[PATCH 01/10] arm64: dts: allwinner: a64: Add L2 cache nodes
From: andre.przywara@arm.com (Andre Przywara)
Date: 2018-07-06 08:52:01
Subsystem:
arm/allwinner sunxi soc support, the rest · Maintainers:
Chen-Yu Tsai, Jernej Skrabec, Samuel Holland, Linus Torvalds
Current kernels complain when booting on an A64 Soc: .... [ 1.904297] cacheinfo: Unable to detect cache hierarchy for CPU 0 .... Not a real biggie on this flat topology, but also easy enough to fix. Add the L2 cache node and let each CPU point to it. Signed-off-by: Andre Przywara <andre.przywara@arm.com> --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 840753432ea5..53af7e7ab62c 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi@@ -88,6 +88,7 @@ device_type = "cpu"; reg = <0>; enable-method = "psci"; + next-level-cache = <&L2>; }; cpu1: cpu at 1 {
@@ -95,6 +96,7 @@ device_type = "cpu"; reg = <1>; enable-method = "psci"; + next-level-cache = <&L2>; }; cpu2: cpu at 2 {
@@ -102,6 +104,7 @@ device_type = "cpu"; reg = <2>; enable-method = "psci"; + next-level-cache = <&L2>; }; cpu3: cpu at 3 {
@@ -109,6 +112,12 @@ device_type = "cpu"; reg = <3>; enable-method = "psci"; + next-level-cache = <&L2>; + }; + + L2: l2-cache { + compatible = "cache"; + cache-level = <2>; }; };
--
2.14.4