Lines Matching refs:host
135 #define dbg(host, channels, args...) \ argument
138 dev_err(&host->pdev->dev, args); \
140 dev_info(&host->pdev->dev, args); \
142 dev_dbg(&host->pdev->dev, args); \
145 static void finalize_request(struct s3cmci_host *host);
147 static void s3cmci_reset(struct s3cmci_host *host);
151 static void dbg_dumpregs(struct s3cmci_host *host, char *prefix) in dbg_dumpregs() argument
156 con = readl(host->base + S3C2410_SDICON); in dbg_dumpregs()
157 pre = readl(host->base + S3C2410_SDIPRE); in dbg_dumpregs()
158 cmdarg = readl(host->base + S3C2410_SDICMDARG); in dbg_dumpregs()
159 cmdcon = readl(host->base + S3C2410_SDICMDCON); in dbg_dumpregs()
160 cmdsta = readl(host->base + S3C2410_SDICMDSTAT); in dbg_dumpregs()
161 r0 = readl(host->base + S3C2410_SDIRSP0); in dbg_dumpregs()
162 r1 = readl(host->base + S3C2410_SDIRSP1); in dbg_dumpregs()
163 r2 = readl(host->base + S3C2410_SDIRSP2); in dbg_dumpregs()
164 r3 = readl(host->base + S3C2410_SDIRSP3); in dbg_dumpregs()
165 timer = readl(host->base + S3C2410_SDITIMER); in dbg_dumpregs()
166 bsize = readl(host->base + S3C2410_SDIBSIZE); in dbg_dumpregs()
167 datcon = readl(host->base + S3C2410_SDIDCON); in dbg_dumpregs()
168 datcnt = readl(host->base + S3C2410_SDIDCNT); in dbg_dumpregs()
169 datsta = readl(host->base + S3C2410_SDIDSTA); in dbg_dumpregs()
170 fsta = readl(host->base + S3C2410_SDIFSTA); in dbg_dumpregs()
171 imask = readl(host->base + host->sdiimsk); in dbg_dumpregs()
173 dbg(host, dbg_debug, "%s CON:[%08x] PRE:[%08x] TMR:[%08x]\n", in dbg_dumpregs()
176 dbg(host, dbg_debug, "%s CCON:[%08x] CARG:[%08x] CSTA:[%08x]\n", in dbg_dumpregs()
179 dbg(host, dbg_debug, "%s DCON:[%08x] FSTA:[%08x]" in dbg_dumpregs()
183 dbg(host, dbg_debug, "%s R0:[%08x] R1:[%08x]" in dbg_dumpregs()
188 static void prepare_dbgmsg(struct s3cmci_host *host, struct mmc_command *cmd, in prepare_dbgmsg() argument
191 snprintf(host->dbgmsg_cmd, 300, in prepare_dbgmsg()
193 host->ccnt, (stop ? " (STOP)" : ""), in prepare_dbgmsg()
197 snprintf(host->dbgmsg_dat, 300, in prepare_dbgmsg()
199 host->dcnt, cmd->data->blksz, in prepare_dbgmsg()
203 host->dbgmsg_dat[0] = '\0'; in prepare_dbgmsg()
207 static void dbg_dumpcmd(struct s3cmci_host *host, struct mmc_command *cmd, in dbg_dumpcmd() argument
216 dbg(host, dbglvl, "CMD[OK] %s R0:0x%08x\n", in dbg_dumpcmd()
217 host->dbgmsg_cmd, cmd->resp[0]); in dbg_dumpcmd()
219 dbg(host, dbglvl, "CMD[ERR %i] %s Status:%s\n", in dbg_dumpcmd()
220 cmd->error, host->dbgmsg_cmd, host->status); in dbg_dumpcmd()
227 dbg(host, dbglvl, "DAT[OK] %s\n", host->dbgmsg_dat); in dbg_dumpcmd()
229 dbg(host, dbglvl, "DAT[ERR %i] %s DCNT:0x%08x\n", in dbg_dumpcmd()
230 cmd->data->error, host->dbgmsg_dat, in dbg_dumpcmd()
231 readl(host->base + S3C2410_SDIDCNT)); in dbg_dumpcmd()
235 static void dbg_dumpcmd(struct s3cmci_host *host, in dbg_dumpcmd() argument
238 static void prepare_dbgmsg(struct s3cmci_host *host, struct mmc_command *cmd, in prepare_dbgmsg() argument
241 static void dbg_dumpregs(struct s3cmci_host *host, char *prefix) { } in dbg_dumpregs() argument
253 static inline bool s3cmci_host_usedma(struct s3cmci_host *host) in s3cmci_host_usedma() argument
262 static inline u32 enable_imask(struct s3cmci_host *host, u32 imask) in enable_imask() argument
266 newmask = readl(host->base + host->sdiimsk); in enable_imask()
269 writel(newmask, host->base + host->sdiimsk); in enable_imask()
274 static inline u32 disable_imask(struct s3cmci_host *host, u32 imask) in disable_imask() argument
278 newmask = readl(host->base + host->sdiimsk); in disable_imask()
281 writel(newmask, host->base + host->sdiimsk); in disable_imask()
286 static inline void clear_imask(struct s3cmci_host *host) in clear_imask() argument
288 u32 mask = readl(host->base + host->sdiimsk); in clear_imask()
292 writel(mask, host->base + host->sdiimsk); in clear_imask()
307 static void s3cmci_check_sdio_irq(struct s3cmci_host *host) in s3cmci_check_sdio_irq() argument
309 if (host->sdio_irqen) { in s3cmci_check_sdio_irq()
