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Disable Ethernet in U-Boot if ODROID-M1 (#3122)

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It seems that the Ethernet initialization in U-Boot causes significant
packet drops in Linux on some board. On a ODROID-M1 with 8GB of RAM, a
packet loss rate of ~20% has been observed. From the user point of view
it feels like a massive slow down (SSH feels very slow, Home Assistant
loads very slow or not at all).

Disabling the Ethernet controller driver avoids initialization in U-Boot
and makes Ethernet work correctly again in Linux.

While at it, drop the previously board specific configs. They haven't
been used and the board seemed fine without them.
This commit is contained in:
Stefan Agner
2024-01-30 10:12:48 +01:00
committed by GitHub
parent 9102f06fba
commit bd3cae5300
2 changed files with 3 additions and 6 deletions
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buildroot-external/configs/odroid_m1_defconfig
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@@ -137,7 +137,7 @@ BR2_TARGET_UBOOT_CUSTOM_GIT=y
BR2_TARGET_UBOOT_CUSTOM_REPO_URL="https://github.com/u-boot/u-boot.git"
BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION="v2024.01"
BR2_TARGET_UBOOT_BOARD_DEFCONFIG="odroid-m1-rk3568"
BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_HASSOS_PATH)/bootloader/uboot.config"
BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_HASSOS_PATH)/bootloader/uboot.config $(BR2_EXTERNAL_HASSOS_PATH)/board/hardkernel/odroid-m1/uboot.config"
BR2_TARGET_UBOOT_NEEDS_PYLIBFDT=y
BR2_TARGET_UBOOT_NEEDS_PYELFTOOLS=y
BR2_TARGET_UBOOT_NEEDS_ATF_BL31=y