Lines Matching full:host
3 * linux/drivers/mmc/host/sdhci.c - Secure Digital Host Controller Interface driver
31 #include <linux/mmc/host.h>
43 pr_debug("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
46 pr_err("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
53 static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable);
55 static bool sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd);
57 void sdhci_dumpregs(struct sdhci_host *host) in sdhci_dumpregs() argument
62 sdhci_readl(host, SDHCI_DMA_ADDRESS), in sdhci_dumpregs()
63 sdhci_readw(host, SDHCI_HOST_VERSION)); in sdhci_dumpregs()
65 sdhci_readw(host, SDHCI_BLOCK_SIZE), in sdhci_dumpregs()
66 sdhci_readw(host, SDHCI_BLOCK_COUNT)); in sdhci_dumpregs()
68 sdhci_readl(host, SDHCI_ARGUMENT), in sdhci_dumpregs()
69 sdhci_readw(host, SDHCI_TRANSFER_MODE)); in sdhci_dumpregs()
70 SDHCI_DUMP("Present: 0x%08x | Host ctl: 0x%08x\n", in sdhci_dumpregs()
71 sdhci_readl(host, SDHCI_PRESENT_STATE), in sdhci_dumpregs()
72 sdhci_readb(host, SDHCI_HOST_CONTROL)); in sdhci_dumpregs()
74 sdhci_readb(host, SDHCI_POWER_CONTROL), in sdhci_dumpregs()
75 sdhci_readb(host, SDHCI_BLOCK_GAP_CONTROL)); in sdhci_dumpregs()
77 sdhci_readb(host, SDHCI_WAKE_UP_CONTROL), in sdhci_dumpregs()
78 sdhci_readw(host, SDHCI_CLOCK_CONTROL)); in sdhci_dumpregs()
80 sdhci_readb(host, SDHCI_TIMEOUT_CONTROL), in sdhci_dumpregs()
81 sdhci_readl(host, SDHCI_INT_STATUS)); in sdhci_dumpregs()
83 sdhci_readl(host, SDHCI_INT_ENABLE), in sdhci_dumpregs()
84 sdhci_readl(host, SDHCI_SIGNAL_ENABLE)); in sdhci_dumpregs()
86 sdhci_readw(host, SDHCI_AUTO_CMD_STATUS), in sdhci_dumpregs()
87 sdhci_readw(host, SDHCI_SLOT_INT_STATUS)); in sdhci_dumpregs()
89 sdhci_readl(host, SDHCI_CAPABILITIES), in sdhci_dumpregs()
90 sdhci_readl(host, SDHCI_CAPABILITIES_1)); in sdhci_dumpregs()
92 sdhci_readw(host, SDHCI_COMMAND), in sdhci_dumpregs()
93 sdhci_readl(host, SDHCI_MAX_CURRENT)); in sdhci_dumpregs()
95 sdhci_readl(host, SDHCI_RESPONSE), in sdhci_dumpregs()
96 sdhci_readl(host, SDHCI_RESPONSE + 4)); in sdhci_dumpregs()
98 sdhci_readl(host, SDHCI_RESPONSE + 8), in sdhci_dumpregs()
99 sdhci_readl(host, SDHCI_RESPONSE + 12)); in sdhci_dumpregs()
100 SDHCI_DUMP("Host ctl2: 0x%08x\n", in sdhci_dumpregs()
101 sdhci_readw(host, SDHCI_HOST_CONTROL2)); in sdhci_dumpregs()
103 if (host->flags & SDHCI_USE_ADMA) { in sdhci_dumpregs()
104 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_dumpregs()
106 sdhci_readl(host, SDHCI_ADMA_ERROR), in sdhci_dumpregs()
107 sdhci_readl(host, SDHCI_ADMA_ADDRESS_HI), in sdhci_dumpregs()
108 sdhci_readl(host, SDHCI_ADMA_ADDRESS)); in sdhci_dumpregs()
111 sdhci_readl(host, SDHCI_ADMA_ERROR), in sdhci_dumpregs()
112 sdhci_readl(host, SDHCI_ADMA_ADDRESS)); in sdhci_dumpregs()
116 if (host->ops->dump_vendor_regs) in sdhci_dumpregs()
117 host->ops->dump_vendor_regs(host); in sdhci_dumpregs()
129 static void sdhci_do_enable_v4_mode(struct sdhci_host *host) in sdhci_do_enable_v4_mode() argument
133 ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_do_enable_v4_mode()
138 sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2); in sdhci_do_enable_v4_mode()
142 * This can be called before sdhci_add_host() by Vendor's host controller
145 void sdhci_enable_v4_mode(struct sdhci_host *host) in sdhci_enable_v4_mode() argument
147 host->v4_mode = true; in sdhci_enable_v4_mode()
148 sdhci_do_enable_v4_mode(host); in sdhci_enable_v4_mode()
157 static void sdhci_set_card_detection(struct sdhci_host *host, bool enable) in sdhci_set_card_detection() argument
161 if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) || in sdhci_set_card_detection()
162 !mmc_card_is_removable(host->mmc) || mmc_can_gpio_cd(host->mmc)) in sdhci_set_card_detection()
166 present = sdhci_readl(host, SDHCI_PRESENT_STATE) & in sdhci_set_card_detection()
169 host->ier |= present ? SDHCI_INT_CARD_REMOVE : in sdhci_set_card_detection()
172 host->ier &= ~(SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT); in sdhci_set_card_detection()
175 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_card_detection()
176 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_card_detection()
179 static void sdhci_enable_card_detection(struct sdhci_host *host) in sdhci_enable_card_detection() argument
181 sdhci_set_card_detection(host, true); in sdhci_enable_card_detection()
184 static void sdhci_disable_card_detection(struct sdhci_host *host) in sdhci_disable_card_detection() argument
186 sdhci_set_card_detection(host, false); in sdhci_disable_card_detection()
189 static void sdhci_runtime_pm_bus_on(struct sdhci_host *host) in sdhci_runtime_pm_bus_on() argument
191 if (host->bus_on) in sdhci_runtime_pm_bus_on()
193 host->bus_on = true; in sdhci_runtime_pm_bus_on()
194 pm_runtime_get_noresume(host->mmc->parent); in sdhci_runtime_pm_bus_on()
197 static void sdhci_runtime_pm_bus_off(struct sdhci_host *host) in sdhci_runtime_pm_bus_off() argument
199 if (!host->bus_on) in sdhci_runtime_pm_bus_off()
201 host->bus_on = false; in sdhci_runtime_pm_bus_off()
202 pm_runtime_put_noidle(host->mmc->parent); in sdhci_runtime_pm_bus_off()
205 void sdhci_reset(struct sdhci_host *host, u8 mask) in sdhci_reset() argument
209 sdhci_writeb(host, mask, SDHCI_SOFTWARE_RESET); in sdhci_reset()
212 host->clock = 0; in sdhci_reset()
214 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_reset()
215 sdhci_runtime_pm_bus_off(host); in sdhci_reset()
225 if (!(sdhci_readb(host, SDHCI_SOFTWARE_RESET) & mask)) in sdhci_reset()
229 mmc_hostname(host->mmc), (int)mask); in sdhci_reset()
230 sdhci_dumpregs(host); in sdhci_reset()
238 static void sdhci_do_reset(struct sdhci_host *host, u8 mask) in sdhci_do_reset() argument
240 if (host->quirks & SDHCI_QUIRK_NO_CARD_NO_RESET) { in sdhci_do_reset()
241 struct mmc_host *mmc = host->mmc; in sdhci_do_reset()
247 host->ops->reset(host, mask); in sdhci_do_reset()
250 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_do_reset()
251 if (host->ops->enable_dma) in sdhci_do_reset()
252 host->ops->enable_dma(host); in sdhci_do_reset()
256 host->preset_enabled = false; in sdhci_do_reset()
260 static void sdhci_set_default_irqs(struct sdhci_host *host) in sdhci_set_default_irqs() argument
262 host->ier = SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT | in sdhci_set_default_irqs()
268 if (host->tuning_mode == SDHCI_TUNING_MODE_2 || in sdhci_set_default_irqs()
269 host->tuning_mode == SDHCI_TUNING_MODE_3) in sdhci_set_default_irqs()
270 host->ier |= SDHCI_INT_RETUNE; in sdhci_set_default_irqs()
272 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_default_irqs()
273 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_default_irqs()
276 static void sdhci_config_dma(struct sdhci_host *host) in sdhci_config_dma() argument
281 if (host->version < SDHCI_SPEC_200) in sdhci_config_dma()
284 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in sdhci_config_dma()
292 if (!(host->flags & SDHCI_REQ_USE_DMA)) in sdhci_config_dma()
296 if (host->flags & SDHCI_USE_ADMA) in sdhci_config_dma()
299 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_config_dma()
305 if (host->v4_mode) { in sdhci_config_dma()
306 ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_config_dma()
308 sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2); in sdhci_config_dma()
309 } else if (host->flags & SDHCI_USE_ADMA) { in sdhci_config_dma()
319 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_config_dma()
322 static void sdhci_init(struct sdhci_host *host, int soft) in sdhci_init() argument
324 struct mmc_host *mmc = host->mmc; in sdhci_init()
328 sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA); in sdhci_init()
330 sdhci_do_reset(host, SDHCI_RESET_ALL); in sdhci_init()
332 if (host->v4_mode) in sdhci_init()
333 sdhci_do_enable_v4_mode(host); in sdhci_init()
335 spin_lock_irqsave(&host->lock, flags); in sdhci_init()
336 sdhci_set_default_irqs(host); in sdhci_init()
337 spin_unlock_irqrestore(&host->lock, flags); in sdhci_init()
339 host->cqe_on = false; in sdhci_init()
343 host->clock = 0; in sdhci_init()
348 static void sdhci_reinit(struct sdhci_host *host) in sdhci_reinit() argument
350 u32 cd = host->ier & (SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT); in sdhci_reinit()
352 sdhci_init(host, 0); in sdhci_reinit()
353 sdhci_enable_card_detection(host); in sdhci_reinit()
358 * been missed while the host controller was being reset, so trigger a in sdhci_reinit()
361 if (cd != (host->ier & (SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT))) in sdhci_reinit()
362 mmc_detect_change(host->mmc, msecs_to_jiffies(200)); in sdhci_reinit()
365 static void __sdhci_led_activate(struct sdhci_host *host) in __sdhci_led_activate() argument
369 if (host->quirks & SDHCI_QUIRK_NO_LED) in __sdhci_led_activate()
372 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in __sdhci_led_activate()
374 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in __sdhci_led_activate()
377 static void __sdhci_led_deactivate(struct sdhci_host *host) in __sdhci_led_deactivate() argument
381 if (host->quirks & SDHCI_QUIRK_NO_LED) in __sdhci_led_deactivate()
384 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in __sdhci_led_deactivate()
386 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in __sdhci_led_deactivate()
393 struct sdhci_host *host = container_of(led, struct sdhci_host, led); in sdhci_led_control() local
396 spin_lock_irqsave(&host->lock, flags); in sdhci_led_control()
398 if (host->runtime_suspended) in sdhci_led_control()
402 __sdhci_led_deactivate(host); in sdhci_led_control()
404 __sdhci_led_activate(host); in sdhci_led_control()
406 spin_unlock_irqrestore(&host->lock, flags); in sdhci_led_control()
409 static int sdhci_led_register(struct sdhci_host *host) in sdhci_led_register() argument
411 struct mmc_host *mmc = host->mmc; in sdhci_led_register()
413 if (host->quirks & SDHCI_QUIRK_NO_LED) in sdhci_led_register()
416 snprintf(host->led_name, sizeof(host->led_name), in sdhci_led_register()
419 host->led.name = host->led_name; in sdhci_led_register()
420 host->led.brightness = LED_OFF; in sdhci_led_register()
421 host->led.default_trigger = mmc_hostname(mmc); in sdhci_led_register()
422 host->led.brightness_set = sdhci_led_control; in sdhci_led_register()
424 return led_classdev_register(mmc_dev(mmc), &host->led); in sdhci_led_register()
427 static void sdhci_led_unregister(struct sdhci_host *host) in sdhci_led_unregister() argument
429 if (host->quirks & SDHCI_QUIRK_NO_LED) in sdhci_led_unregister()
432 led_classdev_unregister(&host->led); in sdhci_led_unregister()
435 static inline void sdhci_led_activate(struct sdhci_host *host) in sdhci_led_activate() argument
439 static inline void sdhci_led_deactivate(struct sdhci_host *host) in sdhci_led_deactivate() argument
445 static inline int sdhci_led_register(struct sdhci_host *host) in sdhci_led_register() argument
450 static inline void sdhci_led_unregister(struct sdhci_host *host) in sdhci_led_unregister() argument
454 static inline void sdhci_led_activate(struct sdhci_host *host) in sdhci_led_activate() argument
456 __sdhci_led_activate(host); in sdhci_led_activate()
459 static inline void sdhci_led_deactivate(struct sdhci_host *host) in sdhci_led_deactivate() argument
461 __sdhci_led_deactivate(host); in sdhci_led_deactivate()
466 static void sdhci_mod_timer(struct sdhci_host *host, struct mmc_request *mrq, in sdhci_mod_timer() argument
470 mod_timer(&host->data_timer, timeout); in sdhci_mod_timer()
472 mod_timer(&host->timer, timeout); in sdhci_mod_timer()
475 static void sdhci_del_timer(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_del_timer() argument
478 del_timer(&host->data_timer); in sdhci_del_timer()
480 del_timer(&host->timer); in sdhci_del_timer()
483 static inline bool sdhci_has_requests(struct sdhci_host *host) in sdhci_has_requests() argument
485 return host->cmd || host->data_cmd; in sdhci_has_requests()
494 static void sdhci_read_block_pio(struct sdhci_host *host) in sdhci_read_block_pio() argument
503 blksize = host->data->blksz; in sdhci_read_block_pio()
509 BUG_ON(!sg_miter_next(&host->sg_miter)); in sdhci_read_block_pio()
511 len = min(host->sg_miter.length, blksize); in sdhci_read_block_pio()
514 host->sg_miter.consumed = len; in sdhci_read_block_pio()
