mtd: rawnand: arasan: Use the right DMA mask

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@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Jorge Courett <jorge.courett@gmail.com>
Link: https://lore.kernel.org/linux-mtd/20210527084548.208429-1-miquel.raynal@bootlin.com

diff --git a/drivers/mtd/nand/raw/arasan-nand-controller.c b/drivers/mtd/nand/raw/arasan-nand-controller.c
index 97e5a33..f9b5b14 100644 (file)
--- 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)
+               goto disable_bus_clk;
+
        ret = anfc_parse_cs(nfc);
        if (ret)
                goto disable_bus_clk;