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()
781 while (len > host->max_adma) { in sdhci_adma_table_pre()
784 __sdhci_adma_write_desc(host, &desc, addr, n, ADMA2_TRAN_VALID); in sdhci_adma_table_pre()
791 __sdhci_adma_write_desc(host, &desc, addr, len, in sdhci_adma_table_pre()
798 WARN_ON((desc - host->adma_table) >= host->adma_table_sz); in sdhci_adma_table_pre()
801 if (host->quirks & SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC) { in sdhci_adma_table_pre()
803 if (desc != host->adma_table) { in sdhci_adma_table_pre()
804 desc -= host->desc_sz; in sdhci_adma_table_pre()
809 __sdhci_adma_write_desc(host, &desc, 0, 0, ADMA2_NOP_END_VALID); in sdhci_adma_table_pre()
813 static void sdhci_adma_table_post(struct sdhci_host *host, in sdhci_adma_table_post() argument
826 for_each_sg(data->sg, sg, host->sg_count, i) in sdhci_adma_table_post()
833 dma_sync_sg_for_cpu(mmc_dev(host->mmc), data->sg, in sdhci_adma_table_post()
836 align = host->align_buffer; in sdhci_adma_table_post()
838 for_each_sg(data->sg, sg, host->sg_count, i) { in sdhci_adma_table_post()
854 static void sdhci_set_adma_addr(struct sdhci_host *host, dma_addr_t addr) in sdhci_set_adma_addr() argument
856 sdhci_writel(host, lower_32_bits(addr), SDHCI_ADMA_ADDRESS); in sdhci_set_adma_addr()
857 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_set_adma_addr()
858 sdhci_writel(host, upper_32_bits(addr), SDHCI_ADMA_ADDRESS_HI); in sdhci_set_adma_addr()
861 static dma_addr_t sdhci_sdma_address(struct sdhci_host *host) in sdhci_sdma_address() argument
863 if (host->bounce_buffer) in sdhci_sdma_address()
864 return host->bounce_addr; in sdhci_sdma_address()
866 return sg_dma_address(host->data->sg); in sdhci_sdma_address()
869 static void sdhci_set_sdma_addr(struct sdhci_host *host, dma_addr_t addr) in sdhci_set_sdma_addr() argument
871 if (host->v4_mode) in sdhci_set_sdma_addr()
872 sdhci_set_adma_addr(host, addr); in sdhci_set_sdma_addr()
874 sdhci_writel(host, addr, SDHCI_DMA_ADDRESS); in sdhci_set_sdma_addr()
877 static unsigned int sdhci_target_timeout(struct sdhci_host *host, in sdhci_target_timeout() argument
888 if (host->clock && data->timeout_clks) { in sdhci_target_timeout()
893 * host->clock is in Hz. target_timeout is in us. in sdhci_target_timeout()
897 if (do_div(val, host->clock)) in sdhci_target_timeout()
906 static void sdhci_calc_sw_timeout(struct sdhci_host *host, in sdhci_calc_sw_timeout() argument
910 struct mmc_host *mmc = host->mmc; in sdhci_calc_sw_timeout()
918 target_timeout = sdhci_target_timeout(host, cmd, data); in sdhci_calc_sw_timeout()
923 freq = host->mmc->actual_clock ? : host->clock; in sdhci_calc_sw_timeout()
929 host->data_timeout = data->blocks * target_timeout + in sdhci_calc_sw_timeout()
932 host->data_timeout = target_timeout; in sdhci_calc_sw_timeout()
935 if (host->data_timeout) in sdhci_calc_sw_timeout()
936 host->data_timeout += MMC_CMD_TRANSFER_TIME; in sdhci_calc_sw_timeout()
939 static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd, in sdhci_calc_timeout() argument
949 * If the host controller provides us with an incorrect timeout in sdhci_calc_timeout()
954 if (host->quirks & SDHCI_QUIRK_BROKEN_TIMEOUT_VAL) in sdhci_calc_timeout()
967 target_timeout = sdhci_target_timeout(host, cmd, data); in sdhci_calc_timeout()
975 * (2) host->timeout_clk < 2^16 in sdhci_calc_timeout()
980 current_timeout = (1 << 13) * 1000 / host->timeout_clk; in sdhci_calc_timeout()
989 if (!(host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT)) in sdhci_calc_timeout()
1000 static void sdhci_set_transfer_irqs(struct sdhci_host *host) in sdhci_set_transfer_irqs() argument
1005 if (host->flags & SDHCI_REQ_USE_DMA) in sdhci_set_transfer_irqs()
1006 host->ier = (host->ier & ~pio_irqs) | dma_irqs; in sdhci_set_transfer_irqs()
1008 host->ier = (host->ier & ~dma_irqs) | pio_irqs; in sdhci_set_transfer_irqs()
1010 if (host->flags & (SDHCI_AUTO_CMD23 | SDHCI_AUTO_CMD12)) in sdhci_set_transfer_irqs()
1011 host->ier |= SDHCI_INT_AUTO_CMD_ERR; in sdhci_set_transfer_irqs()
1013 host->ier &= ~SDHCI_INT_AUTO_CMD_ERR; in sdhci_set_transfer_irqs()
1015 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_transfer_irqs()
1016 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_transfer_irqs()
1019 void sdhci_set_data_timeout_irq(struct sdhci_host *host, bool enable) in sdhci_set_data_timeout_irq() argument
1022 host->ier |= SDHCI_INT_DATA_TIMEOUT; in sdhci_set_data_timeout_irq()
1024 host->ier &= ~SDHCI_INT_DATA_TIMEOUT; in sdhci_set_data_timeout_irq()
1025 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_data_timeout_irq()
1026 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_data_timeout_irq()
1030 void __sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) in __sdhci_set_timeout() argument
1033 u8 count = sdhci_calc_timeout(host, cmd, &too_big); in __sdhci_set_timeout()
1036 host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT) { in __sdhci_set_timeout()
1037 sdhci_calc_sw_timeout(host, cmd); in __sdhci_set_timeout()
1038 sdhci_set_data_timeout_irq(host, false); in __sdhci_set_timeout()
1039 } else if (!(host->ier & SDHCI_INT_DATA_TIMEOUT)) { in __sdhci_set_timeout()
1040 sdhci_set_data_timeout_irq(host, true); in __sdhci_set_timeout()
1043 sdhci_writeb(host, count, SDHCI_TIMEOUT_CONTROL); in __sdhci_set_timeout()
1047 static void sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_set_timeout() argument
1049 if (host->ops->set_timeout) in sdhci_set_timeout()
1050 host->ops->set_timeout(host, cmd); in sdhci_set_timeout()
1052 __sdhci_set_timeout(host, cmd); in sdhci_set_timeout()
1055 static void sdhci_initialize_data(struct sdhci_host *host, in sdhci_initialize_data() argument
1058 WARN_ON(host->data); in sdhci_initialize_data()
1062 BUG_ON(data->blksz > host->mmc->max_blk_size); in sdhci_initialize_data()
1065 host->data = data; in sdhci_initialize_data()
1066 host->data_early = 0; in sdhci_initialize_data()
1067 host->data->bytes_xfered = 0; in sdhci_initialize_data()
1070 static inline void sdhci_set_block_info(struct sdhci_host *host, in sdhci_set_block_info() argument
1074 sdhci_writew(host, in sdhci_set_block_info()
1075 SDHCI_MAKE_BLKSZ(host->sdma_boundary, data->blksz), in sdhci_set_block_info()
1081 if (host->version >= SDHCI_SPEC_410 && host->v4_mode && in sdhci_set_block_info()
1082 (host->quirks2 & SDHCI_QUIRK2_USE_32BIT_BLK_CNT)) { in sdhci_set_block_info()
1083 if (sdhci_readw(host, SDHCI_BLOCK_COUNT)) in sdhci_set_block_info()
1084 sdhci_writew(host, 0, SDHCI_BLOCK_COUNT); in sdhci_set_block_info()
1085 sdhci_writew(host, data->blocks, SDHCI_32BIT_BLK_CNT); in sdhci_set_block_info()
1087 sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT); in sdhci_set_block_info()
1091 static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_prepare_data() argument
1095 sdhci_initialize_data(host, data); in sdhci_prepare_data()
1097 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_prepare_data()
1102 host->flags |= SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1113 if (host->flags & SDHCI_USE_ADMA) { in sdhci_prepare_data()
1114 if (host->quirks & SDHCI_QUIRK_32BIT_ADMA_SIZE) { in sdhci_prepare_data()
1124 if (host->quirks & SDHCI_QUIRK_32BIT_DMA_SIZE) in sdhci_prepare_data()
1126 if (host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) in sdhci_prepare_data()
1135 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1140 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1147 if (host->flags & SDHCI_REQ_USE_DMA) { in sdhci_prepare_data()
1148 int sg_cnt = sdhci_pre_dma_transfer(host, data, COOKIE_MAPPED); in sdhci_prepare_data()
1156 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1157 } else if (host->flags & SDHCI_USE_ADMA) { in sdhci_prepare_data()
1158 sdhci_adma_table_pre(host, data, sg_cnt); in sdhci_prepare_data()
1159 sdhci_set_adma_addr(host, host->adma_addr); in sdhci_prepare_data()
1162 sdhci_set_sdma_addr(host, sdhci_sdma_address(host)); in sdhci_prepare_data()
1166 sdhci_config_dma(host); in sdhci_prepare_data()
1168 if (!(host->flags & SDHCI_REQ_USE_DMA)) { in sdhci_prepare_data()
1172 if (host->data->flags & MMC_DATA_READ) in sdhci_prepare_data()
1176 sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); in sdhci_prepare_data()
1177 host->blocks = data->blocks; in sdhci_prepare_data()
1180 sdhci_set_transfer_irqs(host); in sdhci_prepare_data()
1182 sdhci_set_block_info(host, data); in sdhci_prepare_data()
1187 static int sdhci_external_dma_init(struct sdhci_host *host) in sdhci_external_dma_init() argument
1190 struct mmc_host *mmc = host->mmc; in sdhci_external_dma_init()
1192 host->tx_chan = dma_request_chan(mmc->parent, "tx"); in sdhci_external_dma_init()
1193 if (IS_ERR(host->tx_chan)) { in sdhci_external_dma_init()
1194 ret = PTR_ERR(host->tx_chan); in sdhci_external_dma_init()
1197 host->tx_chan = NULL; in sdhci_external_dma_init()
1201 host->rx_chan = dma_request_chan(mmc->parent, "rx"); in sdhci_external_dma_init()
1202 if (IS_ERR(host->rx_chan)) { in sdhci_external_dma_init()
1203 if (host->tx_chan) { in sdhci_external_dma_init()
1204 dma_release_channel(host->tx_chan); in sdhci_external_dma_init()
1205 host->tx_chan = NULL; in sdhci_external_dma_init()
1208 ret = PTR_ERR(host->rx_chan); in sdhci_external_dma_init()
1211 host->rx_chan = NULL; in sdhci_external_dma_init()
1217 static struct dma_chan *sdhci_external_dma_channel(struct sdhci_host *host, in sdhci_external_dma_channel() argument
1220 return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan; in sdhci_external_dma_channel()
1223 static int sdhci_external_dma_setup(struct sdhci_host *host, in sdhci_external_dma_setup() argument
1235 if (!host->mapbase) in sdhci_external_dma_setup()
1239 cfg.src_addr = host->mapbase + SDHCI_BUFFER; in sdhci_external_dma_setup()
1240 cfg.dst_addr = host->mapbase + SDHCI_BUFFER; in sdhci_external_dma_setup()
1252 chan = sdhci_external_dma_channel(host, data); in sdhci_external_dma_setup()
1258 sg_cnt = sdhci_pre_dma_transfer(host, data, COOKIE_MAPPED); in sdhci_external_dma_setup()
1278 static void sdhci_external_dma_release(struct sdhci_host *host) in sdhci_external_dma_release() argument
1280 if (host->tx_chan) { in sdhci_external_dma_release()
1281 dma_release_channel(host->tx_chan); in sdhci_external_dma_release()
1282 host->tx_chan = NULL; in sdhci_external_dma_release()
1285 if (host->rx_chan) { in sdhci_external_dma_release()
1286 dma_release_channel(host->rx_chan); in sdhci_external_dma_release()
1287 host->rx_chan = NULL; in sdhci_external_dma_release()
1290 sdhci_switch_external_dma(host, false); in sdhci_external_dma_release()
1293 static void __sdhci_external_dma_prepare_data(struct sdhci_host *host, in __sdhci_external_dma_prepare_data() argument
1298 sdhci_initialize_data(host, data); in __sdhci_external_dma_prepare_data()
1300 host->flags |= SDHCI_REQ_USE_DMA; in __sdhci_external_dma_prepare_data()
1301 sdhci_set_transfer_irqs(host); in __sdhci_external_dma_prepare_data()
