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- reorganize common Raspberry Pi drivers under the device framework
- add the Raspberry Pi 5 BSP, configuration and documentation
- add BCM2712 and DesignWare AXI DMA controller support
- distinguish BCM2712 DMA32 and DMA40 channels by channel mask
- restore DesignWare AXI DMA enable bits after controller reset
- support a shared AXI maximum burst length across DMA channels
Signed-off-by: GuEe-GUI <[email protected]>
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* [dm][dma] update DMA interface
Extend DMA mapping to honor OFW dma-ranges even
when no reserved memory pool is present,
and add PCI host-bridge DMA-region translation for PCI devices.
Prefer 32-bit-addressable allocations for translated devices,
improve pool allocation fallbacks and synchronization,
and establish a linear mapping for installed DMA pools when possible.
Signed-off-by: GuEe-GUI <[email protected]>
* [dm][dma] fixup PL330 work flow
Fix PL330 channel allocation so device-tree cells
select peripheral request lines rather than execution channels.
Generate proper peripheral DMA microcode using DMAWFP, DMALDP, DMASTP, and DMAFLUSHP,
encode burst lengths correctly,
honor transfer direction and non-secure attributes,
and allocate microcode from DMA-coherent memory.
Signed-off-by: GuEe-GUI <[email protected]>
* style: format code with clang-format
* style: format complete changed files with clang-format
* drivers: dma: fix diagnostic format types
* style: format DMA changes for current master
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Signed-off-by: GuEe-GUI <[email protected]>
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* Append WT attribute.
* Change the API with pool size only.
* Add address mask for DMA
* Change DMA lock to mutex
* Add pause callback for DMA engine driver
* Add DMA Engine test
* Add ARM PL330 DMA Engine driver
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The first arg is src, then dst.
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Signed-off-by: GuEe-GUI <[email protected]>
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Work together can make DMA engine device drivers
knows how want a chan easy.
Signed-off-by: GuEe-GUI <[email protected]>
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Signed-off-by: GuEe-GUI <[email protected]>
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1. DMA pool management for platform.
2. DMA engine driver API.
Signed-off-by: GuEe-GUI <[email protected]>
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