Lines Matching full:host
3 * linux/drivers/mmc/host/omap.c
23 #include <linux/mmc/host.h>
74 #define mmc_omap7xx() (host->features & MMC_OMAP7XX)
75 #define mmc_omap15xx() (host->features & MMC_OMAP15XX)
76 #define mmc_omap16xx() (host->features & MMC_OMAP16XX)
78 #define mmc_omap1() (host->features & MMC_OMAP1_MASK)
81 #define OMAP_MMC_REG(host, reg) (OMAP_MMC_REG_##reg << (host)->reg_shift) argument
82 #define OMAP_MMC_READ(host, reg) __raw_readw((host)->virt_base + OMAP_MMC_REG(host, reg)) argument
83 #define OMAP_MMC_WRITE(host, reg, val) __raw_writew((val), (host)->virt_base + OMAP_MMC_REG(host, r… argument
114 struct mmc_omap_host *host; member
180 if (slot != NULL && slot->host->fclk_enabled && slot->fclk_freq > 0) { in mmc_omap_fclk_offdelay()
186 static void mmc_omap_fclk_enable(struct mmc_omap_host *host, unsigned int enable) in mmc_omap_fclk_enable() argument
190 spin_lock_irqsave(&host->clk_lock, flags); in mmc_omap_fclk_enable()
191 if (host->fclk_enabled != enable) { in mmc_omap_fclk_enable()
192 host->fclk_enabled = enable; in mmc_omap_fclk_enable()
194 clk_enable(host->fclk); in mmc_omap_fclk_enable()
196 clk_disable(host->fclk); in mmc_omap_fclk_enable()
198 spin_unlock_irqrestore(&host->clk_lock, flags); in mmc_omap_fclk_enable()
203 struct mmc_omap_host *host = slot->host; in mmc_omap_select_slot() local
208 spin_lock_irqsave(&host->slot_lock, flags); in mmc_omap_select_slot()
209 while (host->mmc != NULL) { in mmc_omap_select_slot()
210 spin_unlock_irqrestore(&host->slot_lock, flags); in mmc_omap_select_slot()
211 wait_event(host->slot_wq, host->mmc == NULL); in mmc_omap_select_slot()
212 spin_lock_irqsave(&host->slot_lock, flags); in mmc_omap_select_slot()
214 host->mmc = slot->mmc; in mmc_omap_select_slot()
215 spin_unlock_irqrestore(&host->slot_lock, flags); in mmc_omap_select_slot()
217 timer_delete(&host->clk_timer); in mmc_omap_select_slot()
218 if (host->current_slot != slot || !claimed) in mmc_omap_select_slot()
219 mmc_omap_fclk_offdelay(host->current_slot); in mmc_omap_select_slot()
221 if (host->current_slot != slot) { in mmc_omap_select_slot()
222 OMAP_MMC_WRITE(host, CON, slot->saved_con & 0xFC00); in mmc_omap_select_slot()
223 if (host->slot_switch) in mmc_omap_select_slot()
229 gpiod_set_value(host->slot_switch, slot->id); in mmc_omap_select_slot()
230 host->current_slot = slot; in mmc_omap_select_slot()
234 mmc_omap_fclk_enable(host, 1); in mmc_omap_select_slot()
239 OMAP_MMC_READ(host, CON); in mmc_omap_select_slot()
241 OMAP_MMC_WRITE(host, CON, slot->saved_con); in mmc_omap_select_slot()
243 mmc_omap_fclk_enable(host, 0); in mmc_omap_select_slot()
246 static void mmc_omap_start_request(struct mmc_omap_host *host,
251 struct mmc_omap_host *host = container_of(work, struct mmc_omap_host, in mmc_omap_slot_release_work() local
253 struct mmc_omap_slot *next_slot = host->next_slot; in mmc_omap_slot_release_work()
256 host->next_slot = NULL; in mmc_omap_slot_release_work()
261 mmc_omap_start_request(host, rq); in mmc_omap_slot_release_work()
266 struct mmc_omap_host *host = slot->host; in mmc_omap_release_slot() local
270 BUG_ON(slot == NULL || host->mmc == NULL); in mmc_omap_release_slot()
274 mod_timer(&host->clk_timer, jiffies + HZ/10); in mmc_omap_release_slot()
