Lines Matching full:host
3 * linux/drivers/mmc/host/sdhci.c - Secure Digital Host Controller Interface driver
31 #include <linux/mmc/host.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)
51 static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable);
53 static bool sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd);
55 void sdhci_dumpregs(struct sdhci_host *host) in sdhci_dumpregs() argument
60 sdhci_readl(host, SDHCI_DMA_ADDRESS), in sdhci_dumpregs()
61 sdhci_readw(host, SDHCI_HOST_VERSION)); in sdhci_dumpregs()
63 sdhci_readw(host, SDHCI_BLOCK_SIZE), in sdhci_dumpregs()
64 sdhci_readw(host, SDHCI_BLOCK_COUNT)); in sdhci_dumpregs()
66 sdhci_readl(host, SDHCI_ARGUMENT), in sdhci_dumpregs()
67 sdhci_readw(host, SDHCI_TRANSFER_MODE)); in sdhci_dumpregs()
68 SDHCI_DUMP("Present: 0x%08x | Host ctl: 0x%08x\n", in sdhci_dumpregs()
69 sdhci_readl(host, SDHCI_PRESENT_STATE), in sdhci_dumpregs()
70 sdhci_readb(host, SDHCI_HOST_CONTROL)); in sdhci_dumpregs()
72 sdhci_readb(host, SDHCI_POWER_CONTROL), in sdhci_dumpregs()
73 sdhci_readb(host, SDHCI_BLOCK_GAP_CONTROL)); in sdhci_dumpregs()
75 sdhci_readb(host, SDHCI_WAKE_UP_CONTROL), in sdhci_dumpregs()
76 sdhci_readw(host, SDHCI_CLOCK_CONTROL)); in sdhci_dumpregs()
78 sdhci_readb(host, SDHCI_TIMEOUT_CONTROL), in sdhci_dumpregs()
79 sdhci_readl(host, SDHCI_INT_STATUS)); in sdhci_dumpregs()
81 sdhci_readl(host, SDHCI_INT_ENABLE), in sdhci_dumpregs()
82 sdhci_readl(host, SDHCI_SIGNAL_ENABLE)); in sdhci_dumpregs()
84 sdhci_readw(host, SDHCI_AUTO_CMD_STATUS), in sdhci_dumpregs()
85 sdhci_readw(host, SDHCI_SLOT_INT_STATUS)); in sdhci_dumpregs()
87 sdhci_readl(host, SDHCI_CAPABILITIES), in sdhci_dumpregs()
88 sdhci_readl(host, SDHCI_CAPABILITIES_1)); in sdhci_dumpregs()
90 sdhci_readw(host, SDHCI_COMMAND), in sdhci_dumpregs()
91 sdhci_readl(host, SDHCI_MAX_CURRENT)); in sdhci_dumpregs()
93 sdhci_readl(host, SDHCI_RESPONSE), in sdhci_dumpregs()
94 sdhci_readl(host, SDHCI_RESPONSE + 4)); in sdhci_dumpregs()
96 sdhci_readl(host, SDHCI_RESPONSE + 8), in sdhci_dumpregs()
97 sdhci_readl(host, SDHCI_RESPONSE + 12)); in sdhci_dumpregs()
98 SDHCI_DUMP("Host ctl2: 0x%08x\n", in sdhci_dumpregs()
99 sdhci_readw(host, SDHCI_HOST_CONTROL2)); 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()
104 sdhci_readl(host, SDHCI_ADMA_ERROR), in sdhci_dumpregs()
105 sdhci_readl(host, SDHCI_ADMA_ADDRESS_HI), in sdhci_dumpregs()
106 sdhci_readl(host, SDHCI_ADMA_ADDRESS)); in sdhci_dumpregs()
109 sdhci_readl(host, SDHCI_ADMA_ERROR), in sdhci_dumpregs()
110 sdhci_readl(host, SDHCI_ADMA_ADDRESS)); in sdhci_dumpregs()
114 if (host->ops->dump_vendor_regs) in sdhci_dumpregs()
115 host->ops->dump_vendor_regs(host); in sdhci_dumpregs()
127 static void sdhci_do_enable_v4_mode(struct sdhci_host *host) in sdhci_do_enable_v4_mode() argument
131 ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_do_enable_v4_mode()
136 sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2); in sdhci_do_enable_v4_mode()
140 * This can be called before sdhci_add_host() by Vendor's host controller
143 void sdhci_enable_v4_mode(struct sdhci_host *host) in sdhci_enable_v4_mode() argument
145 host->v4_mode = true; in sdhci_enable_v4_mode()
146 sdhci_do_enable_v4_mode(host); in sdhci_enable_v4_mode()
155 static void sdhci_set_card_detection(struct sdhci_host *host, bool enable) in sdhci_set_card_detection() argument
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()
164 present = sdhci_readl(host, SDHCI_PRESENT_STATE) & 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()
177 static void sdhci_enable_card_detection(struct sdhci_host *host) in sdhci_enable_card_detection() argument
179 sdhci_set_card_detection(host, true); in sdhci_enable_card_detection()
182 static void sdhci_disable_card_detection(struct sdhci_host *host) in sdhci_disable_card_detection() argument
184 sdhci_set_card_detection(host, false); in sdhci_disable_card_detection()
187 static void sdhci_runtime_pm_bus_on(struct sdhci_host *host) in sdhci_runtime_pm_bus_on() argument
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()
195 static void sdhci_runtime_pm_bus_off(struct sdhci_host *host) in sdhci_runtime_pm_bus_off() argument
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()
203 void sdhci_reset(struct sdhci_host *host, u8 mask) in sdhci_reset() argument
207 sdhci_writeb(host, mask, SDHCI_SOFTWARE_RESET); in sdhci_reset()
210 host->clock = 0; in sdhci_reset()
212 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_reset()
213 sdhci_runtime_pm_bus_off(host); in sdhci_reset()
223 if (!(sdhci_readb(host, SDHCI_SOFTWARE_RESET) & mask)) in sdhci_reset()
227 mmc_hostname(host->mmc), (int)mask); in sdhci_reset()
228 sdhci_dumpregs(host); in sdhci_reset()
236 static void sdhci_do_reset(struct sdhci_host *host, u8 mask) in sdhci_do_reset() argument
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()
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()
258 static void sdhci_set_default_irqs(struct sdhci_host *host) in sdhci_set_default_irqs() argument
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()
274 static void sdhci_config_dma(struct sdhci_host *host) in sdhci_config_dma() argument
279 if (host->version < SDHCI_SPEC_200) in sdhci_config_dma()
282 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); 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()
303 if (host->v4_mode) { in sdhci_config_dma()
304 ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_config_dma()
306 sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2); in sdhci_config_dma()
307 } else if (host->flags & SDHCI_USE_ADMA) { in sdhci_config_dma()
317 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_config_dma()
320 static void sdhci_init(struct sdhci_host *host, int soft) in sdhci_init() argument
322 struct mmc_host *mmc = host->mmc; in sdhci_init()
326 sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA); in sdhci_init()
328 sdhci_do_reset(host, SDHCI_RESET_ALL); in sdhci_init()
330 if (host->v4_mode) in sdhci_init()
331 sdhci_do_enable_v4_mode(host); in sdhci_init()
333 spin_lock_irqsave(&host->lock, flags); in sdhci_init()
334 sdhci_set_default_irqs(host); 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()
346 static void sdhci_reinit(struct sdhci_host *host) in sdhci_reinit() argument
348 u32 cd = host->ier & (SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT); in sdhci_reinit()
350 sdhci_init(host, 0); in sdhci_reinit()
351 sdhci_enable_card_detection(host); in sdhci_reinit()
356 * been missed while the host controller was being reset, so trigger a in sdhci_reinit()
359 if (cd != (host->ier & (SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT))) in sdhci_reinit()
360 mmc_detect_change(host->mmc, msecs_to_jiffies(200)); in sdhci_reinit()
363 static void __sdhci_led_activate(struct sdhci_host *host) in __sdhci_led_activate() argument
367 if (host->quirks & SDHCI_QUIRK_NO_LED) in __sdhci_led_activate()
370 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in __sdhci_led_activate()
372 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in __sdhci_led_activate()
375 static void __sdhci_led_deactivate(struct sdhci_host *host) in __sdhci_led_deactivate() argument
379 if (host->quirks & SDHCI_QUIRK_NO_LED) in __sdhci_led_deactivate()
382 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in __sdhci_led_deactivate()
384 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in __sdhci_led_deactivate()
391 struct sdhci_host *host = container_of(led, struct sdhci_host, led); in sdhci_led_control() local
394 spin_lock_irqsave(&host->lock, flags); in sdhci_led_control()
396 if (host->runtime_suspended) in sdhci_led_control()
400 __sdhci_led_deactivate(host); in sdhci_led_control()
402 __sdhci_led_activate(host); in sdhci_led_control()
404 spin_unlock_irqrestore(&host->lock, flags); in sdhci_led_control()
407 static int sdhci_led_register(struct sdhci_host *host) in sdhci_led_register() argument
409 struct mmc_host *mmc = host->mmc; in sdhci_led_register()
411 if (host->quirks & SDHCI_QUIRK_NO_LED) in sdhci_led_register()
414 snprintf(host->led_name, sizeof(host->led_name), in sdhci_led_register()
417 host->led.name = host->led_name; in sdhci_led_register()
418 host->led.brightness = LED_OFF; in sdhci_led_register()
419 host->led.default_trigger = mmc_hostname(mmc); in sdhci_led_register()
420 host->led.brightness_set = sdhci_led_control; in sdhci_led_register()
422 return led_classdev_register(mmc_dev(mmc), &host->led); in sdhci_led_register()
425 static void sdhci_led_unregister(struct sdhci_host *host) in sdhci_led_unregister() argument
427 if (host->quirks & SDHCI_QUIRK_NO_LED) in sdhci_led_unregister()
430 led_classdev_unregister(&host->led); in sdhci_led_unregister()
433 static inline void sdhci_led_activate(struct sdhci_host *host) in sdhci_led_activate() argument
437 static inline void sdhci_led_deactivate(struct sdhci_host *host) in sdhci_led_deactivate() argument
443 static inline int sdhci_led_register(struct sdhci_host *host) in sdhci_led_register() argument
448 static inline void sdhci_led_unregister(struct sdhci_host *host) in sdhci_led_unregister() argument
452 static inline void sdhci_led_activate(struct sdhci_host *host) in sdhci_led_activate() argument
454 __sdhci_led_activate(host); in sdhci_led_activate()
457 static inline void sdhci_led_deactivate(struct sdhci_host *host) in sdhci_led_deactivate() argument
459 __sdhci_led_deactivate(host); in sdhci_led_deactivate()
464 static void sdhci_mod_timer(struct sdhci_host *host, struct mmc_request *mrq, in sdhci_mod_timer() argument
468 mod_timer(&host->data_timer, timeout); in sdhci_mod_timer()
470 mod_timer(&host->timer, timeout); in sdhci_mod_timer()
473 static void sdhci_del_timer(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_del_timer() argument
476 del_timer(&host->data_timer); in sdhci_del_timer()
478 del_timer(&host->timer); in sdhci_del_timer()
481 static inline bool sdhci_has_requests(struct sdhci_host *host) in sdhci_has_requests() argument
483 return host->cmd || host->data_cmd; in sdhci_has_requests()
492 static void sdhci_read_block_pio(struct sdhci_host *host) in sdhci_read_block_pio() argument
501 blksize = host->data->blksz; in sdhci_read_block_pio()
507 BUG_ON(!sg_miter_next(&host->sg_miter)); in sdhci_read_block_pio()
509 len = min(host->sg_miter.length, blksize); in sdhci_read_block_pio()
512 host->sg_miter.consumed = len; in sdhci_read_block_pio()
514 buf = host->sg_miter.addr; in sdhci_read_block_pio()
518 scratch = sdhci_readl(host, SDHCI_BUFFER); in sdhci_read_block_pio()
531 sg_miter_stop(&host->sg_miter); in sdhci_read_block_pio()
536 static void sdhci_write_block_pio(struct sdhci_host *host) in sdhci_write_block_pio() argument
545 blksize = host->data->blksz; in sdhci_write_block_pio()
552 BUG_ON(!sg_miter_next(&host->sg_miter)); in sdhci_write_block_pio()
554 len = min(host->sg_miter.length, blksize); in sdhci_write_block_pio()
557 host->sg_miter.consumed = len; in sdhci_write_block_pio()
559 buf = host->sg_miter.addr; in sdhci_write_block_pio()
569 sdhci_writel(host, scratch, SDHCI_BUFFER); in sdhci_write_block_pio()
576 sg_miter_stop(&host->sg_miter); in sdhci_write_block_pio()
581 static void sdhci_transfer_pio(struct sdhci_host *host) in sdhci_transfer_pio() argument
585 if (host->blocks == 0) in sdhci_transfer_pio()
588 if (host->data->flags & MMC_DATA_READ) in sdhci_transfer_pio()
598 if ((host->quirks & SDHCI_QUIRK_BROKEN_SMALL_PIO) && in sdhci_transfer_pio()
599 (host->data->blocks == 1)) in sdhci_transfer_pio()
602 while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) { in sdhci_transfer_pio()
603 if (host->quirks & SDHCI_QUIRK_PIO_NEEDS_DELAY) in sdhci_transfer_pio()
606 if (host->data->flags & MMC_DATA_READ) in sdhci_transfer_pio()
607 sdhci_read_block_pio(host); in sdhci_transfer_pio()
609 sdhci_write_block_pio(host); in sdhci_transfer_pio()
611 host->blocks--; in sdhci_transfer_pio()
612 if (host->blocks == 0) in sdhci_transfer_pio()
