1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/usb/isp1760/isp1760-if.c b/drivers/usb/isp1760/isp1760-if.c
new file mode 100644
index 0000000000..c96ab459f9
--- /dev/null
+++ b/drivers/usb/isp1760/isp1760-if.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2021 Linaro, Rui Miguel Silva <rui.silva@linaro.org>
+ *
+ * based on original code from:
+ * (c) 2007 Sebastian Siewior <bigeasy@linutronix.de>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/device-internal.h>
+#include <dm/device_compat.h>
+#include <dm/devres.h>
+#include <dm/lists.h>
+#include <linux/bug.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/usb/otg.h>
+#include <log.h>
+#include <usb.h>
+
+#include "isp1760-core.h"
+#include "isp1760-regs.h"
+#include "isp1760-uboot.h"
+
+static int isp1760_of_to_plat(struct udevice *dev)
+{
+	struct isp1760_device *isp = dev_get_plat(dev);
+	unsigned int devflags = 0;
+	u32 bus_width = 0;
+	ofnode dp;
+
+	if (!dev_has_ofnode(dev)) {
+		/* select isp1763 as the default device */
+		devflags = ISP1760_FLAG_ISP1763 | ISP1760_FLAG_BUS_WIDTH_16;
+		pr_err("isp1760: no platform data\n");
+		goto isp_setup;
+	}
+
+	dp = dev_ofnode(dev);
+
+	if (ofnode_device_is_compatible(dp, "nxp,usb-isp1761"))
+		devflags |= ISP1760_FLAG_ISP1761;
+
+	if (ofnode_device_is_compatible(dp, "nxp,usb-isp1763"))
+		devflags |= ISP1760_FLAG_ISP1763;
+
+	/*
+	 * Some systems wire up only 8 of 16 data lines or
+	 * 16 of the 32 data lines
+	 */
+	bus_width = ofnode_read_u32_default(dp, "bus-width", 16);
+	if (bus_width == 16)
+		devflags |= ISP1760_FLAG_BUS_WIDTH_16;
+	else if (bus_width == 8)
+		devflags |= ISP1760_FLAG_BUS_WIDTH_8;
+
+	if (usb_get_dr_mode(dev_ofnode(dev)) == USB_DR_MODE_PERIPHERAL)
+		devflags |= ISP1760_FLAG_PERIPHERAL_EN;
+
+	if (ofnode_read_bool(dp, "analog-oc"))
+		devflags |= ISP1760_FLAG_ANALOG_OC;
+
+	if (ofnode_read_bool(dp, "dack-polarity"))
+		devflags |= ISP1760_FLAG_DACK_POL_HIGH;
+
+	if (ofnode_read_bool(dp, "dreq-polarity"))
+		devflags |= ISP1760_FLAG_DREQ_POL_HIGH;
+
+isp_setup:
+	isp->devflags = devflags;
+	isp->dev = dev;
+
+	return 0;
+}
+
+static int isp1760_plat_probe(struct udevice *dev)
+{
+	struct isp1760_device *isp = dev_get_plat(dev);
+	struct resource mem_res;
+	struct resource irq_res;
+	int ret;
+
+	dev_read_resource(dev, 0, &mem_res);
+	dev_read_resource(dev, 1, &irq_res);
+
+	isp1760_init_kmem_once();
+
+	ret = isp1760_register(isp, &mem_res, irq_res.start, irq_res.flags);
+	if (ret < 0) {
+		isp1760_deinit_kmem_cache();
+		return ret;
+	}
+
+	return 0;
+}
+
+static int isp1760_plat_remove(struct udevice *dev)
+{
+	struct isp1760_device *isp = dev_get_plat(dev);
+
+	isp1760_deinit_kmem_cache();
+	isp1760_unregister(isp);
+
+	return 0;
+}
+
+static const struct udevice_id isp1760_ids[] = {
+	{ .compatible = "nxp,usb-isp1760", },
+	{ .compatible = "nxp,usb-isp1761", },
+	{ .compatible = "nxp,usb-isp1763", },
+	{ },
+};
+
+U_BOOT_DRIVER(isp1760) = {
+	.name		= "isp1760",
+	.id		= UCLASS_USB,
+	.of_match	= isp1760_ids,
+	.of_to_plat	= isp1760_of_to_plat,
+	.ops		= &isp1760_usb_ops,
+	.probe		= isp1760_plat_probe,
+	.remove		= isp1760_plat_remove,
+	.plat_auto	= sizeof(struct isp1760_device),
+	.priv_auto	= sizeof(struct isp1760_host_data),
+};