1303 sdhci_set_block_info(host, data); in __sdhci_external_dma_prepare_data()
1306 static void sdhci_external_dma_prepare_data(struct sdhci_host *host, in sdhci_external_dma_prepare_data() argument
1309 if (!sdhci_external_dma_setup(host, cmd)) { in sdhci_external_dma_prepare_data()
1310 __sdhci_external_dma_prepare_data(host, cmd); in sdhci_external_dma_prepare_data()
1312 sdhci_external_dma_release(host); in sdhci_external_dma_prepare_data()
1314 mmc_hostname(host->mmc)); in sdhci_external_dma_prepare_data()
1315 sdhci_prepare_data(host, cmd); in sdhci_external_dma_prepare_data()
1319 static void sdhci_external_dma_pre_transfer(struct sdhci_host *host, in sdhci_external_dma_pre_transfer() argument
1327 chan = sdhci_external_dma_channel(host, cmd->data); in sdhci_external_dma_pre_transfer()
1334 static inline int sdhci_external_dma_init(struct sdhci_host *host) in sdhci_external_dma_init() argument
1339 static inline void sdhci_external_dma_release(struct sdhci_host *host) in sdhci_external_dma_release() argument
1343 static inline void sdhci_external_dma_prepare_data(struct sdhci_host *host, in sdhci_external_dma_prepare_data() argument
1350 static inline void sdhci_external_dma_pre_transfer(struct sdhci_host *host, in sdhci_external_dma_pre_transfer() argument
1355 static inline struct dma_chan *sdhci_external_dma_channel(struct sdhci_host *host, in sdhci_external_dma_channel() argument
1363 void sdhci_switch_external_dma(struct sdhci_host *host, bool en) in sdhci_switch_external_dma() argument
1365 host->use_external_dma = en; in sdhci_switch_external_dma()
1369 static inline bool sdhci_auto_cmd12(struct sdhci_host *host, in sdhci_auto_cmd12() argument
1372 return !mrq->sbc && (host->flags & SDHCI_AUTO_CMD12) && in sdhci_auto_cmd12()
1376 static inline bool sdhci_auto_cmd23(struct sdhci_host *host, in sdhci_auto_cmd23() argument
1379 return mrq->sbc && (host->flags & SDHCI_AUTO_CMD23); in sdhci_auto_cmd23()
1382 static inline bool sdhci_manual_cmd23(struct sdhci_host *host, in sdhci_manual_cmd23() argument
1385 return mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23); in sdhci_manual_cmd23()
1388 static inline void sdhci_auto_cmd_select(struct sdhci_host *host, in sdhci_auto_cmd_select() argument
1392 bool use_cmd12 = sdhci_auto_cmd12(host, cmd->mrq) && in sdhci_auto_cmd_select()
1394 bool use_cmd23 = sdhci_auto_cmd23(host, cmd->mrq); in sdhci_auto_cmd_select()
1403 if (host->version >= SDHCI_SPEC_410 && host->v4_mode && in sdhci_auto_cmd_select()
1407 ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_auto_cmd_select()
1412 sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2); in sdhci_auto_cmd_select()
1427 static void sdhci_set_transfer_mode(struct sdhci_host *host, in sdhci_set_transfer_mode() argument
1434 if (host->quirks2 & in sdhci_set_transfer_mode()
1438 sdhci_writew(host, 0x0, SDHCI_TRANSFER_MODE); in sdhci_set_transfer_mode()
1441 mode = sdhci_readw(host, SDHCI_TRANSFER_MODE); in sdhci_set_transfer_mode()
1442 sdhci_writew(host, mode & ~(SDHCI_TRNS_AUTO_CMD12 | in sdhci_set_transfer_mode()
1448 WARN_ON(!host->data); in sdhci_set_transfer_mode()
1450 if (!(host->quirks2 & SDHCI_QUIRK2_SUPPORT_SINGLE)) in sdhci_set_transfer_mode()
1455 sdhci_auto_cmd_select(host, cmd, &mode); in sdhci_set_transfer_mode()
1456 if (sdhci_auto_cmd23(host, cmd->mrq)) in sdhci_set_transfer_mode()
1457 sdhci_writel(host, cmd->mrq->sbc->arg, SDHCI_ARGUMENT2); in sdhci_set_transfer_mode()
1462 if (host->flags & SDHCI_REQ_USE_DMA) in sdhci_set_transfer_mode()
1465 sdhci_writew(host, mode, SDHCI_TRANSFER_MODE); in sdhci_set_transfer_mode()
1468 static bool sdhci_needs_reset(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_needs_reset() argument
1470 return (!(host->flags & SDHCI_DEVICE_DEAD) && in sdhci_needs_reset()
1474 (host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST))); in sdhci_needs_reset()
1477 static void sdhci_set_mrq_done(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_set_mrq_done() argument
1482 if (host->mrqs_done[i] == mrq) { in sdhci_set_mrq_done()
1489 if (!host->mrqs_done[i]) { in sdhci_set_mrq_done()
1490 host->mrqs_done[i] = mrq; in sdhci_set_mrq_done()
1498 static void __sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq) in __sdhci_finish_mrq() argument
1500 if (host->cmd && host->cmd->mrq == mrq) in __sdhci_finish_mrq()
1501 host->cmd = NULL; in __sdhci_finish_mrq()
1503 if (host->data_cmd && host->data_cmd->mrq == mrq) in __sdhci_finish_mrq()
1504 host->data_cmd = NULL; in __sdhci_finish_mrq()
1506 if (host->deferred_cmd && host->deferred_cmd->mrq == mrq) in __sdhci_finish_mrq()
1507 host->deferred_cmd = NULL; in __sdhci_finish_mrq()
1509 if (host->data && host->data->mrq == mrq) in __sdhci_finish_mrq()
1510 host->data = NULL; in __sdhci_finish_mrq()
1512 if (sdhci_needs_reset(host, mrq)) in __sdhci_finish_mrq()
1513 host->pending_reset = true; in __sdhci_finish_mrq()
1515 sdhci_set_mrq_done(host, mrq); in __sdhci_finish_mrq()
1517 sdhci_del_timer(host, mrq); in __sdhci_finish_mrq()
1519 if (!sdhci_has_requests(host)) in __sdhci_finish_mrq()
1520 sdhci_led_deactivate(host); in __sdhci_finish_mrq()
1523 static void sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_finish_mrq() argument
1525 __sdhci_finish_mrq(host, mrq); in sdhci_finish_mrq()
1527 queue_work(host->complete_wq, &host->complete_work); in sdhci_finish_mrq()
1530 static void __sdhci_finish_data(struct sdhci_host *host, bool sw_data_timeout) in __sdhci_finish_data() argument
1532 struct mmc_command *data_cmd = host->data_cmd; in __sdhci_finish_data()
1533 struct mmc_data *data = host->data; in __sdhci_finish_data()
1535 host->data = NULL; in __sdhci_finish_data()
1536 host->data_cmd = NULL; in __sdhci_finish_data()
1543 if (!host->cmd || host->cmd == data_cmd) in __sdhci_finish_data()
1544 sdhci_do_reset(host, SDHCI_RESET_CMD); in __sdhci_finish_data()
1545 sdhci_do_reset(host, SDHCI_RESET_DATA); in __sdhci_finish_data()
1548 if ((host->flags & (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA)) == in __sdhci_finish_data()
1550 sdhci_adma_table_post(host, data); in __sdhci_finish_data()
1570 ((!data->mrq->sbc && !sdhci_auto_cmd12(host, data->mrq)) || in __sdhci_finish_data()
1578 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1581 host->cmd = NULL; in __sdhci_finish_data()
1582 if (!sdhci_send_command(host, data->stop)) { in __sdhci_finish_data()
1589 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1591 WARN_ON(host->deferred_cmd); in __sdhci_finish_data()
1592 host->deferred_cmd = data->stop; in __sdhci_finish_data()
1597 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1601 static void sdhci_finish_data(struct sdhci_host *host) in sdhci_finish_data() argument
1603 __sdhci_finish_data(host, false); in sdhci_finish_data()
1606 static bool sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_send_command() argument
1612 WARN_ON(host->cmd); in sdhci_send_command()
1617 if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) && in sdhci_send_command()
1630 if (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) in sdhci_send_command()
1633 host->cmd = cmd; in sdhci_send_command()
1634 host->data_timeout = 0; in sdhci_send_command()
1636 WARN_ON(host->data_cmd); in sdhci_send_command()
1637 host->data_cmd = cmd; in sdhci_send_command()
1638 sdhci_set_timeout(host, cmd); in sdhci_send_command()
1642 if (host->use_external_dma) in sdhci_send_command()
1643 sdhci_external_dma_prepare_data(host, cmd); in sdhci_send_command()
1645 sdhci_prepare_data(host, cmd); in sdhci_send_command()
1648 sdhci_writel(host, cmd->arg, SDHCI_ARGUMENT); in sdhci_send_command()
1650 sdhci_set_transfer_mode(host, cmd); in sdhci_send_command()
1682 if (host->data_timeout) in sdhci_send_command()
1683 timeout += nsecs_to_jiffies(host->data_timeout); in sdhci_send_command()
1688 sdhci_mod_timer(host, cmd->mrq, timeout); in sdhci_send_command()
1690 if (host->use_external_dma) in sdhci_send_command()
1691 sdhci_external_dma_pre_transfer(host, cmd); in sdhci_send_command()
1693 sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND); in sdhci_send_command()
1698 static bool sdhci_present_error(struct sdhci_host *host, in sdhci_present_error() argument
1701 if (!present || host->flags & SDHCI_DEVICE_DEAD) { in sdhci_present_error()
1709 static bool sdhci_send_command_retry(struct sdhci_host *host, in sdhci_send_command_retry() argument
1712 __releases(host->lock) in sdhci_send_command_retry()
1713 __acquires(host->lock) in sdhci_send_command_retry()
1715 struct mmc_command *deferred_cmd = host->deferred_cmd; in sdhci_send_command_retry()
1719 while (!sdhci_send_command(host, cmd)) { in sdhci_send_command_retry()
1722 mmc_hostname(host->mmc)); in sdhci_send_command_retry()
1723 sdhci_dumpregs(host); in sdhci_send_command_retry()
1728 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_command_retry()
1732 present = host->mmc->ops->get_cd(host->mmc); in sdhci_send_command_retry()
1734 spin_lock_irqsave(&host->lock, flags); in sdhci_send_command_retry()
1737 if (cmd == deferred_cmd && cmd != host->deferred_cmd) in sdhci_send_command_retry()
1740 if (sdhci_present_error(host, cmd, present)) in sdhci_send_command_retry()
1744 if (cmd == host->deferred_cmd) in sdhci_send_command_retry()
1745 host->deferred_cmd = NULL; in sdhci_send_command_retry()
1750 static void sdhci_read_rsp_136(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_read_rsp_136() argument
1756 cmd->resp[i] = sdhci_readl(host, reg); in sdhci_read_rsp_136()
1759 if (host->quirks2 & SDHCI_QUIRK2_RSP_136_HAS_CRC) in sdhci_read_rsp_136()
1770 static void sdhci_finish_command(struct sdhci_host *host) in sdhci_finish_command() argument
1772 struct mmc_command *cmd = host->cmd; in sdhci_finish_command()
1774 host->cmd = NULL; in sdhci_finish_command()
1778 sdhci_read_rsp_136(host, cmd); in sdhci_finish_command()
1780 cmd->resp[0] = sdhci_readl(host, SDHCI_RESPONSE); in sdhci_finish_command()
1785 mmc_command_done(host->mmc, cmd->mrq); in sdhci_finish_command()
1788 * The host can send and interrupt when the busy state has in sdhci_finish_command()
1800 } else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ) && in sdhci_finish_command()
1801 cmd == host->data_cmd) { in sdhci_finish_command()
1809 if (!sdhci_send_command(host, cmd->mrq->cmd)) { in sdhci_finish_command()
1810 WARN_ON(host->deferred_cmd); in sdhci_finish_command()
1811 host->deferred_cmd = cmd->mrq->cmd; in sdhci_finish_command()
1816 if (host->data && host->data_early) in sdhci_finish_command()
1817 sdhci_finish_data(host); in sdhci_finish_command()
1820 __sdhci_finish_mrq(host, cmd->mrq); in sdhci_finish_command()
1824 static u16 sdhci_get_preset_value(struct sdhci_host *host) in sdhci_get_preset_value() argument
1828 switch (host->timing) { in sdhci_get_preset_value()
1831 preset = sdhci_readw(host, SDHCI_PRESET_FOR_HIGH_SPEED); in sdhci_get_preset_value()
1834 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR12); in sdhci_get_preset_value()
