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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/serial/renesas,hscif.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Renesas High Speed Serial Communication Interface with FIFO (HSCIF)
maintainers:
- Geert Uytterhoeven <geert+renesas@glider.be>
allOf:
- $ref: serial.yaml#
properties:
compatible:
oneOf:
- items:
- enum:
- renesas,hscif-r8a7778 # R-Car M1
- renesas,hscif-r8a7779 # R-Car H1
- const: renesas,rcar-gen1-hscif # R-Car Gen1
- const: renesas,hscif # generic HSCIF compatible UART
- items:
- enum:
- renesas,hscif-r8a7742 # RZ/G1H
- renesas,hscif-r8a7743 # RZ/G1M
- renesas,hscif-r8a7744 # RZ/G1N
- renesas,hscif-r8a7745 # RZ/G1E
- renesas,hscif-r8a77470 # RZ/G1C
- renesas,hscif-r8a7790 # R-Car H2
- renesas,hscif-r8a7791 # R-Car M2-W
- renesas,hscif-r8a7792 # R-Car V2H
- renesas,hscif-r8a7793 # R-Car M2-N
- renesas,hscif-r8a7794 # R-Car E2
- const: renesas,rcar-gen2-hscif # R-Car Gen2 and RZ/G1
- const: renesas,hscif # generic HSCIF compatible UART
- items:
- enum:
- renesas,hscif-r8a774a1 # RZ/G2M
- renesas,hscif-r8a774b1 # RZ/G2N
- renesas,hscif-r8a774c0 # RZ/G2E
- renesas,hscif-r8a774e1 # RZ/G2H
- renesas,hscif-r8a7795 # R-Car H3
- renesas,hscif-r8a7796 # R-Car M3-W
- renesas,hscif-r8a77961 # R-Car M3-W+
- renesas,hscif-r8a77965 # R-Car M3-N
- renesas,hscif-r8a77970 # R-Car V3M
- renesas,hscif-r8a77980 # R-Car V3H
- renesas,hscif-r8a77990 # R-Car E3
- renesas,hscif-r8a77995 # R-Car D3
- const: renesas,rcar-gen3-hscif # R-Car Gen3 and RZ/G2
- const: renesas,hscif # generic HSCIF compatible UART
- items:
- enum:
- renesas,hscif-r8a779a0 # R-Car V3U
- renesas,hscif-r8a779f0 # R-Car S4-8
- renesas,hscif-r8a779g0 # R-Car V4H
- renesas,hscif-r8a779h0 # R-Car V4M
- const: renesas,rcar-gen4-hscif # R-Car Gen4
- const: renesas,hscif # generic HSCIF compatible UART
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
minItems: 1
maxItems: 4
clock-names:
minItems: 1
maxItems: 4
items:
enum:
- fck # UART functional clock
- hsck # 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:
minItems: 2
maxItems: 4
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-hscif
- renesas,rcar-gen3-hscif
- renesas,rcar-gen4-hscif
then:
required:
- resets
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/r8a7795-cpg-mssr.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/power/r8a7795-sysc.h>
aliases {
serial1 = &hscif1;
};
hscif1: serial@e6550000 {
compatible = "renesas,hscif-r8a7795", "renesas,rcar-gen3-hscif",
"renesas,hscif";
reg = <0xe6550000 96>;
interrupts = <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 519>, <&cpg CPG_CORE R8A7795_CLK_S3D1>,
<&scif_clk>;
clock-names = "fck", "brg_int", "scif_clk";
dmas = <&dmac1 0x33>, <&dmac1 0x32>, <&dmac2 0x33>, <&dmac2 0x32>;
dma-names = "tx", "rx", "tx", "rx";
power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
resets = <&cpg 519>;
uart-has-rtscts;
};
|