312 mmc_signal_sdio_irq(host->mmc); in s3cmci_check_sdio_irq()
317 static inline int get_data_buffer(struct s3cmci_host *host, in get_data_buffer() argument
322 if (host->pio_active == XFER_NONE) in get_data_buffer()
325 if ((!host->mrq) || (!host->mrq->data)) in get_data_buffer()
328 if (host->pio_sgptr >= host->mrq->data->sg_len) { in get_data_buffer()
329 dbg(host, dbg_debug, "no more buffers (%i/%i)\n", in get_data_buffer()
330 host->pio_sgptr, host->mrq->data->sg_len); in get_data_buffer()
333 sg = &host->mrq->data->sg[host->pio_sgptr]; in get_data_buffer()
338 host->pio_sgptr++; in get_data_buffer()
340 dbg(host, dbg_sg, "new buffer (%i/%i)\n", in get_data_buffer()
341 host->pio_sgptr, host->mrq->data->sg_len); in get_data_buffer()
346 static inline u32 fifo_count(struct s3cmci_host *host) in fifo_count() argument
348 u32 fifostat = readl(host->base + S3C2410_SDIFSTA); in fifo_count()
354 static inline u32 fifo_free(struct s3cmci_host *host) in fifo_free() argument
356 u32 fifostat = readl(host->base + S3C2410_SDIFSTA); in fifo_free()
375 static void s3cmci_enable_irq(struct s3cmci_host *host, bool more) in s3cmci_enable_irq() argument
382 host->irq_enabled = more; in s3cmci_enable_irq()
383 host->irq_disabled = false; in s3cmci_enable_irq()
385 enable = more | host->sdio_irqen; in s3cmci_enable_irq()
387 if (host->irq_state != enable) { in s3cmci_enable_irq()
388 host->irq_state = enable; in s3cmci_enable_irq()
391 enable_irq(host->irq); in s3cmci_enable_irq()
393 disable_irq(host->irq); in s3cmci_enable_irq()
402 static void s3cmci_disable_irq(struct s3cmci_host *host, bool transfer) in s3cmci_disable_irq() argument
410 host->irq_disabled = transfer; in s3cmci_disable_irq()
412 if (transfer && host->irq_state) { in s3cmci_disable_irq()
413 host->irq_state = false; in s3cmci_disable_irq()
414 disable_irq(host->irq); in s3cmci_disable_irq()
420 static void do_pio_read(struct s3cmci_host *host) in do_pio_read() argument
429 writel(host->prescaler, host->base + S3C2410_SDIPRE); in do_pio_read()
431 from_ptr = host->base + host->sdidata; in do_pio_read()
433 while ((fifo = fifo_count(host))) { in do_pio_read()
434 if (!host->pio_bytes) { in do_pio_read()
435 res = get_data_buffer(host, &host->pio_bytes, in do_pio_read()
436 &host->pio_ptr); in do_pio_read()
438 host->pio_active = XFER_NONE; in do_pio_read()
439 host->complete_what = COMPLETION_FINALIZE; in do_pio_read()
441 dbg(host, dbg_pio, "pio_read(): " in do_pio_read()
446 dbg(host, dbg_pio, in do_pio_read()
448 host->pio_bytes, host->pio_ptr); in do_pio_read()
451 dbg(host, dbg_pio, in do_pio_read()
453 fifo, host->pio_bytes, in do_pio_read()
454 readl(host->base + S3C2410_SDIDCNT)); in do_pio_read()
461 if (fifo >= host->pio_bytes) in do_pio_read()
462 fifo = host->pio_bytes; in do_pio_read()
466 host->pio_bytes -= fifo; in do_pio_read()
467 host->pio_count += fifo; in do_pio_read()
470 ptr = host->pio_ptr; in do_pio_read()
473 host->pio_ptr = ptr; in do_pio_read()
478 u8 *p = (u8 *)host->pio_ptr; in do_pio_read()
487 if (!host->pio_bytes) { in do_pio_read()
488 res = get_data_buffer(host, &host->pio_bytes, &host->pio_ptr); in do_pio_read()
490 dbg(host, dbg_pio, in do_pio_read()
492 host->pio_active = XFER_NONE; in do_pio_read()
493 host->complete_what = COMPLETION_FINALIZE; in do_pio_read()
499 enable_imask(host, in do_pio_read()
503 static void do_pio_write(struct s3cmci_host *host) in do_pio_write() argument
510 to_ptr = host->base + host->sdidata; in do_pio_write()
512 while ((fifo = fifo_free(host)) > 3) { in do_pio_write()
513 if (!host->pio_bytes) { in do_pio_write()
514 res = get_data_buffer(host, &host->pio_bytes, in do_pio_write()
515 &host->pio_ptr); in do_pio_write()
517 dbg(host, dbg_pio, in do_pio_write()
519 host->pio_active = XFER_NONE; in do_pio_write()
524 dbg(host, dbg_pio, in do_pio_write()
526 host->pio_bytes, host->pio_ptr); in do_pio_write()
534 if (fifo >= host->pio_bytes) in do_pio_write()
535 fifo = host->pio_bytes; in do_pio_write()
539 host->pio_bytes -= fifo; in do_pio_write()
