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fpga: versal: Add support for 44-bit DMA operations
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The existing implementation support only 32-bit DMA operation.
So, it fails to load the bitstream for the high DDR designs(Beyond 4GB).
To fix this issue update the DMA mask handling logic to support 44-bit
DMA operations.

Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20231003071409.4165149-1-nava.kishore.manne@amd.com
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
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Nava kishore Manne authored and Xu Yilun committed Oct 16, 2023
1 parent 3b08f52 commit d79eed2
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion drivers/fpga/versal-fpga.c
Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,7 @@ static int versal_fpga_probe(struct platform_device *pdev)
struct fpga_manager *mgr;
int ret;

ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(44));
if (ret < 0) {
dev_err(dev, "no usable DMA configuration\n");
return ret;
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