[PATCH 0/3] Enable DMA on STM32 MCU based on cortex-M7
From: Alexandre Torgue <hidden>
Date: 2017-12-12 18:02:23
Also in:
linux-devicetree
From: Alexandre Torgue <hidden>
Date: 2017-12-12 18:02:23
Also in:
linux-devicetree
This series enable DMA on several STM32 MCU based on cortex-M7. To make it possible, a dedicated dma pool memory area has to be created. This patchset activate also ARM_MPU flag which will configure MPU (Memory Protection Unit) according to devicetree information (mem and dma-pool). Note that on cortex-M7 DMA has to use a NO cache-able memory region. Regards Alex Alexandre Torgue (3): ARM: dts: stm32: add DMA memory pool on MCU which embed a cortex-M7 ARM: configs: stm32: Enable ARM_MPU ARM: dts: stm32: enable dma on MCU which embed a cortex-M7 arch/arm/boot/dts/stm32746g-eval.dts | 21 +++++++++++++++++++++ arch/arm/boot/dts/stm32f769-disco.dts | 21 +++++++++++++++++++++ arch/arm/boot/dts/stm32h743i-disco.dts | 21 +++++++++++++++++++++ arch/arm/boot/dts/stm32h743i-eval.dts | 21 +++++++++++++++++++++ arch/arm/configs/stm32_defconfig | 1 + 5 files changed, 85 insertions(+) -- 2.7.4