540 host->pio_count += fifo; in do_pio_write()
543 ptr = host->pio_ptr; in do_pio_write()
546 host->pio_ptr = ptr; in do_pio_write()
549 enable_imask(host, S3C2410_SDIIMSK_TXFIFOHALF); in do_pio_write()
554 struct s3cmci_host *host = (struct s3cmci_host *) data; in pio_tasklet() local
556 s3cmci_disable_irq(host, true); in pio_tasklet()
558 if (host->pio_active == XFER_WRITE) in pio_tasklet()
559 do_pio_write(host); in pio_tasklet()
561 if (host->pio_active == XFER_READ) in pio_tasklet()
562 do_pio_read(host); in pio_tasklet()
564 if (host->complete_what == COMPLETION_FINALIZE) { in pio_tasklet()
565 clear_imask(host); in pio_tasklet()
566 if (host->pio_active != XFER_NONE) { in pio_tasklet()
567 dbg(host, dbg_err, "unfinished %s " in pio_tasklet()
569 (host->pio_active == XFER_READ) ? "read" : "write", in pio_tasklet()
570 host->pio_count, host->pio_bytes); in pio_tasklet()
572 if (host->mrq->data) in pio_tasklet()
573 host->mrq->data->error = -EINVAL; in pio_tasklet()
576 s3cmci_enable_irq(host, false); in pio_tasklet()
577 finalize_request(host); in pio_tasklet()
579 s3cmci_enable_irq(host, true); in pio_tasklet()
611 struct s3cmci_host *host = dev_id; in s3cmci_irq() local
617 mci_dsta = readl(host->base + S3C2410_SDIDSTA); in s3cmci_irq()
618 mci_imsk = readl(host->base + host->sdiimsk); in s3cmci_irq()
623 writel(mci_dclear, host->base + S3C2410_SDIDSTA); in s3cmci_irq()
625 mmc_signal_sdio_irq(host->mmc); in s3cmci_irq()
630 spin_lock_irqsave(&host->complete_lock, iflags); in s3cmci_irq()
632 mci_csta = readl(host->base + S3C2410_SDICMDSTAT); in s3cmci_irq()
633 mci_dcnt = readl(host->base + S3C2410_SDIDCNT); in s3cmci_irq()
634 mci_fsta = readl(host->base + S3C2410_SDIFSTA); in s3cmci_irq()
637 if ((host->complete_what == COMPLETION_NONE) || in s3cmci_irq()
638 (host->complete_what == COMPLETION_FINALIZE)) { in s3cmci_irq()
639 host->status = "nothing to complete"; in s3cmci_irq()
640 clear_imask(host); in s3cmci_irq()
644 if (!host->mrq) { in s3cmci_irq()
645 host->status = "no active mrq"; in s3cmci_irq()
646 clear_imask(host); in s3cmci_irq()
650 cmd = host->cmd_is_stop ? host->mrq->stop : host->mrq->cmd; in s3cmci_irq()
653 host->status = "no active cmd"; in s3cmci_irq()
654 clear_imask(host); in s3cmci_irq()
658 if (!s3cmci_host_usedma(host)) { in s3cmci_irq()
659 if ((host->pio_active == XFER_WRITE) && in s3cmci_irq()
662 disable_imask(host, S3C2410_SDIIMSK_TXFIFOHALF); in s3cmci_irq()
663 tasklet_schedule(&host->pio_tasklet); in s3cmci_irq()
664 host->status = "pio tx"; in s3cmci_irq()
667 if ((host->pio_active == XFER_READ) && in s3cmci_irq()
670 disable_imask(host, in s3cmci_irq()
674 tasklet_schedule(&host->pio_tasklet); in s3cmci_irq()
675 host->status = "pio rx"; in s3cmci_irq()
680 dbg(host, dbg_err, "CMDSTAT: error CMDTIMEOUT\n"); in s3cmci_irq()
682 host->status = "error: command timeout"; in s3cmci_irq()
687 if (host->complete_what == COMPLETION_CMDSENT) { in s3cmci_irq()
688 host->status = "ok: command sent"; in s3cmci_irq()
697 if (host->mrq->cmd->flags & MMC_RSP_136) { in s3cmci_irq()
698 dbg(host, dbg_irq, in s3cmci_irq()
716 if (host->complete_what == COMPLETION_RSPFIN) { in s3cmci_irq()
717 host->status = "ok: command response received"; in s3cmci_irq()
721 if (host->complete_what == COMPLETION_XFERFINISH_RSPFIN) in s3cmci_irq()
722 host->complete_what = COMPLETION_XFERFINISH; in s3cmci_irq()
734 if (host->is2440) { in s3cmci_irq()
736 dbg(host, dbg_err, "FIFO failure\n"); in s3cmci_irq()
737 host->mrq->data->error = -EILSEQ; in s3cmci_irq()
738 host->status = "error: 2440 fifo failure"; in s3cmci_irq()
743 dbg(host, dbg_err, "FIFO failure\n"); in s3cmci_irq()
745 host->status = "error: fifo failure"; in s3cmci_irq()
751 dbg(host, dbg_err, "bad data crc (outgoing)\n"); in s3cmci_irq()
753 host->status = "error: bad data crc (outgoing)"; in s3cmci_irq()
758 dbg(host, dbg_err, "bad data crc (incoming)\n"); in s3cmci_irq()
760 host->status = "error: bad data crc (incoming)"; in s3cmci_irq()
765 dbg(host, dbg_err, "data timeout\n"); in s3cmci_irq()
