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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-02-23 18:50:32 +0400
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-03-15 19:29:48 +0400
commit10f71c28b66e6b22e46386c265147eff76e3d7a5 (patch)
treecaee6e979e51b93989ce39d40915572b03bb2e06 /arch/arm/boot/dts
parent8f24bdaac9547b40f94824bd63c44ead9ea5a211 (diff)
downloadlinux-10f71c28b66e6b22e46386c265147eff76e3d7a5.tar.xz
ARM: at91: sam9x5 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/at91sam9x5.dtsi39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index c294657a1f7e..f0104f4e6ab4 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -188,4 +188,43 @@
status = "disabled";
};
};
+
+ i2c@0 {
+ compatible = "i2c-gpio";
+ gpios = <&pioA 30 0 /* sda */
+ &pioA 31 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";
+ };
+
+ i2c@1 {
+ compatible = "i2c-gpio";
+ gpios = <&pioC 0 0 /* sda */
+ &pioC 1 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";
+ };
+
+ i2c@2 {
+ compatible = "i2c-gpio";
+ gpios = <&pioB 4 0 /* sda */
+ &pioB 5 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";
+ };
};