As per Marvell's Armada-AP806 erratum #582743 the bus can't handle 64bit
MMIO accesses.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulie...@suse.de>
---
 arch/arm64/boot/dts/marvell/armada-ap80x.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-ap80x.dtsi 
b/arch/arm64/boot/dts/marvell/armada-ap80x.dtsi
index 6614472100c2..a009458edf24 100644
--- a/arch/arm64/boot/dts/marvell/armada-ap80x.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-ap80x.dtsi
@@ -54,6 +54,7 @@ config-space@f0000000 {
                        #address-cells = <1>;
                        #size-cells = <1>;
                        compatible = "simple-bus";
+                       64bit-mmio-broken;
                        ranges = <0x0 0x0 0xf0000000 0x1000000>;
 
                        smmu: iommu@5000000 {
-- 
2.30.1

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