Messages in this thread Patch in this message | | | From | Nava kishore Manne <> | Subject | [PATCH] fpga: versal: Add support for 44-bit DMA operations | Date | Tue, 3 Oct 2023 12:44:09 +0530 |
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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> --- drivers/fpga/versal-fpga.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/fpga/versal-fpga.c b/drivers/fpga/versal-fpga.c index e1601b3a345b..3710e8f01be2 100644 --- a/drivers/fpga/versal-fpga.c +++ b/drivers/fpga/versal-fpga.c @@ -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; -- 2.25.1
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