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authorArnd Bergmann <arnd@arndb.de>2012-10-05 00:57:00 +0400
committerArnd Bergmann <arnd@arndb.de>2012-10-05 00:57:51 +0400
commitc37d6154c0b9163c27e53cc1d0be3867b4abd760 (patch)
tree7a24522c56d1cb284dff1d3c225bbdaba0901bb5 /Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
parente7a570ff7dff9af6e54ff5e580a61ec7652137a0 (diff)
parent8a1ab3155c2ac7fbe5f2038d6e26efeb607a1498 (diff)
downloadlinux-c37d6154c0b9163c27e53cc1d0be3867b4abd760.tar.xz
Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic
Patches from David Howells <dhowells@redhat.com>: This is to complete part of the UAPI disintegration for which the preparatory patches were pulled recently. Note that there are some fixup patches which are at the base of the branch aimed at you, plus all arches get the asm-generic branch merged in too. * 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: (Scripted) Disintegrate include/asm-generic UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k) c6x: remove c6x signal.h UAPI: Split compound conditionals containing __KERNEL__ in Arm64 UAPI: Fix the guards on various asm/unistd.h files Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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+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>;
+};