From 576e3cc700c598487fed741ee85103373a3f69d6 Mon Sep 17 00:00:00 2001 From: Patrice Chotard Date: Tue, 18 Jul 2017 11:38:41 +0200 Subject: [PATCH] usb: host: xhci-dwc3: Add dual role mode support from DT 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 Reviewed-by: Marek Vasut Reviewed-by: Simon Glass --- 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 fb106f3..93ae986 100644 --- a/drivers/usb/host/xhci-dwc3.c +++ b/drivers/usb/host/xhci-dwc3.c @@ -15,6 +15,7 @@ #include "xhci.h" #include #include +#include DECLARE_GLOBAL_DATA_PTR; @@ -110,6 +111,7 @@ 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 + @@ -119,6 +121,13 @@ 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); } -- 2.7.4