arm64: dts: renesas: r8a774b1: Tie SYS-DMAC to IPMMU-DS0/1

Hook up r8a774b1 DMAC nodes to the IPMMUs. In particular SYS-DMAC0
gets tied to IPMMU-DS0, and SYS-DMAC1 and SYS-DMAC2 get tied to IPMMU-DS1.

Based on work for the r8a7796 by Magnus Damm.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Link: https://lore.kernel.org/r/1569313375-53428-7-git-send-email-biju.das@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/r8a774b1.dtsi b/arch/arm64/boot/dts/renesas/r8a774b1.dtsi
index c92550e..1e00aeb 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a774b1.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a774b1.dtsi
@@ -712,6 +712,14 @@
                        resets = <&cpg 219>;
                        #dma-cells = <1>;
                        dma-channels = <16>;
+                       iommus = <&ipmmu_ds0 0>, <&ipmmu_ds0 1>,
+                              <&ipmmu_ds0 2>, <&ipmmu_ds0 3>,
+                              <&ipmmu_ds0 4>, <&ipmmu_ds0 5>,
+                              <&ipmmu_ds0 6>, <&ipmmu_ds0 7>,
+                              <&ipmmu_ds0 8>, <&ipmmu_ds0 9>,
+                              <&ipmmu_ds0 10>, <&ipmmu_ds0 11>,
+                              <&ipmmu_ds0 12>, <&ipmmu_ds0 13>,
+                              <&ipmmu_ds0 14>, <&ipmmu_ds0 15>;
                };
 
                dmac1: dma-controller@e7300000 {
@@ -746,6 +754,14 @@
                        resets = <&cpg 218>;
                        #dma-cells = <1>;
                        dma-channels = <16>;
+                       iommus = <&ipmmu_ds1 0>, <&ipmmu_ds1 1>,
+                              <&ipmmu_ds1 2>, <&ipmmu_ds1 3>,
+                              <&ipmmu_ds1 4>, <&ipmmu_ds1 5>,
+                              <&ipmmu_ds1 6>, <&ipmmu_ds1 7>,
+                              <&ipmmu_ds1 8>, <&ipmmu_ds1 9>,
+                              <&ipmmu_ds1 10>, <&ipmmu_ds1 11>,
+                              <&ipmmu_ds1 12>, <&ipmmu_ds1 13>,
+                              <&ipmmu_ds1 14>, <&ipmmu_ds1 15>;
                };
 
                dmac2: dma-controller@e7310000 {
@@ -780,6 +796,14 @@
                        resets = <&cpg 217>;
                        #dma-cells = <1>;
                        dma-channels = <16>;
+                       iommus = <&ipmmu_ds1 16>, <&ipmmu_ds1 17>,
+                              <&ipmmu_ds1 18>, <&ipmmu_ds1 19>,
+                              <&ipmmu_ds1 20>, <&ipmmu_ds1 21>,
+                              <&ipmmu_ds1 22>, <&ipmmu_ds1 23>,
+                              <&ipmmu_ds1 24>, <&ipmmu_ds1 25>,
+                              <&ipmmu_ds1 26>, <&ipmmu_ds1 27>,
+                              <&ipmmu_ds1 28>, <&ipmmu_ds1 29>,
+                              <&ipmmu_ds1 30>, <&ipmmu_ds1 31>;
                };
 
                ipmmu_ds0: mmu@e6740000 {