516 buf = host->sg_miter.addr; in sdhci_read_block_pio()
520 scratch = sdhci_readl(host, SDHCI_BUFFER); in sdhci_read_block_pio()
533 sg_miter_stop(&host->sg_miter); in sdhci_read_block_pio()
538 static void sdhci_write_block_pio(struct sdhci_host *host) in sdhci_write_block_pio() argument
547 blksize = host->data->blksz; in sdhci_write_block_pio()
554 BUG_ON(!sg_miter_next(&host->sg_miter)); in sdhci_write_block_pio()
556 len = min(host->sg_miter.length, blksize); in sdhci_write_block_pio()
559 host->sg_miter.consumed = len; in sdhci_write_block_pio()
561 buf = host->sg_miter.addr; in sdhci_write_block_pio()
571 sdhci_writel(host, scratch, SDHCI_BUFFER); in sdhci_write_block_pio()
578 sg_miter_stop(&host->sg_miter); in sdhci_write_block_pio()
583 static void sdhci_transfer_pio(struct sdhci_host *host) in sdhci_transfer_pio() argument
587 if (host->blocks == 0) in sdhci_transfer_pio()
590 if (host->data->flags & MMC_DATA_READ) in sdhci_transfer_pio()
600 if ((host->quirks & SDHCI_QUIRK_BROKEN_SMALL_PIO) && in sdhci_transfer_pio()
601 (host->data->blocks == 1)) in sdhci_transfer_pio()
604 while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) { in sdhci_transfer_pio()
605 if (host->quirks & SDHCI_QUIRK_PIO_NEEDS_DELAY) in sdhci_transfer_pio()
608 if (host->data->flags & MMC_DATA_READ) in sdhci_transfer_pio()
609 sdhci_read_block_pio(host); in sdhci_transfer_pio()
611 sdhci_write_block_pio(host); in sdhci_transfer_pio()
613 host->blocks--; in sdhci_transfer_pio()
614 if (host->blocks == 0) in sdhci_transfer_pio()
621 static int sdhci_pre_dma_transfer(struct sdhci_host *host, in sdhci_pre_dma_transfer() argument
634 if (host->bounce_buffer) { in sdhci_pre_dma_transfer()
637 if (length > host->bounce_buffer_size) { in sdhci_pre_dma_transfer()
639 mmc_hostname(host->mmc), length, in sdhci_pre_dma_transfer()
640 host->bounce_buffer_size); in sdhci_pre_dma_transfer()
645 if (host->ops->copy_to_bounce_buffer) { in sdhci_pre_dma_transfer()
646 host->ops->copy_to_bounce_buffer(host, in sdhci_pre_dma_transfer()
650 host->bounce_buffer, length); in sdhci_pre_dma_transfer()
654 dma_sync_single_for_device(host->mmc->parent, in sdhci_pre_dma_transfer()
655 host->bounce_addr, in sdhci_pre_dma_transfer()
656 host->bounce_buffer_size, in sdhci_pre_dma_transfer()
662 sg_count = dma_map_sg(mmc_dev(host->mmc), in sdhci_pre_dma_transfer()
688 void sdhci_adma_write_desc(struct sdhci_host *host, void **desc, in sdhci_adma_write_desc() argument
698 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_adma_write_desc()
701 *desc += host->desc_sz; in sdhci_adma_write_desc()
705 static inline void __sdhci_adma_write_desc(struct sdhci_host *host, in __sdhci_adma_write_desc() argument
709 if (host->ops->adma_write_desc) in __sdhci_adma_write_desc()
710 host->ops->adma_write_desc(host, desc, addr, len, cmd); in __sdhci_adma_write_desc()
712 sdhci_adma_write_desc(host, desc, addr, len, cmd); in __sdhci_adma_write_desc()
723 static void sdhci_adma_table_pre(struct sdhci_host *host, in sdhci_adma_table_pre() argument
738 host->sg_count = sg_count; in sdhci_adma_table_pre()
740 desc = host->adma_table; in sdhci_adma_table_pre()
741 align = host->align_buffer; in sdhci_adma_table_pre()
743 align_addr = host->align_addr; in sdhci_adma_table_pre()
745 for_each_sg(data->sg, sg, host->sg_count, i) { in sdhci_adma_table_pre()
765 __sdhci_adma_write_desc(host, &desc, align_addr, in sdhci_adma_table_pre()
781 __sdhci_adma_write_desc(host, &desc, addr, len, in sdhci_adma_table_pre()
788 WARN_ON((desc - host->adma_table) >= host->adma_table_sz); in sdhci_adma_table_pre()
791 if (host->quirks & SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC) { in sdhci_adma_table_pre()
793 if (desc != host->adma_table) { in sdhci_adma_table_pre()
794 desc -= host->desc_sz; in sdhci_adma_table_pre()
799 __sdhci_adma_write_desc(host, &desc, 0, 0, ADMA2_NOP_END_VALID); in sdhci_adma_table_pre()
803 static void sdhci_adma_table_post(struct sdhci_host *host, in sdhci_adma_table_post() argument
816 for_each_sg(data->sg, sg, host->sg_count, i) in sdhci_adma_table_post()
823 dma_sync_sg_for_cpu(mmc_dev(host->mmc), data->sg, in sdhci_adma_table_post()
826 align = host->align_buffer; in sdhci_adma_table_post()
828 for_each_sg(data->sg, sg, host->sg_count, i) { in sdhci_adma_table_post()
844 static void sdhci_set_adma_addr(struct sdhci_host *host, dma_addr_t addr) in sdhci_set_adma_addr() argument
846 sdhci_writel(host, lower_32_bits(addr), SDHCI_ADMA_ADDRESS); in sdhci_set_adma_addr()
847 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_set_adma_addr()
848 sdhci_writel(host, upper_32_bits(addr), SDHCI_ADMA_ADDRESS_HI); in sdhci_set_adma_addr()
851 static dma_addr_t sdhci_sdma_address(struct sdhci_host *host) in sdhci_sdma_address() argument
853 if (host->bounce_buffer) in sdhci_sdma_address()
854 return host->bounce_addr; in sdhci_sdma_address()
856 return sg_dma_address(host->data->sg); in sdhci_sdma_address()
859 static void sdhci_set_sdma_addr(struct sdhci_host *host, dma_addr_t addr) in sdhci_set_sdma_addr() argument
861 if (host->v4_mode) in sdhci_set_sdma_addr()
862 sdhci_set_adma_addr(host, addr); in sdhci_set_sdma_addr()
864 sdhci_writel(host, addr, SDHCI_DMA_ADDRESS); in sdhci_set_sdma_addr()
867 static unsigned int sdhci_target_timeout(struct sdhci_host *host, in sdhci_target_timeout() argument
878 if (host->clock && data->timeout_clks) { in sdhci_target_timeout()
883 * host->clock is in Hz. target_timeout is in us. in sdhci_target_timeout()
887 if (do_div(val, host->clock)) in sdhci_target_timeout()
896 static void sdhci_calc_sw_timeout(struct sdhci_host *host, in sdhci_calc_sw_timeout() argument
900 struct mmc_host *mmc = host->mmc; in sdhci_calc_sw_timeout()
908 target_timeout = sdhci_target_timeout(host, cmd, data); in sdhci_calc_sw_timeout()
913 freq = host->mmc->actual_clock ? : host->clock; in sdhci_calc_sw_timeout()
919 host->data_timeout = data->blocks * target_timeout + in sdhci_calc_sw_timeout()
922 host->data_timeout = target_timeout; in sdhci_calc_sw_timeout()
925 if (host->data_timeout) in sdhci_calc_sw_timeout()
926 host->data_timeout += MMC_CMD_TRANSFER_TIME; in sdhci_calc_sw_timeout()
929 static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd, in sdhci_calc_timeout() argument
939 * If the host controller provides us with an incorrect timeout in sdhci_calc_timeout()
944 if (host->quirks & SDHCI_QUIRK_BROKEN_TIMEOUT_VAL) in sdhci_calc_timeout()
957 target_timeout = sdhci_target_timeout(host, cmd, data); in sdhci_calc_timeout()
965 * (2) host->timeout_clk < 2^16 in sdhci_calc_timeout()
970 current_timeout = (1 << 13) * 1000 / host->timeout_clk; in sdhci_calc_timeout()
979 if (!(host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT)) in sdhci_calc_timeout()
990 static void sdhci_set_transfer_irqs(struct sdhci_host *host) in sdhci_set_transfer_irqs() argument
995 if (host->flags & SDHCI_REQ_USE_DMA) in sdhci_set_transfer_irqs()
996 host->ier = (host->ier & ~pio_irqs) | dma_irqs; in sdhci_set_transfer_irqs()
998 host->ier = (host->ier & ~dma_irqs) | pio_irqs; in sdhci_set_transfer_irqs()
1000 if (host->flags & (SDHCI_AUTO_CMD23 | SDHCI_AUTO_CMD12)) in sdhci_set_transfer_irqs()
1001 host->ier |= SDHCI_INT_AUTO_CMD_ERR; in sdhci_set_transfer_irqs()
1003 host->ier &= ~SDHCI_INT_AUTO_CMD_ERR; in sdhci_set_transfer_irqs()
1005 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_transfer_irqs()
1006 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_transfer_irqs()
1009 void sdhci_set_data_timeout_irq(struct sdhci_host *host, bool enable) in sdhci_set_data_timeout_irq() argument
1012 host->ier |= SDHCI_INT_DATA_TIMEOUT; in sdhci_set_data_timeout_irq()
1014 host->ier &= ~SDHCI_INT_DATA_TIMEOUT; in sdhci_set_data_timeout_irq()
1015 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_set_data_timeout_irq()
1016 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_set_data_timeout_irq()
1020 void __sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) in __sdhci_set_timeout() argument
1023 u8 count = sdhci_calc_timeout(host, cmd, &too_big); in __sdhci_set_timeout()
1026 host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT) { in __sdhci_set_timeout()
1027 sdhci_calc_sw_timeout(host, cmd); in __sdhci_set_timeout()
1028 sdhci_set_data_timeout_irq(host, false); in __sdhci_set_timeout()
1029 } else if (!(host->ier & SDHCI_INT_DATA_TIMEOUT)) { in __sdhci_set_timeout()
1030 sdhci_set_data_timeout_irq(host, true); in __sdhci_set_timeout()
1033 sdhci_writeb(host, count, SDHCI_TIMEOUT_CONTROL); in __sdhci_set_timeout()
1037 static void sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_set_timeout() argument
1039 if (host->ops->set_timeout) in sdhci_set_timeout()
1040 host->ops->set_timeout(host, cmd); in sdhci_set_timeout()
1042 __sdhci_set_timeout(host, cmd); in sdhci_set_timeout()
1045 static void sdhci_initialize_data(struct sdhci_host *host, in sdhci_initialize_data() argument
1048 WARN_ON(host->data); in sdhci_initialize_data()
1052 BUG_ON(data->blksz > host->mmc->max_blk_size); in sdhci_initialize_data()
1055 host->data = data; in sdhci_initialize_data()
1056 host->data_early = 0; in sdhci_initialize_data()
1057 host->data->bytes_xfered = 0; in sdhci_initialize_data()
1060 static inline void sdhci_set_block_info(struct sdhci_host *host, in sdhci_set_block_info() argument
1064 sdhci_writew(host, in sdhci_set_block_info()
1065 SDHCI_MAKE_BLKSZ(host->sdma_boundary, data->blksz), in sdhci_set_block_info()
1071 if (host->version >= SDHCI_SPEC_410 && host->v4_mode && in sdhci_set_block_info()
1072 (host->quirks2 & SDHCI_QUIRK2_USE_32BIT_BLK_CNT)) { in sdhci_set_block_info()
1073 if (sdhci_readw(host, SDHCI_BLOCK_COUNT)) in sdhci_set_block_info()
1074 sdhci_writew(host, 0, SDHCI_BLOCK_COUNT); in sdhci_set_block_info()
1075 sdhci_writew(host, data->blocks, SDHCI_32BIT_BLK_CNT); in sdhci_set_block_info()
1077 sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT); in sdhci_set_block_info()
1081 static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_prepare_data() argument
1085 sdhci_initialize_data(host, data); in sdhci_prepare_data()
1087 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_prepare_data()
1092 host->flags |= SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1103 if (host->flags & SDHCI_USE_ADMA) { in sdhci_prepare_data()
1104 if (host->quirks & SDHCI_QUIRK_32BIT_ADMA_SIZE) { in sdhci_prepare_data()
1114 if (host->quirks & SDHCI_QUIRK_32BIT_DMA_SIZE) in sdhci_prepare_data()
1116 if (host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) in sdhci_prepare_data()
1125 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1130 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1137 if (host->flags & SDHCI_REQ_USE_DMA) { in sdhci_prepare_data()
1138 int sg_cnt = sdhci_pre_dma_transfer(host, data, COOKIE_MAPPED); in sdhci_prepare_data()
1146 host->flags &= ~SDHCI_REQ_USE_DMA; in sdhci_prepare_data()
1147 } else if (host->flags & SDHCI_USE_ADMA) { in sdhci_prepare_data()
1148 sdhci_adma_table_pre(host, data, sg_cnt); in sdhci_prepare_data()
1149 sdhci_set_adma_addr(host, host->adma_addr); in sdhci_prepare_data()
1152 sdhci_set_sdma_addr(host, sdhci_sdma_address(host)); in sdhci_prepare_data()
1156 sdhci_config_dma(host); in sdhci_prepare_data()
1158 if (!(host->flags & SDHCI_REQ_USE_DMA)) { in sdhci_prepare_data()
1162 if (host->data->flags & MMC_DATA_READ) in sdhci_prepare_data()
1166 sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); in sdhci_prepare_data()
1167 host->blocks = data->blocks; in sdhci_prepare_data()
1170 sdhci_set_transfer_irqs(host); in sdhci_prepare_data()
1172 sdhci_set_block_info(host, data); in sdhci_prepare_data()
1177 static int sdhci_external_dma_init(struct sdhci_host *host) in sdhci_external_dma_init() argument
1180 struct mmc_host *mmc = host->mmc; in sdhci_external_dma_init()
1182 host->tx_chan = dma_request_chan(mmc->parent, "tx"); in sdhci_external_dma_init()
1183 if (IS_ERR(host->tx_chan)) { in sdhci_external_dma_init()
1184 ret = PTR_ERR(host->tx_chan); in sdhci_external_dma_init()
1187 host->tx_chan = NULL; in sdhci_external_dma_init()
1191 host->rx_chan = dma_request_chan(mmc->parent, "rx"); in sdhci_external_dma_init()
