Lines Matching full:host
29 #include <linux/mmc/host.h>
116 spin_lock_bh(&slot->host->lock); in dw_mci_req_show()
142 spin_unlock_bh(&slot->host->lock); in dw_mci_req_show()
150 struct dw_mci *host = s->private; in dw_mci_regs_show() local
152 pm_runtime_get_sync(host->dev); in dw_mci_regs_show()
154 seq_printf(s, "STATUS:\t0x%08x\n", mci_readl(host, STATUS)); in dw_mci_regs_show()
155 seq_printf(s, "RINTSTS:\t0x%08x\n", mci_readl(host, RINTSTS)); in dw_mci_regs_show()
156 seq_printf(s, "CMD:\t0x%08x\n", mci_readl(host, CMD)); in dw_mci_regs_show()
157 seq_printf(s, "CTRL:\t0x%08x\n", mci_readl(host, CTRL)); in dw_mci_regs_show()
158 seq_printf(s, "INTMASK:\t0x%08x\n", mci_readl(host, INTMASK)); in dw_mci_regs_show()
159 seq_printf(s, "CLKENA:\t0x%08x\n", mci_readl(host, CLKENA)); in dw_mci_regs_show()
161 pm_runtime_put_autosuspend(host->dev); in dw_mci_regs_show()
170 struct dw_mci *host = slot->host; in dw_mci_init_debugfs() local
177 debugfs_create_file("regs", S_IRUSR, root, host, &dw_mci_regs_fops); in dw_mci_init_debugfs()
179 debugfs_create_u32("state", S_IRUSR, root, &host->state); in dw_mci_init_debugfs()
181 &host->pending_events); in dw_mci_init_debugfs()
183 &host->completed_events); in dw_mci_init_debugfs()
187 static bool dw_mci_ctrl_reset(struct dw_mci *host, u32 reset) in dw_mci_ctrl_reset() argument
191 ctrl = mci_readl(host, CTRL); in dw_mci_ctrl_reset()
193 mci_writel(host, CTRL, ctrl); in dw_mci_ctrl_reset()
196 if (readl_poll_timeout_atomic(host->regs + SDMMC_CTRL, ctrl, in dw_mci_ctrl_reset()
199 dev_err(host->dev, in dw_mci_ctrl_reset()
208 static void dw_mci_wait_while_busy(struct dw_mci *host, u32 cmd_flags) in dw_mci_wait_while_busy() argument
222 if (readl_poll_timeout_atomic(host->regs + SDMMC_STATUS, in dw_mci_wait_while_busy()
226 dev_err(host->dev, "Busy; trying anyway\n"); in dw_mci_wait_while_busy()
232 struct dw_mci *host = slot->host; in mci_send_cmd() local
235 mci_writel(host, CMDARG, arg); in mci_send_cmd()
237 dw_mci_wait_while_busy(host, cmd); in mci_send_cmd()
238 mci_writel(host, CMD, SDMMC_CMD_START | cmd); in mci_send_cmd()
240 if (readl_poll_timeout_atomic(host->regs + SDMMC_CMD, cmd_status, in mci_send_cmd()
251 struct dw_mci *host = slot->host; in dw_mci_prepare_command() local
273 WARN_ON(slot->host->state != STATE_SENDING_CMD); in dw_mci_prepare_command()
274 slot->host->state = STATE_SENDING_CMD11; in dw_mci_prepare_command()
287 clk_en_a = mci_readl(host, CLKENA); in dw_mci_prepare_command()
289 mci_writel(host, CLKENA, clk_en_a); in dw_mci_prepare_command()
316 static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd) in dw_mci_prep_stop_abort() argument
324 stop = &host->stop_abort; in dw_mci_prep_stop_abort()
349 if (!test_bit(DW_MMC_CARD_NO_USE_HOLD, &host->slot->flags)) in dw_mci_prep_stop_abort()
355 static inline void dw_mci_set_cto(struct dw_mci *host) in dw_mci_set_cto() argument
362 cto_clks = mci_readl(host, TMOUT) & 0xff; in dw_mci_set_cto()
363 cto_div = (mci_readl(host, CLKDIV) & 0xff) * 2; in dw_mci_set_cto()
368 host->bus_hz); in dw_mci_set_cto()
386 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_set_cto()
387 if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) in dw_mci_set_cto()
388 mod_timer(&host->cto_timer, in dw_mci_set_cto()
390 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_set_cto()
393 static void dw_mci_start_command(struct dw_mci *host, in dw_mci_start_command() argument
396 host->cmd = cmd; in dw_mci_start_command()
397 dev_vdbg(host->dev, in dw_mci_start_command()
401 mci_writel(host, CMDARG, cmd->arg); in dw_mci_start_command()
403 dw_mci_wait_while_busy(host, cmd_flags); in dw_mci_start_command()
405 mci_writel(host, CMD, cmd_flags | SDMMC_CMD_START); in dw_mci_start_command()
409 dw_mci_set_cto(host); in dw_mci_start_command()
412 static inline void send_stop_abort(struct dw_mci *host, struct mmc_data *data) in send_stop_abort() argument
414 struct mmc_command *stop = &host->stop_abort; in send_stop_abort()
416 dw_mci_start_command(host, stop, host->stop_cmdr); in send_stop_abort()
420 static void dw_mci_stop_dma(struct dw_mci *host) in dw_mci_stop_dma() argument
422 if (host->using_dma) { in dw_mci_stop_dma()
423 host->dma_ops->stop(host); in dw_mci_stop_dma()
424 host->dma_ops->cleanup(host); in dw_mci_stop_dma()
428 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_stop_dma()
431 static void dw_mci_dma_cleanup(struct dw_mci *host) in dw_mci_dma_cleanup() argument
433 struct mmc_data *data = host->data; in dw_mci_dma_cleanup()
436 dma_unmap_sg(host->dev, in dw_mci_dma_cleanup()
444 static void dw_mci_idmac_reset(struct dw_mci *host) in dw_mci_idmac_reset() argument
446 u32 bmod = mci_readl(host, BMOD); in dw_mci_idmac_reset()
449 mci_writel(host, BMOD, bmod); in dw_mci_idmac_reset()
452 static void dw_mci_idmac_stop_dma(struct dw_mci *host) in dw_mci_idmac_stop_dma() argument
457 temp = mci_readl(host, CTRL); in dw_mci_idmac_stop_dma()
460 mci_writel(host, CTRL, temp); in dw_mci_idmac_stop_dma()
463 temp = mci_readl(host, BMOD); in dw_mci_idmac_stop_dma()
466 mci_writel(host, BMOD, temp); in dw_mci_idmac_stop_dma()
471 struct dw_mci *host = arg; in dw_mci_dmac_complete_dma() local
472 struct mmc_data *data = host->data; in dw_mci_dmac_complete_dma()
474 dev_vdbg(host->dev, "DMA complete\n"); in dw_mci_dmac_complete_dma()
476 if ((host->use_dma == TRANS_MODE_EDMAC) && in dw_mci_dmac_complete_dma()
479 dma_sync_sg_for_cpu(mmc_dev(host->slot->mmc), in dw_mci_dmac_complete_dma()
484 host->dma_ops->cleanup(host); in dw_mci_dmac_complete_dma()
491 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_dmac_complete_dma()
492 tasklet_schedule(&host->tasklet); in dw_mci_dmac_complete_dma()
496 static int dw_mci_idmac_init(struct dw_mci *host) in dw_mci_idmac_init() argument
500 if (host->dma_64bit_address == 1) { in dw_mci_idmac_init()
503 host->ring_size = in dw_mci_idmac_init()
507 for (i = 0, p = host->sg_cpu; i < host->ring_size - 1; in dw_mci_idmac_init()
509 p->des6 = (host->sg_dma + in dw_mci_idmac_init()
513 p->des7 = (u64)(host->sg_dma + in dw_mci_idmac_init()
524 p->des6 = host->sg_dma & 0xffffffff; in dw_mci_idmac_init()
525 p->des7 = (u64)host->sg_dma >> 32; in dw_mci_idmac_init()
531 host->ring_size = in dw_mci_idmac_init()
535 for (i = 0, p = host->sg_cpu; in dw_mci_idmac_init()
536 i < host->ring_size - 1; in dw_mci_idmac_init()
538 p->des3 = cpu_to_le32(host->sg_dma + in dw_mci_idmac_init()
545 p->des3 = cpu_to_le32(host->sg_dma); in dw_mci_idmac_init()
549 dw_mci_idmac_reset(host); in dw_mci_idmac_init()
551 if (host->dma_64bit_address == 1) { in dw_mci_idmac_init()
553 mci_writel(host, IDSTS64, IDMAC_INT_CLR); in dw_mci_idmac_init()
554 mci_writel(host, IDINTEN64, SDMMC_IDMAC_INT_NI | in dw_mci_idmac_init()
558 mci_writel(host, DBADDRL, host->sg_dma & 0xffffffff); in dw_mci_idmac_init()
559 mci_writel(host, DBADDRU, (u64)host->sg_dma >> 32); in dw_mci_idmac_init()
563 mci_writel(host, IDSTS, IDMAC_INT_CLR); in dw_mci_idmac_init()
564 mci_writel(host, IDINTEN, SDMMC_IDMAC_INT_NI | in dw_mci_idmac_init()
568 mci_writel(host, DBADDR, host->sg_dma); in dw_mci_idmac_init()
