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dt-binding: mtd: physmap: Add example using addr-gpios property 

Add an example showing how to use the addr-gpios property to deal with a
system with limited IO space.

Cc: devicetree@vger.kernel.org
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Chris Packham 2019-03-29 15:13:22 +13:00 committed by Richard Weinberger
parent 64d14c6fe0
commit 6e9314dc05
1 changed files with 16 additions and 0 deletions
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16
Documentation/devicetree/bindings/mtd/mtd-physmap.txt
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@ -96,3 +96,19 @@ An example using SRAM:
bank-width = <2>;
};
An example using gpio-addrs
flash@20000000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "cfi-flash", "jedec-flash";
reg = <0x20000000 0x02000000>;
ranges = <0 0x00000000 0x02000000
1 0x02000000 0x02000000>;
bank-width = <2>;
addr-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
partition@0 {
label = "test-part1";
reg = <0 0x04000000>;
};
};