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[Arista] Add emmc quirks in boot0 to improve reliability (#10013) (#13743)

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Why I did it
Fix some unreliability seen on emmc device with some AMD CPUs

How I did it
Added a kernel parameter to add quirks to
It depends on a sonic-linux-kernel change to work properly but will be a no-op without it.
The quirk added is SDHCI_QUIRK2_BROKEN_HS200 used to downgrade the link speed for the eMMC.

Co-authored-by: Samuel Angebault <staphylo@arista.com>
This commit is contained in:
mssonicbld 2023-02-11 01:28:24 +08:00 committed by GitHub
parent 4f362dcaa4
commit df0685fb19
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1 changed files with 3 additions and 1 deletions
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files/Aboot/boot0.j2
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@ -652,7 +652,6 @@ write_platform_specific_cmdline() {
fi
cmdline_add "varlog_size=$varlog_size"
cmdline_add "sonic.mode=$sonic_mode"
}
@ -670,6 +669,9 @@ write_image_specific_cmdline() {
# disable unified cgroup hierarchy to workaround dockerd limitation
cmdline_add systemd.unified_cgroup_hierarchy=0
# increase kernel log buffer size
cmdline_add log_buf_len=1M
# verbosity
cmdline_add quiet
# Start showing systemd information from the first failing unit if any.