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path: root/drivers/usb/dwc3/core.c
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Diffstat (limited to 'drivers/usb/dwc3/core.c')
-rw-r--r--drivers/usb/dwc3/core.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 4787d66..736f79a 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -495,6 +495,15 @@ static int dwc3_probe(struct platform_device *pdev)
dwc3_writel(dwc->regs, DWC3_GFLADJ, GFLADJ_30MHZ_REG_SEL |
GFLADJ_30MHZ(GFLADJ_30MHZ_DEFAULT));
+ dwc3_writel(dwc->regs, DWC3_GSBUSCFG0,
+ (dwc3_readl(dwc->regs, DWC3_GSBUSCFG0) & ~0xff) | 0xf);
+ dwc3_writel(dwc->regs, DWC3_GSBUSCFG1,
+ dwc3_readl(dwc->regs, DWC3_GSBUSCFG1) | 0xf00);
+
+ /* Enable Snooping */
+ dwc3_writel(dwc->regs, DWC3_GSBUSCFG0,
+ dwc3_readl(dwc->regs, DWC3_GSBUSCFG0) | 0x22220000);
+
if (IS_ENABLED(CONFIG_USB_DWC3_HOST))
dwc->dr_mode = USB_DR_MODE_HOST;
else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET))