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Date: Thu, 28 Mar 2019 17:02:16 +1300
From: Chris Packham <chris.packham@...iedtelesis.co.nz>
To: bbrezillon@...nel.org, computersforpeace@...il.com,
dwmw2@...radead.org, marek.vasut@...il.com, richard@....at,
robh+dt@...nel.org, mark.rutland@....com
Cc: linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH 2/2] 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@...r.kernel.org
Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---
.../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@...00000 {
+ #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
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