1837 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR25); in sdhci_get_preset_value()
1840 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR50); in sdhci_get_preset_value()
1844 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR104); in sdhci_get_preset_value()
1848 preset = sdhci_readw(host, SDHCI_PRESET_FOR_DDR50); in sdhci_get_preset_value()
1851 preset = sdhci_readw(host, SDHCI_PRESET_FOR_HS400); in sdhci_get_preset_value()
1855 mmc_hostname(host->mmc)); in sdhci_get_preset_value()
1856 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR12); in sdhci_get_preset_value()
1862 u16 sdhci_calc_clk(struct sdhci_host *host, unsigned int clock, in sdhci_calc_clk() argument
1870 if (host->version >= SDHCI_SPEC_300) { in sdhci_calc_clk()
1871 if (host->preset_enabled) { in sdhci_calc_clk()
1874 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_calc_clk()
1875 pre_val = sdhci_get_preset_value(host); in sdhci_calc_clk()
1877 if (host->clk_mul && in sdhci_calc_clk()
1881 clk_mul = host->clk_mul; in sdhci_calc_clk()
1889 * Check if the Host Controller supports Programmable Clock in sdhci_calc_clk()
1892 if (host->clk_mul) { in sdhci_calc_clk()
1894 if ((host->max_clk * host->clk_mul / div) in sdhci_calc_clk()
1898 if ((host->max_clk * host->clk_mul / div) <= clock) { in sdhci_calc_clk()
1905 clk_mul = host->clk_mul; in sdhci_calc_clk()
1916 if (!host->clk_mul || switch_base_clk) { in sdhci_calc_clk()
1918 if (host->max_clk <= clock) in sdhci_calc_clk()
1923 if ((host->max_clk / div) <= clock) in sdhci_calc_clk()
1929 if ((host->quirks2 & SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN) in sdhci_calc_clk()
1930 && !div && host->max_clk <= 25000000) in sdhci_calc_clk()
1936 if ((host->max_clk / div) <= clock) in sdhci_calc_clk()
1945 *actual_clock = (host->max_clk * clk_mul) / real_div; in sdhci_calc_clk()
1954 void sdhci_enable_clk(struct sdhci_host *host, u16 clk) in sdhci_enable_clk() argument
1959 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1966 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1971 mmc_hostname(host->mmc)); in sdhci_enable_clk()
1972 sdhci_dumpregs(host); in sdhci_enable_clk()
1978 if (host->version >= SDHCI_SPEC_410 && host->v4_mode) { in sdhci_enable_clk()
1981 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1988 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1993 mmc_hostname(host->mmc)); in sdhci_enable_clk()
1994 sdhci_dumpregs(host); in sdhci_enable_clk()
2002 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
2006 void sdhci_set_clock(struct sdhci_host *host, unsigned int clock) in sdhci_set_clock() argument
2010 host->mmc->actual_clock = 0; in sdhci_set_clock()
2012 sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL); in sdhci_set_clock()
2017 clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock); in sdhci_set_clock()
2018 sdhci_enable_clk(host, clk); in sdhci_set_clock()
2022 static void sdhci_set_power_reg(struct sdhci_host *host, unsigned char mode, in sdhci_set_power_reg() argument
2025 struct mmc_host *mmc = host->mmc; in sdhci_set_power_reg()
2030 sdhci_writeb(host, SDHCI_POWER_ON, SDHCI_POWER_CONTROL); in sdhci_set_power_reg()
2032 sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); in sdhci_set_power_reg()
2035 void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode, in sdhci_set_power_noreg() argument
2068 mmc_hostname(host->mmc), vdd); in sdhci_set_power_noreg()
2073 if (host->pwr == pwr) in sdhci_set_power_noreg()
2076 host->pwr = pwr; in sdhci_set_power_noreg()
2079 sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2080 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_set_power_noreg()
2081 sdhci_runtime_pm_bus_off(host); in sdhci_set_power_noreg()
2087 if (!(host->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE)) in sdhci_set_power_noreg()
2088 sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2095 if (host->quirks & SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER) in sdhci_set_power_noreg()
2096 sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2100 sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2102 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_set_power_noreg()
2103 sdhci_runtime_pm_bus_on(host); in sdhci_set_power_noreg()
2109 if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER) in sdhci_set_power_noreg()
2115 void sdhci_set_power(struct sdhci_host *host, unsigned char mode, in sdhci_set_power() argument
2118 if (IS_ERR(host->mmc->supply.vmmc)) in sdhci_set_power()
2119 sdhci_set_power_noreg(host, mode, vdd); in sdhci_set_power()
2121 sdhci_set_power_reg(host, mode, vdd); in sdhci_set_power()
2131 void sdhci_set_power_and_bus_voltage(struct sdhci_host *host, in sdhci_set_power_and_bus_voltage() argument
2135 if (!IS_ERR(host->mmc->supply.vmmc)) { in sdhci_set_power_and_bus_voltage()
2136 struct mmc_host *mmc = host->mmc; in sdhci_set_power_and_bus_voltage()
2140 sdhci_set_power_noreg(host, mode, vdd); in sdhci_set_power_and_bus_voltage()
2152 struct sdhci_host *host = mmc_priv(mmc); in sdhci_request() local
2160 spin_lock_irqsave(&host->lock, flags); in sdhci_request()
2162 sdhci_led_activate(host); in sdhci_request()
2164 if (sdhci_present_error(host, mrq->cmd, present)) in sdhci_request()
2167 cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; in sdhci_request()
2169 if (!sdhci_send_command_retry(host, cmd, flags)) in sdhci_request()
2172 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request()
2177 sdhci_finish_mrq(host, mrq); in sdhci_request()
2178 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request()
2184 struct sdhci_host *host = mmc_priv(mmc); in sdhci_request_atomic() local
2189 spin_lock_irqsave(&host->lock, flags); in sdhci_request_atomic()
2191 if (sdhci_present_error(host, mrq->cmd, true)) { in sdhci_request_atomic()
2192 sdhci_finish_mrq(host, mrq); in sdhci_request_atomic()
2196 cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; in sdhci_request_atomic()
2205 if (!sdhci_send_command(host, cmd)) in sdhci_request_atomic()
2208 sdhci_led_activate(host); in sdhci_request_atomic()
2211 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_atomic()
2216 void sdhci_set_bus_width(struct sdhci_host *host, int width) in sdhci_set_bus_width() argument
2220 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in sdhci_set_bus_width()
2225 if (host->mmc->caps & MMC_CAP_8_BIT_DATA) in sdhci_set_bus_width()
2232 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_bus_width()
2236 void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing) in sdhci_set_uhs_signaling() argument
2240 ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_set_uhs_signaling()
2241 /* Select Bus Speed Mode for host */ in sdhci_set_uhs_signaling()
2257 sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2); in sdhci_set_uhs_signaling()
2263 struct sdhci_host *host = mmc_priv(mmc); in sdhci_set_ios() local
2269 if (host->flags & SDHCI_DEVICE_DEAD) { in sdhci_set_ios()
2281 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in sdhci_set_ios()
2282 sdhci_reinit(host); in sdhci_set_ios()
2285 if (host->version >= SDHCI_SPEC_300 && in sdhci_set_ios()
2287 !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) in sdhci_set_ios()
2288 sdhci_enable_preset_value(host, false); in sdhci_set_ios()
2290 if (!ios->clock || ios->clock != host->clock) { in sdhci_set_ios()
2291 host->ops->set_clock(host, ios->clock); in sdhci_set_ios()
2292 host->clock = ios->clock; in sdhci_set_ios()
2294 if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK && in sdhci_set_ios()
2295 host->clock) { in sdhci_set_ios()
2296 host->timeout_clk = host->mmc->actual_clock ? in sdhci_set_ios()
2297 host->mmc->actual_clock / 1000 : in sdhci_set_ios()
2298 host->clock / 1000; in sdhci_set_ios()
2299 host->mmc->max_busy_timeout = in sdhci_set_ios()
2300 host->ops->get_max_timeout_count ? in sdhci_set_ios()
2301 host->ops->get_max_timeout_count(host) : in sdhci_set_ios()
2303 host->mmc->max_busy_timeout /= host->timeout_clk; in sdhci_set_ios()
2307 if (host->ops->set_power) in sdhci_set_ios()
2308 host->ops->set_power(host, ios->power_mode, ios->vdd); in sdhci_set_ios()
2310 sdhci_set_power(host, ios->power_mode, ios->vdd); in sdhci_set_ios()
2312 if (host->ops->platform_send_init_74_clocks) in sdhci_set_ios()
2313 host->ops->platform_send_init_74_clocks(host, ios->power_mode); in sdhci_set_ios()
2315 host->ops->set_bus_width(host, ios->bus_width); in sdhci_set_ios()
2317 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2319 if (!(host->quirks & SDHCI_QUIRK_NO_HISPD_BIT)) { in sdhci_set_ios()
2334 if (host->version >= SDHCI_SPEC_300) { in sdhci_set_ios()
2337 if (!host->preset_enabled) { in sdhci_set_ios()
2338 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2343 ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_set_ios()
2359 sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2); in sdhci_set_ios()
2363 * Enable in the Host Control 2 register is set, we in sdhci_set_ios()
2369 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2371 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2373 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2376 host->ops->set_clock(host, host->clock); in sdhci_set_ios()
2380 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2382 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2384 host->ops->set_uhs_signaling(host, ios->timing); in sdhci_set_ios()
2385 host->timing = ios->timing; in sdhci_set_ios()
2387 if (!(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN) && in sdhci_set_ios()
2396 sdhci_enable_preset_value(host, true); in sdhci_set_ios()
2397 preset = sdhci_get_preset_value(host); in sdhci_set_ios()
2403 host->ops->set_clock(host, host->clock); in sdhci_set_ios()
2405 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2412 if (host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS) in sdhci_set_ios()
2413 sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA); in sdhci_set_ios()
2419 struct sdhci_host *host = mmc_priv(mmc); in sdhci_get_cd() local
2422 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_get_cd()
2426 if (!mmc_card_is_removable(host->mmc)) in sdhci_get_cd()
2437 if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) in sdhci_get_cd()
2440 /* Host native card detect */ in sdhci_get_cd()
2441 return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT); in sdhci_get_cd()
2444 static int sdhci_check_ro(struct sdhci_host *host) in sdhci_check_ro() argument
2449 spin_lock_irqsave(&host->lock, flags); in sdhci_check_ro()
2451 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_check_ro()
2453 else if (host->ops->get_ro) in sdhci_check_ro()
2454 is_readonly = host->ops->get_ro(host); in sdhci_check_ro()
2455 else if (mmc_can_gpio_ro(host->mmc)) in sdhci_check_ro()
2456 is_readonly = mmc_gpio_get_ro(host->mmc); in sdhci_check_ro()
2458 is_readonly = !(sdhci_readl(host, SDHCI_PRESENT_STATE) in sdhci_check_ro()
2461 spin_unlock_irqrestore(&host->lock, flags); in sdhci_check_ro()
