From 406171bf9a19b15dcf80173048e444ce164381fe Mon Sep 17 00:00:00 2001 From: Sagar Kadam Date: Tue, 29 Sep 2020 21:02:09 +0530 Subject: dt-bindings: fu540: prci: convert PRCI bindings to json-schema FU540-C000 SoC from SiFive has a PRCI block, here we convert the device tree bindings from txt to YAML. Signed-off-by: Sagar Kadam Link: https://lore.kernel.org/r/1601393531-2402-2-git-send-email-sagar.kadam@sifive.com Signed-off-by: Rob Herring --- .../bindings/clock/sifive/fu540-prci.txt | 46 ----------------- .../bindings/clock/sifive/fu540-prci.yaml | 60 ++++++++++++++++++++++ 2 files changed, 60 insertions(+), 46 deletions(-) delete mode 100644 Documentation/devicetree/bindings/clock/sifive/fu540-prci.txt create mode 100644 Documentation/devicetree/bindings/clock/sifive/fu540-prci.yaml (limited to 'Documentation/devicetree/bindings/clock/sifive') diff --git a/Documentation/devicetree/bindings/clock/sifive/fu540-prci.txt b/Documentation/devicetree/bindings/clock/sifive/fu540-prci.txt deleted file mode 100644 index 349808f4fb8c..000000000000 --- a/Documentation/devicetree/bindings/clock/sifive/fu540-prci.txt +++ /dev/null @@ -1,46 +0,0 @@ -SiFive FU540 PRCI bindings - -On the FU540 family of SoCs, most system-wide clock and reset integration -is via the PRCI IP block. - -Required properties: -- compatible: Should be "sifive,-prci". Only one value is - supported: "sifive,fu540-c000-prci" -- reg: Should describe the PRCI's register target physical address region -- clocks: Should point to the hfclk device tree node and the rtcclk - device tree node. The RTC clock here is not a time-of-day clock, - but is instead a high-stability clock source for system timers - and cycle counters. -- #clock-cells: Should be <1> - -The clock consumer should specify the desired clock via the clock ID -macros defined in include/dt-bindings/clock/sifive-fu540-prci.h. -These macros begin with PRCI_CLK_. - -The hfclk and rtcclk nodes are required, and represent physical -crystals or resonators located on the PCB. These nodes should be present -underneath /, rather than /soc. - -Examples: - -/* under /, in PCB-specific DT data */ -hfclk: hfclk { - #clock-cells = <0>; - compatible = "fixed-clock"; - clock-frequency = <33333333>; - clock-output-names = "hfclk"; -}; -rtcclk: rtcclk { - #clock-cells = <0>; - compatible = "fixed-clock"; - clock-frequency = <1000000>; - clock-output-names = "rtcclk"; -}; - -/* under /soc, in SoC-specific DT data */ -prci: clock-controller@10000000 { - compatible = "sifive,fu540-c000-prci"; - reg = <0x0 0x10000000 0x0 0x1000>; - clocks = <&hfclk>, <&rtcclk>; - #clock-cells = <1>; -}; diff --git a/Documentation/devicetree/bindings/clock/sifive/fu540-prci.yaml b/Documentation/devicetree/bindings/clock/sifive/fu540-prci.yaml new file mode 100644 index 000000000000..c3be1b600007 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/sifive/fu540-prci.yaml @@ -0,0 +1,60 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2020 SiFive, Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/sifive/fu540-prci.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SiFive FU540 Power Reset Clock Interrupt Controller (PRCI) + +maintainers: + - Sagar Kadam + - Paul Walmsley + +description: + On the FU540 family of SoCs, most system-wide clock and reset integration + is via the PRCI IP block. + The clock consumer should specify the desired clock via the clock ID + macros defined in include/dt-bindings/clock/sifive-fu540-prci.h. + These macros begin with PRCI_CLK_. + + The hfclk and rtcclk nodes are required, and represent physical + crystals or resonators located on the PCB. These nodes should be present + underneath /, rather than /soc. + +properties: + compatible: + const: sifive,fu540-c000-prci + + reg: + maxItems: 1 + + clocks: + items: + - description: high frequency clock. + - description: RTL clock. + + clock-names: + items: + - const: hfclk + - const: rtcclk + + "#clock-cells": + const: 1 + +required: + - compatible + - reg + - clocks + - "#clock-cells" + +additionalProperties: false + +examples: + - | + prci: clock-controller@10000000 { + compatible = "sifive,fu540-c000-prci"; + reg = <0x10000000 0x1000>; + clocks = <&hfclk>, <&rtcclk>; + #clock-cells = <1>; + }; -- cgit v1.2.3