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author | Conor Dooley <conor.dooley@microchip.com> | 2022-08-03 19:54:00 +0100 |
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committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-08-11 14:00:11 -0700 |
commit | b60cf8e59e61133b6c9514ff8d8c8d7049d040ef (patch) | |
tree | b86daa312e39a8980da999b4d23cc72de78f4390 /Documentation/devicetree/changesets.rst | |
parent | 87df2b5cbc84554df49ccfd9170103729d5a0ab4 (diff) | |
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dt-bindings: riscv: fix SiFive l2-cache's cache-sets
Fix device tree schema validation error messages for the SiFive
Unmatched: ' cache-sets:0:0: 1024 was expected'.
The existing bindings allow for just 1024 cache-sets but the fu740 on
Unmatched the has 2048 cache-sets. The ISA itself permits any arbitrary
power of two, however this is not supported by dt-schema. The RTL for
the IP, to which the number of cache-sets is a tunable parameter, has
been released publicly so speculatively adding a small number of
"reasonable" values seems unwise also.
Instead, as the binding only supports two distinct controllers: add 2048
and explicitly lock it to the fu740's l2 cache while limiting 1024 to
the l2 cache on the fu540.
Fixes: af951c3a113b ("dt-bindings: riscv: Update l2 cache DT documentation to add support for SiFive FU740")
Reported-by: Atul Khare <atulkhare@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220803185359.942928-1-mail@conchuod.ie
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'Documentation/devicetree/changesets.rst')
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