ARM: tegra: Add memory controller support for Tegra30

Collapses the old memory-controller and IOMMU device tree nodes into a
single node to more accurately describe the hardware.

While this is an incompatible change there are no users of the IOMMU on
Tegra, even though a driver has existed for some time.

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 aa6ccea..fa7e5b6 100644 (file)
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -623,23 +623,15 @@
                clock-names = "pclk", "clk32k_in";
        };
 
-       memory-controller@7000f000 {
+       mc: memory-controller@7000f000 {
                compatible = "nvidia,tegra30-mc";
-               reg = <0x7000f000 0x010
-                      0x7000f03c 0x1b4
-                      0x7000f200 0x028
-                      0x7000f284 0x17c>;
+               reg = <0x7000f000 0x400>;
+               clocks = <&tegra_car TEGRA30_CLK_MC>;
+               clock-names = "mc";
+
                interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
-       };
 
-       iommu@7000f010 {
-               compatible = "nvidia,tegra30-smmu";
-               reg = <0x7000f010 0x02c
-                      0x7000f1f0 0x010
-                      0x7000f228 0x05c>;
-               nvidia,#asids = <4>;            /* # of ASIDs */
-               dma-window = <0 0x40000000>;    /* IOVA start & length */
-               nvidia,ahb = <&ahb>;
+               #iommu-cells = <1>;
        };
 
        fuse@7000f800 {