1192 if (IS_ERR(host->rx_chan)) { in sdhci_external_dma_init()
1193 if (host->tx_chan) { in sdhci_external_dma_init()
1194 dma_release_channel(host->tx_chan); in sdhci_external_dma_init()
1195 host->tx_chan = NULL; in sdhci_external_dma_init()
1198 ret = PTR_ERR(host->rx_chan); in sdhci_external_dma_init()
1201 host->rx_chan = NULL; in sdhci_external_dma_init()
1207 static struct dma_chan *sdhci_external_dma_channel(struct sdhci_host *host, in sdhci_external_dma_channel() argument
1210 return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan; in sdhci_external_dma_channel()
1213 static int sdhci_external_dma_setup(struct sdhci_host *host, in sdhci_external_dma_setup() argument
1225 if (!host->mapbase) in sdhci_external_dma_setup()
1229 cfg.src_addr = host->mapbase + SDHCI_BUFFER; in sdhci_external_dma_setup()
1230 cfg.dst_addr = host->mapbase + SDHCI_BUFFER; in sdhci_external_dma_setup()
1242 chan = sdhci_external_dma_channel(host, data); in sdhci_external_dma_setup()
1248 sg_cnt = sdhci_pre_dma_transfer(host, data, COOKIE_MAPPED); in sdhci_external_dma_setup()
1268 static void sdhci_external_dma_release(struct sdhci_host *host) in sdhci_external_dma_release() argument
1270 if (host->tx_chan) { in sdhci_external_dma_release()
1271 dma_release_channel(host->tx_chan); in sdhci_external_dma_release()
1272 host->tx_chan = NULL; in sdhci_external_dma_release()
1275 if (host->rx_chan) { in sdhci_external_dma_release()
1276 dma_release_channel(host->rx_chan); in sdhci_external_dma_release()
1277 host->rx_chan = NULL; in sdhci_external_dma_release()
1280 sdhci_switch_external_dma(host, false); in sdhci_external_dma_release()
1283 static void __sdhci_external_dma_prepare_data(struct sdhci_host *host, in __sdhci_external_dma_prepare_data() argument
1288 sdhci_initialize_data(host, data); in __sdhci_external_dma_prepare_data()
1290 host->flags |= SDHCI_REQ_USE_DMA; in __sdhci_external_dma_prepare_data()
1291 sdhci_set_transfer_irqs(host); in __sdhci_external_dma_prepare_data()
1293 sdhci_set_block_info(host, data); in __sdhci_external_dma_prepare_data()
1296 static void sdhci_external_dma_prepare_data(struct sdhci_host *host, in sdhci_external_dma_prepare_data() argument
1299 if (!sdhci_external_dma_setup(host, cmd)) { in sdhci_external_dma_prepare_data()
1300 __sdhci_external_dma_prepare_data(host, cmd); in sdhci_external_dma_prepare_data()
1302 sdhci_external_dma_release(host); in sdhci_external_dma_prepare_data()
1304 mmc_hostname(host->mmc)); in sdhci_external_dma_prepare_data()
1305 sdhci_prepare_data(host, cmd); in sdhci_external_dma_prepare_data()
1309 static void sdhci_external_dma_pre_transfer(struct sdhci_host *host, in sdhci_external_dma_pre_transfer() argument
1317 chan = sdhci_external_dma_channel(host, cmd->data); in sdhci_external_dma_pre_transfer()
1324 static inline int sdhci_external_dma_init(struct sdhci_host *host) in sdhci_external_dma_init() argument
1329 static inline void sdhci_external_dma_release(struct sdhci_host *host) in sdhci_external_dma_release() argument
1333 static inline void sdhci_external_dma_prepare_data(struct sdhci_host *host, in sdhci_external_dma_prepare_data() argument
1340 static inline void sdhci_external_dma_pre_transfer(struct sdhci_host *host, in sdhci_external_dma_pre_transfer() argument
1345 static inline struct dma_chan *sdhci_external_dma_channel(struct sdhci_host *host, in sdhci_external_dma_channel() argument
1353 void sdhci_switch_external_dma(struct sdhci_host *host, bool en) in sdhci_switch_external_dma() argument
1355 host->use_external_dma = en; in sdhci_switch_external_dma()
1359 static inline bool sdhci_auto_cmd12(struct sdhci_host *host, in sdhci_auto_cmd12() argument
1362 return !mrq->sbc && (host->flags & SDHCI_AUTO_CMD12) && in sdhci_auto_cmd12()
1366 static inline bool sdhci_auto_cmd23(struct sdhci_host *host, in sdhci_auto_cmd23() argument
1369 return mrq->sbc && (host->flags & SDHCI_AUTO_CMD23); in sdhci_auto_cmd23()
1372 static inline bool sdhci_manual_cmd23(struct sdhci_host *host, in sdhci_manual_cmd23() argument
1375 return mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23); in sdhci_manual_cmd23()
1378 static inline void sdhci_auto_cmd_select(struct sdhci_host *host, in sdhci_auto_cmd_select() argument
1382 bool use_cmd12 = sdhci_auto_cmd12(host, cmd->mrq) && in sdhci_auto_cmd_select()
1384 bool use_cmd23 = sdhci_auto_cmd23(host, cmd->mrq); in sdhci_auto_cmd_select()
1393 if (host->version >= SDHCI_SPEC_410 && host->v4_mode && in sdhci_auto_cmd_select()
1397 ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_auto_cmd_select()
1402 sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2); in sdhci_auto_cmd_select()
1417 static void sdhci_set_transfer_mode(struct sdhci_host *host, in sdhci_set_transfer_mode() argument
1424 if (host->quirks2 & in sdhci_set_transfer_mode()
1428 sdhci_writew(host, 0x0, SDHCI_TRANSFER_MODE); in sdhci_set_transfer_mode()
1431 mode = sdhci_readw(host, SDHCI_TRANSFER_MODE); in sdhci_set_transfer_mode()
1432 sdhci_writew(host, mode & ~(SDHCI_TRNS_AUTO_CMD12 | in sdhci_set_transfer_mode()
1438 WARN_ON(!host->data); in sdhci_set_transfer_mode()
1440 if (!(host->quirks2 & SDHCI_QUIRK2_SUPPORT_SINGLE)) in sdhci_set_transfer_mode()
1445 sdhci_auto_cmd_select(host, cmd, &mode); in sdhci_set_transfer_mode()
1446 if (sdhci_auto_cmd23(host, cmd->mrq)) in sdhci_set_transfer_mode()
1447 sdhci_writel(host, cmd->mrq->sbc->arg, SDHCI_ARGUMENT2); in sdhci_set_transfer_mode()
1452 if (host->flags & SDHCI_REQ_USE_DMA) in sdhci_set_transfer_mode()
1455 sdhci_writew(host, mode, SDHCI_TRANSFER_MODE); in sdhci_set_transfer_mode()
1458 static bool sdhci_needs_reset(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_needs_reset() argument
1460 return (!(host->flags & SDHCI_DEVICE_DEAD) && in sdhci_needs_reset()
1464 (host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST))); in sdhci_needs_reset()
1467 static void sdhci_set_mrq_done(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_set_mrq_done() argument
1472 if (host->mrqs_done[i] == mrq) { in sdhci_set_mrq_done()
1479 if (!host->mrqs_done[i]) { in sdhci_set_mrq_done()
1480 host->mrqs_done[i] = mrq; in sdhci_set_mrq_done()
1488 static void __sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq) in __sdhci_finish_mrq() argument
1490 if (host->cmd && host->cmd->mrq == mrq) in __sdhci_finish_mrq()
1491 host->cmd = NULL; in __sdhci_finish_mrq()
1493 if (host->data_cmd && host->data_cmd->mrq == mrq) in __sdhci_finish_mrq()
1494 host->data_cmd = NULL; in __sdhci_finish_mrq()
1496 if (host->deferred_cmd && host->deferred_cmd->mrq == mrq) in __sdhci_finish_mrq()
1497 host->deferred_cmd = NULL; in __sdhci_finish_mrq()
1499 if (host->data && host->data->mrq == mrq) in __sdhci_finish_mrq()
1500 host->data = NULL; in __sdhci_finish_mrq()
1502 if (sdhci_needs_reset(host, mrq)) in __sdhci_finish_mrq()
1503 host->pending_reset = true; in __sdhci_finish_mrq()
1505 sdhci_set_mrq_done(host, mrq); in __sdhci_finish_mrq()
1507 sdhci_del_timer(host, mrq); in __sdhci_finish_mrq()
1509 if (!sdhci_has_requests(host)) in __sdhci_finish_mrq()
1510 sdhci_led_deactivate(host); in __sdhci_finish_mrq()
1513 static void sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq) in sdhci_finish_mrq() argument
1515 __sdhci_finish_mrq(host, mrq); in sdhci_finish_mrq()
1517 queue_work(host->complete_wq, &host->complete_work); in sdhci_finish_mrq()
1520 static void __sdhci_finish_data(struct sdhci_host *host, bool sw_data_timeout) in __sdhci_finish_data() argument
1522 struct mmc_command *data_cmd = host->data_cmd; in __sdhci_finish_data()
1523 struct mmc_data *data = host->data; in __sdhci_finish_data()
1525 host->data = NULL; in __sdhci_finish_data()
1526 host->data_cmd = NULL; in __sdhci_finish_data()
1533 if (!host->cmd || host->cmd == data_cmd) in __sdhci_finish_data()
1534 sdhci_do_reset(host, SDHCI_RESET_CMD); in __sdhci_finish_data()
1535 sdhci_do_reset(host, SDHCI_RESET_DATA); in __sdhci_finish_data()
1538 if ((host->flags & (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA)) == in __sdhci_finish_data()
1540 sdhci_adma_table_post(host, data); in __sdhci_finish_data()
1560 ((!data->mrq->sbc && !sdhci_auto_cmd12(host, data->mrq)) || in __sdhci_finish_data()
1568 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1571 host->cmd = NULL; in __sdhci_finish_data()
1572 if (!sdhci_send_command(host, data->stop)) { in __sdhci_finish_data()
1579 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1581 WARN_ON(host->deferred_cmd); in __sdhci_finish_data()
1582 host->deferred_cmd = data->stop; in __sdhci_finish_data()
1587 __sdhci_finish_mrq(host, data->mrq); in __sdhci_finish_data()
1591 static void sdhci_finish_data(struct sdhci_host *host) in sdhci_finish_data() argument
1593 __sdhci_finish_data(host, false); in sdhci_finish_data()
1596 static bool sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_send_command() argument
1602 WARN_ON(host->cmd); in sdhci_send_command()
1607 if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) && in sdhci_send_command()
1620 if (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) in sdhci_send_command()
1623 host->cmd = cmd; in sdhci_send_command()
1624 host->data_timeout = 0; in sdhci_send_command()
1626 WARN_ON(host->data_cmd); in sdhci_send_command()
1627 host->data_cmd = cmd; in sdhci_send_command()
1628 sdhci_set_timeout(host, cmd); in sdhci_send_command()
1632 if (host->use_external_dma) in sdhci_send_command()
1633 sdhci_external_dma_prepare_data(host, cmd); in sdhci_send_command()
1635 sdhci_prepare_data(host, cmd); in sdhci_send_command()
1638 sdhci_writel(host, cmd->arg, SDHCI_ARGUMENT); in sdhci_send_command()
1640 sdhci_set_transfer_mode(host, cmd); in sdhci_send_command()
1672 if (host->data_timeout) in sdhci_send_command()
1673 timeout += nsecs_to_jiffies(host->data_timeout); in sdhci_send_command()
1678 sdhci_mod_timer(host, cmd->mrq, timeout); in sdhci_send_command()
1680 if (host->use_external_dma) in sdhci_send_command()
1681 sdhci_external_dma_pre_transfer(host, cmd); in sdhci_send_command()
1683 sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND); in sdhci_send_command()
1688 static bool sdhci_present_error(struct sdhci_host *host, in sdhci_present_error() argument
1691 if (!present || host->flags & SDHCI_DEVICE_DEAD) { in sdhci_present_error()
1699 static bool sdhci_send_command_retry(struct sdhci_host *host, in sdhci_send_command_retry() argument
1702 __releases(host->lock) in sdhci_send_command_retry()
1703 __acquires(host->lock) in sdhci_send_command_retry()
1705 struct mmc_command *deferred_cmd = host->deferred_cmd; in sdhci_send_command_retry()
1709 while (!sdhci_send_command(host, cmd)) { in sdhci_send_command_retry()
1712 mmc_hostname(host->mmc)); in sdhci_send_command_retry()
1713 sdhci_dumpregs(host); in sdhci_send_command_retry()
1718 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_command_retry()
1722 present = host->mmc->ops->get_cd(host->mmc); in sdhci_send_command_retry()
1724 spin_lock_irqsave(&host->lock, flags); in sdhci_send_command_retry()
1727 if (cmd == deferred_cmd && cmd != host->deferred_cmd) in sdhci_send_command_retry()
1730 if (sdhci_present_error(host, cmd, present)) in sdhci_send_command_retry()
1734 if (cmd == host->deferred_cmd) in sdhci_send_command_retry()
1735 host->deferred_cmd = NULL; in sdhci_send_command_retry()
1740 static void sdhci_read_rsp_136(struct sdhci_host *host, struct mmc_command *cmd) in sdhci_read_rsp_136() argument
1746 cmd->resp[i] = sdhci_readl(host, reg); in sdhci_read_rsp_136()
1749 if (host->quirks2 & SDHCI_QUIRK2_RSP_136_HAS_CRC) in sdhci_read_rsp_136()
1760 static void sdhci_finish_command(struct sdhci_host *host) in sdhci_finish_command() argument
1762 struct mmc_command *cmd = host->cmd; in sdhci_finish_command()
1764 host->cmd = NULL; in sdhci_finish_command()
1768 sdhci_read_rsp_136(host, cmd); in sdhci_finish_command()
1770 cmd->resp[0] = sdhci_readl(host, SDHCI_RESPONSE); in sdhci_finish_command()
1775 mmc_command_done(host->mmc, cmd->mrq); in sdhci_finish_command()
1778 * The host can send and interrupt when the busy state has in sdhci_finish_command()
1790 } else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ) && in sdhci_finish_command()
1791 cmd == host->data_cmd) { in sdhci_finish_command()
