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* [PATCH] arm64: dts: imx93: add cache info
@ 2024-08-01  8:11 Peng Fan (OSS)
  2024-08-02 19:25 ` Stefan Wahren
  2024-08-13  3:21 ` Shawn Guo
  0 siblings, 2 replies; 3+ messages in thread
From: Peng Fan (OSS) @ 2024-08-01  8:11 UTC (permalink / raw)
  To: robh, krzk+dt, conor+dt, shawnguo, s.hauer
  Cc: kernel, festevam, devicetree, linux-kernel, imx, linux-arm-kernel,
	wahrenst, Peng Fan

From: Peng Fan <peng.fan@nxp.com>

i.MX93 features two Cortex-A55 cores with per core L1 Instruction
cache size 32KB, L1 data cache size 32KB, per core L2 cache 64KB, and
unified 256KB L3 cache.

Add the cache info to remove cacheinfo warnings at boot:
"cacheinfo: Unable to detect cache hierarchy for CPU 0"

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx93.dtsi | 42 ++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi
index 4a3f42355cb8..8f17b1fbfba0 100644
--- a/arch/arm64/boot/dts/freescale/imx93.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93.dtsi
@@ -69,6 +69,13 @@ A55_0: cpu@0 {
 			enable-method = "psci";
 			#cooling-cells = <2>;
 			cpu-idle-states = <&cpu_pd_wait>;
+			i-cache-size = <32768>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <128>;
+			d-cache-size = <32768>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>;
+			next-level-cache = <&l2_cache_l0>;
 		};
 
 		A55_1: cpu@100 {
@@ -78,8 +85,43 @@ A55_1: cpu@100 {
 			enable-method = "psci";
 			#cooling-cells = <2>;
 			cpu-idle-states = <&cpu_pd_wait>;
+			i-cache-size = <32768>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <128>;
+			d-cache-size = <32768>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <128>;
+			next-level-cache = <&l2_cache_l1>;
 		};
 
+		l2_cache_l0: l2-cache-l0 {
+			compatible = "cache";
+			cache-size = <65536>;
+			cache-line-size = <64>;
+			cache-sets = <256>;
+			cache-level = <2>;
+			cache-unified;
+			next-level-cache = <&l3_cache>;
+		};
+
+		l2_cache_l1: l2-cache-l1 {
+			compatible = "cache";
+			cache-size = <65536>;
+			cache-line-size = <64>;
+			cache-sets = <256>;
+			cache-level = <2>;
+			cache-unified;
+			next-level-cache = <&l3_cache>;
+		};
+
+		l3_cache: l3-cache {
+			compatible = "cache";
+			cache-size = <262144>;
+			cache-line-size = <64>;
+			cache-sets = <256>;
+			cache-level = <3>;
+			cache-unified;
+		};
 	};
 
 	osc_32k: clock-osc-32k {
-- 
2.37.1



^ permalink raw reply related	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-08-13  3:22 UTC | newest]

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2024-08-01  8:11 [PATCH] arm64: dts: imx93: add cache info Peng Fan (OSS)
2024-08-02 19:25 ` Stefan Wahren
2024-08-13  3:21 ` Shawn Guo

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