summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/serial/renesas,scif.yaml
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/serial/renesas,scif.yaml')
-rw-r--r--Documentation/devicetree/bindings/serial/renesas,scif.yaml176
1 files changed, 176 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/renesas,scif.yaml b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
new file mode 100644
index 000000000..dbaa04380
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
@@ -0,0 +1,176 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/serial/renesas,scif.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Renesas Serial Communication Interface with FIFO (SCIF)
+
+maintainers:
+ - Geert Uytterhoeven <geert+renesas@glider.be>
+
+allOf:
+ - $ref: serial.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - renesas,scif-r7s72100 # RZ/A1H
+ - const: renesas,scif # generic SCIF compatible UART
+
+ - items:
+ - enum:
+ - renesas,scif-r7s9210 # RZ/A2
+
+ - items:
+ - enum:
+ - renesas,scif-r8a7778 # R-Car M1
+ - renesas,scif-r8a7779 # R-Car H1
+ - const: renesas,rcar-gen1-scif # R-Car Gen1
+ - const: renesas,scif # generic SCIF compatible UART
+
+ - items:
+ - enum:
+ - renesas,scif-r8a7742 # RZ/G1H
+ - renesas,scif-r8a7743 # RZ/G1M
+ - renesas,scif-r8a7744 # RZ/G1N
+ - renesas,scif-r8a7745 # RZ/G1E
+ - renesas,scif-r8a77470 # RZ/G1C
+ - renesas,scif-r8a7790 # R-Car H2
+ - renesas,scif-r8a7791 # R-Car M2-W
+ - renesas,scif-r8a7792 # R-Car V2H
+ - renesas,scif-r8a7793 # R-Car M2-N
+ - renesas,scif-r8a7794 # R-Car E2
+ - const: renesas,rcar-gen2-scif # R-Car Gen2 and RZ/G1
+ - const: renesas,scif # generic SCIF compatible UART
+
+ - items:
+ - enum:
+ - renesas,scif-r8a774a1 # RZ/G2M
+ - renesas,scif-r8a774b1 # RZ/G2N
+ - renesas,scif-r8a774c0 # RZ/G2E
+ - renesas,scif-r8a774e1 # RZ/G2H
+ - renesas,scif-r8a7795 # R-Car H3
+ - renesas,scif-r8a7796 # R-Car M3-W
+ - renesas,scif-r8a77961 # R-Car M3-W+
+ - renesas,scif-r8a77965 # R-Car M3-N
+ - renesas,scif-r8a77970 # R-Car V3M
+ - renesas,scif-r8a77980 # R-Car V3H
+ - renesas,scif-r8a77990 # R-Car E3
+ - renesas,scif-r8a77995 # R-Car D3
+ - const: renesas,rcar-gen3-scif # R-Car Gen3 and RZ/G2
+ - const: renesas,scif # generic SCIF compatible UART
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ oneOf:
+ - items:
+ - description: A combined interrupt
+ - items:
+ - description: Error interrupt
+ - description: Receive buffer full interrupt
+ - description: Transmit buffer empty interrupt
+ - description: Break interrupt
+ - items:
+ - description: Error interrupt
+ - description: Receive buffer full interrupt
+ - description: Transmit buffer empty interrupt
+ - description: Break interrupt
+ - description: Data Ready interrupt
+ - description: Transmit End interrupt
+
+ interrupt-names:
+ oneOf:
+ - items:
+ - const: eri
+ - const: rxi
+ - const: txi
+ - const: bri
+ - items:
+ - const: eri
+ - const: rxi
+ - const: txi
+ - const: bri
+ - const: dri
+ - const: tei
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
+ items:
+ enum:
+ - fck # UART functional clock
+ - sck # optional external clock input
+ - brg_int # optional internal clock source for BRG frequency divider
+ - scif_clk # optional external clock source for BRG frequency divider
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ dmas:
+ description:
+ Must contain a list of pairs of references to DMA specifiers, one for
+ transmission, and one for reception.
+
+ dma-names:
+ minItems: 2
+ maxItems: 4
+ items:
+ enum:
+ - tx
+ - rx
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - power-domains
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,rcar-gen2-scif
+ - renesas,rcar-gen3-scif
+then:
+ required:
+ - resets
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r8a7791-cpg-mssr.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/r8a7791-sysc.h>
+ aliases {
+ serial0 = &scif0;
+ };
+
+ scif0: serial@e6e60000 {
+ compatible = "renesas,scif-r8a7791", "renesas,rcar-gen2-scif",
+ "renesas,scif";
+ reg = <0xe6e60000 64>;
+ interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 721>, <&cpg CPG_CORE R8A7791_CLK_ZS>,
+ <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ dmas = <&dmac0 0x29>, <&dmac0 0x2a>, <&dmac1 0x29>, <&dmac1 0x2a>;
+ dma-names = "tx", "rx", "tx", "rx";
+ power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
+ resets = <&cpg 721>;
+ };