3  *  linux/drivers/mmc/host/mxcmmc.c - Freescale i.MX MMCI driver
25 #include <linux/mmc/host.h>
26 #include <linux/mmc/card.h>
36 #include <linux/mmc/slot-gpio.h>
40 #include <linux/platform_data/mmc-mxcmmc.h>
44 #define DRIVER_NAME "mxc-mmc"
121 	struct mmc_host		*mmc;  member
162 		.name = "imx21-mmc",
165 		.name = "imx31-mmc",
178 		.compatible = "fsl,imx21-mmc",
181 		.compatible = "fsl,imx31-mmc",
238 	if (!IS_ERR(host->mmc->supply.vmmc)) {  in mxcmci_set_power()
240 			mmc_regulator_set_ocr(host->mmc,  in mxcmci_set_power()
241 					      host->mmc->supply.vmmc, vdd);  in mxcmci_set_power()
243 			mmc_regulator_set_ocr(host->mmc,  in mxcmci_set_power()
244 					      host->mmc->supply.vmmc, 0);  in mxcmci_set_power()
248 		host->pdata->setpower(mmc_dev(host->mmc), vdd);  in mxcmci_set_power()
260 	dev_dbg(mmc_dev(host->mmc), "mxcmci_softreset\n");  in mxcmci_softreset()
369 	dev_dbg(mmc_dev(host->mmc), "%s: 0x%08x\n", __func__, stat);  in mxcmci_dma_callback()
397 		dev_err(mmc_dev(host->mmc), "unhandled response type 0x%x\n",  in mxcmci_start_cmd()
443 	mmc_request_done(host->mmc, req);  in mxcmci_finish_request()
458 		dev_dbg(mmc_dev(host->mmc), "request failed. status: 0x%08x\n",  in mxcmci_finish_data()
461 			dev_err(mmc_dev(host->mmc), "%s: -EILSEQ\n", __func__);  in mxcmci_finish_data()
466 				dev_err(mmc_dev(host->mmc),  in mxcmci_finish_data()
470 				dev_err(mmc_dev(host->mmc),  in mxcmci_finish_data()
475 			dev_err(mmc_dev(host->mmc),  in mxcmci_finish_data()
479 			dev_err(mmc_dev(host->mmc), "%s: -EIO\n", __func__);  in mxcmci_finish_data()
503 		dev_dbg(mmc_dev(host->mmc), "CMD TIMEOUT\n");  in mxcmci_read_response()
506 		dev_dbg(mmc_dev(host->mmc), "cmd crc error\n");  in mxcmci_read_response()
726 	dev_dbg(mmc_dev(host->mmc), "%s: 0x%08x\n", __func__, stat);  in mxcmci_irq()
737 		mmc_signal_sdio_irq(host->mmc);  in mxcmci_irq()
750 		mmc_detect_change(host->mmc, msecs_to_jiffies(200));  in mxcmci_irq()
755 static void mxcmci_request(struct mmc_host *mmc, struct mmc_request *req)  in mxcmci_request()  argument
757 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_request()
819 	dev_dbg(mmc_dev(host->mmc), "scaler: %d divider: %d in: %d out: %d\n",  in mxcmci_set_clk_rate()
823 static int mxcmci_setup_dma(struct mmc_host *mmc)  in mxcmci_setup_dma()  argument
825 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_setup_dma()
839 static void mxcmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)  in mxcmci_set_ios()  argument
841 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_set_ios()
855 		ret = mxcmci_setup_dma(mmc);  in mxcmci_set_ios()
857 			dev_err(mmc_dev(host->mmc),  in mxcmci_set_ios()
890 	struct mmc_host *mmc = data;  in mxcmci_detect_irq()  local
892 	dev_dbg(mmc_dev(mmc), "%s\n", __func__);  in mxcmci_detect_irq()
894 	mmc_detect_change(mmc, msecs_to_jiffies(250));  in mxcmci_detect_irq()
898 static int mxcmci_get_ro(struct mmc_host *mmc)  in mxcmci_get_ro()  argument
