MIPS: mobileye: eyeq6h: add OLB nodes OLB and remove fixed clocks

Change the declaration of clocks: remove all fixed clocks and declare
system-controllers (OLB) as clock providers.

Remove eyeq6h-fixed-clocks.dtsi and move the crystal clock to the main
eyeq6h.dtsi file.

Signed-off-by: Théo Lebrun <[e-mail]>
Signed-off-by: Thomas Bogendoerfer <[e-mail]>

arch/mips/boot/dts/mobileye/eyeq6h-fixed-clocks.dtsi

···
-// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-/*
- * Copyright 2023 Mobileye Vision Technologies Ltd.
- */
-
-#include <dt-bindings/clock/mobileye,eyeq5-clk.h>
-
-/ {
-	xtal: clock-30000000 {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <30000000>;
-	};
-
-	pll_west: clock-2000000000-west {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <2000000000>;
-	};
-
-	pll_cpu: clock-2000000000-cpu {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <2000000000>;
-	};
-
-	/* pll-cpu derivatives */
-	occ_cpu: clock-2000000000-occ-cpu {
-		compatible = "fixed-factor-clock";
-		clocks = <&pll_cpu>;
-		#clock-cells = <0>;
-		clock-div = <1>;
-		clock-mult = <1>;
-	};
-
-	/* pll-west derivatives */
-	occ_periph_w: clock-200000000 {
-		compatible = "fixed-factor-clock";
-		clocks = <&pll_west>;
-		#clock-cells = <0>;
-		clock-div = <10>;
-		clock-mult = <1>;
-	};
-	uart_clk: clock-200000000-uart {
-		compatible = "fixed-factor-clock";
-		clocks = <&occ_periph_w>;
-		#clock-cells = <0>;
-		clock-div = <1>;
-		clock-mult = <1>;
-	};
-
-};

arch/mips/boot/dts/mobileye/eyeq6h.dtsi

···
 
 #include <dt-bindings/interrupt-controller/mips-gic.h>
 
-#include "eyeq6h-fixed-clocks.dtsi"
+#include <dt-bindings/clock/mobileye,eyeq5-clk.h>
 
 / {
 	#address-cells = <2>;
···
 			device_type = "cpu";
 			compatible = "img,i6500";
 			reg = <0>;
-			clocks = <&occ_cpu>;
+			clocks = <&olb_central EQ6HC_CENTRAL_CPU_OCC>;
 		};
 	};
 
···
 		#interrupt-cells = <1>;
 	};
 
+	xtal: clock-30000000 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <30000000>;
+	};
+
 	soc: soc {
 		compatible = "simple-bus";
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
+
+		olb_acc: system-controller@d2003000 {
+			compatible = "mobileye,eyeq6h-acc-olb", "syscon";
+			reg = <0x0 0xd2003000 0x0 0x1000>;
+			#reset-cells = <1>;
+			#clock-cells = <1>;
+			clocks = <&xtal>;
+			clock-names = "ref";
+		};
+
+		olb_central: system-controller@d3100000 {
+			compatible = "mobileye,eyeq6h-central-olb", "syscon";
+			reg = <0x0 0xd3100000 0x0 0x1000>;
+			#clock-cells = <1>;
+			clocks = <&xtal>;
+			clock-names = "ref";
+		};
 
 		uart0: serial@d3331000 {
 			compatible = "arm,pl011", "arm,primecell";
···
 			reg-io-width = <4>;
 			interrupt-parent = <&gic>;
 			interrupts = <GIC_SHARED 43 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&occ_periph_w>, <&occ_periph_w>;
+			clocks = <&olb_west EQ6HC_WEST_PER_UART>, <&olb_west EQ6HC_WEST_PER_OCC>;
 			clock-names = "uartclk", "apb_pclk";
 		};
 
···
 			pinctrl-single,function-mask = <0xffff>;
 		};
 
+		olb_west: system-controller@d3338000 {
+			compatible = "mobileye,eyeq6h-west-olb", "syscon";
+			reg = <0x0 0xd3338000 0x0 0x1000>;
+			#reset-cells = <1>;
+			#clock-cells = <1>;
+			clocks = <&xtal>;
+			clock-names = "ref";
+		};
+
 		pinctrl_east: pinctrl@d3357000 {
 			compatible = "pinctrl-single";
 			reg = <0x0 0xd3357000 0x0 0xb0>;
···
 			pinctrl-single,function-mask = <0xffff>;
 		};
 
+		olb_east: system-controller@d3358000 {
+			compatible = "mobileye,eyeq6h-east-olb", "syscon";
+			reg = <0x0 0xd3358000 0x0 0x1000>;
+			#reset-cells = <1>;
+			#clock-cells = <1>;
+			clocks = <&xtal>;
+			clock-names = "ref";
+		};
+
+		olb_south: system-controller@d8013000 {
+			compatible = "mobileye,eyeq6h-south-olb", "syscon";
+			reg = <0x0 0xd8013000 0x0 0x1000>;
+			#clock-cells = <1>;
+			clocks = <&xtal>;
+			clock-names = "ref";
+		};
+
 		pinctrl_south: pinctrl@d8014000 {
 			compatible = "pinctrl-single";
 			reg = <0x0 0xd8014000 0x0 0xf8>;
 			#pinctrl-cells = <1>;
 			pinctrl-single,register-width = <32>;
 			pinctrl-single,function-mask = <0xffff>;
+		};
+
+		olb_ddr0: system-controller@e4080000 {
+			compatible = "mobileye,eyeq6h-ddr0-olb", "syscon";
+			reg = <0x0 0xe4080000 0x0 0x1000>;
+			#clock-cells = <1>;
+			clocks = <&xtal>;
+			clock-names = "ref";
+		};
+
+		olb_ddr1: system-controller@e4081000 {
+			compatible = "mobileye,eyeq6h-ddr1-olb", "syscon";
+			reg = <0x0 0xe4081000 0x0 0x1000>;
+			#clock-cells = <1>;
+			clocks = <&xtal>;
+			clock-names = "ref";
 		};
 
 		gic: interrupt-controller@f0920000 {
···
 			timer {
 				compatible = "mti,gic-timer";
 				interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>;
-				clocks = <&occ_cpu>;
+				clocks = <&olb_central EQ6HC_CENTRAL_CPU_OCC>;
 			};
 		};
 	};