[PATCH v2 1/2] dt-bindings: sifive: add cache-set value of 2048

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Fixes Running device tree schema validation error messages like
'... cache-sets:0:0: 1024 was expected'.

The existing bindings had a single enumerated value of 1024, which
trips up the dt-schema checks. The ISA permits any arbitrary power
of two for the cache-sets value, but we decided to add the single
additional value of 2048 because we couldn't spot an obvious way
to express the constraint in the schema.

Signed-off-by: Atul Khare <atulkhare@xxxxxxxxxxxx>
---
Changes since v1 [1]: Rebased on latest version
[1]: https://tinyurl.com/yvdvmsjd
---
---
 Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
index e2d330bd4608..309517b78e84 100644
--- a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
+++ b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
@@ -46,7 +46,9 @@ properties:
     const: 2

   cache-sets:
-    const: 1024
+    # Note: Technically this can be any power of 2, but we didn't see
an obvious way
+    # to express the constraint in Yaml
+    enum: [1024, 2048]

   cache-size:
     const: 2097152
--
2.34.1



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