1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
13 #include <linux/dma-mapping.h>
19 #include <linux/mmc/slot-gpio.h>
130  * is in-flight. This is used via the pre_req/post_req hooks.
174 	/* DMA support */
179 /* The DMA trigger level is 8 words, that is to say, the DMA read
180  * trigger is when data words in MSC_RXFIFO is >= 8 and the DMA write
189 	if (host->version >= JZ_MMC_JZ4725B)  in jz4740_mmc_write_irq_mask()
190 		return writel(val, host->base + JZ_REG_MMC_IMASK);  in jz4740_mmc_write_irq_mask()
192 		return writew(val, host->base + JZ_REG_MMC_IMASK);  in jz4740_mmc_write_irq_mask()
198 	if (host->version >= JZ_MMC_JZ4780)  in jz4740_mmc_write_irq_reg()
199 		writel(val, host->base + JZ_REG_MMC_IREG);  in jz4740_mmc_write_irq_reg()
201 		writew(val, host->base + JZ_REG_MMC_IREG);  in jz4740_mmc_write_irq_reg()
206 	if (host->version >= JZ_MMC_JZ4780)  in jz4740_mmc_read_irq_reg()
207 		return readl(host->base + JZ_REG_MMC_IREG);  in jz4740_mmc_read_irq_reg()
209 		return readw(host->base + JZ_REG_MMC_IREG);  in jz4740_mmc_read_irq_reg()
212 /*----------------------------------------------------------------------------*/
213 /* DMA infrastructure */
217 	if (!host->use_dma)  in jz4740_mmc_release_dma_channels()
220 	dma_release_channel(host->dma_tx);  in jz4740_mmc_release_dma_channels()
221 	dma_release_channel(host->dma_rx);  in jz4740_mmc_release_dma_channels()
226 	host->dma_tx = dma_request_chan(mmc_dev(host->mmc), "tx");  in jz4740_mmc_acquire_dma_channels()
227 	if (IS_ERR(host->dma_tx)) {  in jz4740_mmc_acquire_dma_channels()
228 		dev_err(mmc_dev(host->mmc), "Failed to get dma_tx channel\n");  in jz4740_mmc_acquire_dma_channels()
229 		return PTR_ERR(host->dma_tx);  in jz4740_mmc_acquire_dma_channels()
232 	host->dma_rx = dma_request_chan(mmc_dev(host->mmc), "rx");  in jz4740_mmc_acquire_dma_channels()
233 	if (IS_ERR(host->dma_rx)) {  in jz4740_mmc_acquire_dma_channels()
234 		dev_err(mmc_dev(host->mmc), "Failed to get dma_rx channel\n");  in jz4740_mmc_acquire_dma_channels()
235 		dma_release_channel(host->dma_tx);  in jz4740_mmc_acquire_dma_channels()
236 		return PTR_ERR(host->dma_rx);  in jz4740_mmc_acquire_dma_channels()
245 	return (data->flags & MMC_DATA_READ) ? host->dma_rx : host->dma_tx;  in jz4740_mmc_get_dma_chan()
254 	dma_unmap_sg(chan->device->dev, data->sg, data->sg_len, dir);  in jz4740_mmc_dma_unmap()
255 	data->host_cookie = COOKIE_UNMAPPED;  in jz4740_mmc_dma_unmap()
258 /* Prepares DMA data for current or next transfer.
259  * A request can be in-flight when this is called.