276 timer_delete(&host->clk_timer); in mmc_omap_release_slot()
278 mmc_omap_fclk_enable(host, 0); in mmc_omap_release_slot()
281 spin_lock_irqsave(&host->slot_lock, flags); in mmc_omap_release_slot()
283 for (i = 0; i < host->nr_slots; i++) { in mmc_omap_release_slot()
286 if (host->slots[i] == NULL || host->slots[i]->mrq == NULL) in mmc_omap_release_slot()
289 BUG_ON(host->next_slot != NULL); in mmc_omap_release_slot()
290 new_slot = host->slots[i]; in mmc_omap_release_slot()
292 BUG_ON(new_slot == host->current_slot); in mmc_omap_release_slot()
294 host->next_slot = new_slot; in mmc_omap_release_slot()
295 host->mmc = new_slot->mmc; in mmc_omap_release_slot()
296 spin_unlock_irqrestore(&host->slot_lock, flags); in mmc_omap_release_slot()
297 queue_work(host->mmc_omap_wq, &host->slot_release_work); in mmc_omap_release_slot()
301 host->mmc = NULL; in mmc_omap_release_slot()
302 wake_up(&host->slot_wq); in mmc_omap_release_slot()
303 spin_unlock_irqrestore(&host->slot_lock, flags); in mmc_omap_release_slot()
344 mmc_omap_start_command(struct mmc_omap_host *host, struct mmc_command *cmd) in mmc_omap_start_command() argument
351 host->cmd = cmd; in mmc_omap_start_command()
372 dev_err(mmc_dev(host->mmc), "Invalid response type: %04x\n", mmc_resp_type(cmd)); in mmc_omap_start_command()
388 if (host->current_slot->bus_mode == MMC_BUSMODE_OPENDRAIN) in mmc_omap_start_command()
394 if (host->data && !(host->data->flags & MMC_DATA_WRITE)) in mmc_omap_start_command()
397 mod_timer(&host->cmd_abort_timer, jiffies + HZ/2); in mmc_omap_start_command()
399 OMAP_MMC_WRITE(host, CTO, 200); in mmc_omap_start_command()
400 OMAP_MMC_WRITE(host, ARGL, cmd->arg & 0xffff); in mmc_omap_start_command()
401 OMAP_MMC_WRITE(host, ARGH, cmd->arg >> 16); in mmc_omap_start_command()
409 OMAP_MMC_WRITE(host, IE, irq_mask); in mmc_omap_start_command()
410 OMAP_MMC_WRITE(host, CMD, cmdreg); in mmc_omap_start_command()
414 mmc_omap_release_dma(struct mmc_omap_host *host, struct mmc_data *data, in mmc_omap_release_dma() argument
418 struct device *dev = mmc_dev(host->mmc); in mmc_omap_release_dma()
423 c = host->dma_tx; in mmc_omap_release_dma()
426 c = host->dma_rx; in mmc_omap_release_dma()
436 dma_unmap_sg(dev, data->sg, host->sg_len, dma_data_dir); in mmc_omap_release_dma()
441 struct mmc_omap_host *host = container_of(work, struct mmc_omap_host, in mmc_omap_send_stop_work() local
443 struct mmc_omap_slot *slot = host->current_slot; in mmc_omap_send_stop_work()
444 struct mmc_data *data = host->stop_data; in mmc_omap_send_stop_work()
450 mmc_omap_start_command(host, data->stop); in mmc_omap_send_stop_work()
454 mmc_omap_xfer_done(struct mmc_omap_host *host, struct mmc_data *data) in mmc_omap_xfer_done() argument
456 if (host->dma_in_use) in mmc_omap_xfer_done()
457 mmc_omap_release_dma(host, data, data->error); in mmc_omap_xfer_done()
459 sg_miter_stop(&host->sg_miter); in mmc_omap_xfer_done()
461 host->data = NULL; in mmc_omap_xfer_done()
462 host->sg_len = 0; in mmc_omap_xfer_done()
472 host->mrq = NULL; in mmc_omap_xfer_done()
473 mmc = host->mmc; in mmc_omap_xfer_done()
474 mmc_omap_release_slot(host->current_slot, 1); in mmc_omap_xfer_done()
479 host->stop_data = data; in mmc_omap_xfer_done()
