ~SDHCI_SIGNALING_330; in sdhci_setup_host()
4479 mmc->supply.vqmmc = ERR_PTR(-EINVAL); in sdhci_setup_host()
4484 if (host->quirks2 & SDHCI_QUIRK2_NO_1_8_V) { in sdhci_setup_host()
4485 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | in sdhci_setup_host()
4489 * (indicated using mmc-hs200-1_8v/mmc-hs400-1_8v dt property), in sdhci_setup_host()
4495 mmc->caps2 &= ~(MMC_CAP2_HSX00_1_8V | MMC_CAP2_HS400_ES); in sdhci_setup_host()
4496 mmc->caps &= ~(MMC_CAP_1_8V_DDR | MMC_CAP_UHS); in sdhci_setup_host()
4499 /* Any UHS-I mode in caps implies SDR12 and SDR25 support. */ in sdhci_setup_host()
4500 if (host->caps1 & (SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | in sdhci_setup_host()
4502 mmc->caps |= MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25; in sdhci_setup_host()
4505 if (host->caps1 & SDHCI_SUPPORT_SDR104) { in sdhci_setup_host()
4506 mmc->caps |= MMC_CAP_UHS_SDR104 | MMC_CAP_UHS_SDR50; in sdhci_setup_host()
4510 if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200)) in sdhci_setup_host()
4511 mmc->caps2 |= MMC_CAP2_HS200; in sdhci_setup_host()
4512 } else if (host->caps1 & SDHCI_SUPPORT_SDR50) { in sdhci_setup_host()
4513 mmc->caps |= MMC_CAP_UHS_SDR50; in sdhci_setup_host()
4516 if (host->quirks2 & SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 && in sdhci_setup_host()
4517 (host->caps1 & SDHCI_SUPPORT_HS400)) in sdhci_setup_host()
4518 mmc->caps2 |= MMC_CAP2_HS400; in sdhci_setup_host()
4520 if ((mmc->caps2 & MMC_CAP2_HSX00_1_2V) && in sdhci_setup_host()
4521 (IS_ERR(mmc->supply.vqmmc) || in sdhci_setup_host()
4522 !regulator_is_supported_voltage(mmc->supply.vqmmc, 1100000, in sdhci_setup_host()
4524 mmc->caps2 &= ~MMC_CAP2_HSX00_1_2V; in sdhci_setup_host()
4526 if ((host->caps1 & SDHCI_SUPPORT_DDR50) && in sdhci_setup_host()
4527 !(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50)) in sdhci_setup_host()
4528 mmc->caps |= MMC_CAP_UHS_DDR50; in sdhci_setup_host()
4531 if (host->caps1 & SDHCI_USE_SDR50_TUNING) in sdhci_setup_host()
4532 host->flags |= SDHCI_SDR50_NEEDS_TUNING; in sdhci_setup_host()
4535 if (host->caps1 & SDHCI_DRIVER_TYPE_A) in sdhci_setup_host()
4536 mmc->caps |= MMC_CAP_DRIVER_TYPE_A; in sdhci_setup_host()
4537 if (host->caps1 & SDHCI_DRIVER_TYPE_C) in sdhci_setup_host()
4538 mmc->caps |= MMC_CAP_DRIVER_TYPE_C; in sdhci_setup_host()
4539 if (host->caps1 & SDHCI_DRIVER_TYPE_D) in sdhci_setup_host()
4540 mmc->caps |= MMC_CAP_DRIVER_TYPE_D; in sdhci_setup_host()
4542 /* Initial value for re-tuning timer count */ in sdhci_setup_host()
4543 host->tuning_count = FIELD_GET(SDHCI_RETUNING_TIMER_COUNT_MASK, in sdhci_setup_host()
4544 host->caps1); in sdhci_setup_host()
4547 * In case Re-tuning Timer is not disabled, the actual value of in sdhci_setup_host()
4548 * re-tuning timer will be 2 ^ (n - 1). in sdhci_setup_host()
4550 if (host->tuning_count) in sdhci_setup_host()
4551 host->tuning_count = 1 << (host->tuning_count - 1); in sdhci_setup_host()
4553 /* Re-tuning mode supported by the Host Controller */ in sdhci_setup_host()
4554 host->tuning_mode = FIELD_GET(SDHCI_RETUNING_MODE_MASK, host->caps1); in sdhci_setup_host()
4566 if (!max_current_caps && !IS_ERR(mmc->supply.vmmc)) { in sdhci_setup_host()
4567 int curr = regulator_get_current_limit(mmc->supply.vmmc); in sdhci_setup_host()
4582 if (host->caps & SDHCI_CAN_VDD_330) { in sdhci_setup_host()
4585 mmc->max_current_330 = FIELD_GET(SDHCI_MAX_CURRENT_330_MASK, in sdhci_setup_host()