2464 return host->quirks & SDHCI_QUIRK_INVERTED_WRITE_PROTECT ? in sdhci_check_ro()
2472 struct sdhci_host *host = mmc_priv(mmc); in sdhci_get_ro() local
2475 if (!(host->quirks & SDHCI_QUIRK_UNSTABLE_RO_DETECT)) in sdhci_get_ro()
2476 return sdhci_check_ro(host); in sdhci_get_ro()
2480 if (sdhci_check_ro(host)) { in sdhci_get_ro()
2491 struct sdhci_host *host = mmc_priv(mmc); in sdhci_hw_reset() local
2493 if (host->ops && host->ops->hw_reset) in sdhci_hw_reset()
2494 host->ops->hw_reset(host); in sdhci_hw_reset()
2497 static void sdhci_enable_sdio_irq_nolock(struct sdhci_host *host, int enable) in sdhci_enable_sdio_irq_nolock() argument
2499 if (!(host->flags & SDHCI_DEVICE_DEAD)) { in sdhci_enable_sdio_irq_nolock()
2501 host->ier |= SDHCI_INT_CARD_INT; in sdhci_enable_sdio_irq_nolock()
2503 host->ier &= ~SDHCI_INT_CARD_INT; in sdhci_enable_sdio_irq_nolock()
2505 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_enable_sdio_irq_nolock()
2506 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_enable_sdio_irq_nolock()
2512 struct sdhci_host *host = mmc_priv(mmc); in sdhci_enable_sdio_irq() local
2516 pm_runtime_get_noresume(host->mmc->parent); in sdhci_enable_sdio_irq()
2518 spin_lock_irqsave(&host->lock, flags); in sdhci_enable_sdio_irq()
2519 sdhci_enable_sdio_irq_nolock(host, enable); in sdhci_enable_sdio_irq()
2520 spin_unlock_irqrestore(&host->lock, flags); in sdhci_enable_sdio_irq()
2523 pm_runtime_put_noidle(host->mmc->parent); in sdhci_enable_sdio_irq()
2529 struct sdhci_host *host = mmc_priv(mmc); in sdhci_ack_sdio_irq() local
2532 spin_lock_irqsave(&host->lock, flags); in sdhci_ack_sdio_irq()
2533 sdhci_enable_sdio_irq_nolock(host, true); in sdhci_ack_sdio_irq()
2534 spin_unlock_irqrestore(&host->lock, flags); in sdhci_ack_sdio_irq()
2540 struct sdhci_host *host = mmc_priv(mmc); in sdhci_start_signal_voltage_switch() local
2545 * Signal Voltage Switching is only applicable for Host Controllers in sdhci_start_signal_voltage_switch()
2548 if (host->version < SDHCI_SPEC_300) in sdhci_start_signal_voltage_switch()
2551 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2555 if (!(host->flags & SDHCI_SIGNALING_330)) in sdhci_start_signal_voltage_switch()
2557 /* Set 1.8V Signal Enable in the Host Control2 register to 0 */ in sdhci_start_signal_voltage_switch()
2559 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2573 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2582 if (!(host->flags & SDHCI_SIGNALING_180)) in sdhci_start_signal_voltage_switch()
2594 * Enable 1.8V Signal Enable in the Host Control2 in sdhci_start_signal_voltage_switch()
2598 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2601 if (host->ops->voltage_switch) in sdhci_start_signal_voltage_switch()
2602 host->ops->voltage_switch(host); in sdhci_start_signal_voltage_switch()
2605 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2614 if (!(host->flags & SDHCI_SIGNALING_120)) in sdhci_start_signal_voltage_switch()
2634 struct sdhci_host *host = mmc_priv(mmc); in sdhci_card_busy() local
2638 present_state = sdhci_readl(host, SDHCI_PRESENT_STATE); in sdhci_card_busy()
2645 struct sdhci_host *host = mmc_priv(mmc); in sdhci_prepare_hs400_tuning() local
2648 spin_lock_irqsave(&host->lock, flags); in sdhci_prepare_hs400_tuning()
2649 host->flags |= SDHCI_HS400_TUNING; in sdhci_prepare_hs400_tuning()
2650 spin_unlock_irqrestore(&host->lock, flags); in sdhci_prepare_hs400_tuning()
2655 void sdhci_start_tuning(struct sdhci_host *host) in sdhci_start_tuning() argument
2659 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_tuning()
2661 if (host->quirks2 & SDHCI_QUIRK2_TUNING_WORK_AROUND) in sdhci_start_tuning()
2663 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_start_tuning()
2666 * As per the Host Controller spec v3.00, tuning command in sdhci_start_tuning()
2675 sdhci_writel(host, SDHCI_INT_DATA_AVAIL, SDHCI_INT_ENABLE); in sdhci_start_tuning()
2676 sdhci_writel(host, SDHCI_INT_DATA_AVAIL, SDHCI_SIGNAL_ENABLE); in sdhci_start_tuning()
2680 void sdhci_end_tuning(struct sdhci_host *host) in sdhci_end_tuning() argument
2682 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_end_tuning()
2683 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_end_tuning()
2687 void sdhci_reset_tuning(struct sdhci_host *host) in sdhci_reset_tuning() argument
2691 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_reset_tuning()
2694 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_reset_tuning()
2698 void sdhci_abort_tuning(struct sdhci_host *host, u32 opcode) in sdhci_abort_tuning() argument
2700 sdhci_reset_tuning(host); in sdhci_abort_tuning()
2702 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_abort_tuning()
2703 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_abort_tuning()
2705 sdhci_end_tuning(host); in sdhci_abort_tuning()
2707 mmc_abort_tuning(host->mmc, opcode); in sdhci_abort_tuning()
2718 void sdhci_send_tuning(struct sdhci_host *host, u32 opcode) in sdhci_send_tuning() argument
2720 struct mmc_host *mmc = host->mmc; in sdhci_send_tuning()
2724 u32 b = host->sdma_boundary; in sdhci_send_tuning()
2726 spin_lock_irqsave(&host->lock, flags); in sdhci_send_tuning()
2735 * block to the Host Controller. So we set the block size in sdhci_send_tuning()
2740 sdhci_writew(host, SDHCI_MAKE_BLKSZ(b, 128), SDHCI_BLOCK_SIZE); in sdhci_send_tuning()
2742 sdhci_writew(host, SDHCI_MAKE_BLKSZ(b, 64), SDHCI_BLOCK_SIZE); in sdhci_send_tuning()
2745 * The tuning block is sent by the card to the host controller. in sdhci_send_tuning()
2750 sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE); in sdhci_send_tuning()
2752 if (!sdhci_send_command_retry(host, &cmd, flags)) { in sdhci_send_tuning()
2753 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_tuning()
2754 host->tuning_done = 0; in sdhci_send_tuning()
2758 host->cmd = NULL; in sdhci_send_tuning()
2760 sdhci_del_timer(host, &mrq); in sdhci_send_tuning()
2762 host->tuning_done = 0; in sdhci_send_tuning()
2764 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_tuning()
2767 wait_event_timeout(host->buf_ready_int, (host->tuning_done == 1), in sdhci_send_tuning()
2773 static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode) in __sdhci_execute_tuning() argument
2781 for (i = 0; i < host->tuning_loop_count; i++) { in __sdhci_execute_tuning()
2784 sdhci_send_tuning(host, opcode); in __sdhci_execute_tuning()
2786 if (!host->tuning_done) { in __sdhci_execute_tuning()
2788 mmc_hostname(host->mmc)); in __sdhci_execute_tuning()
2789 sdhci_abort_tuning(host, opcode); in __sdhci_execute_tuning()
2794 if (host->tuning_delay > 0) in __sdhci_execute_tuning()
2795 mdelay(host->tuning_delay); in __sdhci_execute_tuning()
2797 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in __sdhci_execute_tuning()
2807 mmc_hostname(host->mmc)); in __sdhci_execute_tuning()
2808 sdhci_reset_tuning(host); in __sdhci_execute_tuning()
2814 struct sdhci_host *host = mmc_priv(mmc); in sdhci_execute_tuning() local
2819 hs400_tuning = host->flags & SDHCI_HS400_TUNING; in sdhci_execute_tuning()
2821 if (host->tuning_mode == SDHCI_TUNING_MODE_1) in sdhci_execute_tuning()
2822 tuning_count = host->tuning_count; in sdhci_execute_tuning()
2825 * The Host Controller needs tuning in case of SDR104 and DDR50 in sdhci_execute_tuning()
2828 * If the Host Controller supports the HS200 mode then the in sdhci_execute_tuning()
2831 switch (host->timing) { in sdhci_execute_tuning()
2851 if (host->flags & SDHCI_SDR50_NEEDS_TUNING) in sdhci_execute_tuning()
2859 if (host->ops->platform_execute_tuning) { in sdhci_execute_tuning()
2860 err = host->ops->platform_execute_tuning(host, opcode); in sdhci_execute_tuning()
2864 host->mmc->retune_period = tuning_count; in sdhci_execute_tuning()
2866 if (host->tuning_delay < 0) in sdhci_execute_tuning()
2867 host->tuning_delay = opcode == MMC_SEND_TUNING_BLOCK; in sdhci_execute_tuning()
2869 sdhci_start_tuning(host); in sdhci_execute_tuning()
2871 host->tuning_err = __sdhci_execute_tuning(host, opcode); in sdhci_execute_tuning()
2873 sdhci_end_tuning(host); in sdhci_execute_tuning()
2875 host->flags &= ~SDHCI_HS400_TUNING; in sdhci_execute_tuning()
2881 static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable) in sdhci_enable_preset_value() argument
2883 /* Host Controller v3.00 defines preset value registers */ in sdhci_enable_preset_value()
2884 if (host->version < SDHCI_SPEC_300) in sdhci_enable_preset_value()
2891 if (host->preset_enabled != enable) { in sdhci_enable_preset_value()
2892 u16 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_enable_preset_value()
2899 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_enable_preset_value()
2902 host->flags |= SDHCI_PV_ENABLED; in sdhci_enable_preset_value()
2904 host->flags &= ~SDHCI_PV_ENABLED; in sdhci_enable_preset_value()
2906 host->preset_enabled = enable; in sdhci_enable_preset_value()
2913 struct sdhci_host *host = mmc_priv(mmc); in sdhci_post_req() local
2917 dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, in sdhci_post_req()
2925 struct sdhci_host *host = mmc_priv(mmc); in sdhci_pre_req() local
2934 if (host->flags & SDHCI_REQ_USE_DMA && !host->bounce_buffer) in sdhci_pre_req()
2935 sdhci_pre_dma_transfer(host, mrq->data, COOKIE_PRE_MAPPED); in sdhci_pre_req()
2938 static void sdhci_error_out_mrqs(struct sdhci_host *host, int err) in sdhci_error_out_mrqs() argument
2940 if (host->data_cmd) { in sdhci_error_out_mrqs()
2941 host->data_cmd->error = err; in sdhci_error_out_mrqs()
2942 sdhci_finish_mrq(host, host->data_cmd->mrq); in sdhci_error_out_mrqs()
2945 if (host->cmd) { in sdhci_error_out_mrqs()
2946 host->cmd->error = err; in sdhci_error_out_mrqs()
2947 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_error_out_mrqs()
2953 struct sdhci_host *host = mmc_priv(mmc); in sdhci_card_event() local
2958 if (host->ops->card_event) in sdhci_card_event()
2959 host->ops->card_event(host); in sdhci_card_event()
2963 spin_lock_irqsave(&host->lock, flags); in sdhci_card_event()
2966 if (sdhci_has_requests(host) && !present) { in sdhci_card_event()
2968 mmc_hostname(host->mmc)); in sdhci_card_event()
2970 mmc_hostname(host->mmc)); in sdhci_card_event()
2972 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_card_event()
2973 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_card_event()
2975 sdhci_error_out_mrqs(host, -ENOMEDIUM); in sdhci_card_event()
2978 spin_unlock_irqrestore(&host->lock, flags); in sdhci_card_event()
3004 static bool sdhci_request_done(struct sdhci_host *host) in sdhci_request_done() argument
3010 spin_lock_irqsave(&host->lock, flags); in sdhci_request_done()
3013 mrq = host->mrqs_done[i]; in sdhci_request_done()
3019 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3027 if (sdhci_needs_reset(host, mrq)) { in sdhci_request_done()
3031 * also be in mrqs_done, otherwise host->cmd and host->data_cmd in sdhci_request_done()
3034 if (host->cmd || host->data_cmd) { in sdhci_request_done()
