CAT874_GbE_rx_error †

LAN (GigaBitEther) RX error について.

• EK874 Rev.C mac Address 00:03:82:FE:20:E2 以降 and later
• EK874 Rev.E mac Address 00:03:82:FE:22:37 以降 and later

上記個体において、Renesas BSP 3.0.1 を使用するとGigaBitEtherの受信がエラーになる現象が起きます。
In the above-mentioned unit, when using Renesas BSP 3.0.1, an error occurs in receiving GigaBitEther.

CAT874_yocto_v3.0.0 問題なし No problem.
CAT874_yocto_v3.0.1 GbE Rx Error.

BSP 3.0.1 を使用するときは device_tree に以下のパッチを適用してください。
When using BSP 3.0.1, apply the following patch to device_tree.

0001-Revert-arm64-dts-renesas-cat875-Add-EtherAVB-interna.patch

diff --git a/arch/arm64/boot/dts/renesas/cat875.dtsi b/arch/arm64/boot/dts/renesas/cat875.dtsi
index e507d651ef0a..8ce15d7a7f3a 100644
--- a/arch/arm64/boot/dts/renesas/cat875.dtsi
+++ b/arch/arm64/boot/dts/renesas/cat875.dtsi
@@ -19,8 +19,6 @@ &avb {
 	renesas,no-ether-link;
 	phy-handle = <&phy0>;
 	phy-mode = "rgmii-id";
-	rx-internal-delay-ps = <1800>;
-	tx-internal-delay-ps = <2000>;
 	status = "okay";
 
 	phy0: ethernet-phy@0 {

yocto_source_dir: build/tmp/work-shared/ek874/kernel-source

• 変更済み

cat875.dtsi
dtbs.zip

Image-r8a774c0-ek874-idk-2121wr.dtb
Image-r8a774c0-ek874-mipi-2.1.dtb
Image-r8a774c0-ek874-mipi-2.4.dtb
Image-r8a774c0-ek874-revc-idk-2121wr.dtb
Image-r8a774c0-ek874-revc-mipi-2.1.dtb
Image-r8a774c0-ek874-revc-mipi-2.4.dtb
Image-r8a774c0-ek874-revc.dtb
Image-r8a774c0-ek874.dtb

この問題は Renesas BPS 3.0.3 で修正される見込みです。
This issue will be fixed in bps3.0.3.

関連 †

• CAT874

自動リンク

• CAT874
• CAT874_yocto_v3.0.0
• CAT874_yocto_v3.0.1