diff options
Diffstat (limited to 'Documentation/devicetree/bindings/mailbox/fsl,mu.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/mailbox/fsl,mu.yaml | 121 |
1 files changed, 111 insertions, 10 deletions
diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml index 3b35eb5ac3f9..00631afcd51d 100644 --- a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml +++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml @@ -26,26 +26,47 @@ properties: oneOf: - const: fsl,imx6sx-mu - const: fsl,imx7ulp-mu + - const: fsl,imx8ulp-mu - const: fsl,imx8-mu-scu + - const: fsl,imx8-mu-seco + - const: fsl,imx8ulp-mu-s4 + - const: fsl,imx93-mu-s4 + - const: fsl,imx95-mu + - const: fsl,imx95-mu-ele + - const: fsl,imx95-mu-v2x + - items: + - const: fsl,imx93-mu + - const: fsl,imx8ulp-mu - items: - enum: - - fsl,imx7s-mu - - fsl,imx8mq-mu - - fsl,imx8mm-mu - - fsl,imx8mn-mu - - fsl,imx8mp-mu - - fsl,imx8qxp-mu + - fsl,imx7s-mu + - fsl,imx8mq-mu + - fsl,imx8mm-mu + - fsl,imx8mn-mu + - fsl,imx8mp-mu + - fsl,imx8qm-mu + - fsl,imx8qxp-mu - const: fsl,imx6sx-mu - description: To communicate with i.MX8 SCU with fast IPC items: - - const: fsl,imx8qxp-mu - const: fsl,imx8-mu-scu + - enum: + - fsl,imx8qm-mu + - fsl,imx8qxp-mu + - const: fsl,imx6sx-mu reg: maxItems: 1 interrupts: - maxItems: 1 + minItems: 1 + maxItems: 2 + + interrupt-names: + minItems: 1 + items: + - const: tx + - const: rx "#mbox-cells": description: | @@ -54,14 +75,17 @@ properties: type : Channel type channel : Channel number - This MU support 4 type of unidirectional channels, each type - has 4 channels. A total of 16 channels. Following types are + This MU support 6 type of unidirectional channels, each type + has 4 channels except RST channel which only has 1 channel. + A total of 21 channels. Following types are supported: 0 - TX channel with 32bit transmit register and IRQ transmit acknowledgment support. 1 - RX channel with 32bit receive register and IRQ support 2 - TX doorbell channel. Without own register and no ACK support. 3 - RX doorbell channel. + 4 - RST channel + 5 - Tx doorbell channel. With S/W ACK from the other side. const: 2 clocks: @@ -71,12 +95,58 @@ properties: description: boolean, if present, means it is for side B MU. type: boolean + power-domains: + maxItems: 1 + + ranges: true + + '#address-cells': + const: 1 + + '#size-cells': + const: 1 + +patternProperties: + "^sram@[a-f0-9]+": + $ref: /schemas/sram/sram.yaml# + unevaluatedProperties: false + required: - compatible - reg - interrupts - "#mbox-cells" +allOf: + - if: + properties: + compatible: + enum: + - fsl,imx93-mu-s4 + then: + properties: + interrupt-names: + minItems: 2 + interrupts: + minItems: 2 + + else: + properties: + interrupts: + maxItems: 1 + not: + required: + - interrupt-names + + - if: + not: + properties: + compatible: + const: fsl,imx95-mu + then: + patternProperties: + "^sram@[a-f0-9]+": false + additionalProperties: false examples: @@ -89,3 +159,34 @@ examples: interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>; #mbox-cells = <2>; }; + + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + mailbox@445b0000 { + compatible = "fsl,imx95-mu"; + reg = <0x445b0000 0x10000>; + ranges; + interrupts = <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>; + #address-cells = <1>; + #size-cells = <1>; + #mbox-cells = <2>; + + sram@445b1000 { + compatible = "mmio-sram"; + reg = <0x445b1000 0x400>; + ranges = <0x0 0x445b1000 0x400>; + #address-cells = <1>; + #size-cells = <1>; + + scmi-sram-section@0 { + compatible = "arm,scmi-shmem"; + reg = <0x0 0x80>; + }; + + scmi-sram-section@80 { + compatible = "arm,scmi-shmem"; + reg = <0x80 0x80>; + }; + }; + }; |