linux-kernel - [PATCH] powerpc/fsl: Add cache properties for T2080/T2081

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Date:   Wed, 25 Mar 2020 10:36:12 +1300
From:   Chris Packham <chris.packham@...iedtelesis.co.nz>
To:     mpe@...erman.id.au, robh+dt@...nel.org, mark.rutland@....com,
        paulus@...ba.org, benh@...nel.crashing.org
Cc:     Hamish Martin <hamish.martin@...iedtelesis.co.nz>,
        devicetree@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org,
        Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH] powerpc/fsl: Add cache properties for T2080/T2081

Add the d-cache/i-cache properties for the T208x SoCs. The L1 cache on
these SoCs is 32KiB and is split into 64 byte blocks (lines).

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---
 arch/powerpc/boot/dts/fsl/t208xsi-pre.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/powerpc/boot/dts/fsl/t208xsi-pre.dtsi b/arch/powerpc/boot/dts/fsl/t208xsi-pre.dtsi
index 3f745de44284..2ad27e16ac16 100644
--- a/arch/powerpc/boot/dts/fsl/t208xsi-pre.dtsi
+++ b/arch/powerpc/boot/dts/fsl/t208xsi-pre.dtsi
@@ -81,6 +81,10 @@ cpus {
 		cpu0: PowerPC,e6500@0 {
 			device_type = "cpu";
 			reg = <0 1>;
+			d-cache-line-size = <64>;
+			i-cache-line-size = <64>;
+			d-cache-size = <32768>;
+			i-cache-size = <32768>;
 			clocks = <&clockgen 1 0>;
 			next-level-cache = <&L2_1>;
 			fsl,portid-mapping = <0x80000000>;
@@ -88,6 +92,10 @@ cpu0: PowerPC,e6500@0 {
 		cpu1: PowerPC,e6500@2 {
 			device_type = "cpu";
 			reg = <2 3>;
+			d-cache-line-size = <64>;
+			i-cache-line-size = <64>;
+			d-cache-size = <32768>;
+			i-cache-size = <32768>;
 			clocks = <&clockgen 1 0>;
 			next-level-cache = <&L2_1>;
 			fsl,portid-mapping = <0x80000000>;
@@ -95,6 +103,10 @@ cpu1: PowerPC,e6500@2 {
 		cpu2: PowerPC,e6500@4 {
 			device_type = "cpu";
 			reg = <4 5>;
+			d-cache-line-size = <64>;
+			i-cache-line-size = <64>;
+			d-cache-size = <32768>;
+			i-cache-size = <32768>;
 			clocks = <&clockgen 1 0>;
 			next-level-cache = <&L2_1>;
 			fsl,portid-mapping = <0x80000000>;
@@ -102,6 +114,10 @@ cpu2: PowerPC,e6500@4 {
 		cpu3: PowerPC,e6500@6 {
 			device_type = "cpu";
 			reg = <6 7>;
+			d-cache-line-size = <64>;
+			i-cache-line-size = <64>;
+			d-cache-size = <32768>;
+			i-cache-size = <32768>;
 			clocks = <&clockgen 1 0>;
 			next-level-cache = <&L2_1>;
 			fsl,portid-mapping = <0x80000000>;
-- 
2.25.1