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-rw-r--r--drivers/usb/dwc3/core.c11
-rw-r--r--drivers/usb/dwc3/core.h2
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 0beaab932e7d..278cd1c33841 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1800,6 +1800,17 @@ static int dwc3_probe(struct platform_device *pdev)
dwc_res = *res;
dwc_res.start += DWC3_GLOBALS_REGS_START;
+ if (dev->of_node) {
+ struct device_node *parent = of_get_parent(dev->of_node);
+
+ if (of_device_is_compatible(parent, "realtek,rtd-dwc3")) {
+ dwc_res.start -= DWC3_GLOBALS_REGS_START;
+ dwc_res.start += DWC3_RTK_RTD_GLOBALS_REGS_START;
+ }
+
+ of_node_put(parent);
+ }
+
regs = devm_ioremap_resource(dev, &dwc_res);
if (IS_ERR(regs))
return PTR_ERR(regs);
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index d56457c02996..1968638f29ed 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -84,6 +84,8 @@
#define DWC3_OTG_REGS_START 0xcc00
#define DWC3_OTG_REGS_END 0xccff
+#define DWC3_RTK_RTD_GLOBALS_REGS_START 0x8100
+
/* Global Registers */
#define DWC3_GSBUSCFG0 0xc100
#define DWC3_GSBUSCFG1 0xc104