[PATCH] ARC: [plat-hsdk]: Add reset controller handle to manage USB reset

From: Eugeniy Paltsev
Date: Fri Feb 15 2019 - 11:17:45 EST


DW USB controller on HSDK hangs sometimes after SW reset, so
add reset handle to make possible to reset DW USB controller HW.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@xxxxxxxxxxxx>
---
arch/arc/boot/dts/hsdk.dts | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index 43f17b51ee89..f80fb9dc8653 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -200,6 +200,7 @@
compatible = "snps,hsdk-v1.0-ohci", "generic-ohci";
reg = <0x60000 0x100>;
interrupts = <15>;
+ resets = <&cgu_rst HSDK_USB_RESET>;
dma-coherent;
};

@@ -207,6 +208,7 @@
compatible = "snps,hsdk-v1.0-ehci", "generic-ehci";
reg = <0x40000 0x100>;
interrupts = <15>;
+ resets = <&cgu_rst HSDK_USB_RESET>;
dma-coherent;
};

--
2.14.5