[PATCH v1 1/6] arm64: dts: meson: a1: introduce PLL and Peripherals clk controllers

Dmitry Rokosov ddrokosov at sberdevices.ru
Wed Jun 7 13:16:36 PDT 2023


This patch adds clkc and clkc_pll dts nodes to A1 SoC main dtsi.
The first one clk controller is responsible for all SoC peripherals
clocks excluding audio clocks. The second one clk controller is used by
A1 SoC PLLs. Actually, there are two different APB heads, so we have two
different drivers.

Signed-off-by: Dmitry Rokosov <ddrokosov at sberdevices.ru>
---
 arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 26 +++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
index eed96f262844..a24228808c9c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
@@ -6,6 +6,8 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/gpio/meson-a1-gpio.h>
+#include <dt-bindings/clock/amlogic,a1-pll-clkc.h>
+#include <dt-bindings/clock/amlogic,a1-peripherals-clkc.h>
 
 / {
 	compatible = "amlogic,a1";
@@ -126,6 +128,30 @@ uart_AO_B: serial at 2000 {
 				status = "disabled";
 			};
 
+			clkc_periphs: clock-controller at 800 {
+				compatible = "amlogic,a1-peripherals-clkc";
+				reg = <0 0x800 0 0x104>;
+				#clock-cells = <1>;
+				clocks = <&clkc_pll CLKID_FCLK_DIV2>,
+					 <&clkc_pll CLKID_FCLK_DIV3>,
+					 <&clkc_pll CLKID_FCLK_DIV5>,
+					 <&clkc_pll CLKID_FCLK_DIV7>,
+					 <&clkc_pll CLKID_HIFI_PLL>,
+					 <&xtal>;
+				clock-names = "fclk_div2", "fclk_div3",
+					      "fclk_div5", "fclk_div7",
+					      "hifi_pll", "xtal";
+			};
+
+			clkc_pll: pll-clock-controller at 7c80 {
+				compatible = "amlogic,a1-pll-clkc";
+				reg = <0 0x7c80 0 0x18c>;
+				#clock-cells = <1>;
+				clocks = <&clkc_periphs CLKID_FIXPLL_IN>,
+					 <&clkc_periphs CLKID_HIFIPLL_IN>;
+				clock-names = "fixpll_in", "hifipll_in";
+			};
+
 			gpio_intc: interrupt-controller at 0440 {
 				compatible = "amlogic,meson-a1-gpio-intc",
 					     "amlogic,meson-gpio-intc";
-- 
2.36.0




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