| BCM2835 Top-Level ("ARMCTRL") Interrupt Controller |
| |
| 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. |
| |
| Required properties: |
| |
| - compatible : should be "brcm,bcm2835-armctrl-ic.txt" |
| - reg : Specifies base physical address and size of the registers. |
| - interrupt-controller : Identifies the node as an interrupt controller |
| - #interrupt-cells : Specifies the number of cells needed to encode an |
| interrupt source. The value shall be 2. |
| |
| 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. |
| |
| 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 |
| 28: DMA12 |
| 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 |
| |
| Example: |
| |
| intc: interrupt-controller { |
| compatible = "brcm,bcm2835-armctrl-ic"; |
| reg = <0x7e00b200 0x200>; |
| interrupt-controller; |
| #interrupt-cells = <2>; |
| }; |