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dt-bindings: rtc: Add on-chip ASPEED RTC documentation 

Describe the RTC as used in the ASPEED BMC SoCs.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Joel Stanley 2019-03-27 11:32:14 +10:30 committed by Alexandre Belloni
parent 9a8f2d12ff
commit e3b371109e
1 changed files with 22 additions and 0 deletions
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Documentation/devicetree/bindings/rtc/rtc-aspeed.txt Normal file
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ASPEED BMC RTC
==============
Required properties:
- compatible: should be one of the following
* aspeed,ast2400-rtc for the ast2400
* aspeed,ast2500-rtc for the ast2500
* aspeed,ast2600-rtc for the ast2600
- reg: physical base address of the controller and length of memory mapped
region
- interrupts: The interrupt number
Example:
rtc@1e781000 {
compatible = "aspeed,ast2400-rtc";
reg = <0x1e781000 0x18>;
interrupts = <22>;
status = "disabled";
};