linux-kernel - [PATCH] ARM: dts: at91: ksz9477

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Date:   Wed, 12 Jul 2023 17:21:11 +0200
From:   Lukasz Majewski <lukma@...x.de>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Conor Dooley <conor+dt@...nel.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Lukasz Majewski <lukma@...x.de>
Subject: [PATCH] ARM: dts: at91: ksz9477_evb: Add missing timer nodes

Without this change the KSZ9477-EVB board hangs just after passing
execution flow from u-boot to Linux kernel.

This code has been copied from at91-sama5d3_xplained.dts.

Test setup: Linux 6.5-rc1
Config:     arch/arm/configs/sama5_defconfig
Toolchain:  gcc-linaro-7.3.1-2018.05-x86_64_arm-linux-gnueabi

Signed-off-by: Lukasz Majewski <lukma@...x.de>
---
 .../boot/dts/microchip/at91-sama5d3_ksz9477_evb.dts  | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/microchip/at91-sama5d3_ksz9477_evb.dts b/arch/arm/boot/dts/microchip/at91-sama5d3_ksz9477_evb.dts
index 14af1fd6d247..99cd6d15998b 100644
--- a/arch/arm/boot/dts/microchip/at91-sama5d3_ksz9477_evb.dts
+++ b/arch/arm/boot/dts/microchip/at91-sama5d3_ksz9477_evb.dts
@@ -162,6 +162,18 @@
 	};
 };
 
+&tcb0 {
+	timer0: timer@0 {
+		compatible = "atmel,tcb-timer";
+		reg = <0>;
+	};
+
+	timer1: timer@1 {
+		compatible = "atmel,tcb-timer";
+		reg = <1>;
+	};
+};
+
 &usb0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usba_vbus>;
-- 
2.20.1