arm64: dts: renesas: r8a779h0: Add remaining HSCIF nodes

Add device nodes for the remaining High Speed Serial Communication
Interfaces with FIFO (HSCIF) on the Renesas R-Car V4M (R8A779H0) SoC,
including DMA support and the optional external clock source used by
HSCIF2.

Based on a patch in the BSP by Nghia Nguyen.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/b39f081db01fde2d1bf83a193f25b295cfeb002d.1709741303.git.geert+renesas@glider.be

diff --git a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
index a01929231e08fa30bcadd9619d7b1966b85c988c..4bad906bf2cb155b4eab41f0cdc731dc61c2c5dd 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
@@ -144,13 +144,19 @@
                method = "smc";
        };
 
-       /* External SCIF clock - to be overridden by boards that provide it */
+       /* External SCIF clocks - to be overridden by boards that provide them */
        scif_clk: scif-clk {
                compatible = "fixed-clock";
                #clock-cells = <0>;
                clock-frequency = <0>;
        };
 
+       scif_clk2: scif-clk2 {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <0>;
+       };
+
        soc: soc {
                compatible = "simple-bus";
                interrupt-parent = <&gic>;
@@ -413,6 +419,57 @@
                        status = "disabled";
                };
 
+               hscif1: serial@e6550000 {
+                       compatible = "renesas,hscif-r8a779h0",
+                                    "renesas,rcar-gen4-hscif", "renesas,hscif";
+                       reg = <0 0xe6550000 0 0x60>;
+                       interrupts = <GIC_SPI 247 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&cpg CPG_MOD 515>,
+                                <&cpg CPG_CORE R8A779H0_CLK_SASYNCPERD1>,
+                                <&scif_clk>;
+                       clock-names = "fck", "brg_int", "scif_clk";
+                       power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
+                       resets = <&cpg 515>;
+                       dmas = <&dmac1 0x33>, <&dmac1 0x32>,
+                              <&dmac2 0x33>, <&dmac2 0x32>;
+                       dma-names = "tx", "rx", "tx", "rx";
+                       status = "disabled";
+               };
+
+               hscif2: serial@e6560000 {
+                       compatible = "renesas,hscif-r8a779h0",
+                                    "renesas,rcar-gen4-hscif", "renesas,hscif";
+                       reg = <0 0xe6560000 0 0x60>;
+                       interrupts = <GIC_SPI 248 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&cpg CPG_MOD 516>,
+                                <&cpg CPG_CORE R8A779H0_CLK_SASYNCPERD1>,
+                                <&scif_clk2>;
+                       clock-names = "fck", "brg_int", "scif_clk";
+                       power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
+                       resets = <&cpg 516>;
+                       dmas = <&dmac1 0x35>, <&dmac1 0x34>,
+                              <&dmac2 0x35>, <&dmac2 0x34>;
+                       dma-names = "tx", "rx", "tx", "rx";
+                       status = "disabled";
+               };
+
+               hscif3: serial@e66a0000 {
+                       compatible = "renesas,hscif-r8a779h0",
+                                    "renesas,rcar-gen4-hscif", "renesas,hscif";
+                       reg = <0 0xe66a0000 0 0x60>;
+                       interrupts = <GIC_SPI 249 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&cpg CPG_MOD 517>,
+                                <&cpg CPG_CORE R8A779H0_CLK_SASYNCPERD1>,
+                                <&scif_clk>;
+                       clock-names = "fck", "brg_int", "scif_clk";
+                       power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
+                       resets = <&cpg 517>;
+                       dmas = <&dmac1 0x37>, <&dmac1 0x36>,
+                              <&dmac2 0x37>, <&dmac2 0x36>;
+                       dma-names = "tx", "rx", "tx", "rx";
+                       status = "disabled";
+               };
+
                avb0: ethernet@e6800000 {
                        compatible = "renesas,etheravb-r8a779h0",
                                     "renesas,etheravb-rcar-gen4";