Lines Matching refs:host
83 static inline void pxamci_init_ocr(struct pxamci_host *host) in pxamci_init_ocr() argument
86 host->vcc = regulator_get_optional(mmc_dev(host->mmc), "vmmc"); in pxamci_init_ocr()
88 if (IS_ERR(host->vcc)) in pxamci_init_ocr()
89 host->vcc = NULL; in pxamci_init_ocr()
91 host->mmc->ocr_avail = mmc_regulator_get_ocrmask(host->vcc); in pxamci_init_ocr()
92 if (host->pdata && host->pdata->ocr_mask) in pxamci_init_ocr()
93 dev_warn(mmc_dev(host->mmc), in pxamci_init_ocr()
97 if (host->vcc == NULL) { in pxamci_init_ocr()
99 host->mmc->ocr_avail = host->pdata ? in pxamci_init_ocr()
100 host->pdata->ocr_mask : in pxamci_init_ocr()
105 static inline int pxamci_set_power(struct pxamci_host *host, in pxamci_set_power() argument
111 if (host->vcc) { in pxamci_set_power()
115 ret = mmc_regulator_set_ocr(host->mmc, host->vcc, vdd); in pxamci_set_power()
119 ret = mmc_regulator_set_ocr(host->mmc, host->vcc, 0); in pxamci_set_power()
124 if (!host->vcc && host->pdata && in pxamci_set_power()
125 gpio_is_valid(host->pdata->gpio_power)) { in pxamci_set_power()
126 on = ((1 << vdd) & host->pdata->ocr_mask); in pxamci_set_power()
127 gpio_set_value(host->pdata->gpio_power, in pxamci_set_power()
128 !!on ^ host->pdata->gpio_power_invert); in pxamci_set_power()
130 if (!host->vcc && host->pdata && host->pdata->setpower) in pxamci_set_power()
131 return host->pdata->setpower(mmc_dev(host->mmc), vdd); in pxamci_set_power()
136 static void pxamci_stop_clock(struct pxamci_host *host) in pxamci_stop_clock() argument
138 if (readl(host->base + MMC_STAT) & STAT_CLK_EN) { in pxamci_stop_clock()
142 writel(STOP_CLOCK, host->base + MMC_STRPCL); in pxamci_stop_clock()
145 v = readl(host->base + MMC_STAT); in pxamci_stop_clock()
152 dev_err(mmc_dev(host->mmc), "unable to stop clock\n"); in pxamci_stop_clock()
156 static void pxamci_enable_irq(struct pxamci_host *host, unsigned int mask) in pxamci_enable_irq() argument
160 spin_lock_irqsave(&host->lock, flags); in pxamci_enable_irq()
161 host->imask &= ~mask; in pxamci_enable_irq()
162 writel(host->imask, host->base + MMC_I_MASK); in pxamci_enable_irq()
163 spin_unlock_irqrestore(&host->lock, flags); in pxamci_enable_irq()
166 static void pxamci_disable_irq(struct pxamci_host *host, unsigned int mask) in pxamci_disable_irq() argument
170 spin_lock_irqsave(&host->lock, flags); in pxamci_disable_irq()
171 host->imask |= mask; in pxamci_disable_irq()
172 writel(host->imask, host->base + MMC_I_MASK); in pxamci_disable_irq()
173 spin_unlock_irqrestore(&host->lock, flags); in pxamci_disable_irq()
176 static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data) in pxamci_setup_data() argument
185 host->data = data; in pxamci_setup_data()
190 writel(nob, host->base + MMC_NOB); in pxamci_setup_data()
191 writel(data->blksz, host->base + MMC_BLKLEN); in pxamci_setup_data()
193 clks = (unsigned long long)data->timeout_ns * host->clkrate; in pxamci_setup_data()
195 timeout = (unsigned int)clks + (data->timeout_clks << host->clkrt); in pxamci_setup_data()
196 writel((timeout + 255) / 256, host->base + MMC_RDTO); in pxamci_setup_data()
199 host->dma_dir = DMA_FROM_DEVICE; in pxamci_setup_data()
201 DRCMR(host->dma_drcmrtx) = 0; in pxamci_setup_data()
202 DRCMR(host->dma_drcmrrx) = host->dma | DRCMR_MAPVLD; in pxamci_setup_data()
204 host->dma_dir = DMA_TO_DEVICE; in pxamci_setup_data()
206 DRCMR(host->dma_drcmrrx) = 0; in pxamci_setup_data()
207 DRCMR(host->dma_drcmrtx) = host->dma | DRCMR_MAPVLD; in pxamci_setup_data()