4589 if (host->caps & SDHCI_CAN_VDD_300) { in sdhci_setup_host()
4592 mmc->max_current_300 = FIELD_GET(SDHCI_MAX_CURRENT_300_MASK, in sdhci_setup_host()
4596 if (host->caps & SDHCI_CAN_VDD_180) { in sdhci_setup_host()
4599 mmc->max_current_180 = FIELD_GET(SDHCI_MAX_CURRENT_180_MASK, in sdhci_setup_host()
4605 if (host->ocr_mask) in sdhci_setup_host()
4606 ocr_avail = host->ocr_mask; in sdhci_setup_host()
4609 if (mmc->ocr_avail) in sdhci_setup_host()
4610 ocr_avail = mmc->ocr_avail; in sdhci_setup_host()
4612 mmc->ocr_avail = ocr_avail; in sdhci_setup_host()
4613 mmc->ocr_avail_sdio = ocr_avail; in sdhci_setup_host()
4614 if (host->ocr_avail_sdio) in sdhci_setup_host()
4615 mmc->ocr_avail_sdio &= host->ocr_avail_sdio; in sdhci_setup_host()
4616 mmc->ocr_avail_sd = ocr_avail; in sdhci_setup_host()
4617 if (host->ocr_avail_sd) in sdhci_setup_host()
4618 mmc->ocr_avail_sd &= host->ocr_avail_sd; in sdhci_setup_host()
4620 mmc->ocr_avail_sd &= ~MMC_VDD_165_195; in sdhci_setup_host()
4621 mmc->ocr_avail_mmc = ocr_avail; in sdhci_setup_host()
4622 if (host->ocr_avail_mmc) in sdhci_setup_host()
4623 mmc->ocr_avail_mmc &= host->ocr_avail_mmc; in sdhci_setup_host()
4625 if (mmc->ocr_avail == 0) { in sdhci_setup_host()
4628 ret = -ENODEV; in sdhci_setup_host()
4632 if ((mmc->caps & (MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 | in sdhci_setup_host()
4635 (mmc->caps2 & (MMC_CAP2_HS200_1_8V_SDR | MMC_CAP2_HS400_1_8V))) in sdhci_setup_host()
4636 host->flags |= SDHCI_SIGNALING_180; in sdhci_setup_host()
4638 if (mmc->caps2 & MMC_CAP2_HSX00_1_2V) in sdhci_setup_host()
4639 host->flags |= SDHCI_SIGNALING_120; in sdhci_setup_host()
4641 spin_lock_init(&host->lock); in sdhci_setup_host()
4648 mmc->max_req_size = 524288; in sdhci_setup_host()
4654 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4655 mmc->max_segs = SDHCI_MAX_SEGS; in sdhci_setup_host()
4656 } else if (host->flags & SDHCI_USE_SDMA) { in sdhci_setup_host()
4657 mmc->max_segs = 1; in sdhci_setup_host()
4661 mmc->max_req_size = min(mmc->max_req_size, in sdhci_setup_host()
4665 mmc->max_segs = SDHCI_MAX_SEGS; in sdhci_setup_host()
4673 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4674 if (host->quirks & SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC) { in sdhci_setup_host()
4675 host->max_adma = 65532; /* 32-bit alignment */ in sdhci_setup_host()
4676 mmc->max_seg_size = 65535; in sdhci_setup_host()
4678 mmc->max_seg_size = 65536; in sdhci_setup_host()
4681 mmc->max_seg_size = mmc->max_req_size; in sdhci_setup_host()
4688 if (host->quirks & SDHCI_QUIRK_FORCE_BLK_SZ_2048) { in sdhci_setup_host()
4689 mmc->max_blk_size = 2; in sdhci_setup_host()
4691 mmc->max_blk_size = (host->caps & SDHCI_MAX_BLOCK_MASK) >> in sdhci_setup_host()
4693 if (mmc->max_blk_size >= 3) { in sdhci_setup_host()
4696 mmc->max_blk_size = 0; in sdhci_setup_host()
4700 mmc->max_blk_size = 512 << mmc->max_blk_size; in sdhci_setup_host()
4705 mmc->max_blk_count = (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535; in sdhci_setup_host()
4707 if (mmc->max_segs == 1) in sdhci_setup_host()
4708 /* This may alter mmc->*_blk_* parameters */ in sdhci_setup_host()
4714 if (host->sdhci_core_to_disable_vqmmc) in sdhci_setup_host()
4715 regulator_disable(mmc->supply.vqmmc); in sdhci_setup_host()
4717 if (host->align_buffer) in sdhci_setup_host()
4718 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_setup_host()