574 static inline int dw_mci_prepare_desc64(struct dw_mci *host, in dw_mci_prepare_desc64() argument
583 desc_first = desc_last = desc = host->sg_cpu; in dw_mci_prepare_desc64()
639 dev_dbg(host->dev, "descriptor is still owned by IDMAC.\n"); in dw_mci_prepare_desc64()
640 memset(host->sg_cpu, 0, DESC_RING_BUF_SZ); in dw_mci_prepare_desc64()
641 dw_mci_idmac_init(host); in dw_mci_prepare_desc64()
646 static inline int dw_mci_prepare_desc32(struct dw_mci *host, in dw_mci_prepare_desc32() argument
655 desc_first = desc_last = desc = host->sg_cpu; in dw_mci_prepare_desc32()
713 dev_dbg(host->dev, "descriptor is still owned by IDMAC.\n"); in dw_mci_prepare_desc32()
714 memset(host->sg_cpu, 0, DESC_RING_BUF_SZ); in dw_mci_prepare_desc32()
715 dw_mci_idmac_init(host); in dw_mci_prepare_desc32()
719 static int dw_mci_idmac_start_dma(struct dw_mci *host, unsigned int sg_len) in dw_mci_idmac_start_dma() argument
724 if (host->dma_64bit_address == 1) in dw_mci_idmac_start_dma()
725 ret = dw_mci_prepare_desc64(host, host->data, sg_len); in dw_mci_idmac_start_dma()
727 ret = dw_mci_prepare_desc32(host, host->data, sg_len); in dw_mci_idmac_start_dma()
736 dw_mci_ctrl_reset(host, SDMMC_CTRL_DMA_RESET); in dw_mci_idmac_start_dma()
737 dw_mci_idmac_reset(host); in dw_mci_idmac_start_dma()
740 temp = mci_readl(host, CTRL); in dw_mci_idmac_start_dma()
742 mci_writel(host, CTRL, temp); in dw_mci_idmac_start_dma()
748 temp = mci_readl(host, BMOD); in dw_mci_idmac_start_dma()
750 mci_writel(host, BMOD, temp); in dw_mci_idmac_start_dma()
753 mci_writel(host, PLDMND, 1); in dw_mci_idmac_start_dma()
767 static void dw_mci_edmac_stop_dma(struct dw_mci *host) in dw_mci_edmac_stop_dma() argument
769 dmaengine_terminate_async(host->dms->ch); in dw_mci_edmac_stop_dma()
772 static int dw_mci_edmac_start_dma(struct dw_mci *host, in dw_mci_edmac_start_dma() argument
777 struct scatterlist *sgl = host->data->sg; in dw_mci_edmac_start_dma()
779 u32 sg_elems = host->data->sg_len; in dw_mci_edmac_start_dma()
781 u32 fifo_offset = host->fifo_reg - host->regs; in dw_mci_edmac_start_dma()
785 cfg.dst_addr = host->phy_regs + fifo_offset; in dw_mci_edmac_start_dma()
791 fifoth_val = mci_readl(host, FIFOTH); in dw_mci_edmac_start_dma()
795 if (host->data->flags & MMC_DATA_WRITE) in dw_mci_edmac_start_dma()
800 ret = dmaengine_slave_config(host->dms->ch, &cfg); in dw_mci_edmac_start_dma()
802 dev_err(host->dev, "Failed to config edmac.\n"); in dw_mci_edmac_start_dma()
806 desc = dmaengine_prep_slave_sg(host->dms->ch, sgl, in dw_mci_edmac_start_dma()
810 dev_err(host->dev, "Can't prepare slave sg.\n"); in dw_mci_edmac_start_dma()
816 desc->callback_param = (void *)host; in dw_mci_edmac_start_dma()
820 if (host->data->flags & MMC_DATA_WRITE) in dw_mci_edmac_start_dma()
821 dma_sync_sg_for_device(mmc_dev(host->slot->mmc), sgl, in dw_mci_edmac_start_dma()
824 dma_async_issue_pending(host->dms->ch); in dw_mci_edmac_start_dma()
829 static int dw_mci_edmac_init(struct dw_mci *host) in dw_mci_edmac_init() argument
832 host->dms = kzalloc(sizeof(struct dw_mci_dma_slave), GFP_KERNEL); in dw_mci_edmac_init()
833 if (!host->dms) in dw_mci_edmac_init()
836 host->dms->ch = dma_request_chan(host->dev, "rx-tx"); in dw_mci_edmac_init()
837 if (IS_ERR(host->dms->ch)) { in dw_mci_edmac_init()
838 int ret = PTR_ERR(host->dms->ch); in dw_mci_edmac_init()
840 dev_err(host->dev, "Failed to get external DMA channel.\n"); in dw_mci_edmac_init()
841 kfree(host->dms); in dw_mci_edmac_init()
842 host->dms = NULL; in dw_mci_edmac_init()
849 static void dw_mci_edmac_exit(struct dw_mci *host) in dw_mci_edmac_exit() argument
851 if (host->dms) { in dw_mci_edmac_exit()
852 if (host->dms->ch) { in dw_mci_edmac_exit()
853 dma_release_channel(host->dms->ch); in dw_mci_edmac_exit()
854 host->dms->ch = NULL; in dw_mci_edmac_exit()
856 kfree(host->dms); in dw_mci_edmac_exit()
857 host->dms = NULL; in dw_mci_edmac_exit()
870 static int dw_mci_pre_dma_transfer(struct dw_mci *host, in dw_mci_pre_dma_transfer() argument
896 sg_len = dma_map_sg(host->dev, in dw_mci_pre_dma_transfer()
914 if (!slot->host->use_dma || !data) in dw_mci_pre_req()
920 if (dw_mci_pre_dma_transfer(slot->host, mrq->data, in dw_mci_pre_req()
932 if (!slot->host->use_dma || !data) in dw_mci_post_req()
936 dma_unmap_sg(slot->host->dev, in dw_mci_post_req()
947 struct dw_mci *host = slot->host; in dw_mci_get_cd() local
970 present = (mci_readl(slot->host, CDETECT) & (1 << slot->id)) in dw_mci_get_cd()
973 spin_lock_bh(&host->lock); in dw_mci_get_cd()
979 spin_unlock_bh(&host->lock); in dw_mci_get_cd()
984 static void dw_mci_adjust_fifoth(struct dw_mci *host, struct mmc_data *data) in dw_mci_adjust_fifoth() argument
988 u32 fifo_width = 1 << host->data_shift; in dw_mci_adjust_fifoth()
994 if (!host->use_dma) in dw_mci_adjust_fifoth()
997 tx_wmark = (host->fifo_depth) / 2; in dw_mci_adjust_fifoth()
998 tx_wmark_invers = host->fifo_depth - tx_wmark; in dw_mci_adjust_fifoth()
1021 mci_writel(host, FIFOTH, fifoth_val); in dw_mci_adjust_fifoth()
1024 static void dw_mci_ctrl_thld(struct dw_mci *host, struct mmc_data *data) in dw_mci_ctrl_thld() argument
1035 if (host->verid < DW_MMC_240A || in dw_mci_ctrl_thld()
1036 (host->verid < DW_MMC_280A && data->flags & MMC_DATA_WRITE)) in dw_mci_ctrl_thld()
1044 host->timing != MMC_TIMING_MMC_HS400) in dw_mci_ctrl_thld()
1052 if (host->timing != MMC_TIMING_MMC_HS200 && in dw_mci_ctrl_thld()
1053 host->timing != MMC_TIMING_UHS_SDR104 && in dw_mci_ctrl_thld()
1054 host->timing != MMC_TIMING_MMC_HS400) in dw_mci_ctrl_thld()
1057 blksz_depth = blksz / (1 << host->data_shift); in dw_mci_ctrl_thld()
1058 fifo_depth = host->fifo_depth; in dw_mci_ctrl_thld()
1069 mci_writel(host, CDTHRCTL, SDMMC_SET_THLD(thld_size, enable)); in dw_mci_ctrl_thld()
1073 mci_writel(host, CDTHRCTL, 0); in dw_mci_ctrl_thld()
1076 static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data) in dw_mci_submit_data_dma() argument
1082 host->using_dma = 0; in dw_mci_submit_data_dma()
1085 if (!host->use_dma) in dw_mci_submit_data_dma()
1088 sg_len = dw_mci_pre_dma_transfer(host, data, COOKIE_MAPPED); in dw_mci_submit_data_dma()
1090 host->dma_ops->stop(host); in dw_mci_submit_data_dma()
1094 host->using_dma = 1; in dw_mci_submit_data_dma()
1096 if (host->use_dma == TRANS_MODE_IDMAC) in dw_mci_submit_data_dma()
1097 dev_vdbg(host->dev, in dw_mci_submit_data_dma()
1099 (unsigned long)host->sg_cpu, in dw_mci_submit_data_dma()
1100 (unsigned long)host->sg_dma, in dw_mci_submit_data_dma()
1108 if (host->prev_blksz != data->blksz) in dw_mci_submit_data_dma()
1109 dw_mci_adjust_fifoth(host, data); in dw_mci_submit_data_dma()
1112 temp = mci_readl(host, CTRL); in dw_mci_submit_data_dma()
1114 mci_writel(host, CTRL, temp); in dw_mci_submit_data_dma()
1117 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_submit_data_dma()
1118 temp = mci_readl(host, INTMASK); in dw_mci_submit_data_dma()
1120 mci_writel(host, INTMASK, temp); in dw_mci_submit_data_dma()
1121 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_submit_data_dma()
1123 if (host->dma_ops->start(host, sg_len)) { in dw_mci_submit_data_dma()
1124 host->dma_ops->stop(host); in dw_mci_submit_data_dma()
