diff mbox series

[v3,4/4] arm64: dts: allwinner: a523: add CPU clocks

Message ID 20260925225112.14081-5-andre.przywara@arm.com (mailing list archive)
State New
Headers
Series arm64: allwinner: a523: Enable CPU clocks |

Commit Message

Andre Przywara Sept. 25, 2026, 10:51 p.m. UTC 
The Allwinner A523 family of SoCs feature a separate clock unit for the
CPU PLLs and muxes, including one for the DSU interconnect.

Add a DT node for the CPU clock controller, and list all the clocks from
the other CCUs that this controller needs.
Also list the clock source for each CPU: there is one clock for each
cluster of four cores, suffixed L and B, for little and big (although
all cores are of the same Cortex-A55 type).

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 .../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index 85ef492ffeae7..d8aa13af3935e 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -6,6 +6,7 @@ 
 #include <dt-bindings/clock/sun55i-a523-ccu.h>
 #include <dt-bindings/clock/sun55i-a523-mcu-ccu.h>
 #include <dt-bindings/clock/sun55i-a523-r-ccu.h>
+#include <dt-bindings/clock/sun55i-a523-cpu-ccu.h>
 #include <dt-bindings/reset/sun55i-a523-ccu.h>
 #include <dt-bindings/reset/sun55i-a523-mcu-ccu.h>
 #include <dt-bindings/reset/sun55i-a523-r-ccu.h>
@@ -25,6 +26,7 @@  cpu0: cpu@0 {
 			compatible = "arm,cortex-a55";
 			device_type = "cpu";
 			reg = <0x000>;
+			clocks = <&cpu_ccu CLK_CPU_L>;
 			enable-method = "psci";
 		};
 
@@ -32,6 +34,7 @@  cpu1: cpu@100 {
 			compatible = "arm,cortex-a55";
 			device_type = "cpu";
 			reg = <0x100>;
+			clocks = <&cpu_ccu CLK_CPU_L>;
 			enable-method = "psci";
 		};
 
@@ -39,6 +42,7 @@  cpu2: cpu@200 {
 			compatible = "arm,cortex-a55";
 			device_type = "cpu";
 			reg = <0x200>;
+			clocks = <&cpu_ccu CLK_CPU_L>;
 			enable-method = "psci";
 		};
 
@@ -46,6 +50,7 @@  cpu3: cpu@300 {
 			compatible = "arm,cortex-a55";
 			device_type = "cpu";
 			reg = <0x300>;
+			clocks = <&cpu_ccu CLK_CPU_L>;
 			enable-method = "psci";
 		};
 
@@ -53,6 +58,7 @@  cpu4: cpu@400 {
 			compatible = "arm,cortex-a55";
 			device_type = "cpu";
 			reg = <0x400>;
+			clocks = <&cpu_ccu CLK_CPU_B>;
 			enable-method = "psci";
 		};
 
@@ -60,6 +66,7 @@  cpu5: cpu@500 {
 			compatible = "arm,cortex-a55";
 			device_type = "cpu";
 			reg = <0x500>;
+			clocks = <&cpu_ccu CLK_CPU_B>;
 			enable-method = "psci";
 		};
 
@@ -67,6 +74,7 @@  cpu6: cpu@600 {
 			compatible = "arm,cortex-a55";
 			device_type = "cpu";
 			reg = <0x600>;
+			clocks = <&cpu_ccu CLK_CPU_B>;
 			enable-method = "psci";
 		};
 
@@ -74,6 +82,7 @@  cpu7: cpu@700 {
 			compatible = "arm,cortex-a55";
 			device_type = "cpu";
 			reg = <0x700>;
+			clocks = <&cpu_ccu CLK_CPU_B>;
 			enable-method = "psci";
 		};
 	};
@@ -1144,5 +1153,17 @@  npu: npu@7122000 {
 			resets = <&mcu_ccu RST_BUS_MCU_NPU>;
 			power-domains = <&ppu PD_NPU>;
 		};
+
+		cpu_ccu: clock-controller@8817000 {
+			compatible = "allwinner,sun55i-a523-cpu-ccu";
+			reg = <0x08817000 0x80>;
+			clocks = <&osc24M>, <&rtc CLK_OSC32K>,
+				 <&rtc CLK_IOSC>, <&ccu CLK_PLL_PERIPH0_2X>,
+				 <&ccu CLK_PLL_PERIPH0_600M>;
+			clock-names = "hosc", "losc",
+				      "iosc", "pll-periph0-2x",
+				      "pll-periph0-600m";
+			#clock-cells = <1>;
+		};
 	};
 };