Re: dwc3 gadget fails on dra7-evm

[Felipe Balbi]

Hi,

On Wed, Jan 14, 2015 at 05:44:08PM +0200, Roger Quadros wrote:
> In 3.19-rc4 on dra7-evm or dra72-evm
> 
> modprobe g_zero
> [   34.680683] zero gadget: Gadget Zero, version: Cinco de Mayo 2008
> [   34.687074] zero gadget: zero ready
> [   34.694133] dwc3 48890000.usb: failed to enable ep0out
> [   34.701600] zero 48890000.usb: failed to start zero: -110
> ERROR: could not insert 'g_zero': Connection timed out
> 
> my u-boot version is v2015.01

hmm... it could be that DRA7x also needs the suspend phy quirk. Can you
try this ?

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 22771bc1643a..63f8b007bdc5 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -1257,6 +1257,8 @@
                                tx-fifo-resize;
                                maximum-speed = "super-speed";
                                dr_mode = "otg";
+                               snps,dis_u3_susphy_quirk;
+                               snps,dis_u2_susphy_quirk;
                        };
                };
 
@@ -1278,6 +1280,8 @@
                                tx-fifo-resize;
                                maximum-speed = "high-speed";
                                dr_mode = "otg";
+                               snps,dis_u3_susphy_quirk;
+                               snps,dis_u2_susphy_quirk;
                        };
                };
 
@@ -1299,6 +1303,8 @@
                                tx-fifo-resize;
                                maximum-speed = "high-speed";
                                dr_mode = "otg";
+                               snps,dis_u3_susphy_quirk;
+                               snps,dis_u2_susphy_quirk;
                        };
                };
 

Weird, I remeber testing on X15 and not needing this quirk :-s

-- 
balbi

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