Lines Matching full:host
30 #include <linux/mmc/host.h>
137 spin_lock_bh(&slot->host->lock); in dw_mci_req_show()
163 spin_unlock_bh(&slot->host->lock); in dw_mci_req_show()
171 struct dw_mci *host = s->private; in dw_mci_regs_show() local
173 pm_runtime_get_sync(host->dev); in dw_mci_regs_show()
175 seq_printf(s, "STATUS:\t0x%08x\n", mci_readl(host, STATUS)); in dw_mci_regs_show()
176 seq_printf(s, "RINTSTS:\t0x%08x\n", mci_readl(host, RINTSTS)); in dw_mci_regs_show()
177 seq_printf(s, "CMD:\t0x%08x\n", mci_readl(host, CMD)); in dw_mci_regs_show()
178 seq_printf(s, "CTRL:\t0x%08x\n", mci_readl(host, CTRL)); in dw_mci_regs_show()
179 seq_printf(s, "INTMASK:\t0x%08x\n", mci_readl(host, INTMASK)); in dw_mci_regs_show()
180 seq_printf(s, "CLKENA:\t0x%08x\n", mci_readl(host, CLKENA)); in dw_mci_regs_show()
182 pm_runtime_put_autosuspend(host->dev); in dw_mci_regs_show()
191 struct dw_mci *host = slot->host; in dw_mci_init_debugfs() local
198 debugfs_create_file("regs", S_IRUSR, root, host, &dw_mci_regs_fops); in dw_mci_init_debugfs()
200 debugfs_create_u32("state", S_IRUSR, root, &host->state); in dw_mci_init_debugfs()
202 &host->pending_events); in dw_mci_init_debugfs()
204 &host->completed_events); in dw_mci_init_debugfs()
208 static bool dw_mci_ctrl_reset(struct dw_mci *host, u32 reset) in dw_mci_ctrl_reset() argument
212 ctrl = mci_readl(host, CTRL); in dw_mci_ctrl_reset()
214 mci_writel(host, CTRL, ctrl); in dw_mci_ctrl_reset()
217 if (readl_poll_timeout_atomic(host->regs + SDMMC_CTRL, ctrl, in dw_mci_ctrl_reset()
220 dev_err(host->dev, in dw_mci_ctrl_reset()
229 static void dw_mci_wait_while_busy(struct dw_mci *host, u32 cmd_flags) in dw_mci_wait_while_busy() argument
243 if (host->slot->mmc->caps2 & MMC_CAP2_NO_SD && in dw_mci_wait_while_busy()
244 host->slot->mmc->caps2 & MMC_CAP2_NO_SDIO) in dw_mci_wait_while_busy()
249 if (readl_poll_timeout_atomic(host->regs + SDMMC_STATUS, in dw_mci_wait_while_busy()
253 dev_err(host->dev, "Busy; trying anyway\n"); in dw_mci_wait_while_busy()
259 struct dw_mci *host = slot->host; in mci_send_cmd() local
262 mci_writel(host, CMDARG, arg); in mci_send_cmd()
264 dw_mci_wait_while_busy(host, cmd); in mci_send_cmd()
265 mci_writel(host, CMD, SDMMC_CMD_START | cmd); in mci_send_cmd()
267 if (readl_poll_timeout_atomic(host->regs + SDMMC_CMD, cmd_status, in mci_send_cmd()
278 struct dw_mci *host = slot->host; in dw_mci_prepare_command() local
300 WARN_ON(slot->host->state != STATE_SENDING_CMD); in dw_mci_prepare_command()
301 slot->host->state = STATE_SENDING_CMD11; in dw_mci_prepare_command()
314 clk_en_a = mci_readl(host, CLKENA); in dw_mci_prepare_command()
316 mci_writel(host, CLKENA, clk_en_a); in dw_mci_prepare_command()
343 static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd) in dw_mci_prep_stop_abort() argument
351 stop = &host->stop_abort; in dw_mci_prep_stop_abort()
376 if (!test_bit(DW_MMC_CARD_NO_USE_HOLD, &host->slot->flags)) in dw_mci_prep_stop_abort()
382 static inline void dw_mci_set_cto(struct dw_mci *host) in dw_mci_set_cto() argument
389 cto_clks = mci_readl(host, TMOUT) & 0xff; in dw_mci_set_cto()
390 cto_div = (mci_readl(host, CLKDIV) & 0xff) * 2; in dw_mci_set_cto()
395 host->bus_hz); in dw_mci_set_cto()
413 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_set_cto()
414 if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) in dw_mci_set_cto()
415 mod_timer(&host->cto_timer, in dw_mci_set_cto()
417 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_set_cto()
420 static void dw_mci_start_command(struct dw_mci *host, in dw_mci_start_command() argument
423 host->cmd = cmd; in dw_mci_start_command()
424 dev_vdbg(host->dev, in dw_mci_start_command()
428 mci_writel(host, CMDARG, cmd->arg); in dw_mci_start_command()
430 dw_mci_wait_while_busy(host, cmd_flags); in dw_mci_start_command()
432 mci_writel(host, CMD, cmd_flags | SDMMC_CMD_START); in dw_mci_start_command()
436 dw_mci_set_cto(host); in dw_mci_start_command()
439 static inline void send_stop_abort(struct dw_mci *host, struct mmc_data *data) in send_stop_abort() argument
441 struct mmc_command *stop = &host->stop_abort; in send_stop_abort()
443 dw_mci_start_command(host, stop, host->stop_cmdr); in send_stop_abort()
447 static void dw_mci_stop_dma(struct dw_mci *host) in dw_mci_stop_dma() argument
449 if (host->using_dma) { in dw_mci_stop_dma()
450 host->dma_ops->stop(host); in dw_mci_stop_dma()
451 host->dma_ops->cleanup(host); in dw_mci_stop_dma()
455 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_stop_dma()
458 static void dw_mci_dma_cleanup(struct dw_mci *host) in dw_mci_dma_cleanup() argument
460 struct mmc_data *data = host->data; in dw_mci_dma_cleanup()
463 dma_unmap_sg(host->dev, in dw_mci_dma_cleanup()
471 static void dw_mci_idmac_reset(struct dw_mci *host) in dw_mci_idmac_reset() argument
473 u32 bmod = mci_readl(host, BMOD); in dw_mci_idmac_reset()
476 mci_writel(host, BMOD, bmod); in dw_mci_idmac_reset()
479 static void dw_mci_idmac_stop_dma(struct dw_mci *host) in dw_mci_idmac_stop_dma() argument
484 temp = mci_readl(host, CTRL); in dw_mci_idmac_stop_dma()
485 if (!host->is_rv1106_sd) in dw_mci_idmac_stop_dma()
489 mci_writel(host, CTRL, temp); in dw_mci_idmac_stop_dma()
492 temp = mci_readl(host, BMOD); in dw_mci_idmac_stop_dma()
493 if (host->is_rv1106_sd) { in dw_mci_idmac_stop_dma()
499 mci_writel(host, BMOD, temp); in dw_mci_idmac_stop_dma()
504 struct dw_mci *host = arg; in dw_mci_dmac_complete_dma() local
505 struct mmc_data *data = host->data; in dw_mci_dmac_complete_dma()
507 dev_vdbg(host->dev, "DMA complete\n"); in dw_mci_dmac_complete_dma()
509 if ((host->use_dma == TRANS_MODE_EDMAC) && in dw_mci_dmac_complete_dma()
512 dma_sync_sg_for_cpu(mmc_dev(host->slot->mmc), in dw_mci_dmac_complete_dma()
517 host->dma_ops->cleanup(host); in dw_mci_dmac_complete_dma()
524 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_dmac_complete_dma()
525 tasklet_schedule(&host->tasklet); in dw_mci_dmac_complete_dma()
528 if (host->need_xfer_timer && in dw_mci_dmac_complete_dma()
529 host->dir_status == DW_MCI_RECV_STATUS) in dw_mci_dmac_complete_dma()
530 del_timer(&host->xfer_timer); in dw_mci_dmac_complete_dma()
533 static int dw_mci_idmac_init(struct dw_mci *host) in dw_mci_idmac_init() argument
537 if (host->dma_64bit_address == 1) { in dw_mci_idmac_init()
540 host->ring_size = in dw_mci_idmac_init()
544 for (i = 0, p = host->sg_cpu; i < host->ring_size - 1; in dw_mci_idmac_init()
546 p->des6 = (host->sg_dma + in dw_mci_idmac_init()
550 p->des7 = (u64)(host->sg_dma + in dw_mci_idmac_init()
561 p->des6 = host->sg_dma & 0xffffffff; in dw_mci_idmac_init()
562 p->des7 = (u64)host->sg_dma >> 32; in dw_mci_idmac_init()
568 host->ring_size = in dw_mci_idmac_init()
572 for (i = 0, p = host->sg_cpu; in dw_mci_idmac_init()
573 i < host->ring_size - 1; in dw_mci_idmac_init()
575 p->des3 = cpu_to_le32(host->sg_dma + in dw_mci_idmac_init()
582 p->des3 = cpu_to_le32(host->sg_dma); in dw_mci_idmac_init()
586 dw_mci_idmac_reset(host); in dw_mci_idmac_init()
588 if (host->dma_64bit_address == 1) { in dw_mci_idmac_init()
590 mci_writel(host, IDSTS64, IDMAC_INT_CLR); in dw_mci_idmac_init()
591 mci_writel(host, IDINTEN64, SDMMC_IDMAC_INT_NI | in dw_mci_idmac_init()
595 mci_writel(host, DBADDRL, host->sg_dma & 0xffffffff); in dw_mci_idmac_init()
596 mci_writel(host, DBADDRU, (u64)host->sg_dma >> 32); in dw_mci_idmac_init()
600 mci_writel(host, IDSTS, IDMAC_INT_CLR); in dw_mci_idmac_init()
601 mci_writel(host, IDINTEN, SDMMC_IDMAC_INT_NI | in dw_mci_idmac_init()
605 mci_writel(host, DBADDR, host->sg_dma); in dw_mci_idmac_init()
611 static inline int dw_mci_prepare_desc64(struct dw_mci *host, in dw_mci_prepare_desc64() argument
620 desc_first = desc_last = desc = host->sg_cpu; in dw_mci_prepare_desc64()
676 dev_dbg(host->dev, "descriptor is still owned by IDMAC.\n"); in dw_mci_prepare_desc64()
677 memset(host->sg_cpu, 0, DESC_RING_BUF_SZ); in dw_mci_prepare_desc64()
678 dw_mci_idmac_init(host); in dw_mci_prepare_desc64()
683 static inline int dw_mci_prepare_desc32(struct dw_mci *host, in dw_mci_prepare_desc32() argument
692 desc_first = desc_last = desc = host->sg_cpu; in dw_mci_prepare_desc32()
739 if (host->is_rv1106_sd && (data->flags & MMC_DATA_WRITE)) { in dw_mci_prepare_desc32()
757 dev_dbg(host->dev, "descriptor is still owned by IDMAC.\n"); in dw_mci_prepare_desc32()
758 memset(host->sg_cpu, 0, DESC_RING_BUF_SZ); in dw_mci_prepare_desc32()
759 dw_mci_idmac_init(host); in dw_mci_prepare_desc32()
763 static int dw_mci_idmac_start_dma(struct dw_mci *host, unsigned int sg_len) in dw_mci_idmac_start_dma() argument
768 if (host->dma_64bit_address == 1) in dw_mci_idmac_start_dma()
769 ret = dw_mci_prepare_desc64(host, host->data, sg_len); in dw_mci_idmac_start_dma()
771 ret = dw_mci_prepare_desc32(host, host->data, sg_len); in dw_mci_idmac_start_dma()
780 dw_mci_ctrl_reset(host, SDMMC_CTRL_DMA_RESET); in dw_mci_idmac_start_dma()
781 dw_mci_idmac_reset(host); in dw_mci_idmac_start_dma()
784 temp = mci_readl(host, CTRL); in dw_mci_idmac_start_dma()
786 mci_writel(host, CTRL, temp); in dw_mci_idmac_start_dma()
792 temp = mci_readl(host, BMOD); in dw_mci_idmac_start_dma()
794 mci_writel(host, BMOD, temp); in dw_mci_idmac_start_dma()
797 mci_writel(host, PLDMND, 1); in dw_mci_idmac_start_dma()
811 static void dw_mci_edmac_stop_dma(struct dw_mci *host) in dw_mci_edmac_stop_dma() argument
813 dmaengine_terminate_async(host->dms->ch); in dw_mci_edmac_stop_dma()
816 static int dw_mci_edmac_start_dma(struct dw_mci *host, in dw_mci_edmac_start_dma() argument
821 struct scatterlist *sgl = host->data->sg; in dw_mci_edmac_start_dma()
823 u32 sg_elems = host->data->sg_len; in dw_mci_edmac_start_dma()
825 u32 fifo_offset = host->fifo_reg - host->regs; in dw_mci_edmac_start_dma()
830 cfg.dst_addr = host->phy_regs + fifo_offset; in dw_mci_edmac_start_dma()
836 fifoth_val = mci_readl(host, FIFOTH); in dw_mci_edmac_start_dma()
840 if (host->data->flags & MMC_DATA_WRITE) in dw_mci_edmac_start_dma()
845 ret = dmaengine_slave_config(host->dms->ch, &cfg); in dw_mci_edmac_start_dma()
847 dev_err(host->dev, "Failed to config edmac.\n"); in dw_mci_edmac_start_dma()
851 desc = dmaengine_prep_slave_sg(host->dms->ch, sgl, in dw_mci_edmac_start_dma()
855 dev_err(host->dev, "Can't prepare slave sg.\n"); in dw_mci_edmac_start_dma()
861 desc->callback_param = (void *)host; in dw_mci_edmac_start_dma()
865 if (host->data->flags & MMC_DATA_WRITE) in dw_mci_edmac_start_dma()
866 dma_sync_sg_for_device(mmc_dev(host->slot->mmc), sgl, in dw_mci_edmac_start_dma()
869 dma_async_issue_pending(host->dms->ch); in dw_mci_edmac_start_dma()
874 static int dw_mci_edmac_init(struct dw_mci *host) in dw_mci_edmac_init() argument
877 host->dms = kzalloc(sizeof(struct dw_mci_dma_slave), GFP_KERNEL); in dw_mci_edmac_init()
878 if (!host->dms) in dw_mci_edmac_init()
881 host->dms->ch = dma_request_chan(host->dev, "rx-tx"); in dw_mci_edmac_init()
882 if (IS_ERR(host->dms->ch)) { in dw_mci_edmac_init()
883 int ret = PTR_ERR(host->dms->ch); in dw_mci_edmac_init()
885 dev_err(host->dev, "Failed to get external DMA channel.\n"); in dw_mci_edmac_init()
886 kfree(host->dms); in dw_mci_edmac_init()
887 host->dms = NULL; in dw_mci_edmac_init()
894 static void dw_mci_edmac_exit(struct dw_mci *host) in dw_mci_edmac_exit() argument
896 if (host->dms) { in dw_mci_edmac_exit()
897 if (host->dms->ch) { in dw_mci_edmac_exit()
898 dma_release_channel(host->dms->ch); in dw_mci_edmac_exit()
899 host->dms->ch = NULL; in dw_mci_edmac_exit()
901 kfree(host->dms); in dw_mci_edmac_exit()
902 host->dms = NULL; in dw_mci_edmac_exit()
915 static int dw_mci_pre_dma_transfer(struct dw_mci *host, in dw_mci_pre_dma_transfer() argument
930 if (data->blocks * data->blksz < DW_MCI_DMA_THRESHOLD && !host->is_rv1106_sd) in dw_mci_pre_dma_transfer()
941 sg_len = dma_map_sg(host->dev, in dw_mci_pre_dma_transfer()
959 if (!slot->host->use_dma || !data) in dw_mci_pre_req()
965 if (dw_mci_pre_dma_transfer(slot->host, mrq->data, in dw_mci_pre_req()
977 if (!slot->host->use_dma || !data) in dw_mci_post_req()
981 dma_unmap_sg(slot->host->dev, in dw_mci_post_req()
992 struct dw_mci *host = slot->host; in dw_mci_get_cd() local
1015 present = (mci_readl(slot->host, CDETECT) & (1 << slot->id)) in dw_mci_get_cd()
1018 spin_lock_bh(&host->lock); in dw_mci_get_cd()
1024 spin_unlock_bh(&host->lock); in dw_mci_get_cd()
1029 static void dw_mci_adjust_fifoth(struct dw_mci *host, struct mmc_data *data) in dw_mci_adjust_fifoth() argument
1033 u32 fifo_width = 1 << host->data_shift; in dw_mci_adjust_fifoth()
1039 if (!host->use_dma) in dw_mci_adjust_fifoth()
1042 tx_wmark = (host->fifo_depth) / 2; in dw_mci_adjust_fifoth()
1043 tx_wmark_invers = host->fifo_depth - tx_wmark; in dw_mci_adjust_fifoth()
1066 mci_writel(host, FIFOTH, fifoth_val); in dw_mci_adjust_fifoth()
1069 static void dw_mci_ctrl_thld(struct dw_mci *host, struct mmc_data *data) in dw_mci_ctrl_thld() argument
1080 if (host->verid < DW_MMC_240A || in dw_mci_ctrl_thld()
1081 (host->verid < DW_MMC_280A && data->flags & MMC_DATA_WRITE)) in dw_mci_ctrl_thld()
1089 host->timing != MMC_TIMING_MMC_HS400) in dw_mci_ctrl_thld()
1097 if (host->timing != MMC_TIMING_MMC_HS200 && in dw_mci_ctrl_thld()
1098 host->timing != MMC_TIMING_UHS_SDR104 && in dw_mci_ctrl_thld()
1099 host->timing != MMC_TIMING_MMC_HS400) in dw_mci_ctrl_thld()
1102 blksz_depth = blksz / (1 << host->data_shift); in dw_mci_ctrl_thld()
1103 fifo_depth = host->fifo_depth; in dw_mci_ctrl_thld()
1114 mci_writel(host, CDTHRCTL, SDMMC_SET_THLD(thld_size, enable)); in dw_mci_ctrl_thld()
1118 mci_writel(host, CDTHRCTL, 0); in dw_mci_ctrl_thld()
1121 static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data) in dw_mci_submit_data_dma() argument
1127 host->using_dma = 0; in dw_mci_submit_data_dma()
1130 if (!host->use_dma) in dw_mci_submit_data_dma()
1133 sg_len = dw_mci_pre_dma_transfer(host, data, COOKIE_MAPPED); in dw_mci_submit_data_dma()
1135 host->dma_ops->stop(host); in dw_mci_submit_data_dma()
1139 host->using_dma = 1; in dw_mci_submit_data_dma()
1141 if (host->use_dma == TRANS_MODE_IDMAC) in dw_mci_submit_data_dma()
1142 dev_vdbg(host->dev, in dw_mci_submit_data_dma()
1144 (unsigned long)host->sg_cpu, in dw_mci_submit_data_dma()
1145 (unsigned long)host->sg_dma, in dw_mci_submit_data_dma()
1153 if (host->prev_blksz != data->blksz) in dw_mci_submit_data_dma()
1154 dw_mci_adjust_fifoth(host, data); in dw_mci_submit_data_dma()
1157 temp = mci_readl(host, CTRL); in dw_mci_submit_data_dma()
1159 mci_writel(host, CTRL, temp); in dw_mci_submit_data_dma()
1162 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_submit_data_dma()
1163 temp = mci_readl(host, INTMASK); in dw_mci_submit_data_dma()
1165 mci_writel(host, INTMASK, temp); in dw_mci_submit_data_dma()
1166 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_submit_data_dma()
1168 if (host->dma_ops->start(host, sg_len)) { in dw_mci_submit_data_dma()
1169 host->dma_ops->stop(host); in dw_mci_submit_data_dma()
1171 dev_dbg(host->dev, in dw_mci_submit_data_dma()
1180 static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data) in dw_mci_submit_data() argument
1188 WARN_ON(host->data); in dw_mci_submit_data()
1189 host->sg = NULL; in dw_mci_submit_data()
1190 host->data = data; in dw_mci_submit_data()
1193 host->dir_status = DW_MCI_RECV_STATUS; in dw_mci_submit_data()
1195 host->dir_status = DW_MCI_SEND_STATUS; in dw_mci_submit_data()
1197 dw_mci_ctrl_thld(host, data); in dw_mci_submit_data()
1199 if (dw_mci_submit_data_dma(host, data)) { in dw_mci_submit_data()
1200 if (host->data->flags & MMC_DATA_READ) in dw_mci_submit_data()
1205 sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags); in dw_mci_submit_data()
1206 host->sg = data->sg; in dw_mci_submit_data()
1207 host->part_buf_start = 0; in dw_mci_submit_data()
1208 host->part_buf_count = 0; in dw_mci_submit_data()