900 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_get_ro()
903 		return !!host->pdata->get_ro(mmc_dev(mmc));  in mxcmci_get_ro()
906 	 * context or gpio is invalid), then let the mmc core decide  in mxcmci_get_ro()
909 	return mmc_gpio_get_ro(mmc);  in mxcmci_get_ro()
912 static void mxcmci_enable_sdio_irq(struct mmc_host *mmc, int enable)  in mxcmci_enable_sdio_irq()  argument
914 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_enable_sdio_irq()
968 		dev_err(mmc_dev(host->mmc),  in mxcmci_watchdog()
972 		dev_err(mmc_dev(host->mmc),  in mxcmci_watchdog()
985 	mmc_request_done(host->mmc, req);  in mxcmci_watchdog()
998 	struct mmc_host *mmc;  in mxcmci_probe()  local
1016 	mmc = mmc_alloc_host(sizeof(*host), &pdev->dev);  in mxcmci_probe()
1017 	if (!mmc)  in mxcmci_probe()
1020 	host = mmc_priv(mmc);  in mxcmci_probe()
1030 	ret = mmc_of_parse(mmc);  in mxcmci_probe()
1033 	mmc->ops = &mxcmci_ops;  in mxcmci_probe()
1037 		mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;  in mxcmci_probe()
1039 		mmc->caps |= MMC_CAP_SDIO_IRQ;  in mxcmci_probe()
1041 	/* MMC core transfer sizes tunable parameters */  in mxcmci_probe()
1042 	mmc->max_blk_size = 2048;  in mxcmci_probe()
1043 	mmc->max_blk_count = 65535;  in mxcmci_probe()
1044 	mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;  in mxcmci_probe()
1045 	mmc->max_seg_size = mmc->max_req_size;  in mxcmci_probe()
1056 		mmc->max_segs = 64;  in mxcmci_probe()
1058 	host->mmc = mmc;  in mxcmci_probe()
1064 	else if (mmc_card_is_removable(mmc)  in mxcmci_probe()
1068 	ret = mmc_regulator_get_supply(mmc);  in mxcmci_probe()
1072 	if (!mmc->ocr_avail) {  in mxcmci_probe()
1074 			mmc->ocr_avail = pdata->ocr_avail;  in mxcmci_probe()
1076 			mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;  in mxcmci_probe()
1110 		dev_err(mmc_dev(host->mmc), "wrong rev.no. 0x%08x. aborting.\n",  in mxcmci_probe()
1115 	mmc->f_min = clk_get_rate(host->clk_per) >> 16;  in mxcmci_probe()
1116 	mmc->f_max = clk_get_rate(host->clk_per) >> 1;  in mxcmci_probe()
1147 		mmc->max_seg_size = dma_get_max_seg_size(  in mxcmci_probe()
1150 		dev_info(mmc_dev(host->mmc), "dma not available. Using PIO\n");  in mxcmci_probe()
1159 	platform_set_drvdata(pdev, mmc);  in mxcmci_probe()
1163 				host->mmc);  in mxcmci_probe()
1170 	mmc_add_host(mmc);  in mxcmci_probe()
1184 	mmc_free_host(mmc);  in mxcmci_probe()
1191 	struct mmc_host *mmc = platform_get_drvdata(pdev);  in mxcmci_remove()  local
1192 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_remove()
1194 	mmc_remove_host(mmc);  in mxcmci_remove()
1197 		host->pdata->exit(&pdev->dev, mmc);  in mxcmci_remove()
1205 	mmc_free_host(mmc);  in mxcmci_remove()
1213 	struct mmc_host *mmc = dev_get_drvdata(dev);  in mxcmci_suspend()  local
1214 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_suspend()
1223 	struct mmc_host *mmc = dev_get_drvdata(dev);  in mxcmci_resume()  local
1224 	struct mxcmci_host *host = mmc_priv(mmc);  in mxcmci_resume()
1258 MODULE_ALIAS("platform:mxc-mmc");