1126 dev_dbg(host->dev, in dw_mci_submit_data_dma()
1135 static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data) in dw_mci_submit_data() argument
1143 WARN_ON(host->data); in dw_mci_submit_data()
1144 host->sg = NULL; in dw_mci_submit_data()
1145 host->data = data; in dw_mci_submit_data()
1148 host->dir_status = DW_MCI_RECV_STATUS; in dw_mci_submit_data()
1150 host->dir_status = DW_MCI_SEND_STATUS; in dw_mci_submit_data()
1152 dw_mci_ctrl_thld(host, data); in dw_mci_submit_data()
1154 if (dw_mci_submit_data_dma(host, data)) { in dw_mci_submit_data()
1155 if (host->data->flags & MMC_DATA_READ) in dw_mci_submit_data()
1160 sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); in dw_mci_submit_data()
1161 host->sg = data->sg; in dw_mci_submit_data()
1162 host->part_buf_start = 0; in dw_mci_submit_data()
1163 host->part_buf_count = 0; in dw_mci_submit_data()
1165 mci_writel(host, RINTSTS, SDMMC_INT_TXDR | SDMMC_INT_RXDR); in dw_mci_submit_data()
1167 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_submit_data()
1168 temp = mci_readl(host, INTMASK); in dw_mci_submit_data()
1170 mci_writel(host, INTMASK, temp); in dw_mci_submit_data()
1171 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_submit_data()
1173 temp = mci_readl(host, CTRL); in dw_mci_submit_data()
1175 mci_writel(host, CTRL, temp); in dw_mci_submit_data()
1183 if (host->wm_aligned) in dw_mci_submit_data()
1184 dw_mci_adjust_fifoth(host, data); in dw_mci_submit_data()
1186 mci_writel(host, FIFOTH, host->fifoth_val); in dw_mci_submit_data()
1187 host->prev_blksz = 0; in dw_mci_submit_data()
1194 host->prev_blksz = data->blksz; in dw_mci_submit_data()
1200 struct dw_mci *host = slot->host; in dw_mci_setup_bus() local
1207 if (host->state == STATE_WAITING_CMD11_DONE) in dw_mci_setup_bus()
1213 mci_writel(host, CLKENA, 0); in dw_mci_setup_bus()
1215 } else if (clock != host->current_speed || force_clkinit) { in dw_mci_setup_bus()
1216 div = host->bus_hz / clock; in dw_mci_setup_bus()
1217 if (host->bus_hz % clock && host->bus_hz > clock) in dw_mci_setup_bus()
1224 div = (host->bus_hz != clock) ? DIV_ROUND_UP(div, 2) : 0; in dw_mci_setup_bus()
1233 slot->id, host->bus_hz, clock, in dw_mci_setup_bus()
1234 div ? ((host->bus_hz / div) >> 1) : in dw_mci_setup_bus()
1235 host->bus_hz, div); in dw_mci_setup_bus()
1247 mci_writel(host, CLKENA, 0); in dw_mci_setup_bus()
1248 mci_writel(host, CLKSRC, 0); in dw_mci_setup_bus()
1254 mci_writel(host, CLKDIV, div); in dw_mci_setup_bus()
1263 mci_writel(host, CLKENA, clk_en_a); in dw_mci_setup_bus()
1270 slot->mmc->actual_clock = div ? ((host->bus_hz / div) >> 1) : in dw_mci_setup_bus()
1271 host->bus_hz; in dw_mci_setup_bus()
1274 host->current_speed = clock; in dw_mci_setup_bus()
1277 mci_writel(host, CTYPE, (slot->ctype << slot->id)); in dw_mci_setup_bus()
1280 static void __dw_mci_start_request(struct dw_mci *host, in __dw_mci_start_request() argument
1290 host->mrq = mrq; in __dw_mci_start_request()
1292 host->pending_events = 0; in __dw_mci_start_request()
1293 host->completed_events = 0; in __dw_mci_start_request()
1294 host->cmd_status = 0; in __dw_mci_start_request()
1295 host->data_status = 0; in __dw_mci_start_request()
1296 host->dir_status = 0; in __dw_mci_start_request()
1300 mci_writel(host, TMOUT, 0xFFFFFFFF); in __dw_mci_start_request()
1301 mci_writel(host, BYTCNT, data->blksz*data->blocks); in __dw_mci_start_request()
1302 mci_writel(host, BLKSIZ, data->blksz); in __dw_mci_start_request()
1312 dw_mci_submit_data(host, data); in __dw_mci_start_request()
1316 dw_mci_start_command(host, cmd, cmdflags); in __dw_mci_start_request()
1331 spin_lock_irqsave(&host->irq_lock, irqflags); in __dw_mci_start_request()
1332 if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) in __dw_mci_start_request()
1333 mod_timer(&host->cmd11_timer, in __dw_mci_start_request()
1335 spin_unlock_irqrestore(&host->irq_lock, irqflags); in __dw_mci_start_request()
1338 host->stop_cmdr = dw_mci_prep_stop_abort(host, cmd); in __dw_mci_start_request()
1341 static void dw_mci_start_request(struct dw_mci *host, in dw_mci_start_request() argument
1348 __dw_mci_start_request(host, slot, cmd); in dw_mci_start_request()
1351 /* must be called with host->lock held */
1352 static void dw_mci_queue_request(struct dw_mci *host, struct dw_mci_slot *slot, in dw_mci_queue_request() argument
1356 host->state); in dw_mci_queue_request()
1360 if (host->state == STATE_WAITING_CMD11_DONE) { in dw_mci_queue_request()
1368 host->state = STATE_IDLE; in dw_mci_queue_request()
1371 if (host->state == STATE_IDLE) { in dw_mci_queue_request()
1372 host->state = STATE_SENDING_CMD; in dw_mci_queue_request()
1373 dw_mci_start_request(host, slot); in dw_mci_queue_request()
1375 list_add_tail(&slot->queue_node, &host->queue); in dw_mci_queue_request()
1382 struct dw_mci *host = slot->host; in dw_mci_request() local
1398 spin_lock_bh(&host->lock); in dw_mci_request()
1400 dw_mci_queue_request(host, slot, mrq); in dw_mci_request()
1402 spin_unlock_bh(&host->lock); in dw_mci_request()
1408 const struct dw_mci_drv_data *drv_data = slot->host->drv_data; in dw_mci_set_ios()
1424 regs = mci_readl(slot->host, UHS_REG); in dw_mci_set_ios()
1434 mci_writel(slot->host, UHS_REG, regs); in dw_mci_set_ios()
1435 slot->host->timing = ios->timing; in dw_mci_set_ios()
1444 drv_data->set_ios(slot->host, ios); in dw_mci_set_ios()
1452 dev_err(slot->host->dev, in dw_mci_set_ios()
1459 regs = mci_readl(slot->host, PWREN); in dw_mci_set_ios()
1461 mci_writel(slot->host, PWREN, regs); in dw_mci_set_ios()
1464 if (!slot->host->vqmmc_enabled) { in dw_mci_set_ios()
1468 dev_err(slot->host->dev, in dw_mci_set_ios()
1471 slot->host->vqmmc_enabled = true; in dw_mci_set_ios()
1475 slot->host->vqmmc_enabled = true; in dw_mci_set_ios()
1479 dw_mci_ctrl_reset(slot->host, in dw_mci_set_ios()
1494 if (!IS_ERR(mmc->supply.vqmmc) && slot->host->vqmmc_enabled) in dw_mci_set_ios()
1496 slot->host->vqmmc_enabled = false; in dw_mci_set_ios()
1498 regs = mci_readl(slot->host, PWREN); in dw_mci_set_ios()
1500 mci_writel(slot->host, PWREN, regs); in dw_mci_set_ios()
1506 if (slot->host->state == STATE_WAITING_CMD11_DONE && ios->clock != 0) in dw_mci_set_ios()
1507 slot->host->state = STATE_IDLE; in dw_mci_set_ios()
1519 status = mci_readl(slot->host, STATUS); in dw_mci_card_busy()
1527 struct dw_mci *host = slot->host; in dw_mci_switch_voltage() local
1528 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_switch_voltage()
1541 uhs = mci_readl(host, UHS_REG); in dw_mci_switch_voltage()
1556 mci_writel(host, UHS_REG, uhs); in dw_mci_switch_voltage()
1572 mci_readl(slot->host, WRTPRT) & (1 << slot->id) ? 1 : 0; in dw_mci_get_ro()
1583 struct dw_mci *host = slot->host; in dw_mci_hw_reset() local
1586 if (host->use_dma == TRANS_MODE_IDMAC) in dw_mci_hw_reset()
1587 dw_mci_idmac_reset(host); in dw_mci_hw_reset()
1589 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_DMA_RESET | in dw_mci_hw_reset()
1599 reset = mci_readl(host, RST_N); in dw_mci_hw_reset()
1601 mci_writel(host, RST_N, reset); in dw_mci_hw_reset()
1604 mci_writel(host, RST_N, reset); in dw_mci_hw_reset()
1611 struct dw_mci *host = slot->host; in dw_mci_init_card() local
1623 clk_en_a_old = mci_readl(host, CLKENA); in dw_mci_init_card()
1635 mci_writel(host, CLKENA, clk_en_a); in dw_mci_init_card()
1644 struct dw_mci *host = slot->host; in __dw_mci_enable_sdio_irq() local
1648 spin_lock_irqsave(&host->irq_lock, irqflags); in __dw_mci_enable_sdio_irq()
1651 int_mask = mci_readl(host, INTMASK); in __dw_mci_enable_sdio_irq()
1656 mci_writel(host, INTMASK, int_mask); in __dw_mci_enable_sdio_irq()
1658 spin_unlock_irqrestore(&host->irq_lock, irqflags); in __dw_mci_enable_sdio_irq()
1664 struct dw_mci *host = slot->host; in dw_mci_enable_sdio_irq() local
1670 pm_runtime_get_noresume(host->dev); in dw_mci_enable_sdio_irq()
1672 pm_runtime_put_noidle(host->dev); in dw_mci_enable_sdio_irq()
1685 struct dw_mci *host = slot->host; in dw_mci_execute_tuning() local
1686 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_execute_tuning()
1698 struct dw_mci *host = slot->host; in dw_mci_prepare_hs400_tuning() local
1699 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_prepare_hs400_tuning()
1702 return drv_data->prepare_hs400_tuning(host, ios); in dw_mci_prepare_hs400_tuning()
1707 static bool dw_mci_reset(struct dw_mci *host) in dw_mci_reset() argument
1717 if (host->sg) { in dw_mci_reset()
1718 sg_miter_stop(&host->sg_miter); in dw_mci_reset()
1719 host->sg = NULL; in dw_mci_reset()
1722 if (host->use_dma) in dw_mci_reset()
1725 if (dw_mci_ctrl_reset(host, flags)) { in dw_mci_reset()
1730 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_reset()
1732 if (!host->use_dma) { in dw_mci_reset()
1738 if (readl_poll_timeout_atomic(host->regs + SDMMC_STATUS, in dw_mci_reset()
1742 dev_err(host->dev, in dw_mci_reset()
1749 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_FIFO_RESET)) in dw_mci_reset()
1753 if (!(mci_readl(host, CTRL) & SDMMC_CTRL_RESET)) { in dw_mci_reset()
1754 dev_err(host->dev, in dw_mci_reset()
1761 if (host->use_dma == TRANS_MODE_IDMAC) in dw_mci_reset()
1763 dw_mci_idmac_init(host); in dw_mci_reset()
1769 mci_send_cmd(host->slot, SDMMC_CMD_UPD_CLK, 0); in dw_mci_reset()
1791 static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq) in dw_mci_request_end() argument
1792 __releases(&host->lock) in dw_mci_request_end()
1793 __acquires(&host->lock) in dw_mci_request_end()
1796 struct mmc_host *prev_mmc = host->slot->mmc; in dw_mci_request_end()
1798 WARN_ON(host->cmd || host->data); in dw_mci_request_end()
1800 host->slot->mrq = NULL; in dw_mci_request_end()
1801 host->mrq = NULL; in dw_mci_request_end()
1802 if (!list_empty(&host->queue)) { in dw_mci_request_end()
1803 slot = list_entry(host->queue.next, in dw_mci_request_end()
1806 dev_vdbg(host->dev, "list not empty: %s is next\n", in dw_mci_request_end()
1808 host->state = STATE_SENDING_CMD; in dw_mci_request_end()
1809 dw_mci_start_request(host, slot); in dw_mci_request_end()
1811 dev_vdbg(host->dev, "list empty\n"); in dw_mci_request_end()
1813 if (host->state == STATE_SENDING_CMD11) in dw_mci_request_end()
1814 host->state = STATE_WAITING_CMD11_DONE; in dw_mci_request_end()
1816 host->state = STATE_IDLE; in dw_mci_request_end()
1819 spin_unlock(&host->lock); in dw_mci_request_end()
1821 spin_lock(&host->lock); in dw_mci_request_end()
1824 static int dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd) in dw_mci_command_complete() argument
1826 u32 status = host->cmd_status; in dw_mci_command_complete()
1828 host->cmd_status = 0; in dw_mci_command_complete()
1833 cmd->resp[3] = mci_readl(host, RESP0); in dw_mci_command_complete()
1834 cmd->resp[2] = mci_readl(host, RESP1); in dw_mci_command_complete()
1835 cmd->resp[1] = mci_readl(host, RESP2); in dw_mci_command_complete()
1836 cmd->resp[0] = mci_readl(host, RESP3); in dw_mci_command_complete()
1838 cmd->resp[0] = mci_readl(host, RESP0); in dw_mci_command_complete()
1857 static int dw_mci_data_complete(struct dw_mci *host, struct mmc_data *data) in dw_mci_data_complete() argument
1859 u32 status = host->data_status; in dw_mci_data_complete()
1867 if (host->dir_status == in dw_mci_data_complete()
1876 } else if (host->dir_status == in dw_mci_data_complete()
1885 dev_dbg(host->dev, "data error, status 0x%08x\n", status); in dw_mci_data_complete()
1891 dw_mci_reset(host); in dw_mci_data_complete()
1900 static void dw_mci_set_drto(struct dw_mci *host) in dw_mci_set_drto() argument
1907 drto_clks = mci_readl(host, TMOUT) >> 8; in dw_mci_set_drto()
1908 drto_div = (mci_readl(host, CLKDIV) & 0xff) * 2; in dw_mci_set_drto()
1913 host->bus_hz); in dw_mci_set_drto()
1918 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_set_drto()
1919 if (!test_bit(EVENT_DATA_COMPLETE, &host->pending_events)) in dw_mci_set_drto()
1920 mod_timer(&host->dto_timer, in dw_mci_set_drto()
1922 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_set_drto()
1925 static bool dw_mci_clear_pending_cmd_complete(struct dw_mci *host) in dw_mci_clear_pending_cmd_complete() argument
1927 if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) in dw_mci_clear_pending_cmd_complete()
1937 WARN_ON(del_timer_sync(&host->cto_timer)); in dw_mci_clear_pending_cmd_complete()
1938 clear_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_clear_pending_cmd_complete()
1943 static bool dw_mci_clear_pending_data_complete(struct dw_mci *host) in dw_mci_clear_pending_data_complete() argument
1945 if (!test_bit(EVENT_DATA_COMPLETE, &host->pending_events)) in dw_mci_clear_pending_data_complete()
1949 WARN_ON(del_timer_sync(&host->dto_timer)); in dw_mci_clear_pending_data_complete()
1950 clear_bit(EVENT_DATA_COMPLETE, &host->pending_events); in dw_mci_clear_pending_data_complete()
1957 struct dw_mci *host = (struct dw_mci *)priv; in dw_mci_tasklet_func() local
1965 spin_lock(&host->lock); in dw_mci_tasklet_func()
1967 state = host->state; in dw_mci_tasklet_func()
1968 data = host->data; in dw_mci_tasklet_func()
1969 mrq = host->mrq; in dw_mci_tasklet_func()
1981 if (!dw_mci_clear_pending_cmd_complete(host)) in dw_mci_tasklet_func()
1984 cmd = host->cmd; in dw_mci_tasklet_func()
1985 host->cmd = NULL; in dw_mci_tasklet_func()
1986 set_bit(EVENT_CMD_COMPLETE, &host->completed_events); in dw_mci_tasklet_func()
1987 err = dw_mci_command_complete(host, cmd); in dw_mci_tasklet_func()
1989 __dw_mci_start_request(host, host->slot, in dw_mci_tasklet_func()
2021 dw_mci_stop_dma(host); in dw_mci_tasklet_func()
2022 send_stop_abort(host, data); in dw_mci_tasklet_func()
2028 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2045 &host->pending_events)) { in dw_mci_tasklet_func()
2046 dw_mci_stop_dma(host); in dw_mci_tasklet_func()
2047 if (!(host->data_status & (SDMMC_INT_DRTO | in dw_mci_tasklet_func()
2049 send_stop_abort(host, data); in dw_mci_tasklet_func()
2055 &host->pending_events)) { in dw_mci_tasklet_func()
2060 if (host->dir_status == DW_MCI_RECV_STATUS) in dw_mci_tasklet_func()
2061 dw_mci_set_drto(host); in dw_mci_tasklet_func()
2065 set_bit(EVENT_XFER_COMPLETE, &host->completed_events); in dw_mci_tasklet_func()
2081 &host->pending_events)) { in dw_mci_tasklet_func()
2082 dw_mci_stop_dma(host); in dw_mci_tasklet_func()
