From: Mihai Sain <mihai.sain@microchip.com>
Date: Wed, 25 Jun 2025 06:49:34 +0000 (+0300)
Subject: ARM: dts: microchip: sama5d4: Update the cache configuration for CPU
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e2e0ed390cc3c074817b2026a59da008b6cd2a6;p=thirdparty%2Flinux.git

ARM: dts: microchip: sama5d4: Update the cache configuration for CPU

Add the memory size properties for L1 and L2 according with block
diagram from datasheet:

- L1 cache configuration with 32 KB for both data and instruction cache.
- L2 cache configuration with 128 KB unified cache.

[root@sama5d4 ~]$ lscpu
Architecture:             armv7l
  Byte Order:             Little Endian
CPU(s):                   1
  On-line CPU(s) list:    0
Vendor ID:                ARM
  Model name:             Cortex-A5
Caches (sum of all):
  L1d:                    32 KiB (1 instance)
  L1i:                    32 KiB (1 instance)
  L2:                     128 KiB (1 instance)

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Link: https://lore.kernel.org/r/20250625064934.4828-4-mihai.sain@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
---

diff --git a/arch/arm/boot/dts/microchip/sama5d4.dtsi b/arch/arm/boot/dts/microchip/sama5d4.dtsi
index 59a7d557c7cb2..ec1d68c640dea 100644
--- a/arch/arm/boot/dts/microchip/sama5d4.dtsi
+++ b/arch/arm/boot/dts/microchip/sama5d4.dtsi
@@ -50,6 +50,8 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a5";
 			reg = <0>;
+			d-cache-size = <0x8000>;	// L1, 32 KB
+			i-cache-size = <0x8000>;	// L1, 32 KB
 			next-level-cache = <&L2>;
 		};
 	};
@@ -143,6 +145,7 @@
 			interrupts = <67 IRQ_TYPE_LEVEL_HIGH 4>;
 			cache-unified;
 			cache-level = <2>;
+			cache-size = <0x20000>;		// L2, 128 KB
 		};
 
 		ebi: ebi@10000000 {