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Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.yaml')
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diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.yaml b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.yaml new file mode 100644 index 000000000000..625eb22bedf0 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.yaml @@ -0,0 +1,162 @@ +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interrupt-controller/brcm,bcm2835-armctrl-ic.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: BCM2835 ARMCTRL Interrupt Controller + +maintainers: + - Florian Fainelli <florian.fainelli@broadcom.com> + - Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com> + +description: > + The BCM2835 contains a custom top-level interrupt controller, which supports + 72 interrupt sources using a 2-level register scheme. The interrupt + controller, or the HW block containing it, is referred to occasionally as + "armctrl" in the SoC documentation, hence naming of this binding. + + The BCM2836 contains the same interrupt controller with the same interrupts, + but the per-CPU interrupt controller is the root, and an interrupt there + indicates that the ARMCTRL has an interrupt to handle. + + The interrupt sources are as follows: + + Bank 0: + 0: ARM_TIMER + 1: ARM_MAILBOX + 2: ARM_DOORBELL_0 + 3: ARM_DOORBELL_1 + 4: VPU0_HALTED + 5: VPU1_HALTED + 6: ILLEGAL_TYPE0 + 7: ILLEGAL_TYPE1 + + Bank 1: + 0: TIMER0 + 1: TIMER1 + 2: TIMER2 + 3: TIMER3 + 4: CODEC0 + 5: CODEC1 + 6: CODEC2 + 7: VC_JPEG + 8: ISP + 9: VC_USB + 10: VC_3D + 11: TRANSPOSER + 12: MULTICORESYNC0 + 13: MULTICORESYNC1 + 14: MULTICORESYNC2 + 15: MULTICORESYNC3 + 16: DMA0 + 17: DMA1 + 18: VC_DMA2 + 19: VC_DMA3 + 20: DMA4 + 21: DMA5 + 22: DMA6 + 23: DMA7 + 24: DMA8 + 25: DMA9 + 26: DMA10 + 27: DMA11-14 - shared interrupt for DMA 11 to 14 + 28: DMAALL - triggers on all dma interrupts (including channel 15) + 29: AUX + 30: ARM + 31: VPUDMA + + Bank 2: + 0: HOSTPORT + 1: VIDEOSCALER + 2: CCP2TX + 3: SDC + 4: DSI0 + 5: AVE + 6: CAM0 + 7: CAM1 + 8: HDMI0 + 9: HDMI1 + 10: PIXELVALVE1 + 11: I2CSPISLV + 12: DSI1 + 13: PWA0 + 14: PWA1 + 15: CPR + 16: SMI + 17: GPIO0 + 18: GPIO1 + 19: GPIO2 + 20: GPIO3 + 21: VC_I2C + 22: VC_SPI + 23: VC_I2SPCM + 24: VC_SDIO + 25: VC_UART + 26: SLIMBUS + 27: VEC + 28: CPG + 29: RNG + 30: VC_ARASANSDIO + 31: AVSPMON + +properties: + compatible: + enum: + - brcm,bcm2835-armctrl-ic + - brcm,bcm2836-armctrl-ic + + reg: + maxItems: 1 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + description: > + The 1st cell is the interrupt bank; 0 for interrupts in the "IRQ basic + pending" register, or 1/2 respectively for interrupts in the "IRQ pending + 1/2" register. + + The 2nd cell contains the interrupt number within the bank. Valid values + are 0..7 for bank 0, and 0..31 for bank 1. + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - interrupt-controller + - '#interrupt-cells' + +allOf: + - if: + properties: + compatible: + contains: + const: brcm,bcm2836-armctrl-ic + then: + required: + - interrupts + else: + properties: + interrupts: false + +additionalProperties: false + +examples: + - | + interrupt-controller@7e00b200 { + compatible = "brcm,bcm2835-armctrl-ic"; + reg = <0x7e00b200 0x200>; + interrupt-controller; + #interrupt-cells = <2>; + }; + - | + interrupt-controller@7e00b200 { + compatible = "brcm,bcm2836-armctrl-ic"; + reg = <0x7e00b200 0x200>; + interrupt-controller; + #interrupt-cells = <2>; + interrupts = <8>; + }; |