Lines Matching full:host
33 #include <linux/mmc/host.h>
120 spin_lock_bh(&slot->host->lock); in dw_mci_req_show()
146 spin_unlock_bh(&slot->host->lock); in dw_mci_req_show()
154 struct dw_mci *host = s->private; in dw_mci_regs_show() local
156 pm_runtime_get_sync(host->dev); in dw_mci_regs_show()
158 seq_printf(s, "STATUS:\t0x%08x\n", mci_readl(host, STATUS)); in dw_mci_regs_show()
159 seq_printf(s, "RINTSTS:\t0x%08x\n", mci_readl(host, RINTSTS)); in dw_mci_regs_show()
160 seq_printf(s, "CMD:\t0x%08x\n", mci_readl(host, CMD)); in dw_mci_regs_show()
161 seq_printf(s, "CTRL:\t0x%08x\n", mci_readl(host, CTRL)); in dw_mci_regs_show()
162 seq_printf(s, "INTMASK:\t0x%08x\n", mci_readl(host, INTMASK)); in dw_mci_regs_show()
163 seq_printf(s, "CLKENA:\t0x%08x\n", mci_readl(host, CLKENA)); in dw_mci_regs_show()
165 pm_runtime_put_autosuspend(host->dev); in dw_mci_regs_show()
174 struct dw_mci *host = slot->host; in dw_mci_init_debugfs() local
182 node = debugfs_create_file("regs", S_IRUSR, root, host, in dw_mci_init_debugfs()
192 node = debugfs_create_u32("state", S_IRUSR, root, (u32 *)&host->state); in dw_mci_init_debugfs()
197 (u32 *)&host->pending_events); in dw_mci_init_debugfs()
202 (u32 *)&host->completed_events); in dw_mci_init_debugfs()
213 static bool dw_mci_ctrl_reset(struct dw_mci *host, u32 reset) in dw_mci_ctrl_reset() argument
217 ctrl = mci_readl(host, CTRL); in dw_mci_ctrl_reset()
219 mci_writel(host, CTRL, ctrl); in dw_mci_ctrl_reset()
222 if (readl_poll_timeout_atomic(host->regs + SDMMC_CTRL, ctrl, in dw_mci_ctrl_reset()
225 dev_err(host->dev, in dw_mci_ctrl_reset()
234 static void dw_mci_wait_while_busy(struct dw_mci *host, u32 cmd_flags) in dw_mci_wait_while_busy() argument
248 if (readl_poll_timeout_atomic(host->regs + SDMMC_STATUS, in dw_mci_wait_while_busy()
252 dev_err(host->dev, "Busy; trying anyway\n"); in dw_mci_wait_while_busy()
258 struct dw_mci *host = slot->host; in mci_send_cmd() local
261 mci_writel(host, CMDARG, arg); in mci_send_cmd()
263 dw_mci_wait_while_busy(host, cmd); in mci_send_cmd()
264 mci_writel(host, CMD, SDMMC_CMD_START | cmd); in mci_send_cmd()
266 if (readl_poll_timeout_atomic(host->regs + SDMMC_CMD, cmd_status, in mci_send_cmd()
277 struct dw_mci *host = slot->host; in dw_mci_prepare_command() local
299 WARN_ON(slot->host->state != STATE_SENDING_CMD); in dw_mci_prepare_command()
300 slot->host->state = STATE_SENDING_CMD11; in dw_mci_prepare_command()
313 clk_en_a = mci_readl(host, CLKENA); in dw_mci_prepare_command()
315 mci_writel(host, CLKENA, clk_en_a); in dw_mci_prepare_command()
342 static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd) in dw_mci_prep_stop_abort() argument
350 stop = &host->stop_abort; in dw_mci_prep_stop_abort()
375 if (!test_bit(DW_MMC_CARD_NO_USE_HOLD, &host->slot->flags)) in dw_mci_prep_stop_abort()
381 static inline void dw_mci_set_cto(struct dw_mci *host) in dw_mci_set_cto() argument
388 cto_clks = mci_readl(host, TMOUT) & 0xff; in dw_mci_set_cto()
389 cto_div = (mci_readl(host, CLKDIV) & 0xff) * 2; in dw_mci_set_cto()
394 host->bus_hz); in dw_mci_set_cto()
412 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_set_cto()
413 if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) in dw_mci_set_cto()
414 mod_timer(&host->cto_timer, in dw_mci_set_cto()
416 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_set_cto()
419 static void dw_mci_start_command(struct dw_mci *host, in dw_mci_start_command() argument
422 host->cmd = cmd; in dw_mci_start_command()
423 dev_vdbg(host->dev, in dw_mci_start_command()
427 mci_writel(host, CMDARG, cmd->arg); in dw_mci_start_command()
429 dw_mci_wait_while_busy(host, cmd_flags); in dw_mci_start_command()
431 mci_writel(host, CMD, cmd_flags | SDMMC_CMD_START); in dw_mci_start_command()
435 dw_mci_set_cto(host); in dw_mci_start_command()
438 static inline void send_stop_abort(struct dw_mci *host, struct mmc_data *data) in send_stop_abort() argument
440 struct mmc_command *stop = &host->stop_abort; in send_stop_abort()
442 dw_mci_start_command(host, stop, host->stop_cmdr); in send_stop_abort()
446 static void dw_mci_stop_dma(struct dw_mci *host) in dw_mci_stop_dma() argument
448 if (host->using_dma) { in dw_mci_stop_dma()
449 host->dma_ops->stop(host); in dw_mci_stop_dma()
450 host->dma_ops->cleanup(host); in dw_mci_stop_dma()
454 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_stop_dma()
457 static void dw_mci_dma_cleanup(struct dw_mci *host) in dw_mci_dma_cleanup() argument
459 struct mmc_data *data = host->data; in dw_mci_dma_cleanup()
462 dma_unmap_sg(host->dev, in dw_mci_dma_cleanup()
470 static void dw_mci_idmac_reset(struct dw_mci *host) in dw_mci_idmac_reset() argument
472 u32 bmod = mci_readl(host, BMOD); in dw_mci_idmac_reset()
475 mci_writel(host, BMOD, bmod); in dw_mci_idmac_reset()
478 static void dw_mci_idmac_stop_dma(struct dw_mci *host) in dw_mci_idmac_stop_dma() argument
483 temp = mci_readl(host, CTRL); in dw_mci_idmac_stop_dma()
486 mci_writel(host, CTRL, temp); in dw_mci_idmac_stop_dma()
489 temp = mci_readl(host, BMOD); in dw_mci_idmac_stop_dma()
492 mci_writel(host, BMOD, temp); in dw_mci_idmac_stop_dma()
497 struct dw_mci *host = arg; in dw_mci_dmac_complete_dma() local
498 struct mmc_data *data = host->data; in dw_mci_dmac_complete_dma()
500 dev_vdbg(host->dev, "DMA complete\n"); in dw_mci_dmac_complete_dma()
502 if ((host->use_dma == TRANS_MODE_EDMAC) && in dw_mci_dmac_complete_dma()
505 dma_sync_sg_for_cpu(mmc_dev(host->slot->mmc), in dw_mci_dmac_complete_dma()
510 host->dma_ops->cleanup(host); in dw_mci_dmac_complete_dma()
517 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_dmac_complete_dma()
518 tasklet_schedule(&host->tasklet); in dw_mci_dmac_complete_dma()
522 static int dw_mci_idmac_init(struct dw_mci *host) in dw_mci_idmac_init() argument
526 if (host->dma_64bit_address == 1) { in dw_mci_idmac_init()
529 host->ring_size = in dw_mci_idmac_init()
533 for (i = 0, p = host->sg_cpu; i < host->ring_size - 1; in dw_mci_idmac_init()
535 p->des6 = (host->sg_dma + in dw_mci_idmac_init()
539 p->des7 = (u64)(host->sg_dma + in dw_mci_idmac_init()
550 p->des6 = host->sg_dma & 0xffffffff; in dw_mci_idmac_init()
551 p->des7 = (u64)host->sg_dma >> 32; in dw_mci_idmac_init()
557 host->ring_size = in dw_mci_idmac_init()
561 for (i = 0, p = host->sg_cpu; in dw_mci_idmac_init()
562 i < host->ring_size - 1; in dw_mci_idmac_init()
564 p->des3 = cpu_to_le32(host->sg_dma + in dw_mci_idmac_init()
571 p->des3 = cpu_to_le32(host->sg_dma); in dw_mci_idmac_init()
575 dw_mci_idmac_reset(host); in dw_mci_idmac_init()
577 if (host->dma_64bit_address == 1) { in dw_mci_idmac_init()
579 mci_writel(host, IDSTS64, IDMAC_INT_CLR); in dw_mci_idmac_init()
580 mci_writel(host, IDINTEN64, SDMMC_IDMAC_INT_NI | in dw_mci_idmac_init()
584 mci_writel(host, DBADDRL, host->sg_dma & 0xffffffff); in dw_mci_idmac_init()
585 mci_writel(host, DBADDRU, (u64)host->sg_dma >> 32); in dw_mci_idmac_init()
589 mci_writel(host, IDSTS, IDMAC_INT_CLR); in dw_mci_idmac_init()
590 mci_writel(host, IDINTEN, SDMMC_IDMAC_INT_NI | in dw_mci_idmac_init()
594 mci_writel(host, DBADDR, host->sg_dma); in dw_mci_idmac_init()
