On Sun, Jul 19, 2026 at 11:36:41PM +0530, Bhargav Joshi wrote: > 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(-) >
Applied. Thanks, Mathieu > 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 >
