[U-Boot] [PATCH] drivers: usb: dwc3: setup phy before dwc3 core soft reset

Michal Simek michal.simek at xilinx.com
Wed Sep 11 14:45:40 UTC 2019


From: T Karthik Reddy <t.karthik.reddy at xilinx.com>

Phy setup should be done before dwc3 soft core reset as it is done
in linux & this fixes unreliable detection of usb cable on host side.

Signed-off-by: T Karthik Reddy <t.karthik.reddy at xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 drivers/usb/dwc3/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 56e2a046bf06..2498f0efb1a4 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -440,6 +440,8 @@ static int dwc3_core_init(struct dwc3 *dwc)
 		goto err0;
 	}
 
+	dwc3_phy_setup(dwc);
+
 	ret = dwc3_core_soft_reset(dwc);
 	if (ret)
 		goto err0;
@@ -514,8 +516,6 @@ static int dwc3_core_init(struct dwc3 *dwc)
 
 	dwc3_writel(dwc->regs, DWC3_GCTL, reg);
 
-	dwc3_phy_setup(dwc);
-
 	ret = dwc3_alloc_scratch_buffers(dwc);
 	if (ret)
 		goto err0;
-- 
2.17.1



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