2083 if (!(host->data_status & (SDMMC_INT_DRTO | in dw_mci_tasklet_func()
2085 send_stop_abort(host, data); in dw_mci_tasklet_func()
2094 if (!dw_mci_clear_pending_data_complete(host)) { in dw_mci_tasklet_func()
2100 if (host->dir_status == DW_MCI_RECV_STATUS) in dw_mci_tasklet_func()
2101 dw_mci_set_drto(host); in dw_mci_tasklet_func()
2105 host->data = NULL; in dw_mci_tasklet_func()
2106 set_bit(EVENT_DATA_COMPLETE, &host->completed_events); in dw_mci_tasklet_func()
2107 err = dw_mci_data_complete(host, data); in dw_mci_tasklet_func()
2113 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2119 send_stop_abort(host, data); in dw_mci_tasklet_func()
2131 &host->pending_events)) { in dw_mci_tasklet_func()
2132 host->cmd = NULL; in dw_mci_tasklet_func()
2133 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2147 if (!dw_mci_clear_pending_cmd_complete(host)) in dw_mci_tasklet_func()
2152 dw_mci_reset(host); in dw_mci_tasklet_func()
2154 host->cmd = NULL; in dw_mci_tasklet_func()
2155 host->data = NULL; in dw_mci_tasklet_func()
2158 dw_mci_command_complete(host, mrq->stop); in dw_mci_tasklet_func()
2160 host->cmd_status = 0; in dw_mci_tasklet_func()
2162 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2167 &host->pending_events)) in dw_mci_tasklet_func()
2175 host->state = state; in dw_mci_tasklet_func()
2177 spin_unlock(&host->lock); in dw_mci_tasklet_func()
2182 static void dw_mci_set_part_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_set_part_bytes() argument
2184 memcpy((void *)&host->part_buf, buf, cnt); in dw_mci_set_part_bytes()
2185 host->part_buf_count = cnt; in dw_mci_set_part_bytes()
2189 static int dw_mci_push_part_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_part_bytes() argument
2191 cnt = min(cnt, (1 << host->data_shift) - host->part_buf_count); in dw_mci_push_part_bytes()
2192 memcpy((void *)&host->part_buf + host->part_buf_count, buf, cnt); in dw_mci_push_part_bytes()
2193 host->part_buf_count += cnt; in dw_mci_push_part_bytes()
2198 static int dw_mci_pull_part_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_part_bytes() argument
2200 cnt = min_t(int, cnt, host->part_buf_count); in dw_mci_pull_part_bytes()
2202 memcpy(buf, (void *)&host->part_buf + host->part_buf_start, in dw_mci_pull_part_bytes()
2204 host->part_buf_count -= cnt; in dw_mci_pull_part_bytes()
2205 host->part_buf_start += cnt; in dw_mci_pull_part_bytes()
2211 static void dw_mci_pull_final_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_final_bytes() argument
2213 memcpy(buf, &host->part_buf, cnt); in dw_mci_pull_final_bytes()
2214 host->part_buf_start = cnt; in dw_mci_pull_final_bytes()
2215 host->part_buf_count = (1 << host->data_shift) - cnt; in dw_mci_pull_final_bytes()
2218 static void dw_mci_push_data16(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_data16() argument
2220 struct mmc_data *data = host->data; in dw_mci_push_data16()
2224 if (unlikely(host->part_buf_count)) { in dw_mci_push_data16()
2225 int len = dw_mci_push_part_bytes(host, buf, cnt); in dw_mci_push_data16()
2229 if (host->part_buf_count == 2) { in dw_mci_push_data16()
2230 mci_fifo_writew(host->fifo_reg, host->part_buf16); in dw_mci_push_data16()
2231 host->part_buf_count = 0; in dw_mci_push_data16()
2247 mci_fifo_writew(host->fifo_reg, aligned_buf[i]); in dw_mci_push_data16()
2255 mci_fifo_writew(host->fifo_reg, *pdata++); in dw_mci_push_data16()
2260 dw_mci_set_part_bytes(host, buf, cnt); in dw_mci_push_data16()
2264 mci_fifo_writew(host->fifo_reg, host->part_buf16); in dw_mci_push_data16()
2268 static void dw_mci_pull_data16(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data16() argument
2280 aligned_buf[i] = mci_fifo_readw(host->fifo_reg); in dw_mci_pull_data16()
2292 *pdata++ = mci_fifo_readw(host->fifo_reg); in dw_mci_pull_data16()
2296 host->part_buf16 = mci_fifo_readw(host->fifo_reg); in dw_mci_pull_data16()
2297 dw_mci_pull_final_bytes(host, buf, cnt); in dw_mci_pull_data16()
2301 static void dw_mci_push_data32(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_data32() argument
2303 struct mmc_data *data = host->data; in dw_mci_push_data32()
2307 if (unlikely(host->part_buf_count)) { in dw_mci_push_data32()
2308 int len = dw_mci_push_part_bytes(host, buf, cnt); in dw_mci_push_data32()
2312 if (host->part_buf_count == 4) { in dw_mci_push_data32()
2313 mci_fifo_writel(host->fifo_reg, host->part_buf32); in dw_mci_push_data32()
2314 host->part_buf_count = 0; in dw_mci_push_data32()
2330 mci_fifo_writel(host->fifo_reg, aligned_buf[i]); in dw_mci_push_data32()
2338 mci_fifo_writel(host->fifo_reg, *pdata++); in dw_mci_push_data32()
2343 dw_mci_set_part_bytes(host, buf, cnt); in dw_mci_push_data32()
2347 mci_fifo_writel(host->fifo_reg, host->part_buf32); in dw_mci_push_data32()
2351 static void dw_mci_pull_data32(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data32() argument
2363 aligned_buf[i] = mci_fifo_readl(host->fifo_reg); in dw_mci_pull_data32()
2375 *pdata++ = mci_fifo_readl(host->fifo_reg); in dw_mci_pull_data32()
2379 host->part_buf32 = mci_fifo_readl(host->fifo_reg); in dw_mci_pull_data32()
2380 dw_mci_pull_final_bytes(host, buf, cnt); in dw_mci_pull_data32()
2384 static void dw_mci_push_data64(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_data64() argument
2386 struct mmc_data *data = host->data; in dw_mci_push_data64()
2390 if (unlikely(host->part_buf_count)) { in dw_mci_push_data64()
2391 int len = dw_mci_push_part_bytes(host, buf, cnt); in dw_mci_push_data64()
2396 if (host->part_buf_count == 8) { in dw_mci_push_data64()
2397 mci_fifo_writeq(host->fifo_reg, host->part_buf); in dw_mci_push_data64()
2398 host->part_buf_count = 0; in dw_mci_push_data64()
2414 mci_fifo_writeq(host->fifo_reg, aligned_buf[i]); in dw_mci_push_data64()
2422 mci_fifo_writeq(host->fifo_reg, *pdata++); in dw_mci_push_data64()
2427 dw_mci_set_part_bytes(host, buf, cnt); in dw_mci_push_data64()
2431 mci_fifo_writeq(host->fifo_reg, host->part_buf); in dw_mci_push_data64()
2435 static void dw_mci_pull_data64(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data64() argument
2447 aligned_buf[i] = mci_fifo_readq(host->fifo_reg); in dw_mci_pull_data64()
2460 *pdata++ = mci_fifo_readq(host->fifo_reg); in dw_mci_pull_data64()
2464 host->part_buf = mci_fifo_readq(host->fifo_reg); in dw_mci_pull_data64()
2465 dw_mci_pull_final_bytes(host, buf, cnt); in dw_mci_pull_data64()
2469 static void dw_mci_pull_data(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data() argument
2474 len = dw_mci_pull_part_bytes(host, buf, cnt); in dw_mci_pull_data()
2481 host->pull_data(host, buf, cnt); in dw_mci_pull_data()
2484 static void dw_mci_read_data_pio(struct dw_mci *host, bool dto) in dw_mci_read_data_pio() argument
2486 struct sg_mapping_iter *sg_miter = &host->sg_miter; in dw_mci_read_data_pio()
2489 struct mmc_data *data = host->data; in dw_mci_read_data_pio()
2490 int shift = host->data_shift; in dw_mci_read_data_pio()
2499 host->sg = sg_miter->piter.sg; in dw_mci_read_data_pio()
2505 fcnt = (SDMMC_GET_FCNT(mci_readl(host, STATUS)) in dw_mci_read_data_pio()
2506 << shift) + host->part_buf_count; in dw_mci_read_data_pio()
