Whenever Suspend PHY bit is set on AM437x devices,
USB will not work due to Set EP Configuration command
always failing.
This was only found after a recent commit 2164a47 (usb:
dwc3: set SUSPHY bit for all cores, which will be merged
for v3.19) added a missing *required* step to dwc3
initialization. Synopsys Databook requires that we enable
Suspend PHY bit after initialization but that, unfortunately,
breaks AM437x.
Signed-off-by: Felipe Balbi <ba...@ti.com>
---
arch/arm/boot/dts/am4372.dtsi | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 46660ff..e19068d 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -817,6 +817,8 @@
maximum-speed = "high-speed";
dr_mode = "otg";
status = "disabled";
+ snps,dis_u3_susphy_quirk;
+ snps,dis_u2_susphy_quirk;
};
};
@@ -839,6 +841,8 @@
maximum-speed = "high-speed";
dr_mode = "otg";
status = "disabled";
+ snps,dis_u3_susphy_quirk;
+ snps,dis_u2_susphy_quirk;
};
};
--
2.1.0.GIT
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