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dt-bindings: mailbox: Document armada-3700-rwtm-mailbox binding 

This adds device tree binding documentation for the rWTM BIU mailbox
driver on the Armada 37xx SOC (EspressoBin, Turris Mox).

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
This commit is contained in:
Marek Behun 2019-03-31 05:15:32 +02:00 committed by Jassi Brar
parent 68a1c8485c
commit 004c35cd8e
1 changed files with 16 additions and 0 deletions
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Documentation/devicetree/bindings/mailbox/marvell,armada-3700-rwtm-mailbox.txt Normal file
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* rWTM BIU Mailbox driver for Armada 37xx
Required properties:
- compatible: must be "marvell,armada-3700-rwtm-mailbox"
- reg: physical base address of the mailbox and length of memory mapped
region
- interrupts: the IRQ line for the mailbox
- #mbox-cells: must be 1
Example:
rwtm: mailbox@b0000 {
compatible = "marvell,armada-3700-rwtm-mailbox";
reg = <0xb0000 0x100>;
interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
#mbox-cells = <1>;
};