600 static inline int dw_mci_prepare_desc64(struct dw_mci *host, in dw_mci_prepare_desc64() argument
609 desc_first = desc_last = desc = host->sg_cpu; in dw_mci_prepare_desc64()
665 dev_dbg(host->dev, "descriptor is still owned by IDMAC.\n"); in dw_mci_prepare_desc64()
666 memset(host->sg_cpu, 0, DESC_RING_BUF_SZ); in dw_mci_prepare_desc64()
667 dw_mci_idmac_init(host); in dw_mci_prepare_desc64()
672 static inline int dw_mci_prepare_desc32(struct dw_mci *host, in dw_mci_prepare_desc32() argument
681 desc_first = desc_last = desc = host->sg_cpu; in dw_mci_prepare_desc32()
739 dev_dbg(host->dev, "descriptor is still owned by IDMAC.\n"); in dw_mci_prepare_desc32()
740 memset(host->sg_cpu, 0, DESC_RING_BUF_SZ); in dw_mci_prepare_desc32()
741 dw_mci_idmac_init(host); in dw_mci_prepare_desc32()
745 static int dw_mci_idmac_start_dma(struct dw_mci *host, unsigned int sg_len) in dw_mci_idmac_start_dma() argument
750 if (host->dma_64bit_address == 1) in dw_mci_idmac_start_dma()
751 ret = dw_mci_prepare_desc64(host, host->data, sg_len); in dw_mci_idmac_start_dma()
753 ret = dw_mci_prepare_desc32(host, host->data, sg_len); in dw_mci_idmac_start_dma()
762 dw_mci_ctrl_reset(host, SDMMC_CTRL_DMA_RESET); in dw_mci_idmac_start_dma()
763 dw_mci_idmac_reset(host); in dw_mci_idmac_start_dma()
766 temp = mci_readl(host, CTRL); in dw_mci_idmac_start_dma()
768 mci_writel(host, CTRL, temp); in dw_mci_idmac_start_dma()
774 temp = mci_readl(host, BMOD); in dw_mci_idmac_start_dma()
776 mci_writel(host, BMOD, temp); in dw_mci_idmac_start_dma()
779 mci_writel(host, PLDMND, 1); in dw_mci_idmac_start_dma()
793 static void dw_mci_edmac_stop_dma(struct dw_mci *host) in dw_mci_edmac_stop_dma() argument
795 dmaengine_terminate_async(host->dms->ch); in dw_mci_edmac_stop_dma()
798 static int dw_mci_edmac_start_dma(struct dw_mci *host, in dw_mci_edmac_start_dma() argument
803 struct scatterlist *sgl = host->data->sg; in dw_mci_edmac_start_dma()
805 u32 sg_elems = host->data->sg_len; in dw_mci_edmac_start_dma()
807 u32 fifo_offset = host->fifo_reg - host->regs; in dw_mci_edmac_start_dma()
811 cfg.dst_addr = host->phy_regs + fifo_offset; in dw_mci_edmac_start_dma()
817 fifoth_val = mci_readl(host, FIFOTH); in dw_mci_edmac_start_dma()
821 if (host->data->flags & MMC_DATA_WRITE) in dw_mci_edmac_start_dma()
826 ret = dmaengine_slave_config(host->dms->ch, &cfg); in dw_mci_edmac_start_dma()
828 dev_err(host->dev, "Failed to config edmac.\n"); in dw_mci_edmac_start_dma()
832 desc = dmaengine_prep_slave_sg(host->dms->ch, sgl, in dw_mci_edmac_start_dma()
836 dev_err(host->dev, "Can't prepare slave sg.\n"); in dw_mci_edmac_start_dma()
842 desc->callback_param = (void *)host; in dw_mci_edmac_start_dma()
846 if (host->data->flags & MMC_DATA_WRITE) in dw_mci_edmac_start_dma()
847 dma_sync_sg_for_device(mmc_dev(host->slot->mmc), sgl, in dw_mci_edmac_start_dma()
850 dma_async_issue_pending(host->dms->ch); in dw_mci_edmac_start_dma()
855 static int dw_mci_edmac_init(struct dw_mci *host) in dw_mci_edmac_init() argument
858 host->dms = kzalloc(sizeof(struct dw_mci_dma_slave), GFP_KERNEL); in dw_mci_edmac_init()
859 if (!host->dms) in dw_mci_edmac_init()
862 host->dms->ch = dma_request_slave_channel(host->dev, "rx-tx"); in dw_mci_edmac_init()
863 if (!host->dms->ch) { in dw_mci_edmac_init()
864 dev_err(host->dev, "Failed to get external DMA channel.\n"); in dw_mci_edmac_init()
865 kfree(host->dms); in dw_mci_edmac_init()
866 host->dms = NULL; in dw_mci_edmac_init()
873 static void dw_mci_edmac_exit(struct dw_mci *host) in dw_mci_edmac_exit() argument
875 if (host->dms) { in dw_mci_edmac_exit()
876 if (host->dms->ch) { in dw_mci_edmac_exit()
877 dma_release_channel(host->dms->ch); in dw_mci_edmac_exit()
878 host->dms->ch = NULL; in dw_mci_edmac_exit()
880 kfree(host->dms); in dw_mci_edmac_exit()
881 host->dms = NULL; in dw_mci_edmac_exit()
894 static int dw_mci_pre_dma_transfer(struct dw_mci *host, in dw_mci_pre_dma_transfer() argument
920 sg_len = dma_map_sg(host->dev, in dw_mci_pre_dma_transfer()
938 if (!slot->host->use_dma || !data) in dw_mci_pre_req()
944 if (dw_mci_pre_dma_transfer(slot->host, mrq->data, in dw_mci_pre_req()
956 if (!slot->host->use_dma || !data) in dw_mci_post_req()
960 dma_unmap_sg(slot->host->dev, in dw_mci_post_req()
971 struct dw_mci *host = slot->host; in dw_mci_get_cd() local
994 present = (mci_readl(slot->host, CDETECT) & (1 << slot->id)) in dw_mci_get_cd()
997 spin_lock_bh(&host->lock); in dw_mci_get_cd()
1003 spin_unlock_bh(&host->lock); in dw_mci_get_cd()
1008 static void dw_mci_adjust_fifoth(struct dw_mci *host, struct mmc_data *data) in dw_mci_adjust_fifoth() argument
1012 u32 fifo_width = 1 << host->data_shift; in dw_mci_adjust_fifoth()
1018 if (!host->use_dma) in dw_mci_adjust_fifoth()
1021 tx_wmark = (host->fifo_depth) / 2; in dw_mci_adjust_fifoth()
1022 tx_wmark_invers = host->fifo_depth - tx_wmark; in dw_mci_adjust_fifoth()
1045 mci_writel(host, FIFOTH, fifoth_val); in dw_mci_adjust_fifoth()
1048 static void dw_mci_ctrl_thld(struct dw_mci *host, struct mmc_data *data) in dw_mci_ctrl_thld() argument
1059 if (host->verid < DW_MMC_240A || in dw_mci_ctrl_thld()
1060 (host->verid < DW_MMC_280A && data->flags & MMC_DATA_WRITE)) in dw_mci_ctrl_thld()
1068 host->timing != MMC_TIMING_MMC_HS400) in dw_mci_ctrl_thld()
1076 if (host->timing != MMC_TIMING_MMC_HS200 && in dw_mci_ctrl_thld()
1077 host->timing != MMC_TIMING_UHS_SDR104 && in dw_mci_ctrl_thld()
1078 host->timing != MMC_TIMING_MMC_HS400) in dw_mci_ctrl_thld()
1081 blksz_depth = blksz / (1 << host->data_shift); in dw_mci_ctrl_thld()
1082 fifo_depth = host->fifo_depth; in dw_mci_ctrl_thld()
1093 mci_writel(host, CDTHRCTL, SDMMC_SET_THLD(thld_size, enable)); in dw_mci_ctrl_thld()
1097 mci_writel(host, CDTHRCTL, 0); in dw_mci_ctrl_thld()
1100 static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data) in dw_mci_submit_data_dma() argument
1106 host->using_dma = 0; in dw_mci_submit_data_dma()
1109 if (!host->use_dma) in dw_mci_submit_data_dma()
1112 sg_len = dw_mci_pre_dma_transfer(host, data, COOKIE_MAPPED); in dw_mci_submit_data_dma()
1114 host->dma_ops->stop(host); in dw_mci_submit_data_dma()
1118 host->using_dma = 1; in dw_mci_submit_data_dma()
1120 if (host->use_dma == TRANS_MODE_IDMAC) in dw_mci_submit_data_dma()
1121 dev_vdbg(host->dev, in dw_mci_submit_data_dma()
1123 (unsigned long)host->sg_cpu, in dw_mci_submit_data_dma()
1124 (unsigned long)host->sg_dma, in dw_mci_submit_data_dma()
1132 if (host->prev_blksz != data->blksz) in dw_mci_submit_data_dma()
1133 dw_mci_adjust_fifoth(host, data); in dw_mci_submit_data_dma()
1136 temp = mci_readl(host, CTRL); in dw_mci_submit_data_dma()
1138 mci_writel(host, CTRL, temp); in dw_mci_submit_data_dma()
1141 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_submit_data_dma()
1142 temp = mci_readl(host, INTMASK); in dw_mci_submit_data_dma()
1144 mci_writel(host, INTMASK, temp); in dw_mci_submit_data_dma()
1145 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_submit_data_dma()
1147 if (host->dma_ops->start(host, sg_len)) { in dw_mci_submit_data_dma()
1148 host->dma_ops->stop(host); in dw_mci_submit_data_dma()
1150 dev_dbg(host->dev, in dw_mci_submit_data_dma()
