[PATCH v2 2/2] dt-binding: mtd: physmap: Add example using addr-gpios property

Chris Packham
2019-03-29T02:13:54Z

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>
---
Changes in v2:
- None

.../devicetree/bindings/mtd/mtd-physmap.txt | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/mtd-physmap.txt b/Documentation/devicetree/bindings/mtd/mtd-physmap.txt
index 7df0dcaccb7d..c69f4f065d23 100644
--- a/Documentation/devicetree/bindings/mtd/mtd-physmap.txt
+++ b/Documentation/devicetree/bindings/mtd/mtd-physmap.txt
@@ -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>;
+ };
+ };
--
2.21.0