1210 mci_writel(host, RINTSTS, SDMMC_INT_TXDR | SDMMC_INT_RXDR); in dw_mci_submit_data()
1212 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_submit_data()
1213 temp = mci_readl(host, INTMASK); in dw_mci_submit_data()
1215 mci_writel(host, INTMASK, temp); in dw_mci_submit_data()
1216 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_submit_data()
1218 temp = mci_readl(host, CTRL); in dw_mci_submit_data()
1220 mci_writel(host, CTRL, temp); in dw_mci_submit_data()
1228 if (host->wm_aligned) in dw_mci_submit_data()
1229 dw_mci_adjust_fifoth(host, data); in dw_mci_submit_data()
1231 mci_writel(host, FIFOTH, host->fifoth_val); in dw_mci_submit_data()
1232 host->prev_blksz = 0; in dw_mci_submit_data()
1239 host->prev_blksz = data->blksz; in dw_mci_submit_data()
1245 struct dw_mci *host = slot->host; in dw_mci_setup_bus() local
1252 if (host->state == STATE_WAITING_CMD11_DONE) in dw_mci_setup_bus()
1258 mci_writel(host, CLKENA, 0); in dw_mci_setup_bus()
1260 } else if (clock != host->current_speed || force_clkinit) { in dw_mci_setup_bus()
1261 div = host->bus_hz / clock; in dw_mci_setup_bus()
1262 if (host->bus_hz % clock && host->bus_hz > clock) in dw_mci_setup_bus()
1269 div = (host->bus_hz != clock) ? DIV_ROUND_UP(div, 2) : 0; in dw_mci_setup_bus()
1278 slot->id, host->bus_hz, clock, in dw_mci_setup_bus()
1279 div ? ((host->bus_hz / div) >> 1) : in dw_mci_setup_bus()
1280 host->bus_hz, div); in dw_mci_setup_bus()
1292 mci_writel(host, CLKENA, 0); in dw_mci_setup_bus()
1293 mci_writel(host, CLKSRC, 0); in dw_mci_setup_bus()
1299 mci_writel(host, CLKDIV, div); in dw_mci_setup_bus()
1308 mci_writel(host, CLKENA, clk_en_a); in dw_mci_setup_bus()
1315 slot->mmc->actual_clock = div ? ((host->bus_hz / div) >> 1) : in dw_mci_setup_bus()
1316 host->bus_hz; in dw_mci_setup_bus()
1319 host->current_speed = clock; in dw_mci_setup_bus()
1322 mci_writel(host, CTYPE, (slot->ctype << slot->id)); in dw_mci_setup_bus()
1325 static void __dw_mci_start_request(struct dw_mci *host, in __dw_mci_start_request() argument
1335 host->mrq = mrq; in __dw_mci_start_request()
1337 host->pending_events = 0; in __dw_mci_start_request()
1338 host->completed_events = 0; in __dw_mci_start_request()
1339 host->cmd_status = 0; in __dw_mci_start_request()
1340 host->data_status = 0; in __dw_mci_start_request()
1341 host->dir_status = 0; in __dw_mci_start_request()
1343 if (host->is_rv1106_sd) in __dw_mci_start_request()
1344 mci_writel(host, CTYPE, (slot->ctype << slot->id)); in __dw_mci_start_request()
1348 mci_writel(host, TMOUT, 0xFFFFFFFF); in __dw_mci_start_request()
1349 if (host->is_rv1106_sd && (data->flags & MMC_DATA_WRITE)) in __dw_mci_start_request()
1350 mci_writel(host, BYTCNT, 0); in __dw_mci_start_request()
1352 mci_writel(host, BYTCNT, data->blksz*data->blocks); in __dw_mci_start_request()
1353 mci_writel(host, BLKSIZ, data->blksz); in __dw_mci_start_request()
1363 dw_mci_submit_data(host, data); in __dw_mci_start_request()
1367 dw_mci_start_command(host, cmd, cmdflags); in __dw_mci_start_request()
1382 spin_lock_irqsave(&host->irq_lock, irqflags); in __dw_mci_start_request()
1383 if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) in __dw_mci_start_request()
1384 mod_timer(&host->cmd11_timer, in __dw_mci_start_request()
1386 spin_unlock_irqrestore(&host->irq_lock, irqflags); in __dw_mci_start_request()
1389 host->stop_cmdr = dw_mci_prep_stop_abort(host, cmd); in __dw_mci_start_request()
1392 static void dw_mci_start_request(struct dw_mci *host, in dw_mci_start_request() argument
1399 __dw_mci_start_request(host, slot, cmd); in dw_mci_start_request()
1402 /* must be called with host->lock held */
1403 static void dw_mci_queue_request(struct dw_mci *host, struct dw_mci_slot *slot, in dw_mci_queue_request() argument
1407 host->state); in dw_mci_queue_request()
1411 if (host->state == STATE_WAITING_CMD11_DONE) { in dw_mci_queue_request()
1419 host->state = STATE_IDLE; in dw_mci_queue_request()
1422 if (host->state == STATE_IDLE) { in dw_mci_queue_request()
1423 host->state = STATE_SENDING_CMD; in dw_mci_queue_request()
1424 dw_mci_start_request(host, slot); in dw_mci_queue_request()
1426 list_add_tail(&slot->queue_node, &host->queue); in dw_mci_queue_request()
1430 static bool dw_mci_reset(struct dw_mci *host);
1434 struct dw_mci *host = slot->host; in dw_mci_request() local
1450 if (host->is_rv1106_sd) { in dw_mci_request()
1453 readl_poll_timeout(host->regs + SDMMC_STATUS, reg, in dw_mci_request()
1457 spin_lock_bh(&host->lock); in dw_mci_request()
1459 if (host->is_rv1106_sd) in dw_mci_request()
1460 dw_mci_reset(host); in dw_mci_request()
1462 dw_mci_queue_request(host, slot, mrq); in dw_mci_request()
1464 spin_unlock_bh(&host->lock); in dw_mci_request()
1470 const struct dw_mci_drv_data *drv_data = slot->host->drv_data; in dw_mci_set_ios()
1486 regs = mci_readl(slot->host, UHS_REG); in dw_mci_set_ios()
1496 mci_writel(slot->host, UHS_REG, regs); in dw_mci_set_ios()
1497 slot->host->timing = ios->timing; in dw_mci_set_ios()
1506 drv_data->set_ios(slot->host, ios); in dw_mci_set_ios()
1510 if (!IS_ERR_OR_NULL(slot->host->pinctrl)) in dw_mci_set_ios()
1511 pinctrl_select_state(slot->host->pinctrl, slot->host->idle_state); in dw_mci_set_ios()
1517 dev_err(slot->host->dev, in dw_mci_set_ios()
1524 regs = mci_readl(slot->host, PWREN); in dw_mci_set_ios()
1526 mci_writel(slot->host, PWREN, regs); in dw_mci_set_ios()
1529 if (!IS_ERR_OR_NULL(slot->host->pinctrl)) in dw_mci_set_ios()
1530 pinctrl_select_state(slot->host->pinctrl, slot->host->normal_state); in dw_mci_set_ios()
1532 if (!slot->host->vqmmc_enabled) { in dw_mci_set_ios()
1536 dev_err(slot->host->dev, in dw_mci_set_ios()
1539 slot->host->vqmmc_enabled = true; in dw_mci_set_ios()
1543 slot->host->vqmmc_enabled = true; in dw_mci_set_ios()
1547 dw_mci_ctrl_reset(slot->host, in dw_mci_set_ios()
1556 if (!IS_ERR_OR_NULL(slot->host->pinctrl)) in dw_mci_set_ios()
1557 pinctrl_select_state(slot->host->pinctrl, slot->host->idle_state); in dw_mci_set_ios()
1565 if (!IS_ERR(mmc->supply.vqmmc) && slot->host->vqmmc_enabled) in dw_mci_set_ios()
1567 slot->host->vqmmc_enabled = false; in dw_mci_set_ios()
1569 regs = mci_readl(slot->host, PWREN); in dw_mci_set_ios()
1571 mci_writel(slot->host, PWREN, regs); in dw_mci_set_ios()
1577 if (slot->host->state == STATE_WAITING_CMD11_DONE && ios->clock != 0) in dw_mci_set_ios()
1578 slot->host->state = STATE_IDLE; in dw_mci_set_ios()
1590 status = mci_readl(slot->host, STATUS); in dw_mci_card_busy()
1598 struct dw_mci *host = slot->host; in dw_mci_switch_voltage() local
1599 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_switch_voltage()
1612 uhs = mci_readl(host, UHS_REG); in dw_mci_switch_voltage()
1627 mci_writel(host, UHS_REG, uhs); in dw_mci_switch_voltage()
1643 mci_readl(slot->host, WRTPRT) & (1 << slot->id) ? 1 : 0; in dw_mci_get_ro()
1654 struct dw_mci *host = slot->host; in dw_mci_hw_reset() local
1657 if (host->use_dma == TRANS_MODE_IDMAC) in dw_mci_hw_reset()
1658 dw_mci_idmac_reset(host); in dw_mci_hw_reset()
1660 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_DMA_RESET | in dw_mci_hw_reset()
1670 reset = mci_readl(host, RST_N); in dw_mci_hw_reset()
1672 mci_writel(host, RST_N, reset); in dw_mci_hw_reset()
1675 mci_writel(host, RST_N, reset); in dw_mci_hw_reset()
1682 struct dw_mci *host = slot->host; in dw_mci_init_card() local
1694 clk_en_a_old = mci_readl(host, CLKENA); in dw_mci_init_card()
1706 mci_writel(host, CLKENA, clk_en_a); in dw_mci_init_card()
1715 struct dw_mci *host = slot->host; in __dw_mci_enable_sdio_irq() local
1719 spin_lock_irqsave(&host->irq_lock, irqflags); in __dw_mci_enable_sdio_irq()
1722 int_mask = mci_readl(host, INTMASK); in __dw_mci_enable_sdio_irq()
1727 mci_writel(host, INTMASK, int_mask); in __dw_mci_enable_sdio_irq()
1729 spin_unlock_irqrestore(&host->irq_lock, irqflags); in __dw_mci_enable_sdio_irq()
1735 struct dw_mci *host = slot->host; in dw_mci_enable_sdio_irq() local
