1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/board.c b/arch/arm/mach-rockchip/board.c
index b07e0738ea..f662b26938 100644
--- a/arch/arm/mach-rockchip/board.c
+++ b/arch/arm/mach-rockchip/board.c
@@ -85,6 +85,78 @@ void lowlevel_init(void)
 {
 }
 
+#if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
+#include <usb.h>
+#include <usb/dwc2_udc.h>
+
+static struct dwc2_plat_otg_data rk3288_otg_data = {
+	.rx_fifo_sz	= 512,
+	.np_tx_fifo_sz	= 16,
+	.tx_fifo_sz	= 128,
+};
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+	int node, phy_node;
+	const char *mode;
+	bool matched = false;
+	const void *blob = gd->fdt_blob;
+	u32 grf_phy_offset;
+
+	/* find the usb_otg node */
+	node = fdt_node_offset_by_compatible(blob, -1,
+					"rockchip,rk3288-usb");
+
+	while (node > 0) {
+		mode = fdt_getprop(blob, node, "dr_mode", NULL);
+		if (mode && strcmp(mode, "otg") == 0) {
+			matched = true;
+			break;
+		}
+
+		node = fdt_node_offset_by_compatible(blob, node,
+					"rockchip,rk3288-usb");
+	}
+	if (!matched) {
+		debug("Not found usb_otg device\n");
+		return -ENODEV;
+	}
+	rk3288_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
+
+	node = fdtdec_lookup_phandle(blob, node, "phys");
+	if (node <= 0) {
+		debug("Not found usb phy device\n");
+		return -ENODEV;
+	}
+
+	phy_node = fdt_parent_offset(blob, node);
+	if (phy_node <= 0) {
+		debug("Not found usb phy device\n");
+		return -ENODEV;
+	}
+
+	rk3288_otg_data.phy_of_node = phy_node;
+	grf_phy_offset = fdtdec_get_addr(blob, node, "reg");
+
+	/* find the grf node */
+	node = fdt_node_offset_by_compatible(blob, -1,
+					"rockchip,rk3288-grf");
+	if (node <= 0) {
+		debug("Not found grf device\n");
+		return -ENODEV;
+	}
+	rk3288_otg_data.regs_phy = grf_phy_offset +
+				fdtdec_get_addr(blob, node, "reg");
+
+	return dwc2_udc_probe(&rk3288_otg_data);
+}
+
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+	return 0;
+}
+#endif
+
 static int do_clock(cmd_tbl_t *cmdtp, int flag, int argc,
 		       char * const argv[])
 {