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Message-ID: <20191121095225.26775-1-arnaud.pouliquen@st.com>
Date: Thu, 21 Nov 2019 10:52:25 +0100
From: Arnaud Pouliquen <arnaud.pouliquen@...com>
To: Rob Herring <robh@...nel.org>, Mark Rutland <mark.rutland@....com>,
Alexandre Torgue <alexandre.torgue@...com>
CC: <devicetree@...r.kernel.org>,
<linux-stm32@...md-mailman.stormreply.com>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
Fabien Dessenne <fabien.dessenne@...com>,
Arnaud Pouliquen <arnaud.pouliquen@...com>
Subject: [PATCH v2] dt-bindings: remoteproc: convert stm32-rproc to json-schema
Convert the STM32 remoteproc bindings to DT schema format using
json-schema
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...com>
---
.../bindings/remoteproc/st,stm32-rproc.yaml | 131 ++++++++++++++++++
.../bindings/remoteproc/stm32-rproc.txt | 63 ---------
2 files changed, 131 insertions(+), 63 deletions(-)
create mode 100644 Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
delete mode 100644 Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt
diff --git a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
new file mode 100644
index 000000000000..13c2d06c2e0f
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
@@ -0,0 +1,131 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/remoteproc/st,stm32-rproc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: STMicroelectronics STM32 remote processor controller bindings
+
+description:
+ This document defines the binding for the remoteproc component that loads and
+ boots firmwares on the ST32MP family chipset.
+
+maintainers:
+ - Fabien Dessenne <fabien.dessenne@...com>
+ - Arnaud Pouliquen <arnaud.pouliquen@...com>
+
+
+allOf:
+ - $ref: /schemas/mbox/mbox-consumer.yaml#
+
+properties:
+ compatible:
+ const: st,stm32mp1-m4
+
+ reg:
+ description:
+ Address ranges of the RETRAM and MCU SRAM memories used by the remote
+ processor.
+ maxItems: 3
+
+ resets:
+ maxItems: 1
+
+ st,syscfg-holdboot:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/phandle-array"
+ description: remote processor reset hold boot
+ - Phandle of syscon block.
+ - The offset of the hold boot setting register.
+ - The field mask of the hold boot.
+ maxItems: 1
+
+ st,syscfg-tz:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/phandle-array"
+ description:
+ Reference to the system configuration which holds the RCC trust zone mode
+ - Phandle of syscon block.
+ - The offset of the RCC trust zone mode register.
+ - The field mask of the RCC trust zone mode.
+ maxItems: 1
+
+ interrupts:
+ description: Should contain the WWDG1 watchdog reset interrupt
+ maxItems: 1
+
+ mboxes:
+ description:
+ This property is required only if the rpmsg/virtio functionality is used.
+ items:
+ - description: |
+ A channel (a) used to communicate through virtqueues with the
+ remote proc.
+ Bi-directional channel:
+ - from local to remote = send message
+ - from remote to local = send message ack
+ - description: |
+ A channel (b) working the opposite direction of channel (a)
+ - description: |
+ A channel (c) used by the local proc to notify the remote proc that it
+ is about to be shut down.
+ Unidirectional channel:
+ - from local to remote, where ACK from the remote means that it is
+ ready for shutdown
+ maxItems: 3
+
+ mbox-names:
+ items:
+ - const: vq0
+ - const: vq1
+ - const: shutdown
+ minItems: 1
+ maxItems: 3
+
+ memory-region:
+ description:
+ List of phandles to the reserved memory regions associated with the
+ remoteproc device. This is variable and describes the memories shared with
+ the remote processor (e.g. remoteproc firmware and carveouts, rpmsg
+ vrings, ...).
+ (see ../reserved-memory/reserved-memory.txt)
+
+ st,syscfg-pdds:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/phandle-array"
+ description: |
+ Reference to the system configuration which holds the remote
+ 1st cell: phandle to syscon block
+ 2nd cell: register offset containing the deep sleep setting
+ 3rd cell: register bitmask for the deep sleep bit
+ maxItems: 1
+
+ st,auto-boot:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ If defined, when remoteproc is probed, it loads the default firmware and
+ starts the remote processor.
+
+required:
+ - compatible
+ - reg
+ - resets
+ - st,syscfg-holdboot
+ - st,syscfg-tz
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/reset/stm32mp1-resets.h>
+ m4_rproc: m4@...00000 {
+ compatible = "st,stm32mp1-m4";
+ reg = <0x10000000 0x40000>,
+ <0x30000000 0x40000>,
+ <0x38000000 0x10000>;
+ resets = <&rcc MCU_R>;
+ st,syscfg-holdboot = <&rcc 0x10C 0x1>;
+ st,syscfg-tz = <&rcc 0x000 0x1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt b/Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt
deleted file mode 100644
index 5fa915a4b736..000000000000
--- a/Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-STMicroelectronics STM32 Remoteproc
------------------------------------
-This document defines the binding for the remoteproc component that loads and
-boots firmwares on the ST32MP family chipset.
-
-Required properties:
-- compatible: Must be "st,stm32mp1-m4"
-- reg: Address ranges of the RETRAM and MCU SRAM memories used by the
- remote processor.
-- resets: Reference to a reset controller asserting the remote processor.
-- st,syscfg-holdboot: Reference to the system configuration which holds the
- remote processor reset hold boot
- 1st cell: phandle of syscon block
- 2nd cell: register offset containing the hold boot setting
- 3rd cell: register bitmask for the hold boot field
-- st,syscfg-tz: Reference to the system configuration which holds the RCC trust
- zone mode
- 1st cell: phandle to syscon block
- 2nd cell: register offset containing the RCC trust zone mode setting
- 3rd cell: register bitmask for the RCC trust zone mode bit
-
-Optional properties:
-- interrupts: Should contain the watchdog interrupt
-- mboxes: This property is required only if the rpmsg/virtio functionality
- is used. List of phandle and mailbox channel specifiers:
- - a channel (a) used to communicate through virtqueues with the
- remote proc.
- Bi-directional channel:
- - from local to remote = send message
- - from remote to local = send message ack
- - a channel (b) working the opposite direction of channel (a)
- - a channel (c) used by the local proc to notify the remote proc
- that it is about to be shut down.
- Unidirectional channel:
- - from local to remote, where ACK from the remote means
- that it is ready for shutdown
-- mbox-names: This property is required if the mboxes property is used.
- - must be "vq0" for channel (a)
- - must be "vq1" for channel (b)
- - must be "shutdown" for channel (c)
-- memory-region: List of phandles to the reserved memory regions associated with
- the remoteproc device. This is variable and describes the
- memories shared with the remote processor (eg: remoteproc
- firmware and carveouts, rpmsg vrings, ...).
- (see ../reserved-memory/reserved-memory.txt)
-- st,syscfg-pdds: Reference to the system configuration which holds the remote
- processor deep sleep setting
- 1st cell: phandle to syscon block
- 2nd cell: register offset containing the deep sleep setting
- 3rd cell: register bitmask for the deep sleep bit
-- st,auto-boot: If defined, when remoteproc is probed, it loads the default
- firmware and starts the remote processor.
-
-Example:
- m4_rproc: m4@...00000 {
- compatible = "st,stm32mp1-m4";
- reg = <0x10000000 0x40000>,
- <0x30000000 0x40000>,
- <0x38000000 0x10000>;
- resets = <&rcc MCU_R>;
- st,syscfg-holdboot = <&rcc 0x10C 0x1>;
- st,syscfg-tz = <&rcc 0x000 0x1>;
- };
--
2.17.1
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