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arm64: dts: Add L2 cache topology for APM X-Gene SoC 

In APM X-Gene SoC (both v1 and v2), each pair of processors
shares the same L2 cache. This patch adds l2-cache entries into
X-Gene SoC device tree to demonstrate this configuration.

Signed-off-by: Duc Dang <dhdang@apm.com>
hifive-unleashed-5.1
Duc Dang 2015-10-26 02:31:43 -07:00
parent 79402f35f0
commit 8000bc3fe9
2 changed files with 40 additions and 0 deletions
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20
arch/arm64/boot/dts/apm/apm-shadowcat.dtsi
View File

@ -25,6 +25,7 @@
reg = <0x0 0x000>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_0>;
};
cpu@001 {
device_type = "cpu";
@ -32,6 +33,7 @@
reg = <0x0 0x001>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_0>;
};
cpu@100 {
device_type = "cpu";
@ -39,6 +41,7 @@
reg = <0x0 0x100>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_1>;
};
cpu@101 {
device_type = "cpu";
@ -46,6 +49,7 @@
reg = <0x0 0x101>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_1>;
};
cpu@200 {
device_type = "cpu";
@ -53,6 +57,7 @@
reg = <0x0 0x200>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_2>;
};
cpu@201 {
device_type = "cpu";
@ -60,6 +65,7 @@
reg = <0x0 0x201>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_2>;
};
cpu@300 {
device_type = "cpu";
@ -67,6 +73,7 @@
reg = <0x0 0x300>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_3>;
};
cpu@301 {
device_type = "cpu";
@ -74,6 +81,19 @@
reg = <0x0 0x301>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_3>;
};
xgene_L2_0: l2-cache-0 {
compatible = "cache";
};
xgene_L2_1: l2-cache-1 {
compatible = "cache";
};
xgene_L2_2: l2-cache-2 {
compatible = "cache";
};
xgene_L2_3: l2-cache-3 {
compatible = "cache";
};
};

20
arch/arm64/boot/dts/apm/apm-storm.dtsi
View File

@ -25,6 +25,7 @@
reg = <0x0 0x000>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_0>;
};
cpu@001 {
device_type = "cpu";
@ -32,6 +33,7 @@
reg = <0x0 0x001>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_0>;
};
cpu@100 {
device_type = "cpu";
@ -39,6 +41,7 @@
reg = <0x0 0x100>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_1>;
};
cpu@101 {
device_type = "cpu";
@ -46,6 +49,7 @@
reg = <0x0 0x101>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_1>;
};
cpu@200 {
device_type = "cpu";
@ -53,6 +57,7 @@
reg = <0x0 0x200>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_2>;
};
cpu@201 {
device_type = "cpu";
@ -60,6 +65,7 @@
reg = <0x0 0x201>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_2>;
};
cpu@300 {
device_type = "cpu";
@ -67,6 +73,7 @@
reg = <0x0 0x300>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_3>;
};
cpu@301 {
device_type = "cpu";
@ -74,6 +81,19 @@
reg = <0x0 0x301>;
enable-method = "spin-table";
cpu-release-addr = <0x1 0x0000fff8>;
next-level-cache = <&xgene_L2_3>;
};
xgene_L2_0: l2-cache-0 {
compatible = "cache";
};
xgene_L2_1: l2-cache-1 {
compatible = "cache";
};
xgene_L2_2: l2-cache-2 {
compatible = "cache";
};
xgene_L2_3: l2-cache-3 {
compatible = "cache";
};
};