linux-kernel - [PATCH v5 12/13] MIPS: mobileye: eyeq5: add OLB reset controller node

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Date: Fri, 09 Feb 2024 15:31:48 +0100
From: Théo Lebrun <theo.lebrun@...tlin.com>
To: Gregory CLEMENT <gregory.clement@...tlin.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Rafał Miłecki <rafal@...ecki.pl>, 
 Philipp Zabel <p.zabel@...gutronix.de>
Cc: Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>, 
 linux-mips@...r.kernel.org, linux-clk@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Tawfik Bayouk <tawfik.bayouk@...ileye.com>, linux-gpio@...r.kernel.org, 
 Théo Lebrun <theo.lebrun@...tlin.com>
Subject: [PATCH v5 12/13] MIPS: mobileye: eyeq5: add OLB reset controller
 node

Add the devicetree node for the reset controller on the Mobileye EyeQ5
platform. It appears as a subnode to the OLB syscon as its registers
are located in this shared register region.

Add reset phandles to UART nodes.

Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
---
 arch/mips/boot/dts/mobileye/eyeq5.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/mips/boot/dts/mobileye/eyeq5.dtsi b/arch/mips/boot/dts/mobileye/eyeq5.dtsi
index 1a65b43e13b1..76935f237ab5 100644
--- a/arch/mips/boot/dts/mobileye/eyeq5.dtsi
+++ b/arch/mips/boot/dts/mobileye/eyeq5.dtsi
@@ -78,6 +78,7 @@ uart0: serial@...000 {
 			interrupts = <GIC_SHARED 6 IRQ_TYPE_LEVEL_HIGH>;
 			clocks  = <&uart_clk>, <&occ_periph>;
 			clock-names = "uartclk", "apb_pclk";
+			resets = <&reset 0 10>;
 		};
 
 		uart1: serial@...000 {
@@ -88,6 +89,7 @@ uart1: serial@...000 {
 			interrupts = <GIC_SHARED 6 IRQ_TYPE_LEVEL_HIGH>;
 			clocks  = <&uart_clk>, <&occ_periph>;
 			clock-names = "uartclk", "apb_pclk";
+			resets = <&reset 0 11>;
 		};
 
 		uart2: serial@...000 {
@@ -98,6 +100,7 @@ uart2: serial@...000 {
 			interrupts = <GIC_SHARED 6 IRQ_TYPE_LEVEL_HIGH>;
 			clocks  = <&uart_clk>, <&occ_periph>;
 			clock-names = "uartclk", "apb_pclk";
+			resets = <&reset 0 12>;
 		};
 
 		olb: system-controller@...000 {
@@ -107,6 +110,13 @@ olb: system-controller@...000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
 
+			reset: reset-controller@...000 {
+				compatible = "mobileye,eyeq5-reset";
+				reg = <0x000 0x0c>, <0x200 0x34>, <0x120 0x04>;
+				reg-names = "d0", "d1", "d2";
+				#reset-cells = <2>;
+			};
+
 			clocks: clock-controller@...02c {
 				compatible = "mobileye,eyeq5-clk";
 				reg = <0x02c 0x50>, <0x11c 0x04>;

-- 
2.43.0