2510 dw_mci_pull_data(host, (void *)(buf + offset), len); in dw_mci_read_data_pio()
2517 status = mci_readl(host, MINTSTS); in dw_mci_read_data_pio()
2518 mci_writel(host, RINTSTS, SDMMC_INT_RXDR); in dw_mci_read_data_pio()
2521 (dto && SDMMC_GET_FCNT(mci_readl(host, STATUS)))); in dw_mci_read_data_pio()
2533 host->sg = NULL; in dw_mci_read_data_pio()
2535 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_read_data_pio()
2538 static void dw_mci_write_data_pio(struct dw_mci *host) in dw_mci_write_data_pio() argument
2540 struct sg_mapping_iter *sg_miter = &host->sg_miter; in dw_mci_write_data_pio()
2543 struct mmc_data *data = host->data; in dw_mci_write_data_pio()
2544 int shift = host->data_shift; in dw_mci_write_data_pio()
2547 unsigned int fifo_depth = host->fifo_depth; in dw_mci_write_data_pio()
2554 host->sg = sg_miter->piter.sg; in dw_mci_write_data_pio()
2561 SDMMC_GET_FCNT(mci_readl(host, STATUS))) in dw_mci_write_data_pio()
2562 << shift) - host->part_buf_count; in dw_mci_write_data_pio()
2566 host->push_data(host, (void *)(buf + offset), len); in dw_mci_write_data_pio()
2573 status = mci_readl(host, MINTSTS); in dw_mci_write_data_pio()
2574 mci_writel(host, RINTSTS, SDMMC_INT_TXDR); in dw_mci_write_data_pio()
2587 host->sg = NULL; in dw_mci_write_data_pio()
2589 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_write_data_pio()
2592 static void dw_mci_cmd_interrupt(struct dw_mci *host, u32 status) in dw_mci_cmd_interrupt() argument
2594 del_timer(&host->cto_timer); in dw_mci_cmd_interrupt()
2596 if (!host->cmd_status) in dw_mci_cmd_interrupt()
2597 host->cmd_status = status; in dw_mci_cmd_interrupt()
2601 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_cmd_interrupt()
2602 tasklet_schedule(&host->tasklet); in dw_mci_cmd_interrupt()
2605 static void dw_mci_handle_cd(struct dw_mci *host) in dw_mci_handle_cd() argument
2607 struct dw_mci_slot *slot = host->slot; in dw_mci_handle_cd()
2612 msecs_to_jiffies(host->pdata->detect_delay_ms)); in dw_mci_handle_cd()
2617 struct dw_mci *host = dev_id; in dw_mci_interrupt() local
2619 struct dw_mci_slot *slot = host->slot; in dw_mci_interrupt()
2622 pending = mci_readl(host, MINTSTS); /* read-only mask reg */ in dw_mci_interrupt()
2626 if ((host->state == STATE_SENDING_CMD11) && in dw_mci_interrupt()
2628 mci_writel(host, RINTSTS, SDMMC_INT_VOLT_SWITCH); in dw_mci_interrupt()
2635 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2636 dw_mci_cmd_interrupt(host, pending); in dw_mci_interrupt()
2637 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2639 del_timer(&host->cmd11_timer); in dw_mci_interrupt()
2643 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2645 del_timer(&host->cto_timer); in dw_mci_interrupt()
2646 mci_writel(host, RINTSTS, DW_MCI_CMD_ERROR_FLAGS); in dw_mci_interrupt()
2647 host->cmd_status = pending; in dw_mci_interrupt()
2649 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_interrupt()
2651 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2656 mci_writel(host, RINTSTS, DW_MCI_DATA_ERROR_FLAGS); in dw_mci_interrupt()
2657 host->data_status = pending; in dw_mci_interrupt()
2659 set_bit(EVENT_DATA_ERROR, &host->pending_events); in dw_mci_interrupt()
2660 tasklet_schedule(&host->tasklet); in dw_mci_interrupt()
2664 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2666 del_timer(&host->dto_timer); in dw_mci_interrupt()
2668 mci_writel(host, RINTSTS, SDMMC_INT_DATA_OVER); in dw_mci_interrupt()
2669 if (!host->data_status) in dw_mci_interrupt()
2670 host->data_status = pending; in dw_mci_interrupt()
2672 if (host->dir_status == DW_MCI_RECV_STATUS) { in dw_mci_interrupt()
2673 if (host->sg != NULL) in dw_mci_interrupt()
2674 dw_mci_read_data_pio(host, true); in dw_mci_interrupt()
2676 set_bit(EVENT_DATA_COMPLETE, &host->pending_events); in dw_mci_interrupt()
2677 tasklet_schedule(&host->tasklet); in dw_mci_interrupt()
2679 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2683 mci_writel(host, RINTSTS, SDMMC_INT_RXDR); in dw_mci_interrupt()
2684 if (host->dir_status == DW_MCI_RECV_STATUS && host->sg) in dw_mci_interrupt()
2685 dw_mci_read_data_pio(host, false); in dw_mci_interrupt()
2689 mci_writel(host, RINTSTS, SDMMC_INT_TXDR); in dw_mci_interrupt()
2690 if (host->dir_status == DW_MCI_SEND_STATUS && host->sg) in dw_mci_interrupt()
2691 dw_mci_write_data_pio(host); in dw_mci_interrupt()
2695 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2697 mci_writel(host, RINTSTS, SDMMC_INT_CMD_DONE); in dw_mci_interrupt()
2698 dw_mci_cmd_interrupt(host, pending); in dw_mci_interrupt()
2700 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2704 mci_writel(host, RINTSTS, SDMMC_INT_CD); in dw_mci_interrupt()
2705 dw_mci_handle_cd(host); in dw_mci_interrupt()
2709 mci_writel(host, RINTSTS, in dw_mci_interrupt()
2717 if (host->use_dma != TRANS_MODE_IDMAC) in dw_mci_interrupt()
2721 if (host->dma_64bit_address == 1) { in dw_mci_interrupt()
2722 pending = mci_readl(host, IDSTS64); in dw_mci_interrupt()
2724 mci_writel(host, IDSTS64, SDMMC_IDMAC_INT_TI | in dw_mci_interrupt()
2726 mci_writel(host, IDSTS64, SDMMC_IDMAC_INT_NI); in dw_mci_interrupt()
2727 if (!test_bit(EVENT_DATA_ERROR, &host->pending_events)) in dw_mci_interrupt()
2728 host->dma_ops->complete((void *)host); in dw_mci_interrupt()
2731 pending = mci_readl(host, IDSTS); in dw_mci_interrupt()
2733 mci_writel(host, IDSTS, SDMMC_IDMAC_INT_TI | in dw_mci_interrupt()
2735 mci_writel(host, IDSTS, SDMMC_IDMAC_INT_NI); in dw_mci_interrupt()
2736 if (!test_bit(EVENT_DATA_ERROR, &host->pending_events)) in dw_mci_interrupt()
2737 host->dma_ops->complete((void *)host); in dw_mci_interrupt()
2746 struct dw_mci *host = slot->host; in dw_mci_init_slot_caps() local
2747 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_init_slot_caps()
2751 if (host->pdata->caps) in dw_mci_init_slot_caps()
2752 mmc->caps = host->pdata->caps; in dw_mci_init_slot_caps()
2754 if (host->pdata->pm_caps) in dw_mci_init_slot_caps()
2755 mmc->pm_caps = host->pdata->pm_caps; in dw_mci_init_slot_caps()
2757 if (host->dev->of_node) { in dw_mci_init_slot_caps()
2758 ctrl_id = of_alias_get_id(host->dev->of_node, "mshc"); in dw_mci_init_slot_caps()
2762 ctrl_id = to_platform_device(host->dev)->id; in dw_mci_init_slot_caps()
2767 dev_err(host->dev, "invalid controller id %d\n", in dw_mci_init_slot_caps()
2774 if (host->pdata->caps2) in dw_mci_init_slot_caps()
2775 mmc->caps2 = host->pdata->caps2; in dw_mci_init_slot_caps()
2788 static int dw_mci_init_slot(struct dw_mci *host) in dw_mci_init_slot() argument
2794 mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), host->dev); in dw_mci_init_slot()
2800 slot->sdio_id = host->sdio_id0 + slot->id; in dw_mci_init_slot()
2802 slot->host = host; in dw_mci_init_slot()
2803 host->slot = slot; in dw_mci_init_slot()
2824 if (host->use_dma == TRANS_MODE_IDMAC) { in dw_mci_init_slot()
2825 mmc->max_segs = host->ring_size; in dw_mci_init_slot()
2828 mmc->max_req_size = mmc->max_seg_size * host->ring_size; in dw_mci_init_slot()
2830 } else if (host->use_dma == TRANS_MODE_EDMAC) { in dw_mci_init_slot()
2868 slot->host->slot = NULL; in dw_mci_cleanup_slot()
2872 static void dw_mci_init_dma(struct dw_mci *host) in dw_mci_init_dma() argument
