3  *  linux/drivers/mmc/host/mxcmmc.c - Freescale i.MX MMCI driver
25 #include <linux/mmc/host.h>
26 #include <linux/mmc/card.h>
35 #include <linux/mmc/slot-gpio.h>
39 #include <linux/platform_data/mmc-mxcmmc.h>
43 #define DRIVER_NAME "mxc-mmc"
120 	struct mmc_host		*mmc;  member
161 		.compatible = "fsl,imx21-mmc",
164 		.compatible = "fsl,imx31-mmc",
221 	if (!IS_ERR(host->mmc->supply.vmmc)) {  in mxcmci_set_power()
223 			mmc_regulator_set_ocr(host->mmc,  in mxcmci_set_power()
224 					      host->mmc->supply.vmmc, vdd);  in mxcmci_set_power()
226 			mmc_regulator_set_ocr(host->mmc,  in mxcmci_set_power()
227 					      host->mmc->supply.vmmc, 0);  in mxcmci_set_power()
231 		host->pdata->setpower(mmc_dev(host->mmc), vdd);  in mxcmci_set_power()
243 	dev_dbg(mmc_dev(host->mmc), "mxcmci_softreset\n");  in mxcmci_softreset()
359 	dev_dbg(mmc_dev(host->mmc), "%s: 0x%08x\n", __func__, stat);  in mxcmci_dma_callback()
387 		dev_err(mmc_dev(host->mmc), "unhandled response type 0x%x\n",  in mxcmci_start_cmd()
433 	mmc_request_done(host->mmc, req);  in mxcmci_finish_request()
448 		dev_dbg(mmc_dev(host->mmc), "request failed. status: 0x%08x\n",  in mxcmci_finish_data()
451 			dev_err(mmc_dev(host->mmc), "%s: -EILSEQ\n", __func__);  in mxcmci_finish_data()
456 				dev_err(mmc_dev(host->mmc),  in mxcmci_finish_data()
460 				dev_err(mmc_dev(host->mmc),  in mxcmci_finish_data()
465 			dev_err(mmc_dev(host->mmc),  in mxcmci_finish_data()
469 			dev_err(mmc_dev(host->mmc), "%s: -EIO\n", __func__);  in mxcmci_finish_data()
493 		dev_dbg(mmc_dev(host->mmc), "CMD TIMEOUT\n");  in mxcmci_read_response()
496 		dev_dbg(mmc_dev(host->mmc), "cmd crc error\n");  in mxcmci_read_response()
722 	dev_dbg(mmc_dev(host->mmc), "%s: 0x%08x\n", __func__, stat);  in mxcmci_irq()
733 		mmc_signal_sdio_irq(host->mmc);  in mxcmci_irq()
746 		mmc_detect_change(host->mmc, msecs_to_jiffies(200));  in mxcmci_irq()
751 static void mxcmci_request(struct mmc_host *mmc, struct mmc_request *req)  in mxcmci_request()  argument
753 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_request()
815 	dev_dbg(mmc_dev(host->mmc), "scaler: %d divider: %d in: %d out: %d\n",  in mxcmci_set_clk_rate()
819 static int mxcmci_setup_dma(struct mmc_host *mmc)  in mxcmci_setup_dma()  argument
821 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_setup_dma()
835 static void mxcmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)  in mxcmci_set_ios()  argument
837 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_set_ios()
851 		ret = mxcmci_setup_dma(mmc);  in mxcmci_set_ios()
853 			dev_err(mmc_dev(host->mmc),  in mxcmci_set_ios()
886 	struct mmc_host *mmc = data;  in mxcmci_detect_irq()  local
888 	dev_dbg(mmc_dev(mmc), "%s\n", __func__);  in mxcmci_detect_irq()
890 	mmc_detect_change(mmc, msecs_to_jiffies(250));  in mxcmci_detect_irq()
894 static int mxcmci_get_ro(struct mmc_host *mmc)  in mxcmci_get_ro()  argument
896 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_get_ro()
