From: Patrice Chotard <patrice.chot...@st.com>
DWC3 dual role mode is selected using DT "dr_mode"
property. If not found, DWC3 controller is configured
in HOST mode by default
Signed-off-by: Patrice Chotard <patrice.chot...@st.com>
Reviewed-by: Marek Vasut <ma...@denx.de>
Reviewed-by: Simon Glass <s...@chromium.org>
---
v5: _ none
v4: _ none
v3: _ none
v2: _ none
drivers/usb/host/xhci-dwc3.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c
index 8c90836..7c32722 100644
--- a/drivers/usb/host/xhci-dwc3.c
+++ b/drivers/usb/host/xhci-dwc3.c
@@ -15,6 +15,7 @@
#include "xhci.h"
#include <asm/io.h>
#include <linux/usb/dwc3.h>
+#include <linux/usb/otg.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -114,6 +115,7 @@ static int xhci_dwc3_probe(struct udevice *dev)
struct xhci_hcor *hcor;
struct xhci_hccr *hccr;
struct dwc3 *dwc3_reg;
+ enum usb_dr_mode dr_mode;
hccr = (struct xhci_hccr *)devfdt_get_addr(dev);
hcor = (struct xhci_hcor *)((phys_addr_t)hccr +
@@ -123,6 +125,13 @@ static int xhci_dwc3_probe(struct udevice *dev)
dwc3_core_init(dwc3_reg);
+ dr_mode = usb_get_dr_mode(dev_of_offset(dev));
+ if (dr_mode == USB_DR_MODE_UNKNOWN)
+ /* by default set dual role mode to HOST */
+ dr_mode = USB_DR_MODE_HOST;
+
+ dwc3_set_mode(dwc3_reg, dr_mode);
+
return xhci_register(dev, hccr, hcor);
}
--
1.9.1
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