767 host->status = "error: data timeout"; in s3cmci_irq()
772 if (host->complete_what == COMPLETION_XFERFINISH) { in s3cmci_irq()
773 host->status = "ok: data transfer completed"; in s3cmci_irq()
777 if (host->complete_what == COMPLETION_XFERFINISH_RSPFIN) in s3cmci_irq()
778 host->complete_what = COMPLETION_RSPFIN; in s3cmci_irq()
784 writel(mci_cclear, host->base + S3C2410_SDICMDSTAT); in s3cmci_irq()
785 writel(mci_dclear, host->base + S3C2410_SDIDSTA); in s3cmci_irq()
790 host->pio_active = XFER_NONE; in s3cmci_irq()
793 host->complete_what = COMPLETION_FINALIZE; in s3cmci_irq()
795 clear_imask(host); in s3cmci_irq()
796 tasklet_schedule(&host->pio_tasklet); in s3cmci_irq()
801 dbg(host, dbg_irq, in s3cmci_irq()
803 mci_csta, mci_dsta, mci_fsta, mci_dcnt, host->status); in s3cmci_irq()
805 spin_unlock_irqrestore(&host->complete_lock, iflags); in s3cmci_irq()
816 struct s3cmci_host *host = (struct s3cmci_host *)dev_id; in s3cmci_irq_cd() local
818 dbg(host, dbg_irq, "card detect\n"); in s3cmci_irq_cd()
820 mmc_detect_change(host->mmc, msecs_to_jiffies(500)); in s3cmci_irq_cd()
827 struct s3cmci_host *host = arg; in s3cmci_dma_done_callback() local
830 BUG_ON(!host->mrq); in s3cmci_dma_done_callback()
831 BUG_ON(!host->mrq->data); in s3cmci_dma_done_callback()
833 spin_lock_irqsave(&host->complete_lock, iflags); in s3cmci_dma_done_callback()
835 dbg(host, dbg_dma, "DMA FINISHED\n"); in s3cmci_dma_done_callback()
837 host->dma_complete = 1; in s3cmci_dma_done_callback()
838 host->complete_what = COMPLETION_FINALIZE; in s3cmci_dma_done_callback()
840 tasklet_schedule(&host->pio_tasklet); in s3cmci_dma_done_callback()
841 spin_unlock_irqrestore(&host->complete_lock, iflags); in s3cmci_dma_done_callback()
845 static void finalize_request(struct s3cmci_host *host) in finalize_request() argument
847 struct mmc_request *mrq = host->mrq; in finalize_request()
851 if (host->complete_what != COMPLETION_FINALIZE) in finalize_request()
856 cmd = host->cmd_is_stop ? mrq->stop : mrq->cmd; in finalize_request()
860 if (s3cmci_host_usedma(host) && (!host->dma_complete)) { in finalize_request()
861 dbg(host, dbg_dma, "DMA Missing (%d)!\n", in finalize_request()
862 host->dma_complete); in finalize_request()
868 cmd->resp[0] = readl(host->base + S3C2410_SDIRSP0); in finalize_request()
869 cmd->resp[1] = readl(host->base + S3C2410_SDIRSP1); in finalize_request()
870 cmd->resp[2] = readl(host->base + S3C2410_SDIRSP2); in finalize_request()
871 cmd->resp[3] = readl(host->base + S3C2410_SDIRSP3); in finalize_request()
873 writel(host->prescaler, host->base + S3C2410_SDIPRE); in finalize_request()
881 dbg_dumpcmd(host, cmd, debug_as_failure); in finalize_request()
884 writel(0, host->base + S3C2410_SDICMDARG); in finalize_request()
885 writel(S3C2410_SDIDCON_STOP, host->base + S3C2410_SDIDCON); in finalize_request()
886 writel(0, host->base + S3C2410_SDICMDCON); in finalize_request()
887 clear_imask(host); in finalize_request()
892 if (cmd->data && cmd->data->stop && (!host->cmd_is_stop)) { in finalize_request()
893 host->cmd_is_stop = 1; in finalize_request()
894 s3cmci_send_request(host->mmc); in finalize_request()
913 if (s3cmci_host_usedma(host)) in finalize_request()
914 dmaengine_terminate_all(host->dma); in finalize_request()
916 if (host->is2440) { in finalize_request()
920 host->base + S3C2410_SDIFSTA); in finalize_request()
925 mci_con = readl(host->base + S3C2410_SDICON); in finalize_request()
928 writel(mci_con, host->base + S3C2410_SDICON); in finalize_request()
933 host->complete_what = COMPLETION_NONE; in finalize_request()
934 host->mrq = NULL; in finalize_request()
936 s3cmci_check_sdio_irq(host); in finalize_request()
937 mmc_request_done(host->mmc, mrq); in finalize_request()
940 static void s3cmci_send_command(struct s3cmci_host *host, in s3cmci_send_command() argument
949 enable_imask(host, imsk); in s3cmci_send_command()
952 host->complete_what = COMPLETION_XFERFINISH_RSPFIN; in s3cmci_send_command()
954 host->complete_what = COMPLETION_RSPFIN; in s3cmci_send_command()