1799 if (!sdhci_send_command(host, cmd->mrq->cmd)) { in sdhci_finish_command()
1800 WARN_ON(host->deferred_cmd); in sdhci_finish_command()
1801 host->deferred_cmd = cmd->mrq->cmd; in sdhci_finish_command()
1806 if (host->data && host->data_early) in sdhci_finish_command()
1807 sdhci_finish_data(host); in sdhci_finish_command()
1810 __sdhci_finish_mrq(host, cmd->mrq); in sdhci_finish_command()
1814 static u16 sdhci_get_preset_value(struct sdhci_host *host) in sdhci_get_preset_value() argument
1818 switch (host->timing) { in sdhci_get_preset_value()
1821 preset = sdhci_readw(host, SDHCI_PRESET_FOR_HIGH_SPEED); in sdhci_get_preset_value()
1824 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR12); in sdhci_get_preset_value()
1827 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR25); in sdhci_get_preset_value()
1830 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR50); in sdhci_get_preset_value()
1834 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR104); in sdhci_get_preset_value()
1838 preset = sdhci_readw(host, SDHCI_PRESET_FOR_DDR50); in sdhci_get_preset_value()
1841 preset = sdhci_readw(host, SDHCI_PRESET_FOR_HS400); in sdhci_get_preset_value()
1845 mmc_hostname(host->mmc)); in sdhci_get_preset_value()
1846 preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR12); in sdhci_get_preset_value()
1852 u16 sdhci_calc_clk(struct sdhci_host *host, unsigned int clock, in sdhci_calc_clk() argument
1860 if (host->version >= SDHCI_SPEC_300) { in sdhci_calc_clk()
1861 if (host->preset_enabled) { in sdhci_calc_clk()
1864 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_calc_clk()
1865 pre_val = sdhci_get_preset_value(host); in sdhci_calc_clk()
1867 if (host->clk_mul && in sdhci_calc_clk()
1871 clk_mul = host->clk_mul; in sdhci_calc_clk()
1879 * Check if the Host Controller supports Programmable Clock in sdhci_calc_clk()
1882 if (host->clk_mul) { in sdhci_calc_clk()
1884 if ((host->max_clk * host->clk_mul / div) in sdhci_calc_clk()
1888 if ((host->max_clk * host->clk_mul / div) <= clock) { in sdhci_calc_clk()
1895 clk_mul = host->clk_mul; in sdhci_calc_clk()
1906 if (!host->clk_mul || switch_base_clk) { in sdhci_calc_clk()
1908 if (host->max_clk <= clock) in sdhci_calc_clk()
1913 if ((host->max_clk / div) <= clock) in sdhci_calc_clk()
1919 if ((host->quirks2 & SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN) in sdhci_calc_clk()
1920 && !div && host->max_clk <= 25000000) in sdhci_calc_clk()
1926 if ((host->max_clk / div) <= clock) in sdhci_calc_clk()
1935 *actual_clock = (host->max_clk * clk_mul) / real_div; in sdhci_calc_clk()
1944 void sdhci_enable_clk(struct sdhci_host *host, u16 clk) in sdhci_enable_clk() argument
1949 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1956 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1961 mmc_hostname(host->mmc)); in sdhci_enable_clk()
1962 sdhci_dumpregs(host); in sdhci_enable_clk()
1968 if (host->version >= SDHCI_SPEC_410 && host->v4_mode) { in sdhci_enable_clk()
1971 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1978 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1983 mmc_hostname(host->mmc)); in sdhci_enable_clk()
1984 sdhci_dumpregs(host); in sdhci_enable_clk()
1992 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_enable_clk()
1996 void sdhci_set_clock(struct sdhci_host *host, unsigned int clock) in sdhci_set_clock() argument
2000 host->mmc->actual_clock = 0; in sdhci_set_clock()
2002 sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL); in sdhci_set_clock()
2007 clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock); in sdhci_set_clock()
2008 sdhci_enable_clk(host, clk); in sdhci_set_clock()
2012 static void sdhci_set_power_reg(struct sdhci_host *host, unsigned char mode, in sdhci_set_power_reg() argument
2015 struct mmc_host *mmc = host->mmc; in sdhci_set_power_reg()
2020 sdhci_writeb(host, SDHCI_POWER_ON, SDHCI_POWER_CONTROL); in sdhci_set_power_reg()
2022 sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); in sdhci_set_power_reg()
2025 void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode, in sdhci_set_power_noreg() argument
2058 mmc_hostname(host->mmc), vdd); in sdhci_set_power_noreg()
2063 if (host->pwr == pwr) in sdhci_set_power_noreg()
2066 host->pwr = pwr; in sdhci_set_power_noreg()
2069 sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2070 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_set_power_noreg()
2071 sdhci_runtime_pm_bus_off(host); in sdhci_set_power_noreg()
2077 if (!(host->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE)) in sdhci_set_power_noreg()
2078 sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2085 if (host->quirks & SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER) in sdhci_set_power_noreg()
2086 sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2090 sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL); in sdhci_set_power_noreg()
2092 if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) in sdhci_set_power_noreg()
2093 sdhci_runtime_pm_bus_on(host); in sdhci_set_power_noreg()
2099 if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER) in sdhci_set_power_noreg()
2105 void sdhci_set_power(struct sdhci_host *host, unsigned char mode, in sdhci_set_power() argument
2108 if (IS_ERR(host->mmc->supply.vmmc)) in sdhci_set_power()
2109 sdhci_set_power_noreg(host, mode, vdd); in sdhci_set_power()
2111 sdhci_set_power_reg(host, mode, vdd); in sdhci_set_power()
2121 void sdhci_set_power_and_bus_voltage(struct sdhci_host *host, in sdhci_set_power_and_bus_voltage() argument
2125 if (!IS_ERR(host->mmc->supply.vmmc)) { in sdhci_set_power_and_bus_voltage()
2126 struct mmc_host *mmc = host->mmc; in sdhci_set_power_and_bus_voltage()
2130 sdhci_set_power_noreg(host, mode, vdd); in sdhci_set_power_and_bus_voltage()
2142 struct sdhci_host *host = mmc_priv(mmc); in sdhci_request() local
2150 spin_lock_irqsave(&host->lock, flags); in sdhci_request()
2152 sdhci_led_activate(host); in sdhci_request()
2154 if (sdhci_present_error(host, mrq->cmd, present)) in sdhci_request()
2157 cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; in sdhci_request()
2159 if (!sdhci_send_command_retry(host, cmd, flags)) in sdhci_request()
2162 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request()
2167 sdhci_finish_mrq(host, mrq); in sdhci_request()
2168 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request()
2174 struct sdhci_host *host = mmc_priv(mmc); in sdhci_request_atomic() local
2179 spin_lock_irqsave(&host->lock, flags); in sdhci_request_atomic()
2181 if (sdhci_present_error(host, mrq->cmd, true)) { in sdhci_request_atomic()
2182 sdhci_finish_mrq(host, mrq); in sdhci_request_atomic()
2186 cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; in sdhci_request_atomic()
2195 if (!sdhci_send_command(host, cmd)) in sdhci_request_atomic()
2198 sdhci_led_activate(host); in sdhci_request_atomic()
2201 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_atomic()
2206 void sdhci_set_bus_width(struct sdhci_host *host, int width) in sdhci_set_bus_width() argument
2210 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in sdhci_set_bus_width()
2215 if (host->mmc->caps & MMC_CAP_8_BIT_DATA) in sdhci_set_bus_width()
2222 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_bus_width()
2226 void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing) in sdhci_set_uhs_signaling() argument
2230 ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_set_uhs_signaling()
2231 /* Select Bus Speed Mode for host */ in sdhci_set_uhs_signaling()
2247 sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2); in sdhci_set_uhs_signaling()
2253 struct sdhci_host *host = mmc_priv(mmc); in sdhci_set_ios() local
2259 if (host->flags & SDHCI_DEVICE_DEAD) { in sdhci_set_ios()
2271 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in sdhci_set_ios()
2272 sdhci_reinit(host); in sdhci_set_ios()
2275 if (host->version >= SDHCI_SPEC_300 && in sdhci_set_ios()
2277 !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) in sdhci_set_ios()
2278 sdhci_enable_preset_value(host, false); in sdhci_set_ios()
2280 if (!ios->clock || ios->clock != host->clock) { in sdhci_set_ios()
2281 host->ops->set_clock(host, ios->clock); in sdhci_set_ios()
2282 host->clock = ios->clock; in sdhci_set_ios()
2284 if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK && in sdhci_set_ios()
2285 host->clock) { in sdhci_set_ios()
2286 host->timeout_clk = host->mmc->actual_clock ? in sdhci_set_ios()
2287 host->mmc->actual_clock / 1000 : in sdhci_set_ios()
2288 host->clock / 1000; in sdhci_set_ios()
2289 host->mmc->max_busy_timeout = in sdhci_set_ios()
2290 host->ops->get_max_timeout_count ? in sdhci_set_ios()
2291 host->ops->get_max_timeout_count(host) : in sdhci_set_ios()
2293 host->mmc->max_busy_timeout /= host->timeout_clk; in sdhci_set_ios()
2297 if (host->ops->set_power) in sdhci_set_ios()
2298 host->ops->set_power(host, ios->power_mode, ios->vdd); in sdhci_set_ios()
2300 sdhci_set_power(host, ios->power_mode, ios->vdd); in sdhci_set_ios()
2302 if (host->ops->platform_send_init_74_clocks) in sdhci_set_ios()
2303 host->ops->platform_send_init_74_clocks(host, ios->power_mode); in sdhci_set_ios()
2305 host->ops->set_bus_width(host, ios->bus_width); in sdhci_set_ios()
2307 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2309 if (!(host->quirks & SDHCI_QUIRK_NO_HISPD_BIT)) { in sdhci_set_ios()
2324 if (host->version >= SDHCI_SPEC_300) { in sdhci_set_ios()
2327 if (!host->preset_enabled) { in sdhci_set_ios()
2328 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2333 ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_set_ios()
2349 sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2); in sdhci_set_ios()
2353 * Enable in the Host Control 2 register is set, we in sdhci_set_ios()
2359 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2361 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2363 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2366 host->ops->set_clock(host, host->clock); in sdhci_set_ios()
2370 clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2372 sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); in sdhci_set_ios()
2374 host->ops->set_uhs_signaling(host, ios->timing); in sdhci_set_ios()
2375 host->timing = ios->timing; in sdhci_set_ios()
2377 if (!(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN) && in sdhci_set_ios()
2386 sdhci_enable_preset_value(host, true); in sdhci_set_ios()
2387 preset = sdhci_get_preset_value(host); in sdhci_set_ios()
2393 host->ops->set_clock(host, host->clock); in sdhci_set_ios()
2395 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_set_ios()
2402 if (host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS) in sdhci_set_ios()
2403 sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA); in sdhci_set_ios()
2409 struct sdhci_host *host = mmc_priv(mmc); in sdhci_get_cd() local
2413 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_get_cd()
2417 if (!mmc_card_is_removable(host->mmc)) in sdhci_get_cd()
2420 trace_android_vh_sdhci_get_cd(host, &allow); in sdhci_get_cd()
2432 if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) in sdhci_get_cd()
2435 /* Host native card detect */ in sdhci_get_cd()
2436 return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT); in sdhci_get_cd()
2439 static int sdhci_check_ro(struct sdhci_host *host) in sdhci_check_ro() argument
2444 spin_lock_irqsave(&host->lock, flags); in sdhci_check_ro()
2446 if (host->flags & SDHCI_DEVICE_DEAD) in sdhci_check_ro()
2448 else if (host->ops->get_ro) in sdhci_check_ro()
2449 is_readonly = host->ops->get_ro(host); in sdhci_check_ro()
2450 else if (mmc_can_gpio_ro(host->mmc)) in sdhci_check_ro()
2451 is_readonly = mmc_gpio_get_ro(host->mmc); in sdhci_check_ro()
2453 is_readonly = !(sdhci_readl(host, SDHCI_PRESENT_STATE) in sdhci_check_ro()
2456 spin_unlock_irqrestore(&host->lock, flags); in sdhci_check_ro()
2459 return host->quirks & SDHCI_QUIRK_INVERTED_WRITE_PROTECT ? in sdhci_check_ro()
2467 struct sdhci_host *host = mmc_priv(mmc); in sdhci_get_ro() local
2470 if (!(host->quirks & SDHCI_QUIRK_UNSTABLE_RO_DETECT)) in sdhci_get_ro()
2471 return sdhci_check_ro(host); in sdhci_get_ro()
2475 if (sdhci_check_ro(host)) { in sdhci_get_ro()
