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