480 queue_work(host->mmc_omap_wq, &host->send_stop_work); in mmc_omap_xfer_done()
484 mmc_omap_send_abort(struct mmc_omap_host *host, int maxloops) in mmc_omap_send_abort() argument
486 struct mmc_omap_slot *slot = host->current_slot; in mmc_omap_send_abort()
494 OMAP_MMC_WRITE(host, STAT, 0xFFFF); in mmc_omap_send_abort()
495 OMAP_MMC_WRITE(host, CMD, (3 << 12) | (1 << 7)); in mmc_omap_send_abort()
499 stat = OMAP_MMC_READ(host, STAT); in mmc_omap_send_abort()
509 OMAP_MMC_WRITE(host, STAT, stat); in mmc_omap_send_abort()
513 mmc_omap_abort_xfer(struct mmc_omap_host *host, struct mmc_data *data) in mmc_omap_abort_xfer() argument
515 if (host->dma_in_use) in mmc_omap_abort_xfer()
516 mmc_omap_release_dma(host, data, 1); in mmc_omap_abort_xfer()
518 host->data = NULL; in mmc_omap_abort_xfer()
519 host->sg_len = 0; in mmc_omap_abort_xfer()
521 mmc_omap_send_abort(host, 10000); in mmc_omap_abort_xfer()
525 mmc_omap_end_of_data(struct mmc_omap_host *host, struct mmc_data *data) in mmc_omap_end_of_data() argument
530 if (!host->dma_in_use) { in mmc_omap_end_of_data()
531 mmc_omap_xfer_done(host, data); in mmc_omap_end_of_data()
535 spin_lock_irqsave(&host->dma_lock, flags); in mmc_omap_end_of_data()
536 if (host->dma_done) in mmc_omap_end_of_data()
539 host->brs_received = 1; in mmc_omap_end_of_data()
540 spin_unlock_irqrestore(&host->dma_lock, flags); in mmc_omap_end_of_data()
542 mmc_omap_xfer_done(host, data); in mmc_omap_end_of_data()
546 mmc_omap_dma_done(struct mmc_omap_host *host, struct mmc_data *data) in mmc_omap_dma_done() argument
552 spin_lock_irqsave(&host->dma_lock, flags); in mmc_omap_dma_done()
553 if (host->brs_received) in mmc_omap_dma_done()
556 host->dma_done = 1; in mmc_omap_dma_done()
557 spin_unlock_irqrestore(&host->dma_lock, flags); in mmc_omap_dma_done()
559 mmc_omap_xfer_done(host, data); in mmc_omap_dma_done()
563 mmc_omap_cmd_done(struct mmc_omap_host *host, struct mmc_command *cmd) in mmc_omap_cmd_done() argument
565 host->cmd = NULL; in mmc_omap_cmd_done()
567 timer_delete(&host->cmd_abort_timer); in mmc_omap_cmd_done()
573 OMAP_MMC_READ(host, RSP0) | in mmc_omap_cmd_done()
574 (OMAP_MMC_READ(host, RSP1) << 16); in mmc_omap_cmd_done()
576 OMAP_MMC_READ(host, RSP2) | in mmc_omap_cmd_done()
577 (OMAP_MMC_READ(host, RSP3) << 16); in mmc_omap_cmd_done()
579 OMAP_MMC_READ(host, RSP4) | in mmc_omap_cmd_done()
580 (OMAP_MMC_READ(host, RSP5) << 16); in mmc_omap_cmd_done()
582 OMAP_MMC_READ(host, RSP6) | in mmc_omap_cmd_done()
583 (OMAP_MMC_READ(host, RSP7) << 16); in mmc_omap_cmd_done()
587 OMAP_MMC_READ(host, RSP6) | in mmc_omap_cmd_done()
588 (OMAP_MMC_READ(host, RSP7) << 16); in mmc_omap_cmd_done()
592 if (host->data == NULL || cmd->error) { in mmc_omap_cmd_done()
595 if (host->data != NULL) in mmc_omap_cmd_done()
596 mmc_omap_abort_xfer(host, host->data); in mmc_omap_cmd_done()
597 host->mrq = NULL; in mmc_omap_cmd_done()
598 mmc = host->mmc; in mmc_omap_cmd_done()
599 mmc_omap_release_slot(host->current_slot, 1); in mmc_omap_cmd_done()
610 struct mmc_omap_host *host = container_of(work, struct mmc_omap_host, in mmc_omap_abort_command() local
612 BUG_ON(!host->cmd); in mmc_omap_abort_command()
614 dev_dbg(mmc_dev(host->mmc), "Aborting stuck command CMD%d\n", in mmc_omap_abort_command()
