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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-02-05 18:32:37 +0800
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-03-15 23:29:43 +0800
commit8f24bdaac9547b40f94824bd63c44ead9ea5a211 (patch)
treed9e8b33081d45e4451c4caefc10ff00e9cb53dad /arch/arm/boot
parentb71e1b75d6e22bfed94a2a8879d7f7a30b3e3dde (diff)
ARM: at91: sam9g45 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')
-rw-r--r--arch/arm/boot/dts/at91sam9g45.dtsi13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index d79021b831c4..92fe5a5c0eee 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -197,4 +197,17 @@
status = "disabled";
};
};
+
+ i2c@0 {
+ compatible = "i2c-gpio";
+ gpios = <&pioA 20 0 /* sda */
+ &pioA 21 0 /* scl */
+ >;
+ i2c-gpio,sda-open-drain;
+ i2c-gpio,scl-open-drain;
+ i2c-gpio,delay-us = <5>; /* ~100 kHz */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
};