1159 static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data) in dw_mci_submit_data() argument
1167 WARN_ON(host->data); in dw_mci_submit_data()
1168 host->sg = NULL; in dw_mci_submit_data()
1169 host->data = data; in dw_mci_submit_data()
1172 host->dir_status = DW_MCI_RECV_STATUS; in dw_mci_submit_data()
1174 host->dir_status = DW_MCI_SEND_STATUS; in dw_mci_submit_data()
1176 dw_mci_ctrl_thld(host, data); in dw_mci_submit_data()
1178 if (dw_mci_submit_data_dma(host, data)) { in dw_mci_submit_data()
1179 if (host->data->flags & MMC_DATA_READ) in dw_mci_submit_data()
1184 sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); in dw_mci_submit_data()
1185 host->sg = data->sg; in dw_mci_submit_data()
1186 host->part_buf_start = 0; in dw_mci_submit_data()
1187 host->part_buf_count = 0; in dw_mci_submit_data()
1189 mci_writel(host, RINTSTS, SDMMC_INT_TXDR | SDMMC_INT_RXDR); in dw_mci_submit_data()
1191 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_submit_data()
1192 temp = mci_readl(host, INTMASK); in dw_mci_submit_data()
1194 mci_writel(host, INTMASK, temp); in dw_mci_submit_data()
1195 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_submit_data()
1197 temp = mci_readl(host, CTRL); in dw_mci_submit_data()
1199 mci_writel(host, CTRL, temp); in dw_mci_submit_data()
1207 if (host->wm_aligned) in dw_mci_submit_data()
1208 dw_mci_adjust_fifoth(host, data); in dw_mci_submit_data()
1210 mci_writel(host, FIFOTH, host->fifoth_val); in dw_mci_submit_data()
1211 host->prev_blksz = 0; in dw_mci_submit_data()
1218 host->prev_blksz = data->blksz; in dw_mci_submit_data()
1224 struct dw_mci *host = slot->host; in dw_mci_setup_bus() local
1231 if (host->state == STATE_WAITING_CMD11_DONE) in dw_mci_setup_bus()
1237 mci_writel(host, CLKENA, 0); in dw_mci_setup_bus()
1239 } else if (clock != host->current_speed || force_clkinit) { in dw_mci_setup_bus()
1240 div = host->bus_hz / clock; in dw_mci_setup_bus()
1241 if (host->bus_hz % clock && host->bus_hz > clock) in dw_mci_setup_bus()
1248 div = (host->bus_hz != clock) ? DIV_ROUND_UP(div, 2) : 0; in dw_mci_setup_bus()
1257 slot->id, host->bus_hz, clock, in dw_mci_setup_bus()
1258 div ? ((host->bus_hz / div) >> 1) : in dw_mci_setup_bus()
1259 host->bus_hz, div); in dw_mci_setup_bus()
1271 mci_writel(host, CLKENA, 0); in dw_mci_setup_bus()
1272 mci_writel(host, CLKSRC, 0); in dw_mci_setup_bus()
1278 mci_writel(host, CLKDIV, div); in dw_mci_setup_bus()
1287 mci_writel(host, CLKENA, clk_en_a); in dw_mci_setup_bus()
1294 slot->mmc->actual_clock = div ? ((host->bus_hz / div) >> 1) : in dw_mci_setup_bus()
1295 host->bus_hz; in dw_mci_setup_bus()
1298 host->current_speed = clock; in dw_mci_setup_bus()
1301 mci_writel(host, CTYPE, (slot->ctype << slot->id)); in dw_mci_setup_bus()
1304 static void __dw_mci_start_request(struct dw_mci *host, in __dw_mci_start_request() argument
1314 host->mrq = mrq; in __dw_mci_start_request()
1316 host->pending_events = 0; in __dw_mci_start_request()
1317 host->completed_events = 0; in __dw_mci_start_request()
1318 host->cmd_status = 0; in __dw_mci_start_request()
1319 host->data_status = 0; in __dw_mci_start_request()
1320 host->dir_status = 0; in __dw_mci_start_request()
1324 mci_writel(host, TMOUT, 0xFFFFFFFF); in __dw_mci_start_request()
1325 mci_writel(host, BYTCNT, data->blksz*data->blocks); in __dw_mci_start_request()
1326 mci_writel(host, BLKSIZ, data->blksz); in __dw_mci_start_request()
1336 dw_mci_submit_data(host, data); in __dw_mci_start_request()
1340 dw_mci_start_command(host, cmd, cmdflags); in __dw_mci_start_request()
1355 spin_lock_irqsave(&host->irq_lock, irqflags); in __dw_mci_start_request()
1356 if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) in __dw_mci_start_request()
1357 mod_timer(&host->cmd11_timer, in __dw_mci_start_request()
1359 spin_unlock_irqrestore(&host->irq_lock, irqflags); in __dw_mci_start_request()
1362 host->stop_cmdr = dw_mci_prep_stop_abort(host, cmd); in __dw_mci_start_request()
1365 static void dw_mci_start_request(struct dw_mci *host, in dw_mci_start_request() argument
1372 __dw_mci_start_request(host, slot, cmd); in dw_mci_start_request()
1375 /* must be called with host->lock held */
1376 static void dw_mci_queue_request(struct dw_mci *host, struct dw_mci_slot *slot, in dw_mci_queue_request() argument
1380 host->state); in dw_mci_queue_request()
1384 if (host->state == STATE_WAITING_CMD11_DONE) { in dw_mci_queue_request()
1392 host->state = STATE_IDLE; in dw_mci_queue_request()
1395 if (host->state == STATE_IDLE) { in dw_mci_queue_request()
1396 host->state = STATE_SENDING_CMD; in dw_mci_queue_request()
1397 dw_mci_start_request(host, slot); in dw_mci_queue_request()
1399 list_add_tail(&slot->queue_node, &host->queue); in dw_mci_queue_request()
1406 struct dw_mci *host = slot->host; in dw_mci_request() local
1422 spin_lock_bh(&host->lock); in dw_mci_request()
1424 dw_mci_queue_request(host, slot, mrq); in dw_mci_request()
1426 spin_unlock_bh(&host->lock); in dw_mci_request()
1432 const struct dw_mci_drv_data *drv_data = slot->host->drv_data; in dw_mci_set_ios()
1448 regs = mci_readl(slot->host, UHS_REG); in dw_mci_set_ios()
1458 mci_writel(slot->host, UHS_REG, regs); in dw_mci_set_ios()
1459 slot->host->timing = ios->timing; in dw_mci_set_ios()
1468 drv_data->set_ios(slot->host, ios); in dw_mci_set_ios()
1476 dev_err(slot->host->dev, in dw_mci_set_ios()
1483 regs = mci_readl(slot->host, PWREN); in dw_mci_set_ios()
1485 mci_writel(slot->host, PWREN, regs); in dw_mci_set_ios()
1488 if (!slot->host->vqmmc_enabled) { in dw_mci_set_ios()
1492 dev_err(slot->host->dev, in dw_mci_set_ios()
1495 slot->host->vqmmc_enabled = true; in dw_mci_set_ios()
1499 slot->host->vqmmc_enabled = true; in dw_mci_set_ios()
1503 dw_mci_ctrl_reset(slot->host, in dw_mci_set_ios()
1518 if (!IS_ERR(mmc->supply.vqmmc) && slot->host->vqmmc_enabled) in dw_mci_set_ios()
1520 slot->host->vqmmc_enabled = false; in dw_mci_set_ios()
1522 regs = mci_readl(slot->host, PWREN); in dw_mci_set_ios()
1524 mci_writel(slot->host, PWREN, regs); in dw_mci_set_ios()
1530 if (slot->host->state == STATE_WAITING_CMD11_DONE && ios->clock != 0) in dw_mci_set_ios()
1531 slot->host->state = STATE_IDLE; in dw_mci_set_ios()
1543 status = mci_readl(slot->host, STATUS); in dw_mci_card_busy()
1551 struct dw_mci *host = slot->host; in dw_mci_switch_voltage() local
1552 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_switch_voltage()
1565 uhs = mci_readl(host, UHS_REG); in dw_mci_switch_voltage()
1581 mci_writel(host, UHS_REG, uhs); in dw_mci_switch_voltage()
1597 mci_readl(slot->host, WRTPRT) & (1 << slot->id) ? 1 : 0; in dw_mci_get_ro()
1608 struct dw_mci *host = slot->host; in dw_mci_hw_reset() local
1611 if (host->use_dma == TRANS_MODE_IDMAC) in dw_mci_hw_reset()
1612 dw_mci_idmac_reset(host); in dw_mci_hw_reset()
1614 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_DMA_RESET | in dw_mci_hw_reset()
1624 reset = mci_readl(host, RST_N); in dw_mci_hw_reset()
1626 mci_writel(host, RST_N, reset); in dw_mci_hw_reset()
1629 mci_writel(host, RST_N, reset); in dw_mci_hw_reset()
1636 struct dw_mci *host = slot->host; in dw_mci_init_card() local