3035 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3040 if (host->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) in sdhci_request_done()
3042 host->ops->set_clock(host, host->clock); in sdhci_request_done()
3048 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_request_done()
3049 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_request_done()
3051 host->pending_reset = false; in sdhci_request_done()
3059 if (host->flags & SDHCI_REQ_USE_DMA) { in sdhci_request_done()
3062 if (host->use_external_dma && data && in sdhci_request_done()
3064 struct dma_chan *chan = sdhci_external_dma_channel(host, data); in sdhci_request_done()
3066 host->mrqs_done[i] = NULL; in sdhci_request_done()
3067 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3069 spin_lock_irqsave(&host->lock, flags); in sdhci_request_done()
3070 sdhci_set_mrq_done(host, mrq); in sdhci_request_done()
3074 if (host->bounce_buffer) { in sdhci_request_done()
3082 if (length > host->bounce_buffer_size) { in sdhci_request_done()
3084 mmc_hostname(host->mmc), in sdhci_request_done()
3085 host->bounce_buffer_size, in sdhci_request_done()
3088 length = host->bounce_buffer_size; in sdhci_request_done()
3091 host->mmc->parent, in sdhci_request_done()
3092 host->bounce_addr, in sdhci_request_done()
3093 host->bounce_buffer_size, in sdhci_request_done()
3097 host->bounce_buffer, in sdhci_request_done()
3102 host->mmc->parent, in sdhci_request_done()
3103 host->bounce_addr, in sdhci_request_done()
3104 host->bounce_buffer_size, in sdhci_request_done()
3109 dma_unmap_sg(mmc_dev(host->mmc), data->sg, in sdhci_request_done()
3117 host->mrqs_done[i] = NULL; in sdhci_request_done()
3119 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3121 if (host->ops->request_done) in sdhci_request_done()
3122 host->ops->request_done(host, mrq); in sdhci_request_done()
3124 mmc_request_done(host->mmc, mrq); in sdhci_request_done()
3131 struct sdhci_host *host = container_of(work, struct sdhci_host, in sdhci_complete_work() local
3134 while (!sdhci_request_done(host)) in sdhci_complete_work()
3140 struct sdhci_host *host; in sdhci_timeout_timer() local
3143 host = from_timer(host, t, timer); in sdhci_timeout_timer()
3145 spin_lock_irqsave(&host->lock, flags); in sdhci_timeout_timer()
3147 if (host->cmd && !sdhci_data_line_cmd(host->cmd)) { in sdhci_timeout_timer()
3149 mmc_hostname(host->mmc)); in sdhci_timeout_timer()
3150 sdhci_dumpregs(host); in sdhci_timeout_timer()
3152 host->cmd->error = -ETIMEDOUT; in sdhci_timeout_timer()
3153 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_timeout_timer()
3156 spin_unlock_irqrestore(&host->lock, flags); in sdhci_timeout_timer()
3161 struct sdhci_host *host; in sdhci_timeout_data_timer() local
3164 host = from_timer(host, t, data_timer); in sdhci_timeout_data_timer()
3166 spin_lock_irqsave(&host->lock, flags); in sdhci_timeout_data_timer()
3168 if (host->data || host->data_cmd || in sdhci_timeout_data_timer()
3169 (host->cmd && sdhci_data_line_cmd(host->cmd))) { in sdhci_timeout_data_timer()
3171 mmc_hostname(host->mmc)); in sdhci_timeout_data_timer()
3172 sdhci_dumpregs(host); in sdhci_timeout_data_timer()
3174 if (host->data) { in sdhci_timeout_data_timer()
3175 host->data->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3176 __sdhci_finish_data(host, true); in sdhci_timeout_data_timer()
3177 queue_work(host->complete_wq, &host->complete_work); in sdhci_timeout_data_timer()
3178 } else if (host->data_cmd) { in sdhci_timeout_data_timer()
3179 host->data_cmd->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3180 sdhci_finish_mrq(host, host->data_cmd->mrq); in sdhci_timeout_data_timer()
3182 host->cmd->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3183 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_timeout_data_timer()
3187 spin_unlock_irqrestore(&host->lock, flags); in sdhci_timeout_data_timer()
3196 static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *intmask_p) in sdhci_cmd_irq() argument
3199 if (intmask & SDHCI_INT_AUTO_CMD_ERR && host->data_cmd) { in sdhci_cmd_irq()
3200 struct mmc_request *mrq = host->data_cmd->mrq; in sdhci_cmd_irq()
3201 u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS); in sdhci_cmd_irq()
3207 if (!mrq->sbc && (host->flags & SDHCI_AUTO_CMD12)) { in sdhci_cmd_irq()
3213 if (!host->cmd) { in sdhci_cmd_irq()
3219 if (host->pending_reset) in sdhci_cmd_irq()
3222 mmc_hostname(host->mmc), (unsigned)intmask); in sdhci_cmd_irq()
3223 sdhci_dumpregs(host); in sdhci_cmd_irq()
3230 host->cmd->error = -ETIMEDOUT; in sdhci_cmd_irq()
3232 host->cmd->error = -EILSEQ; in sdhci_cmd_irq()
3235 if (host->cmd->data && in sdhci_cmd_irq()
3238 host->cmd = NULL; in sdhci_cmd_irq()
3243 __sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_cmd_irq()
3249 struct mmc_request *mrq = host->cmd->mrq; in sdhci_cmd_irq()
3250 u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS); in sdhci_cmd_irq()
3255 if (mrq->sbc && (host->flags & SDHCI_AUTO_CMD23)) { in sdhci_cmd_irq()
3257 __sdhci_finish_mrq(host, mrq); in sdhci_cmd_irq()
3263 sdhci_finish_command(host); in sdhci_cmd_irq()
3266 static void sdhci_adma_show_error(struct sdhci_host *host) in sdhci_adma_show_error() argument
3268 void *desc = host->adma_table; in sdhci_adma_show_error()
3269 dma_addr_t dma = host->adma_addr; in sdhci_adma_show_error()
3271 sdhci_dumpregs(host); in sdhci_adma_show_error()
3276 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_adma_show_error()
3290 desc += host->desc_sz; in sdhci_adma_show_error()
3291 dma += host->desc_sz; in sdhci_adma_show_error()
3298 static void sdhci_data_irq(struct sdhci_host *host, u32 intmask) in sdhci_data_irq() argument
3304 command = SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND)); in sdhci_data_irq()
3307 host->tuning_done = 1; in sdhci_data_irq()
3308 wake_up(&host->buf_ready_int); in sdhci_data_irq()
3313 if (!host->data) { in sdhci_data_irq()
3314 struct mmc_command *data_cmd = host->data_cmd; in sdhci_data_irq()
3323 host->data_cmd = NULL; in sdhci_data_irq()
3325 __sdhci_finish_mrq(host, data_cmd->mrq); in sdhci_data_irq()
3329 host->data_cmd = NULL; in sdhci_data_irq()
3335 if (host->cmd == data_cmd) in sdhci_data_irq()
3338 __sdhci_finish_mrq(host, data_cmd->mrq); in sdhci_data_irq()
3348 if (host->pending_reset) in sdhci_data_irq()
3352 mmc_hostname(host->mmc), (unsigned)intmask); in sdhci_data_irq()
3353 sdhci_dumpregs(host); in sdhci_data_irq()
3359 host->data->error = -ETIMEDOUT; in sdhci_data_irq()
3361 host->data->error = -EILSEQ; in sdhci_data_irq()
3363 SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND)) in sdhci_data_irq()
3365 host->data->error = -EILSEQ; in sdhci_data_irq()
3367 pr_err("%s: ADMA error: 0x%08x\n", mmc_hostname(host->mmc), in sdhci_data_irq()
3369 sdhci_adma_show_error(host); in sdhci_data_irq()
3370 host->data->error = -EIO; in sdhci_data_irq()
3371 if (host->ops->adma_workaround) in sdhci_data_irq()
3372 host->ops->adma_workaround(host, intmask); in sdhci_data_irq()
3375 if (host->data->error) in sdhci_data_irq()
3376 sdhci_finish_data(host); in sdhci_data_irq()
3379 sdhci_transfer_pio(host); in sdhci_data_irq()
3386 * According to the spec sdhci_readl(host, SDHCI_DMA_ADDRESS) in sdhci_data_irq()
3393 dmastart = sdhci_sdma_address(host); in sdhci_data_irq()
3394 dmanow = dmastart + host->data->bytes_xfered; in sdhci_data_irq()
3401 host->data->bytes_xfered = dmanow - dmastart; in sdhci_data_irq()
3403 &dmastart, host->data->bytes_xfered, &dmanow); in sdhci_data_irq()
3404 sdhci_set_sdma_addr(host, dmanow); in sdhci_data_irq()
3408 if (host->cmd == host->data_cmd) { in sdhci_data_irq()
3414 host->data_early = 1; in sdhci_data_irq()
3416 sdhci_finish_data(host); in sdhci_data_irq()
3422 static inline bool sdhci_defer_done(struct sdhci_host *host, in sdhci_defer_done() argument
3427 return host->pending_reset || host->always_defer_done || in sdhci_defer_done()
3428 ((host->flags & SDHCI_REQ_USE_DMA) && data && in sdhci_defer_done()
3436 struct sdhci_host *host = dev_id; in sdhci_irq() local
3441 spin_lock(&host->lock); in sdhci_irq()
3443 if (host->runtime_suspended) { in sdhci_irq()
3444 spin_unlock(&host->lock); in sdhci_irq()
3448 intmask = sdhci_readl(host, SDHCI_INT_STATUS); in sdhci_irq()
3457 if (host->ops->irq) { in sdhci_irq()
3458 intmask = host->ops->irq(host, intmask); in sdhci_irq()
3466 sdhci_writel(host, mask, SDHCI_INT_STATUS); in sdhci_irq()
3469 u32 present = sdhci_readl(host, SDHCI_PRESENT_STATE) & in sdhci_irq()
3483 host->ier &= ~(SDHCI_INT_CARD_INSERT | in sdhci_irq()
3485 host->ier |= present ? SDHCI_INT_CARD_REMOVE : in sdhci_irq()
3487 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_irq()
3488 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_irq()
3490 sdhci_writel(host, intmask & (SDHCI_INT_CARD_INSERT | in sdhci_irq()
3493 host->thread_isr |= intmask & (SDHCI_INT_CARD_INSERT | in sdhci_irq()
3499 sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, &intmask); in sdhci_irq()
3502 sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK); in sdhci_irq()
3506 mmc_hostname(host->mmc)); in sdhci_irq()
3509 mmc_retune_needed(host->mmc); in sdhci_irq()
3512 (host->ier & SDHCI_INT_CARD_INT)) { in sdhci_irq()
3513 sdhci_enable_sdio_irq_nolock(host, false); in sdhci_irq()
3514 sdio_signal_irq(host->mmc); in sdhci_irq()
3524 sdhci_writel(host, intmask, SDHCI_INT_STATUS); in sdhci_irq()
3530 intmask = sdhci_readl(host, SDHCI_INT_STATUS); in sdhci_irq()
3535 struct mmc_request *mrq = host->mrqs_done[i]; in sdhci_irq()
3540 if (sdhci_defer_done(host, mrq)) { in sdhci_irq()
3544 host->mrqs_done[i] = NULL; in sdhci_irq()
3548 if (host->deferred_cmd) in sdhci_irq()
3551 spin_unlock(&host->lock); in sdhci_irq()
3558 if (host->ops->request_done) in sdhci_irq()
3559 host->ops->request_done(host, mrqs_done[i]); in sdhci_irq()
3561 mmc_request_done(host->mmc, mrqs_done[i]); in sdhci_irq()
3566 mmc_hostname(host->mmc), unexpected); in sdhci_irq()
3567 sdhci_dumpregs(host); in sdhci_irq()
3575 struct sdhci_host *host = dev_id; in sdhci_thread_irq() local
3580 while (!sdhci_request_done(host)) in sdhci_thread_irq()
3583 spin_lock_irqsave(&host->lock, flags); in sdhci_thread_irq()
3585 isr = host->thread_isr; in sdhci_thread_irq()
3586 host->thread_isr = 0; in sdhci_thread_irq()
3588 cmd = host->deferred_cmd; in sdhci_thread_irq()
3589 if (cmd && !sdhci_send_command_retry(host, cmd, flags)) in sdhci_thread_irq()
3590 sdhci_finish_mrq(host, cmd->mrq); in sdhci_thread_irq()
3592 spin_unlock_irqrestore(&host->lock, flags); in sdhci_thread_irq()
3595 struct mmc_host *mmc = host->mmc; in sdhci_thread_irq()
3612 static bool sdhci_cd_irq_can_wakeup(struct sdhci_host *host) in sdhci_cd_irq_can_wakeup() argument
3614 return mmc_card_is_removable(host->mmc) && in sdhci_cd_irq_can_wakeup()
3615 !(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && in sdhci_cd_irq_can_wakeup()
3616 !mmc_can_gpio_cd(host->mmc); in sdhci_cd_irq_can_wakeup()
3622 * Table' in the SD Host Controller Standard Specification.