212 host->dma_len = dma_map_sg(mmc_dev(host->mmc), data->sg, data->sg_len, in pxamci_setup_data()
213 host->dma_dir); in pxamci_setup_data()
215 for (i = 0; i < host->dma_len; i++) { in pxamci_setup_data()
217 host->sg_cpu[i].dcmd = dcmd | length; in pxamci_setup_data()
219 host->sg_cpu[i].dcmd |= DCMD_ENDIRQEN; in pxamci_setup_data()
224 host->sg_cpu[i].dsadr = host->res->start + MMC_RXFIFO; in pxamci_setup_data()
225 host->sg_cpu[i].dtadr = sg_dma_address(&data->sg[i]); in pxamci_setup_data()
227 host->sg_cpu[i].dsadr = sg_dma_address(&data->sg[i]); in pxamci_setup_data()
228 host->sg_cpu[i].dtadr = host->res->start + MMC_TXFIFO; in pxamci_setup_data()
230 host->sg_cpu[i].ddadr = host->sg_dma + (i + 1) * in pxamci_setup_data()
233 host->sg_cpu[host->dma_len - 1].ddadr = DDADR_STOP; in pxamci_setup_data()
242 DALGN |= (1 << host->dma); in pxamci_setup_data()
244 DALGN &= ~(1 << host->dma); in pxamci_setup_data()
245 DDADR(host->dma) = host->sg_dma; in pxamci_setup_data()
254 DCSR(host->dma) = DCSR_RUN; in pxamci_setup_data()
257 static void pxamci_start_cmd(struct pxamci_host *host, struct mmc_command *cmd, unsigned int cmdat) in pxamci_start_cmd() argument
259 WARN_ON(host->cmd != NULL); in pxamci_start_cmd()
260 host->cmd = cmd; in pxamci_start_cmd()
280 writel(cmd->opcode, host->base + MMC_CMD); in pxamci_start_cmd()
281 writel(cmd->arg >> 16, host->base + MMC_ARGH); in pxamci_start_cmd()
282 writel(cmd->arg & 0xffff, host->base + MMC_ARGL); in pxamci_start_cmd()
283 writel(cmdat, host->base + MMC_CMDAT); in pxamci_start_cmd()
284 writel(host->clkrt, host->base + MMC_CLKRT); in pxamci_start_cmd()
286 writel(START_CLOCK, host->base + MMC_STRPCL); in pxamci_start_cmd()
288 pxamci_enable_irq(host, END_CMD_RES); in pxamci_start_cmd()
291 static void pxamci_finish_request(struct pxamci_host *host, struct mmc_request *mrq) in pxamci_finish_request() argument
293 host->mrq = NULL; in pxamci_finish_request()
294 host->cmd = NULL; in pxamci_finish_request()
295 host->data = NULL; in pxamci_finish_request()
296 mmc_request_done(host->mmc, mrq); in pxamci_finish_request()
299 static int pxamci_cmd_done(struct pxamci_host *host, unsigned int stat) in pxamci_cmd_done() argument
301 struct mmc_command *cmd = host->cmd; in pxamci_cmd_done()
308 host->cmd = NULL; in pxamci_cmd_done()
314 v = readl(host->base + MMC_RES) & 0xffff; in pxamci_cmd_done()
316 u32 w1 = readl(host->base + MMC_RES) & 0xffff; in pxamci_cmd_done()
317 u32 w2 = readl(host->base + MMC_RES) & 0xffff; in pxamci_cmd_done()
338 pxamci_disable_irq(host, END_CMD_RES); in pxamci_cmd_done()
339 if (host->data && !cmd->error) { in pxamci_cmd_done()
340 pxamci_enable_irq(host, DATA_TRAN_DONE); in pxamci_cmd_done()
345 if (cpu_is_pxa27x() && host->data->flags & MMC_DATA_WRITE) in pxamci_cmd_done()
346 DCSR(host->dma) = DCSR_RUN; in pxamci_cmd_done()
348 pxamci_finish_request(host, host->mrq); in pxamci_cmd_done()
354 static int pxamci_data_done(struct pxamci_host *host, unsigned int stat) in pxamci_data_done() argument
356 struct mmc_data *data = host->data; in pxamci_data_done()
361 DCSR(host->dma) = 0; in pxamci_data_done()
362 dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, in pxamci_data_done()
363 host->dma_dir); in pxamci_data_done()
381 pxamci_disable_irq(host, DATA_TRAN_DONE); in pxamci_data_done()
383 host->data = NULL; in pxamci_data_done()
384 if (host->mrq->stop) { in pxamci_data_done()
385 pxamci_stop_clock(host); in pxamci_data_done()
