diff options
Diffstat (limited to 'dts/Bindings/remoteproc/ti,k3-r5f-rproc.yaml')
| -rw-r--r-- | dts/Bindings/remoteproc/ti,k3-r5f-rproc.yaml | 97 |
1 files changed, 71 insertions, 26 deletions
diff --git a/dts/Bindings/remoteproc/ti,k3-r5f-rproc.yaml b/dts/Bindings/remoteproc/ti,k3-r5f-rproc.yaml index eeef255c40..a492f74a86 100644 --- a/dts/Bindings/remoteproc/ti,k3-r5f-rproc.yaml +++ b/dts/Bindings/remoteproc/ti,k3-r5f-rproc.yaml @@ -1,4 +1,4 @@ -# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- $id: http://devicetree.org/schemas/remoteproc/ti,k3-r5f-rproc.yaml# @@ -21,6 +21,9 @@ description: | called "Single-CPU" mode, where only Core0 is used, but with ability to use Core1's TCMs as well. + AM62 SoC family support a single R5F core only which runs Device Manager + firmware and can also be used as a remote processor with IPC communication. + Each Dual-Core R5F sub-system is represented as a single DTS node representing the cluster, with a pair of child DT nodes representing the individual R5F cores. Each node has a number of required or optional @@ -34,10 +37,12 @@ properties: compatible: enum: + - ti,am62-r5fss + - ti,am64-r5fss - ti,am654-r5fss - - ti,j721e-r5fss - ti,j7200-r5fss - - ti,am64-r5fss + - ti,j721e-r5fss + - ti,j721s2-r5fss power-domains: description: | @@ -63,10 +68,17 @@ properties: $ref: /schemas/types.yaml#/definitions/uint32 description: | Configuration Mode for the Dual R5F cores within the R5F cluster. - Should be either a value of 1 (LockStep mode) or 0 (Split mode) on - most SoCs (AM65x, J721E, J7200), default is LockStep mode if omitted; - and should be either a value of 0 (Split mode) or 2 (Single-CPU mode) - on AM64x SoCs, default is Split mode if omitted. + For most SoCs (AM65x, J721E, J7200, J721s2), + It should be either a value of 1 (LockStep mode) or 0 (Split mode) on + most SoCs (AM65x, J721E, J7200, J721s2), default is LockStep mode if + omitted. + For AM64x SoCs, + It should be either a value of 0 (Split mode) or 2 (Single-CPU mode) and + default is Split mode if omitted. + For AM62x SoCs, + It should be set as 3 (Single-Core mode) which is also the default if + omitted. + # R5F Processor Child Nodes: # ========================== @@ -79,7 +91,9 @@ patternProperties: node representing a TI instantiation of the Arm Cortex R5F core. There are some specific integration differences for the IP like the usage of a Region Address Translator (RAT) for translating the larger SoC bus - addresses into a 32-bit address space for the processor. + addresses into a 32-bit address space for the processor. For AM62x, + the R5F Sub-System device node should only define one R5F child node + as it has only one core available. Each R5F core has an associated 64 KB of Tightly-Coupled Memory (TCM) internal memories split between two banks - TCMA and TCMB (further @@ -88,22 +102,23 @@ patternProperties: caches. Each of the TCMs can be enabled or disabled independently and either of them can be configured to appear at that R5F's address 0x0. - The cores do not use an MMU, but has a Region Address Translater + The cores do not use an MMU, but has a Region Address Translator (RAT) module that is accessible only from the R5Fs for providing translations between 32-bit CPU addresses into larger system bus addresses. Cache and memory access settings are provided through a Memory Protection Unit (MPU), programmable only from the R5Fs. - allOf: - - $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml# + $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml# properties: compatible: enum: + - ti,am62-r5f + - ti,am64-r5f - ti,am654-r5f - - ti,j721e-r5f - ti,j7200-r5f - - ti,am64-r5f + - ti,j721e-r5f + - ti,j721s2-r5f reg: items: @@ -187,6 +202,8 @@ patternProperties: $ref: /schemas/types.yaml#/definitions/phandle-array minItems: 1 maxItems: 4 + items: + maxItems: 1 description: | phandles to one or more reserved on-chip SRAM regions. The regions should be defined as child nodes of the respective SRAM node, and @@ -205,19 +222,39 @@ patternProperties: unevaluatedProperties: false -if: - properties: - compatible: - enum: - - ti,am64-r5fss -then: - properties: - ti,cluster-mode: - enum: [0, 2] -else: - properties: - ti,cluster-mode: - enum: [0, 1] +allOf: + - if: + properties: + compatible: + enum: + - ti,am64-r5fss + then: + properties: + ti,cluster-mode: + enum: [0, 2] + + - if: + properties: + compatible: + enum: + - ti,am654-r5fss + - ti,j7200-r5fss + - ti,j721e-r5fss + - ti,j721s2-r5fss + then: + properties: + ti,cluster-mode: + enum: [0, 1] + + - if: + properties: + compatible: + enum: + - ti,am62-r5fss + then: + properties: + ti,cluster-mode: + enum: [3] required: - compatible @@ -234,6 +271,14 @@ examples: #address-cells = <2>; #size-cells = <2>; + mailbox0: mailbox-0 { + #mbox-cells = <1>; + }; + + mailbox1: mailbox-1 { + #mbox-cells = <1>; + }; + bus@100000 { compatible = "simple-bus"; #address-cells = <2>; |