Add the device nodes for all MSIOF SPI controllers, incl. clocks, power
domain, dma, and reset properties.
Due to a hardware erratum on R-Car H3 ES1.x, using MSIOF for SPI is only
supported on ES2.0 and later.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
Tested on r8a7795/salvator-xs with MSIOF3(A) connected to a HD44780
character LCD through a pair of 74HCT595 shift registers.
v3:
- Add resets properties,
- Add family-specific compatible values,
- Add link to second DMA controller for MSIOF[01],
v2:
- Rebased,
- Switch to final CPG/MSSR bindings,
- Change one-line summary prefix to match current arm-soc practices.
---
arch/arm64/boot/dts/renesas/r8a7795.dtsi | 62 ++++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index 6f5130766a212d6d..507d8ad07aaf9007 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -899,6 +899,68 @@
status = "disabled";
};
+ msiof0: spi@e6e90000 {
+ compatible = "renesas,msiof-r8a7795",
+ "renesas,rcar-gen3-msiof";
+ reg = <0 0xe6e90000 0 0x0064>;
+ interrupts = <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 211>;
+ dmas = <&dmac1 0x41>, <&dmac1 0x40>,
+ <&dmac2 0x41>, <&dmac2 0x40>;
+ dma-names = "tx", "rx", "tx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 211>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ msiof1: spi@e6ea0000 {
+ compatible = "renesas,msiof-r8a7795",
+ "renesas,rcar-gen3-msiof";
+ reg = <0 0xe6ea0000 0 0x0064>;
+ interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 210>;
+ dmas = <&dmac1 0x43>, <&dmac1 0x42>,
+ <&dmac2 0x43>, <&dmac2 0x42>;
+ dma-names = "tx", "rx", "tx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 210>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ msiof2: spi@e6c00000 {
+ compatible = "renesas,msiof-r8a7795",
+ "renesas,rcar-gen3-msiof";
+ reg = <0 0xe6c00000 0 0x0064>;
+ interrupts = <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 209>;
+ dmas = <&dmac0 0x45>, <&dmac0 0x44>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 209>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ msiof3: spi@e6c10000 {
+ compatible = "renesas,msiof-r8a7795",
+ "renesas,rcar-gen3-msiof";
+ reg = <0 0xe6c10000 0 0x0064>;
+ interrupts = <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 208>;
+ dmas = <&dmac0 0x47>, <&dmac0 0x46>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 208>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
scif0: serial@e6e60000 {
compatible = "renesas,scif-r8a7795",
"renesas,rcar-gen3-scif", "renesas,scif";
--
2.7.4