1648 clk_en_a_old = mci_readl(host, CLKENA); in dw_mci_init_card()
1660 mci_writel(host, CLKENA, clk_en_a); in dw_mci_init_card()
1669 struct dw_mci *host = slot->host; in __dw_mci_enable_sdio_irq() local
1673 spin_lock_irqsave(&host->irq_lock, irqflags); in __dw_mci_enable_sdio_irq()
1676 int_mask = mci_readl(host, INTMASK); in __dw_mci_enable_sdio_irq()
1681 mci_writel(host, INTMASK, int_mask); in __dw_mci_enable_sdio_irq()
1683 spin_unlock_irqrestore(&host->irq_lock, irqflags); in __dw_mci_enable_sdio_irq()
1689 struct dw_mci *host = slot->host; in dw_mci_enable_sdio_irq() local
1695 pm_runtime_get_noresume(host->dev); in dw_mci_enable_sdio_irq()
1697 pm_runtime_put_noidle(host->dev); in dw_mci_enable_sdio_irq()
1710 struct dw_mci *host = slot->host; in dw_mci_execute_tuning() local
1711 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_execute_tuning()
1723 struct dw_mci *host = slot->host; in dw_mci_prepare_hs400_tuning() local
1724 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_prepare_hs400_tuning()
1727 return drv_data->prepare_hs400_tuning(host, ios); in dw_mci_prepare_hs400_tuning()
1732 static bool dw_mci_reset(struct dw_mci *host) in dw_mci_reset() argument
1742 if (host->sg) { in dw_mci_reset()
1743 sg_miter_stop(&host->sg_miter); in dw_mci_reset()
1744 host->sg = NULL; in dw_mci_reset()
1747 if (host->use_dma) in dw_mci_reset()
1750 if (dw_mci_ctrl_reset(host, flags)) { in dw_mci_reset()
1755 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_reset()
1757 if (!host->use_dma) { in dw_mci_reset()
1763 if (readl_poll_timeout_atomic(host->regs + SDMMC_STATUS, in dw_mci_reset()
1767 dev_err(host->dev, in dw_mci_reset()
1774 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_FIFO_RESET)) in dw_mci_reset()
1778 if (!(mci_readl(host, CTRL) & SDMMC_CTRL_RESET)) { in dw_mci_reset()
1779 dev_err(host->dev, in dw_mci_reset()
1786 if (host->use_dma == TRANS_MODE_IDMAC) in dw_mci_reset()
1788 dw_mci_idmac_init(host); in dw_mci_reset()
1794 mci_send_cmd(host->slot, SDMMC_CMD_UPD_CLK, 0); in dw_mci_reset()
1816 static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq) in dw_mci_request_end() argument
1817 __releases(&host->lock) in dw_mci_request_end()
1818 __acquires(&host->lock) in dw_mci_request_end()
1821 struct mmc_host *prev_mmc = host->slot->mmc; in dw_mci_request_end()
1823 WARN_ON(host->cmd || host->data); in dw_mci_request_end()
1825 host->slot->mrq = NULL; in dw_mci_request_end()
1826 host->mrq = NULL; in dw_mci_request_end()
1827 if (!list_empty(&host->queue)) { in dw_mci_request_end()
1828 slot = list_entry(host->queue.next, in dw_mci_request_end()
1831 dev_vdbg(host->dev, "list not empty: %s is next\n", in dw_mci_request_end()
1833 host->state = STATE_SENDING_CMD; in dw_mci_request_end()
1834 dw_mci_start_request(host, slot); in dw_mci_request_end()
1836 dev_vdbg(host->dev, "list empty\n"); in dw_mci_request_end()
1838 if (host->state == STATE_SENDING_CMD11) in dw_mci_request_end()
1839 host->state = STATE_WAITING_CMD11_DONE; in dw_mci_request_end()
1841 host->state = STATE_IDLE; in dw_mci_request_end()
1844 spin_unlock(&host->lock); in dw_mci_request_end()
1846 spin_lock(&host->lock); in dw_mci_request_end()
1849 static int dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd) in dw_mci_command_complete() argument
1851 u32 status = host->cmd_status; in dw_mci_command_complete()
1853 host->cmd_status = 0; in dw_mci_command_complete()
1858 cmd->resp[3] = mci_readl(host, RESP0); in dw_mci_command_complete()
1859 cmd->resp[2] = mci_readl(host, RESP1); in dw_mci_command_complete()
1860 cmd->resp[1] = mci_readl(host, RESP2); in dw_mci_command_complete()
1861 cmd->resp[0] = mci_readl(host, RESP3); in dw_mci_command_complete()
1863 cmd->resp[0] = mci_readl(host, RESP0); in dw_mci_command_complete()
1882 static int dw_mci_data_complete(struct dw_mci *host, struct mmc_data *data) in dw_mci_data_complete() argument
1884 u32 status = host->data_status; in dw_mci_data_complete()
1892 if (host->dir_status == in dw_mci_data_complete()
1901 } else if (host->dir_status == in dw_mci_data_complete()
1910 dev_dbg(host->dev, "data error, status 0x%08x\n", status); in dw_mci_data_complete()
1916 dw_mci_reset(host); in dw_mci_data_complete()
1925 static void dw_mci_set_drto(struct dw_mci *host) in dw_mci_set_drto() argument
1932 drto_clks = mci_readl(host, TMOUT) >> 8; in dw_mci_set_drto()
1933 drto_div = (mci_readl(host, CLKDIV) & 0xff) * 2; in dw_mci_set_drto()
1938 host->bus_hz); in dw_mci_set_drto()
1943 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_set_drto()
1944 if (!test_bit(EVENT_DATA_COMPLETE, &host->pending_events)) in dw_mci_set_drto()
1945 mod_timer(&host->dto_timer, in dw_mci_set_drto()
1947 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_set_drto()
1950 static bool dw_mci_clear_pending_cmd_complete(struct dw_mci *host) in dw_mci_clear_pending_cmd_complete() argument
1952 if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) in dw_mci_clear_pending_cmd_complete()
1962 WARN_ON(del_timer_sync(&host->cto_timer)); in dw_mci_clear_pending_cmd_complete()
1963 clear_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_clear_pending_cmd_complete()
1968 static bool dw_mci_clear_pending_data_complete(struct dw_mci *host) in dw_mci_clear_pending_data_complete() argument
1970 if (!test_bit(EVENT_DATA_COMPLETE, &host->pending_events)) in dw_mci_clear_pending_data_complete()
1974 WARN_ON(del_timer_sync(&host->dto_timer)); in dw_mci_clear_pending_data_complete()
1975 clear_bit(EVENT_DATA_COMPLETE, &host->pending_events); in dw_mci_clear_pending_data_complete()
1982 struct dw_mci *host = (struct dw_mci *)priv; in dw_mci_tasklet_func() local
1990 spin_lock(&host->lock); in dw_mci_tasklet_func()
1992 state = host->state; in dw_mci_tasklet_func()
1993 data = host->data; in dw_mci_tasklet_func()
1994 mrq = host->mrq; in dw_mci_tasklet_func()
2006 if (!dw_mci_clear_pending_cmd_complete(host)) in dw_mci_tasklet_func()
2009 cmd = host->cmd; in dw_mci_tasklet_func()
2010 host->cmd = NULL; in dw_mci_tasklet_func()
2011 set_bit(EVENT_CMD_COMPLETE, &host->completed_events); in dw_mci_tasklet_func()
2012 err = dw_mci_command_complete(host, cmd); in dw_mci_tasklet_func()
2014 __dw_mci_start_request(host, host->slot, in dw_mci_tasklet_func()
2046 dw_mci_stop_dma(host); in dw_mci_tasklet_func()
2047 send_stop_abort(host, data); in dw_mci_tasklet_func()
2053 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2070 &host->pending_events)) { in dw_mci_tasklet_func()
2071 dw_mci_stop_dma(host); in dw_mci_tasklet_func()
2072 if (!(host->data_status & (SDMMC_INT_DRTO | in dw_mci_tasklet_func()
2074 send_stop_abort(host, data); in dw_mci_tasklet_func()
2080 &host->pending_events)) { in dw_mci_tasklet_func()
2085 if (host->dir_status == DW_MCI_RECV_STATUS) in dw_mci_tasklet_func()
2086 dw_mci_set_drto(host); in dw_mci_tasklet_func()
2090 set_bit(EVENT_XFER_COMPLETE, &host->completed_events); in dw_mci_tasklet_func()
2106 &host->pending_events)) { in dw_mci_tasklet_func()
2107 dw_mci_stop_dma(host); in dw_mci_tasklet_func()
2108 if (!(host->data_status & (SDMMC_INT_DRTO | in dw_mci_tasklet_func()
