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- 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.
- 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.
- Example:
- axi@18000000 {
- compatible = "brcm,bus-axi";
- reg = <0x18000000 0x1000>;
- ranges = <0x00000000 0x18000000 0x00100000>;
- #address-cells = <1>;
- #size-cells = <1>;
- chipcommon {
- reg = <0x00000000 0x1000>;
- gpio-controller;
- #gpio-cells = <2>;
- };
- };
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