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[PATCH v2 0/4] Add STM32 MDMA driver

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  [PATCH v2 0/4] Add STM32 MDMA driver Pierre-Yves MORDRET <pierre-yves.mordret@st.com> - 2017-07-06 14:30 +0200
    [PATCH v2 3/4] ARM: dts: stm32: Add MDMA support for STM32H743 SoC Pierre-Yves MORDRET <pierre-yves.mordret@st.com> - 2017-07-06 14:30 +0200

#1682390 — [PATCH v2 0/4] Add STM32 MDMA driver

This patchset adds support for the STM32 MDMA controller.
The Master Direct memory access (MDMA) provides high-speed data transfer
between memory and memory or between peripherals and memory.
Contrary to STM32 DMA, the STM32 MDMA controller supports hardware LLI and
uses a larger integrated FIFO (128 vs 16 bytes)
---
  Version history:
     v2:
         * change compatible into st,stm32h7-mdma to be more SoC specific
         * Add MDMA support in DT for H7
         * Add MDMA support in STM32 defconfig
---
Pierre-Yves MORDRET (4):
  dt-bindings: Document the STM32 MDMA bindings
  dmaengine: Add STM32 MDMA driver
  ARM: dts: stm32: Add MDMA support for STM32H743 SoC
  ARM: configs: stm32: Add MDMA support in STM32 defconfig

 .../devicetree/bindings/dma/stm32-mdma.txt         |   94 ++
 arch/arm/boot/dts/stm32h743.dtsi                   |   10 +
 arch/arm/configs/stm32_defconfig                   |    1 +
 drivers/dma/Kconfig                                |   12 +
 drivers/dma/Makefile                               |    1 +
 drivers/dma/stm32-mdma.c                           | 1536 ++++++++++++++++++++
 6 files changed, 1654 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/stm32-mdma.txt
 create mode 100644 drivers/dma/stm32-mdma.c

-- 
2.7.4

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#1682395 — [PATCH v2 3/4] ARM: dts: stm32: Add MDMA support for STM32H743 SoC

This patch adds MDMA support for STM32H743 SoC.

Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
---
 Version history:
    v2:
        * Add MDMA support in DT for H7
---
---
 arch/arm/boot/dts/stm32h743.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
index 4685629..cc566df 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -74,6 +74,16 @@
 			interrupts = <50>;
 			clocks = <&timer_clk>;
 		};
+
+		mdma1: dma@52000000 {
+			compatible = "st,stm32h7-mdma";
+			reg = <0x52000000 0x1000>;
+			interrupts = <122>;
+			clocks = <&timer_clk>;
+			#dma-cells = <5>;
+			dma-channels = <16>;
+			dma-requests = <32>;
+		};
 	};
 };
 
-- 
2.7.4

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