| From: |
| Pierre-Yves MORDRET <pierre-yves.mordret-AT-st.com> |
| To: |
| Vinod Koul <vinod.koul-AT-intel.com>, Rob Herring <robh+dt-AT-kernel.org>, Mark Rutland <mark.rutland-AT-arm.com>, Maxime Coquelin <mcoquelin.stm32-AT-gmail.com>, Alexandre Torgue <alexandre.torgue-AT-st.com>, Russell King <linux-AT-armlinux.org.uk>, Dan Williams <dan.j.williams-AT-intel.com>, "M'boumba Cedric Madianga" <cedric.madianga-AT-gmail.com>, Fabrice GASNIER <fabrice.gasnier-AT-st.com>, Herbert Xu <herbert-AT-gondor.apana.org.au>, Fabien DESSENNE <fabien.dessenne-AT-st.com>, Amelie Delaunay <amelie.delaunay-AT-st.com>, Pierre-Yves MORDRET <pierre-yves.mordret-AT-st.com>, <dmaengine-AT-vger.kernel.org>, <devicetree-AT-vger.kernel.org>, <linux-arm-kernel-AT-lists.infradead.org>, <linux-kernel-AT-vger.kernel.org> |
| Subject: |
| [PATCH v4 0/4] Add STM32 MDMA driver |
| Date: |
| Fri, 25 Aug 2017 16:31:02 +0200 |
| Message-ID: |
| <1503671466-32029-1-git-send-email-pierre-yves.mordret@st.com> |
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:
v4:
* Add safe getter/setter macros
* forbid DMA preparation in cyclic mode yet
* Optimize burst and memory width for memcpy
* replace of_property_xx by device_property_xx
v3:
* Update header template
* Unsigned expression compared with zero
* Rework stm32_mdma_get_max_width
* moved to src/dst case where they are used in set_xfer
* Change of_property_* with device_property_*
* Add dev_warn whether default value is used
* Indentation
* Add MODULE_*
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 | 1618 ++++++++++++++++++++
6 files changed, 1736 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma/stm32-mdma.txt
create mode 100644 drivers/dma/stm32-mdma.c
--
2.7.4
