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@xxxxxxxxx>
---
Changes compared to the BSP:
- Update External SCIF clock comment for multiple clocks,
- Insert "-clk" into scif2 clock node name,
- Change "scif_clk2" to "scif_clk" in clock-names for HSCIF2,
- Add DMA properies.
---
arch/arm64/boot/dts/renesas/r8a779h0.dtsi | 59 ++++++++++++++++++++++-
1 file changed, 58 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
index a01929231e08fa30..4bad906bf2cb155b 100644
--- a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
@@ -144,13 +144,19 @@ psci {
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 @@ hscif0: serial@e6540000 {
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";
--
2.34.1
