2  * sdhci-pltfm.c Support for SDHCI platform devices
28  * Inspired by sdhci-pci.c, by Pierre Ossman
37 #include "sdhci-pltfm.h"
43 	return clk_get_rate(pltfm_host->clk);  in sdhci_pltfm_clk_get_max_clock()
57 	if (of_get_property(np, "sdhci,wp-inverted", NULL) ||  in sdhci_of_wp_inverted()
58 	    of_get_property(np, "wp-inverted", NULL))  in sdhci_of_wp_inverted()
61 	/* Old device trees don't have the wp-inverted property. */  in sdhci_of_wp_inverted()
71 	struct device_node *np = pdev->dev.of_node;  in sdhci_get_of_property()
76 	if (of_get_property(np, "sdhci,auto-cmd12", NULL))  in sdhci_get_of_property()
77 		host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;  in sdhci_get_of_property()
79 	if (of_get_property(np, "sdhci,1-bit-only", NULL) ||  in sdhci_get_of_property()
80 	    (of_property_read_u32(np, "bus-width", &bus_width) == 0 &&  in sdhci_get_of_property()
82 		host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA;  in sdhci_get_of_property()
85 		host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT;  in sdhci_get_of_property()
87 	if (of_get_property(np, "broken-cd", NULL))  in sdhci_get_of_property()
88 		host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;  in sdhci_get_of_property()
90 	if (of_get_property(np, "no-1-8-v", NULL))  in sdhci_get_of_property()
91 		host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;  in sdhci_get_of_property()
93 	if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc"))  in sdhci_get_of_property()
94 		host->quirks |= SDHCI_QUIRK_BROKEN_DMA;  in sdhci_get_of_property()
96 	if (of_device_is_compatible(np, "fsl,p2020-esdhc") ||  in sdhci_get_of_property()
97 	    of_device_is_compatible(np, "fsl,p1010-esdhc") ||  in sdhci_get_of_property()
98 	    of_device_is_compatible(np, "fsl,t4240-esdhc") ||  in sdhci_get_of_property()
99 	    of_device_is_compatible(np, "fsl,mpc8536-esdhc"))  in sdhci_get_of_property()
100 		host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;  in sdhci_get_of_property()
102 	of_property_read_u32(np, "clock-frequency", &pltfm_host->clock);  in sdhci_get_of_property()
104 	if (of_find_property(np, "keep-power-in-suspend", NULL))  in sdhci_get_of_property()
105 		host->mmc->pm_caps |= MMC_PM_KEEP_POWER;  in sdhci_get_of_property()
107 	if (of_property_read_bool(np, "wakeup-source") ||  in sdhci_get_of_property()
108 	    of_property_read_bool(np, "enable-sdio-wakeup")) /* legacy */  in sdhci_get_of_property()
109 		host->mmc->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;  in sdhci_get_of_property()
126 	ioaddr = devm_ioremap_resource(&pdev->dev, iomem);  in sdhci_pltfm_init()
134 		dev_err(&pdev->dev, "failed to get IRQ number\n");  in sdhci_pltfm_init()
139 	host = sdhci_alloc_host(&pdev->dev,  in sdhci_pltfm_init()
147 	host->ioaddr = ioaddr;  in sdhci_pltfm_init()
148 	host->irq = irq;  in sdhci_pltfm_init()
149 	host->hw_name = dev_name(&pdev->dev);  in sdhci_pltfm_init()
150 	if (pdata && pdata->ops)  in sdhci_pltfm_init()
151 		host->ops = pdata->ops;  in sdhci_pltfm_init()
153 		host->ops = &sdhci_pltfm_ops;  in sdhci_pltfm_init()
155 		host->quirks = pdata->quirks;  in sdhci_pltfm_init()
156 		host->quirks2 = pdata->quirks2;  in sdhci_pltfm_init()
163 	dev_err(&pdev->dev, "%s failed %d\n", __func__, ret);  in sdhci_pltfm_init()
201 	int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);  in sdhci_pltfm_unregister()
204 	clk_disable_unprepare(pltfm_host->clk);  in sdhci_pltfm_unregister()
218 	if (host->tuning_mode != SDHCI_TUNING_MODE_3)  in sdhci_pltfm_suspend()
219 		mmc_retune_needed(host->mmc);  in sdhci_pltfm_suspend()
225 	clk_disable_unprepare(pltfm_host->clk);  in sdhci_pltfm_suspend()
237 	ret = clk_prepare_enable(pltfm_host->clk);  in sdhci_pltfm_resume()
243 		clk_disable_unprepare(pltfm_host->clk);  in sdhci_pltfm_resume()
257 	pr_info("sdhci-pltfm: SDHCI platform and OF driver helper\n");  in sdhci_pltfm_drv_init()