35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
Broadcom GISB bus Arbiter controller
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Required properties:
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- compatible:
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"brcm,gisb-arb" or "brcm,bcm7445-gisb-arb" for 28nm chips
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"brcm,bcm7435-gisb-arb" for newer 40nm chips
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"brcm,bcm7400-gisb-arb" for older 40nm chips and all 65nm chips
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"brcm,bcm7038-gisb-arb" for 130nm chips
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- reg: specifies the base physical address and size of the registers
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- interrupt-parent: specifies the phandle to the parent interrupt controller
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this arbiter gets interrupt line from
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- interrupts: specifies the two interrupts (timeout and TEA) to be used from
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the parent interrupt controller
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Optional properties:
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- brcm,gisb-arb-master-mask: 32-bits wide bitmask used to specify which GISB
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masters are valid at the system level
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- brcm,gisb-arb-master-names: string list of the litteral name of the GISB
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masters. Should match the number of bits set in brcm,gisb-master-mask and
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the order in which they appear
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Example:
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gisb-arb@f0400000 {
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compatible = "brcm,gisb-arb";
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reg = <0xf0400000 0x800>;
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interrupts = <0>, <2>;
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interrupt-parent = <&sun_l2_intc>;
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brcm,gisb-arb-master-mask = <0x7>;
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brcm,gisb-arb-master-names = "bsp_0", "scpu_0", "cpu_0";
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};
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