1741 pm_runtime_get_noresume(host->dev); in dw_mci_enable_sdio_irq()
1743 pm_runtime_put_noidle(host->dev); in dw_mci_enable_sdio_irq()
1756 struct dw_mci *host = slot->host; in dw_mci_execute_tuning() local
1757 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_execute_tuning()
1769 struct dw_mci *host = slot->host; in dw_mci_prepare_hs400_tuning() local
1770 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_prepare_hs400_tuning()
1773 return drv_data->prepare_hs400_tuning(host, ios); in dw_mci_prepare_hs400_tuning()
1778 static bool dw_mci_reset(struct dw_mci *host) in dw_mci_reset() argument
1788 if (host->sg) { in dw_mci_reset()
1789 sg_miter_stop(&host->sg_miter); in dw_mci_reset()
1790 host->sg = NULL; in dw_mci_reset()
1793 if (host->use_dma) in dw_mci_reset()
1796 if (dw_mci_ctrl_reset(host, flags)) { in dw_mci_reset()
1801 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_reset()
1803 if (!host->use_dma) { in dw_mci_reset()
1809 if (readl_poll_timeout_atomic(host->regs + SDMMC_STATUS, in dw_mci_reset()
1813 dev_err(host->dev, in dw_mci_reset()
1820 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_FIFO_RESET)) in dw_mci_reset()
1824 if (!(mci_readl(host, CTRL) & SDMMC_CTRL_RESET)) { in dw_mci_reset()
1825 dev_err(host->dev, in dw_mci_reset()
1832 if (host->use_dma == TRANS_MODE_IDMAC) in dw_mci_reset()
1834 dw_mci_idmac_init(host); in dw_mci_reset()
1840 mci_send_cmd(host->slot, SDMMC_CMD_UPD_CLK, 0); in dw_mci_reset()
1862 static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq) in dw_mci_request_end() argument
1863 __releases(&host->lock) in dw_mci_request_end()
1864 __acquires(&host->lock) in dw_mci_request_end()
1867 struct mmc_host *prev_mmc = host->slot->mmc; in dw_mci_request_end()
1869 WARN_ON(host->cmd || host->data); in dw_mci_request_end()
1871 host->slot->mrq = NULL; in dw_mci_request_end()
1872 host->mrq = NULL; in dw_mci_request_end()
1873 if (!list_empty(&host->queue)) { in dw_mci_request_end()
1874 slot = list_entry(host->queue.next, in dw_mci_request_end()
1877 dev_vdbg(host->dev, "list not empty: %s is next\n", in dw_mci_request_end()
1879 host->state = STATE_SENDING_CMD; in dw_mci_request_end()
1880 dw_mci_start_request(host, slot); in dw_mci_request_end()
1882 dev_vdbg(host->dev, "list empty\n"); in dw_mci_request_end()
1884 if (host->state == STATE_SENDING_CMD11) in dw_mci_request_end()
1885 host->state = STATE_WAITING_CMD11_DONE; in dw_mci_request_end()
1887 host->state = STATE_IDLE; in dw_mci_request_end()
1890 spin_unlock(&host->lock); in dw_mci_request_end()
1893 spin_lock(&host->lock); in dw_mci_request_end()
1896 static int dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd) in dw_mci_command_complete() argument
1898 u32 status = host->cmd_status; in dw_mci_command_complete()
1900 host->cmd_status = 0; in dw_mci_command_complete()
1905 cmd->resp[3] = mci_readl(host, RESP0); in dw_mci_command_complete()
1906 cmd->resp[2] = mci_readl(host, RESP1); in dw_mci_command_complete()
1907 cmd->resp[1] = mci_readl(host, RESP2); in dw_mci_command_complete()
1908 cmd->resp[0] = mci_readl(host, RESP3); in dw_mci_command_complete()
1910 cmd->resp[0] = mci_readl(host, RESP0); in dw_mci_command_complete()
1929 static int dw_mci_data_complete(struct dw_mci *host, struct mmc_data *data) in dw_mci_data_complete() argument
1931 u32 status = host->data_status; in dw_mci_data_complete()
1933 if (host->is_rv1106_sd && (data->flags & MMC_DATA_WRITE) && (status & SDMMC_INT_DATA_OVER)) in dw_mci_data_complete()
1942 if (host->dir_status == in dw_mci_data_complete()
1951 } else if (host->dir_status == in dw_mci_data_complete()
1960 dev_dbg(host->dev, "data error, status 0x%08x\n", status); in dw_mci_data_complete()
1966 dw_mci_reset(host); in dw_mci_data_complete()
1976 static void dw_mci_set_drto(struct dw_mci *host) in dw_mci_set_drto() argument
1983 drto_clks = mci_readl(host, TMOUT) >> 8; in dw_mci_set_drto()
1984 drto_div = (mci_readl(host, CLKDIV) & 0xff) * 2; in dw_mci_set_drto()
1989 host->bus_hz); in dw_mci_set_drto()
1994 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_set_drto()
1995 if (!test_bit(EVENT_DATA_COMPLETE, &host->pending_events)) in dw_mci_set_drto()
1996 mod_timer(&host->dto_timer, in dw_mci_set_drto()
1998 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_set_drto()
2001 static void dw_mci_set_xfer_timeout(struct dw_mci *host) in dw_mci_set_xfer_timeout() argument
2008 xfer_clks = mci_readl(host, TMOUT) >> 8; in dw_mci_set_xfer_timeout()
2009 xfer_div = (mci_readl(host, CLKDIV) & 0xff) * 2; in dw_mci_set_xfer_timeout()
2013 host->bus_hz); in dw_mci_set_xfer_timeout()
2018 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_set_xfer_timeout()
2019 if (!test_bit(EVENT_XFER_COMPLETE, &host->pending_events)) in dw_mci_set_xfer_timeout()
2020 mod_timer(&host->xfer_timer, in dw_mci_set_xfer_timeout()
2022 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_set_xfer_timeout()
2025 static bool dw_mci_clear_pending_cmd_complete(struct dw_mci *host) in dw_mci_clear_pending_cmd_complete() argument
2027 if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) in dw_mci_clear_pending_cmd_complete()
2037 WARN_ON(del_timer_sync(&host->cto_timer)); in dw_mci_clear_pending_cmd_complete()
2038 clear_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_clear_pending_cmd_complete()
2043 static bool dw_mci_clear_pending_data_complete(struct dw_mci *host) in dw_mci_clear_pending_data_complete() argument
2045 if (!test_bit(EVENT_DATA_COMPLETE, &host->pending_events)) in dw_mci_clear_pending_data_complete()
2049 WARN_ON(del_timer_sync(&host->dto_timer)); in dw_mci_clear_pending_data_complete()
2050 clear_bit(EVENT_DATA_COMPLETE, &host->pending_events); in dw_mci_clear_pending_data_complete()
2057 struct dw_mci *host = (struct dw_mci *)priv; in dw_mci_tasklet_func() local
2065 spin_lock(&host->lock); in dw_mci_tasklet_func()
2067 state = host->state; in dw_mci_tasklet_func()
2068 data = host->data; in dw_mci_tasklet_func()
2069 mrq = host->mrq; in dw_mci_tasklet_func()
2081 if (!dw_mci_clear_pending_cmd_complete(host)) in dw_mci_tasklet_func()
2084 cmd = host->cmd; in dw_mci_tasklet_func()
2085 host->cmd = NULL; in dw_mci_tasklet_func()
2086 set_bit(EVENT_CMD_COMPLETE, &host->completed_events); in dw_mci_tasklet_func()
2087 err = dw_mci_command_complete(host, cmd); in dw_mci_tasklet_func()
2089 __dw_mci_start_request(host, host->slot, in dw_mci_tasklet_func()
2117 host->dir_status == DW_MCI_RECV_STATUS) { in dw_mci_tasklet_func()
2122 send_stop_abort(host, data); in dw_mci_tasklet_func()
2123 dw_mci_stop_dma(host); in dw_mci_tasklet_func()
2129 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2146 &host->pending_events)) { in dw_mci_tasklet_func()
2147 if (!(host->data_status & (SDMMC_INT_DRTO | in dw_mci_tasklet_func()
2149 send_stop_abort(host, data); in dw_mci_tasklet_func()
2150 dw_mci_stop_dma(host); in dw_mci_tasklet_func()
2156 &host->pending_events)) { in dw_mci_tasklet_func()
2161 if (host->dir_status == DW_MCI_RECV_STATUS) in dw_mci_tasklet_func()
2162 dw_mci_set_drto(host); in dw_mci_tasklet_func()
2163 if (host->need_xfer_timer && in dw_mci_tasklet_func()
2164 host->dir_status == DW_MCI_RECV_STATUS) in dw_mci_tasklet_func()
2165 dw_mci_set_xfer_timeout(host); in dw_mci_tasklet_func()
2169 set_bit(EVENT_XFER_COMPLETE, &host->completed_events); in dw_mci_tasklet_func()
2185 &host->pending_events)) { in dw_mci_tasklet_func()
2186 if (!(host->data_status & (SDMMC_INT_DRTO | in dw_mci_tasklet_func()
2188 send_stop_abort(host, data); in dw_mci_tasklet_func()
2189 dw_mci_stop_dma(host); in dw_mci_tasklet_func()
2198 if (!dw_mci_clear_pending_data_complete(host)) { in dw_mci_tasklet_func()
2204 if (host->dir_status == DW_MCI_RECV_STATUS) in dw_mci_tasklet_func()
2205 dw_mci_set_drto(host); in dw_mci_tasklet_func()
2209 host->data = NULL; in dw_mci_tasklet_func()
