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4 STM32 DMA-MDMA chaining11 This document describes the STM32 DMA-MDMA chaining feature. But before going17 STM32MP1 SoCs embed both STM32 DMA and STM32 MDMA controllers. STM32 DMA33 **STM32 MDMA**35 STM32 MDMA (Master DMA) is mainly used to manage direct data transfers between38 interfaces for AHB peripherals, while the STM32 MDMA acts as a second level39 DMA with better performance. As a AXI/AHB master, STM32 MDMA can take control46 STM32 DMA-MDMA chaining feature relies on the strengths of STM32 DMA and47 STM32 MDMA controllers.52 counter is automatically reloaded. This allows the SW or the STM32 MDMA to[all …]
4 $id: http://devicetree.org/schemas/dma/stm32/st,stm32-mdma.yaml#7 title: STMicroelectronics STM32 MDMA Controller10 The STM32 MDMA is a general-purpose direct memory access controller capable of12 DMA clients connected to the STM32 MDMA controller must use the format14 a phandle to the MDMA controller plus the following five integer cells:43 0x00: Each MDMA request triggers a buffer transfer (max 128 bytes)44 0x1: Each MDMA request triggers a block transfer (max 64K bytes)45 0x2: Each MDMA request triggers a repeated block transfer46 0x3: Each MDMA request triggers a linked list transfer48 if no HW ack signal is used by the MDMA client[all …]
24 - ingenic,jz4760-mdma27 - ingenic,jz4760b-mdma
63 stm32/stm32-dma-mdma-chaining
28 instance number should be 0 for DSP MDMA MMUs and 1 for