'dma-ranges' at the top level doesn't make sense. 'dma-ranges' implies
there is a parent bus node with '#address-cells' and '#size-cells' which
is impossible here.
Likely this translation needs to be moved down to sub-nodes that need
it.
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
---
This probably worked due to bugs in dma-ranges address translations (or
lack of).
AFAICT, only PCI needs dma-ranges. The TRM says inbound PCI addresses
are 1:1. So a translation from child address 0x80000000 to cpu address
0x0 seems wrong. The v3 PCI driver also fails to look at parent nodes
for dma-ranges.
arch/arm/boot/dts/integratorap.dts | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm/boot/dts/integratorap.dts b/arch/arm/boot/dts/integratorap.dts
index 94d2ff9836d0..198d66181c50 100644
--- a/arch/arm/boot/dts/integratorap.dts
+++ b/arch/arm/boot/dts/integratorap.dts
@@ -9,7 +9,6 @@
/ {
model = "ARM Integrator/AP";
compatible = "arm,integrator-ap";
- dma-ranges = <0x80000000 0x0 0x80000000>;
cpus {
#address-cells = <1>;
--
2.20.1
