From d79eed22ba97c3031b2ef86f8b7ed0be2da5667d Mon Sep 17 00:00:00 2001 From: Nava kishore Manne Date: Tue, 3 Oct 2023 12:44:09 +0530 Subject: [PATCH] fpga: versal: Add support for 44-bit DMA operations 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 Reviewed-by: Radhey Shyam Pandey Acked-by: Xu Yilun Link: https://lore.kernel.org/r/20231003071409.4165149-1-nava.kishore.manne@amd.com Signed-off-by: Xu Yilun --- 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;