2110 send_stop_abort(host, data); in dw_mci_tasklet_func()
2119 if (!dw_mci_clear_pending_data_complete(host)) { in dw_mci_tasklet_func()
2125 if (host->dir_status == DW_MCI_RECV_STATUS) in dw_mci_tasklet_func()
2126 dw_mci_set_drto(host); in dw_mci_tasklet_func()
2130 host->data = NULL; in dw_mci_tasklet_func()
2131 set_bit(EVENT_DATA_COMPLETE, &host->completed_events); in dw_mci_tasklet_func()
2132 err = dw_mci_data_complete(host, data); in dw_mci_tasklet_func()
2138 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2144 send_stop_abort(host, data); in dw_mci_tasklet_func()
2156 &host->pending_events)) { in dw_mci_tasklet_func()
2157 host->cmd = NULL; in dw_mci_tasklet_func()
2158 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2172 if (!dw_mci_clear_pending_cmd_complete(host)) in dw_mci_tasklet_func()
2177 dw_mci_reset(host); in dw_mci_tasklet_func()
2179 host->cmd = NULL; in dw_mci_tasklet_func()
2180 host->data = NULL; in dw_mci_tasklet_func()
2183 dw_mci_command_complete(host, mrq->stop); in dw_mci_tasklet_func()
2185 host->cmd_status = 0; in dw_mci_tasklet_func()
2187 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2192 &host->pending_events)) in dw_mci_tasklet_func()
2200 host->state = state; in dw_mci_tasklet_func()
2202 spin_unlock(&host->lock); in dw_mci_tasklet_func()
2207 static void dw_mci_set_part_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_set_part_bytes() argument
2209 memcpy((void *)&host->part_buf, buf, cnt); in dw_mci_set_part_bytes()
2210 host->part_buf_count = cnt; in dw_mci_set_part_bytes()
2214 static int dw_mci_push_part_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_part_bytes() argument
2216 cnt = min(cnt, (1 << host->data_shift) - host->part_buf_count); in dw_mci_push_part_bytes()
2217 memcpy((void *)&host->part_buf + host->part_buf_count, buf, cnt); in dw_mci_push_part_bytes()
2218 host->part_buf_count += cnt; in dw_mci_push_part_bytes()
2223 static int dw_mci_pull_part_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_part_bytes() argument
2225 cnt = min_t(int, cnt, host->part_buf_count); in dw_mci_pull_part_bytes()
2227 memcpy(buf, (void *)&host->part_buf + host->part_buf_start, in dw_mci_pull_part_bytes()
2229 host->part_buf_count -= cnt; in dw_mci_pull_part_bytes()
2230 host->part_buf_start += cnt; in dw_mci_pull_part_bytes()
2236 static void dw_mci_pull_final_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_final_bytes() argument
2238 memcpy(buf, &host->part_buf, cnt); in dw_mci_pull_final_bytes()
2239 host->part_buf_start = cnt; in dw_mci_pull_final_bytes()
2240 host->part_buf_count = (1 << host->data_shift) - cnt; in dw_mci_pull_final_bytes()
2243 static void dw_mci_push_data16(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_data16() argument
2245 struct mmc_data *data = host->data; in dw_mci_push_data16()
2249 if (unlikely(host->part_buf_count)) { in dw_mci_push_data16()
2250 int len = dw_mci_push_part_bytes(host, buf, cnt); in dw_mci_push_data16()
2254 if (host->part_buf_count == 2) { in dw_mci_push_data16()
2255 mci_fifo_writew(host->fifo_reg, host->part_buf16); in dw_mci_push_data16()
2256 host->part_buf_count = 0; in dw_mci_push_data16()
2272 mci_fifo_writew(host->fifo_reg, aligned_buf[i]); in dw_mci_push_data16()
2280 mci_fifo_writew(host->fifo_reg, *pdata++); in dw_mci_push_data16()
2285 dw_mci_set_part_bytes(host, buf, cnt); in dw_mci_push_data16()
2289 mci_fifo_writew(host->fifo_reg, host->part_buf16); in dw_mci_push_data16()
2293 static void dw_mci_pull_data16(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data16() argument
2305 aligned_buf[i] = mci_fifo_readw(host->fifo_reg); in dw_mci_pull_data16()
2317 *pdata++ = mci_fifo_readw(host->fifo_reg); in dw_mci_pull_data16()
2321 host->part_buf16 = mci_fifo_readw(host->fifo_reg); in dw_mci_pull_data16()
2322 dw_mci_pull_final_bytes(host, buf, cnt); in dw_mci_pull_data16()
2326 static void dw_mci_push_data32(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_data32() argument
2328 struct mmc_data *data = host->data; in dw_mci_push_data32()
2332 if (unlikely(host->part_buf_count)) { in dw_mci_push_data32()
2333 int len = dw_mci_push_part_bytes(host, buf, cnt); in dw_mci_push_data32()
2337 if (host->part_buf_count == 4) { in dw_mci_push_data32()
2338 mci_fifo_writel(host->fifo_reg, host->part_buf32); in dw_mci_push_data32()
2339 host->part_buf_count = 0; in dw_mci_push_data32()
2355 mci_fifo_writel(host->fifo_reg, aligned_buf[i]); in dw_mci_push_data32()
2363 mci_fifo_writel(host->fifo_reg, *pdata++); in dw_mci_push_data32()
2368 dw_mci_set_part_bytes(host, buf, cnt); in dw_mci_push_data32()
2372 mci_fifo_writel(host->fifo_reg, host->part_buf32); in dw_mci_push_data32()
2376 static void dw_mci_pull_data32(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data32() argument
2388 aligned_buf[i] = mci_fifo_readl(host->fifo_reg); in dw_mci_pull_data32()
2400 *pdata++ = mci_fifo_readl(host->fifo_reg); in dw_mci_pull_data32()
2404 host->part_buf32 = mci_fifo_readl(host->fifo_reg); in dw_mci_pull_data32()
2405 dw_mci_pull_final_bytes(host, buf, cnt); in dw_mci_pull_data32()
2409 static void dw_mci_push_data64(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_data64() argument
2411 struct mmc_data *data = host->data; in dw_mci_push_data64()
2415 if (unlikely(host->part_buf_count)) { in dw_mci_push_data64()
2416 int len = dw_mci_push_part_bytes(host, buf, cnt); in dw_mci_push_data64()
2421 if (host->part_buf_count == 8) { in dw_mci_push_data64()
2422 mci_fifo_writeq(host->fifo_reg, host->part_buf); in dw_mci_push_data64()
2423 host->part_buf_count = 0; in dw_mci_push_data64()
2439 mci_fifo_writeq(host->fifo_reg, aligned_buf[i]); in dw_mci_push_data64()
2447 mci_fifo_writeq(host->fifo_reg, *pdata++); in dw_mci_push_data64()
2452 dw_mci_set_part_bytes(host, buf, cnt); in dw_mci_push_data64()
2456 mci_fifo_writeq(host->fifo_reg, host->part_buf); in dw_mci_push_data64()
2460 static void dw_mci_pull_data64(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data64() argument
2472 aligned_buf[i] = mci_fifo_readq(host->fifo_reg); in dw_mci_pull_data64()
2485 *pdata++ = mci_fifo_readq(host->fifo_reg); in dw_mci_pull_data64()
2489 host->part_buf = mci_fifo_readq(host->fifo_reg); in dw_mci_pull_data64()
2490 dw_mci_pull_final_bytes(host, buf, cnt); in dw_mci_pull_data64()
2494 static void dw_mci_pull_data(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data() argument
2499 len = dw_mci_pull_part_bytes(host, buf, cnt); in dw_mci_pull_data()
2506 host->pull_data(host, buf, cnt); in dw_mci_pull_data()
2509 static void dw_mci_read_data_pio(struct dw_mci *host, bool dto) in dw_mci_read_data_pio() argument
2511 struct sg_mapping_iter *sg_miter = &host->sg_miter; in dw_mci_read_data_pio()
2514 struct mmc_data *data = host->data; in dw_mci_read_data_pio()
2515 int shift = host->data_shift; in dw_mci_read_data_pio()
2524 host->sg = sg_miter->piter.sg; in dw_mci_read_data_pio()
2530 fcnt = (SDMMC_GET_FCNT(mci_readl(host, STATUS)) in dw_mci_read_data_pio()
2531 << shift) + host->part_buf_count; in dw_mci_read_data_pio()
2535 dw_mci_pull_data(host, (void *)(buf + offset), len); in dw_mci_read_data_pio()
