linux-kernel - [PATCH 5.16 0221/1039] arm64: dts: ti: k3-j7200: Correct the d-cache-sets info

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Message-Id: <20220124184132.769976712@linuxfoundation.org>
Date:   Mon, 24 Jan 2022 19:33:30 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Peng Fan <peng.fan@....com>,
        Nishanth Menon <nm@...com>, Pratyush Yadav <p.yadav@...com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.16 0221/1039] arm64: dts: ti: k3-j7200: Correct the d-cache-sets info

From: Nishanth Menon <nm@...com>

[ Upstream commit a172c86931709d6663318609d71a811333bdf4b0 ]

A72 Cluster (chapter 1.3.1 [1]) has 48KB Icache, 32KB Dcache and 1MB L2 Cache
 - ICache is 3-way set-associative
 - Dcache is 2-way set-associative
 - Line size are 64bytes

32KB (Dcache)/64 (fixed line length of 64 bytes) = 512 ways
512 ways / 2 (Dcache is 2-way per set) = 256 sets.

So, correct the d-cache-sets info.

[1] https://www.ti.com/lit/pdf/spruiu1

Fixes: d361ed88455f ("arm64: dts: ti: Add support for J7200 SoC")
Reported-by: Peng Fan <peng.fan@....com>
Signed-off-by: Nishanth Menon <nm@...com>
Reviewed-by: Pratyush Yadav <p.yadav@...com>
Reviewed-by: Kishon Vijay Abraham I <kishon@...com>
Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
Link: https://lore.kernel.org/r/20211113042640.30955-1-nm@ti.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/ti/k3-j7200.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200.dtsi b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
index a99a4d305b7ec..64fef4e67d76a 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
@@ -62,7 +62,7 @@
 			i-cache-sets = <256>;
 			d-cache-size = <0x8000>;
 			d-cache-line-size = <64>;
-			d-cache-sets = <128>;
+			d-cache-sets = <256>;
 			next-level-cache = <&L2_0>;
 		};
 
@@ -76,7 +76,7 @@
 			i-cache-sets = <256>;
 			d-cache-size = <0x8000>;
 			d-cache-line-size = <64>;
-			d-cache-sets = <128>;
+			d-cache-sets = <256>;
 			next-level-cache = <&L2_0>;
 		};
 	};
-- 
2.34.1