956 host->complete_what = COMPLETION_CMDSENT; in s3cmci_send_command()
958 writel(cmd->arg, host->base + S3C2410_SDICMDARG); in s3cmci_send_command()
969 writel(ccon, host->base + S3C2410_SDICMDCON); in s3cmci_send_command()
972 static int s3cmci_setup_data(struct s3cmci_host *host, struct mmc_data *data) in s3cmci_setup_data() argument
979 writel(0, host->base + S3C2410_SDIDCON); in s3cmci_setup_data()
994 while (readl(host->base + S3C2410_SDIDSTA) & in s3cmci_setup_data()
997 dbg(host, dbg_err, in s3cmci_setup_data()
1000 writel(S3C2410_SDIDCON_STOP, host->base + S3C2410_SDIDCON); in s3cmci_setup_data()
1001 s3cmci_reset(host); in s3cmci_setup_data()
1004 dbg_dumpregs(host, "DRF"); in s3cmci_setup_data()
1011 if (s3cmci_host_usedma(host)) in s3cmci_setup_data()
1014 if (host->bus_width == MMC_BUS_WIDTH_4) in s3cmci_setup_data()
1030 if (host->is2440) { in s3cmci_setup_data()
1035 writel(dcon, host->base + S3C2410_SDIDCON); in s3cmci_setup_data()
1039 writel(data->blksz, host->base + S3C2410_SDIBSIZE); in s3cmci_setup_data()
1045 enable_imask(host, imsk); in s3cmci_setup_data()
1049 if (host->is2440) { in s3cmci_setup_data()
1050 writel(0x007FFFFF, host->base + S3C2410_SDITIMER); in s3cmci_setup_data()
1052 writel(0x0000FFFF, host->base + S3C2410_SDITIMER); in s3cmci_setup_data()
1056 writel(0xFF, host->base + S3C2410_SDIPRE); in s3cmci_setup_data()
1064 static int s3cmci_prepare_pio(struct s3cmci_host *host, struct mmc_data *data) in s3cmci_prepare_pio() argument
1070 host->pio_sgptr = 0; in s3cmci_prepare_pio()
1071 host->pio_bytes = 0; in s3cmci_prepare_pio()
1072 host->pio_count = 0; in s3cmci_prepare_pio()
1073 host->pio_active = rw ? XFER_WRITE : XFER_READ; in s3cmci_prepare_pio()
1076 do_pio_write(host); in s3cmci_prepare_pio()
1077 enable_imask(host, S3C2410_SDIIMSK_TXFIFOHALF); in s3cmci_prepare_pio()
1079 enable_imask(host, S3C2410_SDIIMSK_RXFIFOHALF in s3cmci_prepare_pio()
1086 static int s3cmci_prepare_dma(struct s3cmci_host *host, struct mmc_data *data) in s3cmci_prepare_dma() argument
1091 .src_addr = host->mem->start + host->sdidata, in s3cmci_prepare_dma()
1092 .dst_addr = host->mem->start + host->sdidata, in s3cmci_prepare_dma()
1100 writel(host->prescaler, host->base + S3C2410_SDIPRE); in s3cmci_prepare_dma()
1107 dma_map_sg(mmc_dev(host->mmc), data->sg, data->sg_len, in s3cmci_prepare_dma()
1110 dmaengine_slave_config(host->dma, &conf); in s3cmci_prepare_dma()
1111 desc = dmaengine_prep_slave_sg(host->dma, data->sg, data->sg_len, in s3cmci_prepare_dma()
1117 desc->callback_param = host; in s3cmci_prepare_dma()
1119 dma_async_issue_pending(host->dma); in s3cmci_prepare_dma()
1124 dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, in s3cmci_prepare_dma()
1131 struct s3cmci_host *host = mmc_priv(mmc); in s3cmci_send_request() local
1132 struct mmc_request *mrq = host->mrq; in s3cmci_send_request()
1133 struct mmc_command *cmd = host->cmd_is_stop ? mrq->stop : mrq->cmd; in s3cmci_send_request()
1135 host->ccnt++; in s3cmci_send_request()
1136 prepare_dbgmsg(host, cmd, host->cmd_is_stop); in s3cmci_send_request()
1141 writel(0xFFFFFFFF, host->base + S3C2410_SDICMDSTAT); in s3cmci_send_request()
1142 writel(0xFFFFFFFF, host->base + S3C2410_SDIDSTA); in s3cmci_send_request()
1143 writel(0xFFFFFFFF, host->base + S3C2410_SDIFSTA); in s3cmci_send_request()
1146 int res = s3cmci_setup_data(host, cmd->data); in s3cmci_send_request()
1148 host->dcnt++; in s3cmci_send_request()
1151 dbg(host, dbg_err, "setup data error %d\n", res); in s3cmci_send_request()
1159 if (s3cmci_host_usedma(host)) in s3cmci_send_request()
1160 res = s3cmci_prepare_dma(host, cmd->data); in s3cmci_send_request()
1162 res = s3cmci_prepare_pio(host, cmd->data); in s3cmci_send_request()
1165 dbg(host, dbg_err, "data prepare error %d\n", res); in s3cmci_send_request()
1175 s3cmci_send_command(host, cmd); in s3cmci_send_request()
1178 s3cmci_enable_irq(host, true); in s3cmci_send_request()
1183 struct s3cmci_host *host = mmc_priv(mmc); in s3cmci_card_present() local
