linux-kernel - [PATCH v2] ARM: dts: renesas: Add boot phase tags marking to Renesas RZ/A1

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Message-ID: <20250806150448.9669-1-marek.vasut+renesas@mailbox.org>
Date: Wed,  6 Aug 2025 17:04:27 +0200
From: Marek Vasut <marek.vasut+renesas@...lbox.org>
To: linux-arm-kernel@...ts.infradead.org
Cc: Marek Vasut <marek.vasut+renesas@...lbox.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Magnus Damm <magnus.damm@...il.com>,
	Rob Herring <robh@...nel.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org
Subject: [PATCH v2] ARM: dts: renesas: Add boot phase tags marking to Renesas RZ/A1

bootph-all as phase tag was added to dt-schema (dtschema/schemas/bootph.yaml)
to describe various node usage during boot phases with DT. Add bootph-all for
all nodes that are used in the bootloader on Renesas RZ/A1 SoC.

All SoC require BSC bus, PFC pin control and OSTM0 timer access during all
stages of the boot process, those are marked using bootph-all property, and
so is the SoC bus node which contains the PFC and OSTM IPs.

Each board console UART is also marked as bootph-all to make it available in
all stages of the boot process.

Signed-off-by: Marek Vasut <marek.vasut+renesas@...lbox.org>
---
Cc: Conor Dooley <conor+dt@...nel.org>
Cc: Geert Uytterhoeven <geert+renesas@...der.be>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: Magnus Damm <magnus.damm@...il.com>
Cc: Rob Herring <robh@...nel.org>
Cc: devicetree@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Cc: linux-renesas-soc@...r.kernel.org
---
V2: Drop blank newline arount bootph-all , move ostm bootph-all to board DTs
---
 arch/arm/boot/dts/renesas/r7s72100-genmai.dts   | 4 +++-
 arch/arm/boot/dts/renesas/r7s72100-gr-peach.dts | 4 +++-
 arch/arm/boot/dts/renesas/r7s72100-rskrza1.dts  | 3 +++
 arch/arm/boot/dts/renesas/r7s72100.dtsi         | 3 +++
 4 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/renesas/r7s72100-genmai.dts b/arch/arm/boot/dts/renesas/r7s72100-genmai.dts
index c81840dfb7da..3c3756509714 100644
--- a/arch/arm/boot/dts/renesas/r7s72100-genmai.dts
+++ b/arch/arm/boot/dts/renesas/r7s72100-genmai.dts
@@ -203,6 +203,7 @@ &mtu2 {
 };
 
 &ostm0 {
+	bootph-all;
 	status = "okay";
 };
 
@@ -258,6 +259,7 @@ mmcif_pins: mmcif {
 	};
 
 	scif2_pins: serial2 {
+		bootph-all;
 		/* P3_0 as TxD2; P3_2 as RxD2 */
 		pinmux = <RZA1_PINMUX(3, 0, 6)>, <RZA1_PINMUX(3, 2, 4)>;
 	};
@@ -286,7 +288,7 @@ &rtc {
 &scif2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&scif2_pins>;
-
+	bootph-all;
 	status = "okay";
 };
 
diff --git a/arch/arm/boot/dts/renesas/r7s72100-gr-peach.dts b/arch/arm/boot/dts/renesas/r7s72100-gr-peach.dts
index 9d29861f23f1..23ddec217685 100644
--- a/arch/arm/boot/dts/renesas/r7s72100-gr-peach.dts
+++ b/arch/arm/boot/dts/renesas/r7s72100-gr-peach.dts
@@ -59,6 +59,7 @@ led1 {
 
 &pinctrl {
 	scif2_pins: serial2 {
+		bootph-all;
 		/* P6_2 as RxD2; P6_3 as TxD2 */
 		pinmux = <RZA1_PINMUX(6, 2, 7)>, <RZA1_PINMUX(6, 3, 7)>;
 	};
@@ -99,6 +100,7 @@ &mtu2 {
 };
 
 &ostm0 {
+	bootph-all;
 	status = "okay";
 };
 
@@ -109,7 +111,7 @@ &ostm1 {
 &scif2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&scif2_pins>;
-
+	bootph-all;
 	status = "okay";
 };
 
diff --git a/arch/arm/boot/dts/renesas/r7s72100-rskrza1.dts b/arch/arm/boot/dts/renesas/r7s72100-rskrza1.dts
index 25c6d0c78828..91178fb9e721 100644
--- a/arch/arm/boot/dts/renesas/r7s72100-rskrza1.dts
+++ b/arch/arm/boot/dts/renesas/r7s72100-rskrza1.dts
@@ -199,6 +199,7 @@ keyboard_pins: keyboard {
 
 	/* Serial Console */
 	scif2_pins: serial2 {
+		bootph-all;
 		pinmux = <RZA1_PINMUX(3, 0, 6)>,	/* TxD2 */
 			 <RZA1_PINMUX(3, 2, 4)>;	/* RxD2 */
 	};
@@ -264,6 +265,7 @@ &sdhi1 {
 };
 
 &ostm0 {
+	bootph-all;
 	status = "okay";
 };
 
@@ -278,6 +280,7 @@ &rtc {
 &scif2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&scif2_pins>;
+	bootph-all;
 	status = "okay";
 };
 
diff --git a/arch/arm/boot/dts/renesas/r7s72100.dtsi b/arch/arm/boot/dts/renesas/r7s72100.dtsi
index 1a866dbaf5e9..a1e4e9ac8f62 100644
--- a/arch/arm/boot/dts/renesas/r7s72100.dtsi
+++ b/arch/arm/boot/dts/renesas/r7s72100.dtsi
@@ -41,6 +41,7 @@ bsc: bus {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges = <0 0 0x18000000>;
+		bootph-all;
 	};
 
 	cpus {
@@ -107,6 +108,7 @@ soc {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
+		bootph-all;
 
 		L2: cache-controller@...ff000 {
 			compatible = "arm,pl310-cache";
@@ -557,6 +559,7 @@ R7S72100_CLK_SDHI10 R7S72100_CLK_SDHI11
 
 		pinctrl: pinctrl@...e3000 {
 			compatible = "renesas,r7s72100-ports";
+			bootph-all;
 
 			reg = <0xfcfe3000 0x4230>;
 
-- 
2.47.2