2875 struct device *dev = host->dev; in dw_mci_init_dma()
2888 host->use_dma = SDMMC_GET_TRANS_MODE(mci_readl(host, HCON)); in dw_mci_init_dma()
2889 if (host->use_dma == DMA_INTERFACE_IDMA) { in dw_mci_init_dma()
2890 host->use_dma = TRANS_MODE_IDMAC; in dw_mci_init_dma()
2891 } else if (host->use_dma == DMA_INTERFACE_DWDMA || in dw_mci_init_dma()
2892 host->use_dma == DMA_INTERFACE_GDMA) { in dw_mci_init_dma()
2893 host->use_dma = TRANS_MODE_EDMAC; in dw_mci_init_dma()
2899 if (host->use_dma == TRANS_MODE_IDMAC) { in dw_mci_init_dma()
2904 addr_config = SDMMC_GET_ADDR_CONFIG(mci_readl(host, HCON)); in dw_mci_init_dma()
2907 /* host supports IDMAC in 64-bit address mode */ in dw_mci_init_dma()
2908 host->dma_64bit_address = 1; in dw_mci_init_dma()
2909 dev_info(host->dev, in dw_mci_init_dma()
2911 if (!dma_set_mask(host->dev, DMA_BIT_MASK(64))) in dw_mci_init_dma()
2912 dma_set_coherent_mask(host->dev, in dw_mci_init_dma()
2915 /* host supports IDMAC in 32-bit address mode */ in dw_mci_init_dma()
2916 host->dma_64bit_address = 0; in dw_mci_init_dma()
2917 dev_info(host->dev, in dw_mci_init_dma()
2922 host->sg_cpu = dmam_alloc_coherent(host->dev, in dw_mci_init_dma()
2924 &host->sg_dma, GFP_KERNEL); in dw_mci_init_dma()
2925 if (!host->sg_cpu) { in dw_mci_init_dma()
2926 dev_err(host->dev, in dw_mci_init_dma()
2932 host->dma_ops = &dw_mci_idmac_ops; in dw_mci_init_dma()
2933 dev_info(host->dev, "Using internal DMA controller.\n"); in dw_mci_init_dma()
2941 host->dma_ops = &dw_mci_edmac_ops; in dw_mci_init_dma()
2942 dev_info(host->dev, "Using external DMA controller.\n"); in dw_mci_init_dma()
2945 if (host->dma_ops->init && host->dma_ops->start && in dw_mci_init_dma()
2946 host->dma_ops->stop && host->dma_ops->cleanup) { in dw_mci_init_dma()
2947 if (host->dma_ops->init(host)) { in dw_mci_init_dma()
2948 dev_err(host->dev, "%s: Unable to initialize DMA Controller.\n", in dw_mci_init_dma()
2953 dev_err(host->dev, "DMA initialization not found.\n"); in dw_mci_init_dma()
2960 dev_info(host->dev, "Using PIO mode.\n"); in dw_mci_init_dma()
2961 host->use_dma = TRANS_MODE_PIO; in dw_mci_init_dma()
2966 struct dw_mci *host = from_timer(host, t, cmd11_timer); in dw_mci_cmd11_timer() local
2968 if (host->state != STATE_SENDING_CMD11) { in dw_mci_cmd11_timer()
2969 dev_warn(host->dev, "Unexpected CMD11 timeout\n"); in dw_mci_cmd11_timer()
2973 host->cmd_status = SDMMC_INT_RTO; in dw_mci_cmd11_timer()
2974 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_cmd11_timer()
2975 tasklet_schedule(&host->tasklet); in dw_mci_cmd11_timer()
2980 struct dw_mci *host = from_timer(host, t, cto_timer); in dw_mci_cto_timer() local
2984 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_cto_timer()
2994 pending = mci_readl(host, MINTSTS); /* read-only mask reg */ in dw_mci_cto_timer()
2997 dev_warn(host->dev, "Unexpected interrupt latency\n"); in dw_mci_cto_timer()
3000 if (test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) { in dw_mci_cto_timer()
3002 dev_warn(host->dev, "CTO timeout when already completed\n"); in dw_mci_cto_timer()
3010 switch (host->state) { in dw_mci_cto_timer()
3019 host->cmd_status = SDMMC_INT_RTO; in dw_mci_cto_timer()
3020 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_cto_timer()
3021 tasklet_schedule(&host->tasklet); in dw_mci_cto_timer()
3024 dev_warn(host->dev, "Unexpected command timeout, state %d\n", in dw_mci_cto_timer()
3025 host->state); in dw_mci_cto_timer()
3030 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_cto_timer()
3035 struct dw_mci *host = from_timer(host, t, dto_timer); in dw_mci_dto_timer() local
3039 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_dto_timer()
3045 pending = mci_readl(host, MINTSTS); /* read-only mask reg */ in dw_mci_dto_timer()
3048 dev_warn(host->dev, "Unexpected data interrupt latency\n"); in dw_mci_dto_timer()
3051 if (test_bit(EVENT_DATA_COMPLETE, &host->pending_events)) { in dw_mci_dto_timer()
3053 dev_warn(host->dev, "DTO timeout when already completed\n"); in dw_mci_dto_timer()
3061 switch (host->state) { in dw_mci_dto_timer()
3069 host->data_status = SDMMC_INT_DRTO; in dw_mci_dto_timer()
3070 set_bit(EVENT_DATA_ERROR, &host->pending_events); in dw_mci_dto_timer()
3071 set_bit(EVENT_DATA_COMPLETE, &host->pending_events); in dw_mci_dto_timer()
3072 tasklet_schedule(&host->tasklet); in dw_mci_dto_timer()
3075 dev_warn(host->dev, "Unexpected data timeout, state %d\n", in dw_mci_dto_timer()
3076 host->state); in dw_mci_dto_timer()
3081 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_dto_timer()
3085 static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) in dw_mci_parse_dt() argument
3088 struct device *dev = host->dev; in dw_mci_parse_dt()
3089 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_parse_dt()
3111 device_property_read_u32(dev, "data-addr", &host->data_addr_override); in dw_mci_parse_dt()
3114 host->wm_aligned = true; in dw_mci_parse_dt()
3120 ret = drv_data->parse_dt(host); in dw_mci_parse_dt()
3129 static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) in dw_mci_parse_dt() argument
3135 static void dw_mci_enable_cd(struct dw_mci *host) in dw_mci_enable_cd() argument
3144 if (host->slot->mmc->caps & MMC_CAP_NEEDS_POLL) in dw_mci_enable_cd()
3147 if (mmc_gpio_get_cd(host->slot->mmc) < 0) { in dw_mci_enable_cd()
3148 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_enable_cd()
3149 temp = mci_readl(host, INTMASK); in dw_mci_enable_cd()
3151 mci_writel(host, INTMASK, temp); in dw_mci_enable_cd()
3152 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_enable_cd()
3156 int dw_mci_probe(struct dw_mci *host) in dw_mci_probe() argument
3158 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_probe()
3162 if (!host->pdata) { in dw_mci_probe()
3163 host->pdata = dw_mci_parse_dt(host); in dw_mci_probe()
3164 if (IS_ERR(host->pdata)) in dw_mci_probe()
3165 return dev_err_probe(host->dev, PTR_ERR(host->pdata), in dw_mci_probe()
3169 host->biu_clk = devm_clk_get(host->dev, "biu"); in dw_mci_probe()
3170 if (IS_ERR(host->biu_clk)) { in dw_mci_probe()
3171 dev_dbg(host->dev, "biu clock not available\n"); in dw_mci_probe()
3173 ret = clk_prepare_enable(host->biu_clk); in dw_mci_probe()
3175 dev_err(host->dev, "failed to enable biu clock\n"); in dw_mci_probe()
3180 host->ciu_clk = devm_clk_get(host->dev, "ciu"); in dw_mci_probe()
3181 if (IS_ERR(host->ciu_clk)) { in dw_mci_probe()
3182 dev_dbg(host->dev, "ciu clock not available\n"); in dw_mci_probe()
3183 host->bus_hz = host->pdata->bus_hz; in dw_mci_probe()
3185 ret = clk_prepare_enable(host->ciu_clk); in dw_mci_probe()
3187 dev_err(host->dev, "failed to enable ciu clock\n"); in dw_mci_probe()
3191 if (host->pdata->bus_hz) { in dw_mci_probe()
3192 ret = clk_set_rate(host->ciu_clk, host->pdata->bus_hz); in dw_mci_probe()
3194 dev_warn(host->dev, in dw_mci_probe()
3196 host->pdata->bus_hz); in dw_mci_probe()
3198 host->bus_hz = clk_get_rate(host->ciu_clk); in dw_mci_probe()
3201 if (!host->bus_hz) { in dw_mci_probe()
3202 dev_err(host->dev, in dw_mci_probe()
3208 if (!IS_ERR(host->pdata->rstc)) { in dw_mci_probe()
