ARM: tegra: dt: limit dc and gpu iova to 4GB

iova cannot go beyond 4GB.

iova for gpu can go beyond 4GB on T210 but for now, setting
the limit to 4GB only.

Bug 1463797

Change-Id: Iaf924b457e3aaca44d0345b21d8958d90b5d3a5a
Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com>
Reviewed-on: http://git-master/r/481933
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
Tested-by: Krishna Reddy <vdumpa@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra124-soc.dtsi b/arch/arm/boot/dts/tegra124-soc.dtsi
index 578aefb9bfab8651d6ecca0e73491dd7734d6e8d..273d32fe1cd69a864fb077c8446863cec15947a3 100644 (file)
--- a/arch/arm/boot/dts/tegra124-soc.dtsi
+++ b/arch/arm/boot/dts/tegra124-soc.dtsi
@@ -123,14 +123,14 @@
                        };
                        dc_as: dc {
                                iova-start = <0x0 0x00010000>;
-                               iova-size = <0x0 0xFFFFFFFF>;
+                               iova-size = <0x0 0xFFFEFFFF>;
                                alignment = <0xFFFFF>;
                                num-pf-page = <0>;
                                gap-page = <0>;
                        };
                        gpu_as: gpu {
                                iova-start = <0x0 0x00100000>;
-                               iova-size = <0x0 0xFFFFFFFF>;
+                               iova-size = <0x0 0xFFEFFFFF>;
                                alignment = <0xFFFFF>;
                                num-pf-page = <0>;
                                gap-page = <0>;