615 host->cmd->opcode); in mmc_omap_abort_command()
617 if (host->cmd->error == 0) in mmc_omap_abort_command()
618 host->cmd->error = -ETIMEDOUT; in mmc_omap_abort_command()
620 if (host->data == NULL) { in mmc_omap_abort_command()
624 cmd = host->cmd; in mmc_omap_abort_command()
625 host->cmd = NULL; in mmc_omap_abort_command()
626 mmc_omap_send_abort(host, 10000); in mmc_omap_abort_command()
628 host->mrq = NULL; in mmc_omap_abort_command()
629 mmc = host->mmc; in mmc_omap_abort_command()
630 mmc_omap_release_slot(host->current_slot, 1); in mmc_omap_abort_command()
633 mmc_omap_cmd_done(host, host->cmd); in mmc_omap_abort_command()
635 host->abort = 0; in mmc_omap_abort_command()
636 enable_irq(host->irq); in mmc_omap_abort_command()
642 struct mmc_omap_host *host = timer_container_of(host, t, in mmc_omap_cmd_timer() local
646 spin_lock_irqsave(&host->slot_lock, flags); in mmc_omap_cmd_timer()
647 if (host->cmd != NULL && !host->abort) { in mmc_omap_cmd_timer()
648 OMAP_MMC_WRITE(host, IE, 0); in mmc_omap_cmd_timer()
649 disable_irq(host->irq); in mmc_omap_cmd_timer()
650 host->abort = 1; in mmc_omap_cmd_timer()
651 queue_work(host->mmc_omap_wq, &host->cmd_abort_work); in mmc_omap_cmd_timer()
653 spin_unlock_irqrestore(&host->slot_lock, flags); in mmc_omap_cmd_timer()
659 struct mmc_omap_host *host = timer_container_of(host, t, clk_timer); in mmc_omap_clk_timer() local
661 mmc_omap_fclk_enable(host, 0); in mmc_omap_clk_timer()
666 mmc_omap_xfer_data(struct mmc_omap_host *host, int write) in mmc_omap_xfer_data() argument
668 struct sg_mapping_iter *sgm = &host->sg_miter; in mmc_omap_xfer_data()
674 dev_err(mmc_dev(host->mmc), "ran out of scatterlist prematurely\n"); in mmc_omap_xfer_data()
682 if (n > host->total_bytes_left) in mmc_omap_xfer_data()
683 n = host->total_bytes_left; in mmc_omap_xfer_data()
689 host->total_bytes_left -= n; in mmc_omap_xfer_data()
690 host->data->bytes_xfered += n; in mmc_omap_xfer_data()
693 __raw_writesw(host->virt_base + OMAP_MMC_REG(host, DATA), in mmc_omap_xfer_data()
696 __raw_readsw(host->virt_base + OMAP_MMC_REG(host, DATA), in mmc_omap_xfer_data()
702 static void mmc_omap_report_irq(struct mmc_omap_host *host, u16 status) in mmc_omap_report_irq() argument
716 dev_vdbg(mmc_dev(host->mmc), "%s\n", res); in mmc_omap_report_irq()
719 static void mmc_omap_report_irq(struct mmc_omap_host *host, u16 status) in mmc_omap_report_irq() argument
727 struct mmc_omap_host * host = (struct mmc_omap_host *)dev_id; in mmc_omap_irq() local
733 if (host->cmd == NULL && host->data == NULL) { in mmc_omap_irq()
734 status = OMAP_MMC_READ(host, STAT); in mmc_omap_irq()
735 dev_info(mmc_dev(host->slots[0]->mmc), in mmc_omap_irq()
738 OMAP_MMC_WRITE(host, STAT, status); in mmc_omap_irq()
739 OMAP_MMC_WRITE(host, IE, 0); in mmc_omap_irq()
749 while ((status = OMAP_MMC_READ(host, STAT)) != 0) { in mmc_omap_irq()
752 OMAP_MMC_WRITE(host, STAT, status); in mmc_omap_irq()
753 if (host->cmd != NULL) in mmc_omap_irq()
754 cmd = host->cmd->opcode; in mmc_omap_irq()
757 dev_dbg(mmc_dev(host->mmc), "MMC IRQ %04x (CMD %d): ", in mmc_omap_irq()
759 mmc_omap_report_irq(host, status); in mmc_omap_irq()
761 if (host->total_bytes_left) { in mmc_omap_irq()
