2  * Support of SDHCI platform devices for Microchip PIC32.
7  * Inspired by sdhci-pltfm.c
26 #include "sdhci.h"
27 #include "sdhci-pltfm.h"
28 #include <linux/platform_data/sdhci-pic32.h>
55 	return clk_get_rate(sdhci_pdata->base_clk);  in pic32_sdhci_get_max_clock()
65 		if (host->version >= SDHCI_SPEC_300)  in pic32_sdhci_set_bus_width()
68 		if (host->version >= SDHCI_SPEC_300)  in pic32_sdhci_set_bus_width()
109 	u32 bus = readl(host->ioaddr + SDH_SHARED_BUS_CTRL);  in pic32_sdhci_shared_bus()
121 	writel(bus, host->ioaddr + SDH_SHARED_BUS_CTRL);  in pic32_sdhci_shared_bus()
131 	host->caps = readl(host->ioaddr + SDHCI_CAPABILITIES);  in pic32_sdhci_probe_platform()
132 	caps_slot_type = (host->caps & SDH_CAPS_SDH_SLOT_TYPE_MASK) >> 30;  in pic32_sdhci_probe_platform()
155 	plat_data = pdev->dev.platform_data;  in pic32_sdhci_probe()
156 	if (plat_data && plat_data->setup_dma) {  in pic32_sdhci_probe()
157 		ret = plat_data->setup_dma(ADMA_FIFO_RD_THSHLD,  in pic32_sdhci_probe()
163 	sdhci_pdata->sys_clk = devm_clk_get(&pdev->dev, "sys_clk");  in pic32_sdhci_probe()
164 	if (IS_ERR(sdhci_pdata->sys_clk)) {  in pic32_sdhci_probe()
165 		ret = PTR_ERR(sdhci_pdata->sys_clk);  in pic32_sdhci_probe()
166 		dev_err(&pdev->dev, "Error getting clock\n");  in pic32_sdhci_probe()
170 	ret = clk_prepare_enable(sdhci_pdata->sys_clk);  in pic32_sdhci_probe()
172 		dev_err(&pdev->dev, "Error enabling clock\n");  in pic32_sdhci_probe()
176 	sdhci_pdata->base_clk = devm_clk_get(&pdev->dev, "base_clk");  in pic32_sdhci_probe()
177 	if (IS_ERR(sdhci_pdata->base_clk)) {  in pic32_sdhci_probe()
178 		ret = PTR_ERR(sdhci_pdata->base_clk);  in pic32_sdhci_probe()
179 		dev_err(&pdev->dev, "Error getting clock\n");  in pic32_sdhci_probe()
183 	ret = clk_prepare_enable(sdhci_pdata->base_clk);  in pic32_sdhci_probe()
185 		dev_err(&pdev->dev, "Error enabling clock\n");  in pic32_sdhci_probe()
189 	ret = mmc_of_parse(host->mmc);  in pic32_sdhci_probe()
199 	dev_info(&pdev->dev, "Successfully added sdhci host\n");  in pic32_sdhci_probe()
203 	clk_disable_unprepare(sdhci_pdata->base_clk);  in pic32_sdhci_probe()
205 	clk_disable_unprepare(sdhci_pdata->sys_clk);  in pic32_sdhci_probe()
209 	dev_err(&pdev->dev, "pic32-sdhci probe failed: %d\n", ret);  in pic32_sdhci_probe()
219 	scratch = readl(host->ioaddr + SDHCI_INT_STATUS);  in pic32_sdhci_remove()
221 	clk_disable_unprepare(sdhci_pdata->base_clk);  in pic32_sdhci_remove()
222 	clk_disable_unprepare(sdhci_pdata->sys_clk);  in pic32_sdhci_remove()
227 	{ .compatible = "microchip,pic32mzda-sdhci" },
234 		.name	= "pic32-sdhci",
244 MODULE_DESCRIPTION("Microchip PIC32 SDHCI driver");