3627 static bool sdhci_enable_irq_wakeups(struct sdhci_host *host) in sdhci_enable_irq_wakeups() argument
3635 if (sdhci_cd_irq_can_wakeup(host)) { in sdhci_enable_irq_wakeups()
3640 if (mmc_card_wake_sdio_irq(host->mmc)) { in sdhci_enable_irq_wakeups()
3648 val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL); in sdhci_enable_irq_wakeups()
3651 sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL); in sdhci_enable_irq_wakeups()
3653 sdhci_writel(host, irq_val, SDHCI_INT_ENABLE); in sdhci_enable_irq_wakeups()
3655 host->irq_wake_enabled = !enable_irq_wake(host->irq); in sdhci_enable_irq_wakeups()
3657 return host->irq_wake_enabled; in sdhci_enable_irq_wakeups()
3660 static void sdhci_disable_irq_wakeups(struct sdhci_host *host) in sdhci_disable_irq_wakeups() argument
3666 val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL); in sdhci_disable_irq_wakeups()
3668 sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL); in sdhci_disable_irq_wakeups()
3670 disable_irq_wake(host->irq); in sdhci_disable_irq_wakeups()
3672 host->irq_wake_enabled = false; in sdhci_disable_irq_wakeups()
3675 int sdhci_suspend_host(struct sdhci_host *host) in sdhci_suspend_host() argument
3677 sdhci_disable_card_detection(host); in sdhci_suspend_host()
3679 mmc_retune_timer_stop(host->mmc); in sdhci_suspend_host()
3681 if (!device_may_wakeup(mmc_dev(host->mmc)) || in sdhci_suspend_host()
3682 !sdhci_enable_irq_wakeups(host)) { in sdhci_suspend_host()
3683 host->ier = 0; in sdhci_suspend_host()
3684 sdhci_writel(host, 0, SDHCI_INT_ENABLE); in sdhci_suspend_host()
3685 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in sdhci_suspend_host()
3686 free_irq(host->irq, host); in sdhci_suspend_host()
3694 int sdhci_resume_host(struct sdhci_host *host) in sdhci_resume_host() argument
3696 struct mmc_host *mmc = host->mmc; in sdhci_resume_host()
3699 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_resume_host()
3700 if (host->ops->enable_dma) in sdhci_resume_host()
3701 host->ops->enable_dma(host); in sdhci_resume_host()
3704 if ((host->mmc->pm_flags & MMC_PM_KEEP_POWER) && in sdhci_resume_host()
3705 (host->quirks2 & SDHCI_QUIRK2_HOST_OFF_CARD_ON)) { in sdhci_resume_host()
3706 /* Card keeps power but host controller does not */ in sdhci_resume_host()
3707 sdhci_init(host, 0); in sdhci_resume_host()
3708 host->pwr = 0; in sdhci_resume_host()
3709 host->clock = 0; in sdhci_resume_host()
3712 sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER)); in sdhci_resume_host()
3715 if (host->irq_wake_enabled) { in sdhci_resume_host()
3716 sdhci_disable_irq_wakeups(host); in sdhci_resume_host()
3718 ret = request_threaded_irq(host->irq, sdhci_irq, in sdhci_resume_host()
3720 mmc_hostname(host->mmc), host); in sdhci_resume_host()
3725 sdhci_enable_card_detection(host); in sdhci_resume_host()
3732 int sdhci_runtime_suspend_host(struct sdhci_host *host) in sdhci_runtime_suspend_host() argument
3736 mmc_retune_timer_stop(host->mmc); in sdhci_runtime_suspend_host()
3738 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_suspend_host()
3739 host->ier &= SDHCI_INT_CARD_INT; in sdhci_runtime_suspend_host()
3740 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_runtime_suspend_host()
3741 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_runtime_suspend_host()
3742 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_suspend_host()
3744 synchronize_hardirq(host->irq); in sdhci_runtime_suspend_host()
3746 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_suspend_host()
3747 host->runtime_suspended = true; in sdhci_runtime_suspend_host()
3748 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_suspend_host()
3754 int sdhci_runtime_resume_host(struct sdhci_host *host, int soft_reset) in sdhci_runtime_resume_host() argument
3756 struct mmc_host *mmc = host->mmc; in sdhci_runtime_resume_host()
3758 int host_flags = host->flags; in sdhci_runtime_resume_host()
3761 if (host->ops->enable_dma) in sdhci_runtime_resume_host()
3762 host->ops->enable_dma(host); in sdhci_runtime_resume_host()
3765 sdhci_init(host, soft_reset); in sdhci_runtime_resume_host()
3770 host->pwr = 0; in sdhci_runtime_resume_host()
3771 host->clock = 0; in sdhci_runtime_resume_host()
3776 !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) { in sdhci_runtime_resume_host()
3777 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_resume_host()
3778 sdhci_enable_preset_value(host, true); in sdhci_runtime_resume_host()
3779 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_resume_host()
3787 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_resume_host()
3789 host->runtime_suspended = false; in sdhci_runtime_resume_host()
3793 sdhci_enable_sdio_irq_nolock(host, true); in sdhci_runtime_resume_host()
3796 sdhci_enable_card_detection(host); in sdhci_runtime_resume_host()
3798 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_resume_host()
3814 struct sdhci_host *host = mmc_priv(mmc); in sdhci_cqe_enable() local
3818 spin_lock_irqsave(&host->lock, flags); in sdhci_cqe_enable()
3820 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in sdhci_cqe_enable()
3823 * Host from V4.10 supports ADMA3 DMA type. in sdhci_cqe_enable()
3827 if (host->v4_mode && (host->caps1 & SDHCI_CAN_DO_ADMA3)) in sdhci_cqe_enable()
3829 else if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_cqe_enable()
3833 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_cqe_enable()
3835 sdhci_writew(host, SDHCI_MAKE_BLKSZ(host->sdma_boundary, 512), in sdhci_cqe_enable()
3839 sdhci_set_timeout(host, NULL); in sdhci_cqe_enable()
3841 host->ier = host->cqe_ier; in sdhci_cqe_enable()
3843 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_cqe_enable()
3844 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_cqe_enable()
3846 host->cqe_on = true; in sdhci_cqe_enable()
3849 mmc_hostname(mmc), host->ier, in sdhci_cqe_enable()
3850 sdhci_readl(host, SDHCI_INT_STATUS)); in sdhci_cqe_enable()
3852 spin_unlock_irqrestore(&host->lock, flags); in sdhci_cqe_enable()
3858 struct sdhci_host *host = mmc_priv(mmc); in sdhci_cqe_disable() local
3861 spin_lock_irqsave(&host->lock, flags); in sdhci_cqe_disable()
3863 sdhci_set_default_irqs(host); in sdhci_cqe_disable()
3865 host->cqe_on = false; in sdhci_cqe_disable()
3868 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_cqe_disable()
3869 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_cqe_disable()
3873 mmc_hostname(mmc), host->ier, in sdhci_cqe_disable()
3874 sdhci_readl(host, SDHCI_INT_STATUS)); in sdhci_cqe_disable()
3876 spin_unlock_irqrestore(&host->lock, flags); in sdhci_cqe_disable()
3880 bool sdhci_cqe_irq(struct sdhci_host *host, u32 intmask, int *cmd_error, in sdhci_cqe_irq() argument
3885 if (!host->cqe_on) in sdhci_cqe_irq()
3905 mask = intmask & host->cqe_ier; in sdhci_cqe_irq()
3906 sdhci_writel(host, mask, SDHCI_INT_STATUS); in sdhci_cqe_irq()
3910 mmc_hostname(host->mmc)); in sdhci_cqe_irq()
3912 intmask &= ~(host->cqe_ier | SDHCI_INT_ERROR); in sdhci_cqe_irq()
3914 sdhci_writel(host, intmask, SDHCI_INT_STATUS); in sdhci_cqe_irq()
3916 mmc_hostname(host->mmc), intmask); in sdhci_cqe_irq()
3917 sdhci_dumpregs(host); in sdhci_cqe_irq()
3934 struct sdhci_host *host; in sdhci_alloc_host() local
3942 host = mmc_priv(mmc); in sdhci_alloc_host()
3943 host->mmc = mmc; in sdhci_alloc_host()
3944 host->mmc_host_ops = sdhci_ops; in sdhci_alloc_host()
3945 mmc->ops = &host->mmc_host_ops; in sdhci_alloc_host()
3947 host->flags = SDHCI_SIGNALING_330; in sdhci_alloc_host()
3949 host->cqe_ier = SDHCI_CQE_INT_MASK; in sdhci_alloc_host()
3950 host->cqe_err_ier = SDHCI_CQE_INT_ERR_MASK; in sdhci_alloc_host()
3952 host->tuning_delay = -1; in sdhci_alloc_host()
3953 host->tuning_loop_count = MAX_TUNING_LOOP; in sdhci_alloc_host()
3955 host->sdma_boundary = SDHCI_DEFAULT_BOUNDARY_ARG; in sdhci_alloc_host()
3962 host->adma_table_cnt = SDHCI_MAX_SEGS * 2 + 1; in sdhci_alloc_host()
3963 host->max_adma = 65536; in sdhci_alloc_host()
3965 return host; in sdhci_alloc_host()
3970 static int sdhci_set_dma_mask(struct sdhci_host *host) in sdhci_set_dma_mask() argument
3972 struct mmc_host *mmc = host->mmc; in sdhci_set_dma_mask()
3976 if (host->quirks2 & SDHCI_QUIRK2_BROKEN_64_BIT_DMA) in sdhci_set_dma_mask()
3977 host->flags &= ~SDHCI_USE_64_BIT_DMA; in sdhci_set_dma_mask()
3980 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_set_dma_mask()
3985 host->flags &= ~SDHCI_USE_64_BIT_DMA; in sdhci_set_dma_mask()
4000 void __sdhci_read_caps(struct sdhci_host *host, const u16 *ver, in __sdhci_read_caps() argument
4007 if (host->read_caps) in __sdhci_read_caps()
4010 host->read_caps = true; in __sdhci_read_caps()
4013 host->quirks = debug_quirks; in __sdhci_read_caps()
4016 host->quirks2 = debug_quirks2; in __sdhci_read_caps()
4018 sdhci_do_reset(host, SDHCI_RESET_ALL); in __sdhci_read_caps()
4020 if (host->v4_mode) in __sdhci_read_caps()
4021 sdhci_do_enable_v4_mode(host); in __sdhci_read_caps()
4023 device_property_read_u64_array(mmc_dev(host->mmc), in __sdhci_read_caps()
4025 device_property_read_u64_array(mmc_dev(host->mmc), in __sdhci_read_caps()
