1 // SPDX-License-Identifier: GPL-2.0-only
14 #include <linux/clk.h>
25 #include "sdhci-pltfm.h"
46 	struct platform_device *pdev = to_platform_device(mmc_dev(host->mmc));  in pxav2_reset()
47 	struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data;  in pxav2_reset()
58 		if (pdata && pdata->clk_delay_sel == 1) {  in pxav2_reset()
59 			tmp = readw(host->ioaddr + SD_CLOCK_BURST_SIZE_SETUP);  in pxav2_reset()
62 			tmp |= (pdata->clk_delay_cycles & SDCLK_DELAY_MASK)  in pxav2_reset()
67 			writew(tmp, host->ioaddr + SD_CLOCK_BURST_SIZE_SETUP);  in pxav2_reset()
70 		if (pdata && (pdata->flags & PXA_FLAG_ENABLE_CLOCK_GATING)) {  in pxav2_reset()
71 			tmp = readw(host->ioaddr + SD_FIFO_PARAM);  in pxav2_reset()
73 			writew(tmp, host->ioaddr + SD_FIFO_PARAM);  in pxav2_reset()
75 			tmp = readw(host->ioaddr + SD_FIFO_PARAM);  in pxav2_reset()
78 			writew(tmp, host->ioaddr + SD_FIFO_PARAM);  in pxav2_reset()
88 	ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL);  in pxav2_mmc_set_bus_width()
89 	tmp = readw(host->ioaddr + SD_CE_ATA_2);  in pxav2_mmc_set_bus_width()
100 	writew(tmp, host->ioaddr + SD_CE_ATA_2);  in pxav2_mmc_set_bus_width()
101 	writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL);  in pxav2_mmc_set_bus_width()
115 		.compatible = "mrvl,pxav2-mmc",
124 	struct device_node *np = dev->of_node;  in pxav2_get_mmc_pdata()
132 	if (of_find_property(np, "non-removable", NULL))  in pxav2_get_mmc_pdata()
133 		pdata->flags |= PXA_FLAG_CARD_PERMANENT;  in pxav2_get_mmc_pdata()
135 	of_property_read_u32(np, "bus-width", &bus_width);  in pxav2_get_mmc_pdata()
137 		pdata->flags |= PXA_FLAG_SD_8_BIT_CAPABLE_SLOT;  in pxav2_get_mmc_pdata()
139 	of_property_read_u32(np, "mrvl,clk-delay-cycles", &clk_delay_cycles);  in pxav2_get_mmc_pdata()
141 		pdata->clk_delay_sel = 1;  in pxav2_get_mmc_pdata()
142 		pdata->clk_delay_cycles = clk_delay_cycles;  in pxav2_get_mmc_pdata()
157 	struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data;  in sdhci_pxav2_probe()
158 	struct device *dev = &pdev->dev;  in sdhci_pxav2_probe()
163 	struct clk *clk;  in sdhci_pxav2_probe()  local
171 	clk = devm_clk_get(dev, "PXA-SDHCLK");  in sdhci_pxav2_probe()
172 	if (IS_ERR(clk)) {  in sdhci_pxav2_probe()
174 		ret = PTR_ERR(clk);  in sdhci_pxav2_probe()
177 	pltfm_host->clk = clk;  in sdhci_pxav2_probe()
178 	ret = clk_prepare_enable(clk);  in sdhci_pxav2_probe()
180 		dev_err(&pdev->dev, "failed to enable io clock\n");  in sdhci_pxav2_probe()
184 	host->quirks = SDHCI_QUIRK_BROKEN_ADMA  in sdhci_pxav2_probe()
188 	match = of_match_device(of_match_ptr(sdhci_pxav2_of_match), &pdev->dev);  in sdhci_pxav2_probe()
193 		if (pdata->flags & PXA_FLAG_CARD_PERMANENT) {  in sdhci_pxav2_probe()
194 			/* on-chip device */  in sdhci_pxav2_probe()
195 			host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;  in sdhci_pxav2_probe()
196 			host->mmc->caps |= MMC_CAP_NONREMOVABLE;  in sdhci_pxav2_probe()
200 		if (pdata->flags & PXA_FLAG_SD_8_BIT_CAPABLE_SLOT)  in sdhci_pxav2_probe()
201 			host->mmc->caps |= MMC_CAP_8_BIT_DATA;  in sdhci_pxav2_probe()
203 		if (pdata->quirks)  in sdhci_pxav2_probe()
204 			host->quirks |= pdata->quirks;  in sdhci_pxav2_probe()
205 		if (pdata->host_caps)  in sdhci_pxav2_probe()
206 			host->mmc->caps |= pdata->host_caps;  in sdhci_pxav2_probe()
207 		if (pdata->pm_caps)  in sdhci_pxav2_probe()
208 			host->mmc->pm_caps |= pdata->pm_caps;  in sdhci_pxav2_probe()
211 	host->ops = &pxav2_sdhci_ops;  in sdhci_pxav2_probe()
220 	clk_disable_unprepare(clk);  in sdhci_pxav2_probe()
228 		.name	= "sdhci-pxav2",