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[3/3] ARM: dts: meson8m2: mxiii-plus: use the same RGMII TX delay as u-boot

Message ID 20191225005655.1502037-4-martin.blumenstingl@googlemail.com (mailing list archive)
State New, archived
Headers show
Series Meson8b/8m2: Ethernet RGMII TX delay fixes | expand

Commit Message

Martin Blumenstingl Dec. 25, 2019, 12:56 a.m. UTC
Due to a bug in the MPLL2 clock setup (which is used as input for the
RGMII TX clock) a TX delay of 2ns did not work previously. With a TX
delay of 4ns Ethernet worked enough to get an IP via DHCP but there was
still high packet loss when transmitting data.

Update the TX delay to 2ns - which is the same value that u-boot and the
vendor kernel use - to fix the packet loss when transmitting data.

Fixes: 35ee52bea66c74 ("ARM: dts: meson8m2: add support for the Tronsmart MXIII Plus")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
 arch/arm/boot/dts/meson8m2-mxiii-plus.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series


diff --git a/arch/arm/boot/dts/meson8m2-mxiii-plus.dts b/arch/arm/boot/dts/meson8m2-mxiii-plus.dts
index d54477b1001c..fd94b5cbd845 100644
--- a/arch/arm/boot/dts/meson8m2-mxiii-plus.dts
+++ b/arch/arm/boot/dts/meson8m2-mxiii-plus.dts
@@ -71,7 +71,7 @@  &ethmac {
 	phy-handle = <&eth_phy0>;
 	phy-mode = "rgmii";
-	amlogic,tx-delay-ns = <4>;
+	amlogic,tx-delay-ns = <2>;
 	mdio {
 		compatible = "snps,dwmac-mdio";