4  * Portions copyright (C) 2004-2005 Pierre Ossman, W83L51xD SD/MMC driver
24 #include <linux/mmc/host.h>
25 #include <linux/mmc/mmc.h>
26 #include <linux/mmc/sdio.h>
27 #include <linux/mmc/slot-gpio.h>
33 #define DRIVER_NAME	"mxs-mmc"
50 	struct mmc_host			*mmc;  member
61 static int mxs_mmc_get_cd(struct mmc_host *mmc)  in mxs_mmc_get_cd()  argument
63 	struct mxs_mmc_host *host = mmc_priv(mmc);  in mxs_mmc_get_cd()
70 	ret = mmc_gpio_get_cd(mmc);  in mxs_mmc_get_cd()
74 	present = mmc->caps & MMC_CAP_NEEDS_POLL ||  in mxs_mmc_get_cd()
78 	if (mmc->caps2 & MMC_CAP2_CD_ACTIVE_HIGH)  in mxs_mmc_get_cd()
146 		dma_unmap_sg(mmc_dev(host->mmc), data->sg,  in mxs_mmc_request_done()
165 	mmc_request_done(host->mmc, mrq);  in mxs_mmc_request_done()
192 		mmc_signal_sdio_irq(host->mmc);  in mxs_mmc_irq_handler()
224 		dma_map_sg(mmc_dev(host->mmc), data->sg,  in mxs_mmc_prep_dma()
241 			dma_unmap_sg(mmc_dev(host->mmc), data->sg,  in mxs_mmc_prep_dma()
278 	dev_warn(mmc_dev(host->mmc),  in mxs_mmc_bc()
323 	dev_warn(mmc_dev(host->mmc),  in mxs_mmc_ac()
452 	dev_warn(mmc_dev(host->mmc),  in mxs_mmc_adtc()
475 		dev_warn(mmc_dev(host->mmc),  in mxs_mmc_start_cmd()
476 			 "%s: unknown MMC command\n", __func__);  in mxs_mmc_start_cmd()
481 static void mxs_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)  in mxs_mmc_request()  argument
483 	struct mxs_mmc_host *host = mmc_priv(mmc);  in mxs_mmc_request()
494 static void mxs_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)  in mxs_mmc_set_ios()  argument
496 	struct mxs_mmc_host *host = mmc_priv(mmc);  in mxs_mmc_set_ios()
509 static void mxs_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)  in mxs_mmc_enable_sdio_irq()  argument
511 	struct mxs_mmc_host *host = mmc_priv(mmc);  in mxs_mmc_enable_sdio_irq()
535 		mmc_signal_sdio_irq(host->mmc);  in mxs_mmc_enable_sdio_irq()
548 	{ .compatible = "fsl,imx23-mmc", .data = (void *) IMX23_SSP, },
549 	{ .compatible = "fsl,imx28-mmc", .data = (void *) IMX28_SSP, },
563 	struct mmc_host *mmc;  in mxs_mmc_probe()  local
572 	mmc = mmc_alloc_host(sizeof(struct mxs_mmc_host), &pdev->dev);  in mxs_mmc_probe()
573 	if (!mmc)  in mxs_mmc_probe()
576 	host = mmc_priv(mmc);  in mxs_mmc_probe()
587 	host->mmc = mmc;  in mxs_mmc_probe()
616 		dev_err(&pdev->dev, "Failed to reset mmc: %d\n", ret);  in mxs_mmc_probe()
622 		dev_err(mmc_dev(host->mmc),  in mxs_mmc_probe()
628 	/* set mmc core parameters */  in mxs_mmc_probe()
629 	mmc->ops = &mxs_mmc_ops;  in mxs_mmc_probe()
630 	mmc->caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED |  in mxs_mmc_probe()
635 	mmc->f_min = 400000;  in mxs_mmc_probe()
636 	mmc->f_max = 288000000;  in mxs_mmc_probe()
638 	ret = mmc_of_parse(mmc);  in mxs_mmc_probe()
642 	mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;  in mxs_mmc_probe()
644 	mmc->max_segs = 52;  in mxs_mmc_probe()
645 	mmc->max_blk_size = 1 << 0xf;  in mxs_mmc_probe()
646 	mmc->max_blk_count = (ssp_is_old(ssp)) ? 0xff : 0xffffff;  in mxs_mmc_probe()
647 	mmc->max_req_size = (ssp_is_old(ssp)) ? 0xffff : 0xffffffff;  in mxs_mmc_probe()
648 	mmc->max_seg_size = dma_get_max_seg_size(ssp->dmach->device->dev);  in mxs_mmc_probe()
650 	platform_set_drvdata(pdev, mmc);  in mxs_mmc_probe()
659 	ret = mmc_add_host(mmc);  in mxs_mmc_probe()
663 	dev_info(mmc_dev(host->mmc), "initialized\n");  in mxs_mmc_probe()
672 	mmc_free_host(mmc);  in mxs_mmc_probe()
678 	struct mmc_host *mmc = platform_get_drvdata(pdev);  in mxs_mmc_remove()  local
679 	struct mxs_mmc_host *host = mmc_priv(mmc);  in mxs_mmc_remove()
682 	mmc_remove_host(mmc);  in mxs_mmc_remove()
689 	mmc_free_host(mmc);  in mxs_mmc_remove()
695 	struct mmc_host *mmc = dev_get_drvdata(dev);  in mxs_mmc_suspend()  local
696 	struct mxs_mmc_host *host = mmc_priv(mmc);  in mxs_mmc_suspend()
705 	struct mmc_host *mmc = dev_get_drvdata(dev);  in mxs_mmc_resume()  local
706 	struct mxs_mmc_host *host = mmc_priv(mmc);  in mxs_mmc_resume()
728 MODULE_DESCRIPTION("FREESCALE MXS MMC peripheral");