Convert Texas Instruments Wakeup M3 Remote Processor from text to Dt schema. Add optional resets and reset-names property which was missing from legacy binding. make ti,hwmods deprecated as it no longer needed, it is kept to support older board files without ti,sysc.
Signed-off-by: Bhargav Joshi <[email protected]> --- .../bindings/remoteproc/ti,am3352-wkup-m3.yaml | 89 ++++++++++++++++++++++ .../bindings/remoteproc/wkup_m3_rproc.txt | 52 ------------- 2 files changed, 89 insertions(+), 52 deletions(-) diff --git a/Documentation/devicetree/bindings/remoteproc/ti,am3352-wkup-m3.yaml b/Documentation/devicetree/bindings/remoteproc/ti,am3352-wkup-m3.yaml new file mode 100644 index 000000000000..9e8a03acdec4 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/ti,am3352-wkup-m3.yaml @@ -0,0 +1,89 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/remoteproc/ti,am3352-wkup-m3.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI AM33xx/AM43xx Wakeup M3 Remote Processor + +maintainers: + - Suman Anna <[email protected]> + - Bhargav Joshi <[email protected]> + +description: + The TI AM33xx and AM43xx family of devices use a small Cortex M3 co-processor + (commonly referred to as Wakeup M3 or CM3) to help with various low power + tasks that cannot be controlled from the MPU. This CM3 processor requires a + firmware binary to accomplish this. A wkup_m3 device node is used to + represent the Wakeup M3 processor instance within the SoC. It is added as a + child node of the parent interconnect bus (l4_wkup) through which it is + accessible to the MPU. + +properties: + compatible: + enum: + - ti,am3352-wkup-m3 + - ti,am4372-wkup-m3 + + reg: + items: + - description: Address range for UMEM + - description: Address range for DMEM + + reg-names: + items: + - const: umem + - const: dmem + + ti,pm-firmware: + $ref: /schemas/types.yaml#/definitions/string + description: + Name of firmware file to be used for loading and booting the wkup_m3 + remote processor. + + resets: + maxItems: 1 + + reset-names: + items: + - const: rstctrl + + ti,hwmods: + $ref: /schemas/types.yaml#/definitions/string + deprecated: true + description: + Name of the hwmod associated with the wkupm3 device. + +required: + - compatible + - reg + - reg-names + - ti,pm-firmware + +dependencies: + resets: [reset-names] + reset-names: [resets] + +additionalProperties: false + +examples: + - | + target-module@0 { + compatible = "ti,sysc-omap4", "ti,sysc"; + reg = <0x0 0x4>; + reg-names = "rev"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x00000000 0x00000000 0x4000>, + <0x00080000 0x00080000 0x2000>; + + cpu@0 { + compatible = "ti,am3352-wkup-m3"; + reg = <0x00000000 0x4000>, + <0x00080000 0x2000>; + reg-names = "umem", "dmem"; + resets = <&prm_wkup 3>; + reset-names = "rstctrl"; + ti,pm-firmware = "am335x-pm-firmware.elf"; + }; + }; diff --git a/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt b/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt deleted file mode 100644 index 3a70073797eb..000000000000 --- a/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt +++ /dev/null @@ -1,52 +0,0 @@ -TI Wakeup M3 Remoteproc Driver -============================== - -The TI AM33xx and AM43xx family of devices use a small Cortex M3 co-processor -(commonly referred to as Wakeup M3 or CM3) to help with various low power tasks -that cannot be controlled from the MPU. This CM3 processor requires a firmware -binary to accomplish this. The wkup_m3 remoteproc driver handles the loading of -the firmware and booting of the CM3. - -Wkup M3 Device Node: -==================== -A wkup_m3 device node is used to represent the Wakeup M3 processor instance -within the SoC. It is added as a child node of the parent interconnect bus -(l4_wkup) through which it is accessible to the MPU. - -Required properties: --------------------- -- compatible: Should be one of, - "ti,am3352-wkup-m3" for AM33xx SoCs - "ti,am4372-wkup-m3" for AM43xx SoCs -- reg: Should contain the address ranges for the two internal - memory regions, UMEM and DMEM. The parent node should - provide an appropriate ranges property for properly - translating these into bus addresses. -- reg-names: Contains the corresponding names for the two memory - regions. These should be named "umem" & "dmem". -- ti,hwmods: Name of the hwmod associated with the wkupm3 device. -- ti,pm-firmware: Name of firmware file to be used for loading and - booting the wkup_m3 remote processor. - -Example: --------- -/* AM33xx */ -ocp { - l4_wkup: l4_wkup@44c00000 { - compatible = "am335-l4-wkup", "simple-bus"; - ranges = <0 0x44c00000 0x400000>; - #address-cells = <1>; - #size-cells = <1>; - - wkup_m3: wkup_m3@100000 { - compatible = "ti,am3352-wkup-m3"; - reg = <0x100000 0x4000>, - <0x180000 0x2000>; - reg-names = "umem", "dmem"; - ti,hwmods = "wkup_m3"; - ti,pm-firmware = "am335x-pm-firmware.elf"; - }; - }; - - ... -}; --- base-commit: c6859eed755df351a3978b33cb92365f9b3e8f06 change-id: 20260719-ti-wkup_m3-edac718d0d7c Best regards, -- Bhargav
