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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 6/7] ARM: dts: i.MX8MQ: Add Cortex-M4 Coprocessor node
Date: Mon,  5 Oct 2020 11:53:45 +0200	[thread overview]
Message-ID: <20201005095346.27957-7-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20201005095346.27957-1-s.hauer@pengutronix.de>

The i.MX8MQ has a Cortex-M7 Coprocessor. Add a node for controlling it.
To make use of it the board has to provide the reserved memory nodes,
for example:

reserved-memory {
	#address-cells = <2>;
	#size-cells = <2>;
	ranges;

	m4_reserved: m7@0x40000000 {
		no-map;
		reg = <0 0x40000000 0 0x1000000>;
	};

	m4_reserved_sysmem3: rproc@80000000 {
		reg = <0 0x80000000 0 0x800000>;
		no-map;
	};
};

&remoteproc_cm4 {
	memory-region = <&m4_reserved>, <&m4_reserved_sysmem3>;
};

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/dts/imx8mq.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/dts/imx8mq.dtsi b/arch/arm/dts/imx8mq.dtsi
index 5f2df35bc9..ec8347f38f 100644
--- a/arch/arm/dts/imx8mq.dtsi
+++ b/arch/arm/dts/imx8mq.dtsi
@@ -4,6 +4,14 @@
  * Copyright (C) 2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
  */
 
+/ {
+	remoteproc_cm4: remoteproc-cm4 {
+		compatible = "fsl,imx8mq-cm4";
+		clocks = <&clk IMX8MQ_CLK_M4_CORE>;
+		syscon = <&src>;
+	};
+};
+
 &clk {
 	assigned-clocks = <&clk IMX8MQ_CLK_USDHC1>,
 			  <&clk IMX8MQ_CLK_USDHC2>,
-- 
2.28.0


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  parent reply	other threads:[~2020-10-05  9:53 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-05  9:53 [PATCH 0/7] remoteproc: Add i.MX8M Cortex-M[47] support Sascha Hauer
2020-10-05  9:53 ` [PATCH 1/7] remoteproc: imx: Fix off-by-one error Sascha Hauer
2020-10-05 12:23   ` Lucas Stach
2020-10-07  7:06     ` Sascha Hauer
2020-10-05  9:53 ` [PATCH 2/7] remoteproc: imx: Change SoC order in code Sascha Hauer
2020-10-05  9:53 ` [PATCH 3/7] remoteproc: imx: use function hooks in SoC data Sascha Hauer
2020-10-05  9:53 ` [PATCH 4/7] remoteproc: imx: Add i.MX8M support Sascha Hauer
2020-10-05  9:53 ` [PATCH 5/7] clk: i.MX8MQ: Add Cortex-M4 clk Sascha Hauer
2020-10-05  9:53 ` Sascha Hauer [this message]
2020-10-05 12:05   ` [PATCH 6/7] ARM: dts: i.MX8MQ: Add Cortex-M4 Coprocessor node Rouven Czerwinski
2020-10-07  7:07     ` Sascha Hauer
2020-10-05  9:53 ` [PATCH 7/7] ARM: dts: i.MX8MP: Add Cortex-M7 " Sascha Hauer

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