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51 lines
1.4 KiB
51 lines
1.4 KiB
Hisilicon Hi3660 Mailbox Controller |
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Hisilicon Hi3660 mailbox controller supports up to 32 channels. Messages |
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are passed between processors, including application & communication |
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processors, MCU, HIFI, etc. Each channel is unidirectional and accessed |
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by using MMIO registers; it supports maximum to 8 words message. |
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Controller |
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---------- |
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Required properties: |
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- compatible: : Shall be "hisilicon,hi3660-mbox" |
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- reg: : Offset and length of the device's register set |
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- #mbox-cells: : Must be 3 |
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<&phandle channel dst_irq ack_irq> |
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phandle : Label name of controller |
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channel : Channel number |
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dst_irq : Remote interrupt vector |
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ack_irq : Local interrupt vector |
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- interrupts: : Contains the two IRQ lines for mailbox. |
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Example: |
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mailbox: mailbox@e896b000 { |
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compatible = "hisilicon,hi3660-mbox"; |
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reg = <0x0 0xe896b000 0x0 0x1000>; |
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interrupts = <0x0 0xc0 0x4>, |
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<0x0 0xc1 0x4>; |
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#mbox-cells = <3>; |
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}; |
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Client |
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------ |
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Required properties: |
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- compatible : See the client docs |
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- mboxes : Standard property to specify a Mailbox (See ./mailbox.txt) |
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Cells must match 'mbox-cells' (See Controller docs above) |
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Optional properties |
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- mbox-names : Name given to channels seen in the 'mboxes' property. |
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Example: |
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stub_clock: stub_clock@e896b500 { |
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compatible = "hisilicon,hi3660-stub-clk"; |
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reg = <0x0 0xe896b500 0x0 0x0100>; |
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#clock-cells = <1>; |
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mboxes = <&mailbox 13 3 0>; |
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};
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