2542 status = mci_readl(host, MINTSTS); in dw_mci_read_data_pio()
2543 mci_writel(host, RINTSTS, SDMMC_INT_RXDR); in dw_mci_read_data_pio()
2546 (dto && SDMMC_GET_FCNT(mci_readl(host, STATUS)))); in dw_mci_read_data_pio()
2558 host->sg = NULL; in dw_mci_read_data_pio()
2560 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_read_data_pio()
2563 static void dw_mci_write_data_pio(struct dw_mci *host) in dw_mci_write_data_pio() argument
2565 struct sg_mapping_iter *sg_miter = &host->sg_miter; in dw_mci_write_data_pio()
2568 struct mmc_data *data = host->data; in dw_mci_write_data_pio()
2569 int shift = host->data_shift; in dw_mci_write_data_pio()
2572 unsigned int fifo_depth = host->fifo_depth; in dw_mci_write_data_pio()
2579 host->sg = sg_miter->piter.sg; in dw_mci_write_data_pio()
2586 SDMMC_GET_FCNT(mci_readl(host, STATUS))) in dw_mci_write_data_pio()
2587 << shift) - host->part_buf_count; in dw_mci_write_data_pio()
2591 host->push_data(host, (void *)(buf + offset), len); in dw_mci_write_data_pio()
2598 status = mci_readl(host, MINTSTS); in dw_mci_write_data_pio()
2599 mci_writel(host, RINTSTS, SDMMC_INT_TXDR); in dw_mci_write_data_pio()
2612 host->sg = NULL; in dw_mci_write_data_pio()
2614 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_write_data_pio()
2617 static void dw_mci_cmd_interrupt(struct dw_mci *host, u32 status) in dw_mci_cmd_interrupt() argument
2619 del_timer(&host->cto_timer); in dw_mci_cmd_interrupt()
2621 if (!host->cmd_status) in dw_mci_cmd_interrupt()
2622 host->cmd_status = status; in dw_mci_cmd_interrupt()
2626 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_cmd_interrupt()
2627 tasklet_schedule(&host->tasklet); in dw_mci_cmd_interrupt()
2630 static void dw_mci_handle_cd(struct dw_mci *host) in dw_mci_handle_cd() argument
2632 struct dw_mci_slot *slot = host->slot; in dw_mci_handle_cd()
2637 msecs_to_jiffies(host->pdata->detect_delay_ms)); in dw_mci_handle_cd()
2642 struct dw_mci *host = dev_id; in dw_mci_interrupt() local
2644 struct dw_mci_slot *slot = host->slot; in dw_mci_interrupt()
2647 pending = mci_readl(host, MINTSTS); /* read-only mask reg */ in dw_mci_interrupt()
2651 if ((host->state == STATE_SENDING_CMD11) && in dw_mci_interrupt()
2653 mci_writel(host, RINTSTS, SDMMC_INT_VOLT_SWITCH); in dw_mci_interrupt()
2660 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2661 dw_mci_cmd_interrupt(host, pending); in dw_mci_interrupt()
2662 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2664 del_timer(&host->cmd11_timer); in dw_mci_interrupt()
2668 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2670 del_timer(&host->cto_timer); in dw_mci_interrupt()
2671 mci_writel(host, RINTSTS, DW_MCI_CMD_ERROR_FLAGS); in dw_mci_interrupt()
2672 host->cmd_status = pending; in dw_mci_interrupt()
2674 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_interrupt()
2676 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2681 mci_writel(host, RINTSTS, DW_MCI_DATA_ERROR_FLAGS); in dw_mci_interrupt()
2682 host->data_status = pending; in dw_mci_interrupt()
2684 set_bit(EVENT_DATA_ERROR, &host->pending_events); in dw_mci_interrupt()
2685 tasklet_schedule(&host->tasklet); in dw_mci_interrupt()
2689 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2691 del_timer(&host->dto_timer); in dw_mci_interrupt()
2693 mci_writel(host, RINTSTS, SDMMC_INT_DATA_OVER); in dw_mci_interrupt()
2694 if (!host->data_status) in dw_mci_interrupt()
2695 host->data_status = pending; in dw_mci_interrupt()
2697 if (host->dir_status == DW_MCI_RECV_STATUS) { in dw_mci_interrupt()
2698 if (host->sg != NULL) in dw_mci_interrupt()
2699 dw_mci_read_data_pio(host, true); in dw_mci_interrupt()
2701 set_bit(EVENT_DATA_COMPLETE, &host->pending_events); in dw_mci_interrupt()
2702 tasklet_schedule(&host->tasklet); in dw_mci_interrupt()
2704 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2708 mci_writel(host, RINTSTS, SDMMC_INT_RXDR); in dw_mci_interrupt()
2709 if (host->dir_status == DW_MCI_RECV_STATUS && host->sg) in dw_mci_interrupt()
2710 dw_mci_read_data_pio(host, false); in dw_mci_interrupt()
2714 mci_writel(host, RINTSTS, SDMMC_INT_TXDR); in dw_mci_interrupt()
2715 if (host->dir_status == DW_MCI_SEND_STATUS && host->sg) in dw_mci_interrupt()
2716 dw_mci_write_data_pio(host); in dw_mci_interrupt()
2720 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2722 mci_writel(host, RINTSTS, SDMMC_INT_CMD_DONE); in dw_mci_interrupt()
2723 dw_mci_cmd_interrupt(host, pending); in dw_mci_interrupt()
2725 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2729 mci_writel(host, RINTSTS, SDMMC_INT_CD); in dw_mci_interrupt()
2730 dw_mci_handle_cd(host); in dw_mci_interrupt()
2734 mci_writel(host, RINTSTS, in dw_mci_interrupt()
2742 if (host->use_dma != TRANS_MODE_IDMAC) in dw_mci_interrupt()
2746 if (host->dma_64bit_address == 1) { in dw_mci_interrupt()
2747 pending = mci_readl(host, IDSTS64); in dw_mci_interrupt()
2749 mci_writel(host, IDSTS64, SDMMC_IDMAC_INT_TI | in dw_mci_interrupt()
2751 mci_writel(host, IDSTS64, SDMMC_IDMAC_INT_NI); in dw_mci_interrupt()
2752 if (!test_bit(EVENT_DATA_ERROR, &host->pending_events)) in dw_mci_interrupt()
2753 host->dma_ops->complete((void *)host); in dw_mci_interrupt()
2756 pending = mci_readl(host, IDSTS); in dw_mci_interrupt()
2758 mci_writel(host, IDSTS, SDMMC_IDMAC_INT_TI | in dw_mci_interrupt()
2760 mci_writel(host, IDSTS, SDMMC_IDMAC_INT_NI); in dw_mci_interrupt()
2761 if (!test_bit(EVENT_DATA_ERROR, &host->pending_events)) in dw_mci_interrupt()
2762 host->dma_ops->complete((void *)host); in dw_mci_interrupt()
2771 struct dw_mci *host = slot->host; in dw_mci_init_slot_caps() local
2772 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_init_slot_caps()
2776 if (host->pdata->caps) in dw_mci_init_slot_caps()
2777 mmc->caps = host->pdata->caps; in dw_mci_init_slot_caps()
2785 if (host->pdata->pm_caps) in dw_mci_init_slot_caps()
2786 mmc->pm_caps = host->pdata->pm_caps; in dw_mci_init_slot_caps()
2788 if (host->dev->of_node) { in dw_mci_init_slot_caps()
2789 ctrl_id = of_alias_get_id(host->dev->of_node, "mshc"); in dw_mci_init_slot_caps()
2793 ctrl_id = to_platform_device(host->dev)->id; in dw_mci_init_slot_caps()
2798 dev_err(host->dev, "invalid controller id %d\n", in dw_mci_init_slot_caps()
2805 if (host->pdata->caps2) in dw_mci_init_slot_caps()
2806 mmc->caps2 = host->pdata->caps2; in dw_mci_init_slot_caps()
2819 static int dw_mci_init_slot(struct dw_mci *host) in dw_mci_init_slot() argument
2825 mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), host->dev); in dw_mci_init_slot()
2831 slot->sdio_id = host->sdio_id0 + slot->id; in dw_mci_init_slot()
2833 slot->host = host; in dw_mci_init_slot()
2834 host->slot = slot; in dw_mci_init_slot()
2855 if (host->use_dma == TRANS_MODE_IDMAC) { in dw_mci_init_slot()
2856 mmc->max_segs = host->ring_size; in dw_mci_init_slot()
2859 mmc->max_req_size = mmc->max_seg_size * host->ring_size; in dw_mci_init_slot()
2861 } else if (host->use_dma == TRANS_MODE_EDMAC) { in dw_mci_init_slot()
2899 slot->host->slot = NULL; in dw_mci_cleanup_slot()
2903 static void dw_mci_init_dma(struct dw_mci *host) in dw_mci_init_dma() argument
