3  * Loongson-2K MMC/SDIO controller driver
17 #include <linux/mmc/core.h>
18 #include <linux/mmc/host.h>
19 #include <linux/mmc/mmc.h>
20 #include <linux/mmc/sd.h>
21 #include <linux/mmc/sdio.h>
22 #include <linux/mmc/slot-gpio.h>
325 static void loongson2_mmc_send_request(struct mmc_host *mmc)  in loongson2_mmc_send_request()  argument
328 	struct loongson2_mmc_host *host = mmc_priv(mmc);  in loongson2_mmc_send_request()
337 		mmc_request_done(mmc, mrq);  in loongson2_mmc_send_request()
349 		mmc_request_done(mmc, mrq);  in loongson2_mmc_send_request()
356 	struct mmc_host *mmc = mmc_from_priv(host);  in loongson2_mmc_irq_worker()  local
361 		dma_unmap_sg(mmc_dev(mmc), cmd->data->sg, cmd->data->sg_len,  in loongson2_mmc_irq_worker()
383 		loongson2_mmc_send_request(mmc);  in loongson2_mmc_irq_worker()
402 	mmc_request_done(mmc, mrq);  in loongson2_mmc_irq_worker()
409 	struct mmc_host *mmc = mmc_from_priv(host);  in loongson2_mmc_irq()  local
422 		sdio_signal_irq(mmc);  in loongson2_mmc_irq()
536 static void loongson2_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)  in loongson2_mmc_set_ios()  argument
538 	struct loongson2_mmc_host *host = mmc_priv(mmc);  in loongson2_mmc_set_ios()
542 		if (!IS_ERR(mmc->supply.vmmc)) {  in loongson2_mmc_set_ios()
543 			ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);  in loongson2_mmc_set_ios()
557 		if (!IS_ERR(mmc->supply.vmmc))  in loongson2_mmc_set_ios()
558 			mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);  in loongson2_mmc_set_ios()
567 static void loongson2_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)  in loongson2_mmc_request()  argument
569 	struct loongson2_mmc_host *host = mmc_priv(mmc);  in loongson2_mmc_request()
573 	loongson2_mmc_send_request(mmc);  in loongson2_mmc_request()
576 static void loongson2_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)  in loongson2_mmc_enable_sdio_irq()  argument
578 	struct loongson2_mmc_host *host = mmc_priv(mmc);  in loongson2_mmc_enable_sdio_irq()
583 static void loongson2_mmc_ack_sdio_irq(struct mmc_host *mmc)  in loongson2_mmc_ack_sdio_irq()  argument
585 	loongson2_mmc_enable_sdio_irq(mmc, 1);  in loongson2_mmc_ack_sdio_irq()
643 	struct mmc_host *mmc = mmc_from_priv(host);  in loongson2_mmc_prepare_external_dma()  local
648 	ret = dma_map_sg(mmc_dev(mmc), data->sg, data->sg_len,  in loongson2_mmc_prepare_external_dma()
672 	dma_unmap_sg(mmc_dev(mmc), data->sg, data->sg_len, mmc_get_dma_dir(data));  in loongson2_mmc_prepare_external_dma()
792 	struct mmc_host *mmc = mmc_from_priv(host);  in loongson2_mmc_prepare_internal_dma()  local
799 	ret = dma_map_sg(mmc_dev(mmc), data->sg, data->sg_len,  in loongson2_mmc_prepare_internal_dma()
904 					IRQF_ONESHOT, "loongson2-mmc", host);  in loongson2_mmc_resource_request()
919 	struct mmc_host	*mmc;  in loongson2_mmc_probe()  local
922 	mmc = devm_mmc_alloc_host(dev, sizeof(*host));  in loongson2_mmc_probe()
923 	if (!mmc)  in loongson2_mmc_probe()
926 	platform_set_drvdata(pdev, mmc);  in loongson2_mmc_probe()
928 	host = mmc_priv(mmc);  in loongson2_mmc_probe()
940 	mmc->ops = &loongson2_mmc_ops;  in loongson2_mmc_probe()
941 	mmc->f_min = DIV_ROUND_UP(host->current_clk, 256);  in loongson2_mmc_probe()
942 	mmc->f_max = host->current_clk;  in loongson2_mmc_probe()
943 	mmc->max_blk_count = 4095;  in loongson2_mmc_probe()
944 	mmc->max_blk_size = 4095;  in loongson2_mmc_probe()
945 	mmc->max_req_size = mmc->max_blk_count * mmc->max_blk_size;  in loongson2_mmc_probe()
946 	mmc->max_segs = 1;  in loongson2_mmc_probe()
947 	mmc->max_seg_size = mmc->max_req_size;  in loongson2_mmc_probe()
950 	if (mmc->caps & MMC_CAP_SDIO_IRQ)  in loongson2_mmc_probe()
951 		mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;  in loongson2_mmc_probe()
953 	ret = mmc_regulator_get_supply(mmc);  in loongson2_mmc_probe()
954 	if (ret || mmc->ocr_avail == 0) {  in loongson2_mmc_probe()
956 		mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;  in loongson2_mmc_probe()
959 	ret = mmc_of_parse(mmc);  in loongson2_mmc_probe()
965 	ret = mmc_add_host(mmc);  in loongson2_mmc_probe()
967 		dev_err(dev, "Failed to add mmc host\n");  in loongson2_mmc_probe()
980 	struct mmc_host *mmc  = platform_get_drvdata(pdev);  in loongson2_mmc_remove()  local
981 	struct loongson2_mmc_host *host = mmc_priv(mmc);  in loongson2_mmc_remove()
983 	mmc_remove_host(mmc);  in loongson2_mmc_remove()
988 	{ .compatible = "loongson,ls2k0500-mmc", .data = &ls2k0500_mmc_pdata },
989 	{ .compatible = "loongson,ls2k1000-mmc", .data = &ls2k1000_mmc_pdata },
990 	{ .compatible = "loongson,ls2k2000-mmc", .data = &ls2k2000_mmc_pdata },
997 	struct mmc_host *mmc = dev_get_drvdata(dev);  in loongson2_mmc_suspend()  local
998 	struct loongson2_mmc_host *host = mmc_priv(mmc);  in loongson2_mmc_suspend()
1007 	struct mmc_host *mmc = dev_get_drvdata(dev);  in loongson2_mmc_resume()  local
1008 	struct loongson2_mmc_host *host = mmc_priv(mmc);  in loongson2_mmc_resume()
1017 		.name = "loongson2-mmc",