269 	if (data->host_cookie == COOKIE_PREMAPPED)  in jz4740_mmc_prepare_dma_data()
270 		return data->sg_count;  in jz4740_mmc_prepare_dma_data()
272 	sg_count = dma_map_sg(chan->device->dev,  in jz4740_mmc_prepare_dma_data()
273 			data->sg,  in jz4740_mmc_prepare_dma_data()
274 			data->sg_len,  in jz4740_mmc_prepare_dma_data()
278 		dev_err(mmc_dev(host->mmc),  in jz4740_mmc_prepare_dma_data()
279 			"Failed to map scatterlist for DMA operation\n");  in jz4740_mmc_prepare_dma_data()
280 		return -EINVAL;  in jz4740_mmc_prepare_dma_data()
283 	data->sg_count = sg_count;  in jz4740_mmc_prepare_dma_data()
284 	data->host_cookie = cookie;  in jz4740_mmc_prepare_dma_data()
286 	return data->sg_count;  in jz4740_mmc_prepare_dma_data()
302 	if (data->flags & MMC_DATA_WRITE) {  in jz4740_mmc_start_dma_transfer()
304 		conf.dst_addr = host->mem_res->start + JZ_REG_MMC_TXFIFO;  in jz4740_mmc_start_dma_transfer()
307 		conf.src_addr = host->mem_res->start + JZ_REG_MMC_RXFIFO;  in jz4740_mmc_start_dma_transfer()
315 	desc = dmaengine_prep_slave_sg(chan, data->sg, sg_count,  in jz4740_mmc_start_dma_transfer()
319 		dev_err(mmc_dev(host->mmc),  in jz4740_mmc_start_dma_transfer()
320 			"Failed to allocate DMA %s descriptor",  in jz4740_mmc_start_dma_transfer()
331 	if (data->host_cookie == COOKIE_MAPPED)  in jz4740_mmc_start_dma_transfer()
333 	return -ENOMEM;  in jz4740_mmc_start_dma_transfer()
340 	struct mmc_data *data = mrq->data;  in jz4740_mmc_pre_request()
342 	if (!host->use_dma)  in jz4740_mmc_pre_request()
345 	data->host_cookie = COOKIE_UNMAPPED;  in jz4740_mmc_pre_request()
347 		data->host_cookie = COOKIE_UNMAPPED;  in jz4740_mmc_pre_request()
355 	struct mmc_data *data = mrq->data;  in jz4740_mmc_post_request()
357 	if (data && data->host_cookie != COOKIE_UNMAPPED)  in jz4740_mmc_post_request()
367 /*----------------------------------------------------------------------------*/
374 	spin_lock_irqsave(&host->lock, flags);  in jz4740_mmc_set_irq_enabled()
376 		host->irq_mask &= ~irq;  in jz4740_mmc_set_irq_enabled()
378 		host->irq_mask |= irq;  in jz4740_mmc_set_irq_enabled()
380 	jz4740_mmc_write_irq_mask(host, host->irq_mask);  in jz4740_mmc_set_irq_enabled()
381 	spin_unlock_irqrestore(&host->lock, flags);  in jz4740_mmc_set_irq_enabled()
392 	writew(val, host->base + JZ_REG_MMC_STRPCL);  in jz4740_mmc_clock_enable()
400 	writew(JZ_MMC_STRPCL_CLOCK_STOP, host->base + JZ_REG_MMC_STRPCL);  in jz4740_mmc_clock_disable()
402 		status = readl(host->base + JZ_REG_MMC_STATUS);  in jz4740_mmc_clock_disable()
403 	} while (status & JZ_MMC_STATUS_CLK_EN && --timeout);  in jz4740_mmc_clock_disable()
411 	writew(JZ_MMC_STRPCL_RESET, host->base + JZ_REG_MMC_STRPCL);  in jz4740_mmc_reset()
414 		status = readl(host->base + JZ_REG_MMC_STATUS);  in jz4740_mmc_reset()
415 	} while (status & JZ_MMC_STATUS_IS_RESETTING && --timeout);  in jz4740_mmc_reset()
423 	req = host->req;  in jz4740_mmc_request_done()
424 	data = req->data;  in jz4740_mmc_request_done()
425 	host->req = NULL;  in jz4740_mmc_request_done()
427 	if (data && data->host_cookie == COOKIE_MAPPED)  in jz4740_mmc_request_done()
429 	mmc_request_done(host->mmc, req);  in jz4740_mmc_request_done()
440 	} while (!(status & irq) && --timeout);  in jz4740_mmc_poll_irq()
