[PATCH 3/3] dt-bindings: bus: ti-sysc: Update to use yaml binding
Tony Lindgren
tony at atomide.com
Thu Oct 7 05:48:58 PDT 2021
Update the binding for ti-sysc interconnect target module driver to yaml
format.
Cc: Rob Herring <robh at kernel.org>
Cc: Suman Anna <s-anna at ti.com>
Signed-off-by: Tony Lindgren <tony at atomide.com>
---
.../devicetree/bindings/bus/ti-sysc.txt | 139 ----------------
.../devicetree/bindings/bus/ti-sysc.yaml | 150 ++++++++++++++++++
2 files changed, 150 insertions(+), 139 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/bus/ti-sysc.txt
create mode 100644 Documentation/devicetree/bindings/bus/ti-sysc.yaml
diff --git a/Documentation/devicetree/bindings/bus/ti-sysc.txt b/Documentation/devicetree/bindings/bus/ti-sysc.txt
deleted file mode 100644
--- a/Documentation/devicetree/bindings/bus/ti-sysc.txt
+++ /dev/null
@@ -1,139 +0,0 @@
-Texas Instruments sysc interconnect target module wrapper binding
-
-Texas Instruments SoCs can have a generic interconnect target module
-hardware for devices connected to various interconnects such as L3
-interconnect (Arteris NoC) and L4 interconnect (Sonics s3220). The sysc
-is mostly used for interaction between module and PRCM. It participates
-in the OCP Disconnect Protocol but other than that is mostly independent
-of the interconnect.
-
-Each interconnect target module can have one or more devices connected to
-it. There is a set of control registers for managing interconnect target
-module clocks, idle modes and interconnect level resets for the module.
-
-These control registers are sprinkled into the unused register address
-space of the first child device IP block managed by the interconnect
-target module and typically are named REVISION, SYSCONFIG and SYSSTATUS.
-
-Required standard properties:
-
-- compatible shall be one of the following generic types:
-
- "ti,sysc"
- "ti,sysc-omap2"
- "ti,sysc-omap4"
- "ti,sysc-omap4-simple"
-
- or one of the following derivative types for hardware
- needing special workarounds:
-
- "ti,sysc-omap2-timer"
- "ti,sysc-omap4-timer"
- "ti,sysc-omap3430-sr"
- "ti,sysc-omap3630-sr"
- "ti,sysc-omap4-sr"
- "ti,sysc-omap3-sham"
- "ti,sysc-omap-aes"
- "ti,sysc-mcasp"
- "ti,sysc-dra7-mcasp"
- "ti,sysc-usb-host-fs"
- "ti,sysc-dra7-mcan"
- "ti,sysc-pruss"
-
-- reg shall have register areas implemented for the interconnect
- target module in question such as revision, sysc and syss
-
-- reg-names shall contain the register names implemented for the
- interconnect target module in question such as
- "rev, "sysc", and "syss"
-
-- ranges shall contain the interconnect target module IO range
- available for one or more child device IP blocks managed
- by the interconnect target module, the ranges may include
- multiple ranges such as device L4 range for control and
- parent L3 range for DMA access
-
-Optional properties:
-
-- ti,sysc-mask shall contain mask of supported register bits for the
- SYSCONFIG register as documented in the Technical Reference
- Manual (TRM) for the interconnect target module
-
-- ti,sysc-midle list of master idle modes supported by the interconnect
- target module as documented in the TRM for SYSCONFIG
- register MIDLEMODE bits
-
-- ti,sysc-sidle list of slave idle modes supported by the interconnect
- target module as documented in the TRM for SYSCONFIG
- register SIDLEMODE bits
-
-- ti,sysc-delay-us delay needed after OCP softreset before accssing
- SYSCONFIG register again
-
-- ti,syss-mask optional mask of reset done status bits as described in the
- TRM for SYSSTATUS registers, typically 1 with some devices
- having separate reset done bits for children like OHCI and
- EHCI
-
-- clocks clock specifier for each name in the clock-names as
- specified in the binding documentation for ti-clkctrl,
- typically available for all interconnect targets on TI SoCs
- based on omap4 except if it's read-only register in hwauto
- mode as for example omap4 L4_CFG_CLKCTRL
-
-- clock-names should contain at least "fck", and optionally also "ick"
- depending on the SoC and the interconnect target module,
- some interconnect target modules also need additional
- optional clocks that can be specified as listed in TRM
- for the related CLKCTRL register bits 8 to 15 such as
- "dbclk" or "clk32k" depending on their role
-
-- ti,hwmods optional TI interconnect module name to use legacy
- hwmod platform data
-
-- ti,no-reset-on-init interconnect target module should not be reset at init
-
-- ti,no-idle-on-init interconnect target module should not be idled at init
-
-- ti,no-idle interconnect target module should not be idled
-
-Example: Single instance of MUSB controller on omap4 using interconnect ranges
-using offsets from l4_cfg second segment (0x4a000000 + 0x80000 = 0x4a0ab000):
-
- target-module at 2b000 { /* 0x4a0ab000, ap 84 12.0 */
- compatible = "ti,sysc-omap2";
- ti,hwmods = "usb_otg_hs";
- reg = <0x2b400 0x4>,
- <0x2b404 0x4>,
- <0x2b408 0x4>;
- reg-names = "rev", "sysc", "syss";
- clocks = <&l3_init_clkctrl OMAP4_USB_OTG_HS_CLKCTRL 0>;
- clock-names = "fck";
- ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP |
- SYSC_OMAP2_SOFTRESET |
- SYSC_OMAP2_AUTOIDLE)>;
- ti,sysc-midle = <SYSC_IDLE_FORCE>,
- <SYSC_IDLE_NO>,
- <SYSC_IDLE_SMART>;
- ti,sysc-sidle = <SYSC_IDLE_FORCE>,
- <SYSC_IDLE_NO>,
- <SYSC_IDLE_SMART>,
- <SYSC_IDLE_SMART_WKUP>;
- ti,syss-mask = <1>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0 0x2b000 0x1000>;
-
- usb_otg_hs: otg at 0 {
- compatible = "ti,omap4-musb";
- reg = <0x0 0x7ff>;
- interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
- usb-phy = <&usb2_phy>;
- ...
