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From: Michael Opdenacker <michael.opdenacker@rootcommit.com>
To: opensbi@lists.infradead.org
Cc: michael.opdenacker@rootcommit.com, Drew Fustini <drew@pdp7.com>,
	guoren@kernel.org, wefu@redhat.com, inochiama@gmail.com
Subject: TH1520: broken CPU count detection
Date: Tue, 15 Sep 2026 09:31:01 +0200	[thread overview]
Message-ID: <873b32a7-2e17-41dd-be7a-f97d5b768177@rootcommit.com> (raw)

Greetings,

For the Yocto meta-riscv layer, we're trying to replace the downstream 
opensbi (called opensbi-revyos) by mainline opensbi:
https://github.com/riscv/meta-riscv/pull/685/

The board boots fine, but unfortunately, only 1 CPU core is detected. 
This surfaces in the Linux kernel log:

[    0.089851] smp: Bringing up secondary CPUs ...
[   10.165542] CPU1 failed to report alive state
[   20.241632] CPU2 failed to report alive state
[   30.316980] CPU3 failed to report alive state

Any tips for solving this issue?
Thanks in advance
Cheers
Michael


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             reply	other threads:[~2026-09-15  7:32 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-15  7:31 Michael Opdenacker [this message]
2026-09-16 16:42 ` TH1520: broken CPU count detection Yao Zi
2026-09-17 10:54   ` Michael Opdenacker
2026-09-17 17:36     ` Yao Zi
     [not found]       ` <7d24d195-02e4-46d3-b0a3-4c48bf6a0d90@rootcommit.com>
2026-09-28  8:44         ` Michael Opdenacker

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