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Message-ID: <1506694735-14227-1-git-send-email-pierre-yves.mordret@st.com>
Date: Fri, 29 Sep 2017 16:18:55 +0200
From: Pierre-Yves MORDRET <pierre-yves.mordret@...com>
To: Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Russell King <linux@...linux.org.uk>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...com>
CC: <devicetree@...r.kernel.or>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
Pierre-Yves MORDRET <pierre-yves.mordret@...com>
Subject: [PATCH v3] ARM: dts: stm32: Add DMAMUX support for STM32H743 SoC
This patch adds DMAMUX support for STM32H743 SoC.
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@...com>
---
Version history:
v3:
* Rebase on v4.14-rc2
v2:
* Update DTS to be compliant with up-streamed bindings
v1:
* Initial
---
---
arch/arm/boot/dts/stm32h743.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
index 58ec227..e8457f6 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -121,6 +121,7 @@
clocks = <&timer_clk>;
#dma-cells = <4>;
st,mem2mem;
+ dma-requests = <8>;
status = "disabled";
};
@@ -138,6 +139,7 @@
clocks = <&timer_clk>;
#dma-cells = <4>;
st,mem2mem;
+ dma-requests = <8>;
status = "disabled";
};
@@ -193,6 +195,16 @@
status = "disabled";
};
};
+
+ dmamux1: dma-router@...20800 {
+ compatible = "st,stm32h7-dmamux";
+ reg = <0x40020800 0x1c>;
+ #dma-cells = <3>;
+ dma-channels = <16>;
+ dma-requests = <128>;
+ dma-masters = <&dma1 &dma2>;
+ clocks = <&timer_clk>;
+ };
};
};
--
2.7.4
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