619 static int sdhci_pre_dma_transfer(struct sdhci_host *host, in sdhci_pre_dma_transfer() argument
632 if (host->bounce_buffer) { in sdhci_pre_dma_transfer()
635 if (length > host->bounce_buffer_size) { in sdhci_pre_dma_transfer()
637 mmc_hostname(host->mmc), length, in sdhci_pre_dma_transfer()
638 host->bounce_buffer_size); in sdhci_pre_dma_transfer()
643 if (host->ops->copy_to_bounce_buffer) { in sdhci_pre_dma_transfer()
644 host->ops->copy_to_bounce_buffer(host, in sdhci_pre_dma_transfer()
648 host->bounce_buffer, length); in sdhci_pre_dma_transfer()
652 dma_sync_single_for_device(host->mmc->parent, in sdhci_pre_dma_transfer()
653 host->bounce_addr, in sdhci_pre_dma_transfer()
654 host->bounce_buffer_size, in sdhci_pre_dma_transfer()
660 sg_count = dma_map_sg(mmc_dev(host->mmc), in sdhci_pre_dma_transfer()
686 void sdhci_adma_write_desc(struct sdhci_host *host, void **desc, in sdhci_adma_write_desc() argument
696 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_adma_write_desc()
699 *desc += host->desc_sz; in sdhci_adma_write_desc()
703 static inline void __sdhci_adma_write_desc(struct sdhci_host *host, in __sdhci_adma_write_desc() argument
707 if (host->ops->adma_write_desc) in __sdhci_adma_write_desc()
708 host->ops->adma_write_desc(host, desc, addr, len, cmd); in __sdhci_adma_write_desc()
710 sdhci_adma_write_desc(host, desc, addr, len, cmd); in __sdhci_adma_write_desc()
721 static void sdhci_adma_table_pre(struct sdhci_host *host, in sdhci_adma_table_pre() argument
736 host->sg_count = sg_count; in sdhci_adma_table_pre()
738 desc = host->adma_table; in sdhci_adma_table_pre()
739 align = host->align_buffer; in sdhci_adma_table_pre()
741 align_addr = host->align_addr; in sdhci_adma_table_pre()
743 for_each_sg(data->sg, sg, host->sg_count, i) { in sdhci_adma_table_pre()
763 __sdhci_adma_write_desc(host, &desc, align_addr, in sdhci_adma_table_pre()
779 __sdhci_adma_write_desc(host, &desc, addr, len, in sdhci_adma_table_pre()
786 WARN_ON((desc - host->adma_table) >= host->adma_table_sz); in sdhci_adma_table_pre()
789 if (host->quirks & SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC) { in sdhci_adma_table_pre()
791 if (desc != host->adma_table) { in sdhci_adma_table_pre()
792 desc -= host->desc_sz; in sdhci_adma_table_pre()
797 __sdhci_adma_write_desc(host, &desc, 0, 0, ADMA2_NOP_END_VALID); in sdhci_adma_table_pre()
801 static void sdhci_adma_table_post(struct sdhci_host *host, in sdhci_adma_table_post() argument
814 for_each_sg(data->sg, sg, host->sg_count, i) in sdhci_adma_table_post()
821 dma_sync_sg_for_cpu(mmc_dev(host->mmc), data->sg, in sdhci_adma_table_post()
824 align = host->align_buffer; in sdhci_adma_table_post()
826 for_each_sg(data->sg, sg, host->sg_count, i) { in sdhci_adma_table_post()
842 static void sdhci_set_adma_addr(struct sdhci_host *host, dma_addr_t addr) in sdhci_set_adma_addr() argument
844 sdhci_writel(host, lower_32_bits(addr), SDHCI_ADMA_ADDRESS); in sdhci_set_adma_addr()
845 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_set_adma_addr()
846 sdhci_writel(host, upper_32_bits(addr), SDHCI_ADMA_ADDRESS_HI); in sdhci_set_adma_addr()
849 static dma_addr_t sdhci_sdma_address(struct sdhci_host *host) in sdhci_sdma_address() argument
851 if (host->bounce_buffer) in sdhci_sdma_address()
852 return host->bounce_addr; in sdhci_sdma_address()
854 return sg_dma_address(host->data->sg); in sdhci_sdma_address()
857 static void sdhci_set_sdma_addr(struct sdhci_host *host, dma_addr_t addr) in sdhci_set_sdma_addr() argument
859 if (host->v4_mode) in sdhci_set_sdma_addr()
860 sdhci_set_adma_addr(host, addr); in sdhci_set_sdma_addr()
862 sdhci_writel(host, addr, SDHCI_DMA_ADDRESS); in sdhci_set_sdma_addr()
865 static unsigned int sdhci_target_timeout(struct sdhci_host *host, in sdhci_target_timeout() argument
876 if (host->clock && data->timeout_clks) { in sdhci_target_timeout()
881 * host->clock is in Hz. target_timeout is in us. in sdhci_target_timeout()
885 if (do_div(val, host->clock)) in sdhci_target_timeout()
894 static void sdhci_calc_sw_timeout(struct sdhci_host *host, in sdhci_calc_sw_timeout() argument
898 struct mmc_host *mmc = host->mmc; in sdhci_calc_sw_timeout()
906 target_timeout = sdhci_target_timeout(host, cmd, data); in sdhci_calc_sw_timeout()
911 freq = host->mmc->actual_clock ? : host->clock; in sdhci_calc_sw_timeout()
917 host->data_timeout = data->blocks * target_timeout + in sdhci_calc_sw_timeout()
920 host->data_timeout = target_timeout; in sdhci_calc_sw_timeout()
923 if (host->data_timeout) in sdhci_calc_sw_timeout()
924 host->data_timeout += MMC_CMD_TRANSFER_TIME; in sdhci_calc_sw_timeout()
927 static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd, in sdhci_calc_timeout() argument
937 * If the host controller provides us with an incorrect timeout in sdhci_calc_timeout()
942 if (host->quirks & SDHCI_QUIRK_BROKEN_TIMEOUT_VAL) in sdhci_calc_timeout()
955 target_timeout = sdhci_target_timeout(host, cmd, data); in sdhci_calc_timeout()
963 * (2) host->timeout_clk < 2^16 in sdhci_calc_timeout()
968 current_timeout = (1 << 13) * 1000 / host->timeout_clk; in sdhci_calc_timeout()
977 if (!(host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT)) in sdhci_calc_timeout()
988 static void sdhci_set_transfer_irqs(struct sdhci_host *host) in sdhci_set_transfer_irqs() argument
993 if (host->flags & SDHCI_REQ_USE_DMA) in sdhci_set_transfer_irqs()
994 host->ier = (host->ier & ~pio_irqs) | dma_irqs; in sdhci_set_transfer_irqs()
996 host->ier = (host->ier & ~dma_irqs) | pio_irqs; in sdhci_set_transfer_irqs()
998 if (host->flags & (SDHCI_AUTO_CMD23 | SDHCI_AUTO_CMD12)) in sdhci_set_transfer_irqs()
999 host->ier |= SDHCI_INT_AUTO_CMD_ERR; in sdhci_set_transfer_irqs()
1001 host->ier &= ~SDHCI_INT_AUTO_CMD_ERR; in sdhci_set_transfer_irqs()
1003 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_transfer_irqs()
1004 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_transfer_irqs()
1007 void sdhci_set_data_timeout_irq(struct sdhci_host *host, bool enable) in sdhci_set_data_timeout_irq() argument
1010 host->ier |= SDHCI_INT_DATA_TIMEOUT; in sdhci_set_data_timeout_irq()
1012 host->ier &= ~SDHCI_INT_DATA_TIMEOUT; in sdhci_set_data_timeout_irq()
1013 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_data_timeout_irq()
1014 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_data_timeout_irq()
1018 void __sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) in __sdhci_set_timeout() argument
1021 u8 count = sdhci_calc_timeout(host, cmd, &too_big); in __sdhci_set_timeout()
1024 host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT) { in __sdhci_set_timeout()
1025 sdhci_calc_sw_timeout(host, cmd); in __sdhci_set_timeout()
1026 sdhci_set_data_timeout_irq(host, false); in __sdhci_set_timeout()
1027 } else if (!(host->ier & SDHCI_INT_DATA_TIMEOUT)) { in __sdhci_set_timeout()
1028 sdhci_set_data_timeout_irq(host, true); in __sdhci_set_timeout()
1031 sdhci_writeb(host, count, SDHCI_TIMEOUT_CONTROL); in __sdhci_set_timeout()
1035 static void sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_set_timeout() argument
1037 if (host->ops->set_timeout) in sdhci_set_timeout()
1038 host->ops->set_timeout(host, cmd); in sdhci_set_timeout()
1040 __sdhci_set_timeout(host, cmd); in sdhci_set_timeout()
1043 static void sdhci_initialize_data(struct sdhci_host *host, in sdhci_initialize_data() argument
1046 WARN_ON(host->data); in sdhci_initialize_data()
1050 BUG_ON(data->blksz > host->mmc->max_blk_size); in sdhci_initialize_data()
1053 host->data = data; in sdhci_initialize_data()
1054 host->data_early = 0; in sdhci_initialize_data()
1055 host->data->bytes_xfered = 0; in sdhci_initialize_data()
1058 static inline void sdhci_set_block_info(struct sdhci_host *host, in sdhci_set_block_info() argument
1062 sdhci_writew(host, in sdhci_set_block_info()
1063 SDHCI_MAKE_BLKSZ(host->sdma_boundary, data->blksz), in sdhci_set_block_info()
1069 if (host->version >= SDHCI_SPEC_410 && host->v4_mode && in sdhci_set_block_info()
1070 (host->quirks2 & SDHCI_QUIRK2_USE_32BIT_BLK_CNT)) { in sdhci_set_block_info()
1071 if (sdhci_readw(host, SDHCI_BLOCK_COUNT)) in sdhci_set_block_info()
1072 sdhci_writew(host, 0, SDHCI_BLOCK_COUNT); in sdhci_set_block_info()
1073 sdhci_writew(host, data->blocks, SDHCI_32BIT_BLK_CNT); in sdhci_set_block_info()
1075 sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT); in sdhci_set_block_info()
1079 static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_prepare_data() argument
1083 sdhci_initialize_data(host, data); in sdhci_prepare_data()
1085 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_prepare_data()
1090 host->flags |= SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1101 if (host->flags & SDHCI_USE_ADMA) { in sdhci_prepare_data()
1102 if (host->quirks & SDHCI_QUIRK_32BIT_ADMA_SIZE) { in sdhci_prepare_data()
1112 if (host->quirks & SDHCI_QUIRK_32BIT_DMA_SIZE) in sdhci_prepare_data()
1114 if (host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) in sdhci_prepare_data()
1123 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1128 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1135 if (host->flags & SDHCI_REQ_USE_DMA) { in sdhci_prepare_data()
1136 int sg_cnt = sdhci_pre_dma_transfer(host, data, COOKIE_MAPPED); in sdhci_prepare_data()
1144 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1145 } else if (host->flags & SDHCI_USE_ADMA) { in sdhci_prepare_data()
1146 sdhci_adma_table_pre(host, data, sg_cnt); in sdhci_prepare_data()
1147 sdhci_set_adma_addr(host, host->adma_addr); in sdhci_prepare_data()
1150 sdhci_set_sdma_addr(host, sdhci_sdma_address(host)); in sdhci_prepare_data()
1154 sdhci_config_dma(host); in sdhci_prepare_data()
1156 if (!(host->flags & SDHCI_REQ_USE_DMA)) { in sdhci_prepare_data()
1160 if (host->data->flags & MMC_DATA_READ) in sdhci_prepare_data()
1164 sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); in sdhci_prepare_data()
1165 host->blocks = data->blocks; in sdhci_prepare_data()
1168 sdhci_set_transfer_irqs(host); in sdhci_prepare_data()
1170 sdhci_set_block_info(host, data); in sdhci_prepare_data()
1175 static int sdhci_external_dma_init(struct sdhci_host *host) in sdhci_external_dma_init() argument
1178 struct mmc_host *mmc = host->mmc; in sdhci_external_dma_init()
1180 host->tx_chan = dma_request_chan(mmc->parent, "tx"); in sdhci_external_dma_init()
1181 if (IS_ERR(host->tx_chan)) { in sdhci_external_dma_init()
1182 ret = PTR_ERR(host->tx_chan); in sdhci_external_dma_init()
1185 host->tx_chan = NULL; in sdhci_external_dma_init()
1189 host->rx_chan = dma_request_chan(mmc->parent, "rx"); in sdhci_external_dma_init()
1190 if (IS_ERR(host->rx_chan)) { in sdhci_external_dma_init()
1191 if (host->tx_chan) { in sdhci_external_dma_init()
1192 dma_release_channel(host->tx_chan); in sdhci_external_dma_init()
1193 host->tx_chan = NULL; in sdhci_external_dma_init()
1196 ret = PTR_ERR(host->rx_chan); in sdhci_external_dma_init()
1199 host->rx_chan = NULL; in sdhci_external_dma_init()
1205 static struct dma_chan *sdhci_external_dma_channel(struct sdhci_host *host, in sdhci_external_dma_channel() argument
1208 return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan; in sdhci_external_dma_channel()
1211 static int sdhci_external_dma_setup(struct sdhci_host *host, in sdhci_external_dma_setup() argument
1223 if (!host->mapbase) in sdhci_external_dma_setup()
1226 cfg.src_addr = host->mapbase + SDHCI_BUFFER; in sdhci_external_dma_setup()
1227 cfg.dst_addr = host->mapbase + SDHCI_BUFFER; in sdhci_external_dma_setup()
1239 chan = sdhci_external_dma_channel(host, data); in sdhci_external_dma_setup()
1245 sg_cnt = sdhci_pre_dma_transfer(host, data, COOKIE_MAPPED); in sdhci_external_dma_setup()
1265 static void sdhci_external_dma_release(struct sdhci_host *host) in sdhci_external_dma_release() argument
1267 if (host->tx_chan) { in sdhci_external_dma_release()
1268 dma_release_channel(host->tx_chan); in sdhci_external_dma_release()
