DW ethernet controller on HSDK hangs sometimes after SW reset, so
add reset node to make possible to reset DW ethernet controller HW.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@xxxxxxxxxxxx>
---
NOTE: this patch is effective only if patches to DW ethernet controller
and reset controller are applied (they are already in linux-next)
arch/arc/boot/dts/hsdk.dts | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index e096879..84052db 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -12,6 +12,7 @@
/dts-v1/;
#include <dt-bindings/net/ti-dp83867.h>
+#include <dt-bindings/reset/snps,hsdk-v1-reset.h>
/ {
model = "snps,hsdk";
@@ -102,6 +103,12 @@
ranges = <0x00000000 0xf0000000 0x10000000>;
+ cgu_rst: reset {
+ compatible = "snps,hsdk-v1.0-reset";
+ #reset-cells = <1>;
+ reg = <0x8A0 0x4>, <0xFF0 0x4>;
+ };
+
serial: serial@5000 {
compatible = "snps,dw-apb-uart";
reg = <0x5000 0x100>;
@@ -141,6 +148,8 @@
clocks = <&gmacclk>;
clock-names = "stmmaceth";
phy-handle = <&phy0>;
+ resets = <&cgu_rst HSDK_V1_ETH_RESET>;
+ reset-names = "stmmaceth";
mdio {
#address-cells = <1>;
--
2.9.3
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