1184 struct s3c24xx_mci_pdata *pdata = host->pdata; in s3cmci_card_present()
1196 struct s3cmci_host *host = mmc_priv(mmc); in s3cmci_request() local
1198 host->status = "mmc request"; in s3cmci_request()
1199 host->cmd_is_stop = 0; in s3cmci_request()
1200 host->mrq = mrq; in s3cmci_request()
1203 dbg(host, dbg_err, "%s: no medium present\n", __func__); in s3cmci_request()
1204 host->mrq->cmd->error = -ENOMEDIUM; in s3cmci_request()
1210 static void s3cmci_set_clk(struct s3cmci_host *host, struct mmc_ios *ios) in s3cmci_set_clk() argument
1216 host->real_rate = host->clk_rate / (host->clk_div*(mci_psc+1)); in s3cmci_set_clk()
1218 if (host->real_rate <= ios->clock) in s3cmci_set_clk()
1225 host->prescaler = mci_psc; in s3cmci_set_clk()
1226 writel(host->prescaler, host->base + S3C2410_SDIPRE); in s3cmci_set_clk()
1230 host->real_rate = 0; in s3cmci_set_clk()
1235 struct s3cmci_host *host = mmc_priv(mmc); in s3cmci_set_ios() local
1240 mci_con = readl(host->base + S3C2410_SDICON); in s3cmci_set_ios()
1249 if (host->pdata->set_power) in s3cmci_set_ios()
1250 host->pdata->set_power(ios->power_mode, ios->vdd); in s3cmci_set_ios()
1252 if (!host->is2440) in s3cmci_set_ios()
1261 if (host->is2440) in s3cmci_set_ios()
1264 if (host->pdata->set_power) in s3cmci_set_ios()
1265 host->pdata->set_power(ios->power_mode, ios->vdd); in s3cmci_set_ios()
1270 s3cmci_set_clk(host, ios); in s3cmci_set_ios()
1278 writel(mci_con, host->base + S3C2410_SDICON); in s3cmci_set_ios()
1282 dbg(host, dbg_conf, "running at %lukHz (requested: %ukHz).\n", in s3cmci_set_ios()
1283 host->real_rate/1000, ios->clock/1000); in s3cmci_set_ios()
1285 dbg(host, dbg_conf, "powered down.\n"); in s3cmci_set_ios()
1288 host->bus_width = ios->bus_width; in s3cmci_set_ios()
1291 static void s3cmci_reset(struct s3cmci_host *host) in s3cmci_reset() argument
1293 u32 con = readl(host->base + S3C2410_SDICON); in s3cmci_reset()
1296 writel(con, host->base + S3C2410_SDICON); in s3cmci_reset()
1301 struct s3cmci_host *host = mmc_priv(mmc); in s3cmci_get_ro() local
1302 struct s3c24xx_mci_pdata *pdata = host->pdata; in s3cmci_get_ro()
1316 struct s3cmci_host *host = mmc_priv(mmc); in s3cmci_enable_sdio_irq() local
1322 con = readl(host->base + S3C2410_SDICON); in s3cmci_enable_sdio_irq()
1323 host->sdio_irqen = enable; in s3cmci_enable_sdio_irq()
1325 if (enable == host->sdio_irqen) in s3cmci_enable_sdio_irq()
1330 enable_imask(host, S3C2410_SDIIMSK_SDIOIRQ); in s3cmci_enable_sdio_irq()
1332 if (!host->irq_state && !host->irq_disabled) { in s3cmci_enable_sdio_irq()
1333 host->irq_state = true; in s3cmci_enable_sdio_irq()
1334 enable_irq(host->irq); in s3cmci_enable_sdio_irq()
1337 disable_imask(host, S3C2410_SDIIMSK_SDIOIRQ); in s3cmci_enable_sdio_irq()
1340 if (!host->irq_enabled && host->irq_state) { in s3cmci_enable_sdio_irq()
1341 disable_irq_nosync(host->irq); in s3cmci_enable_sdio_irq()
1342 host->irq_state = false; in s3cmci_enable_sdio_irq()
1346 writel(con, host->base + S3C2410_SDICON); in s3cmci_enable_sdio_irq()
1351 s3cmci_check_sdio_irq(host); in s3cmci_enable_sdio_irq()
1374 struct s3cmci_host *host; in s3cmci_cpufreq_transition() local
1379 host = container_of(nb, struct s3cmci_host, freq_transition); in s3cmci_cpufreq_transition()
1380 newclk = clk_get_rate(host->clk); in s3cmci_cpufreq_transition()
1381 mmc = host->mmc; in s3cmci_cpufreq_transition()
1383 if ((val == CPUFREQ_PRECHANGE && newclk > host->clk_rate) || in s3cmci_cpufreq_transition()
1384 (val == CPUFREQ_POSTCHANGE && newclk < host->clk_rate)) { in s3cmci_cpufreq_transition()
1387 host->clk_rate = newclk; in s3cmci_cpufreq_transition()
1391 s3cmci_set_clk(host, &mmc->ios); in s3cmci_cpufreq_transition()
1399 static inline int s3cmci_cpufreq_register(struct s3cmci_host *host) in s3cmci_cpufreq_register() argument
1401 host->freq_transition.notifier_call = s3cmci_cpufreq_transition; in s3cmci_cpufreq_register()
1403 return cpufreq_register_notifier(&host->freq_transition, in s3cmci_cpufreq_register()
