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1Driver for ARM AXI Bus with Broadcom Plugins (bcma)
2
3Required properties:
4
5- compatible : brcm,bus-axi
6
7- reg : iomem address range of chipcommon core
8
9The cores on the AXI bus are automatically detected by bcma with the
10memory ranges they are using and they get registered afterwards.
11
12The top-level axi bus may contain children representing attached cores
13(devices). This is needed since some hardware details can't be auto
14detected (e.g. IRQ numbers). Also some of the cores may be responsible
15for extra things, e.g. ChipCommon providing access to the GPIO chip.
16
17Example:
18
19 axi@18000000 {
20 compatible = "brcm,bus-axi";
21 reg = <0x18000000 0x1000>;
22 ranges = <0x00000000 0x18000000 0x00100000>;
23 #address-cells = <1>;
24 #size-cells = <1>;
25
26 chipcommon {
27 reg = <0x00000000 0x1000>;
28
29 gpio-controller;
30 #gpio-cells = <2>;
31 };
32 };