443 		set_bit(0, &host->waiting);  in jz4740_mmc_poll_irq()
444 		mod_timer(&host->timeout_timer,  in jz4740_mmc_poll_irq()
458 	status = readl(host->base + JZ_REG_MMC_STATUS);  in jz4740_mmc_transfer_check_state()
461 			host->req->cmd->error = -ETIMEDOUT;  in jz4740_mmc_transfer_check_state()
462 			data->error = -ETIMEDOUT;  in jz4740_mmc_transfer_check_state()
464 			host->req->cmd->error = -EIO;  in jz4740_mmc_transfer_check_state()
465 			data->error = -EIO;  in jz4740_mmc_transfer_check_state()
469 			host->req->cmd->error = -ETIMEDOUT;  in jz4740_mmc_transfer_check_state()
470 			data->error = -ETIMEDOUT;  in jz4740_mmc_transfer_check_state()
472 			host->req->cmd->error = -EIO;  in jz4740_mmc_transfer_check_state()
473 			data->error = -EIO;  in jz4740_mmc_transfer_check_state()
481 	struct sg_mapping_iter *miter = &host->miter;  in jz4740_mmc_write_data()
482 	void __iomem *fifo_addr = host->base + JZ_REG_MMC_TXFIFO;  in jz4740_mmc_write_data()
488 		buf = miter->addr;  in jz4740_mmc_write_data()
489 		i = miter->length / 4;  in jz4740_mmc_write_data()
506 			--j;  in jz4740_mmc_write_data()
516 				--i;  in jz4740_mmc_write_data()
519 		data->bytes_xfered += miter->length;  in jz4740_mmc_write_data()
526 	miter->consumed = (void *)buf - miter->addr;  in jz4740_mmc_write_data()
527 	data->bytes_xfered += miter->consumed;  in jz4740_mmc_write_data()
536 	struct sg_mapping_iter *miter = &host->miter;  in jz4740_mmc_read_data()
537 	void __iomem *fifo_addr = host->base + JZ_REG_MMC_RXFIFO;  in jz4740_mmc_read_data()
545 		buf = miter->addr;  in jz4740_mmc_read_data()
546 		i = miter->length;  in jz4740_mmc_read_data()
564 			--j;  in jz4740_mmc_read_data()
574 				i -= 4;  in jz4740_mmc_read_data()
581 		data->bytes_xfered += miter->length;  in jz4740_mmc_read_data()
585 		flush_dcache_page(miter->page);  in jz4740_mmc_read_data()
592 	status = readl(host->base + JZ_REG_MMC_STATUS);  in jz4740_mmc_read_data()
593 	while (!(status & JZ_MMC_STATUS_DATA_FIFO_EMPTY) && --timeout) {  in jz4740_mmc_read_data()
595 		status = readl(host->base + JZ_REG_MMC_STATUS);  in jz4740_mmc_read_data()
601 	miter->consumed = (void *)buf - miter->addr;  in jz4740_mmc_read_data()
602 	data->bytes_xfered += miter->consumed;  in jz4740_mmc_read_data()
612 	if (!test_and_clear_bit(0, &host->waiting))  in jz4740_mmc_timeout()
617 	host->req->cmd->error = -ETIMEDOUT;  in jz4740_mmc_timeout()
626 	void __iomem *fifo_addr = host->base + JZ_REG_MMC_RESP_FIFO;  in jz4740_mmc_read_response()
628 	if (cmd->flags & MMC_RSP_136) {  in jz4740_mmc_read_response()
631 			cmd->resp[i] = tmp << 24;  in jz4740_mmc_read_response()
633 			cmd->resp[i] |= tmp << 8;  in jz4740_mmc_read_response()
635 			cmd->resp[i] |= tmp >> 8;  in jz4740_mmc_read_response()
638 		cmd->resp[0] = readw(fifo_addr) << 24;  in jz4740_mmc_read_response()
639 		cmd->resp[0] |= readw(fifo_addr) << 8;  in jz4740_mmc_read_response()
640 		cmd->resp[0] |= readw(fifo_addr) & 0xff;  in jz4740_mmc_read_response()
647 	uint32_t cmdat = host->cmdat;  in jz4740_mmc_send_command()
649 	host->cmdat &= ~JZ_MMC_CMDAT_INIT;  in jz4740_mmc_send_command()
652 	host->cmd = cmd;  in jz4740_mmc_send_command()
