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mfd: syscon: Add Atmel Matrix bus DT binding documentation

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The Matrix registers are provided to configure internal bus behavior on
at91 SoCs.
Some registers might be accessed by several drivers (e.g. to configure
external memory bus timings), hence we declare this register set as a
syscon device.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Boris Brezillon 2015-01-14 17:21:54 +01:00 committed by Nicolas Ferre
parent 92a8b064fd
commit b2c8b97678
1 changed files with 24 additions and 0 deletions
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Documentation/devicetree/bindings/mfd/atmel-matrix.txt Normal file
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* Device tree bindings for Atmel Bus Matrix
The Bus Matrix registers are used to configure Atmel SoCs internal bus
behavior (master/slave priorities, undefined burst length type, ...)
Required properties:
- compatible: Should be one of the following
"atmel,at91sam9260-matrix", "syscon"
"atmel,at91sam9261-matrix", "syscon"
"atmel,at91sam9263-matrix", "syscon"
"atmel,at91sam9rl-matrix", "syscon"
"atmel,at91sam9g45-matrix", "syscon"
"atmel,at91sam9n12-matrix", "syscon"
"atmel,at91sam9x5-matrix", "syscon"
"atmel,sama5d3-matrix", "syscon"
- reg: Contains offset/length value of the Bus Matrix
memory region.
Example:
matrix: matrix@ffffec00 {
compatible = "atmel,sama5d3-matrix", "syscon";
reg = <0xffffec00 0x200>;
};