764 mmc_omap_xfer_data(host, 0); in mmc_omap_irq()
766 mmc_omap_xfer_data(host, 1); in mmc_omap_irq()
773 dev_dbg(mmc_dev(host->mmc), "data timeout (CMD%d)\n", in mmc_omap_irq()
775 if (host->data) { in mmc_omap_irq()
776 host->data->error = -ETIMEDOUT; in mmc_omap_irq()
782 if (host->data) { in mmc_omap_irq()
783 host->data->error = -EILSEQ; in mmc_omap_irq()
784 dev_dbg(mmc_dev(host->mmc), in mmc_omap_irq()
786 host->total_bytes_left); in mmc_omap_irq()
789 dev_dbg(mmc_dev(host->mmc), "data CRC error\n"); in mmc_omap_irq()
795 if (host->cmd) { in mmc_omap_irq()
797 host->current_slot; in mmc_omap_irq()
800 dev_err(mmc_dev(host->mmc), in mmc_omap_irq()
803 host->cmd->error = -ETIMEDOUT; in mmc_omap_irq()
810 if (host->cmd) { in mmc_omap_irq()
811 dev_err(mmc_dev(host->mmc), in mmc_omap_irq()
813 cmd, host->cmd->arg); in mmc_omap_irq()
814 host->cmd->error = -EILSEQ; in mmc_omap_irq()
818 dev_err(mmc_dev(host->mmc), in mmc_omap_irq()
823 dev_dbg(mmc_dev(host->mmc), in mmc_omap_irq()
839 if (cmd_error && host->data) { in mmc_omap_irq()
840 timer_delete(&host->cmd_abort_timer); in mmc_omap_irq()
841 host->abort = 1; in mmc_omap_irq()
842 OMAP_MMC_WRITE(host, IE, 0); in mmc_omap_irq()
843 disable_irq_nosync(host->irq); in mmc_omap_irq()
844 queue_work(host->mmc_omap_wq, &host->cmd_abort_work); in mmc_omap_irq()
848 if (end_command && host->cmd) in mmc_omap_irq()
849 mmc_omap_cmd_done(host, host->cmd); in mmc_omap_irq()
850 if (host->data != NULL) { in mmc_omap_irq()
852 mmc_omap_xfer_done(host, host->data); in mmc_omap_irq()
854 mmc_omap_end_of_data(host, host->data); in mmc_omap_irq()
863 struct mmc_omap_host *host = dev_get_drvdata(dev); in omap_mmc_notify_cover_event() local
864 struct mmc_omap_slot *slot = host->slots[num]; in omap_mmc_notify_cover_event()
866 BUG_ON(num >= host->nr_slots); in omap_mmc_notify_cover_event()
869 if (host->nr_slots == 0 || !host->slots[num]) in omap_mmc_notify_cover_event()
909 struct mmc_omap_host *host = priv; in mmc_omap_dma_callback() local
910 struct mmc_data *data = host->data; in mmc_omap_dma_callback()
915 mmc_omap_dma_done(host, data); in mmc_omap_dma_callback()
918 static inline void set_cmd_timeout(struct mmc_omap_host *host, struct mmc_request *req) in set_cmd_timeout() argument
922 reg = OMAP_MMC_READ(host, SDIO); in set_cmd_timeout()
924 OMAP_MMC_WRITE(host, SDIO, reg); in set_cmd_timeout()
926 OMAP_MMC_WRITE(host, CTO, 0xfd); in set_cmd_timeout()
929 static inline void set_data_timeout(struct mmc_omap_host *host, struct mmc_request *req) in set_data_timeout() argument
934 cycle_ns = 1000000000 / host->current_slot->fclk_freq; in set_data_timeout()
939 reg = OMAP_MMC_READ(host, SDIO); in set_data_timeout()
945 OMAP_MMC_WRITE(host, SDIO, reg); in set_data_timeout()
946 OMAP_MMC_WRITE(host, DTO, timeout); in set_data_timeout()
950 mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req) in mmc_omap_prepare_data() argument
958 host->data = data; in mmc_omap_prepare_data()
960 OMAP_MMC_WRITE(host, BLEN, 0); in mmc_omap_prepare_data()
961 OMAP_MMC_WRITE(host, NBLK, 0); in mmc_omap_prepare_data()
962 OMAP_MMC_WRITE(host, BUF, 0); in mmc_omap_prepare_data()
963 host->dma_in_use = 0; in mmc_omap_prepare_data()
