On Mon, May 21, 2018 at 11:45:01PM +0900, Magnus Damm wrote:
> From: Magnus Damm <damm+renesas@xxxxxxxxxxxxx>
>
> Add IPMMU device nodes for the R-Car V3H SoC aka r8a77980.
>
> The r8a77980 IPMMU is quite similar to r8a77970 however VC0
> has been added. The IMSSTR bit assignment has also been
> reworked. Power domains are also quite different however the
> the documentation is rather unclear about this topic.
>
> Until we know better VC0 gets assigned to R8A77980_PD_ALWAYS_ON.
>
> Signed-off-by: Magnus Damm <damm+renesas@xxxxxxxxxxxxx>
> ---
>
> Developed on top of renesas-devel-20180518-v4.17-rc5
>
> arch/arm64/boot/dts/renesas/r8a77980.dtsi | 49 +++++++++++++++++++++++++++++
> 1 file changed, 49 insertions(+)
>
> --- 0001/arch/arm64/boot/dts/renesas/r8a77980.dtsi
> +++ work/arch/arm64/boot/dts/renesas/r8a77980.dtsi 2018-05-21 22:31:52.460607110 +0900
> @@ -387,6 +387,55 @@
> dma-channels = <16>;
> };
>
> + ipmmu_ds1: mmu@e7740000 {
> + compatible = "renesas,ipmmu-r8a77980";
> + reg = <0 0xe7740000 0 0x1000>;
> + renesas,ipmmu-main = <&ipmmu_mm 0>;
> + power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
> + #iommu-cells = <1>;
> + };
> +
> + ipmmu_ir: mmu@ff8b0000 {
> + compatible = "renesas,ipmmu-r8a77980";
> + reg = <0 0xff8b0000 0 0x1000>;
> + renesas,ipmmu-main = <&ipmmu_mm 3>;
> + power-domains = <&sysc R8A77980_PD_A3IR>;
> + #iommu-cells = <1>;
> + };
> +
> + ipmmu_mm: mmu@e67b0000 {
> + compatible = "renesas,ipmmu-r8a77980";
> + reg = <0 0xe67b0000 0 0x1000>;
> + interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 197 IRQ_TYPE_LEVEL_HIGH>;
> + power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
> + #iommu-cells = <1>;
> + };
> +
> + ipmmu_rt: mmu@ffc80000 {
> + compatible = "renesas,ipmmu-r8a77980";
> + reg = <0 0xffc80000 0 0x1000>;
> + renesas,ipmmu-main = <&ipmmu_mm 10>;
> + power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
> + #iommu-cells = <1>;
> + };
> +
> + ipmmu_vc0: mmu@fe6b0000 {
> + compatible = "renesas,ipmmu-r8a77980";
> + reg = <0 0xfe6b0000 0 0x1000>;
> + renesas,ipmmu-main = <&ipmmu_mm 12>;
> + power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
> + #iommu-cells = <1>;
> + };
> +
> + ipmmu_vi0: mmu@febd0000 {
> + compatible = "renesas,ipmmu-r8a77980";
> + reg = <0 0xfebd0000 0 0x1000>;
> + renesas,ipmmu-main = <&ipmmu_mm 14>;
> + power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
> + #iommu-cells = <1>;
> + };
> +
nit: I believe the IPMMU nodes should go above the AVB rather than the
MMC node to preserve the current node sorting order of:
1) bus address
2) IP block
3) alphabetical
> mmc0: mmc@ee140000 {
> compatible = "renesas,sdhi-r8a77980",
> "renesas,rcar-gen3-sdhi";
>
