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drivers: dma: sam: add support for sama7g5 DMA Controller (XDMAC) #92816

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drivers: dma: sam: add support for sama7g5 DMA Controller (XDMAC) #92816

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32142c0
dts: arm: microchip: sama7g5: add DMA Controller (XDMAC) support
TonyHan11 Apr 17, 2025
2c50135
soc: microchip: sam: enable CACHE_MANAGEMENT for sama7g5 series
TonyHan11 Jun 20, 2025
80de98d
soc: microchip: sam: update MMU for sama7g5 XDMAC
TonyHan11 Jun 20, 2025
e720577
drivers: dma: sam: update to support multiple DMA instances
TonyHan11 Jul 8, 2025
20ac54e
drivers: dma: sam: support different num of channels for each instance
TonyHan11 Jul 8, 2025
ff0a578
drivers: dma: sam: update to support sama7g5 XDMAC peripheral
TonyHan11 Jul 8, 2025
a992ab9
drivers: dma: sam: add DMA channel suspend and resume support
TonyHan11 Jul 8, 2025
6e1765d
drivers: dma: sam: implement finite state machine for DMA channel
TonyHan11 Jul 16, 2025
3d42ac5
boards: microchip: sama7g5: add DMA to sama7g54-ek dts and yaml files
TonyHan11 Apr 17, 2025
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12 changes: 12 additions & 0 deletions boards/microchip/sam/sama7g54_ek/sama7g54_ek.dts
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Original file line number Diff line number Diff line change
Expand Up @@ -78,6 +78,18 @@
};
};

&dma0 {
status = "okay";
};

&dma1 {
status = "okay";
};

&dma2 {
status = "okay";
};

&flx3 {
mchp,flexcom-mode = <SAM_FLEXCOM_MODE_USART>;
status = "okay";
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1 change: 1 addition & 0 deletions boards/microchip/sam/sama7g54_ek/sama7g54_ek.yaml
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Expand Up @@ -9,6 +9,7 @@ toolchain:
- zephyr
ram: 128
supported:
- dma
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Check the tests to make sure board fulfill requirements to run the tests.
For instance
INFO - 22/1005 sama7g54_ek/sama7g54 drivers.dma.loop_transfer FILTERED (runtime filter)
Review all tests and some samples that uses DMA.

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tests/drivers/dma/chan_blen_transfer and tests/drivers/dma/loop_transfer test failed due to cache coherency is not handled by the tests (if cache is disabled it's OK). According to https://docs.zephyrproject.org/latest/hardware/peripherals/dma.html, the DMA drivers in general do not handle cache coherency.

- sdhc
- shell
- uart
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