Driver for ARM AXI Bus with Broadcom Plugins (bcma)
Required properties:
- compatible : brcm,bus-axi
- reg : iomem address range of chipcommon core
The cores on the AXI bus are automatically detected by bcma with the
memory ranges they are using and they get registered afterwards.
Automatic detection of the IRQ number is not working on
BCM47xx/BCM53xx ARM SoCs. To assign IRQ numbers to the cores, provide
them manually through device tree. Use an interrupt-map to specify the
IRQ used by the devices on the bus. The first address is just an index,
because we do not have any special register.
The top-level axi bus may contain children representing attached cores
(devices). This is needed since some hardware details can't be auto
detected (e.g. IRQ numbers). Also some of the cores may be responsible
for extra things, e.g. ChipCommon providing access to the GPIO chip.
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