386 pxamci_start_cmd(host, host->mrq->stop, host->cmdat); in pxamci_data_done()
388 pxamci_finish_request(host, host->mrq); in pxamci_data_done()
396 struct pxamci_host *host = devid; in pxamci_irq() local
400 ireg = readl(host->base + MMC_I_REG) & ~readl(host->base + MMC_I_MASK); in pxamci_irq()
403 unsigned stat = readl(host->base + MMC_STAT); in pxamci_irq()
408 handled |= pxamci_cmd_done(host, stat); in pxamci_irq()
410 handled |= pxamci_data_done(host, stat); in pxamci_irq()
412 mmc_signal_sdio_irq(host->mmc); in pxamci_irq()
422 struct pxamci_host *host = mmc_priv(mmc); in pxamci_request() local
425 WARN_ON(host->mrq != NULL); in pxamci_request()
427 host->mrq = mrq; in pxamci_request()
429 pxamci_stop_clock(host); in pxamci_request()
431 cmdat = host->cmdat; in pxamci_request()
432 host->cmdat &= ~CMDAT_INIT; in pxamci_request()
435 pxamci_setup_data(host, mrq->data); in pxamci_request()
446 pxamci_start_cmd(host, mrq->cmd, cmdat); in pxamci_request()
451 struct pxamci_host *host = mmc_priv(mmc); in pxamci_get_ro() local
453 if (host->pdata && gpio_is_valid(host->pdata->gpio_card_ro)) { in pxamci_get_ro()
454 if (host->pdata->gpio_card_ro_invert) in pxamci_get_ro()
455 return !gpio_get_value(host->pdata->gpio_card_ro); in pxamci_get_ro()
457 return gpio_get_value(host->pdata->gpio_card_ro); in pxamci_get_ro()
459 if (host->pdata && host->pdata->get_ro) in pxamci_get_ro()
460 return !!host->pdata->get_ro(mmc_dev(mmc)); in pxamci_get_ro()
470 struct pxamci_host *host = mmc_priv(mmc); in pxamci_set_ios() local
473 unsigned long rate = host->clkrate; in pxamci_set_ios()
476 if (host->clkrt == CLKRT_OFF) in pxamci_set_ios()
477 clk_prepare_enable(host->clk); in pxamci_set_ios()
481 host->clkrt = 7; in pxamci_set_ios()
494 host->clkrt = fls(clk) - 1; in pxamci_set_ios()
501 pxamci_stop_clock(host); in pxamci_set_ios()
502 if (host->clkrt != CLKRT_OFF) { in pxamci_set_ios()
503 host->clkrt = CLKRT_OFF; in pxamci_set_ios()
504 clk_disable_unprepare(host->clk); in pxamci_set_ios()
508 if (host->power_mode != ios->power_mode) { in pxamci_set_ios()
511 host->power_mode = ios->power_mode; in pxamci_set_ios()
513 ret = pxamci_set_power(host, ios->power_mode, ios->vdd); in pxamci_set_ios()
526 host->cmdat |= CMDAT_INIT; in pxamci_set_ios()
530 host->cmdat |= CMDAT_SD_4DAT; in pxamci_set_ios()
532 host->cmdat &= ~CMDAT_SD_4DAT; in pxamci_set_ios()
535 host->clkrt, host->cmdat); in pxamci_set_ios()
538 static void pxamci_enable_sdio_irq(struct mmc_host *host, int enable) in pxamci_enable_sdio_irq() argument
540 struct pxamci_host *pxa_host = mmc_priv(host); in pxamci_enable_sdio_irq()
557 struct pxamci_host *host = devid; in pxamci_dma_irq() local
562 writel(BUF_PART_FULL, host->base + MMC_PRTBUF); in pxamci_dma_irq()
565 mmc_hostname(host->mmc), dma, dcsr); in pxamci_dma_irq()
566 host->data->error = -EIO; in pxamci_dma_irq()
567 pxamci_data_done(host, 0); in pxamci_dma_irq()
573 struct pxamci_host *host = mmc_priv(devid); in pxamci_detect_irq() local
575 mmc_detect_change(devid, msecs_to_jiffies(host->pdata->detect_delay_ms)); in pxamci_detect_irq()
626 struct pxamci_host *host = NULL; in pxamci_probe() local
672 host = mmc_priv(mmc); in pxamci_probe()
673 host->mmc = mmc; in pxamci_probe()
674 host->dma = -1; in pxamci_probe()
675 host->pdata = pdev->dev.platform_data; in pxamci_probe()
676 host->clkrt = CLKRT_OFF; in pxamci_probe()
678 host->clk = clk_get(&pdev->dev, NULL); in pxamci_probe()
