diff mbox series

[U-Boot,v2,02/18] rockchip: dts: rk3399-evb: Change the tx/rx delay value for transmission quality

Message ID 1510217699-78401-3-git-send-email-david.wu@rock-chips.com
State Changes Requested
Delegated to: Philipp Tomsich
Headers show
Series Add gmac support for rk3399-evb rv1108-evb rk3328-evb and rk3229-evb | expand

Commit Message

David Wu Nov. 9, 2017, 8:54 a.m. UTC 
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Content preview:  Give the mac controller the correct tx-delay and rx-delay
  value for the rgmii mode transmission. If they are not matched, there would
   be Ethernet packets lost, the net feature may not work. Signed-off-by: David
   Wu <david.wu@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
   Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> ---
  [...] 

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Give the mac controller the correct tx-delay and rx-delay value
for the rgmii mode transmission. If they are not matched, there
would be Ethernet packets lost, the net feature may not work.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
---

Changes in v2: None

 arch/arm/dts/rk3399-evb.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm/dts/rk3399-evb.dts b/arch/arm/dts/rk3399-evb.dts
index 0e5d8d7..ed5ef88 100644
--- a/arch/arm/dts/rk3399-evb.dts
+++ b/arch/arm/dts/rk3399-evb.dts
@@ -276,7 +276,7 @@ 
 	assigned-clock-parents = <&clkin_gmac>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&rgmii_pins>;
-	tx_delay = <0x10>;
-	rx_delay = <0x10>;
+	tx_delay = <0x28>;
+	rx_delay = <0x11>;
 	status = "okay";
 };