964 set_cmd_timeout(host, req); in mmc_omap_prepare_data()
970 OMAP_MMC_WRITE(host, NBLK, data->blocks - 1); in mmc_omap_prepare_data()
971 OMAP_MMC_WRITE(host, BLEN, block_size - 1); in mmc_omap_prepare_data()
972 set_data_timeout(host, req); in mmc_omap_prepare_data()
1007 c = host->dma_tx; in mmc_omap_prepare_data()
1008 bp = &host->dma_tx_burst; in mmc_omap_prepare_data()
1012 c = host->dma_rx; in mmc_omap_prepare_data()
1013 bp = &host->dma_rx_burst; in mmc_omap_prepare_data()
1024 .src_addr = host->phys_base + in mmc_omap_prepare_data()
1025 OMAP_MMC_REG(host, DATA), in mmc_omap_prepare_data()
1026 .dst_addr = host->phys_base + in mmc_omap_prepare_data()
1027 OMAP_MMC_REG(host, DATA), in mmc_omap_prepare_data()
1040 host->sg_len = dma_map_sg(c->device->dev, data->sg, sg_len, in mmc_omap_prepare_data()
1042 if (host->sg_len == 0) in mmc_omap_prepare_data()
1045 tx = dmaengine_prep_slave_sg(c, data->sg, host->sg_len, in mmc_omap_prepare_data()
1051 OMAP_MMC_WRITE(host, BUF, buf); in mmc_omap_prepare_data()
1054 tx->callback_param = host; in mmc_omap_prepare_data()
1056 host->brs_received = 0; in mmc_omap_prepare_data()
1057 host->dma_done = 0; in mmc_omap_prepare_data()
1058 host->dma_in_use = 1; in mmc_omap_prepare_data()
1064 OMAP_MMC_WRITE(host, BUF, 0x1f1f); in mmc_omap_prepare_data()
1065 host->total_bytes_left = data->blocks * block_size; in mmc_omap_prepare_data()
1066 host->sg_len = sg_len; in mmc_omap_prepare_data()
1071 sg_miter_start(&host->sg_miter, data->sg, data->sg_len, miter_flags); in mmc_omap_prepare_data()
1072 host->dma_in_use = 0; in mmc_omap_prepare_data()
1075 static void mmc_omap_start_request(struct mmc_omap_host *host, in mmc_omap_start_request() argument
1078 BUG_ON(host->mrq != NULL); in mmc_omap_start_request()
1080 host->mrq = req; in mmc_omap_start_request()
1083 mmc_omap_prepare_data(host, req); in mmc_omap_start_request()
1084 mmc_omap_start_command(host, req->cmd); in mmc_omap_start_request()
1085 if (host->dma_in_use) { in mmc_omap_start_request()
1086 struct dma_chan *c = host->data->flags & MMC_DATA_WRITE ? in mmc_omap_start_request()
1087 host->dma_tx : host->dma_rx; in mmc_omap_start_request()
1096 struct mmc_omap_host *host = slot->host; in mmc_omap_request() local
1099 spin_lock_irqsave(&host->slot_lock, flags); in mmc_omap_request()
1100 if (host->mmc != NULL) { in mmc_omap_request()
1103 spin_unlock_irqrestore(&host->slot_lock, flags); in mmc_omap_request()
1106 host->mmc = mmc; in mmc_omap_request()
1107 spin_unlock_irqrestore(&host->slot_lock, flags); in mmc_omap_request()
1109 mmc_omap_start_request(host, req); in mmc_omap_request()
1115 struct mmc_omap_host *host; in mmc_omap_set_power() local
1117 host = slot->host; in mmc_omap_set_power()
1146 w = OMAP_MMC_READ(host, CON); in mmc_omap_set_power()
1147 OMAP_MMC_WRITE(host, CON, w | (1 << 11)); in mmc_omap_set_power()
1149 w = OMAP_MMC_READ(host, CON); in mmc_omap_set_power()
1150 OMAP_MMC_WRITE(host, CON, w & ~(1 << 11)); in mmc_omap_set_power()
1158 struct mmc_omap_host *host = slot->host; in mmc_omap_calc_divisor() local
1159 int func_clk_rate = clk_get_rate(host->fclk); in mmc_omap_calc_divisor()
1186 struct mmc_omap_host *host = slot->host; in mmc_omap_set_ios() local
