linux-kernel - [PATCH 2/5] dt-bindings: mips: mips-cm: Add property for broken HCI information

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Message-Id: <20241115-cluster-hci-broken-v1-2-00636800611d@bootlin.com>
Date: Fri, 15 Nov 2024 16:29:55 +0100
From: Gregory CLEMENT <gregory.clement@...tlin.com>
To: Aleksandar Rikalo <arikalo@...il.com>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
 Jiaxun Yang <jiaxun.yang@...goat.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>, 
 Théo Lebrun <theo.lebrun@...tlin.com>, 
 Tawfik Bayouk <tawfik.bayouk@...ileye.com>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, linux-mips@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Gregory CLEMENT <gregory.clement@...tlin.com>
Subject: [PATCH 2/5] dt-bindings: mips: mips-cm: Add property for broken
 HCI information

Some CM3.5 reports show that Hardware Cache Initialization is
complete, but in reality it's not the case. They also incorrectly
indicate that Hardware Cache Initialization is supported. This
optional property allows warning about this broken feature that cannot
be detected at runtime.

Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
---
 Documentation/devicetree/bindings/mips/mti,mips-cm.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/mips/mti,mips-cm.yaml b/Documentation/devicetree/bindings/mips/mti,mips-cm.yaml
index 03a5ba5624a429c428ee2afca73b3e29127e02f9..eab31a1022c8cbdee86081110516579ebe99e640 100644
--- a/Documentation/devicetree/bindings/mips/mti,mips-cm.yaml
+++ b/Documentation/devicetree/bindings/mips/mti,mips-cm.yaml
@@ -23,6 +23,12 @@ properties:
       block. It is conventionally decided by the system integrator.
     maxItems: 1
 
+  cm3-l2-config-hci-broken:
+    type: boolean
+    description:
+      If present, indicates that the HCI (Hardware Cache Initialization)
+      information for the L2 cache in multi-cluster configuration is broken.
+
 required:
   - compatible
 

-- 
2.45.2