3209 reset_control_assert(host->pdata->rstc); in dw_mci_probe()
3211 reset_control_deassert(host->pdata->rstc); in dw_mci_probe()
3215 ret = drv_data->init(host); in dw_mci_probe()
3217 dev_err(host->dev, in dw_mci_probe()
3223 timer_setup(&host->cmd11_timer, dw_mci_cmd11_timer, 0); in dw_mci_probe()
3224 timer_setup(&host->cto_timer, dw_mci_cto_timer, 0); in dw_mci_probe()
3225 timer_setup(&host->dto_timer, dw_mci_dto_timer, 0); in dw_mci_probe()
3227 spin_lock_init(&host->lock); in dw_mci_probe()
3228 spin_lock_init(&host->irq_lock); in dw_mci_probe()
3229 INIT_LIST_HEAD(&host->queue); in dw_mci_probe()
3232 * Get the host data width - this assumes that HCON has been set with in dw_mci_probe()
3235 i = SDMMC_GET_HDATA_WIDTH(mci_readl(host, HCON)); in dw_mci_probe()
3237 host->push_data = dw_mci_push_data16; in dw_mci_probe()
3238 host->pull_data = dw_mci_pull_data16; in dw_mci_probe()
3240 host->data_shift = 1; in dw_mci_probe()
3242 host->push_data = dw_mci_push_data64; in dw_mci_probe()
3243 host->pull_data = dw_mci_pull_data64; in dw_mci_probe()
3245 host->data_shift = 3; in dw_mci_probe()
3249 "HCON reports a reserved host data width!\n" in dw_mci_probe()
3251 host->push_data = dw_mci_push_data32; in dw_mci_probe()
3252 host->pull_data = dw_mci_pull_data32; in dw_mci_probe()
3254 host->data_shift = 2; in dw_mci_probe()
3258 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_ALL_RESET_FLAGS)) { in dw_mci_probe()
3263 host->dma_ops = host->pdata->dma_ops; in dw_mci_probe()
3264 dw_mci_init_dma(host); in dw_mci_probe()
3266 /* Clear the interrupts for the host controller */ in dw_mci_probe()
3267 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_probe()
3268 mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */ in dw_mci_probe()
3271 mci_writel(host, TMOUT, 0xFFFFFFFF); in dw_mci_probe()
3277 if (!host->pdata->fifo_depth) { in dw_mci_probe()
3284 fifo_size = mci_readl(host, FIFOTH); in dw_mci_probe()
3287 fifo_size = host->pdata->fifo_depth; in dw_mci_probe()
3289 host->fifo_depth = fifo_size; in dw_mci_probe()
3290 host->fifoth_val = in dw_mci_probe()
3292 mci_writel(host, FIFOTH, host->fifoth_val); in dw_mci_probe()
3295 mci_writel(host, CLKENA, 0); in dw_mci_probe()
3296 mci_writel(host, CLKSRC, 0); in dw_mci_probe()
3302 host->verid = SDMMC_GET_VERID(mci_readl(host, VERID)); in dw_mci_probe()
3303 dev_info(host->dev, "Version ID is %04x\n", host->verid); in dw_mci_probe()
3305 if (host->data_addr_override) in dw_mci_probe()
3306 host->fifo_reg = host->regs + host->data_addr_override; in dw_mci_probe()
3307 else if (host->verid < DW_MMC_240A) in dw_mci_probe()
3308 host->fifo_reg = host->regs + DATA_OFFSET; in dw_mci_probe()
3310 host->fifo_reg = host->regs + DATA_240A_OFFSET; in dw_mci_probe()
3312 tasklet_init(&host->tasklet, dw_mci_tasklet_func, (unsigned long)host); in dw_mci_probe()
3313 ret = devm_request_irq(host->dev, host->irq, dw_mci_interrupt, in dw_mci_probe()
3314 host->irq_flags, "dw-mci", host); in dw_mci_probe()
3322 mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | in dw_mci_probe()
3326 mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); in dw_mci_probe()
3328 dev_info(host->dev, in dw_mci_probe()
3329 "DW MMC controller at irq %d,%d bit host data width,%u deep fifo\n", in dw_mci_probe()
3330 host->irq, width, fifo_size); in dw_mci_probe()
3333 ret = dw_mci_init_slot(host); in dw_mci_probe()
3335 dev_dbg(host->dev, "slot %d init failed\n", i); in dw_mci_probe()
3340 dw_mci_enable_cd(host); in dw_mci_probe()
3345 if (host->use_dma && host->dma_ops->exit) in dw_mci_probe()
3346 host->dma_ops->exit(host); in dw_mci_probe()
3348 if (!IS_ERR(host->pdata->rstc)) in dw_mci_probe()
3349 reset_control_assert(host->pdata->rstc); in dw_mci_probe()
3352 clk_disable_unprepare(host->ciu_clk); in dw_mci_probe()
3355 clk_disable_unprepare(host->biu_clk); in dw_mci_probe()
3361 void dw_mci_remove(struct dw_mci *host) in dw_mci_remove() argument
3363 dev_dbg(host->dev, "remove slot\n"); in dw_mci_remove()
3364 if (host->slot) in dw_mci_remove()
3365 dw_mci_cleanup_slot(host->slot); in dw_mci_remove()
3367 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_remove()
3368 mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */ in dw_mci_remove()
3371 mci_writel(host, CLKENA, 0); in dw_mci_remove()
3372 mci_writel(host, CLKSRC, 0); in dw_mci_remove()
3374 if (host->use_dma && host->dma_ops->exit) in dw_mci_remove()
3375 host->dma_ops->exit(host); in dw_mci_remove()
3377 if (!IS_ERR(host->pdata->rstc)) in dw_mci_remove()
3378 reset_control_assert(host->pdata->rstc); in dw_mci_remove()
3380 clk_disable_unprepare(host->ciu_clk); in dw_mci_remove()
3381 clk_disable_unprepare(host->biu_clk); in dw_mci_remove()
3390 struct dw_mci *host = dev_get_drvdata(dev); in dw_mci_runtime_suspend() local
3392 if (host->use_dma && host->dma_ops->exit) in dw_mci_runtime_suspend()
3393 host->dma_ops->exit(host); in dw_mci_runtime_suspend()
3395 clk_disable_unprepare(host->ciu_clk); in dw_mci_runtime_suspend()
3397 if (host->slot && in dw_mci_runtime_suspend()
3398 (mmc_can_gpio_cd(host->slot->mmc) || in dw_mci_runtime_suspend()
3399 !mmc_card_is_removable(host->slot->mmc))) in dw_mci_runtime_suspend()
3400 clk_disable_unprepare(host->biu_clk); in dw_mci_runtime_suspend()
3409 struct dw_mci *host = dev_get_drvdata(dev); in dw_mci_runtime_resume() local
3411 if (host->slot && in dw_mci_runtime_resume()
3412 (mmc_can_gpio_cd(host->slot->mmc) || in dw_mci_runtime_resume()
3413 !mmc_card_is_removable(host->slot->mmc))) { in dw_mci_runtime_resume()
3414 ret = clk_prepare_enable(host->biu_clk); in dw_mci_runtime_resume()
3419 ret = clk_prepare_enable(host->ciu_clk); in dw_mci_runtime_resume()
3423 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_ALL_RESET_FLAGS)) { in dw_mci_runtime_resume()
3424 clk_disable_unprepare(host->ciu_clk); in dw_mci_runtime_resume()
3429 if (host->use_dma && host->dma_ops->init) in dw_mci_runtime_resume()
3430 host->dma_ops->init(host); in dw_mci_runtime_resume()
3436 mci_writel(host, FIFOTH, host->fifoth_val); in dw_mci_runtime_resume()
3437 host->prev_blksz = 0; in dw_mci_runtime_resume()
3440 mci_writel(host, TMOUT, 0xFFFFFFFF); in dw_mci_runtime_resume()
3442 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_runtime_resume()
3443 mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | in dw_mci_runtime_resume()
3446 mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); in dw_mci_runtime_resume()
3449 if (host->slot->mmc->pm_flags & MMC_PM_KEEP_POWER) in dw_mci_runtime_resume()
3450 dw_mci_set_ios(host->slot->mmc, &host->slot->mmc->ios); in dw_mci_runtime_resume()
3453 dw_mci_setup_bus(host->slot, true); in dw_mci_runtime_resume()
3456 if (sdio_irq_claimed(host->slot->mmc)) in dw_mci_runtime_resume()
3457 __dw_mci_enable_sdio_irq(host->slot, 1); in dw_mci_runtime_resume()
3460 dw_mci_enable_cd(host); in dw_mci_runtime_resume()
3465 if (host->slot && in dw_mci_runtime_resume()
3466 (mmc_can_gpio_cd(host->slot->mmc) || in dw_mci_runtime_resume()
3467 !mmc_card_is_removable(host->slot->mmc))) in dw_mci_runtime_resume()
3468 clk_disable_unprepare(host->biu_clk); in dw_mci_runtime_resume()