2210 set_bit(EVENT_DATA_COMPLETE, &host->completed_events); in dw_mci_tasklet_func()
2211 err = dw_mci_data_complete(host, data); in dw_mci_tasklet_func()
2217 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2223 send_stop_abort(host, data); in dw_mci_tasklet_func()
2235 &host->pending_events)) { in dw_mci_tasklet_func()
2236 host->cmd = NULL; in dw_mci_tasklet_func()
2237 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2251 if (!dw_mci_clear_pending_cmd_complete(host)) in dw_mci_tasklet_func()
2256 dw_mci_reset(host); in dw_mci_tasklet_func()
2258 host->cmd = NULL; in dw_mci_tasklet_func()
2259 host->data = NULL; in dw_mci_tasklet_func()
2262 dw_mci_command_complete(host, mrq->stop); in dw_mci_tasklet_func()
2264 host->cmd_status = 0; in dw_mci_tasklet_func()
2266 dw_mci_request_end(host, mrq); in dw_mci_tasklet_func()
2271 &host->pending_events)) in dw_mci_tasklet_func()
2279 host->state = state; in dw_mci_tasklet_func()
2281 spin_unlock(&host->lock); in dw_mci_tasklet_func()
2286 static void dw_mci_set_part_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_set_part_bytes() argument
2288 memcpy((void *)&host->part_buf, buf, cnt); in dw_mci_set_part_bytes()
2289 host->part_buf_count = cnt; in dw_mci_set_part_bytes()
2293 static int dw_mci_push_part_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_part_bytes() argument
2295 cnt = min(cnt, (1 << host->data_shift) - host->part_buf_count); in dw_mci_push_part_bytes()
2296 memcpy((void *)&host->part_buf + host->part_buf_count, buf, cnt); in dw_mci_push_part_bytes()
2297 host->part_buf_count += cnt; in dw_mci_push_part_bytes()
2302 static int dw_mci_pull_part_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_part_bytes() argument
2304 cnt = min_t(int, cnt, host->part_buf_count); in dw_mci_pull_part_bytes()
2306 memcpy(buf, (void *)&host->part_buf + host->part_buf_start, in dw_mci_pull_part_bytes()
2308 host->part_buf_count -= cnt; in dw_mci_pull_part_bytes()
2309 host->part_buf_start += cnt; in dw_mci_pull_part_bytes()
2315 static void dw_mci_pull_final_bytes(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_final_bytes() argument
2317 memcpy(buf, &host->part_buf, cnt); in dw_mci_pull_final_bytes()
2318 host->part_buf_start = cnt; in dw_mci_pull_final_bytes()
2319 host->part_buf_count = (1 << host->data_shift) - cnt; in dw_mci_pull_final_bytes()
2322 static void dw_mci_push_data16(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_data16() argument
2324 struct mmc_data *data = host->data; in dw_mci_push_data16()
2328 if (unlikely(host->part_buf_count)) { in dw_mci_push_data16()
2329 int len = dw_mci_push_part_bytes(host, buf, cnt); in dw_mci_push_data16()
2333 if (host->part_buf_count == 2) { in dw_mci_push_data16()
2334 mci_fifo_writew(host->fifo_reg, host->part_buf16); in dw_mci_push_data16()
2335 host->part_buf_count = 0; in dw_mci_push_data16()
2351 mci_fifo_writew(host->fifo_reg, aligned_buf[i]); in dw_mci_push_data16()
2359 mci_fifo_writew(host->fifo_reg, *pdata++); in dw_mci_push_data16()
2364 dw_mci_set_part_bytes(host, buf, cnt); in dw_mci_push_data16()
2368 mci_fifo_writew(host->fifo_reg, host->part_buf16); in dw_mci_push_data16()
2372 static void dw_mci_pull_data16(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data16() argument
2384 aligned_buf[i] = mci_fifo_readw(host->fifo_reg); in dw_mci_pull_data16()
2396 *pdata++ = mci_fifo_readw(host->fifo_reg); in dw_mci_pull_data16()
2400 host->part_buf16 = mci_fifo_readw(host->fifo_reg); in dw_mci_pull_data16()
2401 dw_mci_pull_final_bytes(host, buf, cnt); in dw_mci_pull_data16()
2405 static void dw_mci_push_data32(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_data32() argument
2407 struct mmc_data *data = host->data; in dw_mci_push_data32()
2411 if (unlikely(host->part_buf_count)) { in dw_mci_push_data32()
2412 int len = dw_mci_push_part_bytes(host, buf, cnt); in dw_mci_push_data32()
2416 if (host->part_buf_count == 4) { in dw_mci_push_data32()
2417 mci_fifo_writel(host->fifo_reg, host->part_buf32); in dw_mci_push_data32()
2418 host->part_buf_count = 0; in dw_mci_push_data32()
2434 mci_fifo_writel(host->fifo_reg, aligned_buf[i]); in dw_mci_push_data32()
2442 mci_fifo_writel(host->fifo_reg, *pdata++); in dw_mci_push_data32()
2447 dw_mci_set_part_bytes(host, buf, cnt); in dw_mci_push_data32()
2451 mci_fifo_writel(host->fifo_reg, host->part_buf32); in dw_mci_push_data32()
2455 static void dw_mci_pull_data32(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data32() argument
2467 aligned_buf[i] = mci_fifo_readl(host->fifo_reg); in dw_mci_pull_data32()
2479 *pdata++ = mci_fifo_readl(host->fifo_reg); in dw_mci_pull_data32()
2483 host->part_buf32 = mci_fifo_readl(host->fifo_reg); in dw_mci_pull_data32()
2484 dw_mci_pull_final_bytes(host, buf, cnt); in dw_mci_pull_data32()
2488 static void dw_mci_push_data64(struct dw_mci *host, void *buf, int cnt) in dw_mci_push_data64() argument
2490 struct mmc_data *data = host->data; in dw_mci_push_data64()
2494 if (unlikely(host->part_buf_count)) { in dw_mci_push_data64()
2495 int len = dw_mci_push_part_bytes(host, buf, cnt); in dw_mci_push_data64()
2500 if (host->part_buf_count == 8) { in dw_mci_push_data64()
2501 mci_fifo_writeq(host->fifo_reg, host->part_buf); in dw_mci_push_data64()
2502 host->part_buf_count = 0; in dw_mci_push_data64()
2518 mci_fifo_writeq(host->fifo_reg, aligned_buf[i]); in dw_mci_push_data64()
2526 mci_fifo_writeq(host->fifo_reg, *pdata++); in dw_mci_push_data64()
2531 dw_mci_set_part_bytes(host, buf, cnt); in dw_mci_push_data64()
2535 mci_fifo_writeq(host->fifo_reg, host->part_buf); in dw_mci_push_data64()
2539 static void dw_mci_pull_data64(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data64() argument
2551 aligned_buf[i] = mci_fifo_readq(host->fifo_reg); in dw_mci_pull_data64()
2564 *pdata++ = mci_fifo_readq(host->fifo_reg); in dw_mci_pull_data64()
2568 host->part_buf = mci_fifo_readq(host->fifo_reg); in dw_mci_pull_data64()
2569 dw_mci_pull_final_bytes(host, buf, cnt); in dw_mci_pull_data64()
2573 static void dw_mci_pull_data(struct dw_mci *host, void *buf, int cnt) in dw_mci_pull_data() argument
2578 len = dw_mci_pull_part_bytes(host, buf, cnt); in dw_mci_pull_data()
2585 host->pull_data(host, buf, cnt); in dw_mci_pull_data()
2588 static void dw_mci_read_data_pio(struct dw_mci *host, bool dto) in dw_mci_read_data_pio() argument
2590 struct sg_mapping_iter *sg_miter = &host->sg_miter; in dw_mci_read_data_pio()
2593 struct mmc_data *data = host->data; in dw_mci_read_data_pio()
2594 int shift = host->data_shift; in dw_mci_read_data_pio()
2603 host->sg = sg_miter->piter.sg; in dw_mci_read_data_pio()
2609 fcnt = (SDMMC_GET_FCNT(mci_readl(host, STATUS)) in dw_mci_read_data_pio()
2610 << shift) + host->part_buf_count; in dw_mci_read_data_pio()
2614 dw_mci_pull_data(host, (void *)(buf + offset), len); in dw_mci_read_data_pio()
2621 status = mci_readl(host, MINTSTS); in dw_mci_read_data_pio()
2622 mci_writel(host, RINTSTS, SDMMC_INT_RXDR); in dw_mci_read_data_pio()
2625 (dto && SDMMC_GET_FCNT(mci_readl(host, STATUS)))); in dw_mci_read_data_pio()
2637 host->sg = NULL; in dw_mci_read_data_pio()
2639 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_read_data_pio()
2640 if (host->need_xfer_timer) in dw_mci_read_data_pio()
2641 del_timer(&host->xfer_timer); in dw_mci_read_data_pio()
2644 static void dw_mci_write_data_pio(struct dw_mci *host) in dw_mci_write_data_pio() argument
2646 struct sg_mapping_iter *sg_miter = &host->sg_miter; in dw_mci_write_data_pio()
2649 struct mmc_data *data = host->data; in dw_mci_write_data_pio()
2650 int shift = host->data_shift; in dw_mci_write_data_pio()
2653 unsigned int fifo_depth = host->fifo_depth; in dw_mci_write_data_pio()
2660 host->sg = sg_miter->piter.sg; in dw_mci_write_data_pio()
2667 SDMMC_GET_FCNT(mci_readl(host, STATUS))) in dw_mci_write_data_pio()
2668 << shift) - host->part_buf_count; in dw_mci_write_data_pio()
2672 host->push_data(host, (void *)(buf + offset), len); in dw_mci_write_data_pio()