2486 struct sdhci_host *host = mmc_priv(mmc); in sdhci_hw_reset() local
2488 if (host->ops && host->ops->hw_reset) in sdhci_hw_reset()
2489 host->ops->hw_reset(host); in sdhci_hw_reset()
2492 static void sdhci_enable_sdio_irq_nolock(struct sdhci_host *host, int enable) in sdhci_enable_sdio_irq_nolock() argument
2494 if (!(host->flags & SDHCI_DEVICE_DEAD)) { in sdhci_enable_sdio_irq_nolock()
2496 host->ier |= SDHCI_INT_CARD_INT; in sdhci_enable_sdio_irq_nolock()
2498 host->ier &= ~SDHCI_INT_CARD_INT; in sdhci_enable_sdio_irq_nolock()
2500 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_enable_sdio_irq_nolock()
2501 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_enable_sdio_irq_nolock()
2507 struct sdhci_host *host = mmc_priv(mmc); in sdhci_enable_sdio_irq() local
2511 pm_runtime_get_noresume(host->mmc->parent); in sdhci_enable_sdio_irq()
2513 spin_lock_irqsave(&host->lock, flags); in sdhci_enable_sdio_irq()
2514 sdhci_enable_sdio_irq_nolock(host, enable); in sdhci_enable_sdio_irq()
2515 spin_unlock_irqrestore(&host->lock, flags); in sdhci_enable_sdio_irq()
2518 pm_runtime_put_noidle(host->mmc->parent); in sdhci_enable_sdio_irq()
2524 struct sdhci_host *host = mmc_priv(mmc); in sdhci_ack_sdio_irq() local
2527 spin_lock_irqsave(&host->lock, flags); in sdhci_ack_sdio_irq()
2528 sdhci_enable_sdio_irq_nolock(host, true); in sdhci_ack_sdio_irq()
2529 spin_unlock_irqrestore(&host->lock, flags); in sdhci_ack_sdio_irq()
2535 struct sdhci_host *host = mmc_priv(mmc); in sdhci_start_signal_voltage_switch() local
2540 * Signal Voltage Switching is only applicable for Host Controllers in sdhci_start_signal_voltage_switch()
2543 if (host->version < SDHCI_SPEC_300) in sdhci_start_signal_voltage_switch()
2546 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2550 if (!(host->flags & SDHCI_SIGNALING_330)) in sdhci_start_signal_voltage_switch()
2552 /* Set 1.8V Signal Enable in the Host Control2 register to 0 */ in sdhci_start_signal_voltage_switch()
2554 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2568 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2577 if (!(host->flags & SDHCI_SIGNALING_180)) in sdhci_start_signal_voltage_switch()
2589 * Enable 1.8V Signal Enable in the Host Control2 in sdhci_start_signal_voltage_switch()
2593 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2596 if (host->ops->voltage_switch) in sdhci_start_signal_voltage_switch()
2597 host->ops->voltage_switch(host); in sdhci_start_signal_voltage_switch()
2600 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_signal_voltage_switch()
2609 if (!(host->flags & SDHCI_SIGNALING_120)) in sdhci_start_signal_voltage_switch()
2629 struct sdhci_host *host = mmc_priv(mmc); in sdhci_card_busy() local
2633 present_state = sdhci_readl(host, SDHCI_PRESENT_STATE); in sdhci_card_busy()
2640 struct sdhci_host *host = mmc_priv(mmc); in sdhci_prepare_hs400_tuning() local
2643 spin_lock_irqsave(&host->lock, flags); in sdhci_prepare_hs400_tuning()
2644 host->flags |= SDHCI_HS400_TUNING; in sdhci_prepare_hs400_tuning()
2645 spin_unlock_irqrestore(&host->lock, flags); in sdhci_prepare_hs400_tuning()
2650 void sdhci_start_tuning(struct sdhci_host *host) in sdhci_start_tuning() argument
2654 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_start_tuning()
2656 if (host->quirks2 & SDHCI_QUIRK2_TUNING_WORK_AROUND) in sdhci_start_tuning()
2658 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_start_tuning()
2661 * As per the Host Controller spec v3.00, tuning command in sdhci_start_tuning()
2670 sdhci_writel(host, SDHCI_INT_DATA_AVAIL, SDHCI_INT_ENABLE); in sdhci_start_tuning()
2671 sdhci_writel(host, SDHCI_INT_DATA_AVAIL, SDHCI_SIGNAL_ENABLE); in sdhci_start_tuning()
2675 void sdhci_end_tuning(struct sdhci_host *host) in sdhci_end_tuning() argument
2677 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_end_tuning()
2678 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_end_tuning()
2682 void sdhci_reset_tuning(struct sdhci_host *host) in sdhci_reset_tuning() argument
2686 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_reset_tuning()
2689 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_reset_tuning()
2693 void sdhci_abort_tuning(struct sdhci_host *host, u32 opcode) in sdhci_abort_tuning() argument
2695 sdhci_reset_tuning(host); in sdhci_abort_tuning()
2697 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_abort_tuning()
2698 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_abort_tuning()
2700 sdhci_end_tuning(host); in sdhci_abort_tuning()
2702 mmc_abort_tuning(host->mmc, opcode); in sdhci_abort_tuning()
2713 void sdhci_send_tuning(struct sdhci_host *host, u32 opcode) in sdhci_send_tuning() argument
2715 struct mmc_host *mmc = host->mmc; in sdhci_send_tuning()
2719 u32 b = host->sdma_boundary; in sdhci_send_tuning()
2721 spin_lock_irqsave(&host->lock, flags); in sdhci_send_tuning()
2730 * block to the Host Controller. So we set the block size in sdhci_send_tuning()
2735 sdhci_writew(host, SDHCI_MAKE_BLKSZ(b, 128), SDHCI_BLOCK_SIZE); in sdhci_send_tuning()
2737 sdhci_writew(host, SDHCI_MAKE_BLKSZ(b, 64), SDHCI_BLOCK_SIZE); in sdhci_send_tuning()
2740 * The tuning block is sent by the card to the host controller. in sdhci_send_tuning()
2745 sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE); in sdhci_send_tuning()
2747 if (!sdhci_send_command_retry(host, &cmd, flags)) { in sdhci_send_tuning()
2748 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_tuning()
2749 host->tuning_done = 0; in sdhci_send_tuning()
2753 host->cmd = NULL; in sdhci_send_tuning()
2755 sdhci_del_timer(host, &mrq); in sdhci_send_tuning()
2757 host->tuning_done = 0; in sdhci_send_tuning()
2759 spin_unlock_irqrestore(&host->lock, flags); in sdhci_send_tuning()
2762 wait_event_timeout(host->buf_ready_int, (host->tuning_done == 1), in sdhci_send_tuning()
2768 static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode) in __sdhci_execute_tuning() argument
2776 for (i = 0; i < host->tuning_loop_count; i++) { in __sdhci_execute_tuning()
2779 sdhci_send_tuning(host, opcode); in __sdhci_execute_tuning()
2781 if (!host->tuning_done) { in __sdhci_execute_tuning()
2783 mmc_hostname(host->mmc)); in __sdhci_execute_tuning()
2784 sdhci_abort_tuning(host, opcode); in __sdhci_execute_tuning()
2789 if (host->tuning_delay > 0) in __sdhci_execute_tuning()
2790 mdelay(host->tuning_delay); in __sdhci_execute_tuning()
2792 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in __sdhci_execute_tuning()
2802 mmc_hostname(host->mmc)); in __sdhci_execute_tuning()
2803 sdhci_reset_tuning(host); in __sdhci_execute_tuning()
2809 struct sdhci_host *host = mmc_priv(mmc); in sdhci_execute_tuning() local
2814 hs400_tuning = host->flags & SDHCI_HS400_TUNING; in sdhci_execute_tuning()
2816 if (host->tuning_mode == SDHCI_TUNING_MODE_1) in sdhci_execute_tuning()
2817 tuning_count = host->tuning_count; in sdhci_execute_tuning()
2820 * The Host Controller needs tuning in case of SDR104 and DDR50 in sdhci_execute_tuning()
2823 * If the Host Controller supports the HS200 mode then the in sdhci_execute_tuning()
2826 switch (host->timing) { in sdhci_execute_tuning()
2846 if (host->flags & SDHCI_SDR50_NEEDS_TUNING) in sdhci_execute_tuning()
2854 if (host->ops->platform_execute_tuning) { in sdhci_execute_tuning()
2855 err = host->ops->platform_execute_tuning(host, opcode); in sdhci_execute_tuning()
2859 host->mmc->retune_period = tuning_count; in sdhci_execute_tuning()
2861 if (host->tuning_delay < 0) in sdhci_execute_tuning()
2862 host->tuning_delay = opcode == MMC_SEND_TUNING_BLOCK; in sdhci_execute_tuning()
2864 sdhci_start_tuning(host); in sdhci_execute_tuning()
2866 host->tuning_err = __sdhci_execute_tuning(host, opcode); in sdhci_execute_tuning()
2868 sdhci_end_tuning(host); in sdhci_execute_tuning()
2870 host->flags &= ~SDHCI_HS400_TUNING; in sdhci_execute_tuning()
2876 static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable) in sdhci_enable_preset_value() argument
2878 /* Host Controller v3.00 defines preset value registers */ in sdhci_enable_preset_value()
2879 if (host->version < SDHCI_SPEC_300) in sdhci_enable_preset_value()
2886 if (host->preset_enabled != enable) { in sdhci_enable_preset_value()
2887 u16 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); in sdhci_enable_preset_value()
2894 sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); in sdhci_enable_preset_value()
2897 host->flags |= SDHCI_PV_ENABLED; in sdhci_enable_preset_value()
2899 host->flags &= ~SDHCI_PV_ENABLED; in sdhci_enable_preset_value()
2901 host->preset_enabled = enable; in sdhci_enable_preset_value()
2908 struct sdhci_host *host = mmc_priv(mmc); in sdhci_post_req() local
2912 dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, in sdhci_post_req()
2920 struct sdhci_host *host = mmc_priv(mmc); in sdhci_pre_req() local
2929 if (host->flags & SDHCI_REQ_USE_DMA && !host->bounce_buffer) in sdhci_pre_req()
2930 sdhci_pre_dma_transfer(host, mrq->data, COOKIE_PRE_MAPPED); in sdhci_pre_req()
2933 static void sdhci_error_out_mrqs(struct sdhci_host *host, int err) in sdhci_error_out_mrqs() argument
2935 if (host->data_cmd) { in sdhci_error_out_mrqs()
2936 host->data_cmd->error = err; in sdhci_error_out_mrqs()
2937 sdhci_finish_mrq(host, host->data_cmd->mrq); in sdhci_error_out_mrqs()
2940 if (host->cmd) { in sdhci_error_out_mrqs()
2941 host->cmd->error = err; in sdhci_error_out_mrqs()
2942 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_error_out_mrqs()
2948 struct sdhci_host *host = mmc_priv(mmc); in sdhci_card_event() local
2953 if (host->ops->card_event) in sdhci_card_event()
2954 host->ops->card_event(host); in sdhci_card_event()
2958 spin_lock_irqsave(&host->lock, flags); in sdhci_card_event()
2961 if (sdhci_has_requests(host) && !present) { in sdhci_card_event()
2963 mmc_hostname(host->mmc)); in sdhci_card_event()
2965 mmc_hostname(host->mmc)); in sdhci_card_event()
2967 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_card_event()
2968 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_card_event()
2970 sdhci_error_out_mrqs(host, -ENOMEDIUM); in sdhci_card_event()
2973 spin_unlock_irqrestore(&host->lock, flags); in sdhci_card_event()
2999 static bool sdhci_request_done(struct sdhci_host *host) in sdhci_request_done() argument
3005 spin_lock_irqsave(&host->lock, flags); in sdhci_request_done()
3008 mrq = host->mrqs_done[i]; in sdhci_request_done()
3014 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3022 if (sdhci_needs_reset(host, mrq)) { in sdhci_request_done()
3026 * also be in mrqs_done, otherwise host->cmd and host->data_cmd in sdhci_request_done()
3029 if (host->cmd || host->data_cmd) { in sdhci_request_done()
3030 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3035 if (host->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) in sdhci_request_done()
3037 host->ops->set_clock(host, host->clock); in sdhci_request_done()
3043 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_request_done()
3044 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_request_done()
3046 host->pending_reset = false; in sdhci_request_done()
3054 if (host->flags & SDHCI_REQ_USE_DMA) { in sdhci_request_done()
3057 if (host->use_external_dma && data && in sdhci_request_done()
3059 struct dma_chan *chan = sdhci_external_dma_channel(host, data); in sdhci_request_done()
3061 host->mrqs_done[i] = NULL; in sdhci_request_done()
3062 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3064 spin_lock_irqsave(&host->lock, flags); in sdhci_request_done()
3065 sdhci_set_mrq_done(host, mrq); in sdhci_request_done()
3069 if (host->bounce_buffer) { in sdhci_request_done()
3077 if (length > host->bounce_buffer_size) { in sdhci_request_done()
3079 mmc_hostname(host->mmc), in sdhci_request_done()
3080 host->bounce_buffer_size, in sdhci_request_done()
3083 length = host->bounce_buffer_size; in sdhci_request_done()
3086 host->mmc->parent, in sdhci_request_done()
3087 host->bounce_addr, in sdhci_request_done()
3088 host->bounce_buffer_size, in sdhci_request_done()
3092 host->bounce_buffer, in sdhci_request_done()
3097 host->mmc->parent, in sdhci_request_done()
3098 host->bounce_addr, in sdhci_request_done()
3099 host->bounce_buffer_size, in sdhci_request_done()
3104 dma_unmap_sg(mmc_dev(host->mmc), data->sg, in sdhci_request_done()
