[PATCH v2 02/13] dt-bindings: cpus: add a thead vlen register length property

[Conor Dooley]

On Mon, Jun 10, 2024 at 03:56:39PM -0700, Charlie Jenkins wrote:
> Add a property analogous to the vlenb CSR so that software can detect
> the vector length of each CPU prior to it being brought online.
> Currently software has to assume that the vector length read from the
> boot CPU applies to all possible CPUs. On T-Head CPUs implementing
> pre-ratification vector, reading the th.vlenb CSR may produce an illegal
> instruction trap, so this property is required on such systems.
> 
> Signed-off-by: Charlie Jenkins <charlie at rivosinc.com>

Reviewed-by: Conor Dooley <conor.dooley at microchip.com>
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