2679 status = mci_readl(host, MINTSTS); in dw_mci_write_data_pio()
2680 mci_writel(host, RINTSTS, SDMMC_INT_TXDR); in dw_mci_write_data_pio()
2693 host->sg = NULL; in dw_mci_write_data_pio()
2695 set_bit(EVENT_XFER_COMPLETE, &host->pending_events); in dw_mci_write_data_pio()
2698 static void dw_mci_cmd_interrupt(struct dw_mci *host, u32 status) in dw_mci_cmd_interrupt() argument
2700 del_timer(&host->cto_timer); in dw_mci_cmd_interrupt()
2702 if (!host->cmd_status) in dw_mci_cmd_interrupt()
2703 host->cmd_status = status; in dw_mci_cmd_interrupt()
2707 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_cmd_interrupt()
2708 tasklet_schedule(&host->tasklet); in dw_mci_cmd_interrupt()
2711 static void dw_mci_handle_cd(struct dw_mci *host) in dw_mci_handle_cd() argument
2713 struct dw_mci_slot *slot = host->slot; in dw_mci_handle_cd()
2718 msecs_to_jiffies(host->pdata->detect_delay_ms)); in dw_mci_handle_cd()
2723 struct dw_mci *host = dev_id; in dw_mci_interrupt() local
2725 struct dw_mci_slot *slot = host->slot; in dw_mci_interrupt()
2728 pending = mci_readl(host, MINTSTS); /* read-only mask reg */ in dw_mci_interrupt()
2732 if ((host->state == STATE_SENDING_CMD11) && in dw_mci_interrupt()
2734 mci_writel(host, RINTSTS, SDMMC_INT_VOLT_SWITCH); in dw_mci_interrupt()
2741 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2742 dw_mci_cmd_interrupt(host, pending); in dw_mci_interrupt()
2743 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2745 del_timer(&host->cmd11_timer); in dw_mci_interrupt()
2749 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2751 del_timer(&host->cto_timer); in dw_mci_interrupt()
2752 mci_writel(host, RINTSTS, DW_MCI_CMD_ERROR_FLAGS); in dw_mci_interrupt()
2753 host->cmd_status = pending; in dw_mci_interrupt()
2754 if ((host->need_xfer_timer) && in dw_mci_interrupt()
2755 host->dir_status == DW_MCI_RECV_STATUS) in dw_mci_interrupt()
2756 del_timer(&host->xfer_timer); in dw_mci_interrupt()
2758 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_interrupt()
2760 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2765 mci_writel(host, RINTSTS, DW_MCI_DATA_ERROR_FLAGS); in dw_mci_interrupt()
2766 host->data_status = pending; in dw_mci_interrupt()
2768 set_bit(EVENT_DATA_ERROR, &host->pending_events); in dw_mci_interrupt()
2769 tasklet_schedule(&host->tasklet); in dw_mci_interrupt()
2774 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2776 del_timer(&host->dto_timer); in dw_mci_interrupt()
2778 mci_writel(host, RINTSTS, SDMMC_INT_DATA_OVER); in dw_mci_interrupt()
2779 if (host->is_rv1106_sd) in dw_mci_interrupt()
2781 if (!host->data_status) in dw_mci_interrupt()
2782 host->data_status = pending; in dw_mci_interrupt()
2784 if (host->dir_status == DW_MCI_RECV_STATUS) { in dw_mci_interrupt()
2785 if (host->sg != NULL) in dw_mci_interrupt()
2786 dw_mci_read_data_pio(host, true); in dw_mci_interrupt()
2788 set_bit(EVENT_DATA_COMPLETE, &host->pending_events); in dw_mci_interrupt()
2789 tasklet_schedule(&host->tasklet); in dw_mci_interrupt()
2791 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2795 mci_writel(host, RINTSTS, SDMMC_INT_RXDR); in dw_mci_interrupt()
2796 if (host->dir_status == DW_MCI_RECV_STATUS && host->sg) in dw_mci_interrupt()
2797 dw_mci_read_data_pio(host, false); in dw_mci_interrupt()
2801 mci_writel(host, RINTSTS, SDMMC_INT_TXDR); in dw_mci_interrupt()
2802 if (host->dir_status == DW_MCI_SEND_STATUS && host->sg) in dw_mci_interrupt()
2803 dw_mci_write_data_pio(host); in dw_mci_interrupt()
2807 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_interrupt()
2809 mci_writel(host, RINTSTS, SDMMC_INT_CMD_DONE); in dw_mci_interrupt()
2810 dw_mci_cmd_interrupt(host, pending); in dw_mci_interrupt()
2812 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_interrupt()
2816 mci_writel(host, RINTSTS, SDMMC_INT_CD); in dw_mci_interrupt()
2817 dw_mci_handle_cd(host); in dw_mci_interrupt()
2821 mci_writel(host, RINTSTS, in dw_mci_interrupt()
2829 if (host->use_dma != TRANS_MODE_IDMAC) in dw_mci_interrupt()
2833 if (host->dma_64bit_address == 1) { in dw_mci_interrupt()
2834 pending = mci_readl(host, IDSTS64); in dw_mci_interrupt()
2836 mci_writel(host, IDSTS64, SDMMC_IDMAC_INT_TI | in dw_mci_interrupt()
2838 mci_writel(host, IDSTS64, SDMMC_IDMAC_INT_NI); in dw_mci_interrupt()
2839 if (!test_bit(EVENT_DATA_ERROR, &host->pending_events)) in dw_mci_interrupt()
2840 host->dma_ops->complete((void *)host); in dw_mci_interrupt()
2843 pending = mci_readl(host, IDSTS); in dw_mci_interrupt()
2845 mci_writel(host, IDSTS, SDMMC_IDMAC_INT_TI | in dw_mci_interrupt()
2847 mci_writel(host, IDSTS, SDMMC_IDMAC_INT_NI); in dw_mci_interrupt()
2848 if (!test_bit(EVENT_DATA_ERROR, &host->pending_events)) in dw_mci_interrupt()
2849 host->dma_ops->complete((void *)host); in dw_mci_interrupt()
2851 if (host->is_rv1106_sd && (pending & SDMMC_IDMAC_INT_TI)) in dw_mci_interrupt()
2861 struct dw_mci *host = slot->host; in dw_mci_init_slot_caps() local
2862 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_init_slot_caps()
2866 if (host->pdata->caps) in dw_mci_init_slot_caps()
2867 mmc->caps = host->pdata->caps; in dw_mci_init_slot_caps()
2869 if (host->pdata->pm_caps) in dw_mci_init_slot_caps()
2870 mmc->pm_caps = host->pdata->pm_caps; in dw_mci_init_slot_caps()
2872 if (host->dev->of_node) { in dw_mci_init_slot_caps()
2873 ctrl_id = of_alias_get_id(host->dev->of_node, "mshc"); in dw_mci_init_slot_caps()
2877 ctrl_id = to_platform_device(host->dev)->id; in dw_mci_init_slot_caps()
2882 dev_err(host->dev, "invalid controller id %d\n", in dw_mci_init_slot_caps()
2889 if (host->pdata->caps2) in dw_mci_init_slot_caps()
2890 mmc->caps2 = host->pdata->caps2; in dw_mci_init_slot_caps()
2903 static int dw_mci_init_slot(struct dw_mci *host) in dw_mci_init_slot() argument
2909 mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), host->dev); in dw_mci_init_slot()
2915 slot->sdio_id = host->sdio_id0 + slot->id; in dw_mci_init_slot()
2917 slot->host = host; in dw_mci_init_slot()
2918 host->slot = slot; in dw_mci_init_slot()
2939 if (host->use_dma == TRANS_MODE_IDMAC) { in dw_mci_init_slot()
2941 if (host->is_rv1106_sd) in dw_mci_init_slot()
2942 host->ring_size--; in dw_mci_init_slot()
2944 mmc->max_segs = host->ring_size; in dw_mci_init_slot()
2947 mmc->max_req_size = mmc->max_seg_size * host->ring_size; in dw_mci_init_slot()
2949 } else if (host->use_dma == TRANS_MODE_EDMAC) { in dw_mci_init_slot()
2987 slot->host->slot = NULL; in dw_mci_cleanup_slot()
2991 static void dw_mci_init_dma(struct dw_mci *host) in dw_mci_init_dma() argument
2994 struct device *dev = host->dev; in dw_mci_init_dma()
3007 host->use_dma = SDMMC_GET_TRANS_MODE(mci_readl(host, HCON)); in dw_mci_init_dma()
3008 if (host->use_dma == DMA_INTERFACE_IDMA) { in dw_mci_init_dma()
3009 host->use_dma = TRANS_MODE_IDMAC; in dw_mci_init_dma()
3010 } else if (host->use_dma == DMA_INTERFACE_DWDMA || in dw_mci_init_dma()
3011 host->use_dma == DMA_INTERFACE_GDMA) { in dw_mci_init_dma()
3012 host->use_dma = TRANS_MODE_EDMAC; in dw_mci_init_dma()
3018 if (host->use_dma == TRANS_MODE_IDMAC) { in dw_mci_init_dma()
3023 addr_config = SDMMC_GET_ADDR_CONFIG(mci_readl(host, HCON)); in dw_mci_init_dma()
3026 /* host supports IDMAC in 64-bit address mode */ in dw_mci_init_dma()
3027 host->dma_64bit_address = 1; in dw_mci_init_dma()
3028 dev_info(host->dev, in dw_mci_init_dma()
3030 if (!dma_set_mask(host->dev, DMA_BIT_MASK(64))) in dw_mci_init_dma()
3031 dma_set_coherent_mask(host->dev, in dw_mci_init_dma()
3034 /* host supports IDMAC in 32-bit address mode */ in dw_mci_init_dma()
3035 host->dma_64bit_address = 0; in dw_mci_init_dma()
3036 dev_info(host->dev, in dw_mci_init_dma()
3041 host->sg_cpu = dmam_alloc_coherent(host->dev, in dw_mci_init_dma()
3043 &host->sg_dma, GFP_KERNEL); in dw_mci_init_dma()
3044 if (!host->sg_cpu) { in dw_mci_init_dma()
3045 dev_err(host->dev, in dw_mci_init_dma()