3112 host->mrqs_done[i] = NULL; in sdhci_request_done()
3114 spin_unlock_irqrestore(&host->lock, flags); in sdhci_request_done()
3116 if (host->ops->request_done) in sdhci_request_done()
3117 host->ops->request_done(host, mrq); in sdhci_request_done()
3119 mmc_request_done(host->mmc, mrq); in sdhci_request_done()
3126 struct sdhci_host *host = container_of(work, struct sdhci_host, in sdhci_complete_work() local
3129 while (!sdhci_request_done(host)) in sdhci_complete_work()
3135 struct sdhci_host *host; in sdhci_timeout_timer() local
3138 host = from_timer(host, t, timer); in sdhci_timeout_timer()
3140 spin_lock_irqsave(&host->lock, flags); in sdhci_timeout_timer()
3142 if (host->cmd && !sdhci_data_line_cmd(host->cmd)) { in sdhci_timeout_timer()
3144 mmc_hostname(host->mmc)); in sdhci_timeout_timer()
3145 sdhci_dumpregs(host); in sdhci_timeout_timer()
3147 host->cmd->error = -ETIMEDOUT; in sdhci_timeout_timer()
3148 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_timeout_timer()
3151 spin_unlock_irqrestore(&host->lock, flags); in sdhci_timeout_timer()
3156 struct sdhci_host *host; in sdhci_timeout_data_timer() local
3159 host = from_timer(host, t, data_timer); in sdhci_timeout_data_timer()
3161 spin_lock_irqsave(&host->lock, flags); in sdhci_timeout_data_timer()
3163 if (host->data || host->data_cmd || in sdhci_timeout_data_timer()
3164 (host->cmd && sdhci_data_line_cmd(host->cmd))) { in sdhci_timeout_data_timer()
3166 mmc_hostname(host->mmc)); in sdhci_timeout_data_timer()
3167 sdhci_dumpregs(host); in sdhci_timeout_data_timer()
3169 if (host->data) { in sdhci_timeout_data_timer()
3170 host->data->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3171 __sdhci_finish_data(host, true); in sdhci_timeout_data_timer()
3172 queue_work(host->complete_wq, &host->complete_work); in sdhci_timeout_data_timer()
3173 } else if (host->data_cmd) { in sdhci_timeout_data_timer()
3174 host->data_cmd->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3175 sdhci_finish_mrq(host, host->data_cmd->mrq); in sdhci_timeout_data_timer()
3177 host->cmd->error = -ETIMEDOUT; in sdhci_timeout_data_timer()
3178 sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_timeout_data_timer()
3182 spin_unlock_irqrestore(&host->lock, flags); in sdhci_timeout_data_timer()
3191 static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *intmask_p) in sdhci_cmd_irq() argument
3194 if (intmask & SDHCI_INT_AUTO_CMD_ERR && host->data_cmd) { in sdhci_cmd_irq()
3195 struct mmc_request *mrq = host->data_cmd->mrq; in sdhci_cmd_irq()
3196 u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS); in sdhci_cmd_irq()
3202 if (!mrq->sbc && (host->flags & SDHCI_AUTO_CMD12)) { in sdhci_cmd_irq()
3208 if (!host->cmd) { in sdhci_cmd_irq()
3214 if (host->pending_reset) in sdhci_cmd_irq()
3217 mmc_hostname(host->mmc), (unsigned)intmask); in sdhci_cmd_irq()
3218 sdhci_dumpregs(host); in sdhci_cmd_irq()
3225 host->cmd->error = -ETIMEDOUT; in sdhci_cmd_irq()
3227 host->cmd->error = -EILSEQ; in sdhci_cmd_irq()
3230 if (host->cmd->data && in sdhci_cmd_irq()
3233 host->cmd = NULL; in sdhci_cmd_irq()
3238 __sdhci_finish_mrq(host, host->cmd->mrq); in sdhci_cmd_irq()
3244 struct mmc_request *mrq = host->cmd->mrq; in sdhci_cmd_irq()
3245 u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS); in sdhci_cmd_irq()
3250 if (mrq->sbc && (host->flags & SDHCI_AUTO_CMD23)) { in sdhci_cmd_irq()
3252 __sdhci_finish_mrq(host, mrq); in sdhci_cmd_irq()
3258 sdhci_finish_command(host); in sdhci_cmd_irq()
3261 static void sdhci_adma_show_error(struct sdhci_host *host) in sdhci_adma_show_error() argument
3263 void *desc = host->adma_table; in sdhci_adma_show_error()
3264 dma_addr_t dma = host->adma_addr; in sdhci_adma_show_error()
3266 sdhci_dumpregs(host); in sdhci_adma_show_error()
3271 if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_adma_show_error()
3285 desc += host->desc_sz; in sdhci_adma_show_error()
3286 dma += host->desc_sz; in sdhci_adma_show_error()
3293 static void sdhci_data_irq(struct sdhci_host *host, u32 intmask) in sdhci_data_irq() argument
3299 command = SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND)); in sdhci_data_irq()
3302 host->tuning_done = 1; in sdhci_data_irq()
3303 wake_up(&host->buf_ready_int); in sdhci_data_irq()
3308 if (!host->data) { in sdhci_data_irq()
3309 struct mmc_command *data_cmd = host->data_cmd; in sdhci_data_irq()
3318 host->data_cmd = NULL; in sdhci_data_irq()
3320 __sdhci_finish_mrq(host, data_cmd->mrq); in sdhci_data_irq()
3324 host->data_cmd = NULL; in sdhci_data_irq()
3330 if (host->cmd == data_cmd) in sdhci_data_irq()
3333 __sdhci_finish_mrq(host, data_cmd->mrq); in sdhci_data_irq()
3343 if (host->pending_reset) in sdhci_data_irq()
3347 mmc_hostname(host->mmc), (unsigned)intmask); in sdhci_data_irq()
3348 sdhci_dumpregs(host); in sdhci_data_irq()
3354 host->data->error = -ETIMEDOUT; in sdhci_data_irq()
3356 host->data->error = -EILSEQ; in sdhci_data_irq()
3358 SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND)) in sdhci_data_irq()
3360 host->data->error = -EILSEQ; in sdhci_data_irq()
3362 pr_err("%s: ADMA error: 0x%08x\n", mmc_hostname(host->mmc), in sdhci_data_irq()
3364 sdhci_adma_show_error(host); in sdhci_data_irq()
3365 host->data->error = -EIO; in sdhci_data_irq()
3366 if (host->ops->adma_workaround) in sdhci_data_irq()
3367 host->ops->adma_workaround(host, intmask); in sdhci_data_irq()
3370 if (host->data->error) in sdhci_data_irq()
3371 sdhci_finish_data(host); in sdhci_data_irq()
3374 sdhci_transfer_pio(host); in sdhci_data_irq()
3381 * According to the spec sdhci_readl(host, SDHCI_DMA_ADDRESS) in sdhci_data_irq()
3388 dmastart = sdhci_sdma_address(host); in sdhci_data_irq()
3389 dmanow = dmastart + host->data->bytes_xfered; in sdhci_data_irq()
3396 host->data->bytes_xfered = dmanow - dmastart; in sdhci_data_irq()
3398 &dmastart, host->data->bytes_xfered, &dmanow); in sdhci_data_irq()
3399 sdhci_set_sdma_addr(host, dmanow); in sdhci_data_irq()
3403 if (host->cmd == host->data_cmd) { in sdhci_data_irq()
3409 host->data_early = 1; in sdhci_data_irq()
3411 sdhci_finish_data(host); in sdhci_data_irq()
3417 static inline bool sdhci_defer_done(struct sdhci_host *host, in sdhci_defer_done() argument
3422 return host->pending_reset || host->always_defer_done || in sdhci_defer_done()
3423 ((host->flags & SDHCI_REQ_USE_DMA) && data && in sdhci_defer_done()
3431 struct sdhci_host *host = dev_id; in sdhci_irq() local
3436 spin_lock(&host->lock); in sdhci_irq()
3438 if (host->runtime_suspended) { in sdhci_irq()
3439 spin_unlock(&host->lock); in sdhci_irq()
3443 intmask = sdhci_readl(host, SDHCI_INT_STATUS); in sdhci_irq()
3452 if (host->ops->irq) { in sdhci_irq()
3453 intmask = host->ops->irq(host, intmask); in sdhci_irq()
3461 sdhci_writel(host, mask, SDHCI_INT_STATUS); in sdhci_irq()
3464 u32 present = sdhci_readl(host, SDHCI_PRESENT_STATE) & in sdhci_irq()
3478 host->ier &= ~(SDHCI_INT_CARD_INSERT | in sdhci_irq()
3480 host->ier |= present ? SDHCI_INT_CARD_REMOVE : in sdhci_irq()
3482 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_irq()
3483 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_irq()
3485 sdhci_writel(host, intmask & (SDHCI_INT_CARD_INSERT | in sdhci_irq()
3488 host->thread_isr |= intmask & (SDHCI_INT_CARD_INSERT | in sdhci_irq()
3494 sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, &intmask); in sdhci_irq()
3497 sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK); in sdhci_irq()
3501 mmc_hostname(host->mmc)); in sdhci_irq()
3504 mmc_retune_needed(host->mmc); in sdhci_irq()
3507 (host->ier & SDHCI_INT_CARD_INT)) { in sdhci_irq()
3508 sdhci_enable_sdio_irq_nolock(host, false); in sdhci_irq()
3509 sdio_signal_irq(host->mmc); in sdhci_irq()
3519 sdhci_writel(host, intmask, SDHCI_INT_STATUS); in sdhci_irq()
3525 intmask = sdhci_readl(host, SDHCI_INT_STATUS); in sdhci_irq()
3530 struct mmc_request *mrq = host->mrqs_done[i]; in sdhci_irq()
3535 if (sdhci_defer_done(host, mrq)) { in sdhci_irq()
3539 host->mrqs_done[i] = NULL; in sdhci_irq()
3543 if (host->deferred_cmd) in sdhci_irq()
3546 spin_unlock(&host->lock); in sdhci_irq()
3553 if (host->ops->request_done) in sdhci_irq()
3554 host->ops->request_done(host, mrqs_done[i]); in sdhci_irq()
3556 mmc_request_done(host->mmc, mrqs_done[i]); in sdhci_irq()
3561 mmc_hostname(host->mmc), unexpected); in sdhci_irq()
3562 sdhci_dumpregs(host); in sdhci_irq()
3570 struct sdhci_host *host = dev_id; in sdhci_thread_irq() local
3575 while (!sdhci_request_done(host)) in sdhci_thread_irq()
3578 spin_lock_irqsave(&host->lock, flags); in sdhci_thread_irq()
3580 isr = host->thread_isr; in sdhci_thread_irq()
3581 host->thread_isr = 0; in sdhci_thread_irq()
3583 cmd = host->deferred_cmd; in sdhci_thread_irq()
3584 if (cmd && !sdhci_send_command_retry(host, cmd, flags)) in sdhci_thread_irq()
3585 sdhci_finish_mrq(host, cmd->mrq); in sdhci_thread_irq()
3587 spin_unlock_irqrestore(&host->lock, flags); in sdhci_thread_irq()
3590 struct mmc_host *mmc = host->mmc; in sdhci_thread_irq()
3607 static bool sdhci_cd_irq_can_wakeup(struct sdhci_host *host) in sdhci_cd_irq_can_wakeup() argument
3609 return mmc_card_is_removable(host->mmc) && in sdhci_cd_irq_can_wakeup()
3610 !(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && in sdhci_cd_irq_can_wakeup()
3611 !mmc_can_gpio_cd(host->mmc); in sdhci_cd_irq_can_wakeup()
3617 * Table' in the SD Host Controller Standard Specification.
3622 static bool sdhci_enable_irq_wakeups(struct sdhci_host *host) in sdhci_enable_irq_wakeups() argument
3630 if (sdhci_cd_irq_can_wakeup(host)) { in sdhci_enable_irq_wakeups()
3635 if (mmc_card_wake_sdio_irq(host->mmc)) { in sdhci_enable_irq_wakeups()
3643 val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL); in sdhci_enable_irq_wakeups()
3646 sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL); in sdhci_enable_irq_wakeups()
3648 sdhci_writel(host, irq_val, SDHCI_INT_ENABLE); in sdhci_enable_irq_wakeups()
3650 host->irq_wake_enabled = !enable_irq_wake(host->irq); in sdhci_enable_irq_wakeups()
3652 return host->irq_wake_enabled; in sdhci_enable_irq_wakeups()
3655 static void sdhci_disable_irq_wakeups(struct sdhci_host *host) in sdhci_disable_irq_wakeups() argument
3661 val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL); in sdhci_disable_irq_wakeups()
3663 sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL); in sdhci_disable_irq_wakeups()
3665 disable_irq_wake(host->irq); in sdhci_disable_irq_wakeups()
3667 host->irq_wake_enabled = false; in sdhci_disable_irq_wakeups()
3670 int sdhci_suspend_host(struct sdhci_host *host) in sdhci_suspend_host() argument
3672 sdhci_disable_card_detection(host); in sdhci_suspend_host()
3674 mmc_retune_timer_stop(host->mmc); in sdhci_suspend_host()
3676 if (!device_may_wakeup(mmc_dev(host->mmc)) || in sdhci_suspend_host()
3677 !sdhci_enable_irq_wakeups(host)) { in sdhci_suspend_host()
3678 host->ier = 0; in sdhci_suspend_host()
3679 sdhci_writel(host, 0, SDHCI_INT_ENABLE); in sdhci_suspend_host()
3680 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in sdhci_suspend_host()
3681 free_irq(host->irq, host); in sdhci_suspend_host()
3689 int sdhci_resume_host(struct sdhci_host *host) in sdhci_resume_host() argument
3691 struct mmc_host *mmc = host->mmc; in sdhci_resume_host()
3694 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_resume_host()
3695 if (host->ops->enable_dma) in sdhci_resume_host()
3696 host->ops->enable_dma(host); in sdhci_resume_host()
3699 if ((host->mmc->pm_flags & MMC_PM_KEEP_POWER) && in sdhci_resume_host()
3700 (host->quirks2 & SDHCI_QUIRK2_HOST_OFF_CARD_ON)) { in sdhci_resume_host()
3701 /* Card keeps power but host controller does not */ in sdhci_resume_host()
3702 sdhci_init(host, 0); in sdhci_resume_host()
3703 host->pwr = 0; in sdhci_resume_host()
3704 host->clock = 0; in sdhci_resume_host()
3707 sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER)); in sdhci_resume_host()
3710 if (host->irq_wake_enabled) { in sdhci_resume_host()
3711 sdhci_disable_irq_wakeups(host); in sdhci_resume_host()
3713 ret = request_threaded_irq(host->irq, sdhci_irq, in sdhci_resume_host()
3715 mmc_hostname(host->mmc), host); in sdhci_resume_host()
3720 sdhci_enable_card_detection(host); in sdhci_resume_host()