- };
- };
-
-Note that other SoCs, such as am335x can have multiple child devices. On am335x
-there are two MUSB instances, two USB PHY instances, and a single CPPI41 DMA
-instance as children of a single interconnect target module.
diff --git a/Documentation/devicetree/bindings/bus/ti-sysc.yaml b/Documentation/devicetree/bindings/bus/ti-sysc.yaml
new file mode 100644
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/ti-sysc.yaml
@@ -0,0 +1,150 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/ti-sysc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments interconnect target module binding
+
+maintainers:
+ - Tony Lindgren <tony at atomide.com>
+
+description: |
+ Texas Instruments SoCs can have a generic interconnect target module
+ for devices connected to various interconnects such as L3 interconnect
+ using Arteris NoC, and L4 interconnect using Sonics s3220. This module
+ is mostly used for interaction between module and Power, Reset and Clock
+ Manager PRCM. It participates in the OCP Disconnect Protocol, but other
+ than that it is mostly independent of the interconnect.
+
+ Each interconnect target module can have one or more devices connected to
+ it. There is a set of control registers for managing the interconnect target
+ module clocks, idle modes and interconnect level resets.
+
+ The interconnect target module control registers are sprinkled into the
+ unused register address space of the first child device IP block managed by
+ the interconnect target module. Typically the register names are REVISION,
+ SYSCONFIG and SYSSTATUS.
+
+properties:
+ $nodename:
+ pattern: "^target-module(@[0-9a-f]+)?$"
+
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - ti,sysc-omap2
+ - ti,sysc-omap2
+ - ti,sysc-omap4
+ - ti,sysc-omap4-simple
+ - ti,sysc-omap2-timer
+ - ti,sysc-omap4-timer
+ - ti,sysc-omap3430-sr
+ - ti,sysc-omap3630-sr
+ - ti,sysc-omap4-sr
+ - ti,sysc-omap3-sham
+ - ti,sysc-omap-aes
+ - ti,sysc-mcasp
+ - ti,sysc-dra7-mcasp
+ - ti,sysc-usb-host-fs
+ - ti,sysc-dra7-mcan
+ - ti,sysc-pruss
+ - const: ti,sysc
+ - items:
+ - const: ti,sysc
+
+ reg: true
+
+ reg-names: true
+
+ clocks: true
+
+ clock-names: true
+
+ power-domains: true
+
+ '#address-cells':
+ enum: [ 1, 2 ]
+
+ '#size-cells':
+ enum: [ 1, 2 ]
+
+ ranges: true
+
+ ti,sysc-mask:
+ description: Mask of supported register bits for the SYSCONFIG register
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ ti,sysc-midle:
+ description: List of hardware supported idle modes
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ ti,sysc-sidle:
+ description: List of hardware supported idle modes
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ ti,syss-mask:
+ description: Mask of supported register bits for the SYSSTATUS register
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ ti,sysc-delay-us:
+ description: Delay needed after OCP softreset before accessing SYCONFIG
+ default: 0
+ minimum: 0
+ maximum: 2
+
+ ti,no-reset-on-init:
+ description: Interconnect target module shall not be reset at init
+ type: boolean
+
+ ti,no-idle-on-init:
+ description: Interconnect target module shall not be idled at init
+ type: boolean
+
+ ti,no-idle:
+ description: Interconnect target module shall not be idled
+ type: boolean
+
+ ti,hwmods:
+ description: Interconnect module name to use with legacy hwmod data
+ $ref: /schemas/types.yaml#/definitions/string
+ deprecated: true
+
+required:
+ - compatible
+ - '#address-cells'
+ - '#size-cells'
+ - ranges
+
+additionalProperties: true
+
+examples:
+ - |
+ #include <dt-bindings/bus/ti-sysc.h>
+ #include <dt-bindings/clock/omap4.h>
+
+ target-module at 2b000 {
+ compatible = "ti,sysc-omap2", "ti,sysc";
+ ti,hwmods = "usb_otg_hs";
+ reg = <0x2b400 0x4>,
+ <0x2b404 0x4>,
+ <0x2b408 0x4>;
+ reg-names = "rev", "sysc", "syss";
+ clocks = <&l3_init_clkctrl OMAP4_USB_OTG_HS_CLKCTRL 0>;
+ clock-names = "fck";
+ ti,sysc-mask = <(SYSC_OMAP2_ENAWAKEUP |
+ SYSC_OMAP2_SOFTRESET |
+ SYSC_OMAP2_AUTOIDLE)>;
+ ti,sysc-midle = <SYSC_IDLE_FORCE>,
+ <SYSC_IDLE_NO>,
+ <SYSC_IDLE_SMART>;
+ ti,sysc-sidle = <SYSC_IDLE_FORCE>,
+ <SYSC_IDLE_NO>,
+ <SYSC_IDLE_SMART>,
+ <SYSC_IDLE_SMART_WKUP>;
+ ti,syss-mask = <1>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x2b000 0x1000>;
+ };
--
2.33.0
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