1269 host->tx_chan = NULL; in sdhci_external_dma_release()
1272 if (host->rx_chan) { in sdhci_external_dma_release()
1273 dma_release_channel(host->rx_chan); in sdhci_external_dma_release()
1274 host->rx_chan = NULL; in sdhci_external_dma_release()
1277 sdhci_switch_external_dma(host, false); in sdhci_external_dma_release()
1280 static void __sdhci_external_dma_prepare_data(struct sdhci_host *host, in __sdhci_external_dma_prepare_data() argument
1285 sdhci_initialize_data(host, data); in __sdhci_external_dma_prepare_data()
1287 host->flags |= SDHCI_REQ_USE_DMA; in __sdhci_external_dma_prepare_data()
1288 sdhci_set_transfer_irqs(host); in __sdhci_external_dma_prepare_data()
1290 sdhci_set_block_info(host, data); in __sdhci_external_dma_prepare_data()
1293 static void sdhci_external_dma_prepare_data(struct sdhci_host *host, in sdhci_external_dma_prepare_data() argument
1296 if (!sdhci_external_dma_setup(host, cmd)) { in sdhci_external_dma_prepare_data()
1297 __sdhci_external_dma_prepare_data(host, cmd); in sdhci_external_dma_prepare_data()
1299 sdhci_external_dma_release(host); in sdhci_external_dma_prepare_data()
1301 mmc_hostname(host->mmc)); in sdhci_external_dma_prepare_data()
1302 sdhci_prepare_data(host, cmd); in sdhci_external_dma_prepare_data()
1306 static void sdhci_external_dma_pre_transfer(struct sdhci_host *host, in sdhci_external_dma_pre_transfer() argument
1314 chan = sdhci_external_dma_channel(host, cmd->data); in sdhci_external_dma_pre_transfer()
1321 static inline int sdhci_external_dma_init(struct sdhci_host *host) in sdhci_external_dma_init() argument
1326 static inline void sdhci_external_dma_release(struct sdhci_host *host) in sdhci_external_dma_release() argument
1330 static inline void sdhci_external_dma_prepare_data(struct sdhci_host *host, in sdhci_external_dma_prepare_data() argument
1337 static inline void sdhci_external_dma_pre_transfer(struct sdhci_host *host, in sdhci_external_dma_pre_transfer() argument
1342 static inline struct dma_chan *sdhci_external_dma_channel(struct sdhci_host *host, in sdhci_external_dma_channel() argument
1350 void sdhci_switch_external_dma(struct sdhci_host *host, bool en) in sdhci_switch_external_dma() argument
1352 host->use_external_dma = en; in sdhci_switch_external_dma()
1356 static inline bool sdhci_auto_cmd12(struct sdhci_host *host, in sdhci_auto_cmd12() argument
1359 return !mrq->sbc && (host->flags & SDHCI_AUTO_CMD12) && in sdhci_auto_cmd12()
1363 static inline bool sdhci_auto_cmd23(struct sdhci_host *host, in sdhci_auto_cmd23() argument
1366 return mrq->sbc && (host->flags & SDHCI_AUTO_CMD23); in sdhci_auto_cmd23()
1369 static inline bool sdhci_manual_cmd23(struct sdhci_host *host, in sdhci_manual_cmd23() argument
1372 return mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23); in sdhci_manual_cmd23()
1375 static inline void sdhci_auto_cmd_select(struct sdhci_host *host, in sdhci_auto_cmd_select() argument
1379 bool use_cmd12 = sdhci_auto_cmd12(host, cmd->mrq) && in sdhci_auto_cmd_select()
1381 bool use_cmd23 = sdhci_auto_cmd23(host, cmd->mrq); in sdhci_auto_cmd_select()
1390 if (host->version >= SDHCI_SPEC_410 && host->v4_mode && in sdhci_auto_cmd_select()
1394 ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_auto_cmd_select()
1399 sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2); in sdhci_auto_cmd_select()
1414 static void sdhci_set_transfer_mode(struct sdhci_host *host, in sdhci_set_transfer_mode() argument
1421 if (host->quirks2 & in sdhci_set_transfer_mode()
1425 sdhci_writew(host, 0x0, SDHCI_TRANSFER_MODE); in sdhci_set_transfer_mode()
1428 mode = sdhci_readw(host, SDHCI_TRANSFER_MODE); in sdhci_set_transfer_mode()
1429 sdhci_writew(host, mode & ~(SDHCI_TRNS_AUTO_CMD12 | in sdhci_set_transfer_mode()
1435 WARN_ON(!host->data); in sdhci_set_transfer_mode()
1437 if (!(host->quirks2 & SDHCI_QUIRK2_SUPPORT_SINGLE)) in sdhci_set_transfer_mode()
1442 sdhci_auto_cmd_select(host, cmd, &mode); in sdhci_set_transfer_mode()
1443 if (sdhci_auto_cmd23(host, cmd->mrq)) in sdhci_set_transfer_mode()
1444 sdhci_writel(host, cmd->mrq->sbc->arg, SDHCI_ARGUMENT2); in sdhci_set_transfer_mode()
1449 if (host->flags & SDHCI_REQ_USE_DMA) in sdhci_set_transfer_mode()
1452 sdhci_writew(host, mode, SDHCI_TRANSFER_MODE); in sdhci_set_transfer_mode()
1455 static bool sdhci_needs_reset(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_needs_reset() argument
1457 return (!(host->flags & SDHCI_DEVICE_DEAD) && in sdhci_needs_reset()
1461 (host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST))); in sdhci_needs_reset()
1464 static void sdhci_set_mrq_done(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_set_mrq_done() argument
1469 if (host->mrqs_done[i] == mrq) { in sdhci_set_mrq_done()
1476 if (!host->mrqs_done[i]) { in sdhci_set_mrq_done()
1477 host->mrqs_done[i] = mrq; in sdhci_set_mrq_done()
1485 static void __sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq) in __sdhci_finish_mrq() argument
1487 if (host->cmd && host->cmd->mrq == mrq) in __sdhci_finish_mrq()
1488 host->cmd = NULL; in __sdhci_finish_mrq()
1490 if (host->data_cmd && host->data_cmd->mrq == mrq) in __sdhci_finish_mrq()
1491 host->data_cmd = NULL; in __sdhci_finish_mrq()
1493 if (host->deferred_cmd && host->deferred_cmd->mrq == mrq) in __sdhci_finish_mrq()
1494 host->deferred_cmd = NULL; in __sdhci_finish_mrq()
1496 if (host->data && host->data->mrq == mrq) in __sdhci_finish_mrq()
1497 host->data = NULL; in __sdhci_finish_mrq()
1499 if (sdhci_needs_reset(host, mrq)) in __sdhci_finish_mrq()
1500 host->pending_reset = true; in __sdhci_finish_mrq()
1502 sdhci_set_mrq_done(host, mrq); in __sdhci_finish_mrq()
1504 sdhci_del_timer(host, mrq); in __sdhci_finish_mrq()
1506 if (!sdhci_has_requests(host)) in __sdhci_finish_mrq()
1507 sdhci_led_deactivate(host); in __sdhci_finish_mrq()
1510 static void sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_finish_mrq() argument
1512 __sdhci_finish_mrq(host, mrq); in sdhci_finish_mrq()
1514 queue_work(host->complete_wq, &host->complete_work); in sdhci_finish_mrq()
1517 static void __sdhci_finish_data(struct sdhci_host *host, bool sw_data_timeout) in __sdhci_finish_data() argument
1519 struct mmc_command *data_cmd = host->data_cmd; in __sdhci_finish_data()
1520 struct mmc_data *data = host->data; in __sdhci_finish_data()
1522 host->data = NULL; in __sdhci_finish_data()
1523 host->data_cmd = NULL; in __sdhci_finish_data()
1530 if (!host->cmd || host->cmd == data_cmd) in __sdhci_finish_data()
1531 sdhci_do_reset(host, SDHCI_RESET_CMD); in __sdhci_finish_data()
1532 sdhci_do_reset(host, SDHCI_RESET_DATA); in __sdhci_finish_data()
1535 if ((host->flags & (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA)) == in __sdhci_finish_data()
1537 sdhci_adma_table_post(host, data); in __sdhci_finish_data()
1557 ((!data->mrq->sbc && !sdhci_auto_cmd12(host, data->mrq)) || in __sdhci_finish_data()
1565 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1568 host->cmd = NULL; in __sdhci_finish_data()
1569 if (!sdhci_send_command(host, data->stop)) { in __sdhci_finish_data()
1576 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1578 WARN_ON(host->deferred_cmd); in __sdhci_finish_data()
1579 host->deferred_cmd = data->stop; in __sdhci_finish_data()
1584 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1588 static void sdhci_finish_data(struct sdhci_host *host) in sdhci_finish_data() argument
1590 __sdhci_finish_data(host, false); in sdhci_finish_data()
1593 static bool sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_send_command() argument
1599 WARN_ON(host->cmd); in sdhci_send_command()
1604 if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) && in sdhci_send_command()
1617 if (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) in sdhci_send_command()
1620 host->cmd = cmd; in sdhci_send_command()
1621 host->data_timeout = 0; in sdhci_send_command()
1623 WARN_ON(host->data_cmd); in sdhci_send_command()
1624 host->data_cmd = cmd; in sdhci_send_command()
1625 sdhci_set_timeout(host, cmd); in sdhci_send_command()
1629 if (host->use_external_dma) in sdhci_send_command()
1630 sdhci_external_dma_prepare_data(host, cmd); in sdhci_send_command()
1632 sdhci_prepare_data(host, cmd); in sdhci_send_command()
1635 sdhci_writel(host, cmd->arg, SDHCI_ARGUMENT); in sdhci_send_command()
1637 sdhci_set_transfer_mode(host, cmd); in sdhci_send_command()
1669 if (host->data_timeout) in sdhci_send_command()
1670 timeout += nsecs_to_jiffies(host->data_timeout); in sdhci_send_command()
1675 sdhci_mod_timer(host, cmd->mrq, timeout); in sdhci_send_command()
1677 if (host->use_external_dma) in sdhci_send_command()
1678 sdhci_external_dma_pre_transfer(host, cmd); in sdhci_send_command()
1680 sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND); in sdhci_send_command()
1685 static bool sdhci_present_error(struct sdhci_host *host, in sdhci_present_error() argument
1688 if (!present || host->flags & SDHCI_DEVICE_DEAD) { in sdhci_present_error()
1696 static bool sdhci_send_command_retry(struct sdhci_host *host, in sdhci_send_command_retry() argument
1699 __releases(host->lock) in sdhci_send_command_retry()
1700 __acquires(host->lock) in sdhci_send_command_retry()
1702 struct mmc_command *deferred_cmd = host->deferred_cmd; in sdhci_send_command_retry()
1706 while (!sdhci_send_command(host, cmd)) { in sdhci_send_command_retry()
1709 mmc_hostname(host->mmc)); in sdhci_send_command_retry()
1710 sdhci_dumpregs(host); in sdhci_send_command_retry()
1715 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_command_retry()
1719 present = host->mmc->ops->get_cd(host->mmc); in sdhci_send_command_retry()
1721 spin_lock_irqsave(&host->lock, flags); in sdhci_send_command_retry()
1724 if (cmd == deferred_cmd && cmd != host->deferred_cmd) in sdhci_send_command_retry()
1727 if (sdhci_present_error(host, cmd, present)) in sdhci_send_command_retry()
1731 if (cmd == host->deferred_cmd) in sdhci_send_command_retry()
1732 host->deferred_cmd = NULL; in sdhci_send_command_retry()
1737 static void sdhci_read_rsp_136(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_read_rsp_136() argument
1743 cmd->resp[i] = sdhci_readl(host, reg); in sdhci_read_rsp_136()
1746 if (host->quirks2 & SDHCI_QUIRK2_RSP_136_HAS_CRC) in sdhci_read_rsp_136()
1757 static void sdhci_finish_command(struct sdhci_host *host) in sdhci_finish_command() argument
1759 struct mmc_command *cmd = host->cmd; in sdhci_finish_command()
1761 host->cmd = NULL; in sdhci_finish_command()
1765 sdhci_read_rsp_136(host, cmd); in sdhci_finish_command()
1767 cmd->resp[0] = sdhci_readl(host, SDHCI_RESPONSE); in sdhci_finish_command()
1772 mmc_command_done(host->mmc, cmd->mrq); in sdhci_finish_command()
1775 * The host can send and interrupt when the busy state has in sdhci_finish_command()
1787 } else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ) && in sdhci_finish_command()
1788 cmd == host->data_cmd) { in sdhci_finish_command()
1796 if (!sdhci_send_command(host, cmd->mrq->cmd)) { in sdhci_finish_command()
1797 WARN_ON(host->deferred_cmd); in sdhci_finish_command()
1798 host->deferred_cmd = cmd->mrq->cmd; in sdhci_finish_command()
1803 if (host->data && host->data_early) in sdhci_finish_command()
1804 sdhci_finish_data(host); in sdhci_finish_command()
1807 __sdhci_finish_mrq(host, cmd->mrq); in sdhci_finish_command()
1811 static u16 sdhci_get_preset_value(struct sdhci_host *host) in sdhci_get_preset_value() argument
1815 switch (host->timing) { in sdhci_get_preset_value()
1817 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR12); in sdhci_get_preset_value()
1820 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR25); in sdhci_get_preset_value()
1823 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR50); in sdhci_get_preset_value()
1827 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR104); in sdhci_get_preset_value()
1831 preset = sdhci_readw(host, SDHCI_PRESET_FOR_DDR50); in sdhci_get_preset_value()
