From: Abdellatif El Khlifi <abdellatif.elkhlifi@xxxxxxx> introduce the bindings for Arm remoteproc support. Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@xxxxxxx> --- .../bindings/remoteproc/arm,rproc.yaml | 69 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/arm,rproc.yaml diff --git a/Documentation/devicetree/bindings/remoteproc/arm,rproc.yaml b/Documentation/devicetree/bindings/remoteproc/arm,rproc.yaml new file mode 100644 index 000000000000..322197158059 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/arm,rproc.yaml @@ -0,0 +1,69 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/remoteproc/arm,rproc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Arm Remoteproc Devices + +maintainers: + - Abdellatif El Khlifi <abdellatif.elkhlifi@xxxxxxx> + +description: | + Some Arm heterogeneous System-On-Chips feature remote processors that can + be controlled with a reset control register and a reset status register to + start or stop the processor. + + This document defines the bindings for these remote processors. + +properties: + compatible: + enum: + - arm,corstone1000-extsys + + reg: + minItems: 2 + maxItems: 2 + description: | + Address and size in bytes of the reset control register + and the reset status register. + Expects the registers to be in the order as above. + Should contain an entry for each value in 'reg-names'. + + reg-names: + description: | + Required names for each of the reset registers defined in + the 'reg' property. Expects the names from the following + list, in the specified order, each representing the corresponding + reset register. + items: + - const: reset-control + - const: reset-status + + firmware-name: + description: | + Default name of the firmware to load to the remote processor. + +required: + - compatible + - reg + - reg-names + - firmware-name + +additionalProperties: false + +examples: + - | + extsys0: remoteproc@1a010310 { + compatible = "arm,corstone1000-extsys"; + reg = <0x1a010310 0x4>, <0x1a010314 0x4>; + reg-names = "reset-control", "reset-status"; + firmware-name = "es0_flashfw.elf"; + }; + + extsys1: remoteproc@1a010318 { + compatible = "arm,corstone1000-extsys"; + reg = <0x1a010318 0x4>, <0x1a01031c 0x4>; + reg-names = "reset-control", "reset-status"; + firmware-name = "es1_flashfw.elf"; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 54d6a40feea5..eddaa3841a65 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1768,6 +1768,7 @@ ARM REMOTEPROC DRIVER M: Abdellatif El Khlifi <abdellatif.elkhlifi@xxxxxxx> L: linux-remoteproc@xxxxxxxxxxxxxxx S: Maintained +F: Documentation/devicetree/bindings/remoteproc/arm,rproc.yaml F: drivers/remoteproc/arm_rproc.c ARM SMC WATCHDOG DRIVER -- 2.25.1