4028 v = ver ? *ver : sdhci_readw(host, SDHCI_HOST_VERSION); in __sdhci_read_caps()
4029 host->version = (v & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT; in __sdhci_read_caps()
4031 if (host->quirks & SDHCI_QUIRK_MISSING_CAPS) in __sdhci_read_caps()
4035 host->caps = *caps; in __sdhci_read_caps()
4037 host->caps = sdhci_readl(host, SDHCI_CAPABILITIES); in __sdhci_read_caps()
4038 host->caps &= ~lower_32_bits(dt_caps_mask); in __sdhci_read_caps()
4039 host->caps |= lower_32_bits(dt_caps); in __sdhci_read_caps()
4042 if (host->version < SDHCI_SPEC_300) in __sdhci_read_caps()
4046 host->caps1 = *caps1; in __sdhci_read_caps()
4048 host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1); in __sdhci_read_caps()
4049 host->caps1 &= ~upper_32_bits(dt_caps_mask); in __sdhci_read_caps()
4050 host->caps1 |= upper_32_bits(dt_caps); in __sdhci_read_caps()
4055 static void sdhci_allocate_bounce_buffer(struct sdhci_host *host) in sdhci_allocate_bounce_buffer() argument
4057 struct mmc_host *mmc = host->mmc; in sdhci_allocate_bounce_buffer()
4082 host->bounce_buffer = devm_kmalloc(mmc->parent, in sdhci_allocate_bounce_buffer()
4085 if (!host->bounce_buffer) { in sdhci_allocate_bounce_buffer()
4096 host->bounce_addr = dma_map_single(mmc->parent, in sdhci_allocate_bounce_buffer()
4097 host->bounce_buffer, in sdhci_allocate_bounce_buffer()
4100 ret = dma_mapping_error(mmc->parent, host->bounce_addr); in sdhci_allocate_bounce_buffer()
4104 host->bounce_buffer_size = bounce_size; in sdhci_allocate_bounce_buffer()
4115 static inline bool sdhci_can_64bit_dma(struct sdhci_host *host) in sdhci_can_64bit_dma() argument
4118 * According to SD Host Controller spec v4.10, bit[27] added from in sdhci_can_64bit_dma()
4122 if (host->version >= SDHCI_SPEC_410 && host->v4_mode) in sdhci_can_64bit_dma()
4123 return host->caps & SDHCI_CAN_64BIT_V4; in sdhci_can_64bit_dma()
4125 return host->caps & SDHCI_CAN_64BIT; in sdhci_can_64bit_dma()
4128 int sdhci_setup_host(struct sdhci_host *host) in sdhci_setup_host() argument
4138 WARN_ON(host == NULL); in sdhci_setup_host()
4139 if (host == NULL) in sdhci_setup_host()
4142 mmc = host->mmc; in sdhci_setup_host()
4146 * early before resetting the host and reading the capabilities so that in sdhci_setup_host()
4147 * the host can take the appropriate action if regulators are not in sdhci_setup_host()
4158 sdhci_readw(host, SDHCI_HOST_VERSION), in sdhci_setup_host()
4159 sdhci_readl(host, SDHCI_PRESENT_STATE)); in sdhci_setup_host()
4161 sdhci_readl(host, SDHCI_CAPABILITIES), in sdhci_setup_host()
4162 sdhci_readl(host, SDHCI_CAPABILITIES_1)); in sdhci_setup_host()
4164 sdhci_read_caps(host); in sdhci_setup_host()
4166 override_timeout_clk = host->timeout_clk; in sdhci_setup_host()
4168 if (host->version > SDHCI_SPEC_420) { in sdhci_setup_host()
4170 mmc_hostname(mmc), host->version); in sdhci_setup_host()
4173 if (host->quirks & SDHCI_QUIRK_FORCE_DMA) in sdhci_setup_host()
4174 host->flags |= SDHCI_USE_SDMA; in sdhci_setup_host()
4175 else if (!(host->caps & SDHCI_CAN_DO_SDMA)) in sdhci_setup_host()
4178 host->flags |= SDHCI_USE_SDMA; in sdhci_setup_host()
4180 if ((host->quirks & SDHCI_QUIRK_BROKEN_DMA) && in sdhci_setup_host()
4181 (host->flags & SDHCI_USE_SDMA)) { in sdhci_setup_host()
4183 host->flags &= ~SDHCI_USE_SDMA; in sdhci_setup_host()
4186 if ((host->version >= SDHCI_SPEC_200) && in sdhci_setup_host()
4187 (host->caps & SDHCI_CAN_DO_ADMA2)) in sdhci_setup_host()
4188 host->flags |= SDHCI_USE_ADMA; in sdhci_setup_host()
4190 if ((host->quirks & SDHCI_QUIRK_BROKEN_ADMA) && in sdhci_setup_host()
4191 (host->flags & SDHCI_USE_ADMA)) { in sdhci_setup_host()
4193 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4196 if (sdhci_can_64bit_dma(host)) in sdhci_setup_host()
4197 host->flags |= SDHCI_USE_64_BIT_DMA; in sdhci_setup_host()
4199 if (host->use_external_dma) { in sdhci_setup_host()
4200 ret = sdhci_external_dma_init(host); in sdhci_setup_host()
4208 sdhci_switch_external_dma(host, false); in sdhci_setup_host()
4211 host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA); in sdhci_setup_host()
4214 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_setup_host()
4215 if (host->ops->set_dma_mask) in sdhci_setup_host()
4216 ret = host->ops->set_dma_mask(host); in sdhci_setup_host()
4218 ret = sdhci_set_dma_mask(host); in sdhci_setup_host()
4220 if (!ret && host->ops->enable_dma) in sdhci_setup_host()
4221 ret = host->ops->enable_dma(host); in sdhci_setup_host()
4226 host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA); in sdhci_setup_host()
4233 if ((host->flags & SDHCI_USE_64_BIT_DMA) && !host->v4_mode) in sdhci_setup_host()
4234 host->flags &= ~SDHCI_USE_SDMA; in sdhci_setup_host()
4236 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4240 if (!(host->flags & SDHCI_USE_64_BIT_DMA)) in sdhci_setup_host()
4241 host->alloc_desc_sz = SDHCI_ADMA2_32_DESC_SZ; in sdhci_setup_host()
4242 else if (!host->alloc_desc_sz) in sdhci_setup_host()
4243 host->alloc_desc_sz = SDHCI_ADMA2_64_DESC_SZ(host); in sdhci_setup_host()
4245 host->desc_sz = host->alloc_desc_sz; in sdhci_setup_host()
4246 host->adma_table_sz = host->adma_table_cnt * host->desc_sz; in sdhci_setup_host()
4248 host->align_buffer_sz = SDHCI_MAX_SEGS * SDHCI_ADMA2_ALIGN; in sdhci_setup_host()
4254 host->align_buffer_sz + host->adma_table_sz, in sdhci_setup_host()
4259 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4260 } else if ((dma + host->align_buffer_sz) & in sdhci_setup_host()
4264 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4265 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_setup_host()
4266 host->adma_table_sz, buf, dma); in sdhci_setup_host()
4268 host->align_buffer = buf; in sdhci_setup_host()
4269 host->align_addr = dma; in sdhci_setup_host()
4271 host->adma_table = buf + host->align_buffer_sz; in sdhci_setup_host()
4272 host->adma_addr = dma + host->align_buffer_sz; in sdhci_setup_host()
4281 if (!(host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA))) { in sdhci_setup_host()
4282 host->dma_mask = DMA_BIT_MASK(64); in sdhci_setup_host()
4283 mmc_dev(mmc)->dma_mask = &host->dma_mask; in sdhci_setup_host()
4286 if (host->version >= SDHCI_SPEC_300) in sdhci_setup_host()
4287 host->max_clk = FIELD_GET(SDHCI_CLOCK_V3_BASE_MASK, host->caps); in sdhci_setup_host()
4289 host->max_clk = FIELD_GET(SDHCI_CLOCK_BASE_MASK, host->caps); in sdhci_setup_host()
4291 host->max_clk *= 1000000; in sdhci_setup_host()
4292 if (host->max_clk == 0 || host->quirks & in sdhci_setup_host()
4294 if (!host->ops->get_max_clock) { in sdhci_setup_host()
4300 host->max_clk = host->ops->get_max_clock(host); in sdhci_setup_host()
4304 * In case of Host Controller v3.00, find out whether clock in sdhci_setup_host()
4307 host->clk_mul = FIELD_GET(SDHCI_CLOCK_MUL_MASK, host->caps1); in sdhci_setup_host()
4315 if (host->clk_mul) in sdhci_setup_host()
4316 host->clk_mul += 1; in sdhci_setup_host()
4319 * Set host parameters. in sdhci_setup_host()
4321 max_clk = host->max_clk; in sdhci_setup_host()
4323 if (host->ops->get_min_clock) in sdhci_setup_host()
4324 mmc->f_min = host->ops->get_min_clock(host); in sdhci_setup_host()
4325 else if (host->version >= SDHCI_SPEC_300) { in sdhci_setup_host()
4326 if (host->clk_mul) in sdhci_setup_host()
4327 max_clk = host->max_clk * host->clk_mul; in sdhci_setup_host()
4332 mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300; in sdhci_setup_host()
4334 mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200; in sdhci_setup_host()
4339 if (!(host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)) { in sdhci_setup_host()
4340 host->timeout_clk = FIELD_GET(SDHCI_TIMEOUT_CLK_MASK, host->caps); in sdhci_setup_host()
4342 if (host->caps & SDHCI_TIMEOUT_CLK_UNIT) in sdhci_setup_host()
4343 host->timeout_clk *= 1000; in sdhci_setup_host()
4345 if (host->timeout_clk == 0) { in sdhci_setup_host()
4346 if (!host->ops->get_timeout_clock) { in sdhci_setup_host()
4353 host->timeout_clk = in sdhci_setup_host()
4354 DIV_ROUND_UP(host->ops->get_timeout_clock(host), in sdhci_setup_host()
4359 host->timeout_clk = override_timeout_clk; in sdhci_setup_host()
4361 mmc->max_busy_timeout = host->ops->get_max_timeout_count ? in sdhci_setup_host()
4362 host->ops->get_max_timeout_count(host) : 1 << 27; in sdhci_setup_host()
4363 mmc->max_busy_timeout /= host->timeout_clk; in sdhci_setup_host()
4366 if (host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT && in sdhci_setup_host()
4367 !host->ops->get_max_timeout_count) in sdhci_setup_host()
4373 if (host->quirks & SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12) in sdhci_setup_host()
4374 host->flags |= SDHCI_AUTO_CMD12; in sdhci_setup_host()
4380 if ((host->version >= SDHCI_SPEC_300) && in sdhci_setup_host()
4381 ((host->flags & SDHCI_USE_ADMA) || in sdhci_setup_host()
4382 !(host->flags & SDHCI_USE_SDMA) || host->v4_mode) && in sdhci_setup_host()
4383 !(host->quirks2 & SDHCI_QUIRK2_ACMD23_BROKEN)) { in sdhci_setup_host()
4384 host->flags |= SDHCI_AUTO_CMD23; in sdhci_setup_host()
4397 if (!(host->quirks & SDHCI_QUIRK_FORCE_1_BIT_DATA)) in sdhci_setup_host()
4400 if (host->quirks2 & SDHCI_QUIRK2_HOST_NO_CMD23) in sdhci_setup_host()