1834 preset = sdhci_readw(host, SDHCI_PRESET_FOR_HS400); in sdhci_get_preset_value()
1838 mmc_hostname(host->mmc)); in sdhci_get_preset_value()
1839 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR12); in sdhci_get_preset_value()
1845 u16 sdhci_calc_clk(struct sdhci_host *host, unsigned int clock, in sdhci_calc_clk() argument
1853 if (host->version >= SDHCI_SPEC_300) { in sdhci_calc_clk()
1854 if (host->preset_enabled) { in sdhci_calc_clk()
1857 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_calc_clk()
1858 pre_val = sdhci_get_preset_value(host); in sdhci_calc_clk()
1860 if (host->clk_mul && in sdhci_calc_clk()
1864 clk_mul = host->clk_mul; in sdhci_calc_clk()
1872 * Check if the Host Controller supports Programmable Clock in sdhci_calc_clk()
1875 if (host->clk_mul) { in sdhci_calc_clk()
1877 if ((host->max_clk * host->clk_mul / div) in sdhci_calc_clk()
1881 if ((host->max_clk * host->clk_mul / div) <= clock) { in sdhci_calc_clk()
1888 clk_mul = host->clk_mul; in sdhci_calc_clk()
1899 if (!host->clk_mul || switch_base_clk) { in sdhci_calc_clk()
1901 if (host->max_clk <= clock) in sdhci_calc_clk()
1906 if ((host->max_clk / div) <= clock) in sdhci_calc_clk()
1912 if ((host->quirks2 & SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN) in sdhci_calc_clk()
1913 && !div && host->max_clk <= 25000000) in sdhci_calc_clk()
1919 if ((host->max_clk / div) <= clock) in sdhci_calc_clk()
1928 *actual_clock = (host->max_clk * clk_mul) / real_div; in sdhci_calc_clk()
1937 void sdhci_enable_clk(struct sdhci_host *host, u16 clk) in sdhci_enable_clk() argument
1942 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1949 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1954 mmc_hostname(host->mmc)); in sdhci_enable_clk()
1955 sdhci_dumpregs(host); in sdhci_enable_clk()
1961 if (host->version >= SDHCI_SPEC_410 && host->v4_mode) { in sdhci_enable_clk()
1964 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1971 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1976 mmc_hostname(host->mmc)); in sdhci_enable_clk()
1977 sdhci_dumpregs(host); in sdhci_enable_clk()
1985 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1989 void sdhci_set_clock(struct sdhci_host *host, unsigned int clock) in sdhci_set_clock() argument
1993 host->mmc->actual_clock = 0; in sdhci_set_clock()
1995 sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL); in sdhci_set_clock()
2000 clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock); in sdhci_set_clock()
2001 sdhci_enable_clk(host, clk); in sdhci_set_clock()
2005 static void sdhci_set_power_reg(struct sdhci_host *host, unsigned char mode, in sdhci_set_power_reg() argument
2008 struct mmc_host *mmc = host->mmc; in sdhci_set_power_reg()
2013 sdhci_writeb(host, SDHCI_POWER_ON, SDHCI_POWER_CONTROL); in sdhci_set_power_reg()
2015 sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); in sdhci_set_power_reg()
2018 void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode, in sdhci_set_power_noreg() argument
2045 mmc_hostname(host->mmc), vdd); in sdhci_set_power_noreg()
2050 if (host->pwr == pwr) in sdhci_set_power_noreg()
2053 host->pwr = pwr; in sdhci_set_power_noreg()
2056 sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2057 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_set_power_noreg()
2058 sdhci_runtime_pm_bus_off(host); in sdhci_set_power_noreg()
2064 if (!(host->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE)) in sdhci_set_power_noreg()
2065 sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2072 if (host->quirks & SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER) in sdhci_set_power_noreg()
2073 sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2077 sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2079 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_set_power_noreg()
2080 sdhci_runtime_pm_bus_on(host); in sdhci_set_power_noreg()
2086 if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER) in sdhci_set_power_noreg()
2092 void sdhci_set_power(struct sdhci_host *host, unsigned char mode, in sdhci_set_power() argument
2095 if (IS_ERR(host->mmc->supply.vmmc)) in sdhci_set_power()
2096 sdhci_set_power_noreg(host, mode, vdd); in sdhci_set_power()
2098 sdhci_set_power_reg(host, mode, vdd); in sdhci_set_power()
2108 void sdhci_set_power_and_bus_voltage(struct sdhci_host *host, in sdhci_set_power_and_bus_voltage() argument
2112 if (!IS_ERR(host->mmc->supply.vmmc)) { in sdhci_set_power_and_bus_voltage()
2113 struct mmc_host *mmc = host->mmc; in sdhci_set_power_and_bus_voltage()
2117 sdhci_set_power_noreg(host, mode, vdd); in sdhci_set_power_and_bus_voltage()
2129 struct sdhci_host *host = mmc_priv(mmc); in sdhci_request() local
2137 spin_lock_irqsave(&host->lock, flags); in sdhci_request()
2139 sdhci_led_activate(host); in sdhci_request()
2141 if (sdhci_present_error(host, mrq->cmd, present)) in sdhci_request()
2144 cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; in sdhci_request()
2146 if (!sdhci_send_command_retry(host, cmd, flags)) in sdhci_request()
2149 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request()
2154 sdhci_finish_mrq(host, mrq); in sdhci_request()
2155 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request()
2161 struct sdhci_host *host = mmc_priv(mmc); in sdhci_request_atomic() local
2166 spin_lock_irqsave(&host->lock, flags); in sdhci_request_atomic()
2168 if (sdhci_present_error(host, mrq->cmd, true)) { in sdhci_request_atomic()
2169 sdhci_finish_mrq(host, mrq); in sdhci_request_atomic()
2173 cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; in sdhci_request_atomic()
2182 if (!sdhci_send_command(host, cmd)) in sdhci_request_atomic()
2185 sdhci_led_activate(host); in sdhci_request_atomic()
2188 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_atomic()
2193 void sdhci_set_bus_width(struct sdhci_host *host, int width) in sdhci_set_bus_width() argument
2197 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in sdhci_set_bus_width()
2202 if (host->mmc->caps & MMC_CAP_8_BIT_DATA) in sdhci_set_bus_width()
2209 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_bus_width()
2213 void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing) in sdhci_set_uhs_signaling() argument
2217 ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_set_uhs_signaling()
2218 /* Select Bus Speed Mode for host */ in sdhci_set_uhs_signaling()
2234 sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2); in sdhci_set_uhs_signaling()
2240 struct sdhci_host *host = mmc_priv(mmc); in sdhci_set_ios() local
2246 if (host->flags & SDHCI_DEVICE_DEAD) { in sdhci_set_ios()
2258 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in sdhci_set_ios()
2259 sdhci_reinit(host); in sdhci_set_ios()
2262 if (host->version >= SDHCI_SPEC_300 && in sdhci_set_ios()
2264 !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) in sdhci_set_ios()
2265 sdhci_enable_preset_value(host, false); in sdhci_set_ios()
2267 if (!ios->clock || ios->clock != host->clock) { in sdhci_set_ios()
2268 host->ops->set_clock(host, ios->clock); in sdhci_set_ios()
2269 host->clock = ios->clock; in sdhci_set_ios()
2271 if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK && in sdhci_set_ios()
2272 host->clock) { in sdhci_set_ios()
2273 host->timeout_clk = host->mmc->actual_clock ? in sdhci_set_ios()
2274 host->mmc->actual_clock / 1000 : in sdhci_set_ios()
2275 host->clock / 1000; in sdhci_set_ios()
2276 host->mmc->max_busy_timeout = in sdhci_set_ios()
2277 host->ops->get_max_timeout_count ? in sdhci_set_ios()
2278 host->ops->get_max_timeout_count(host) : in sdhci_set_ios()
2280 host->mmc->max_busy_timeout /= host->timeout_clk; in sdhci_set_ios()
2284 if (host->ops->set_power) in sdhci_set_ios()
2285 host->ops->set_power(host, ios->power_mode, ios->vdd); in sdhci_set_ios()
2287 sdhci_set_power(host, ios->power_mode, ios->vdd); in sdhci_set_ios()
2289 if (host->ops->platform_send_init_74_clocks) in sdhci_set_ios()
2290 host->ops->platform_send_init_74_clocks(host, ios->power_mode); in sdhci_set_ios()
2292 host->ops->set_bus_width(host, ios->bus_width); in sdhci_set_ios()
2294 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2296 if (!(host->quirks & SDHCI_QUIRK_NO_HISPD_BIT)) { in sdhci_set_ios()
2311 if (host->version >= SDHCI_SPEC_300) { in sdhci_set_ios()
2314 if (!host->preset_enabled) { in sdhci_set_ios()
2315 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2320 ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_set_ios()
2336 sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2); in sdhci_set_ios()
2340 * Enable in the Host Control 2 register is set, we in sdhci_set_ios()
2346 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2348 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2350 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2353 host->ops->set_clock(host, host->clock); in sdhci_set_ios()
2357 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2359 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2361 host->ops->set_uhs_signaling(host, ios->timing); in sdhci_set_ios()
2362 host->timing = ios->timing; in sdhci_set_ios()
2364 if (!(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN) && in sdhci_set_ios()
2373 sdhci_enable_preset_value(host, true); in sdhci_set_ios()
2374 preset = sdhci_get_preset_value(host); in sdhci_set_ios()
2380 host->ops->set_clock(host, host->clock); in sdhci_set_ios()
2382 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2389 if (host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS) in sdhci_set_ios()
2390 sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA); in sdhci_set_ios()
2396 struct sdhci_host *host = mmc_priv(mmc); in sdhci_get_cd() local
2399 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_get_cd()
2403 if (!mmc_card_is_removable(host->mmc)) in sdhci_get_cd()
2414 if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) in sdhci_get_cd()
2417 /* Host native card detect */ in sdhci_get_cd()
2418 return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT); in sdhci_get_cd()
2421 static int sdhci_check_ro(struct sdhci_host *host) in sdhci_check_ro() argument
2426 spin_lock_irqsave(&host->lock, flags); in sdhci_check_ro()
2428 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_check_ro()
2430 else if (host->ops->get_ro) in sdhci_check_ro()
2431 is_readonly = host->ops->get_ro(host); in sdhci_check_ro()
2432 else if (mmc_can_gpio_ro(host->mmc)) in sdhci_check_ro()
2433 is_readonly = mmc_gpio_get_ro(host->mmc); in sdhci_check_ro()
2435 is_readonly = !(sdhci_readl(host, SDHCI_PRESENT_STATE) in sdhci_check_ro()
2438 spin_unlock_irqrestore(&host->lock, flags); in sdhci_check_ro()
2441 return host->quirks & SDHCI_QUIRK_INVERTED_WRITE_PROTECT ? in sdhci_check_ro()
2449 struct sdhci_host *host = mmc_priv(mmc); in sdhci_get_ro() local
2452 if (!(host->quirks & SDHCI_QUIRK_UNSTABLE_RO_DETECT)) in sdhci_get_ro()
2453 return sdhci_check_ro(host); in sdhci_get_ro()
2457 if (sdhci_check_ro(host)) { in sdhci_get_ro()
2468 struct sdhci_host *host = mmc_priv(mmc); in sdhci_hw_reset() local
2470 if (host->ops && host->ops->hw_reset) in sdhci_hw_reset()
2471 host->ops->hw_reset(host); in sdhci_hw_reset()
2474 static void sdhci_enable_sdio_irq_nolock(struct sdhci_host *host, int enable) in sdhci_enable_sdio_irq_nolock() argument
2476 if (!(host->flags & SDHCI_DEVICE_DEAD)) { in sdhci_enable_sdio_irq_nolock()
2478 host->ier |= SDHCI_INT_CARD_INT; in sdhci_enable_sdio_irq_nolock()
2480 host->ier &= ~SDHCI_INT_CARD_INT; in sdhci_enable_sdio_irq_nolock()
2482 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_enable_sdio_irq_nolock()
2483 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_enable_sdio_irq_nolock()
2489 struct sdhci_host *host = mmc_priv(mmc); in sdhci_enable_sdio_irq() local
2493 pm_runtime_get_noresume(host->mmc->parent); in sdhci_enable_sdio_irq()
2495 spin_lock_irqsave(&host->lock, flags); in sdhci_enable_sdio_irq()
2496 sdhci_enable_sdio_irq_nolock(host, enable); in sdhci_enable_sdio_irq()