899 		return !!host->pdata->get_ro(mmc_dev(mmc));  in mxcmci_get_ro()
902 	 * context or gpio is invalid), then let the mmc core decide  in mxcmci_get_ro()
905 	return mmc_gpio_get_ro(mmc);  in mxcmci_get_ro()
908 static void mxcmci_enable_sdio_irq(struct mmc_host *mmc, int enable)  in mxcmci_enable_sdio_irq()  argument
910 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_enable_sdio_irq()
964 		dev_err(mmc_dev(host->mmc),  in mxcmci_watchdog()
968 		dev_err(mmc_dev(host->mmc),  in mxcmci_watchdog()
981 	mmc_request_done(host->mmc, req);  in mxcmci_watchdog()
994 	struct mmc_host *mmc;  in mxcmci_probe()  local
1008 	mmc = mmc_alloc_host(sizeof(*host), &pdev->dev);  in mxcmci_probe()
1009 	if (!mmc)  in mxcmci_probe()
1012 	host = mmc_priv(mmc);  in mxcmci_probe()
1022 	ret = mmc_of_parse(mmc);  in mxcmci_probe()
1025 	mmc->ops = &mxcmci_ops;  in mxcmci_probe()
1029 		mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;  in mxcmci_probe()
1031 		mmc->caps |= MMC_CAP_SDIO_IRQ;  in mxcmci_probe()
1033 	/* MMC core transfer sizes tunable parameters */  in mxcmci_probe()
1034 	mmc->max_blk_size = 2048;  in mxcmci_probe()
1035 	mmc->max_blk_count = 65535;  in mxcmci_probe()
1036 	mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;  in mxcmci_probe()
1037 	mmc->max_seg_size = mmc->max_req_size;  in mxcmci_probe()
1043 		mmc->max_segs = 64;  in mxcmci_probe()
1045 	host->mmc = mmc;  in mxcmci_probe()
1052 		dat3_card_detect = mmc_card_is_removable(mmc) &&  in mxcmci_probe()
1055 	ret = mmc_regulator_get_supply(mmc);  in mxcmci_probe()
1059 	if (!mmc->ocr_avail) {  in mxcmci_probe()
1061 			mmc->ocr_avail = pdata->ocr_avail;  in mxcmci_probe()
1063 			mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;  in mxcmci_probe()
1097 		dev_err(mmc_dev(host->mmc), "wrong rev.no. 0x%08x. aborting.\n",  in mxcmci_probe()
1102 	mmc->f_min = clk_get_rate(host->clk_per) >> 16;  in mxcmci_probe()
1103 	mmc->f_max = clk_get_rate(host->clk_per) >> 1;  in mxcmci_probe()
1134 		mmc->max_seg_size = dma_get_max_seg_size(  in mxcmci_probe()
1137 		dev_info(mmc_dev(host->mmc), "dma not available. Using PIO\n");  in mxcmci_probe()
1146 	platform_set_drvdata(pdev, mmc);  in mxcmci_probe()
1150 				host->mmc);  in mxcmci_probe()
1157 	ret = mmc_add_host(mmc);  in mxcmci_probe()
1173 	mmc_free_host(mmc);  in mxcmci_probe()
1180 	struct mmc_host *mmc = platform_get_drvdata(pdev);  in mxcmci_remove()  local
1181 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_remove()
1183 	mmc_remove_host(mmc);  in mxcmci_remove()
1186 		host->pdata->exit(&pdev->dev, mmc);  in mxcmci_remove()
1194 	mmc_free_host(mmc);  in mxcmci_remove()
1199 	struct mmc_host *mmc = dev_get_drvdata(dev);  in mxcmci_suspend()  local
1200 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_suspend()
1209 	struct mmc_host *mmc = dev_get_drvdata(dev);  in mxcmci_resume()  local
1210 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_resume()
1242 MODULE_ALIAS("platform:mxc-mmc");