4403 if (host->caps & SDHCI_CAN_DO_HISPD) in sdhci_setup_host()
4406 if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && in sdhci_setup_host()
4408 mmc_gpio_get_cd(host->mmc) < 0) in sdhci_setup_host()
4414 host->sdhci_core_to_disable_vqmmc = !ret; in sdhci_setup_host()
4420 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | in sdhci_setup_host()
4427 host->flags &= ~SDHCI_SIGNALING_330; in sdhci_setup_host()
4437 if (host->quirks2 & SDHCI_QUIRK2_NO_1_8_V) { in sdhci_setup_host()
4438 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | in sdhci_setup_host()
4453 if (host->caps1 & (SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | in sdhci_setup_host()
4458 if (host->caps1 & SDHCI_SUPPORT_SDR104) { in sdhci_setup_host()
4463 if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200)) in sdhci_setup_host()
4465 } else if (host->caps1 & SDHCI_SUPPORT_SDR50) { in sdhci_setup_host()
4469 if (host->quirks2 & SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 && in sdhci_setup_host()
4470 (host->caps1 & SDHCI_SUPPORT_HS400)) in sdhci_setup_host()
4479 if ((host->caps1 & SDHCI_SUPPORT_DDR50) && in sdhci_setup_host()
4480 !(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50)) in sdhci_setup_host()
4483 /* Does the host need tuning for SDR50? */ in sdhci_setup_host()
4484 if (host->caps1 & SDHCI_USE_SDR50_TUNING) in sdhci_setup_host()
4485 host->flags |= SDHCI_SDR50_NEEDS_TUNING; in sdhci_setup_host()
4487 /* Driver Type(s) (A, C, D) supported by the host */ in sdhci_setup_host()
4488 if (host->caps1 & SDHCI_DRIVER_TYPE_A) in sdhci_setup_host()
4490 if (host->caps1 & SDHCI_DRIVER_TYPE_C) in sdhci_setup_host()
4492 if (host->caps1 & SDHCI_DRIVER_TYPE_D) in sdhci_setup_host()
4496 host->tuning_count = FIELD_GET(SDHCI_RETUNING_TIMER_COUNT_MASK, in sdhci_setup_host()
4497 host->caps1); in sdhci_setup_host()
4503 if (host->tuning_count) in sdhci_setup_host()
4504 host->tuning_count = 1 << (host->tuning_count - 1); in sdhci_setup_host()
4506 /* Re-tuning mode supported by the Host Controller */ in sdhci_setup_host()
4507 host->tuning_mode = FIELD_GET(SDHCI_RETUNING_MODE_MASK, host->caps1); in sdhci_setup_host()
4512 * According to SD Host Controller spec v3.00, if the Host System in sdhci_setup_host()
4513 * can afford more than 150mA, Host Driver should set XPC to 1. Also in sdhci_setup_host()
4518 max_current_caps = sdhci_readl(host, SDHCI_MAX_CURRENT); in sdhci_setup_host()
4535 if (host->caps & SDHCI_CAN_VDD_330) { in sdhci_setup_host()
4542 if (host->caps & SDHCI_CAN_VDD_300) { in sdhci_setup_host()
4549 if (host->caps & SDHCI_CAN_VDD_180) { in sdhci_setup_host()
4557 /* If OCR set by host, use it instead. */ in sdhci_setup_host()
4558 if (host->ocr_mask) in sdhci_setup_host()
4559 ocr_avail = host->ocr_mask; in sdhci_setup_host()
4567 if (host->ocr_avail_sdio) in sdhci_setup_host()
4568 mmc->ocr_avail_sdio &= host->ocr_avail_sdio; in sdhci_setup_host()
4570 if (host->ocr_avail_sd) in sdhci_setup_host()
4571 mmc->ocr_avail_sd &= host->ocr_avail_sd; in sdhci_setup_host()
4575 if (host->ocr_avail_mmc) in sdhci_setup_host()
4576 mmc->ocr_avail_mmc &= host->ocr_avail_mmc; in sdhci_setup_host()
4589 host->flags |= SDHCI_SIGNALING_180; in sdhci_setup_host()
4592 host->flags |= SDHCI_SIGNALING_120; in sdhci_setup_host()
4594 spin_lock_init(&host->lock); in sdhci_setup_host()
4607 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4609 } else if (host->flags & SDHCI_USE_SDMA) { in sdhci_setup_host()
4626 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4627 if (host->quirks & SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC) { in sdhci_setup_host()
4628 host->max_adma = 65532; /* 32-bit alignment */ in sdhci_setup_host()
4641 if (host->quirks & SDHCI_QUIRK_FORCE_BLK_SZ_2048) { in sdhci_setup_host()
4644 mmc->max_blk_size = (host->caps & SDHCI_MAX_BLOCK_MASK) >> in sdhci_setup_host()
4658 mmc->max_blk_count = (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535; in sdhci_setup_host()
4662 sdhci_allocate_bounce_buffer(host); in sdhci_setup_host()
4667 if (host->sdhci_core_to_disable_vqmmc) in sdhci_setup_host()
4670 if (host->align_buffer) in sdhci_setup_host()
4671 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_setup_host()
4672 host->adma_table_sz, host->align_buffer, in sdhci_setup_host()
4673 host->align_addr); in sdhci_setup_host()
4674 host->adma_table = NULL; in sdhci_setup_host()
4675 host->align_buffer = NULL; in sdhci_setup_host()
4681 void sdhci_cleanup_host(struct sdhci_host *host) in sdhci_cleanup_host() argument
4683 struct mmc_host *mmc = host->mmc; in sdhci_cleanup_host()
4685 if (host->sdhci_core_to_disable_vqmmc) in sdhci_cleanup_host()
4688 if (host->align_buffer) in sdhci_cleanup_host()
4689 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_cleanup_host()
4690 host->adma_table_sz, host->align_buffer, in sdhci_cleanup_host()
4691 host->align_addr); in sdhci_cleanup_host()
4693 if (host->use_external_dma) in sdhci_cleanup_host()
4694 sdhci_external_dma_release(host); in sdhci_cleanup_host()
4696 host->adma_table = NULL; in sdhci_cleanup_host()
4697 host->align_buffer = NULL; in sdhci_cleanup_host()
4701 int __sdhci_add_host(struct sdhci_host *host) in __sdhci_add_host() argument
4704 struct mmc_host *mmc = host->mmc; in __sdhci_add_host()
4708 (host->quirks & SDHCI_QUIRK_BROKEN_CQE)) { in __sdhci_add_host()
4713 host->complete_wq = alloc_workqueue("sdhci", flags, 0); in __sdhci_add_host()
4714 if (!host->complete_wq) in __sdhci_add_host()
4717 INIT_WORK(&host->complete_work, sdhci_complete_work); in __sdhci_add_host()
4719 timer_setup(&host->timer, sdhci_timeout_timer, 0); in __sdhci_add_host()
4720 timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); in __sdhci_add_host()
4722 init_waitqueue_head(&host->buf_ready_int); in __sdhci_add_host()
4724 sdhci_init(host, 0); in __sdhci_add_host()
4726 ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq, in __sdhci_add_host()
4727 IRQF_SHARED, mmc_hostname(mmc), host); in __sdhci_add_host()
4730 mmc_hostname(mmc), host->irq, ret); in __sdhci_add_host()
4734 ret = sdhci_led_register(host); in __sdhci_add_host()
4746 mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)), in __sdhci_add_host()
4747 host->use_external_dma ? "External DMA" : in __sdhci_add_host()
4748 (host->flags & SDHCI_USE_ADMA) ? in __sdhci_add_host()
4749 (host->flags & SDHCI_USE_64_BIT_DMA) ? "ADMA 64-bit" : "ADMA" : in __sdhci_add_host()
4750 (host->flags & SDHCI_USE_SDMA) ? "DMA" : "PIO"); in __sdhci_add_host()
4752 sdhci_enable_card_detection(host); in __sdhci_add_host()
4757 sdhci_led_unregister(host); in __sdhci_add_host()
4759 sdhci_do_reset(host, SDHCI_RESET_ALL); in __sdhci_add_host()
4760 sdhci_writel(host, 0, SDHCI_INT_ENABLE); in __sdhci_add_host()
4761 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in __sdhci_add_host()
4762 free_irq(host->irq, host); in __sdhci_add_host()
4764 destroy_workqueue(host->complete_wq); in __sdhci_add_host()
4770 int sdhci_add_host(struct sdhci_host *host) in sdhci_add_host() argument
4774 ret = sdhci_setup_host(host); in sdhci_add_host()
4778 ret = __sdhci_add_host(host); in sdhci_add_host()
4785 sdhci_cleanup_host(host); in sdhci_add_host()
4791 void sdhci_remove_host(struct sdhci_host *host, int dead) in sdhci_remove_host() argument
4793 struct mmc_host *mmc = host->mmc; in sdhci_remove_host()
4797 spin_lock_irqsave(&host->lock, flags); in sdhci_remove_host()
4799 host->flags |= SDHCI_DEVICE_DEAD; in sdhci_remove_host()
4801 if (sdhci_has_requests(host)) { in sdhci_remove_host()
4804 sdhci_error_out_mrqs(host, -ENOMEDIUM); in sdhci_remove_host()
4807 spin_unlock_irqrestore(&host->lock, flags); in sdhci_remove_host()
4810 sdhci_disable_card_detection(host); in sdhci_remove_host()
4814 sdhci_led_unregister(host); in sdhci_remove_host()
4817 sdhci_do_reset(host, SDHCI_RESET_ALL); in sdhci_remove_host()
4819 sdhci_writel(host, 0, SDHCI_INT_ENABLE); in sdhci_remove_host()
4820 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in sdhci_remove_host()
4821 free_irq(host->irq, host); in sdhci_remove_host()
4823 del_timer_sync(&host->timer); in sdhci_remove_host()
4824 del_timer_sync(&host->data_timer); in sdhci_remove_host()
4826 destroy_workqueue(host->complete_wq); in sdhci_remove_host()
4828 if (host->sdhci_core_to_disable_vqmmc) in sdhci_remove_host()
4831 if (host->align_buffer) in sdhci_remove_host()
4832 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_remove_host()
4833 host->adma_table_sz, host->align_buffer, in sdhci_remove_host()
4834 host->align_addr); in sdhci_remove_host()
4836 if (host->use_external_dma) in sdhci_remove_host()
4837 sdhci_external_dma_release(host); in sdhci_remove_host()
4839 host->adma_table = NULL; in sdhci_remove_host()
4840 host->align_buffer = NULL; in sdhci_remove_host()
4845 void sdhci_free_host(struct sdhci_host *host) in sdhci_free_host() argument
4847 mmc_free_host(host->mmc); in sdhci_free_host()
4861 ": Secure Digital Host Controller Interface driver\n"); in sdhci_drv_init()
4878 MODULE_DESCRIPTION("Secure Digital Host Controller Interface core driver");