3727 int sdhci_runtime_suspend_host(struct sdhci_host *host) in sdhci_runtime_suspend_host() argument
3731 mmc_retune_timer_stop(host->mmc); in sdhci_runtime_suspend_host()
3733 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_suspend_host()
3734 host->ier &= SDHCI_INT_CARD_INT; in sdhci_runtime_suspend_host()
3735 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_runtime_suspend_host()
3736 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_runtime_suspend_host()
3737 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_suspend_host()
3739 synchronize_hardirq(host->irq); in sdhci_runtime_suspend_host()
3741 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_suspend_host()
3742 host->runtime_suspended = true; in sdhci_runtime_suspend_host()
3743 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_suspend_host()
3749 int sdhci_runtime_resume_host(struct sdhci_host *host, int soft_reset) in sdhci_runtime_resume_host() argument
3751 struct mmc_host *mmc = host->mmc; in sdhci_runtime_resume_host()
3753 int host_flags = host->flags; in sdhci_runtime_resume_host()
3756 if (host->ops->enable_dma) in sdhci_runtime_resume_host()
3757 host->ops->enable_dma(host); in sdhci_runtime_resume_host()
3760 sdhci_init(host, soft_reset); in sdhci_runtime_resume_host()
3765 host->pwr = 0; in sdhci_runtime_resume_host()
3766 host->clock = 0; in sdhci_runtime_resume_host()
3771 !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) { in sdhci_runtime_resume_host()
3772 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_resume_host()
3773 sdhci_enable_preset_value(host, true); in sdhci_runtime_resume_host()
3774 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_resume_host()
3782 spin_lock_irqsave(&host->lock, flags); in sdhci_runtime_resume_host()
3784 host->runtime_suspended = false; in sdhci_runtime_resume_host()
3788 sdhci_enable_sdio_irq_nolock(host, true); in sdhci_runtime_resume_host()
3791 sdhci_enable_card_detection(host); in sdhci_runtime_resume_host()
3793 spin_unlock_irqrestore(&host->lock, flags); in sdhci_runtime_resume_host()
3809 struct sdhci_host *host = mmc_priv(mmc); in sdhci_cqe_enable() local
3813 spin_lock_irqsave(&host->lock, flags); in sdhci_cqe_enable()
3815 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); in sdhci_cqe_enable()
3818 * Host from V4.10 supports ADMA3 DMA type. in sdhci_cqe_enable()
3822 if (host->v4_mode && (host->caps1 & SDHCI_CAN_DO_ADMA3)) in sdhci_cqe_enable()
3824 else if (host->flags & SDHCI_USE_64_BIT_DMA) in sdhci_cqe_enable()
3828 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); in sdhci_cqe_enable()
3830 sdhci_writew(host, SDHCI_MAKE_BLKSZ(host->sdma_boundary, 512), in sdhci_cqe_enable()
3834 sdhci_set_timeout(host, NULL); in sdhci_cqe_enable()
3836 host->ier = host->cqe_ier; in sdhci_cqe_enable()
3838 sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); in sdhci_cqe_enable()
3839 sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); in sdhci_cqe_enable()
3841 host->cqe_on = true; in sdhci_cqe_enable()
3844 mmc_hostname(mmc), host->ier, in sdhci_cqe_enable()
3845 sdhci_readl(host, SDHCI_INT_STATUS)); in sdhci_cqe_enable()
3847 spin_unlock_irqrestore(&host->lock, flags); in sdhci_cqe_enable()
3853 struct sdhci_host *host = mmc_priv(mmc); in sdhci_cqe_disable() local
3856 spin_lock_irqsave(&host->lock, flags); in sdhci_cqe_disable()
3858 sdhci_set_default_irqs(host); in sdhci_cqe_disable()
3860 host->cqe_on = false; in sdhci_cqe_disable()
3863 sdhci_do_reset(host, SDHCI_RESET_CMD); in sdhci_cqe_disable()
3864 sdhci_do_reset(host, SDHCI_RESET_DATA); in sdhci_cqe_disable()
3868 mmc_hostname(mmc), host->ier, in sdhci_cqe_disable()
3869 sdhci_readl(host, SDHCI_INT_STATUS)); in sdhci_cqe_disable()
3871 spin_unlock_irqrestore(&host->lock, flags); in sdhci_cqe_disable()
3875 bool sdhci_cqe_irq(struct sdhci_host *host, u32 intmask, int *cmd_error, in sdhci_cqe_irq() argument
3880 if (!host->cqe_on) in sdhci_cqe_irq()
3900 mask = intmask & host->cqe_ier; in sdhci_cqe_irq()
3901 sdhci_writel(host, mask, SDHCI_INT_STATUS); in sdhci_cqe_irq()
3905 mmc_hostname(host->mmc)); in sdhci_cqe_irq()
3907 intmask &= ~(host->cqe_ier | SDHCI_INT_ERROR); in sdhci_cqe_irq()
3909 sdhci_writel(host, intmask, SDHCI_INT_STATUS); in sdhci_cqe_irq()
3911 mmc_hostname(host->mmc), intmask); in sdhci_cqe_irq()
3912 sdhci_dumpregs(host); in sdhci_cqe_irq()
3929 struct sdhci_host *host; in sdhci_alloc_host() local
3937 host = mmc_priv(mmc); in sdhci_alloc_host()
3938 host->mmc = mmc; in sdhci_alloc_host()
3939 host->mmc_host_ops = sdhci_ops; in sdhci_alloc_host()
3940 mmc->ops = &host->mmc_host_ops; in sdhci_alloc_host()
3942 host->flags = SDHCI_SIGNALING_330; in sdhci_alloc_host()
3944 host->cqe_ier = SDHCI_CQE_INT_MASK; in sdhci_alloc_host()
3945 host->cqe_err_ier = SDHCI_CQE_INT_ERR_MASK; in sdhci_alloc_host()
3947 host->tuning_delay = -1; in sdhci_alloc_host()
3948 host->tuning_loop_count = MAX_TUNING_LOOP; in sdhci_alloc_host()
3950 host->sdma_boundary = SDHCI_DEFAULT_BOUNDARY_ARG; in sdhci_alloc_host()
3957 host->adma_table_cnt = SDHCI_MAX_SEGS * 2 + 1; in sdhci_alloc_host()
3959 return host; in sdhci_alloc_host()
3964 static int sdhci_set_dma_mask(struct sdhci_host *host) in sdhci_set_dma_mask() argument
3966 struct mmc_host *mmc = host->mmc; in sdhci_set_dma_mask()
3970 if (host->quirks2 & SDHCI_QUIRK2_BROKEN_64_BIT_DMA) in sdhci_set_dma_mask()
3971 host->flags &= ~SDHCI_USE_64_BIT_DMA; in sdhci_set_dma_mask()
3974 if (host->flags & SDHCI_USE_64_BIT_DMA) { in sdhci_set_dma_mask()
3979 host->flags &= ~SDHCI_USE_64_BIT_DMA; in sdhci_set_dma_mask()
3994 void __sdhci_read_caps(struct sdhci_host *host, const u16 *ver, in __sdhci_read_caps() argument
4001 if (host->read_caps) in __sdhci_read_caps()
4004 host->read_caps = true; in __sdhci_read_caps()
4007 host->quirks = debug_quirks; in __sdhci_read_caps()
4010 host->quirks2 = debug_quirks2; in __sdhci_read_caps()
4012 sdhci_do_reset(host, SDHCI_RESET_ALL); in __sdhci_read_caps()
4014 if (host->v4_mode) in __sdhci_read_caps()
4015 sdhci_do_enable_v4_mode(host); in __sdhci_read_caps()
4017 device_property_read_u64_array(mmc_dev(host->mmc), in __sdhci_read_caps()
4019 device_property_read_u64_array(mmc_dev(host->mmc), in __sdhci_read_caps()
4022 v = ver ? *ver : sdhci_readw(host, SDHCI_HOST_VERSION); in __sdhci_read_caps()
4023 host->version = (v & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT; in __sdhci_read_caps()
4025 if (host->quirks & SDHCI_QUIRK_MISSING_CAPS) in __sdhci_read_caps()
4029 host->caps = *caps; in __sdhci_read_caps()
4031 host->caps = sdhci_readl(host, SDHCI_CAPABILITIES); in __sdhci_read_caps()
4032 host->caps &= ~lower_32_bits(dt_caps_mask); in __sdhci_read_caps()
4033 host->caps |= lower_32_bits(dt_caps); in __sdhci_read_caps()
4036 if (host->version < SDHCI_SPEC_300) in __sdhci_read_caps()
4040 host->caps1 = *caps1; in __sdhci_read_caps()
4042 host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1); in __sdhci_read_caps()
4043 host->caps1 &= ~upper_32_bits(dt_caps_mask); in __sdhci_read_caps()
4044 host->caps1 |= upper_32_bits(dt_caps); in __sdhci_read_caps()
4049 static void sdhci_allocate_bounce_buffer(struct sdhci_host *host) in sdhci_allocate_bounce_buffer() argument
4051 struct mmc_host *mmc = host->mmc; in sdhci_allocate_bounce_buffer()
4076 host->bounce_buffer = devm_kmalloc(mmc->parent, in sdhci_allocate_bounce_buffer()
4079 if (!host->bounce_buffer) { in sdhci_allocate_bounce_buffer()
4090 host->bounce_addr = dma_map_single(mmc->parent, in sdhci_allocate_bounce_buffer()
4091 host->bounce_buffer, in sdhci_allocate_bounce_buffer()
4094 ret = dma_mapping_error(mmc->parent, host->bounce_addr); in sdhci_allocate_bounce_buffer()
4098 host->bounce_buffer_size = bounce_size; in sdhci_allocate_bounce_buffer()
4109 static inline bool sdhci_can_64bit_dma(struct sdhci_host *host) in sdhci_can_64bit_dma() argument
4112 * According to SD Host Controller spec v4.10, bit[27] added from in sdhci_can_64bit_dma()
4116 if (host->version >= SDHCI_SPEC_410 && host->v4_mode) in sdhci_can_64bit_dma()
4117 return host->caps & SDHCI_CAN_64BIT_V4; in sdhci_can_64bit_dma()
4119 return host->caps & SDHCI_CAN_64BIT; in sdhci_can_64bit_dma()
4122 int sdhci_setup_host(struct sdhci_host *host) in sdhci_setup_host() argument
4132 WARN_ON(host == NULL); in sdhci_setup_host()
4133 if (host == NULL) in sdhci_setup_host()
4136 mmc = host->mmc; in sdhci_setup_host()
4140 * early before resetting the host and reading the capabilities so that in sdhci_setup_host()
4141 * the host can take the appropriate action if regulators are not in sdhci_setup_host()
4152 sdhci_readw(host, SDHCI_HOST_VERSION), in sdhci_setup_host()
4153 sdhci_readl(host, SDHCI_PRESENT_STATE)); in sdhci_setup_host()
4155 sdhci_readl(host, SDHCI_CAPABILITIES), in sdhci_setup_host()
4156 sdhci_readl(host, SDHCI_CAPABILITIES_1)); in sdhci_setup_host()
4158 sdhci_read_caps(host); in sdhci_setup_host()
4160 override_timeout_clk = host->timeout_clk; in sdhci_setup_host()
4162 if (host->version > SDHCI_SPEC_420) { in sdhci_setup_host()
4164 mmc_hostname(mmc), host->version); in sdhci_setup_host()
4167 if (host->quirks & SDHCI_QUIRK_FORCE_DMA) in sdhci_setup_host()
4168 host->flags |= SDHCI_USE_SDMA; in sdhci_setup_host()
4169 else if (!(host->caps & SDHCI_CAN_DO_SDMA)) in sdhci_setup_host()
4172 host->flags |= SDHCI_USE_SDMA; in sdhci_setup_host()
4174 if ((host->quirks & SDHCI_QUIRK_BROKEN_DMA) && in sdhci_setup_host()
4175 (host->flags & SDHCI_USE_SDMA)) { in sdhci_setup_host()
4177 host->flags &= ~SDHCI_USE_SDMA; in sdhci_setup_host()
4180 if ((host->version >= SDHCI_SPEC_200) && in sdhci_setup_host()
4181 (host->caps & SDHCI_CAN_DO_ADMA2)) in sdhci_setup_host()
4182 host->flags |= SDHCI_USE_ADMA; in sdhci_setup_host()
4184 if ((host->quirks & SDHCI_QUIRK_BROKEN_ADMA) && in sdhci_setup_host()
4185 (host->flags & SDHCI_USE_ADMA)) { in sdhci_setup_host()
4187 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4190 if (sdhci_can_64bit_dma(host)) in sdhci_setup_host()
4191 host->flags |= SDHCI_USE_64_BIT_DMA; in sdhci_setup_host()
4193 if (host->use_external_dma) { in sdhci_setup_host()
4194 ret = sdhci_external_dma_init(host); in sdhci_setup_host()
4202 sdhci_switch_external_dma(host, false); in sdhci_setup_host()
4205 host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA); in sdhci_setup_host()
4208 if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { in sdhci_setup_host()
4209 if (host->ops->set_dma_mask) in sdhci_setup_host()
4210 ret = host->ops->set_dma_mask(host); in sdhci_setup_host()
4212 ret = sdhci_set_dma_mask(host); in sdhci_setup_host()
4214 if (!ret && host->ops->enable_dma) in sdhci_setup_host()
4215 ret = host->ops->enable_dma(host); in sdhci_setup_host()
4220 host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA); in sdhci_setup_host()
4227 if ((host->flags & SDHCI_USE_64_BIT_DMA) && !host->v4_mode) in sdhci_setup_host()
4228 host->flags &= ~SDHCI_USE_SDMA; in sdhci_setup_host()
4230 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4234 if (!(host->flags & SDHCI_USE_64_BIT_DMA)) in sdhci_setup_host()
4235 host->alloc_desc_sz = SDHCI_ADMA2_32_DESC_SZ; in sdhci_setup_host()
4236 else if (!host->alloc_desc_sz) in sdhci_setup_host()
4237 host->alloc_desc_sz = SDHCI_ADMA2_64_DESC_SZ(host); in sdhci_setup_host()
4239 host->desc_sz = host->alloc_desc_sz; in sdhci_setup_host()
4240 host->adma_table_sz = host->adma_table_cnt * host->desc_sz; in sdhci_setup_host()
4242 host->align_buffer_sz = SDHCI_MAX_SEGS * SDHCI_ADMA2_ALIGN; in sdhci_setup_host()
4248 host->align_buffer_sz + host->adma_table_sz, in sdhci_setup_host()
4253 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4254 } else if ((dma + host->align_buffer_sz) & in sdhci_setup_host()
4258 host->flags &= ~SDHCI_USE_ADMA; in sdhci_setup_host()
4259 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_setup_host()
4260 host->adma_table_sz, buf, dma); in sdhci_setup_host()
4262 host->align_buffer = buf; in sdhci_setup_host()
4263 host->align_addr = dma; in sdhci_setup_host()
4265 host->adma_table = buf + host->align_buffer_sz; in sdhci_setup_host()
4266 host->adma_addr = dma + host->align_buffer_sz; in sdhci_setup_host()
4275 if (!(host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA))) { in sdhci_setup_host()