2497 spin_unlock_irqrestore(&host->lock, flags); in sdhci_enable_sdio_irq()
2500 pm_runtime_put_noidle(host->mmc->parent); in sdhci_enable_sdio_irq()
2506 struct sdhci_host *host = mmc_priv(mmc); in sdhci_ack_sdio_irq() local
2509 spin_lock_irqsave(&host->lock, flags); in sdhci_ack_sdio_irq()
2510 sdhci_enable_sdio_irq_nolock(host, true); in sdhci_ack_sdio_irq()
2511 spin_unlock_irqrestore(&host->lock, flags); in sdhci_ack_sdio_irq()
2517 struct sdhci_host *host = mmc_priv(mmc); in sdhci_start_signal_voltage_switch() local
2522 * Signal Voltage Switching is only applicable for Host Controllers in sdhci_start_signal_voltage_switch()
2525 if (host->version < SDHCI_SPEC_300) in sdhci_start_signal_voltage_switch()
2528 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2532 if (!(host->flags & SDHCI_SIGNALING_330)) in sdhci_start_signal_voltage_switch()
2534 /* Set 1.8V Signal Enable in the Host Control2 register to 0 */ in sdhci_start_signal_voltage_switch()
2536 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2550 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2559 if (!(host->flags & SDHCI_SIGNALING_180)) in sdhci_start_signal_voltage_switch()
2571 * Enable 1.8V Signal Enable in the Host Control2 in sdhci_start_signal_voltage_switch()
2575 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2578 if (host->ops->voltage_switch) in sdhci_start_signal_voltage_switch()
2579 host->ops->voltage_switch(host); in sdhci_start_signal_voltage_switch()
2582 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2591 if (!(host->flags & SDHCI_SIGNALING_120)) in sdhci_start_signal_voltage_switch()
2611 struct sdhci_host *host = mmc_priv(mmc); in sdhci_card_busy() local
2615 present_state = sdhci_readl(host, SDHCI_PRESENT_STATE); in sdhci_card_busy()
2622 struct sdhci_host *host = mmc_priv(mmc); in sdhci_prepare_hs400_tuning() local
2625 spin_lock_irqsave(&host->lock, flags); in sdhci_prepare_hs400_tuning()
2626 host->flags |= SDHCI_HS400_TUNING; in sdhci_prepare_hs400_tuning()
2627 spin_unlock_irqrestore(&host->lock, flags); in sdhci_prepare_hs400_tuning()
2632 void sdhci_start_tuning(struct sdhci_host *host) in sdhci_start_tuning() argument
2636 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_tuning()
2638 if (host->quirks2 & SDHCI_QUIRK2_TUNING_WORK_AROUND) in sdhci_start_tuning()
2640 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_start_tuning()
2643 * As per the Host Controller spec v3.00, tuning command in sdhci_start_tuning()
2652 sdhci_writel(host, SDHCI_INT_DATA_AVAIL, SDHCI_INT_ENABLE); in sdhci_start_tuning()
2653 sdhci_writel(host, SDHCI_INT_DATA_AVAIL, SDHCI_SIGNAL_ENABLE); in sdhci_start_tuning()
2657 void sdhci_end_tuning(struct sdhci_host *host) in sdhci_end_tuning() argument
2659 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_end_tuning()
2660 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_end_tuning()
2664 void sdhci_reset_tuning(struct sdhci_host *host) in sdhci_reset_tuning() argument
2668 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_reset_tuning()
2671 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_reset_tuning()
2675 void sdhci_abort_tuning(struct sdhci_host *host, u32 opcode) in sdhci_abort_tuning() argument
2677 sdhci_reset_tuning(host); in sdhci_abort_tuning()
2679 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_abort_tuning()
2680 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_abort_tuning()
2682 sdhci_end_tuning(host); in sdhci_abort_tuning()
2684 mmc_abort_tuning(host->mmc, opcode); in sdhci_abort_tuning()
2695 void sdhci_send_tuning(struct sdhci_host *host, u32 opcode) in sdhci_send_tuning() argument
2697 struct mmc_host *mmc = host->mmc; in sdhci_send_tuning()
2701 u32 b = host->sdma_boundary; in sdhci_send_tuning()
2703 spin_lock_irqsave(&host->lock, flags); in sdhci_send_tuning()
2712 * block to the Host Controller. So we set the block size in sdhci_send_tuning()
2717 sdhci_writew(host, SDHCI_MAKE_BLKSZ(b, 128), SDHCI_BLOCK_SIZE); in sdhci_send_tuning()
2719 sdhci_writew(host, SDHCI_MAKE_BLKSZ(b, 64), SDHCI_BLOCK_SIZE); in sdhci_send_tuning()
2722 * The tuning block is sent by the card to the host controller. in sdhci_send_tuning()
2727 sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE); in sdhci_send_tuning()
2729 if (!sdhci_send_command_retry(host, &cmd, flags)) { in sdhci_send_tuning()
2730 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_tuning()
2731 host->tuning_done = 0; in sdhci_send_tuning()
2735 host->cmd = NULL; in sdhci_send_tuning()
2737 sdhci_del_timer(host, &mrq); in sdhci_send_tuning()
2739 host->tuning_done = 0; in sdhci_send_tuning()
2741 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_tuning()
2744 wait_event_timeout(host->buf_ready_int, (host->tuning_done == 1), in sdhci_send_tuning()
2750 static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode) in __sdhci_execute_tuning() argument
2758 for (i = 0; i < host->tuning_loop_count; i++) { in __sdhci_execute_tuning()
2761 sdhci_send_tuning(host, opcode); in __sdhci_execute_tuning()
2763 if (!host->tuning_done) { in __sdhci_execute_tuning()
2765 mmc_hostname(host->mmc)); in __sdhci_execute_tuning()
2766 sdhci_abort_tuning(host, opcode); in __sdhci_execute_tuning()
2771 if (host->tuning_delay > 0) in __sdhci_execute_tuning()
2772 mdelay(host->tuning_delay); in __sdhci_execute_tuning()
2774 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in __sdhci_execute_tuning()
2784 mmc_hostname(host->mmc)); in __sdhci_execute_tuning()
2785 sdhci_reset_tuning(host); in __sdhci_execute_tuning()
2791 struct sdhci_host *host = mmc_priv(mmc); in sdhci_execute_tuning() local
2796 hs400_tuning = host->flags & SDHCI_HS400_TUNING; in sdhci_execute_tuning()
2798 if (host->tuning_mode == SDHCI_TUNING_MODE_1) in sdhci_execute_tuning()
2799 tuning_count = host->tuning_count; in sdhci_execute_tuning()
2802 * The Host Controller needs tuning in case of SDR104 and DDR50 in sdhci_execute_tuning()
2805 * If the Host Controller supports the HS200 mode then the in sdhci_execute_tuning()
2808 switch (host->timing) { in sdhci_execute_tuning()
2828 if (host->flags & SDHCI_SDR50_NEEDS_TUNING) in sdhci_execute_tuning()
2836 if (host->ops->platform_execute_tuning) { in sdhci_execute_tuning()
2837 err = host->ops->platform_execute_tuning(host, opcode); in sdhci_execute_tuning()
2841 host->mmc->retune_period = tuning_count; in sdhci_execute_tuning()
2843 if (host->tuning_delay < 0) in sdhci_execute_tuning()
2844 host->tuning_delay = opcode == MMC_SEND_TUNING_BLOCK; in sdhci_execute_tuning()
2846 sdhci_start_tuning(host); in sdhci_execute_tuning()
2848 host->tuning_err = __sdhci_execute_tuning(host, opcode); in sdhci_execute_tuning()
2850 sdhci_end_tuning(host); in sdhci_execute_tuning()
2852 host->flags &= ~SDHCI_HS400_TUNING; in sdhci_execute_tuning()
2858 static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable) in sdhci_enable_preset_value() argument
2860 /* Host Controller v3.00 defines preset value registers */ in sdhci_enable_preset_value()
2861 if (host->version < SDHCI_SPEC_300) in sdhci_enable_preset_value()
2868 if (host->preset_enabled != enable) { in sdhci_enable_preset_value()
2869 u16 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_enable_preset_value()
2876 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_enable_preset_value()
2879 host->flags |= SDHCI_PV_ENABLED; in sdhci_enable_preset_value()
2881 host->flags &= ~SDHCI_PV_ENABLED; in sdhci_enable_preset_value()
2883 host->preset_enabled = enable; in sdhci_enable_preset_value()
2890 struct sdhci_host *host = mmc_priv(mmc); in sdhci_post_req() local
2894 dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, in sdhci_post_req()
2902 struct sdhci_host *host = mmc_priv(mmc); in sdhci_pre_req() local
2911 if (host->flags & SDHCI_REQ_USE_DMA && !host->bounce_buffer) in sdhci_pre_req()
2912 sdhci_pre_dma_transfer(host, mrq->data, COOKIE_PRE_MAPPED); in sdhci_pre_req()
2915 static void sdhci_error_out_mrqs(struct sdhci_host *host, int err) in sdhci_error_out_mrqs() argument
2917 if (host->data_cmd) { in sdhci_error_out_mrqs()
2918 host->data_cmd->error = err; in sdhci_error_out_mrqs()
2919 sdhci_finish_mrq(host, host->data_cmd->mrq); in sdhci_error_out_mrqs()
2922 if (host->cmd) { in sdhci_error_out_mrqs()
2923 host->cmd->error = err; in sdhci_error_out_mrqs()
2924 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_error_out_mrqs()
2930 struct sdhci_host *host = mmc_priv(mmc); in sdhci_card_event() local
2935 if (host->ops->card_event) in sdhci_card_event()
2936 host->ops->card_event(host); in sdhci_card_event()
2940 spin_lock_irqsave(&host->lock, flags); in sdhci_card_event()
2943 if (sdhci_has_requests(host) && !present) { in sdhci_card_event()
2945 mmc_hostname(host->mmc)); in sdhci_card_event()
2947 mmc_hostname(host->mmc)); in sdhci_card_event()
2949 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_card_event()
2950 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_card_event()
2952 sdhci_error_out_mrqs(host, -ENOMEDIUM); in sdhci_card_event()
2955 spin_unlock_irqrestore(&host->lock, flags); in sdhci_card_event()
2981 static bool sdhci_request_done(struct sdhci_host *host) in sdhci_request_done() argument
2987 spin_lock_irqsave(&host->lock, flags); in sdhci_request_done()
2990 mrq = host->mrqs_done[i]; in sdhci_request_done()
2996 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3005 if (host->flags & SDHCI_REQ_USE_DMA) { in sdhci_request_done()
3008 if (host->use_external_dma && data && in sdhci_request_done()
3010 struct dma_chan *chan = sdhci_external_dma_channel(host, data); in sdhci_request_done()
3012 host->mrqs_done[i] = NULL; in sdhci_request_done()
3013 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3015 spin_lock_irqsave(&host->lock, flags); in sdhci_request_done()
3016 sdhci_set_mrq_done(host, mrq); in sdhci_request_done()
3020 if (host->bounce_buffer) { in sdhci_request_done()
3028 if (length > host->bounce_buffer_size) { in sdhci_request_done()
3030 mmc_hostname(host->mmc), in sdhci_request_done()
3031 host->bounce_buffer_size, in sdhci_request_done()
3034 length = host->bounce_buffer_size; in sdhci_request_done()
3037 host->mmc->parent, in sdhci_request_done()
3038 host->bounce_addr, in sdhci_request_done()
3039 host->bounce_buffer_size, in sdhci_request_done()
3043 host->bounce_buffer, in sdhci_request_done()
3048 host->mmc->parent, in sdhci_request_done()
3049 host->bounce_addr, in sdhci_request_done()
3050 host->bounce_buffer_size, in sdhci_request_done()
3055 dma_unmap_sg(mmc_dev(host->mmc), data->sg, in sdhci_request_done()
3067 if (sdhci_needs_reset(host, mrq)) { in sdhci_request_done()
3071 * also be in mrqs_done, otherwise host->cmd and host->data_cmd in sdhci_request_done()
3074 if (host->cmd || host->data_cmd) { in sdhci_request_done()
3075 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3080 if (host->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) in sdhci_request_done()
3082 host->ops->set_clock(host, host->clock); in sdhci_request_done()
3086 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_request_done()
3087 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_request_done()
3089 host->pending_reset = false; in sdhci_request_done()
3092 host->mrqs_done[i] = NULL; in sdhci_request_done()
3094 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3096 if (host->ops->request_done) in sdhci_request_done()
3097 host->ops->request_done(host, mrq); in sdhci_request_done()
3099 mmc_request_done(host->mmc, mrq); in sdhci_request_done()
3106 struct sdhci_host *host = container_of(work, struct sdhci_host, in sdhci_complete_work() local
3109 while (!sdhci_request_done(host)) in sdhci_complete_work()
3115 struct sdhci_host *host; in sdhci_timeout_timer() local
3118 host = from_timer(host, t, timer); in sdhci_timeout_timer()
3120 spin_lock_irqsave(&host->lock, flags); in sdhci_timeout_timer()
3122 if (host->cmd && !sdhci_data_line_cmd(host->cmd)) { in sdhci_timeout_timer()
