From bce3cff3a3031fd0ee73c8bd4a6c10437aaff0fe Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Mon, 30 Sep 2019 13:52:04 +0200 Subject: dt-bindings: bus: renesas-bsc: convert bindings to json-schema Convert Renesas Bus State Controller (BSC) bindings documentation to json-schema. Signed-off-by: Simon Horman Signed-off-by: Rob Herring --- .../devicetree/bindings/bus/renesas,bsc.txt | 46 ----------------- .../devicetree/bindings/bus/renesas,bsc.yaml | 60 ++++++++++++++++++++++ 2 files changed, 60 insertions(+), 46 deletions(-) delete mode 100644 Documentation/devicetree/bindings/bus/renesas,bsc.txt create mode 100644 Documentation/devicetree/bindings/bus/renesas,bsc.yaml diff --git a/Documentation/devicetree/bindings/bus/renesas,bsc.txt b/Documentation/devicetree/bindings/bus/renesas,bsc.txt deleted file mode 100644 index 90e947269437..000000000000 --- a/Documentation/devicetree/bindings/bus/renesas,bsc.txt +++ /dev/null @@ -1,46 +0,0 @@ -Renesas Bus State Controller (BSC) -================================== - -The Renesas Bus State Controller (BSC, sometimes called "LBSC within Bus -Bridge", or "External Bus Interface") can be found in several Renesas ARM SoCs. -It provides an external bus for connecting multiple external devices to the -SoC, driving several chip select lines, for e.g. NOR FLASH, Ethernet and USB. - -While the BSC is a fairly simple memory-mapped bus, it may be part of a PM -domain, and may have a gateable functional clock. -Before a device connected to the BSC can be accessed, the PM domain -containing the BSC must be powered on, and the functional clock -driving the BSC must be enabled. - -The bindings for the BSC extend the bindings for "simple-pm-bus". - - -Required properties - - compatible: Must contain an SoC-specific value, and "renesas,bsc" and - "simple-pm-bus" as fallbacks. - SoC-specific values can be: - "renesas,bsc-r8a73a4" for R-Mobile APE6 (r8a73a4) - "renesas,bsc-sh73a0" for SH-Mobile AG5 (sh73a0) - - #address-cells, #size-cells, ranges: Must describe the mapping between - parent address and child address spaces. - - reg: Must contain the base address and length to access the bus controller. - -Optional properties: - - interrupts: Must contain a reference to the BSC interrupt, if available. - - clocks: Must contain a reference to the functional clock, if available. - - power-domains: Must contain a reference to the PM domain, if available. - - -Example: - - bsc: bus@fec10000 { - compatible = "renesas,bsc-sh73a0", "renesas,bsc", - "simple-pm-bus"; - #address-cells = <1>; - #size-cells = <1>; - ranges = <0 0 0x20000000>; - reg = <0xfec10000 0x400>; - interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&zb_clk>; - power-domains = <&pd_a4s>; - }; diff --git a/Documentation/devicetree/bindings/bus/renesas,bsc.yaml b/Documentation/devicetree/bindings/bus/renesas,bsc.yaml new file mode 100644 index 000000000000..7d10b62a52d5 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/renesas,bsc.yaml @@ -0,0 +1,60 @@ +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/renesas,bsc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas Bus State Controller (BSC) + +maintainers: + - Geert Uytterhoeven + +description: | + The Renesas Bus State Controller (BSC, sometimes called "LBSC within Bus + Bridge", or "External Bus Interface") can be found in several Renesas ARM + SoCs. It provides an external bus for connecting multiple external + devices to the SoC, driving several chip select lines, for e.g. NOR + FLASH, Ethernet and USB. + + While the BSC is a fairly simple memory-mapped bus, it may be part of a + PM domain, and may have a gateable functional clock. Before a device + connected to the BSC can be accessed, the PM domain containing the BSC + must be powered on, and the functional clock driving the BSC must be + enabled. + + The bindings for the BSC extend the bindings for "simple-pm-bus". + +allOf: + - $ref: simple-pm-bus.yaml# + +properties: + compatible: + items: + - enum: + - renesas,bsc-r8a73a4 # R-Mobile APE6 (r8a73a4) + - renesas,bsc-sh73a0 # SH-Mobile AG5 (sh73a0) + - const: renesas,bsc + - {} # simple-pm-bus, but not listed here to avoid false select + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - reg + +examples: + - | + #include + + bsc: bus@fec10000 { + compatible = "renesas,bsc-sh73a0", "renesas,bsc", "simple-pm-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0 0x20000000>; + reg = <0xfec10000 0x400>; + interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&zb_clk>; + power-domains = <&pd_a4s>; + }; -- cgit v1.2.3-59-g8ed1b