4276 host->dma_mask = DMA_BIT_MASK(64); in sdhci_setup_host()
4277 mmc_dev(mmc)->dma_mask = &host->dma_mask; in sdhci_setup_host()
4280 if (host->version >= SDHCI_SPEC_300) in sdhci_setup_host()
4281 host->max_clk = FIELD_GET(SDHCI_CLOCK_V3_BASE_MASK, host->caps); in sdhci_setup_host()
4283 host->max_clk = FIELD_GET(SDHCI_CLOCK_BASE_MASK, host->caps); in sdhci_setup_host()
4285 host->max_clk *= 1000000; in sdhci_setup_host()
4286 if (host->max_clk == 0 || host->quirks & in sdhci_setup_host()
4288 if (!host->ops->get_max_clock) { in sdhci_setup_host()
4294 host->max_clk = host->ops->get_max_clock(host); in sdhci_setup_host()
4298 * In case of Host Controller v3.00, find out whether clock in sdhci_setup_host()
4301 host->clk_mul = FIELD_GET(SDHCI_CLOCK_MUL_MASK, host->caps1); in sdhci_setup_host()
4309 if (host->clk_mul) in sdhci_setup_host()
4310 host->clk_mul += 1; in sdhci_setup_host()
4313 * Set host parameters. in sdhci_setup_host()
4315 max_clk = host->max_clk; in sdhci_setup_host()
4317 if (host->ops->get_min_clock) in sdhci_setup_host()
4318 mmc->f_min = host->ops->get_min_clock(host); in sdhci_setup_host()
4319 else if (host->version >= SDHCI_SPEC_300) { in sdhci_setup_host()
4320 if (host->clk_mul) in sdhci_setup_host()
4321 max_clk = host->max_clk * host->clk_mul; in sdhci_setup_host()
4326 mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300; in sdhci_setup_host()
4328 mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200; in sdhci_setup_host()
4333 if (!(host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)) { in sdhci_setup_host()
4334 host->timeout_clk = FIELD_GET(SDHCI_TIMEOUT_CLK_MASK, host->caps); in sdhci_setup_host()
4336 if (host->caps & SDHCI_TIMEOUT_CLK_UNIT) in sdhci_setup_host()
4337 host->timeout_clk *= 1000; in sdhci_setup_host()
4339 if (host->timeout_clk == 0) { in sdhci_setup_host()
4340 if (!host->ops->get_timeout_clock) { in sdhci_setup_host()
4347 host->timeout_clk = in sdhci_setup_host()
4348 DIV_ROUND_UP(host->ops->get_timeout_clock(host), in sdhci_setup_host()
4353 host->timeout_clk = override_timeout_clk; in sdhci_setup_host()
4355 mmc->max_busy_timeout = host->ops->get_max_timeout_count ? in sdhci_setup_host()
4356 host->ops->get_max_timeout_count(host) : 1 << 27; in sdhci_setup_host()
4357 mmc->max_busy_timeout /= host->timeout_clk; in sdhci_setup_host()
4360 if (host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT && in sdhci_setup_host()
4361 !host->ops->get_max_timeout_count) in sdhci_setup_host()
4367 if (host->quirks & SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12) in sdhci_setup_host()
4368 host->flags |= SDHCI_AUTO_CMD12; in sdhci_setup_host()
4374 if ((host->version >= SDHCI_SPEC_300) && in sdhci_setup_host()
4375 ((host->flags & SDHCI_USE_ADMA) || in sdhci_setup_host()
4376 !(host->flags & SDHCI_USE_SDMA) || host->v4_mode) && in sdhci_setup_host()
4377 !(host->quirks2 & SDHCI_QUIRK2_ACMD23_BROKEN)) { in sdhci_setup_host()
4378 host->flags |= SDHCI_AUTO_CMD23; in sdhci_setup_host()
4391 if (!(host->quirks & SDHCI_QUIRK_FORCE_1_BIT_DATA)) in sdhci_setup_host()
4394 if (host->quirks2 & SDHCI_QUIRK2_HOST_NO_CMD23) in sdhci_setup_host()
4397 if (host->caps & SDHCI_CAN_DO_HISPD) in sdhci_setup_host()
4400 if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && in sdhci_setup_host()
4402 mmc_gpio_get_cd(host->mmc) < 0) in sdhci_setup_host()
4408 host->sdhci_core_to_disable_vqmmc = !ret; in sdhci_setup_host()
4414 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | in sdhci_setup_host()
4421 host->flags &= ~SDHCI_SIGNALING_330; in sdhci_setup_host()
4431 if (host->quirks2 & SDHCI_QUIRK2_NO_1_8_V) { in sdhci_setup_host()
4432 host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | in sdhci_setup_host()
4447 if (host->caps1 & (SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 | in sdhci_setup_host()
4452 if (host->caps1 & SDHCI_SUPPORT_SDR104) { in sdhci_setup_host()
4457 if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200)) in sdhci_setup_host()
4459 } else if (host->caps1 & SDHCI_SUPPORT_SDR50) { in sdhci_setup_host()
4463 if (host->quirks2 & SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 && in sdhci_setup_host()
4464 (host->caps1 & SDHCI_SUPPORT_HS400)) in sdhci_setup_host()
4473 if ((host->caps1 & SDHCI_SUPPORT_DDR50) && in sdhci_setup_host()
4474 !(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50)) in sdhci_setup_host()
4477 /* Does the host need tuning for SDR50? */ in sdhci_setup_host()
4478 if (host->caps1 & SDHCI_USE_SDR50_TUNING) in sdhci_setup_host()
4479 host->flags |= SDHCI_SDR50_NEEDS_TUNING; in sdhci_setup_host()
4481 /* Driver Type(s) (A, C, D) supported by the host */ in sdhci_setup_host()
4482 if (host->caps1 & SDHCI_DRIVER_TYPE_A) in sdhci_setup_host()
4484 if (host->caps1 & SDHCI_DRIVER_TYPE_C) in sdhci_setup_host()
4486 if (host->caps1 & SDHCI_DRIVER_TYPE_D) in sdhci_setup_host()
4490 host->tuning_count = FIELD_GET(SDHCI_RETUNING_TIMER_COUNT_MASK, in sdhci_setup_host()
4491 host->caps1); in sdhci_setup_host()
4497 if (host->tuning_count) in sdhci_setup_host()
4498 host->tuning_count = 1 << (host->tuning_count - 1); in sdhci_setup_host()
4500 /* Re-tuning mode supported by the Host Controller */ in sdhci_setup_host()
4501 host->tuning_mode = FIELD_GET(SDHCI_RETUNING_MODE_MASK, host->caps1); in sdhci_setup_host()
4506 * According to SD Host Controller spec v3.00, if the Host System in sdhci_setup_host()
4507 * can afford more than 150mA, Host Driver should set XPC to 1. Also in sdhci_setup_host()
4512 max_current_caps = sdhci_readl(host, SDHCI_MAX_CURRENT); in sdhci_setup_host()
4529 if (host->caps & SDHCI_CAN_VDD_330) { in sdhci_setup_host()
4536 if (host->caps & SDHCI_CAN_VDD_300) { in sdhci_setup_host()
4543 if (host->caps & SDHCI_CAN_VDD_180) { in sdhci_setup_host()
4551 /* If OCR set by host, use it instead. */ in sdhci_setup_host()
4552 if (host->ocr_mask) in sdhci_setup_host()
4553 ocr_avail = host->ocr_mask; in sdhci_setup_host()
4561 if (host->ocr_avail_sdio) in sdhci_setup_host()
4562 mmc->ocr_avail_sdio &= host->ocr_avail_sdio; in sdhci_setup_host()
4564 if (host->ocr_avail_sd) in sdhci_setup_host()
4565 mmc->ocr_avail_sd &= host->ocr_avail_sd; in sdhci_setup_host()
4569 if (host->ocr_avail_mmc) in sdhci_setup_host()
4570 mmc->ocr_avail_mmc &= host->ocr_avail_mmc; in sdhci_setup_host()
4583 host->flags |= SDHCI_SIGNALING_180; in sdhci_setup_host()
4586 host->flags |= SDHCI_SIGNALING_120; in sdhci_setup_host()
4588 spin_lock_init(&host->lock); in sdhci_setup_host()
4601 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4603 } else if (host->flags & SDHCI_USE_SDMA) { in sdhci_setup_host()
4620 if (host->flags & SDHCI_USE_ADMA) { in sdhci_setup_host()
4621 if (host->quirks & SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC) in sdhci_setup_host()
4633 if (host->quirks & SDHCI_QUIRK_FORCE_BLK_SZ_2048) { in sdhci_setup_host()
4636 mmc->max_blk_size = (host->caps & SDHCI_MAX_BLOCK_MASK) >> in sdhci_setup_host()
4650 mmc->max_blk_count = (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535; in sdhci_setup_host()
4654 sdhci_allocate_bounce_buffer(host); in sdhci_setup_host()
4659 if (host->sdhci_core_to_disable_vqmmc) in sdhci_setup_host()
4662 if (host->align_buffer) in sdhci_setup_host()
4663 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_setup_host()
4664 host->adma_table_sz, host->align_buffer, in sdhci_setup_host()
4665 host->align_addr); in sdhci_setup_host()
4666 host->adma_table = NULL; in sdhci_setup_host()
4667 host->align_buffer = NULL; in sdhci_setup_host()
4673 void sdhci_cleanup_host(struct sdhci_host *host) in sdhci_cleanup_host() argument
4675 struct mmc_host *mmc = host->mmc; in sdhci_cleanup_host()
4677 if (host->sdhci_core_to_disable_vqmmc) in sdhci_cleanup_host()
4680 if (host->align_buffer) in sdhci_cleanup_host()
4681 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_cleanup_host()
4682 host->adma_table_sz, host->align_buffer, in sdhci_cleanup_host()
4683 host->align_addr); in sdhci_cleanup_host()
4685 if (host->use_external_dma) in sdhci_cleanup_host()
4686 sdhci_external_dma_release(host); in sdhci_cleanup_host()
4688 host->adma_table = NULL; in sdhci_cleanup_host()
4689 host->align_buffer = NULL; in sdhci_cleanup_host()
4693 int __sdhci_add_host(struct sdhci_host *host) in __sdhci_add_host() argument
4696 struct mmc_host *mmc = host->mmc; in __sdhci_add_host()
4700 (host->quirks & SDHCI_QUIRK_BROKEN_CQE)) { in __sdhci_add_host()
4705 host->complete_wq = alloc_workqueue("sdhci", flags, 0); in __sdhci_add_host()
4706 if (!host->complete_wq) in __sdhci_add_host()
4709 INIT_WORK(&host->complete_work, sdhci_complete_work); in __sdhci_add_host()
4711 timer_setup(&host->timer, sdhci_timeout_timer, 0); in __sdhci_add_host()
4712 timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0); in __sdhci_add_host()
4714 init_waitqueue_head(&host->buf_ready_int); in __sdhci_add_host()
4716 sdhci_init(host, 0); in __sdhci_add_host()
4718 ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq, in __sdhci_add_host()
4719 IRQF_SHARED, mmc_hostname(mmc), host); in __sdhci_add_host()
4722 mmc_hostname(mmc), host->irq, ret); in __sdhci_add_host()
4726 ret = sdhci_led_register(host); in __sdhci_add_host()
4738 mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)), in __sdhci_add_host()
4739 host->use_external_dma ? "External DMA" : in __sdhci_add_host()
4740 (host->flags & SDHCI_USE_ADMA) ? in __sdhci_add_host()
4741 (host->flags & SDHCI_USE_64_BIT_DMA) ? "ADMA 64-bit" : "ADMA" : in __sdhci_add_host()
4742 (host->flags & SDHCI_USE_SDMA) ? "DMA" : "PIO"); in __sdhci_add_host()
4744 sdhci_enable_card_detection(host); in __sdhci_add_host()
4749 sdhci_led_unregister(host); in __sdhci_add_host()
4751 sdhci_do_reset(host, SDHCI_RESET_ALL); in __sdhci_add_host()
4752 sdhci_writel(host, 0, SDHCI_INT_ENABLE); in __sdhci_add_host()
4753 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in __sdhci_add_host()
4754 free_irq(host->irq, host); in __sdhci_add_host()
4756 destroy_workqueue(host->complete_wq); in __sdhci_add_host()
4762 int sdhci_add_host(struct sdhci_host *host) in sdhci_add_host() argument
4766 ret = sdhci_setup_host(host); in sdhci_add_host()
4770 ret = __sdhci_add_host(host); in sdhci_add_host()
4777 sdhci_cleanup_host(host); in sdhci_add_host()
4783 void sdhci_remove_host(struct sdhci_host *host, int dead) in sdhci_remove_host() argument
4785 struct mmc_host *mmc = host->mmc; in sdhci_remove_host()
4789 spin_lock_irqsave(&host->lock, flags); in sdhci_remove_host()
4791 host->flags |= SDHCI_DEVICE_DEAD; in sdhci_remove_host()
4793 if (sdhci_has_requests(host)) { in sdhci_remove_host()
4796 sdhci_error_out_mrqs(host, -ENOMEDIUM); in sdhci_remove_host()
4799 spin_unlock_irqrestore(&host->lock, flags); in sdhci_remove_host()
4802 sdhci_disable_card_detection(host); in sdhci_remove_host()
4806 sdhci_led_unregister(host); in sdhci_remove_host()
4809 sdhci_do_reset(host, SDHCI_RESET_ALL); in sdhci_remove_host()
4811 sdhci_writel(host, 0, SDHCI_INT_ENABLE); in sdhci_remove_host()
4812 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); in sdhci_remove_host()
4813 free_irq(host->irq, host); in sdhci_remove_host()
4815 del_timer_sync(&host->timer); in sdhci_remove_host()
4816 del_timer_sync(&host->data_timer); in sdhci_remove_host()
4818 destroy_workqueue(host->complete_wq); in sdhci_remove_host()
4820 if (host->sdhci_core_to_disable_vqmmc) in sdhci_remove_host()
4823 if (host->align_buffer) in sdhci_remove_host()
4824 dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz + in sdhci_remove_host()
4825 host->adma_table_sz, host->align_buffer, in sdhci_remove_host()
4826 host->align_addr); in sdhci_remove_host()
4828 if (host->use_external_dma) in sdhci_remove_host()
4829 sdhci_external_dma_release(host); in sdhci_remove_host()
4831 host->adma_table = NULL; in sdhci_remove_host()
4832 host->align_buffer = NULL; in sdhci_remove_host()
4837 void sdhci_free_host(struct sdhci_host *host) in sdhci_free_host() argument
4839 mmc_free_host(host->mmc); in sdhci_free_host()
4853 ": Secure Digital Host Controller Interface driver\n"); in sdhci_drv_init()
4870 MODULE_DESCRIPTION("Secure Digital Host Controller Interface core driver");