3124 mmc_hostname(host->mmc)); in sdhci_timeout_timer()
3125 sdhci_dumpregs(host); in sdhci_timeout_timer()
3127 host->cmd->error = -ETIMEDOUT; in sdhci_timeout_timer()
3128 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_timeout_timer()
3131 spin_unlock_irqrestore(&host->lock, flags); in sdhci_timeout_timer()
3136 struct sdhci_host *host; in sdhci_timeout_data_timer() local
3139 host = from_timer(host, t, data_timer); in sdhci_timeout_data_timer()
3141 spin_lock_irqsave(&host->lock, flags); in sdhci_timeout_data_timer()
3143 if (host->data || host->data_cmd || in sdhci_timeout_data_timer()
3144 (host->cmd && sdhci_data_line_cmd(host->cmd))) { in sdhci_timeout_data_timer()
3146 mmc_hostname(host->mmc)); in sdhci_timeout_data_timer()
3147 sdhci_dumpregs(host); in sdhci_timeout_data_timer()
3149 if (host->data) { in sdhci_timeout_data_timer()
3150 host->data->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3151 __sdhci_finish_data(host, true); in sdhci_timeout_data_timer()
3152 queue_work(host->complete_wq, &host->complete_work); in sdhci_timeout_data_timer()
3153 } else if (host->data_cmd) { in sdhci_timeout_data_timer()
3154 host->data_cmd->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3155 sdhci_finish_mrq(host, host->data_cmd->mrq); in sdhci_timeout_data_timer()
3157 host->cmd->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3158 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_timeout_data_timer()
3162 spin_unlock_irqrestore(&host->lock, flags); in sdhci_timeout_data_timer()
3171 static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *intmask_p) in sdhci_cmd_irq() argument
3174 if (intmask & SDHCI_INT_AUTO_CMD_ERR && host->data_cmd) { in sdhci_cmd_irq()
3175 struct mmc_request *mrq = host->data_cmd->mrq; in sdhci_cmd_irq()
3176 u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS); in sdhci_cmd_irq()
3182 if (!mrq->sbc && (host->flags & SDHCI_AUTO_CMD12)) { in sdhci_cmd_irq()
3188 if (!host->cmd) { in sdhci_cmd_irq()
3194 if (host->pending_reset) in sdhci_cmd_irq()
3197 mmc_hostname(host->mmc), (unsigned)intmask); in sdhci_cmd_irq()
3198 sdhci_dumpregs(host); in sdhci_cmd_irq()
3205 host->cmd->error = -ETIMEDOUT; in sdhci_cmd_irq()
3207 host->cmd->error = -EILSEQ; in sdhci_cmd_irq()
3210 if (host->cmd->data && in sdhci_cmd_irq()
3213 host->cmd = NULL; in sdhci_cmd_irq()
3218 __sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_cmd_irq()
3224 struct mmc_request *mrq = host->cmd->mrq; in sdhci_cmd_irq()
3225 u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS); in sdhci_cmd_irq()
3230 if (mrq->sbc && (host->flags & SDHCI_AUTO_CMD23)) { in sdhci_cmd_irq()
3232 __sdhci_finish_mrq(host, mrq); in sdhci_cmd_irq()
3238 sdhci_finish_command(host); in sdhci_cmd_irq()
3241 static void sdhci_adma_show_error(struct sdhci_host *host) in sdhci_adma_show_error() argument
3243 void *desc = host->adma_table; in sdhci_adma_show_error()
3244 dma_addr_t dma = host->adma_addr; in sdhci_adma_show_error()
3246 sdhci_dumpregs(host); in sdhci_adma_show_error()
3251 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_adma_show_error()
3265 desc += host->desc_sz; in sdhci_adma_show_error()
3266 dma += host->desc_sz; in sdhci_adma_show_error()
3273 static void sdhci_data_irq(struct sdhci_host *host, u32 intmask) in sdhci_data_irq() argument
3279 command = SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND)); in sdhci_data_irq()
3282 host->tuning_done = 1; in sdhci_data_irq()
3283 wake_up(&host->buf_ready_int); in sdhci_data_irq()
3288 if (!host->data) { in sdhci_data_irq()
3289 struct mmc_command *data_cmd = host->data_cmd; in sdhci_data_irq()
3298 host->data_cmd = NULL; in sdhci_data_irq()
3300 __sdhci_finish_mrq(host, data_cmd->mrq); in sdhci_data_irq()
3304 host->data_cmd = NULL; in sdhci_data_irq()
3310 if (host->cmd == data_cmd) in sdhci_data_irq()
3313 __sdhci_finish_mrq(host, data_cmd->mrq); in sdhci_data_irq()
3323 if (host->pending_reset) in sdhci_data_irq()
3327 mmc_hostname(host->mmc), (unsigned)intmask); in sdhci_data_irq()
3328 sdhci_dumpregs(host); in sdhci_data_irq()
3334 host->data->error = -ETIMEDOUT; in sdhci_data_irq()
3336 host->data->error = -EILSEQ; in sdhci_data_irq()
3338 SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND)) in sdhci_data_irq()
3340 host->data->error = -EILSEQ; in sdhci_data_irq()
3342 pr_err("%s: ADMA error: 0x%08x\n", mmc_hostname(host->mmc), in sdhci_data_irq()
3344 sdhci_adma_show_error(host); in sdhci_data_irq()
3345 host->data->error = -EIO; in sdhci_data_irq()
3346 if (host->ops->adma_workaround) in sdhci_data_irq()
3347 host->ops->adma_workaround(host, intmask); in sdhci_data_irq()
3350 if (host->data->error) in sdhci_data_irq()
3351 sdhci_finish_data(host); in sdhci_data_irq()
3354 sdhci_transfer_pio(host); in sdhci_data_irq()
3361 * According to the spec sdhci_readl(host, SDHCI_DMA_ADDRESS) in sdhci_data_irq()
3368 dmastart = sdhci_sdma_address(host); in sdhci_data_irq()
3369 dmanow = dmastart + host->data->bytes_xfered; in sdhci_data_irq()
3376 host->data->bytes_xfered = dmanow - dmastart; in sdhci_data_irq()
3378 &dmastart, host->data->bytes_xfered, &dmanow); in sdhci_data_irq()
3379 sdhci_set_sdma_addr(host, dmanow); in sdhci_data_irq()
3383 if (host->cmd == host->data_cmd) { in sdhci_data_irq()
3389 host->data_early = 1; in sdhci_data_irq()
3391 sdhci_finish_data(host); in sdhci_data_irq()
3397 static inline bool sdhci_defer_done(struct sdhci_host *host, in sdhci_defer_done() argument
3402 return host->pending_reset || host->always_defer_done || in sdhci_defer_done()
3403 ((host->flags & SDHCI_REQ_USE_DMA) && data && in sdhci_defer_done()
3411 struct sdhci_host *host = dev_id; in sdhci_irq() local
3416 spin_lock(&host->lock); in sdhci_irq()
3418 if (host->runtime_suspended) { in sdhci_irq()
3419 spin_unlock(&host->lock); in sdhci_irq()
3423 intmask = sdhci_readl(host, SDHCI_INT_STATUS); in sdhci_irq()
3432 if (host->ops->irq) { in sdhci_irq()
3433 intmask = host->ops->irq(host, intmask); in sdhci_irq()
3441 sdhci_writel(host, mask, SDHCI_INT_STATUS); in sdhci_irq()
3444 u32 present = sdhci_readl(host, SDHCI_PRESENT_STATE) & in sdhci_irq()
3458 host->ier &= ~(SDHCI_INT_CARD_INSERT | in sdhci_irq()
3460 host->ier |= present ? SDHCI_INT_CARD_REMOVE : in sdhci_irq()
3462 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_irq()
3463 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_irq()
3465 sdhci_writel(host, intmask & (SDHCI_INT_CARD_INSERT | in sdhci_irq()
3468 host->thread_isr |= intmask & (SDHCI_INT_CARD_INSERT | in sdhci_irq()
3474 sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, &intmask); in sdhci_irq()
3477 sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK); in sdhci_irq()
3481 mmc_hostname(host->mmc)); in sdhci_irq()
3484 mmc_retune_needed(host->mmc); in sdhci_irq()
3487 (host->ier & SDHCI_INT_CARD_INT)) { in sdhci_irq()
3488 sdhci_enable_sdio_irq_nolock(host, false); in sdhci_irq()
3489 sdio_signal_irq(host->mmc); in sdhci_irq()
3499 sdhci_writel(host, intmask, SDHCI_INT_STATUS); in sdhci_irq()
3505 intmask = sdhci_readl(host, SDHCI_INT_STATUS); in sdhci_irq()
3510 struct mmc_request *mrq = host->mrqs_done[i]; in sdhci_irq()
3515 if (sdhci_defer_done(host, mrq)) { in sdhci_irq()
3519 host->mrqs_done[i] = NULL; in sdhci_irq()
3523 if (host->deferred_cmd) in sdhci_irq()
3526 spin_unlock(&host->lock); in sdhci_irq()
3533 if (host->ops->request_done) in sdhci_irq()
3534 host->ops->request_done(host, mrqs_done[i]); in sdhci_irq()
3536 mmc_request_done(host->mmc, mrqs_done[i]); in sdhci_irq()
3541 mmc_hostname(host->mmc), unexpected); in sdhci_irq()
3542 sdhci_dumpregs(host); in sdhci_irq()
3550 struct sdhci_host *host = dev_id; in sdhci_thread_irq() local
3555 while (!sdhci_request_done(host)) in sdhci_thread_irq()
3558 spin_lock_irqsave(&host->lock, flags); in sdhci_thread_irq()
3560 isr = host->thread_isr; in sdhci_thread_irq()
3561 host->thread_isr = 0; in sdhci_thread_irq()
3563 cmd = host->deferred_cmd; in sdhci_thread_irq()
3564 if (cmd && !sdhci_send_command_retry(host, cmd, flags)) in sdhci_thread_irq()
3565 sdhci_finish_mrq(host, cmd->mrq); in sdhci_thread_irq()
3567 spin_unlock_irqrestore(&host->lock, flags); in sdhci_thread_irq()
3570 struct mmc_host *mmc = host->mmc; in sdhci_thread_irq()
3587 static bool sdhci_cd_irq_can_wakeup(struct sdhci_host *host) in sdhci_cd_irq_can_wakeup() argument
3589 return mmc_card_is_removable(host->mmc) && in sdhci_cd_irq_can_wakeup()
3590 !(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && in sdhci_cd_irq_can_wakeup()
3591 !mmc_can_gpio_cd(host->mmc); in sdhci_cd_irq_can_wakeup()
3597 * Table' in the SD Host Controller Standard Specification.
3602 static bool sdhci_enable_irq_wakeups(struct sdhci_host *host) in sdhci_enable_irq_wakeups() argument
3610 if (sdhci_cd_irq_can_wakeup(host)) { in sdhci_enable_irq_wakeups()
3615 if (mmc_card_wake_sdio_irq(host->mmc)) { in sdhci_enable_irq_wakeups()
3623 val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL); in sdhci_enable_irq_wakeups()
3626 sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL); in sdhci_enable_irq_wakeups()
3628 sdhci_writel(host, irq_val, SDHCI_INT_ENABLE); in sdhci_enable_irq_wakeups()
3630 host->irq_wake_enabled = !enable_irq_wake(host->irq); in sdhci_enable_irq_wakeups()
3632 return host->irq_wake_enabled; in sdhci_enable_irq_wakeups()
3635 static void sdhci_disable_irq_wakeups(struct sdhci_host *host) in sdhci_disable_irq_wakeups() argument
3641 val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL); in sdhci_disable_irq_wakeups()
3643 sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL); in sdhci_disable_irq_wakeups()
3645 disable_irq_wake(host->irq); in sdhci_disable_irq_wakeups()
3647 host->irq_wake_enabled = false; in sdhci_disable_irq_wakeups()
3650 int sdhci_suspend_host(struct sdhci_host *host) in sdhci_suspend_host() argument
3652 sdhci_disable_card_detection(host); in sdhci_suspend_host()
3654 mmc_retune_timer_stop(host->mmc); in sdhci_suspend_host()
3656 if (!device_may_wakeup(mmc_dev(host->mmc)) || in sdhci_suspend_host()
3657 !sdhci_enable_irq_wakeups(host)) { in sdhci_suspend_host()
3658 host->ier = 0; in sdhci_suspend_host()
3659 sdhci_writel(host, 0, SDHCI_INT_ENABLE); in sdhci_suspend_host()
3660 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in sdhci_suspend_host()
3661 free_irq(host->irq, host); in sdhci_suspend_host()
3669 int sdhci_resume_host(struct sdhci_host *host) in sdhci_resume_host() argument
3671 struct mmc_host *mmc = host->mmc; in sdhci_resume_host()
3674 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_resume_host()
3675 if (host->ops->enable_dma) in sdhci_resume_host()
3676 host->ops->enable_dma(host); in sdhci_resume_host()
3679 if ((host->mmc->pm_flags & MMC_PM_KEEP_POWER) && in sdhci_resume_host()
3680 (host->quirks2 & SDHCI_QUIRK2_HOST_OFF_CARD_ON)) { in sdhci_resume_host()
3681 /* Card keeps power but host controller does not */ in sdhci_resume_host()
3682 sdhci_init(host, 0); in sdhci_resume_host()
3683 host->pwr = 0; in sdhci_resume_host()
3684 host->clock = 0; in sdhci_resume_host()
3687 sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER)); in sdhci_resume_host()
3690 if (host->irq_wake_enabled) { in sdhci_resume_host()
3691 sdhci_disable_irq_wakeups(host); in sdhci_resume_host()
3693 ret = request_threaded_irq(host->irq, sdhci_irq, in sdhci_resume_host()
3695 mmc_hostname(host->mmc), host); in sdhci_resume_host()
3700 sdhci_enable_card_detection(host); in sdhci_resume_host()
3707 int sdhci_runtime_suspend_host(struct sdhci_host *host) in sdhci_runtime_suspend_host() argument
3711 mmc_retune_timer_stop(host->mmc); in sdhci_runtime_suspend_host()
3713 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_suspend_host()
3714 host->ier &= SDHCI_INT_CARD_INT; in sdhci_runtime_suspend_host()
3715 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_runtime_suspend_host()
3716 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_runtime_suspend_host()
