From: Nishanth Menon <nm@ti.com>
To: Rob Herring <robh+dt@kernel.org>, Tero Kristo <kristo@kernel.org>,
Vignesh Raghavendra <vigneshr@ti.com>
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Nishanth Menon <nm@ti.com>, <linux-omap@vger.kernel.org>,
Peng Fan <peng.fan@nxp.com>
Subject: [PATCH] arm64: dts: ti: k3-j721e: Fix the L2 cache sets
Date: Fri, 12 Nov 2021 22:36:39 -0600 [thread overview]
Message-ID: <20211113043639.4413-1-nm@ti.com> (raw)
A72's L2 cache[1] on J721e[2] is 1MB. A53's L2 is fixed line length of
64 bytes and 16-way set-associative cache structure.
1MB of L2 / 64 (line length) = 16384 ways
16384 ways / 16 = 1024 sets
Fix the l2 cache-sets.
[1] https://developer.arm.com/documentation/100095/0003/Level-2-Memory-System/About-the-L2-memory-system
[2] http://www.ti.com/lit/pdf/spruil1
Fixes: 2d87061e70de ("arm64: dts: ti: Add Support for J721E SoC")
Reported-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
---
arch/arm64/boot/dts/ti/k3-j721e.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/ti/k3-j721e.dtsi b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
index 214359e7288b..0f674bc8f1c7 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
@@ -88,7 +88,7 @@ L2_0: l2-cache0 {
cache-level = <2>;
cache-size = <0x100000>;
cache-line-size = <64>;
- cache-sets = <2048>;
+ cache-sets = <1024>;
next-level-cache = <&msmc_l3>;
};
--
2.32.0
next reply other threads:[~2021-11-13 4:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-13 4:36 Nishanth Menon [this message]
2021-12-03 10:56 ` Pratyush Yadav
2021-12-06 13:13 ` Vignesh Raghavendra
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