654 	if (cmd->flags & MMC_RSP_BUSY)  in jz4740_mmc_send_command()
672 	if (cmd->data) {  in jz4740_mmc_send_command()
674 		if (cmd->data->flags & MMC_DATA_WRITE)  in jz4740_mmc_send_command()
676 		if (host->use_dma) {  in jz4740_mmc_send_command()
678 			 * The 4780's MMC controller has integrated DMA ability  in jz4740_mmc_send_command()
679 			 * in addition to being able to use the external DMA  in jz4740_mmc_send_command()
680 			 * controller. It moves DMA control bits to a separate  in jz4740_mmc_send_command()
684 			 * single DMA enable bit in CMDAT.  in jz4740_mmc_send_command()
686 			if (host->version >= JZ_MMC_JZ4780) {  in jz4740_mmc_send_command()
688 				       host->base + JZ_REG_MMC_DMAC);  in jz4740_mmc_send_command()
692 		} else if (host->version >= JZ_MMC_JZ4780) {  in jz4740_mmc_send_command()
693 			writel(0, host->base + JZ_REG_MMC_DMAC);  in jz4740_mmc_send_command()
696 		writew(cmd->data->blksz, host->base + JZ_REG_MMC_BLKLEN);  in jz4740_mmc_send_command()
697 		writew(cmd->data->blocks, host->base + JZ_REG_MMC_NOB);  in jz4740_mmc_send_command()
700 	writeb(cmd->opcode, host->base + JZ_REG_MMC_CMD);  in jz4740_mmc_send_command()
701 	writel(cmd->arg, host->base + JZ_REG_MMC_ARG);  in jz4740_mmc_send_command()
702 	writel(cmdat, host->base + JZ_REG_MMC_CMDAT);  in jz4740_mmc_send_command()
709 	struct mmc_command *cmd = host->req->cmd;  in jz_mmc_prepare_data_transfer()
710 	struct mmc_data *data = cmd->data;  in jz_mmc_prepare_data_transfer()
713 	if (data->flags & MMC_DATA_READ)  in jz_mmc_prepare_data_transfer()
718 	sg_miter_start(&host->miter, data->sg, data->sg_len, direction);  in jz_mmc_prepare_data_transfer()
725 	struct mmc_command *cmd = host->req->cmd;  in jz_mmc_irq_worker()
726 	struct mmc_request *req = host->req;  in jz_mmc_irq_worker()
727 	struct mmc_data *data = cmd->data;  in jz_mmc_irq_worker()
730 	if (cmd->error)  in jz_mmc_irq_worker()
731 		host->state = JZ4740_MMC_STATE_DONE;  in jz_mmc_irq_worker()
733 	switch (host->state) {  in jz_mmc_irq_worker()
735 		if (cmd->flags & MMC_RSP_PRESENT)  in jz_mmc_irq_worker()
745 		if (host->use_dma) {  in jz_mmc_irq_worker()
746 			/* Use DMA if enabled.  in jz_mmc_irq_worker()
753 			data->bytes_xfered = data->blocks * data->blksz;  in jz_mmc_irq_worker()
754 		} else if (data->flags & MMC_DATA_READ)  in jz_mmc_irq_worker()
755 			/* Use PIO if DMA is not enabled.  in jz_mmc_irq_worker()
765 			host->state = JZ4740_MMC_STATE_TRANSFER_DATA;  in jz_mmc_irq_worker()
773 			host->state = JZ4740_MMC_STATE_SEND_STOP;  in jz_mmc_irq_worker()
780 		if (!req->stop)  in jz_mmc_irq_worker()
783 		jz4740_mmc_send_command(host, req->stop);  in jz_mmc_irq_worker()
785 		if (mmc_resp_type(req->stop) & MMC_RSP_BUSY) {  in jz_mmc_irq_worker()
789 				host->state = JZ4740_MMC_STATE_DONE;  in jz_mmc_irq_worker()
806 	struct mmc_command *cmd = host->cmd;  in jz_mmc_irq()
809 	status = readl(host->base + JZ_REG_MMC_STATUS);  in jz_mmc_irq()
813 	irq_reg &= ~host->irq_mask;  in jz_mmc_irq()
823 		mmc_signal_sdio_irq(host->mmc);  in jz_mmc_irq()
827 	if (host->req && cmd && irq_reg) {  in jz_mmc_irq()
828 		if (test_and_clear_bit(0, &host->waiting)) {  in jz_mmc_irq()
829 			del_timer(&host->timeout_timer);  in jz_mmc_irq()
