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()
132 	host->caps = readl(host->ioaddr + SDHCI_CAPABILITIES);  in pic32_sdhci_probe_platform()
133 	caps_slot_type = (host->caps & SDH_CAPS_SDH_SLOT_TYPE_MASK) >> 30;  in pic32_sdhci_probe_platform()
158 	plat_data = pdev->dev.platform_data;  in pic32_sdhci_probe()
159 	if (plat_data && plat_data->setup_dma) {  in pic32_sdhci_probe()
160 		ret = plat_data->setup_dma(ADMA_FIFO_RD_THSHLD,  in pic32_sdhci_probe()
166 	sdhci_pdata->sys_clk = devm_clk_get(&pdev->dev, "sys_clk");  in pic32_sdhci_probe()
167 	if (IS_ERR(sdhci_pdata->sys_clk)) {  in pic32_sdhci_probe()
168 		ret = PTR_ERR(sdhci_pdata->sys_clk);  in pic32_sdhci_probe()
169 		dev_err(&pdev->dev, "Error getting clock\n");  in pic32_sdhci_probe()
173 	ret = clk_prepare_enable(sdhci_pdata->sys_clk);  in pic32_sdhci_probe()
175 		dev_err(&pdev->dev, "Error enabling clock\n");  in pic32_sdhci_probe()
179 	sdhci_pdata->base_clk = devm_clk_get(&pdev->dev, "base_clk");  in pic32_sdhci_probe()
180 	if (IS_ERR(sdhci_pdata->base_clk)) {  in pic32_sdhci_probe()
181 		ret = PTR_ERR(sdhci_pdata->base_clk);  in pic32_sdhci_probe()
182 		dev_err(&pdev->dev, "Error getting clock\n");  in pic32_sdhci_probe()
186 	ret = clk_prepare_enable(sdhci_pdata->base_clk);  in pic32_sdhci_probe()
188 		dev_err(&pdev->dev, "Error enabling clock\n");  in pic32_sdhci_probe()
192 	ret = mmc_of_parse(host->mmc);  in pic32_sdhci_probe()
198 		dev_err(&pdev->dev, "failed to probe platform!\n");  in pic32_sdhci_probe()
206 	dev_info(&pdev->dev, "Successfully added sdhci host\n");  in pic32_sdhci_probe()
210 	clk_disable_unprepare(sdhci_pdata->base_clk);  in pic32_sdhci_probe()
212 	clk_disable_unprepare(sdhci_pdata->sys_clk);  in pic32_sdhci_probe()
216 	dev_err(&pdev->dev, "pic32-sdhci probe failed: %d\n", ret);  in pic32_sdhci_probe()
226 	scratch = readl(host->ioaddr + SDHCI_INT_STATUS);  in pic32_sdhci_remove()
228 	clk_disable_unprepare(sdhci_pdata->base_clk);  in pic32_sdhci_remove()
229 	clk_disable_unprepare(sdhci_pdata->sys_clk);  in pic32_sdhci_remove()
236 	{ .compatible = "microchip,pic32mzda-sdhci" },
243 		.name	= "pic32-sdhci",
253 MODULE_DESCRIPTION("Microchip PIC32 SDHCI driver");