diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-07 03:20:14 +0300 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-07 03:20:14 +0300 |
commit | 28da7be5ebc096ada5e6bc526c623bdd8c47800a (patch) | |
tree | 0714d6ca447818cc1aa348ae538ed18a901512df /Documentation/devicetree/bindings/mailbox | |
parent | 9eda2d2dca830f0f8923b1f377d0fb70f576af1d (diff) | |
parent | 41c0e939d70ddb6860e340e7532df8984783f867 (diff) | |
download | linux-28da7be5ebc096ada5e6bc526c623bdd8c47800a.tar.xz |
Merge tag 'mailbox-v4.17' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
- New Hi3660 mailbox driver
- Fix TEGRA Kconfig warning
- Broadcom: use dma_pool_zalloc instead of dma_pool_alloc+memset
* tag 'mailbox-v4.17' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: Add support for Hi3660 mailbox
dt-bindings: mailbox: Introduce Hi3660 controller binding
mailbox: tegra: relax TEGRA_HSP_MBOX Kconfig dependencies
maillbox: bcm-flexrm-mailbox: Use dma_pool_zalloc()
Diffstat (limited to 'Documentation/devicetree/bindings/mailbox')
-rw-r--r-- | Documentation/devicetree/bindings/mailbox/hisilicon,hi3660-mailbox.txt | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mailbox/hisilicon,hi3660-mailbox.txt b/Documentation/devicetree/bindings/mailbox/hisilicon,hi3660-mailbox.txt new file mode 100644 index 000000000000..3e5b4537407d --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/hisilicon,hi3660-mailbox.txt @@ -0,0 +1,51 @@ +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>; +}; |