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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-02-05 14:25:33 +0400
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-03-15 19:29:32 +0400
commit3b3f8280399c67c592e973193bf3f36a8cab75a0 (patch)
tree8d0b07425177b431bf66cbbb89209ae1d9f6fb89 /arch/arm/boot/dts
parent8ffaa0f40db22564efc44588a9d861d78a1fae02 (diff)
downloadlinux-3b3f8280399c67c592e973193bf3f36a8cab75a0.tar.xz
ARM: at91: sam9g20 add i2c DT support
For now on use i2c-gpio driver on the same pin as the hardware IP. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Rob Herring <rob.herring@calxeda.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/boot/dts')
-rw-r--r--arch/arm/boot/dts/at91sam9g20.dtsi13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi
index 4b0dc99b9319..a885a30d1c82 100644
--- a/arch/arm/boot/dts/at91sam9g20.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20.dtsi
@@ -189,4 +189,17 @@
status = "disabled";
};
};
+
+ i2c@0 {
+ compatible = "i2c-gpio";
+ gpios = <&pioA 23 0 /* sda */
+ &pioA 24 0 /* scl */
+ >;
+ i2c-gpio,sda-open-drain;
+ i2c-gpio,scl-open-drain;
+ i2c-gpio,delay-us = <2>; /* ~100 kHz */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
};