2906 struct device *dev = host->dev; in dw_mci_init_dma()
2919 host->use_dma = SDMMC_GET_TRANS_MODE(mci_readl(host, HCON)); in dw_mci_init_dma()
2920 if (host->use_dma == DMA_INTERFACE_IDMA) { in dw_mci_init_dma()
2921 host->use_dma = TRANS_MODE_IDMAC; in dw_mci_init_dma()
2922 } else if (host->use_dma == DMA_INTERFACE_DWDMA || in dw_mci_init_dma()
2923 host->use_dma == DMA_INTERFACE_GDMA) { in dw_mci_init_dma()
2924 host->use_dma = TRANS_MODE_EDMAC; in dw_mci_init_dma()
2930 if (host->use_dma == TRANS_MODE_IDMAC) { in dw_mci_init_dma()
2935 addr_config = SDMMC_GET_ADDR_CONFIG(mci_readl(host, HCON)); in dw_mci_init_dma()
2938 /* host supports IDMAC in 64-bit address mode */ in dw_mci_init_dma()
2939 host->dma_64bit_address = 1; in dw_mci_init_dma()
2940 dev_info(host->dev, in dw_mci_init_dma()
2942 if (!dma_set_mask(host->dev, DMA_BIT_MASK(64))) in dw_mci_init_dma()
2943 dma_set_coherent_mask(host->dev, in dw_mci_init_dma()
2946 /* host supports IDMAC in 32-bit address mode */ in dw_mci_init_dma()
2947 host->dma_64bit_address = 0; in dw_mci_init_dma()
2948 dev_info(host->dev, in dw_mci_init_dma()
2953 host->sg_cpu = dmam_alloc_coherent(host->dev, in dw_mci_init_dma()
2955 &host->sg_dma, GFP_KERNEL); in dw_mci_init_dma()
2956 if (!host->sg_cpu) { in dw_mci_init_dma()
2957 dev_err(host->dev, in dw_mci_init_dma()
2963 host->dma_ops = &dw_mci_idmac_ops; in dw_mci_init_dma()
2964 dev_info(host->dev, "Using internal DMA controller.\n"); in dw_mci_init_dma()
2972 host->dma_ops = &dw_mci_edmac_ops; in dw_mci_init_dma()
2973 dev_info(host->dev, "Using external DMA controller.\n"); in dw_mci_init_dma()
2976 if (host->dma_ops->init && host->dma_ops->start && in dw_mci_init_dma()
2977 host->dma_ops->stop && host->dma_ops->cleanup) { in dw_mci_init_dma()
2978 if (host->dma_ops->init(host)) { in dw_mci_init_dma()
2979 dev_err(host->dev, "%s: Unable to initialize DMA Controller.\n", in dw_mci_init_dma()
2984 dev_err(host->dev, "DMA initialization not found.\n"); in dw_mci_init_dma()
2991 dev_info(host->dev, "Using PIO mode.\n"); in dw_mci_init_dma()
2992 host->use_dma = TRANS_MODE_PIO; in dw_mci_init_dma()
2997 struct dw_mci *host = from_timer(host, t, cmd11_timer); in dw_mci_cmd11_timer() local
2999 if (host->state != STATE_SENDING_CMD11) { in dw_mci_cmd11_timer()
3000 dev_warn(host->dev, "Unexpected CMD11 timeout\n"); in dw_mci_cmd11_timer()
3004 host->cmd_status = SDMMC_INT_RTO; in dw_mci_cmd11_timer()
3005 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_cmd11_timer()
3006 tasklet_schedule(&host->tasklet); in dw_mci_cmd11_timer()
3011 struct dw_mci *host = from_timer(host, t, cto_timer); in dw_mci_cto_timer() local
3015 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_cto_timer()
3025 pending = mci_readl(host, MINTSTS); /* read-only mask reg */ in dw_mci_cto_timer()
3028 dev_warn(host->dev, "Unexpected interrupt latency\n"); in dw_mci_cto_timer()
3031 if (test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) { in dw_mci_cto_timer()
3033 dev_warn(host->dev, "CTO timeout when already completed\n"); in dw_mci_cto_timer()
3041 switch (host->state) { in dw_mci_cto_timer()
3050 host->cmd_status = SDMMC_INT_RTO; in dw_mci_cto_timer()
3051 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_cto_timer()
3052 tasklet_schedule(&host->tasklet); in dw_mci_cto_timer()
3055 dev_warn(host->dev, "Unexpected command timeout, state %d\n", in dw_mci_cto_timer()
3056 host->state); in dw_mci_cto_timer()
3061 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_cto_timer()
3066 struct dw_mci *host = from_timer(host, t, dto_timer); in dw_mci_dto_timer() local
3070 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_dto_timer()
3076 pending = mci_readl(host, MINTSTS); /* read-only mask reg */ in dw_mci_dto_timer()
3079 dev_warn(host->dev, "Unexpected data interrupt latency\n"); in dw_mci_dto_timer()
3082 if (test_bit(EVENT_DATA_COMPLETE, &host->pending_events)) { in dw_mci_dto_timer()
3084 dev_warn(host->dev, "DTO timeout when already completed\n"); in dw_mci_dto_timer()
3092 switch (host->state) { in dw_mci_dto_timer()
3100 host->data_status = SDMMC_INT_DRTO; in dw_mci_dto_timer()
3101 set_bit(EVENT_DATA_ERROR, &host->pending_events); in dw_mci_dto_timer()
3102 set_bit(EVENT_DATA_COMPLETE, &host->pending_events); in dw_mci_dto_timer()
3103 tasklet_schedule(&host->tasklet); in dw_mci_dto_timer()
3106 dev_warn(host->dev, "Unexpected data timeout, state %d\n", in dw_mci_dto_timer()
3107 host->state); in dw_mci_dto_timer()
3112 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_dto_timer()
3116 static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) in dw_mci_parse_dt() argument
3119 struct device *dev = host->dev; in dw_mci_parse_dt()
3120 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_parse_dt()
3142 device_property_read_u32(dev, "data-addr", &host->data_addr_override); in dw_mci_parse_dt()
3145 host->wm_aligned = true; in dw_mci_parse_dt()
3151 ret = drv_data->parse_dt(host); in dw_mci_parse_dt()
3160 static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) in dw_mci_parse_dt() argument
3166 static void dw_mci_enable_cd(struct dw_mci *host) in dw_mci_enable_cd() argument
3175 if (host->slot->mmc->caps & MMC_CAP_NEEDS_POLL) in dw_mci_enable_cd()
3178 if (mmc_gpio_get_cd(host->slot->mmc) < 0) { in dw_mci_enable_cd()
3179 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_enable_cd()
3180 temp = mci_readl(host, INTMASK); in dw_mci_enable_cd()
3182 mci_writel(host, INTMASK, temp); in dw_mci_enable_cd()
3183 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_enable_cd()
3187 int dw_mci_probe(struct dw_mci *host) in dw_mci_probe() argument
3189 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_probe()
3193 if (!host->pdata) { in dw_mci_probe()
3194 host->pdata = dw_mci_parse_dt(host); in dw_mci_probe()
3195 if (PTR_ERR(host->pdata) == -EPROBE_DEFER) { in dw_mci_probe()
3197 } else if (IS_ERR(host->pdata)) { in dw_mci_probe()
3198 dev_err(host->dev, "platform data not available\n"); in dw_mci_probe()
3203 host->biu_clk = devm_clk_get(host->dev, "biu"); in dw_mci_probe()
3204 if (IS_ERR(host->biu_clk)) { in dw_mci_probe()
3205 dev_dbg(host->dev, "biu clock not available\n"); in dw_mci_probe()
3207 ret = clk_prepare_enable(host->biu_clk); in dw_mci_probe()
3209 dev_err(host->dev, "failed to enable biu clock\n"); in dw_mci_probe()
3214 host->ciu_clk = devm_clk_get(host->dev, "ciu"); in dw_mci_probe()
3215 if (IS_ERR(host->ciu_clk)) { in dw_mci_probe()
3216 dev_dbg(host->dev, "ciu clock not available\n"); in dw_mci_probe()
3217 host->bus_hz = host->pdata->bus_hz; in dw_mci_probe()
3219 ret = clk_prepare_enable(host->ciu_clk); in dw_mci_probe()
3221 dev_err(host->dev, "failed to enable ciu clock\n"); in dw_mci_probe()
3225 if (host->pdata->bus_hz) { in dw_mci_probe()
3226 ret = clk_set_rate(host->ciu_clk, host->pdata->bus_hz); in dw_mci_probe()
3228 dev_warn(host->dev, in dw_mci_probe()
3230 host->pdata->bus_hz); in dw_mci_probe()
3232 host->bus_hz = clk_get_rate(host->ciu_clk); in dw_mci_probe()
3235 if (!host->bus_hz) { in dw_mci_probe()
3236 dev_err(host->dev, in dw_mci_probe()
3242 if (!IS_ERR(host->pdata->rstc)) { in dw_mci_probe()