4719 host->adma_table_sz, host->align_buffer, in sdhci_setup_host()
4720 host->align_addr); in sdhci_setup_host()
4721 host->adma_table = NULL; in sdhci_setup_host()
4722 host->align_buffer = NULL; in sdhci_setup_host()
4730 struct mmc_host *mmc = host->mmc; in sdhci_cleanup_host()
4732 if (host->sdhci_core_to_disable_vqmmc) in sdhci_cleanup_host()
4733 regulator_disable(mmc->supply.vqmmc); in sdhci_cleanup_host()
4735 if (host->align_buffer) in sdhci_cleanup_host()
4736 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_cleanup_host()
4737 host->adma_table_sz, host->align_buffer, in sdhci_cleanup_host()
4738 host->align_addr); in sdhci_cleanup_host()
4740 if (host->use_external_dma) in sdhci_cleanup_host()
4743 host->adma_table = NULL; in sdhci_cleanup_host()
4744 host->align_buffer = NULL; in sdhci_cleanup_host()
4751 struct mmc_host *mmc = host->mmc; in __sdhci_add_host()
4754 if ((mmc->caps2 & MMC_CAP2_CQE) && in __sdhci_add_host()
4755 (host->quirks & SDHCI_QUIRK_BROKEN_CQE)) { in __sdhci_add_host()
4756 mmc->caps2 &= ~MMC_CAP2_CQE; in __sdhci_add_host()
4757 mmc->cqe_ops = NULL; in __sdhci_add_host()
4760 host->complete_wq = alloc_workqueue("sdhci", flags, 0); in __sdhci_add_host()
4761 if (!host->complete_wq) in __sdhci_add_host()
4762 return -ENOMEM; in __sdhci_add_host()
4764 INIT_WORK(&host->complete_work, sdhci_complete_work); in __sdhci_add_host()
4766 timer_setup(&host->timer, sdhci_timeout_timer, 0); in __sdhci_add_host()
4767 timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); in __sdhci_add_host()
4769 init_waitqueue_head(&host->buf_ready_int); in __sdhci_add_host()
4773 ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq, in __sdhci_add_host()
4777 mmc_hostname(mmc), host->irq, ret); in __sdhci_add_host()
4793 mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)), in __sdhci_add_host()
4794 host->use_external_dma ? "External DMA" : in __sdhci_add_host()
4795 (host->flags & SDHCI_USE_ADMA) ? in __sdhci_add_host()
4796 (host->flags & SDHCI_USE_64_BIT_DMA) ? "ADMA 64-bit" : "ADMA" : in __sdhci_add_host()
4797 (host->flags & SDHCI_USE_SDMA) ? "DMA" : "PIO"); in __sdhci_add_host()
4809 free_irq(host->irq, host); in __sdhci_add_host()
4811 destroy_workqueue(host->complete_wq); in __sdhci_add_host()
4840 struct mmc_host *mmc = host->mmc; in sdhci_remove_host()
4844 spin_lock_irqsave(&host->lock, flags); in sdhci_remove_host()
4846 host->flags |= SDHCI_DEVICE_DEAD; in sdhci_remove_host()
4851 sdhci_error_out_mrqs(host, -ENOMEDIUM); in sdhci_remove_host()
4854 spin_unlock_irqrestore(&host->lock, flags); in sdhci_remove_host()
4868 free_irq(host->irq, host); in sdhci_remove_host()
4870 del_timer_sync(&host->timer); in sdhci_remove_host()
4871 del_timer_sync(&host->data_timer); in sdhci_remove_host()
4873 destroy_workqueue(host->complete_wq); in sdhci_remove_host()
4875 if (host->sdhci_core_to_disable_vqmmc) in sdhci_remove_host()
4876 regulator_disable(mmc->supply.vqmmc); in sdhci_remove_host()
4878 if (host->align_buffer) in sdhci_remove_host()
4879 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_remove_host()
4880 host->adma_table_sz, host->align_buffer, in sdhci_remove_host()
4881 host->align_addr); in sdhci_remove_host()
4883 if (host->use_external_dma) in sdhci_remove_host()
4886 host->adma_table = NULL; in sdhci_remove_host()
4887 host->align_buffer = NULL; in sdhci_remove_host()
4894 mmc_free_host(host->mmc); in sdhci_free_host()