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arm64: Add L2 cache topology to ARM Ltd boards/models 

Commit 5d425c1865 ("arm64: kernel: add support for cpu cache
information") adds cacheinfo support for ARM64. Since there's no
architectural way of detecting the cpus that share particular cache,
device tree can be used and the core cacheinfo already supports the
same.

This patch adds the L2 cache topology on Juno board, FVP/RTSM and
foundation models.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Sudeep Holla 2015-01-21 12:02:30 +00:00 committed by Arnd Bergmann
parent c517d838eb
commit 7934d69abf
3 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm64/boot/dts/arm/foundation-v8.dts
View File

@ -34,6 +34,7 @@
reg = <0x0 0x0>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x8000fff8>;
next-level-cache = <&L2_0>;
};
cpu@1 {
device_type = "cpu";
@ -41,6 +42,7 @@
reg = <0x0 0x1>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x8000fff8>;
next-level-cache = <&L2_0>;
};
cpu@2 {
device_type = "cpu";
@ -48,6 +50,7 @@
reg = <0x0 0x2>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x8000fff8>;
next-level-cache = <&L2_0>;
};
cpu@3 {
device_type = "cpu";
@ -55,6 +58,11 @@
reg = <0x0 0x3>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x8000fff8>;
next-level-cache = <&L2_0>;
};
L2_0: l2-cache0 {
compatible = "cache";
};
};

14
arch/arm64/boot/dts/arm/juno.dts
View File

@ -39,6 +39,7 @@
reg = <0x0 0x0>;
device_type = "cpu";
enable-method = "psci";
next-level-cache = <&A57_L2>;
};
A57_1: cpu@1 {
@ -46,6 +47,7 @@
reg = <0x0 0x1>;
device_type = "cpu";
enable-method = "psci";
next-level-cache = <&A57_L2>;
};
A53_0: cpu@100 {
@ -53,6 +55,7 @@
reg = <0x0 0x100>;
device_type = "cpu";
enable-method = "psci";
next-level-cache = <&A53_L2>;
};
A53_1: cpu@101 {
@ -60,6 +63,7 @@
reg = <0x0 0x101>;
device_type = "cpu";
enable-method = "psci";
next-level-cache = <&A53_L2>;
};
A53_2: cpu@102 {
@ -67,6 +71,7 @@
reg = <0x0 0x102>;
device_type = "cpu";
enable-method = "psci";
next-level-cache = <&A53_L2>;
};
A53_3: cpu@103 {
@ -74,6 +79,15 @@
reg = <0x0 0x103>;
device_type = "cpu";
enable-method = "psci";
next-level-cache = <&A53_L2>;
};
A57_L2: l2-cache0 {
compatible = "cache";
};
A53_L2: l2-cache1 {
compatible = "cache";
};
};

8
arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
View File

@ -37,6 +37,7 @@
reg = <0x0 0x0>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x8000fff8>;
next-level-cache = <&L2_0>;
};
cpu@1 {
device_type = "cpu";
@ -44,6 +45,7 @@
reg = <0x0 0x1>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x8000fff8>;
next-level-cache = <&L2_0>;
};
cpu@2 {
device_type = "cpu";
@ -51,6 +53,7 @@
reg = <0x0 0x2>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x8000fff8>;
next-level-cache = <&L2_0>;
};
cpu@3 {
device_type = "cpu";
@ -58,6 +61,11 @@
reg = <0x0 0x3>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x8000fff8>;
next-level-cache = <&L2_0>;
};
L2_0: l2-cache0 {
compatible = "cache";
};
};