ARM: tegra: Add IRAM node on Tegra30

IRAM is a static RAM that consists of four contiguous 64 KiB blocks,
it is currently used to store CPU resume code, utilized by the video
decoder engine and could be used as a general-purpose fast memory.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index c3e9f1e..833d972 100644 (file)
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -91,6 +91,14 @@
                };
        };
 
+       iram@40000000 {
+               compatible = "mmio-sram";
+               reg = <0x40000000 0x40000>;
+               #address-cells = <1>;
+               #size-cells = <1>;
+               ranges = <0 0x40000000 0x40000>;
+       };
+
        host1x@50000000 {
                compatible = "nvidia,tegra30-host1x", "simple-bus";
                reg = <0x50000000 0x00024000>;