3051 host->dma_ops = &dw_mci_idmac_ops; in dw_mci_init_dma()
3052 dev_info(host->dev, "Using internal DMA controller.\n"); in dw_mci_init_dma()
3060 host->dma_ops = &dw_mci_edmac_ops; in dw_mci_init_dma()
3061 dev_info(host->dev, "Using external DMA controller.\n"); in dw_mci_init_dma()
3064 if (host->dma_ops->init && host->dma_ops->start && in dw_mci_init_dma()
3065 host->dma_ops->stop && host->dma_ops->cleanup) { in dw_mci_init_dma()
3066 if (host->dma_ops->init(host)) { in dw_mci_init_dma()
3067 dev_err(host->dev, "%s: Unable to initialize DMA Controller.\n", in dw_mci_init_dma()
3072 dev_err(host->dev, "DMA initialization not found.\n"); in dw_mci_init_dma()
3079 dev_info(host->dev, "Using PIO mode.\n"); in dw_mci_init_dma()
3080 host->use_dma = TRANS_MODE_PIO; in dw_mci_init_dma()
3085 struct dw_mci *host = from_timer(host, t, cmd11_timer); in dw_mci_cmd11_timer() local
3087 if (host->state != STATE_SENDING_CMD11) { in dw_mci_cmd11_timer()
3088 dev_warn(host->dev, "Unexpected CMD11 timeout\n"); in dw_mci_cmd11_timer()
3092 host->cmd_status = SDMMC_INT_RTO; in dw_mci_cmd11_timer()
3093 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_cmd11_timer()
3094 tasklet_schedule(&host->tasklet); in dw_mci_cmd11_timer()
3099 struct dw_mci *host = from_timer(host, t, cto_timer); in dw_mci_cto_timer() local
3103 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_cto_timer()
3113 pending = mci_readl(host, MINTSTS); /* read-only mask reg */ in dw_mci_cto_timer()
3116 dev_warn(host->dev, "Unexpected interrupt latency\n"); in dw_mci_cto_timer()
3119 if (test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) { in dw_mci_cto_timer()
3121 dev_warn(host->dev, "CTO timeout when already completed\n"); in dw_mci_cto_timer()
3129 switch (host->state) { in dw_mci_cto_timer()
3138 host->cmd_status = SDMMC_INT_RTO; in dw_mci_cto_timer()
3139 set_bit(EVENT_CMD_COMPLETE, &host->pending_events); in dw_mci_cto_timer()
3140 tasklet_schedule(&host->tasklet); in dw_mci_cto_timer()
3143 dev_warn(host->dev, "Unexpected command timeout, state %d\n", in dw_mci_cto_timer()
3144 host->state); in dw_mci_cto_timer()
3149 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_cto_timer()
3154 struct dw_mci *host = from_timer(host, t, xfer_timer); in dw_mci_xfer_timer() local
3157 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_xfer_timer()
3159 if (test_bit(EVENT_XFER_COMPLETE, &host->pending_events)) { in dw_mci_xfer_timer()
3161 dev_warn(host->dev, "xfer when already completed\n"); in dw_mci_xfer_timer()
3165 switch (host->state) { in dw_mci_xfer_timer()
3167 host->data_status = SDMMC_INT_DRTO; in dw_mci_xfer_timer()
3168 set_bit(EVENT_DATA_ERROR, &host->pending_events); in dw_mci_xfer_timer()
3169 set_bit(EVENT_DATA_COMPLETE, &host->pending_events); in dw_mci_xfer_timer()
3170 tasklet_schedule(&host->tasklet); in dw_mci_xfer_timer()
3173 dev_warn(host->dev, "Unexpected xfer timeout, state %d\n", in dw_mci_xfer_timer()
3174 host->state); in dw_mci_xfer_timer()
3179 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_xfer_timer()
3184 struct dw_mci *host = from_timer(host, t, dto_timer); in dw_mci_dto_timer() local
3188 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_dto_timer()
3194 pending = mci_readl(host, MINTSTS); /* read-only mask reg */ in dw_mci_dto_timer()
3197 dev_warn(host->dev, "Unexpected data interrupt latency\n"); in dw_mci_dto_timer()
3200 if (test_bit(EVENT_DATA_COMPLETE, &host->pending_events)) { in dw_mci_dto_timer()
3202 dev_warn(host->dev, "DTO timeout when already completed\n"); in dw_mci_dto_timer()
3210 switch (host->state) { in dw_mci_dto_timer()
3218 host->data_status = SDMMC_INT_DRTO; in dw_mci_dto_timer()
3219 set_bit(EVENT_DATA_ERROR, &host->pending_events); in dw_mci_dto_timer()
3220 set_bit(EVENT_DATA_COMPLETE, &host->pending_events); in dw_mci_dto_timer()
3221 tasklet_schedule(&host->tasklet); in dw_mci_dto_timer()
3224 dev_warn(host->dev, "Unexpected data timeout, state %d\n", in dw_mci_dto_timer()
3225 host->state); in dw_mci_dto_timer()
3230 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_dto_timer()
3234 static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) in dw_mci_parse_dt() argument
3237 struct device *dev = host->dev; in dw_mci_parse_dt()
3238 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_parse_dt()
3260 device_property_read_u32(dev, "data-addr", &host->data_addr_override); in dw_mci_parse_dt()
3263 host->wm_aligned = true; in dw_mci_parse_dt()
3269 ret = drv_data->parse_dt(host); in dw_mci_parse_dt()
3274 host->pinctrl = devm_pinctrl_get(host->dev); in dw_mci_parse_dt()
3275 if (!IS_ERR(host->pinctrl)) { in dw_mci_parse_dt()
3276 host->normal_state = pinctrl_lookup_state(host->pinctrl, "normal"); in dw_mci_parse_dt()
3277 if (IS_ERR(host->normal_state)) in dw_mci_parse_dt()
3280 host->idle_state = pinctrl_lookup_state(host->pinctrl, "idle"); in dw_mci_parse_dt()
3281 if (IS_ERR(host->idle_state)) in dw_mci_parse_dt()
3284 if (!IS_ERR(host->normal_state) && !IS_ERR(host->idle_state)) in dw_mci_parse_dt()
3285 pinctrl_select_state(host->pinctrl, host->idle_state); in dw_mci_parse_dt()
3287 host->pinctrl = NULL; in dw_mci_parse_dt()
3294 static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) in dw_mci_parse_dt() argument
3300 static void dw_mci_enable_cd(struct dw_mci *host) in dw_mci_enable_cd() argument
3309 if (host->slot->mmc->caps & MMC_CAP_NEEDS_POLL) in dw_mci_enable_cd()
3312 if (mmc_gpio_get_cd(host->slot->mmc) < 0) { in dw_mci_enable_cd()
3313 spin_lock_irqsave(&host->irq_lock, irqflags); in dw_mci_enable_cd()
3314 temp = mci_readl(host, INTMASK); in dw_mci_enable_cd()
3316 mci_writel(host, INTMASK, temp); in dw_mci_enable_cd()
3317 spin_unlock_irqrestore(&host->irq_lock, irqflags); in dw_mci_enable_cd()
3321 int dw_mci_probe(struct dw_mci *host) in dw_mci_probe() argument
3323 const struct dw_mci_drv_data *drv_data = host->drv_data; in dw_mci_probe()
3327 if (!host->pdata) { in dw_mci_probe()
3328 host->pdata = dw_mci_parse_dt(host); in dw_mci_probe()
3329 if (IS_ERR(host->pdata)) in dw_mci_probe()
3330 return dev_err_probe(host->dev, PTR_ERR(host->pdata), in dw_mci_probe()
3334 host->biu_clk = devm_clk_get(host->dev, "biu"); in dw_mci_probe()
3335 if (IS_ERR(host->biu_clk)) { in dw_mci_probe()
3336 dev_dbg(host->dev, "biu clock not available\n"); in dw_mci_probe()
3338 ret = clk_prepare_enable(host->biu_clk); in dw_mci_probe()
3340 dev_err(host->dev, "failed to enable biu clock\n"); in dw_mci_probe()
3346 if (device_property_read_bool(host->dev, "no-sd") && in dw_mci_probe()
3347 device_property_read_bool(host->dev, "no-sdio")) { in dw_mci_probe()
3348 if (readl_poll_timeout(host->regs + SDMMC_STATUS, in dw_mci_probe()
3352 dev_err(host->dev, "Controller is occupied!\n"); in dw_mci_probe()
3354 if (readl_poll_timeout(host->regs + SDMMC_IDSTS, in dw_mci_probe()
3357 dev_err(host->dev, "DMA is still running!\n"); in dw_mci_probe()
3359 BUG_ON(mci_readl(host, RINTSTS) & DW_MCI_ERROR_FLAGS); in dw_mci_probe()
3363 host->ciu_clk = devm_clk_get(host->dev, "ciu"); in dw_mci_probe()
3364 if (IS_ERR(host->ciu_clk)) { in dw_mci_probe()
3365 dev_dbg(host->dev, "ciu clock not available\n"); in dw_mci_probe()
3366 host->bus_hz = host->pdata->bus_hz; in dw_mci_probe()
3368 ret = clk_prepare_enable(host->ciu_clk); in dw_mci_probe()
3370 dev_err(host->dev, "failed to enable ciu clock\n"); in dw_mci_probe()
3374 if (host->pdata->bus_hz) { in dw_mci_probe()
3375 ret = clk_set_rate(host->ciu_clk, host->pdata->bus_hz); in dw_mci_probe()
3377 dev_warn(host->dev, in dw_mci_probe()
3379 host->pdata->bus_hz); in dw_mci_probe()
3381 host->bus_hz = clk_get_rate(host->ciu_clk); in dw_mci_probe()
3384 if (!host->bus_hz) { in dw_mci_probe()
3385 dev_err(host->dev, in dw_mci_probe()
3391 if (!IS_ERR(host->pdata->rstc)) { in dw_mci_probe()
3392 reset_control_assert(host->pdata->rstc); in dw_mci_probe()
3394 reset_control_deassert(host->pdata->rstc); in dw_mci_probe()