679 if (IS_ERR(host->clk)) { in pxamci_probe()
680 ret = PTR_ERR(host->clk); in pxamci_probe()
681 host->clk = NULL; in pxamci_probe()
685 host->clkrate = clk_get_rate(host->clk); in pxamci_probe()
690 mmc->f_min = (host->clkrate + 63) / 64; in pxamci_probe()
691 mmc->f_max = (mmc_has_26MHz()) ? 26000000 : host->clkrate; in pxamci_probe()
693 pxamci_init_ocr(host); in pxamci_probe()
696 host->cmdat = 0; in pxamci_probe()
699 host->cmdat |= CMDAT_SDIO_INT_EN; in pxamci_probe()
705 host->sg_cpu = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &host->sg_dma, GFP_KERNEL); in pxamci_probe()
706 if (!host->sg_cpu) { in pxamci_probe()
711 spin_lock_init(&host->lock); in pxamci_probe()
712 host->res = r; in pxamci_probe()
713 host->irq = irq; in pxamci_probe()
714 host->imask = MMC_I_MASK_ALL; in pxamci_probe()
716 host->base = ioremap(r->start, SZ_4K); in pxamci_probe()
717 if (!host->base) { in pxamci_probe()
726 pxamci_stop_clock(host); in pxamci_probe()
727 writel(0, host->base + MMC_SPI); in pxamci_probe()
728 writel(64, host->base + MMC_RESTO); in pxamci_probe()
729 writel(host->imask, host->base + MMC_I_MASK); in pxamci_probe()
731 host->dma = pxa_request_dma(DRIVER_NAME, DMA_PRIO_LOW, in pxamci_probe()
732 pxamci_dma_irq, host); in pxamci_probe()
733 if (host->dma < 0) { in pxamci_probe()
738 ret = request_irq(host->irq, pxamci_irq, 0, DRIVER_NAME, host); in pxamci_probe()
749 host->dma_drcmrrx = dmarx->start; in pxamci_probe()
756 host->dma_drcmrtx = dmatx->start; in pxamci_probe()
758 if (host->pdata) { in pxamci_probe()
759 gpio_cd = host->pdata->gpio_card_detect; in pxamci_probe()
760 gpio_ro = host->pdata->gpio_card_ro; in pxamci_probe()
761 gpio_power = host->pdata->gpio_power; in pxamci_probe()
770 host->pdata->gpio_power_invert); in pxamci_probe()
797 if (host->pdata && host->pdata->init) in pxamci_probe()
798 host->pdata->init(&pdev->dev, pxamci_detect_irq, mmc); in pxamci_probe()
800 if (gpio_is_valid(gpio_power) && host->pdata->setpower) in pxamci_probe()
802 if (gpio_is_valid(gpio_ro) && host->pdata->get_ro) in pxamci_probe()
816 if (host) { in pxamci_probe()
817 if (host->dma >= 0) in pxamci_probe()
818 pxa_free_dma(host->dma); in pxamci_probe()
819 if (host->base) in pxamci_probe()
820 iounmap(host->base); in pxamci_probe()
821 if (host->sg_cpu) in pxamci_probe()
822 dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma); in pxamci_probe()
823 if (host->clk) in pxamci_probe()
824 clk_put(host->clk); in pxamci_probe()
838 struct pxamci_host *host = mmc_priv(mmc); in pxamci_remove() local
842 if (host->pdata) { in pxamci_remove()
843 gpio_cd = host->pdata->gpio_card_detect; in pxamci_remove()
844 gpio_ro = host->pdata->gpio_card_ro; in pxamci_remove()
845 gpio_power = host->pdata->gpio_power; in pxamci_remove()
855 if (host->vcc) in pxamci_remove()
856 regulator_put(host->vcc); in pxamci_remove()
858 if (host->pdata && host->pdata->exit) in pxamci_remove()
859 host->pdata->exit(&pdev->dev, mmc); in pxamci_remove()
861 pxamci_stop_clock(host); in pxamci_remove()
864 host->base + MMC_I_MASK); in pxamci_remove()
866 DRCMR(host->dma_drcmrrx) = 0; in pxamci_remove()
867 DRCMR(host->dma_drcmrtx) = 0; in pxamci_remove()
869 free_irq(host->irq, host); in pxamci_remove()
870 pxa_free_dma(host->dma); in pxamci_remove()
871 iounmap(host->base); in pxamci_remove()
872 dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma); in pxamci_remove()
874 clk_put(host->clk); in pxamci_remove()
876 release_resource(host->res); in pxamci_remove()