1209 mmc_omap_fclk_enable(host, 1); in mmc_omap_set_ios()
1230 OMAP_MMC_WRITE(host, CON, dsor); in mmc_omap_set_ios()
1237 OMAP_MMC_WRITE(host, IE, 0); in mmc_omap_set_ios()
1238 OMAP_MMC_WRITE(host, STAT, 0xffff); in mmc_omap_set_ios()
1239 OMAP_MMC_WRITE(host, CMD, 1 << 7); in mmc_omap_set_ios()
1240 while (usecs > 0 && (OMAP_MMC_READ(host, STAT) & 1) == 0) { in mmc_omap_set_ios()
1244 OMAP_MMC_WRITE(host, STAT, 1); in mmc_omap_set_ios()
1256 static int mmc_omap_new_slot(struct mmc_omap_host *host, int id) in mmc_omap_new_slot() argument
1262 mmc = devm_mmc_alloc_host(host->dev, sizeof(*slot)); in mmc_omap_new_slot()
1267 slot->host = host; in mmc_omap_new_slot()
1271 slot->pdata = &host->pdata->slots[id]; in mmc_omap_new_slot()
1274 slot->vsd = devm_gpiod_get_index_optional(host->dev, "vsd", in mmc_omap_new_slot()
1277 return dev_err_probe(host->dev, PTR_ERR(slot->vsd), in mmc_omap_new_slot()
1280 slot->vio = devm_gpiod_get_index_optional(host->dev, "vio", in mmc_omap_new_slot()
1283 return dev_err_probe(host->dev, PTR_ERR(slot->vio), in mmc_omap_new_slot()
1286 slot->cover = devm_gpiod_get_index_optional(host->dev, "cover", in mmc_omap_new_slot()
1289 return dev_err_probe(host->dev, PTR_ERR(slot->cover), in mmc_omap_new_slot()
1292 host->slots[id] = slot; in mmc_omap_new_slot()
1295 if (host->pdata->slots[id].wires >= 4) in mmc_omap_new_slot()
1305 if (host->pdata->max_freq) in mmc_omap_new_slot()
1306 mmc->f_max = min(host->pdata->max_freq, mmc->f_max); in mmc_omap_new_slot()
1364 flush_workqueue(slot->host->mmc_omap_wq); in mmc_omap_remove_slot()
1372 struct mmc_omap_host *host = NULL; in mmc_omap_probe() local
1386 host = devm_kzalloc(&pdev->dev, sizeof(struct mmc_omap_host), in mmc_omap_probe()
1388 if (host == NULL) in mmc_omap_probe()
1395 host->virt_base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); in mmc_omap_probe()
1396 if (IS_ERR(host->virt_base)) in mmc_omap_probe()
1397 return PTR_ERR(host->virt_base); in mmc_omap_probe()
1399 INIT_WORK(&host->slot_release_work, mmc_omap_slot_release_work); in mmc_omap_probe()
1400 INIT_WORK(&host->send_stop_work, mmc_omap_send_stop_work); in mmc_omap_probe()
1402 INIT_WORK(&host->cmd_abort_work, mmc_omap_abort_command); in mmc_omap_probe()
1403 timer_setup(&host->cmd_abort_timer, mmc_omap_cmd_timer, 0); in mmc_omap_probe()
1405 spin_lock_init(&host->clk_lock); in mmc_omap_probe()
1406 timer_setup(&host->clk_timer, mmc_omap_clk_timer, 0); in mmc_omap_probe()
1408 spin_lock_init(&host->dma_lock); in mmc_omap_probe()
1409 spin_lock_init(&host->slot_lock); in mmc_omap_probe()
1410 init_waitqueue_head(&host->slot_wq); in mmc_omap_probe()
1412 host->pdata = pdata; in mmc_omap_probe()
1413 host->features = host->pdata->slots[0].features; in mmc_omap_probe()
1414 host->dev = &pdev->dev; in mmc_omap_probe()
1415 platform_set_drvdata(pdev, host); in mmc_omap_probe()
1417 host->slot_switch = devm_gpiod_get_optional(host->dev, "switch", in mmc_omap_probe()
1419 if (IS_ERR(host->slot_switch)) in mmc_omap_probe()
1420 return dev_err_probe(host->dev, PTR_ERR(host->slot_switch), in mmc_omap_probe()
1423 host->id = pdev->id; in mmc_omap_probe()
1424 host->irq = irq; in mmc_omap_probe()
1425 host->phys_base = res->start; in mmc_omap_probe()
