linux-kernel - [PATCH 2/2] arm64: dts: renesas: spider-cpu: Switch from SCIF3 to HSCIF0

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Date:   Mon, 13 Jun 2022 15:10:32 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     linux-renesas-soc@...r.kernel.org
Cc:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] arm64: dts: renesas: spider-cpu: Switch from SCIF3 to HSCIF0

Every loader before Linux utilizes HSCIF0 with a speed of 1843200bps.
Make Linux behave the same.

Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
---
 .../boot/dts/renesas/r8a779f0-spider-cpu.dtsi | 26 +++++++++----------
 .../boot/dts/renesas/r8a779f0-spider.dts      |  4 +--
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
index 41aa8591b3b1..3208d2148768 100644
--- a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
@@ -31,6 +31,14 @@ &extalr_clk {
 	clock-frequency = <32768>;
 };
 
+&hscif0 {
+	pinctrl-0 = <&hscif0_pins>;
+	pinctrl-names = "default";
+
+	uart-has-rtscts;
+	status = "okay";
+};
+
 &i2c4 {
 	pinctrl-0 = <&i2c4_pins>;
 	pinctrl-names = "default";
@@ -50,16 +58,16 @@ &pfc {
 	pinctrl-0 = <&scif_clk_pins>;
 	pinctrl-names = "default";
 
+	hscif0_pins: hscif0 {
+		groups = "hscif0_data", "hscif0_ctrl";
+		function = "hscif0";
+	};
+
 	i2c4_pins: i2c4 {
 		groups = "i2c4";
 		function = "i2c4";
 	};
 
-	scif3_pins: scif3 {
-		groups = "scif3_data", "scif3_ctrl";
-		function = "scif3";
-	};
-
 	scif_clk_pins: scif_clk {
 		groups = "scif_clk";
 		function = "scif_clk";
@@ -71,14 +79,6 @@ &rwdt {
 	status = "okay";
 };
 
-&scif3 {
-	pinctrl-0 = <&scif3_pins>;
-	pinctrl-names = "default";
-
-	uart-has-rtscts;
-	status = "okay";
-};
-
 &scif_clk {
 	clock-frequency = <24000000>;
 };
diff --git a/arch/arm64/boot/dts/renesas/r8a779f0-spider.dts b/arch/arm64/boot/dts/renesas/r8a779f0-spider.dts
index 2e3b719cc749..954ba227bfa7 100644
--- a/arch/arm64/boot/dts/renesas/r8a779f0-spider.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779f0-spider.dts
@@ -14,11 +14,11 @@ / {
 	compatible = "renesas,spider-breakout", "renesas,spider-cpu", "renesas,r8a779f0";
 
 	aliases {
-		serial0 = &scif3;
+		serial0 = &hscif0;
 	};
 
 	chosen {
-		stdout-path = "serial0:115200n8";
+		stdout-path = "serial0:1843200n8";
 	};
 };
 
-- 
2.35.1