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author | Bharat Bhushan <bbhushan2@marvell.com> | 2023-08-03 06:25:22 +0300 |
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committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2023-08-13 15:29:48 +0300 |
commit | e81e57fe89a20c1ee5e0f0b927ce8fe614118458 (patch) | |
tree | f1886c1b7fcd8c251398d0eba5777723ce8e7132 /Documentation | |
parent | 130c3f7e4640a0c5b18c1c8461a1d0e1053119c1 (diff) | |
download | linux-e81e57fe89a20c1ee5e0f0b927ce8fe614118458.tar.xz |
dt-bindings: watchdog: marvell GTI system watchdog driver
Add binding documentation for the Marvell GTI system
watchdog driver.
Signed-off-by: Bharat Bhushan <bbhushan2@marvell.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230803032523.6242-1-bbhushan2@marvell.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/watchdog/marvell,cn10624-wdt.yaml | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/marvell,cn10624-wdt.yaml b/Documentation/devicetree/bindings/watchdog/marvell,cn10624-wdt.yaml new file mode 100644 index 000000000000..1b583f232e53 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/marvell,cn10624-wdt.yaml @@ -0,0 +1,83 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/marvell,cn10624-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Marvell Global Timer (GTI) system watchdog + +maintainers: + - Bharat Bhushan <bbhushan2@marvell.com> + +allOf: + - $ref: watchdog.yaml# + +properties: + compatible: + oneOf: + - enum: + - marvell,cn9670-wdt + - marvell,cn10624-wdt + + - items: + - enum: + - marvell,cn9880-wdt + - marvell,cnf9535-wdt + - const: marvell,cn9670-wdt + + - items: + - enum: + - marvell,cn10308-wdt + - marvell,cnf10518-wdt + - const: marvell,cn10624-wdt + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: refclk + + marvell,wdt-timer-index: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 63 + description: + An SoC have many timers (up to 64), firmware can reserve one or more timer + for some other use case and configures one of the global timer as watchdog + timer. Firmware will update this field with the timer number configured + as watchdog timer. + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + soc { + #address-cells = <2>; + #size-cells = <2>; + + watchdog@802000040000 { + compatible = "marvell,cn9670-wdt"; + reg = <0x00008020 0x00040000 0x00000000 0x00020000>; + interrupts = <GIC_SPI 38 IRQ_TYPE_EDGE_RISING>; + clocks = <&sclk>; + clock-names = "refclk"; + marvell,wdt-timer-index = <63>; + }; + }; + +... |