1407 static inline void s3cmci_cpufreq_deregister(struct s3cmci_host *host) in s3cmci_cpufreq_deregister() argument
1409 cpufreq_unregister_notifier(&host->freq_transition, in s3cmci_cpufreq_deregister()
1414 static inline int s3cmci_cpufreq_register(struct s3cmci_host *host) in s3cmci_cpufreq_register() argument
1419 static inline void s3cmci_cpufreq_deregister(struct s3cmci_host *host) in s3cmci_cpufreq_deregister() argument
1429 struct s3cmci_host *host = seq->private; in s3cmci_state_show() local
1431 seq_printf(seq, "Register base = 0x%08x\n", (u32)host->base); in s3cmci_state_show()
1432 seq_printf(seq, "Clock rate = %ld\n", host->clk_rate); in s3cmci_state_show()
1433 seq_printf(seq, "Prescale = %d\n", host->prescaler); in s3cmci_state_show()
1434 seq_printf(seq, "is2440 = %d\n", host->is2440); in s3cmci_state_show()
1435 seq_printf(seq, "IRQ = %d\n", host->irq); in s3cmci_state_show()
1436 seq_printf(seq, "IRQ enabled = %d\n", host->irq_enabled); in s3cmci_state_show()
1437 seq_printf(seq, "IRQ disabled = %d\n", host->irq_disabled); in s3cmci_state_show()
1438 seq_printf(seq, "IRQ state = %d\n", host->irq_state); in s3cmci_state_show()
1439 seq_printf(seq, "CD IRQ = %d\n", host->irq_cd); in s3cmci_state_show()
1440 seq_printf(seq, "Do DMA = %d\n", s3cmci_host_usedma(host)); in s3cmci_state_show()
1441 seq_printf(seq, "SDIIMSK at %d\n", host->sdiimsk); in s3cmci_state_show()
1442 seq_printf(seq, "SDIDATA at %d\n", host->sdidata); in s3cmci_state_show()
1486 struct s3cmci_host *host = seq->private; in s3cmci_regs_show() local
1491 readl(host->base + rptr->addr)); in s3cmci_regs_show()
1493 seq_printf(seq, "SDIIMSK\t=0x%08x\n", readl(host->base + host->sdiimsk)); in s3cmci_regs_show()
1511 static void s3cmci_debugfs_attach(struct s3cmci_host *host) in s3cmci_debugfs_attach() argument
1513 struct device *dev = &host->pdev->dev; in s3cmci_debugfs_attach()
1515 host->debug_root = debugfs_create_dir(dev_name(dev), NULL); in s3cmci_debugfs_attach()
1516 if (IS_ERR(host->debug_root)) { in s3cmci_debugfs_attach()
1521 host->debug_state = debugfs_create_file("state", 0444, in s3cmci_debugfs_attach()
1522 host->debug_root, host, in s3cmci_debugfs_attach()
1525 if (IS_ERR(host->debug_state)) in s3cmci_debugfs_attach()
1528 host->debug_regs = debugfs_create_file("regs", 0444, in s3cmci_debugfs_attach()
1529 host->debug_root, host, in s3cmci_debugfs_attach()
1532 if (IS_ERR(host->debug_regs)) in s3cmci_debugfs_attach()
1536 static void s3cmci_debugfs_remove(struct s3cmci_host *host) in s3cmci_debugfs_remove() argument
1538 debugfs_remove(host->debug_regs); in s3cmci_debugfs_remove()
1539 debugfs_remove(host->debug_state); in s3cmci_debugfs_remove()
1540 debugfs_remove(host->debug_root); in s3cmci_debugfs_remove()
1544 static inline void s3cmci_debugfs_attach(struct s3cmci_host *host) { } in s3cmci_debugfs_attach() argument
1545 static inline void s3cmci_debugfs_remove(struct s3cmci_host *host) { } in s3cmci_debugfs_remove() argument
1551 struct s3cmci_host *host; in s3cmci_probe() local
1577 host = mmc_priv(mmc); in s3cmci_probe()
1578 host->mmc = mmc; in s3cmci_probe()
1579 host->pdev = pdev; in s3cmci_probe()
1580 host->is2440 = is2440; in s3cmci_probe()
1582 host->pdata = pdev->dev.platform_data; in s3cmci_probe()
1583 if (!host->pdata) { in s3cmci_probe()
1585 host->pdata = &s3cmci_def_pdata; in s3cmci_probe()
1588 spin_lock_init(&host->complete_lock); in s3cmci_probe()
1589 tasklet_init(&host->pio_tasklet, pio_tasklet, (unsigned long) host); in s3cmci_probe()
1592 host->sdiimsk = S3C2440_SDIIMSK; in s3cmci_probe()
1593 host->sdidata = S3C2440_SDIDATA; in s3cmci_probe()
1594 host->clk_div = 1; in s3cmci_probe()
1596 host->sdiimsk = S3C2410_SDIIMSK; in s3cmci_probe()
1597 host->sdidata = S3C2410_SDIDATA; in s3cmci_probe()
1598 host->clk_div = 2; in s3cmci_probe()
1601 host->complete_what = COMPLETION_NONE; in s3cmci_probe()
1602 host->pio_active = XFER_NONE; in s3cmci_probe()
1604 host->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); in s3cmci_probe()
1605 if (!host->mem) { in s3cmci_probe()