3717 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_suspend_host()
3719 synchronize_hardirq(host->irq); in sdhci_runtime_suspend_host()
3721 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_suspend_host()
3722 host->runtime_suspended = true; in sdhci_runtime_suspend_host()
3723 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_suspend_host()
3729 int sdhci_runtime_resume_host(struct sdhci_host *host, int soft_reset) in sdhci_runtime_resume_host() argument
3731 struct mmc_host *mmc = host->mmc; in sdhci_runtime_resume_host()
3733 int host_flags = host->flags; in sdhci_runtime_resume_host()
3736 if (host->ops->enable_dma) in sdhci_runtime_resume_host()
3737 host->ops->enable_dma(host); in sdhci_runtime_resume_host()
3740 sdhci_init(host, soft_reset); in sdhci_runtime_resume_host()
3745 host->pwr = 0; in sdhci_runtime_resume_host()
3746 host->clock = 0; in sdhci_runtime_resume_host()
3751 !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) { in sdhci_runtime_resume_host()
3752 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_resume_host()
3753 sdhci_enable_preset_value(host, true); in sdhci_runtime_resume_host()
3754 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_resume_host()
3762 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_resume_host()
3764 host->runtime_suspended = false; in sdhci_runtime_resume_host()
3768 sdhci_enable_sdio_irq_nolock(host, true); in sdhci_runtime_resume_host()
3771 sdhci_enable_card_detection(host); in sdhci_runtime_resume_host()
3773 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_resume_host()
3789 struct sdhci_host *host = mmc_priv(mmc); in sdhci_cqe_enable() local
3793 spin_lock_irqsave(&host->lock, flags); in sdhci_cqe_enable()
3795 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in sdhci_cqe_enable()
3798 * Host from V4.10 supports ADMA3 DMA type. in sdhci_cqe_enable()
3802 if (host->v4_mode && (host->caps1 & SDHCI_CAN_DO_ADMA3)) in sdhci_cqe_enable()
3804 else if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_cqe_enable()
3808 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_cqe_enable()
3810 sdhci_writew(host, SDHCI_MAKE_BLKSZ(host->sdma_boundary, 512), in sdhci_cqe_enable()
3814 sdhci_set_timeout(host, NULL); in sdhci_cqe_enable()
3816 host->ier = host->cqe_ier; in sdhci_cqe_enable()
3818 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_cqe_enable()
3819 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_cqe_enable()
3821 host->cqe_on = true; in sdhci_cqe_enable()
3824 mmc_hostname(mmc), host->ier, in sdhci_cqe_enable()
3825 sdhci_readl(host, SDHCI_INT_STATUS)); in sdhci_cqe_enable()
3827 spin_unlock_irqrestore(&host->lock, flags); in sdhci_cqe_enable()
3833 struct sdhci_host *host = mmc_priv(mmc); in sdhci_cqe_disable() local
3836 spin_lock_irqsave(&host->lock, flags); in sdhci_cqe_disable()
3838 sdhci_set_default_irqs(host); in sdhci_cqe_disable()
3840 host->cqe_on = false; in sdhci_cqe_disable()
3843 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_cqe_disable()
3844 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_cqe_disable()
3848 mmc_hostname(mmc), host->ier, in sdhci_cqe_disable()
3849 sdhci_readl(host, SDHCI_INT_STATUS)); in sdhci_cqe_disable()
3851 spin_unlock_irqrestore(&host->lock, flags); in sdhci_cqe_disable()
3855 bool sdhci_cqe_irq(struct sdhci_host *host, u32 intmask, int *cmd_error, in sdhci_cqe_irq() argument
3860 if (!host->cqe_on) in sdhci_cqe_irq()
3880 mask = intmask & host->cqe_ier; in sdhci_cqe_irq()
3881 sdhci_writel(host, mask, SDHCI_INT_STATUS); in sdhci_cqe_irq()
3885 mmc_hostname(host->mmc)); in sdhci_cqe_irq()
3887 intmask &= ~(host->cqe_ier | SDHCI_INT_ERROR); in sdhci_cqe_irq()
3889 sdhci_writel(host, intmask, SDHCI_INT_STATUS); in sdhci_cqe_irq()
3891 mmc_hostname(host->mmc), intmask); in sdhci_cqe_irq()
3892 sdhci_dumpregs(host); in sdhci_cqe_irq()
3909 struct sdhci_host *host; in sdhci_alloc_host() local
3917 host = mmc_priv(mmc); in sdhci_alloc_host()
3918 host->mmc = mmc; in sdhci_alloc_host()
3919 host->mmc_host_ops = sdhci_ops; in sdhci_alloc_host()
3920 mmc->ops = &host->mmc_host_ops; in sdhci_alloc_host()
3922 host->flags = SDHCI_SIGNALING_330; in sdhci_alloc_host()
3924 host->cqe_ier = SDHCI_CQE_INT_MASK; in sdhci_alloc_host()
3925 host->cqe_err_ier = SDHCI_CQE_INT_ERR_MASK; in sdhci_alloc_host()
3927 host->tuning_delay = -1; in sdhci_alloc_host()
3928 host->tuning_loop_count = MAX_TUNING_LOOP; in sdhci_alloc_host()
3930 host->sdma_boundary = SDHCI_DEFAULT_BOUNDARY_ARG; in sdhci_alloc_host()
3937 host->adma_table_cnt = SDHCI_MAX_SEGS * 2 + 1; in sdhci_alloc_host()
3939 return host; in sdhci_alloc_host()
3944 static int sdhci_set_dma_mask(struct sdhci_host *host) in sdhci_set_dma_mask() argument
3946 struct mmc_host *mmc = host->mmc; in sdhci_set_dma_mask()
3950 if (host->quirks2 & SDHCI_QUIRK2_BROKEN_64_BIT_DMA) in sdhci_set_dma_mask()
3951 host->flags &= ~SDHCI_USE_64_BIT_DMA; in sdhci_set_dma_mask()
3954 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_set_dma_mask()
3959 host->flags &= ~SDHCI_USE_64_BIT_DMA; in sdhci_set_dma_mask()
3974 void __sdhci_read_caps(struct sdhci_host *host, const u16 *ver, in __sdhci_read_caps() argument
3981 if (host->read_caps) in __sdhci_read_caps()
3984 host->read_caps = true; in __sdhci_read_caps()
3987 host->quirks = debug_quirks; in __sdhci_read_caps()
3990 host->quirks2 = debug_quirks2; in __sdhci_read_caps()
3992 sdhci_do_reset(host, SDHCI_RESET_ALL); in __sdhci_read_caps()
3994 if (host->v4_mode) in __sdhci_read_caps()
3995 sdhci_do_enable_v4_mode(host); in __sdhci_read_caps()
3997 of_property_read_u64(mmc_dev(host->mmc)->of_node, in __sdhci_read_caps()
3999 of_property_read_u64(mmc_dev(host->mmc)->of_node, in __sdhci_read_caps()
4002 v = ver ? *ver : sdhci_readw(host, SDHCI_HOST_VERSION); in __sdhci_read_caps()
4003 host->version = (v & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT; in __sdhci_read_caps()
4005 if (host->quirks & SDHCI_QUIRK_MISSING_CAPS) in __sdhci_read_caps()
4009 host->caps = *caps; in __sdhci_read_caps()
4011 host->caps = sdhci_readl(host, SDHCI_CAPABILITIES); in __sdhci_read_caps()
4012 host->caps &= ~lower_32_bits(dt_caps_mask); in __sdhci_read_caps()
4013 host->caps |= lower_32_bits(dt_caps); in __sdhci_read_caps()
4016 if (host->version < SDHCI_SPEC_300) in __sdhci_read_caps()
4020 host->caps1 = *caps1; in __sdhci_read_caps()
4022 host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1); in __sdhci_read_caps()
4023 host->caps1 &= ~upper_32_bits(dt_caps_mask); in __sdhci_read_caps()
4024 host->caps1 |= upper_32_bits(dt_caps); in __sdhci_read_caps()
4029 static void sdhci_allocate_bounce_buffer(struct sdhci_host *host) in sdhci_allocate_bounce_buffer() argument
4031 struct mmc_host *mmc = host->mmc; in sdhci_allocate_bounce_buffer()
4056 host->bounce_buffer = devm_kmalloc(mmc->parent, in sdhci_allocate_bounce_buffer()
4059 if (!host->bounce_buffer) { in sdhci_allocate_bounce_buffer()
4070 host->bounce_addr = dma_map_single(mmc->parent, in sdhci_allocate_bounce_buffer()
4071 host->bounce_buffer, in sdhci_allocate_bounce_buffer()
4074 ret = dma_mapping_error(mmc->parent, host->bounce_addr); in sdhci_allocate_bounce_buffer()
4078 host->bounce_buffer_size = bounce_size; in sdhci_allocate_bounce_buffer()
4089 static inline bool sdhci_can_64bit_dma(struct sdhci_host *host) in sdhci_can_64bit_dma() argument
4092 * According to SD Host Controller spec v4.10, bit[27] added from in sdhci_can_64bit_dma()
4096 if (host->version >= SDHCI_SPEC_410 && host->v4_mode) in sdhci_can_64bit_dma()
4097 return host->caps & SDHCI_CAN_64BIT_V4; in sdhci_can_64bit_dma()
4099 return host->caps & SDHCI_CAN_64BIT; in sdhci_can_64bit_dma()
4102 int sdhci_setup_host(struct sdhci_host *host) in sdhci_setup_host() argument
4112 WARN_ON(host == NULL); in sdhci_setup_host()
4113 if (host == NULL) in sdhci_setup_host()
4116 mmc = host->mmc; in sdhci_setup_host()
4120 * early before resetting the host and reading the capabilities so that in sdhci_setup_host()
4121 * the host can take the appropriate action if regulators are not in sdhci_setup_host()
4132 sdhci_readw(host, SDHCI_HOST_VERSION), in sdhci_setup_host()
4133 sdhci_readl(host, SDHCI_PRESENT_STATE)); in sdhci_setup_host()
4135 sdhci_readl(host, SDHCI_CAPABILITIES), in sdhci_setup_host()
4136 sdhci_readl(host, SDHCI_CAPABILITIES_1)); in sdhci_setup_host()
4138 sdhci_read_caps(host); in sdhci_setup_host()
4140 override_timeout_clk = host->timeout_clk; in sdhci_setup_host()
4142 if (host->version > SDHCI_SPEC_420) { in sdhci_setup_host()
4144 mmc_hostname(mmc), host->version); in sdhci_setup_host()
4147 if (host->quirks & SDHCI_QUIRK_FORCE_DMA) in sdhci_setup_host()
4148 host->flags |= SDHCI_USE_SDMA; in sdhci_setup_host()
4149 else if (!(host->caps & SDHCI_CAN_DO_SDMA)) in sdhci_setup_host()
4152 host->flags |= SDHCI_USE_SDMA; in sdhci_setup_host()
4154 if ((host->quirks & SDHCI_QUIRK_BROKEN_DMA) && in sdhci_setup_host()
4155 (host->flags & SDHCI_USE_SDMA)) { in sdhci_setup_host()
4157 host->flags &= ~SDHCI_USE_SDMA; in sdhci_setup_host()
4160 if ((host->version >= SDHCI_SPEC_200) && in sdhci_setup_host()
4161 (host->caps & SDHCI_CAN_DO_ADMA2)) in sdhci_setup_host()
4162 host->flags |= SDHCI_USE_ADMA; in sdhci_setup_host()
4164 if ((host->quirks & SDHCI_QUIRK_BROKEN_ADMA) && in sdhci_setup_host()
4165 (host->flags & SDHCI_USE_ADMA)) { in sdhci_setup_host()
4167 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4170 if (sdhci_can_64bit_dma(host)) in sdhci_setup_host()
4171 host->flags |= SDHCI_USE_64_BIT_DMA; in sdhci_setup_host()
4173 if (host->use_external_dma) { in sdhci_setup_host()
4174 ret = sdhci_external_dma_init(host); in sdhci_setup_host()
4182 sdhci_switch_external_dma(host, false); in sdhci_setup_host()
4185 host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA); in sdhci_setup_host()
4188 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_setup_host()
4189 if (host->ops->set_dma_mask) in sdhci_setup_host()
4190 ret = host->ops->set_dma_mask(host); in sdhci_setup_host()
4192 ret = sdhci_set_dma_mask(host); in sdhci_setup_host()
4194 if (!ret && host->ops->enable_dma) in sdhci_setup_host()
4195 ret = host->ops->enable_dma(host); in sdhci_setup_host()
4200 host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA); in sdhci_setup_host()
4207 if ((host->flags & SDHCI_USE_64_BIT_DMA) && !host->v4_mode) in sdhci_setup_host()
4208 host->flags &= ~SDHCI_USE_SDMA; in sdhci_setup_host()
4210 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4214 if (!(host->flags & SDHCI_USE_64_BIT_DMA)) in sdhci_setup_host()
4215 host->alloc_desc_sz = SDHCI_ADMA2_32_DESC_SZ; in sdhci_setup_host()
4216 else if (!host->alloc_desc_sz) in sdhci_setup_host()
4217 host->alloc_desc_sz = SDHCI_ADMA2_64_DESC_SZ(host); in sdhci_setup_host()
4219 host->desc_sz = host->alloc_desc_sz; in sdhci_setup_host()
4220 host->adma_table_sz = host->adma_table_cnt * host->desc_sz; in sdhci_setup_host()
4222 host->align_buffer_sz = SDHCI_MAX_SEGS * SDHCI_ADMA2_ALIGN; in sdhci_setup_host()
4228 host->align_buffer_sz + host->adma_table_sz, in sdhci_setup_host()
4233 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4234 } else if ((dma + host->align_buffer_sz) & in sdhci_setup_host()
4238 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4239 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_setup_host()
4240 host->adma_table_sz, buf, dma); in sdhci_setup_host()
4242 host->align_buffer = buf; in sdhci_setup_host()
4243 host->align_addr = dma; in sdhci_setup_host()
4245 host->adma_table = buf + host->align_buffer_sz; in sdhci_setup_host()
4246 host->adma_addr = dma + host->align_buffer_sz; in sdhci_setup_host()
4255 if (!(host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA))) { in sdhci_setup_host()
4256 host->dma_mask = DMA_BIT_MASK(64); in sdhci_setup_host()
4257 mmc_dev(mmc)->dma_mask = &host->dma_mask; in sdhci_setup_host()
4260 if (host->version >= SDHCI_SPEC_300) in sdhci_setup_host()