832 				cmd->error = -ETIMEDOUT;  in jz_mmc_irq()
834 				cmd->error = -EIO;  in jz_mmc_irq()
837 				if (cmd->data)  in jz_mmc_irq()
838 					cmd->data->error = -EIO;  in jz_mmc_irq()
839 				cmd->error = -EIO;  in jz_mmc_irq()
858 	clk_set_rate(host->clk, host->mmc->f_max);  in jz4740_mmc_set_clock_rate()
860 	real_rate = clk_get_rate(host->clk);  in jz4740_mmc_set_clock_rate()
867 	writew(div, host->base + JZ_REG_MMC_CLKRT);  in jz4740_mmc_set_clock_rate()
870 		if (host->version >= JZ_MMC_X1000) {  in jz4740_mmc_set_clock_rate()
874 				   host->base + JZ_REG_MMC_LPM);  in jz4740_mmc_set_clock_rate()
875 		} else if (host->version >= JZ_MMC_JZ4760) {  in jz4740_mmc_set_clock_rate()
878 				   host->base + JZ_REG_MMC_LPM);  in jz4740_mmc_set_clock_rate()
879 		} else if (host->version >= JZ_MMC_JZ4725B)  in jz4740_mmc_set_clock_rate()
881 				   host->base + JZ_REG_MMC_LPM);  in jz4740_mmc_set_clock_rate()
891 	host->req = req;  in jz4740_mmc_request()
896 	host->state = JZ4740_MMC_STATE_READ_RESPONSE;  in jz4740_mmc_request()
897 	set_bit(0, &host->waiting);  in jz4740_mmc_request()
898 	mod_timer(&host->timeout_timer,  in jz4740_mmc_request()
900 	jz4740_mmc_send_command(host, req->cmd);  in jz4740_mmc_request()
906 	if (ios->clock)  in jz4740_mmc_set_ios()
907 		jz4740_mmc_set_clock_rate(host, ios->clock);  in jz4740_mmc_set_ios()
909 	switch (ios->power_mode) {  in jz4740_mmc_set_ios()
912 		if (!IS_ERR(mmc->supply.vmmc))  in jz4740_mmc_set_ios()
913 			mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);  in jz4740_mmc_set_ios()
914 		host->cmdat |= JZ_MMC_CMDAT_INIT;  in jz4740_mmc_set_ios()
915 		clk_prepare_enable(host->clk);  in jz4740_mmc_set_ios()
920 		if (!IS_ERR(mmc->supply.vmmc))  in jz4740_mmc_set_ios()
921 			mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);  in jz4740_mmc_set_ios()
922 		clk_disable_unprepare(host->clk);  in jz4740_mmc_set_ios()
926 	switch (ios->bus_width) {  in jz4740_mmc_set_ios()
928 		host->cmdat &= ~JZ_MMC_CMDAT_BUS_WIDTH_MASK;  in jz4740_mmc_set_ios()
931 		host->cmdat &= ~JZ_MMC_CMDAT_BUS_WIDTH_MASK;  in jz4740_mmc_set_ios()
932 		host->cmdat |= JZ_MMC_CMDAT_BUS_WIDTH_4BIT;  in jz4740_mmc_set_ios()
935 		host->cmdat &= ~JZ_MMC_CMDAT_BUS_WIDTH_MASK;  in jz4740_mmc_set_ios()
936 		host->cmdat |= JZ_MMC_CMDAT_BUS_WIDTH_8BIT;  in jz4740_mmc_set_ios()
960 	{ .compatible = "ingenic,jz4740-mmc", .data = (void *) JZ_MMC_JZ4740 },
961 	{ .compatible = "ingenic,jz4725b-mmc", .data = (void *)JZ_MMC_JZ4725B },
962 	{ .compatible = "ingenic,jz4760-mmc", .data = (void *) JZ_MMC_JZ4760 },
963 	{ .compatible = "ingenic,jz4780-mmc", .data = (void *) JZ_MMC_JZ4780 },
964 	{ .compatible = "ingenic,x1000-mmc", .data = (void *) JZ_MMC_X1000 },
976 	mmc = mmc_alloc_host(sizeof(struct jz4740_mmc_host), &pdev->dev);  in jz4740_mmc_probe()
978 		dev_err(&pdev->dev, "Failed to alloc mmc host structure\n");  in jz4740_mmc_probe()
979 		return -ENOMEM;  in jz4740_mmc_probe()
984 	match = of_match_device(jz4740_mmc_of_match, &pdev->dev);  in jz4740_mmc_probe()
986 		host->version = (enum jz4740_mmc_version)match->data;  in jz4740_mmc_probe()
989 		host->version = JZ_MMC_JZ4740;  in jz4740_mmc_probe()
994 		dev_err_probe(&pdev->dev, ret, "could not parse device properties\n");  in jz4740_mmc_probe()
