dt: amd-seattle: add a description of the CPUs and caches

Add a DT description of the CPU and cache hierarchy as found on
the AMD Seattle SOC. Given the tight coupling of the PMU with
the CPUs, move the PMU node into the cpu .dtsi file as well, and
add the missing affinity description.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 224 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi
new file mode 100644
index 000000000000..93688a0b6820
--- /dev/null
+++ b/arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi
@@ -0,0 +1,224 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+	cpus {
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&CPU0>;
+				};
+				core1 {
+					cpu = <&CPU1>;
+				};
+			};
+			cluster1 {
+				core0 {
+					cpu = <&CPU2>;
+				};
+				core1 {
+					cpu = <&CPU3>;
+				};
+			};
+			cluster2 {
+				core0 {
+					cpu = <&CPU4>;
+				};
+				core1 {
+					cpu = <&CPU5>;
+				};
+			};
+			cluster3 {
+				core0 {
+					cpu = <&CPU6>;
+				};
+				core1 {
+					cpu = <&CPU7>;
+				};
+			};
+		};
+
+		CPU0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x0>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_0>;
+
+		};
+
+		CPU1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x1>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_0>;
+		};
+
+		CPU2: cpu@100 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x100>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_1>;
+		};
+
+		CPU3: cpu@101 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x101>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_1>;
+		};
+
+		CPU4: cpu@200 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x200>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_2>;
+		};
+
+		CPU5: cpu@201 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x201>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_2>;
+		};
+
+		CPU6: cpu@300 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x300>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_3>;
+		};
+
+		CPU7: cpu@301 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x301>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_3>;
+		};
+	};
+
+	L2_0: l2-cache0 {
+		cache-size = <0x100000>;
+		cache-line-size = <64>;
+		cache-sets = <1024>;
+		cache-unified;
+		next-level-cache = <&L3>;
+	};
+
+	L2_1: l2-cache1 {
+		cache-size = <0x100000>;
+		cache-line-size = <64>;
+		cache-sets = <1024>;
+		cache-unified;
+		next-level-cache = <&L3>;
+	};
+
+	L2_2: l2-cache2 {
+		cache-size = <0x100000>;
+		cache-line-size = <64>;
+		cache-sets = <1024>;
+		cache-unified;
+		next-level-cache = <&L3>;
+	};
+
+	L2_3: l2-cache3 {
+		cache-size = <0x100000>;
+		cache-line-size = <64>;
+		cache-sets = <1024>;
+		cache-unified;
+		next-level-cache = <&L3>;
+	};
+
+	L3: l3-cache {
+		cache-level = <3>;
+		cache-size = <0x800000>;
+		cache-line-size = <64>;
+		cache-sets = <8192>;
+		cache-unified;
+	};
+
+	pmu {
+		compatible = "arm,cortex-a57-pmu";
+		interrupts = <0x0 0x7 0x4>,
+			     <0x0 0x8 0x4>,
+			     <0x0 0x9 0x4>,
+			     <0x0 0xa 0x4>,
+			     <0x0 0xb 0x4>,
+			     <0x0 0xc 0x4>,
+			     <0x0 0xd 0x4>,
+			     <0x0 0xe 0x4>;
+		interrupt-affinity = <&CPU0>,
+				     <&CPU1>,
+				     <&CPU2>,
+				     <&CPU3>,
+				     <&CPU4>,
+				     <&CPU5>,
+				     <&CPU6>,
+				     <&CPU7>;
+	};
+};