linux-kernel - [PATCH 15/16] ARM: dts: microchip: sama7d65: Add Reset and Shutdown and PM support

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Message-ID: <4c7226eb6e70ebd8fcc3e1afd0dbdf3d5a16f2a6.1738257860.git.Ryan.Wanner@microchip.com>
Date: Thu, 30 Jan 2025 10:33:55 -0700
From: <Ryan.Wanner@...rochip.com>
To: <lee@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
	<conor+dt@...nel.org>, <claudiu.beznea@...on.dev>, <sre@...nel.org>,
	<nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
	<p.zabel@...gutronix.de>, <linux@...linux.org.uk>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-pm@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-rtc@...r.kernel.org>, Ryan Wanner <Ryan.Wanner@...rochip.com>
Subject: [PATCH 15/16] ARM: dts: microchip: sama7d65: Add Reset and Shutdown and PM support

From: Ryan Wanner <Ryan.Wanner@...rochip.com>

Add support for reset controller, wake up alarm timers, and shutdown
controller.

Add SRAM, SFR, secumod, UDDRC, and DDR3phy to enable support for low power modes.

Signed-off-by: Ryan Wanner <Ryan.Wanner@...rochip.com>
---
 arch/arm/boot/dts/microchip/sama7d65.dtsi | 77 +++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/arch/arm/boot/dts/microchip/sama7d65.dtsi b/arch/arm/boot/dts/microchip/sama7d65.dtsi
index 854b30d15dcd4..8e117586e5902 100644
--- a/arch/arm/boot/dts/microchip/sama7d65.dtsi
+++ b/arch/arm/boot/dts/microchip/sama7d65.dtsi
@@ -46,12 +46,42 @@ slow_xtal: clock-slowxtal {
 		};
 	};
 
+	ns_sram: sram@...000 {
+		compatible = "mmio-sram";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0x100000 0x20000>;
+		ranges;
+	};
+
 	soc {
 		compatible = "simple-bus";
 		ranges;
 		#address-cells = <1>;
 		#size-cells = <1>;
 
+		securam: sram@...00800 {
+			compatible = "microchip,sama7d65-securam", "atmel,sama5d2-securam", "mmio-sram";
+			reg = <0xe0000800 0x4000>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 17>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0xe0000800 0x4000>;
+			no-memory-wc;
+		};
+
+		secumod: secumod@...04000 {
+			compatible = "microchip,sama7d65-secumod", "atmel,sama5d2-secumod", "syscon";
+			reg = <0xe0004000 0x4000>;
+			gpio-controller;
+			#gpio-cells = <2>;
+		};
+
+		sfrbu: sfr@...08000 {
+			compatible ="microchip,sama7d65-sfrbu", "atmel,sama5d2-sfrbu", "syscon";
+			reg = <0xe0008000 0x20>;
+		};
+
 		pioa: pinctrl@...14000 {
 			compatible = "microchip,sama7d65-pinctrl", "microchip,sama7g5-pinctrl";
 			reg = <0xe0014000 0x800>;
@@ -76,6 +106,31 @@ pmc: clock-controller@...18000 {
 			clock-names = "td_slck", "md_slck", "main_xtal";
 		};
 
+		reset_controller: reset-controller@...1d100 {
+			compatible = "microchip,sama7d65-rstc", "microchip,sama7g5-rstc";
+			reg = <0xe001d100 0xc>, <0xe001d1e4 0x4>;
+			#reset-cells = <1>;
+			clocks = <&clk32k 0>;
+		};
+
+		shdwc: poweroff@...1d200 {
+			compatible = "microchip,sama7d65-shdwc", "microchip,sama7g5-shdwc", "syscon";
+			reg = <0xe001d200 0x20>;
+			clocks = <&clk32k 0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			atmel,wakeup-rtc-timer;
+			atmel,wakeup-rtt-timer;
+			status = "disabled";
+		};
+
+		rtt: rtc@...1d300 {
+			compatible = "microchip,sama7d65-rtt", "microchip,sama7g5-rtt", "atmel,at91sam9260-rtt";
+			reg = <0xe001d300 0x30>;
+			interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk32k 0>;
+		};
+
 		clk32k: clock-controller@...1d500 {
 			compatible = "microchip,sama7d65-sckc", "microchip,sam9x60-sckc";
 			reg = <0xe001d500 0x4>;
@@ -83,6 +138,18 @@ clk32k: clock-controller@...1d500 {
 			#clock-cells = <1>;
 		};
 
+		gpbr: gpbr@...1d700 {
+			compatible = "microchip,sama7d65-gpbr", "syscon";
+			reg = <0xe001d700 0x48>;
+		};
+
+		rtc: rtc@...1d800 {
+			compatible = "microchip,sama7d65-rtc", "microchip,sam9x60-rtc";
+			reg = <0xe001d800 0x30>;
+			interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk32k 1>;
+		};
+
 		sdmmc1: mmc@...08000 {
 			compatible = "microchip,sama7d65-sdhci", "microchip,sam9x60-sdhci";
 			reg = <0xe1208000 0x400>;
@@ -132,6 +199,16 @@ uart6: serial@200 {
 			};
 		};
 
+		uddrc: uddrc@...00000 {
+			compatible = "microchip,sama7d65-uddrc", "microchip,sama7g5-uddrc";
+			reg = <0xe3800000 0x4000>;
+		};
+
+		ddr3phy: ddr3phy@...04000 {
+			compatible = "microchip,sama7d65-ddr3phy", "microchip,sama7g5-ddr3phy";
+			reg = <0xe3804000 0x1000>;
+		};
+
 		gic: interrupt-controller@...11000 {
 			compatible = "arm,cortex-a7-gic";
 			reg = <0xe8c11000 0x1000>,
-- 
2.43.0