1426 host->iclk = clk_get(&pdev->dev, "ick"); in mmc_omap_probe()
1427 if (IS_ERR(host->iclk)) in mmc_omap_probe()
1428 return PTR_ERR(host->iclk); in mmc_omap_probe()
1429 clk_prepare_enable(host->iclk); in mmc_omap_probe()
1431 host->fclk = clk_get(&pdev->dev, "fck"); in mmc_omap_probe()
1432 if (IS_ERR(host->fclk)) { in mmc_omap_probe()
1433 ret = PTR_ERR(host->fclk); in mmc_omap_probe()
1437 ret = clk_prepare(host->fclk); in mmc_omap_probe()
1441 host->dma_tx_burst = -1; in mmc_omap_probe()
1442 host->dma_rx_burst = -1; in mmc_omap_probe()
1444 host->dma_tx = dma_request_chan(&pdev->dev, "tx"); in mmc_omap_probe()
1445 if (IS_ERR(host->dma_tx)) { in mmc_omap_probe()
1446 ret = PTR_ERR(host->dma_tx); in mmc_omap_probe()
1450 host->dma_tx = NULL; in mmc_omap_probe()
1451 dev_warn(host->dev, "TX DMA channel request failed\n"); in mmc_omap_probe()
1454 host->dma_rx = dma_request_chan(&pdev->dev, "rx"); in mmc_omap_probe()
1455 if (IS_ERR(host->dma_rx)) { in mmc_omap_probe()
1456 ret = PTR_ERR(host->dma_rx); in mmc_omap_probe()
1458 if (host->dma_tx) in mmc_omap_probe()
1459 dma_release_channel(host->dma_tx); in mmc_omap_probe()
1463 host->dma_rx = NULL; in mmc_omap_probe()
1464 dev_warn(host->dev, "RX DMA channel request failed\n"); in mmc_omap_probe()
1467 ret = request_irq(host->irq, mmc_omap_irq, 0, DRIVER_NAME, host); in mmc_omap_probe()
1477 host->nr_slots = pdata->nr_slots; in mmc_omap_probe()
1478 host->reg_shift = (mmc_omap7xx() ? 1 : 2); in mmc_omap_probe()
1480 host->mmc_omap_wq = alloc_workqueue("mmc_omap", 0, 0); in mmc_omap_probe()
1481 if (!host->mmc_omap_wq) { in mmc_omap_probe()
1487 ret = mmc_omap_new_slot(host, i); in mmc_omap_probe()
1490 mmc_omap_remove_slot(host->slots[i]); in mmc_omap_probe()
1499 destroy_workqueue(host->mmc_omap_wq); in mmc_omap_probe()
1504 free_irq(host->irq, host); in mmc_omap_probe()
1506 if (host->dma_tx) in mmc_omap_probe()
1507 dma_release_channel(host->dma_tx); in mmc_omap_probe()
1508 if (host->dma_rx) in mmc_omap_probe()
1509 dma_release_channel(host->dma_rx); in mmc_omap_probe()
1511 clk_unprepare(host->fclk); in mmc_omap_probe()
1513 clk_put(host->fclk); in mmc_omap_probe()
1515 clk_disable_unprepare(host->iclk); in mmc_omap_probe()
1516 clk_put(host->iclk); in mmc_omap_probe()
1522 struct mmc_omap_host *host = platform_get_drvdata(pdev); in mmc_omap_remove() local
1525 BUG_ON(host == NULL); in mmc_omap_remove()
1527 for (i = 0; i < host->nr_slots; i++) in mmc_omap_remove()
1528 mmc_omap_remove_slot(host->slots[i]); in mmc_omap_remove()
1530 if (host->pdata->cleanup) in mmc_omap_remove()
1531 host->pdata->cleanup(&pdev->dev); in mmc_omap_remove()
1533 mmc_omap_fclk_enable(host, 0); in mmc_omap_remove()
1534 free_irq(host->irq, host); in mmc_omap_remove()
1535 clk_unprepare(host->fclk); in mmc_omap_remove()
1536 clk_put(host->fclk); in mmc_omap_remove()
1537 clk_disable_unprepare(host->iclk); in mmc_omap_remove()
1538 clk_put(host->iclk); in mmc_omap_remove()
1540 if (host->dma_tx) in mmc_omap_remove()
1541 dma_release_channel(host->dma_tx); in mmc_omap_remove()
1542 if (host->dma_rx) in mmc_omap_remove()
1543 dma_release_channel(host->dma_rx); in mmc_omap_remove()
1545 destroy_workqueue(host->mmc_omap_wq); in mmc_omap_remove()