From ae5dda2d1d05f7c6263c87bc461bf6a6e12220e2 Mon Sep 17 00:00:00 2001
From: Fabien Dessenne <fabien.dessenne@st.com>
Date: Fri, 26 Jul 2019 18:09:53 +0200
Subject: [PATCH] ARM: dts: stm32: enable m4 coprocessor support on
 STM32MP157a-dk1

Enable m4 coprocessor for STM32MP157a-dk1 board.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
---
 arch/arm/boot/dts/stm32mp157a-dk1.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157a-dk1.dts b/arch/arm/boot/dts/stm32mp157a-dk1.dts
index 557dff1c2b1b..279bf2f729fc 100644
--- a/arch/arm/boot/dts/stm32mp157a-dk1.dts
+++ b/arch/arm/boot/dts/stm32mp157a-dk1.dts
@@ -325,6 +325,16 @@
 	};
 };
 
+&m4_rproc {
+	memory-region = <&retram>, <&mcuram>, <&mcuram2>, <&vdev0vring0>,
+			<&vdev0vring1>, <&vdev0buffer>;
+	mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>;
+	mbox-names = "vq0", "vq1", "shutdown";
+	interrupt-parent = <&exti>;
+	interrupts = <68 1>;
+	status = "okay";
+};
+
 &rng1 {
 	status = "okay";
 };