3243 reset_control_assert(host->pdata->rstc); in dw_mci_probe()
3245 reset_control_deassert(host->pdata->rstc); in dw_mci_probe()
3249 ret = drv_data->init(host); in dw_mci_probe()
3251 dev_err(host->dev, in dw_mci_probe()
3257 timer_setup(&host->cmd11_timer, dw_mci_cmd11_timer, 0); in dw_mci_probe()
3258 timer_setup(&host->cto_timer, dw_mci_cto_timer, 0); in dw_mci_probe()
3259 timer_setup(&host->dto_timer, dw_mci_dto_timer, 0); in dw_mci_probe()
3261 spin_lock_init(&host->lock); in dw_mci_probe()
3262 spin_lock_init(&host->irq_lock); in dw_mci_probe()
3263 INIT_LIST_HEAD(&host->queue); in dw_mci_probe()
3266 * Get the host data width - this assumes that HCON has been set with in dw_mci_probe()
3269 i = SDMMC_GET_HDATA_WIDTH(mci_readl(host, HCON)); in dw_mci_probe()
3271 host->push_data = dw_mci_push_data16; in dw_mci_probe()
3272 host->pull_data = dw_mci_pull_data16; in dw_mci_probe()
3274 host->data_shift = 1; in dw_mci_probe()
3276 host->push_data = dw_mci_push_data64; in dw_mci_probe()
3277 host->pull_data = dw_mci_pull_data64; in dw_mci_probe()
3279 host->data_shift = 3; in dw_mci_probe()
3283 "HCON reports a reserved host data width!\n" in dw_mci_probe()
3285 host->push_data = dw_mci_push_data32; in dw_mci_probe()
3286 host->pull_data = dw_mci_pull_data32; in dw_mci_probe()
3288 host->data_shift = 2; in dw_mci_probe()
3292 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_ALL_RESET_FLAGS)) { in dw_mci_probe()
3297 host->dma_ops = host->pdata->dma_ops; in dw_mci_probe()
3298 dw_mci_init_dma(host); in dw_mci_probe()
3300 /* Clear the interrupts for the host controller */ in dw_mci_probe()
3301 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_probe()
3302 mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */ in dw_mci_probe()
3305 mci_writel(host, TMOUT, 0xFFFFFFFF); in dw_mci_probe()
3311 if (!host->pdata->fifo_depth) { in dw_mci_probe()
3318 fifo_size = mci_readl(host, FIFOTH); in dw_mci_probe()
3321 fifo_size = host->pdata->fifo_depth; in dw_mci_probe()
3323 host->fifo_depth = fifo_size; in dw_mci_probe()
3324 host->fifoth_val = in dw_mci_probe()
3326 mci_writel(host, FIFOTH, host->fifoth_val); in dw_mci_probe()
3329 mci_writel(host, CLKENA, 0); in dw_mci_probe()
3330 mci_writel(host, CLKSRC, 0); in dw_mci_probe()
3336 host->verid = SDMMC_GET_VERID(mci_readl(host, VERID)); in dw_mci_probe()
3337 dev_info(host->dev, "Version ID is %04x\n", host->verid); in dw_mci_probe()
3339 if (host->data_addr_override) in dw_mci_probe()
3340 host->fifo_reg = host->regs + host->data_addr_override; in dw_mci_probe()
3341 else if (host->verid < DW_MMC_240A) in dw_mci_probe()
3342 host->fifo_reg = host->regs + DATA_OFFSET; in dw_mci_probe()
3344 host->fifo_reg = host->regs + DATA_240A_OFFSET; in dw_mci_probe()
3346 tasklet_init(&host->tasklet, dw_mci_tasklet_func, (unsigned long)host); in dw_mci_probe()
3347 ret = devm_request_irq(host->dev, host->irq, dw_mci_interrupt, in dw_mci_probe()
3348 host->irq_flags, "dw-mci", host); in dw_mci_probe()
3356 mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | in dw_mci_probe()
3360 mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); in dw_mci_probe()
3362 dev_info(host->dev, in dw_mci_probe()
3363 "DW MMC controller at irq %d,%d bit host data width,%u deep fifo\n", in dw_mci_probe()
3364 host->irq, width, fifo_size); in dw_mci_probe()
3367 ret = dw_mci_init_slot(host); in dw_mci_probe()
3369 dev_dbg(host->dev, "slot %d init failed\n", i); in dw_mci_probe()
3374 dw_mci_enable_cd(host); in dw_mci_probe()
3379 if (host->use_dma && host->dma_ops->exit) in dw_mci_probe()
3380 host->dma_ops->exit(host); in dw_mci_probe()
3382 if (!IS_ERR(host->pdata->rstc)) in dw_mci_probe()
3383 reset_control_assert(host->pdata->rstc); in dw_mci_probe()
3386 clk_disable_unprepare(host->ciu_clk); in dw_mci_probe()
3389 clk_disable_unprepare(host->biu_clk); in dw_mci_probe()
3395 void dw_mci_remove(struct dw_mci *host) in dw_mci_remove() argument
3397 dev_dbg(host->dev, "remove slot\n"); in dw_mci_remove()
3398 if (host->slot) in dw_mci_remove()
3399 dw_mci_cleanup_slot(host->slot); in dw_mci_remove()
3401 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_remove()
3402 mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */ in dw_mci_remove()
3405 mci_writel(host, CLKENA, 0); in dw_mci_remove()
3406 mci_writel(host, CLKSRC, 0); in dw_mci_remove()
3408 if (host->use_dma && host->dma_ops->exit) in dw_mci_remove()
3409 host->dma_ops->exit(host); in dw_mci_remove()
3411 if (!IS_ERR(host->pdata->rstc)) in dw_mci_remove()
3412 reset_control_assert(host->pdata->rstc); in dw_mci_remove()
3414 clk_disable_unprepare(host->ciu_clk); in dw_mci_remove()
3415 clk_disable_unprepare(host->biu_clk); in dw_mci_remove()
3424 struct dw_mci *host = dev_get_drvdata(dev); in dw_mci_runtime_suspend() local
3426 if (host->use_dma && host->dma_ops->exit) in dw_mci_runtime_suspend()
3427 host->dma_ops->exit(host); in dw_mci_runtime_suspend()
3429 clk_disable_unprepare(host->ciu_clk); in dw_mci_runtime_suspend()
3431 if (host->slot && in dw_mci_runtime_suspend()
3432 (mmc_can_gpio_cd(host->slot->mmc) || in dw_mci_runtime_suspend()
3433 !mmc_card_is_removable(host->slot->mmc))) in dw_mci_runtime_suspend()
3434 clk_disable_unprepare(host->biu_clk); in dw_mci_runtime_suspend()
3443 struct dw_mci *host = dev_get_drvdata(dev); in dw_mci_runtime_resume() local
3445 if (host->slot && in dw_mci_runtime_resume()
3446 (mmc_can_gpio_cd(host->slot->mmc) || in dw_mci_runtime_resume()
3447 !mmc_card_is_removable(host->slot->mmc))) { in dw_mci_runtime_resume()
3448 ret = clk_prepare_enable(host->biu_clk); in dw_mci_runtime_resume()
3453 ret = clk_prepare_enable(host->ciu_clk); in dw_mci_runtime_resume()
3457 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_ALL_RESET_FLAGS)) { in dw_mci_runtime_resume()
3458 clk_disable_unprepare(host->ciu_clk); in dw_mci_runtime_resume()
3463 if (host->use_dma && host->dma_ops->init) in dw_mci_runtime_resume()
3464 host->dma_ops->init(host); in dw_mci_runtime_resume()
3470 mci_writel(host, FIFOTH, host->fifoth_val); in dw_mci_runtime_resume()
3471 host->prev_blksz = 0; in dw_mci_runtime_resume()
3474 mci_writel(host, TMOUT, 0xFFFFFFFF); in dw_mci_runtime_resume()
3476 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_runtime_resume()
3477 mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | in dw_mci_runtime_resume()
3480 mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); in dw_mci_runtime_resume()
3483 if (host->slot->mmc->pm_flags & MMC_PM_KEEP_POWER) in dw_mci_runtime_resume()
3484 dw_mci_set_ios(host->slot->mmc, &host->slot->mmc->ios); in dw_mci_runtime_resume()
3487 dw_mci_setup_bus(host->slot, true); in dw_mci_runtime_resume()
3490 if (sdio_irq_claimed(host->slot->mmc)) in dw_mci_runtime_resume()
3491 __dw_mci_enable_sdio_irq(host->slot, 1); in dw_mci_runtime_resume()
3494 dw_mci_enable_cd(host); in dw_mci_runtime_resume()
3499 if (host->slot && in dw_mci_runtime_resume()
3500 (mmc_can_gpio_cd(host->slot->mmc) || in dw_mci_runtime_resume()
3501 !mmc_card_is_removable(host->slot->mmc))) in dw_mci_runtime_resume()
3502 clk_disable_unprepare(host->biu_clk); in dw_mci_runtime_resume()