[PATCH] arm64: dts: imx93: add cache info

[PATCH] arm64: dts: imx93: add cache info

[Peng Fan (OSS)]

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

Re: [PATCH] arm64: dts: imx93: add cache info

[Stefan Wahren]

Am 01.08.24 um 10:11 schrieb Peng Fan (OSS):
> 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>
> ---
>

Reviewed-by: Stefan Wahren <wahrenst@gmx.net>

Thanks

Re: [PATCH] arm64: dts: imx93: add cache info

[Shawn Guo]

On Thu, Aug 01, 2024 at 04:11:11PM +0800, Peng Fan (OSS) wrote:
> 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>

Applied, thanks!