4261 host->max_clk = FIELD_GET(SDHCI_CLOCK_V3_BASE_MASK, host->caps); in sdhci_setup_host()
4263 host->max_clk = FIELD_GET(SDHCI_CLOCK_BASE_MASK, host->caps); in sdhci_setup_host()
4265 host->max_clk *= 1000000; in sdhci_setup_host()
4266 if (host->max_clk == 0 || host->quirks & in sdhci_setup_host()
4268 if (!host->ops->get_max_clock) { in sdhci_setup_host()
4274 host->max_clk = host->ops->get_max_clock(host); in sdhci_setup_host()
4278 * In case of Host Controller v3.00, find out whether clock in sdhci_setup_host()
4281 host->clk_mul = FIELD_GET(SDHCI_CLOCK_MUL_MASK, host->caps1); in sdhci_setup_host()
4289 if (host->clk_mul) in sdhci_setup_host()
4290 host->clk_mul += 1; in sdhci_setup_host()
4293 * Set host parameters. in sdhci_setup_host()
4295 max_clk = host->max_clk; in sdhci_setup_host()
4297 if (host->ops->get_min_clock) in sdhci_setup_host()
4298 mmc->f_min = host->ops->get_min_clock(host); in sdhci_setup_host()
4299 else if (host->version >= SDHCI_SPEC_300) { in sdhci_setup_host()
4300 if (host->clk_mul) in sdhci_setup_host()
4301 max_clk = host->max_clk * host->clk_mul; in sdhci_setup_host()
4306 mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300; in sdhci_setup_host()
4308 mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200; in sdhci_setup_host()
4313 if (!(host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)) { in sdhci_setup_host()
4314 host->timeout_clk = FIELD_GET(SDHCI_TIMEOUT_CLK_MASK, host->caps); in sdhci_setup_host()
4316 if (host->caps & SDHCI_TIMEOUT_CLK_UNIT) in sdhci_setup_host()
4317 host->timeout_clk *= 1000; in sdhci_setup_host()
4319 if (host->timeout_clk == 0) { in sdhci_setup_host()
4320 if (!host->ops->get_timeout_clock) { in sdhci_setup_host()
4327 host->timeout_clk = in sdhci_setup_host()
4328 DIV_ROUND_UP(host->ops->get_timeout_clock(host), in sdhci_setup_host()
4333 host->timeout_clk = override_timeout_clk; in sdhci_setup_host()
4335 mmc->max_busy_timeout = host->ops->get_max_timeout_count ? in sdhci_setup_host()
4336 host->ops->get_max_timeout_count(host) : 1 << 27; in sdhci_setup_host()
4337 mmc->max_busy_timeout /= host->timeout_clk; in sdhci_setup_host()
4340 if (host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT && in sdhci_setup_host()
4341 !host->ops->get_max_timeout_count) in sdhci_setup_host()
4347 if (host->quirks & SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12) in sdhci_setup_host()
4348 host->flags |= SDHCI_AUTO_CMD12; in sdhci_setup_host()
4354 if ((host->version >= SDHCI_SPEC_300) && in sdhci_setup_host()
4355 ((host->flags & SDHCI_USE_ADMA) || in sdhci_setup_host()
4356 !(host->flags & SDHCI_USE_SDMA) || host->v4_mode) && in sdhci_setup_host()
4357 !(host->quirks2 & SDHCI_QUIRK2_ACMD23_BROKEN)) { in sdhci_setup_host()
4358 host->flags |= SDHCI_AUTO_CMD23; in sdhci_setup_host()
4371 if (!(host->quirks & SDHCI_QUIRK_FORCE_1_BIT_DATA)) in sdhci_setup_host()
4374 if (host->quirks2 & SDHCI_QUIRK2_HOST_NO_CMD23) in sdhci_setup_host()
4377 if (host->caps & SDHCI_CAN_DO_HISPD) in sdhci_setup_host()
4380 if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && in sdhci_setup_host()
4382 mmc_gpio_get_cd(host->mmc) < 0) in sdhci_setup_host()
4388 host->sdhci_core_to_disable_vqmmc = !ret; in sdhci_setup_host()
4394 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | in sdhci_setup_host()
4401 host->flags &= ~SDHCI_SIGNALING_330; in sdhci_setup_host()
4411 if (host->quirks2 & SDHCI_QUIRK2_NO_1_8_V) { in sdhci_setup_host()
4412 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | in sdhci_setup_host()
4427 if (host->caps1 & (SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | in sdhci_setup_host()
4432 if (host->caps1 & SDHCI_SUPPORT_SDR104) { in sdhci_setup_host()
4437 if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200)) in sdhci_setup_host()
4439 } else if (host->caps1 & SDHCI_SUPPORT_SDR50) { in sdhci_setup_host()
4443 if (host->quirks2 & SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 && in sdhci_setup_host()
4444 (host->caps1 & SDHCI_SUPPORT_HS400)) in sdhci_setup_host()
4453 if ((host->caps1 & SDHCI_SUPPORT_DDR50) && in sdhci_setup_host()
4454 !(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50)) in sdhci_setup_host()
4457 /* Does the host need tuning for SDR50? */ in sdhci_setup_host()
4458 if (host->caps1 & SDHCI_USE_SDR50_TUNING) in sdhci_setup_host()
4459 host->flags |= SDHCI_SDR50_NEEDS_TUNING; in sdhci_setup_host()
4461 /* Driver Type(s) (A, C, D) supported by the host */ in sdhci_setup_host()
4462 if (host->caps1 & SDHCI_DRIVER_TYPE_A) in sdhci_setup_host()
4464 if (host->caps1 & SDHCI_DRIVER_TYPE_C) in sdhci_setup_host()
4466 if (host->caps1 & SDHCI_DRIVER_TYPE_D) in sdhci_setup_host()
4470 host->tuning_count = FIELD_GET(SDHCI_RETUNING_TIMER_COUNT_MASK, in sdhci_setup_host()
4471 host->caps1); in sdhci_setup_host()
4477 if (host->tuning_count) in sdhci_setup_host()
4478 host->tuning_count = 1 << (host->tuning_count - 1); in sdhci_setup_host()
4480 /* Re-tuning mode supported by the Host Controller */ in sdhci_setup_host()
4481 host->tuning_mode = FIELD_GET(SDHCI_RETUNING_MODE_MASK, host->caps1); in sdhci_setup_host()
4486 * According to SD Host Controller spec v3.00, if the Host System in sdhci_setup_host()
4487 * can afford more than 150mA, Host Driver should set XPC to 1. Also in sdhci_setup_host()
4492 max_current_caps = sdhci_readl(host, SDHCI_MAX_CURRENT); in sdhci_setup_host()
4509 if (host->caps & SDHCI_CAN_VDD_330) { in sdhci_setup_host()
4516 if (host->caps & SDHCI_CAN_VDD_300) { in sdhci_setup_host()
4523 if (host->caps & SDHCI_CAN_VDD_180) { in sdhci_setup_host()
4531 /* If OCR set by host, use it instead. */ in sdhci_setup_host()
4532 if (host->ocr_mask) in sdhci_setup_host()
4533 ocr_avail = host->ocr_mask; in sdhci_setup_host()
4541 if (host->ocr_avail_sdio) in sdhci_setup_host()
4542 mmc->ocr_avail_sdio &= host->ocr_avail_sdio; in sdhci_setup_host()
4544 if (host->ocr_avail_sd) in sdhci_setup_host()
4545 mmc->ocr_avail_sd &= host->ocr_avail_sd; in sdhci_setup_host()
4549 if (host->ocr_avail_mmc) in sdhci_setup_host()
4550 mmc->ocr_avail_mmc &= host->ocr_avail_mmc; in sdhci_setup_host()
4563 host->flags |= SDHCI_SIGNALING_180; in sdhci_setup_host()
4566 host->flags |= SDHCI_SIGNALING_120; in sdhci_setup_host()
4568 spin_lock_init(&host->lock); in sdhci_setup_host()
4581 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4583 } else if (host->flags & SDHCI_USE_SDMA) { in sdhci_setup_host()
4600 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4601 if (host->quirks & SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC) in sdhci_setup_host()
4613 if (host->quirks & SDHCI_QUIRK_FORCE_BLK_SZ_2048) { in sdhci_setup_host()
4616 mmc->max_blk_size = (host->caps & SDHCI_MAX_BLOCK_MASK) >> in sdhci_setup_host()
4630 mmc->max_blk_count = (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535; in sdhci_setup_host()
4634 sdhci_allocate_bounce_buffer(host); in sdhci_setup_host()
4639 if (host->sdhci_core_to_disable_vqmmc) in sdhci_setup_host()
4642 if (host->align_buffer) in sdhci_setup_host()
4643 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_setup_host()
4644 host->adma_table_sz, host->align_buffer, in sdhci_setup_host()
4645 host->align_addr); in sdhci_setup_host()
4646 host->adma_table = NULL; in sdhci_setup_host()
4647 host->align_buffer = NULL; in sdhci_setup_host()
4653 void sdhci_cleanup_host(struct sdhci_host *host) in sdhci_cleanup_host() argument
4655 struct mmc_host *mmc = host->mmc; in sdhci_cleanup_host()
4657 if (host->sdhci_core_to_disable_vqmmc) in sdhci_cleanup_host()
4660 if (host->align_buffer) in sdhci_cleanup_host()
4661 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_cleanup_host()
4662 host->adma_table_sz, host->align_buffer, in sdhci_cleanup_host()
4663 host->align_addr); in sdhci_cleanup_host()
4665 if (host->use_external_dma) in sdhci_cleanup_host()
4666 sdhci_external_dma_release(host); in sdhci_cleanup_host()
4668 host->adma_table = NULL; in sdhci_cleanup_host()
4669 host->align_buffer = NULL; in sdhci_cleanup_host()
4673 int __sdhci_add_host(struct sdhci_host *host) in __sdhci_add_host() argument
4676 struct mmc_host *mmc = host->mmc; in __sdhci_add_host()
4680 (host->quirks & SDHCI_QUIRK_BROKEN_CQE)) { in __sdhci_add_host()
4685 host->complete_wq = alloc_workqueue("sdhci", flags, 0); in __sdhci_add_host()
4686 if (!host->complete_wq) in __sdhci_add_host()
4689 INIT_WORK(&host->complete_work, sdhci_complete_work); in __sdhci_add_host()
4691 timer_setup(&host->timer, sdhci_timeout_timer, 0); in __sdhci_add_host()
4692 timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); in __sdhci_add_host()
4694 init_waitqueue_head(&host->buf_ready_int); in __sdhci_add_host()
4696 sdhci_init(host, 0); in __sdhci_add_host()
4698 ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq, in __sdhci_add_host()
4699 IRQF_SHARED, mmc_hostname(mmc), host); in __sdhci_add_host()
4702 mmc_hostname(mmc), host->irq, ret); in __sdhci_add_host()
4706 ret = sdhci_led_register(host); in __sdhci_add_host()
4718 mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)), in __sdhci_add_host()
4719 host->use_external_dma ? "External DMA" : in __sdhci_add_host()
4720 (host->flags & SDHCI_USE_ADMA) ? in __sdhci_add_host()
4721 (host->flags & SDHCI_USE_64_BIT_DMA) ? "ADMA 64-bit" : "ADMA" : in __sdhci_add_host()
4722 (host->flags & SDHCI_USE_SDMA) ? "DMA" : "PIO"); in __sdhci_add_host()
4724 sdhci_enable_card_detection(host); in __sdhci_add_host()
4729 sdhci_led_unregister(host); in __sdhci_add_host()
4731 sdhci_do_reset(host, SDHCI_RESET_ALL); in __sdhci_add_host()
4732 sdhci_writel(host, 0, SDHCI_INT_ENABLE); in __sdhci_add_host()
4733 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in __sdhci_add_host()
4734 free_irq(host->irq, host); in __sdhci_add_host()
4736 destroy_workqueue(host->complete_wq); in __sdhci_add_host()
4742 int sdhci_add_host(struct sdhci_host *host) in sdhci_add_host() argument
4746 ret = sdhci_setup_host(host); in sdhci_add_host()
4750 ret = __sdhci_add_host(host); in sdhci_add_host()
4757 sdhci_cleanup_host(host); in sdhci_add_host()
4763 void sdhci_remove_host(struct sdhci_host *host, int dead) in sdhci_remove_host() argument
4765 struct mmc_host *mmc = host->mmc; in sdhci_remove_host()
4769 spin_lock_irqsave(&host->lock, flags); in sdhci_remove_host()
4771 host->flags |= SDHCI_DEVICE_DEAD; in sdhci_remove_host()
4773 if (sdhci_has_requests(host)) { in sdhci_remove_host()
4776 sdhci_error_out_mrqs(host, -ENOMEDIUM); in sdhci_remove_host()
4779 spin_unlock_irqrestore(&host->lock, flags); in sdhci_remove_host()
4782 sdhci_disable_card_detection(host); in sdhci_remove_host()
4786 sdhci_led_unregister(host); in sdhci_remove_host()
4789 sdhci_do_reset(host, SDHCI_RESET_ALL); in sdhci_remove_host()
4791 sdhci_writel(host, 0, SDHCI_INT_ENABLE); in sdhci_remove_host()
4792 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in sdhci_remove_host()
4793 free_irq(host->irq, host); in sdhci_remove_host()
4795 del_timer_sync(&host->timer); in sdhci_remove_host()
4796 del_timer_sync(&host->data_timer); in sdhci_remove_host()
4798 destroy_workqueue(host->complete_wq); in sdhci_remove_host()
4800 if (host->sdhci_core_to_disable_vqmmc) in sdhci_remove_host()
4803 if (host->align_buffer) in sdhci_remove_host()
4804 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_remove_host()
4805 host->adma_table_sz, host->align_buffer, in sdhci_remove_host()
4806 host->align_addr); in sdhci_remove_host()
4808 if (host->use_external_dma) in sdhci_remove_host()
4809 sdhci_external_dma_release(host); in sdhci_remove_host()
4811 host->adma_table = NULL; in sdhci_remove_host()
4812 host->align_buffer = NULL; in sdhci_remove_host()
4817 void sdhci_free_host(struct sdhci_host *host) in sdhci_free_host() argument
4819 mmc_free_host(host->mmc); in sdhci_free_host()
4833 ": Secure Digital Host Controller Interface driver\n"); in sdhci_drv_init()
4850 MODULE_DESCRIPTION("Secure Digital Host Controller Interface core driver");