linux-kernel - [PATCH v3 4/8] ARM: dts: stm32: add m4 remoteproc support on STM32MP157c

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Message-ID: <1556784606-3016-5-git-send-email-fabien.dessenne@st.com>
Date:   Thu, 2 May 2019 10:10:02 +0200
From:   Fabien Dessenne <fabien.dessenne@...com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-remoteproc@...r.kernel.org>
CC:     Fabien Dessenne <fabien.dessenne@...com>,
        Loic Pallardy <loic.pallardy@...com>,
        Arnaud Pouliquen <arnaud.pouliquen@...com>,
        "Ludovic Barre" <ludovic.barre@...com>,
        Benjamin Gaignard <benjamin.gaignard@...com>
Subject: [PATCH v3 4/8] ARM: dts: stm32: add m4 remoteproc support on STM32MP157c

Declare the M4 remote processor in a sub-node of the mlahb simple bus.

Signed-off-by: Fabien Dessenne <fabien.dessenne@...com>
---
 arch/arm/boot/dts/stm32mp157c.dtsi | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index c664b55..e8d3b00 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -1242,4 +1242,24 @@
 			status = "disabled";
 		};
 	};
+
+	mlahb {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		dma-ranges = <0x00000000 0x38000000 0x10000>,
+			     <0x10000000 0x10000000 0x60000>,
+			     <0x30000000 0x30000000 0x60000>;
+
+		m4_rproc: m4@...00000 {
+			compatible = "st,stm32mp1-m4";
+			reg = <0x00000000 0x10000>,
+			      <0x10000000 0x40000>,
+			      <0x30000000 0x40000>;
+			resets = <&rcc MCU_R>;
+			st,syscfg-holdboot = <&rcc 0x10C 0x1>;
+			st,syscfg-tz = <&rcc 0x000 0x1>;
+			status = "disabled";
+		};
+	};
 };
-- 
2.7.4