1613 host->mem = request_mem_region(host->mem->start, in s3cmci_probe()
1614 resource_size(host->mem), pdev->name); in s3cmci_probe()
1616 if (!host->mem) { in s3cmci_probe()
1622 host->base = ioremap(host->mem->start, resource_size(host->mem)); in s3cmci_probe()
1623 if (!host->base) { in s3cmci_probe()
1629 host->irq = platform_get_irq(pdev, 0); in s3cmci_probe()
1630 if (host->irq == 0) { in s3cmci_probe()
1636 if (request_irq(host->irq, s3cmci_irq, 0, DRIVER_NAME, host)) { in s3cmci_probe()
1646 disable_irq(host->irq); in s3cmci_probe()
1647 host->irq_state = false; in s3cmci_probe()
1649 if (!host->pdata->no_detect) { in s3cmci_probe()
1650 ret = gpio_request(host->pdata->gpio_detect, "s3cmci detect"); in s3cmci_probe()
1656 host->irq_cd = gpio_to_irq(host->pdata->gpio_detect); in s3cmci_probe()
1658 if (host->irq_cd >= 0) { in s3cmci_probe()
1659 if (request_irq(host->irq_cd, s3cmci_irq_cd, in s3cmci_probe()
1662 DRIVER_NAME, host)) { in s3cmci_probe()
1671 gpio_direction_input(host->pdata->gpio_detect); in s3cmci_probe()
1674 host->irq_cd = -1; in s3cmci_probe()
1676 if (!host->pdata->no_wprotect) { in s3cmci_probe()
1677 ret = gpio_request(host->pdata->gpio_wprotect, "s3cmci wp"); in s3cmci_probe()
1683 gpio_direction_input(host->pdata->gpio_wprotect); in s3cmci_probe()
1688 if (s3cmci_host_usedma(host)) { in s3cmci_probe()
1694 host->dma = dma_request_slave_channel_compat(mask, in s3cmci_probe()
1696 if (!host->dma) { in s3cmci_probe()
1703 host->clk = clk_get(&pdev->dev, "sdi"); in s3cmci_probe()
1704 if (IS_ERR(host->clk)) { in s3cmci_probe()
1706 ret = PTR_ERR(host->clk); in s3cmci_probe()
1707 host->clk = NULL; in s3cmci_probe()
1711 ret = clk_prepare_enable(host->clk); in s3cmci_probe()
1717 host->clk_rate = clk_get_rate(host->clk); in s3cmci_probe()
1726 mmc->f_min = host->clk_rate / (host->clk_div * 256); in s3cmci_probe()
1727 mmc->f_max = host->clk_rate / host->clk_div; in s3cmci_probe()
1729 if (host->pdata->ocr_avail) in s3cmci_probe()
1730 mmc->ocr_avail = host->pdata->ocr_avail; in s3cmci_probe()
1739 dbg(host, dbg_debug, in s3cmci_probe()
1741 (host->is2440?"2440":""), in s3cmci_probe()
1742 host->base, host->irq, host->irq_cd, host->dma); in s3cmci_probe()
1744 ret = s3cmci_cpufreq_register(host); in s3cmci_probe()
1756 s3cmci_debugfs_attach(host); in s3cmci_probe()
1760 s3cmci_host_usedma(host) ? "dma" : "pio", in s3cmci_probe()
1766 s3cmci_cpufreq_deregister(host); in s3cmci_probe()
1769 clk_disable_unprepare(host->clk); in s3cmci_probe()
1772 clk_put(host->clk); in s3cmci_probe()
1775 if (s3cmci_host_usedma(host)) in s3cmci_probe()
1776 dma_release_channel(host->dma); in s3cmci_probe()
1779 if (!host->pdata->no_wprotect) in s3cmci_probe()
1780 gpio_free(host->pdata->gpio_wprotect); in s3cmci_probe()
1783 if (!host->pdata->no_detect) in s3cmci_probe()
1784 gpio_free(host->pdata->gpio_detect); in s3cmci_probe()
1787 if (host->irq_cd >= 0) in s3cmci_probe()
1788 free_irq(host->irq_cd, host); in s3cmci_probe()
1791 free_irq(host->irq, host); in s3cmci_probe()
1794 iounmap(host->base); in s3cmci_probe()
1797 release_mem_region(host->mem->start, resource_size(host->mem)); in s3cmci_probe()
1813 struct s3cmci_host *host = mmc_priv(mmc); in s3cmci_shutdown() local
1815 if (host->irq_cd >= 0) in s3cmci_shutdown()
1816 free_irq(host->irq_cd, host); in s3cmci_shutdown()
1818 s3cmci_debugfs_remove(host); in s3cmci_shutdown()
1819 s3cmci_cpufreq_deregister(host); in s3cmci_shutdown()
1821 clk_disable_unprepare(host->clk); in s3cmci_shutdown()
1827 struct s3cmci_host *host = mmc_priv(mmc); in s3cmci_remove() local
1828 struct s3c24xx_mci_pdata *pd = host->pdata; in s3cmci_remove()
1833 clk_put(host->clk); in s3cmci_remove()
1835 tasklet_disable(&host->pio_tasklet); in s3cmci_remove()
1837 if (s3cmci_host_usedma(host)) in s3cmci_remove()
1838 dma_release_channel(host->dma); in s3cmci_remove()
1840 free_irq(host->irq, host); in s3cmci_remove()
1852 iounmap(host->base); in s3cmci_remove()
1853 release_mem_region(host->mem->start, resource_size(host->mem)); in s3cmci_remove()