3398 ret = drv_data->init(host); in dw_mci_probe()
3400 dev_err(host->dev, in dw_mci_probe()
3406 timer_setup(&host->cmd11_timer, dw_mci_cmd11_timer, 0); in dw_mci_probe()
3407 timer_setup(&host->cto_timer, dw_mci_cto_timer, 0); in dw_mci_probe()
3408 timer_setup(&host->dto_timer, dw_mci_dto_timer, 0); in dw_mci_probe()
3409 if (host->need_xfer_timer) in dw_mci_probe()
3410 timer_setup(&host->xfer_timer, dw_mci_xfer_timer, 0); in dw_mci_probe()
3412 spin_lock_init(&host->lock); in dw_mci_probe()
3413 spin_lock_init(&host->irq_lock); in dw_mci_probe()
3414 INIT_LIST_HEAD(&host->queue); in dw_mci_probe()
3417 * Get the host data width - this assumes that HCON has been set with in dw_mci_probe()
3420 i = SDMMC_GET_HDATA_WIDTH(mci_readl(host, HCON)); in dw_mci_probe()
3422 host->push_data = dw_mci_push_data16; in dw_mci_probe()
3423 host->pull_data = dw_mci_pull_data16; in dw_mci_probe()
3425 host->data_shift = 1; in dw_mci_probe()
3427 host->push_data = dw_mci_push_data64; in dw_mci_probe()
3428 host->pull_data = dw_mci_pull_data64; in dw_mci_probe()
3430 host->data_shift = 3; in dw_mci_probe()
3434 "HCON reports a reserved host data width!\n" in dw_mci_probe()
3436 host->push_data = dw_mci_push_data32; in dw_mci_probe()
3437 host->pull_data = dw_mci_pull_data32; in dw_mci_probe()
3439 host->data_shift = 2; in dw_mci_probe()
3443 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_ALL_RESET_FLAGS)) { in dw_mci_probe()
3448 host->dma_ops = host->pdata->dma_ops; in dw_mci_probe()
3449 dw_mci_init_dma(host); in dw_mci_probe()
3451 /* Clear the interrupts for the host controller */ in dw_mci_probe()
3452 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_probe()
3453 mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */ in dw_mci_probe()
3456 mci_writel(host, TMOUT, 0xFFFFFFFF); in dw_mci_probe()
3462 if (!host->pdata->fifo_depth) { in dw_mci_probe()
3469 fifo_size = mci_readl(host, FIFOTH); in dw_mci_probe()
3472 fifo_size = host->pdata->fifo_depth; in dw_mci_probe()
3474 host->fifo_depth = fifo_size; in dw_mci_probe()
3475 host->fifoth_val = in dw_mci_probe()
3477 mci_writel(host, FIFOTH, host->fifoth_val); in dw_mci_probe()
3480 mci_writel(host, CLKENA, 0); in dw_mci_probe()
3481 mci_writel(host, CLKSRC, 0); in dw_mci_probe()
3487 host->verid = SDMMC_GET_VERID(mci_readl(host, VERID)); in dw_mci_probe()
3488 dev_info(host->dev, "Version ID is %04x\n", host->verid); in dw_mci_probe()
3490 if (host->data_addr_override) in dw_mci_probe()
3491 host->fifo_reg = host->regs + host->data_addr_override; in dw_mci_probe()
3492 else if (host->verid < DW_MMC_240A) in dw_mci_probe()
3493 host->fifo_reg = host->regs + DATA_OFFSET; in dw_mci_probe()
3495 host->fifo_reg = host->regs + DATA_240A_OFFSET; in dw_mci_probe()
3497 tasklet_init(&host->tasklet, dw_mci_tasklet_func, (unsigned long)host); in dw_mci_probe()
3498 ret = devm_request_irq(host->dev, host->irq, dw_mci_interrupt, in dw_mci_probe()
3499 host->irq_flags, "dw-mci", host); in dw_mci_probe()
3507 mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | in dw_mci_probe()
3511 mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); in dw_mci_probe()
3513 dev_info(host->dev, in dw_mci_probe()
3514 "DW MMC controller at irq %d,%d bit host data width,%u deep fifo\n", in dw_mci_probe()
3515 host->irq, width, fifo_size); in dw_mci_probe()
3518 ret = dw_mci_init_slot(host); in dw_mci_probe()
3520 dev_dbg(host->dev, "slot %d init failed\n", i); in dw_mci_probe()
3524 if (host->is_rv1106_sd) { in dw_mci_probe()
3526 g_sdmmc_ispvicap_lock = &host->lock; in dw_mci_probe()
3529 fifo_size = mci_readl(host, CTRL); in dw_mci_probe()
3531 mci_writel(host, CTRL, fifo_size); in dw_mci_probe()
3533 fifo_size = mci_readl(host, INTMASK); in dw_mci_probe()
3535 mci_writel(host, INTMASK, fifo_size); in dw_mci_probe()
3537 host->slot->mmc->caps &= ~(MMC_CAP_UHS_DDR50 | MMC_CAP_UHS_SDR104 | in dw_mci_probe()
3543 dw_mci_enable_cd(host); in dw_mci_probe()
3548 if (host->use_dma && host->dma_ops->exit) in dw_mci_probe()
3549 host->dma_ops->exit(host); in dw_mci_probe()
3551 if (!IS_ERR(host->pdata->rstc)) in dw_mci_probe()
3552 reset_control_assert(host->pdata->rstc); in dw_mci_probe()
3555 clk_disable_unprepare(host->ciu_clk); in dw_mci_probe()
3558 clk_disable_unprepare(host->biu_clk); in dw_mci_probe()
3564 void dw_mci_remove(struct dw_mci *host) in dw_mci_remove() argument
3566 dev_dbg(host->dev, "remove slot\n"); in dw_mci_remove()
3567 if (host->slot) in dw_mci_remove()
3568 dw_mci_cleanup_slot(host->slot); in dw_mci_remove()
3570 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_remove()
3571 mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */ in dw_mci_remove()
3574 mci_writel(host, CLKENA, 0); in dw_mci_remove()
3575 mci_writel(host, CLKSRC, 0); in dw_mci_remove()
3577 if (host->use_dma && host->dma_ops->exit) in dw_mci_remove()
3578 host->dma_ops->exit(host); in dw_mci_remove()
3580 if (!IS_ERR(host->pdata->rstc)) in dw_mci_remove()
3581 reset_control_assert(host->pdata->rstc); in dw_mci_remove()
3583 clk_disable_unprepare(host->ciu_clk); in dw_mci_remove()
3584 clk_disable_unprepare(host->biu_clk); in dw_mci_remove()
3593 struct dw_mci *host = dev_get_drvdata(dev); in dw_mci_runtime_suspend() local
3595 if (host->use_dma && host->dma_ops->exit) in dw_mci_runtime_suspend()
3596 host->dma_ops->exit(host); in dw_mci_runtime_suspend()
3598 clk_disable_unprepare(host->ciu_clk); in dw_mci_runtime_suspend()
3600 if (host->slot && in dw_mci_runtime_suspend()
3601 (mmc_can_gpio_cd(host->slot->mmc) || in dw_mci_runtime_suspend()
3602 !mmc_card_is_removable(host->slot->mmc))) in dw_mci_runtime_suspend()
3603 clk_disable_unprepare(host->biu_clk); in dw_mci_runtime_suspend()
3612 struct dw_mci *host = dev_get_drvdata(dev); in dw_mci_runtime_resume() local
3614 if (host->slot && in dw_mci_runtime_resume()
3615 (mmc_can_gpio_cd(host->slot->mmc) || in dw_mci_runtime_resume()
3616 !mmc_card_is_removable(host->slot->mmc))) { in dw_mci_runtime_resume()
3617 ret = clk_prepare_enable(host->biu_clk); in dw_mci_runtime_resume()
3622 ret = clk_prepare_enable(host->ciu_clk); in dw_mci_runtime_resume()
3626 if (!dw_mci_ctrl_reset(host, SDMMC_CTRL_ALL_RESET_FLAGS)) { in dw_mci_runtime_resume()
3627 clk_disable_unprepare(host->ciu_clk); in dw_mci_runtime_resume()
3632 if (host->use_dma && host->dma_ops->init) in dw_mci_runtime_resume()
3633 host->dma_ops->init(host); in dw_mci_runtime_resume()
3639 mci_writel(host, FIFOTH, host->fifoth_val); in dw_mci_runtime_resume()
3640 host->prev_blksz = 0; in dw_mci_runtime_resume()
3643 mci_writel(host, TMOUT, 0xFFFFFFFF); in dw_mci_runtime_resume()
3645 mci_writel(host, RINTSTS, 0xFFFFFFFF); in dw_mci_runtime_resume()
3646 mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | DW_MCI_ERROR_FLAGS); in dw_mci_runtime_resume()
3647 mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); in dw_mci_runtime_resume()
3649 if (host->is_rv1106_sd) { in dw_mci_runtime_resume()
3651 ret = mci_readl(host, CTRL); in dw_mci_runtime_resume()
3653 mci_writel(host, CTRL, ret); in dw_mci_runtime_resume()
3655 ret = mci_readl(host, INTMASK); in dw_mci_runtime_resume()
3657 mci_writel(host, INTMASK, ret); in dw_mci_runtime_resume()
3660 if (host->slot->mmc->pm_flags & MMC_PM_KEEP_POWER) in dw_mci_runtime_resume()
3661 dw_mci_set_ios(host->slot->mmc, &host->slot->mmc->ios); in dw_mci_runtime_resume()
3664 dw_mci_setup_bus(host->slot, true); in dw_mci_runtime_resume()
3667 if (sdio_irq_claimed(host->slot->mmc)) in dw_mci_runtime_resume()
3668 __dw_mci_enable_sdio_irq(host->slot, 1); in dw_mci_runtime_resume()
3671 dw_mci_enable_cd(host); in dw_mci_runtime_resume()
3676 if (host->slot && in dw_mci_runtime_resume()
3677 (mmc_can_gpio_cd(host->slot->mmc) || in dw_mci_runtime_resume()
3678 !mmc_card_is_removable(host->slot->mmc))) in dw_mci_runtime_resume()
3679 clk_disable_unprepare(host->biu_clk); in dw_mci_runtime_resume()