dt-bindings: fsl: scu: add rtc binding

NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as
system controller, the system controller is in charge of system
power, clock and secure RTC etc. management, Linux kernel
has to communicate with system controller via MU (message unit)
IPC to do RTC operation, this patch adds binding doc for i.MX
system controller RTC driver.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Anson Huang 2018-12-20 08:56:07 +00:00 committed by Alexandre Belloni
parent 3c3d71013c
commit 2ea44ca1ff

View File

@ -114,6 +114,12 @@ Required properties for Pinctrl sub nodes:
[2] Documentation/devicetree/bindings/power/power_domain.txt
[3] Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
RTC bindings based on SCU Message Protocol
------------------------------------------------------------
Required properties:
- compatible: should be "fsl,imx8qxp-sc-rtc";
Example (imx8qxp):
-------------
lsio_mu1: mailbox@5d1c0000 {
@ -169,6 +175,10 @@ firmware {
};
...
};
rtc: rtc {
compatible = "fsl,imx8qxp-sc-rtc";
};
};
};