1000 	host->irq = platform_get_irq(pdev, 0);  in jz4740_mmc_probe()
1001 	if (host->irq < 0) {  in jz4740_mmc_probe()
1002 		ret = host->irq;  in jz4740_mmc_probe()
1006 	host->clk = devm_clk_get(&pdev->dev, "mmc");  in jz4740_mmc_probe()
1007 	if (IS_ERR(host->clk)) {  in jz4740_mmc_probe()
1008 		ret = PTR_ERR(host->clk);  in jz4740_mmc_probe()
1009 		dev_err(&pdev->dev, "Failed to get mmc clock\n");  in jz4740_mmc_probe()
1013 	host->mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);  in jz4740_mmc_probe()
1014 	host->base = devm_ioremap_resource(&pdev->dev, host->mem_res);  in jz4740_mmc_probe()
1015 	if (IS_ERR(host->base)) {  in jz4740_mmc_probe()
1016 		ret = PTR_ERR(host->base);  in jz4740_mmc_probe()
1017 		dev_err(&pdev->dev, "Failed to ioremap base memory\n");  in jz4740_mmc_probe()
1021 	mmc->ops = &jz4740_mmc_ops;  in jz4740_mmc_probe()
1022 	if (!mmc->f_max)  in jz4740_mmc_probe()
1023 		mmc->f_max = JZ_MMC_CLK_RATE;  in jz4740_mmc_probe()
1024 	mmc->f_min = mmc->f_max / 128;  in jz4740_mmc_probe()
1025 	mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;  in jz4740_mmc_probe()
1029 	 * future improvement should instead respect the cmd->busy_timeout.  in jz4740_mmc_probe()
1031 	mmc->max_busy_timeout = JZ_MMC_REQ_TIMEOUT_MS;  in jz4740_mmc_probe()
1033 	mmc->max_blk_size = (1 << 10) - 1;  in jz4740_mmc_probe()
1034 	mmc->max_blk_count = (1 << 15) - 1;  in jz4740_mmc_probe()
1035 	mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;  in jz4740_mmc_probe()
1037 	mmc->max_segs = 128;  in jz4740_mmc_probe()
1038 	mmc->max_seg_size = mmc->max_req_size;  in jz4740_mmc_probe()
1040 	host->mmc = mmc;  in jz4740_mmc_probe()
1041 	host->pdev = pdev;  in jz4740_mmc_probe()
1042 	spin_lock_init(&host->lock);  in jz4740_mmc_probe()
1043 	host->irq_mask = ~0;  in jz4740_mmc_probe()
1047 	ret = request_threaded_irq(host->irq, jz_mmc_irq, jz_mmc_irq_worker, 0,  in jz4740_mmc_probe()
1048 			dev_name(&pdev->dev), host);  in jz4740_mmc_probe()
1050 		dev_err(&pdev->dev, "Failed to request irq: %d\n", ret);  in jz4740_mmc_probe()
1055 	timer_setup(&host->timeout_timer, jz4740_mmc_timeout, 0);  in jz4740_mmc_probe()
1058 	if (ret == -EPROBE_DEFER)  in jz4740_mmc_probe()
1060 	host->use_dma = !ret;  in jz4740_mmc_probe()
1066 		dev_err(&pdev->dev, "Failed to add mmc host: %d\n", ret);  in jz4740_mmc_probe()
1069 	dev_info(&pdev->dev, "Ingenic SD/MMC card driver registered\n");  in jz4740_mmc_probe()
1071 	dev_info(&pdev->dev, "Using %s, %d-bit mode\n",  in jz4740_mmc_probe()
1072 		 host->use_dma ? "DMA" : "PIO",  in jz4740_mmc_probe()
1073 		 (mmc->caps & MMC_CAP_8_BIT_DATA) ? 8 :  in jz4740_mmc_probe()
1074 		 ((mmc->caps & MMC_CAP_4_BIT_DATA) ? 4 : 1));  in jz4740_mmc_probe()
1079 	if (host->use_dma)  in jz4740_mmc_probe()
1082 	free_irq(host->irq, host);  in jz4740_mmc_probe()
1093 	del_timer_sync(&host->timeout_timer);  in jz4740_mmc_remove()
1097 	mmc_remove_host(host->mmc);  in jz4740_mmc_remove()
1099 	free_irq(host->irq, host);  in jz4740_mmc_remove()
1101 	if (host->use_dma)  in jz4740_mmc_remove()
1104 	mmc_free_host(host->mmc);  in jz4740_mmc_remove()
1126 		.name = "jz4740-mmc",
1137 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");