linux-kernel - [PATCH v8 10/13] dt-bindings: mips: cpu: Add property for broken HCI information

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Message-Id: <20241028175935.51250-11-arikalo@gmail.com>
Date: Mon, 28 Oct 2024 18:59:32 +0100
From: Aleksandar Rikalo <arikalo@...il.com>
To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>,
	Gregory CLEMENT <gregory.clement@...tlin.com>,
	Theo Lebrun <theo.lebrun@...tlin.com>,
	Arnd Bergmann <arnd@...db.de>,
	devicetree@...r.kernel.org,
	Djordje Todorovic <djordje.todorovic@...cgroup.com>,
	Chao-ying Fu <cfu@...ecomp.com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Greg Ungerer <gerg@...nel.org>,
	Hauke Mehrtens <hauke@...ke-m.de>,
	Ilya Lipnitskiy <ilya.lipnitskiy@...il.com>,
	Jiaxun Yang <jiaxun.yang@...goat.com>,
	linux-kernel@...r.kernel.org,
	linux-mips@...r.kernel.org,
	Marc Zyngier <maz@...nel.org>,
	Paul Burton <paulburton@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Serge Semin <fancer.lancer@...il.com>,
	Tiezhu Yang <yangtiezhu@...ngson.cn>,
	Aleksandar Rikalo <arikalo@...il.com>
Subject: [PATCH v8 10/13] dt-bindings: mips: cpu: Add property for broken HCI information

From: Gregory CLEMENT <gregory.clement@...tlin.com>

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>
Signed-off-by: Aleksandar Rikalo <arikalo@...il.com>
Tested-by: Gregory CLEMENT <gregory.clement@...tlin.com>
---
 Documentation/devicetree/bindings/mips/cpus.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/mips/cpus.yaml b/Documentation/devicetree/bindings/mips/cpus.yaml
index a85137add668..57e93c07ab1b 100644
--- a/Documentation/devicetree/bindings/mips/cpus.yaml
+++ b/Documentation/devicetree/bindings/mips/cpus.yaml
@@ -47,6 +47,12 @@ properties:
   clocks:
     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.
+
   device_type: true
 
 allOf:
-- 
2.25.1