linux-kernel - [PATCH v4 5/5] arm64: dts: mediatek: add clock support for mt7986b

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Date:   Thu, 14 Oct 2021 15:56:20 +0800
From:   Sam Shih <sam.shih@...iatek.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Fabien Parent <fparent@...libre.com>,
        "Weiyi Lu" <weiyi.lu@...iatek.com>,
        Chun-Jie Chen <chun-jie.chen@...iatek.com>,
        Ikjoon Jang <ikjn@...omium.org>,
        Miles Chen <miles.chen@...iatek.com>,
        "Enric Balletbo i Serra" <enric.balletbo@...labora.com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <linux-clk@...r.kernel.org>
CC:     John Crispin <john@...ozen.org>,
        Ryder Lee <Ryder.Lee@...iatek.com>,
        "Sam Shih" <sam.shih@...iatek.com>
Subject: [PATCH v4 5/5] arm64: dts: mediatek: add clock support for mt7986b

Add clock controller nodes, include 40M clock source, topckgen,
infracfg, apmixedsys and ethernet subsystem.

Signed-off-by: Sam Shih <sam.shih@...iatek.com>
---
 arch/arm64/boot/dts/mediatek/mt7986b.dtsi | 68 +++++++++++++++++++++--
 1 file changed, 63 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt7986b.dtsi b/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
index 2b8e0a382398..9cc27020901a 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
@@ -6,6 +6,7 @@
 
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/mt7986-clk.h>
 
 / {
 	compatible = "mediatek,mt7986b";
@@ -13,9 +14,10 @@ / {
 	#address-cells = <2>;
 	#size-cells = <2>;
 
-	system_clk: dummy40m {
+	clk40m: oscillator@0 {
 		compatible = "fixed-clock";
 		clock-frequency = <40000000>;
+		clock-output-names = "clkxtal";
 		#clock-cells = <0>;
 	};
 
@@ -99,6 +101,18 @@ gic: interrupt-controller@...0000 {
 			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
+		infracfg: infracfg@...01000 {
+			compatible = "mediatek,mt7986-infracfg", "syscon";
+			reg = <0 0x10001000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		topckgen: topckgen@...1b000 {
+			compatible = "mediatek,mt7986-topckgen", "syscon";
+			reg = <0 0x1001B000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
 		watchdog: watchdog@...1c000 {
 			compatible = "mediatek,mt7986-wdt",
 				     "mediatek,mt6589-wdt";
@@ -108,11 +122,31 @@ watchdog: watchdog@...1c000 {
 			status = "disabled";
 		};
 
+		apmixedsys: apmixedsys@...1e000 {
+			compatible = "mediatek,mt7986-apmixedsys";
+			reg = <0 0x1001E000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		sgmiisys0: syscon@...60000 {
+			compatible = "mediatek,mt7986-sgmiisys_0",
+				     "syscon";
+			reg = <0 0x10060000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		sgmiisys1: syscon@...70000 {
+			compatible = "mediatek,mt7986-sgmiisys_1",
+				     "syscon";
+			reg = <0 0x10070000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
 		trng: trng@...0f000 {
 			compatible = "mediatek,mt7986-rng",
 				     "mediatek,mt7623-rng";
 			reg = <0 0x1020f000 0 0x100>;
-			clocks = <&system_clk>;
+			clocks = <&infracfg CLK_INFRA_TRNG_CK>;
 			clock-names = "rng";
 			status = "disabled";
 		};
@@ -122,7 +156,13 @@ uart0: serial@...02000 {
 				     "mediatek,mt6577-uart";
 			reg = <0 0x11002000 0 0x400>;
 			interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&system_clk>;
+			clocks = <&infracfg CLK_INFRA_UART0_SEL>,
+				 <&infracfg CLK_INFRA_UART0_CK>;
+			clock-names = "baud", "bus";
+			assigned-clocks = <&topckgen CLK_TOP_UART_SEL>,
+					  <&infracfg CLK_INFRA_UART0_SEL>;
+			assigned-clock-parents = <&topckgen CLK_TOP_XTAL>,
+						 <&topckgen CLK_TOP_UART_SEL>;
 			status = "disabled";
 		};
 
@@ -131,7 +171,11 @@ uart1: serial@...03000 {
 				     "mediatek,mt6577-uart";
 			reg = <0 0x11003000 0 0x400>;
 			interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&system_clk>;
+			clocks = <&infracfg CLK_INFRA_UART1_SEL>,
+				 <&infracfg CLK_INFRA_UART1_CK>;
+			clock-names = "baud", "bus";
+			assigned-clocks = <&infracfg CLK_INFRA_UART1_SEL>;
+			assigned-clock-parents = <&topckgen CLK_TOP_F26M_SEL>;
 			status = "disabled";
 		};
 
@@ -140,10 +184,24 @@ uart2: serial@...04000 {
 				     "mediatek,mt6577-uart";
 			reg = <0 0x11004000 0 0x400>;
 			interrupts = <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&system_clk>;
+			clocks = <&infracfg CLK_INFRA_UART2_SEL>,
+				 <&infracfg CLK_INFRA_UART2_CK>;
+			clock-names = "baud", "bus";
+			assigned-clocks = <&infracfg CLK_INFRA_UART2_SEL>;
+			assigned-clock-parents = <&topckgen CLK_TOP_F26M_SEL>;
 			status = "disabled";
 		};
 
+		ethsys: syscon@...00000 {
+			 #address-cells = <1>;
+			 #size-cells = <1>;
+			 compatible = "mediatek,mt7986-ethsys",
+				      "syscon";
+			 reg = <0 0x15000000 0 0x1000>;
+			 #clock-cells = <1>;
+			 #reset-cells = <1>;
+		};
+
 	};
 
 };
-- 
2.29.2