[PATCH] mtd: rawnand: arasan: Use the right DMA mask

Miquel Raynal miquel.raynal at bootlin.com
Thu May 27 01:45:48 PDT 2021


Xilinx ZynqMP SoC and the Arasan controller support 64-bit DMA
addressing. Define the right mask otherwise the default is 32
and some accesses may overflow the default mask.

Reported-by: Jorge Courett <jorge.courett at gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
---
 drivers/mtd/nand/raw/arasan-nand-controller.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/nand/raw/arasan-nand-controller.c b/drivers/mtd/nand/raw/arasan-nand-controller.c
index 97e5a336a760..6e8d33173c6b 100644
--- a/drivers/mtd/nand/raw/arasan-nand-controller.c
+++ b/drivers/mtd/nand/raw/arasan-nand-controller.c
@@ -1398,6 +1398,10 @@ static int anfc_probe(struct platform_device *pdev)
 	if (ret)
 		goto disable_controller_clk;
 
+	ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
+	if (ret)
+		return ret;
+
 	ret = anfc_parse_cs(nfc);
 	if (ret)
 		goto disable_bus_clk;
-- 
2.27.0




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