1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
new file mode 100644
index 000000000..9901208be
--- /dev/null
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Synopsys DesignWare Multimedia Card Interface driver
+ *
+ * Copyright (C) 2009 NXP Semiconductors
+ * Copyright (C) 2009, 2010 Imagination Technologies Ltd.
+ */
+
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/mmc.h>
+#include <linux/of.h>
+
+#include "dw_mmc.h"
+#include "dw_mmc-pltfm.h"
+
+int dw_mci_pltfm_register(struct platform_device *pdev,
+			  const struct dw_mci_drv_data *drv_data)
+{
+	struct dw_mci *host;
+	struct resource	*regs;
+
+	host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
+	if (!host)
+		return -ENOMEM;
+
+	host->irq = platform_get_irq(pdev, 0);
+	if (host->irq < 0)
+		return host->irq;
+
+	host->drv_data = drv_data;
+	host->dev = &pdev->dev;
+	host->irq_flags = 0;
+	host->pdata = pdev->dev.platform_data;
+
+	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	host->regs = devm_ioremap_resource(&pdev->dev, regs);
+	if (IS_ERR(host->regs))
+		return PTR_ERR(host->regs);
+
+	/* Get registers' physical base address */
+	host->phy_regs = regs->start;
+
+	platform_set_drvdata(pdev, host);
+	return dw_mci_probe(host);
+}
+EXPORT_SYMBOL_GPL(dw_mci_pltfm_register);
+
+const struct dev_pm_ops dw_mci_pltfm_pmops = {
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+	SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend,
+			   dw_mci_runtime_resume,
+			   NULL)
+};
+EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops);
+
+static const struct of_device_id dw_mci_pltfm_match[] = {
+	{ .compatible = "snps,dw-mshc", },
+	{ .compatible = "altr,socfpga-dw-mshc", },
+	{ .compatible = "img,pistachio-dw-mshc", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);
+
+static int dw_mci_pltfm_probe(struct platform_device *pdev)
+{
+	const struct dw_mci_drv_data *drv_data = NULL;
+	const struct of_device_id *match;
+
+	if (pdev->dev.of_node) {
+		match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node);
+		drv_data = match->data;
+	}
+
+	return dw_mci_pltfm_register(pdev, drv_data);
+}
+
+int dw_mci_pltfm_remove(struct platform_device *pdev)
+{
+	struct dw_mci *host = platform_get_drvdata(pdev);
+
+	dw_mci_remove(host);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove);
+
+static struct platform_driver dw_mci_pltfm_driver = {
+	.probe		= dw_mci_pltfm_probe,
+	.remove		= dw_mci_pltfm_remove,
+	.driver		= {
+		.name		= "dw_mmc",
+		.probe_type	= PROBE_PREFER_ASYNCHRONOUS,
+		.of_match_table	= dw_mci_pltfm_match,
+		.pm		= &dw_mci_pltfm_pmops,
+	},
+};
+
+module_platform_driver(dw_mci_pltfm_driver);
+
+MODULE_DESCRIPTION("DW Multimedia Card Interface driver");
+MODULE_AUTHOR("NXP Semiconductor VietNam");
+MODULE_AUTHOR("Imagination Technologies Ltd");
+MODULE_LICENSE("GPL v2");