git.openwrt.org Git - openwrt/staging/981213.git/blob

   1 From 612616e6381929e7f9e303f8b8ad3655cc101516 Mon Sep 17 00:00:00 2001
   2 From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
   3 Date: Mon, 19 Jun 2023 06:09:33 +0200
   4 Subject: [PATCH 1/9] dt-bindings: clock: add mtmips SoCs system controller
   5
   6 Adds device tree binding documentation for system controller node present
   7 in Mediatek MIPS and Ralink SOCs. This node is a clock and reset provider
   8 for the rest of the world. This covers RT2880, RT3050, RT3052, RT3350,
   9 RT3883, RT5350, MT7620, MT7628 and MT7688 SoCs.
  10
  11 Reviewed-by: Rob Herring <robh@kernel.org>
  12 Acked-by: Stephen Boyd <sboyd@kernel.org>
  13 Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
  14 Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
  15 ---
  16  .../bindings/clock/mediatek,mtmips-sysc.yaml       | 64 ++++++++++++++++++++++
  17  1 file changed, 64 insertions(+)
  18  create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml
  19
  20 --- /dev/null
  21 +++ b/Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml
  22 @@ -0,0 +1,64 @@
  23 +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  24 +%YAML 1.2
  25 +---
  26 +$id: http://devicetree.org/schemas/clock/mediatek,mtmips-sysc.yaml#
  27 +$schema: http://devicetree.org/meta-schemas/core.yaml#
  28 +
  29 +title: MTMIPS SoCs System Controller
  30 +
  31 +maintainers:
  32 +  - Sergio Paracuellos <sergio.paracuellos@gmail.com>
  33 +
  34 +description: |
  35 +  MediaTek MIPS and Ralink SoCs provides a system controller to allow
  36 +  to access to system control registers. These registers include clock
  37 +  and reset related ones so this node is both clock and reset provider
  38 +  for the rest of the world.
  39 +
  40 +  These SoCs have an XTAL from where the cpu clock is
  41 +  provided as well as derived clocks for the bus and the peripherals.
  42 +
  43 +properties:
  44 +  compatible:
  45 +    items:
  46 +      - enum:
  47 +          - ralink,mt7620-sysc
  48 +          - ralink,mt7628-sysc
  49 +          - ralink,mt7688-sysc
  50 +          - ralink,rt2880-sysc
  51 +          - ralink,rt3050-sysc
  52 +          - ralink,rt3052-sysc
  53 +          - ralink,rt3352-sysc
  54 +          - ralink,rt3883-sysc
  55 +          - ralink,rt5350-sysc
  56 +      - const: syscon
  57 +
  58 +  reg:
  59 +    maxItems: 1
  60 +
  61 +  '#clock-cells':
  62 +    description:
  63 +      The first cell indicates the clock number.
  64 +    const: 1
  65 +
  66 +  '#reset-cells':
  67 +    description:
  68 +      The first cell indicates the reset bit within the register.
  69 +    const: 1
  70 +
  71 +required:
  72 +  - compatible
  73 +  - reg
  74 +  - '#clock-cells'
  75 +  - '#reset-cells'
  76 +
  77 +additionalProperties: false
  78 +
  79 +examples:
  80 +  - |
  81 +    syscon@0 {
  82 +      compatible = "ralink,rt5350-sysc", "syscon";
  83 +      reg = <0x0 0x100>;
  84 +      #clock-cells = <1>;
  85 +      #reset-cells = <1>;
  86 +    };