ARM: kirkwood: add i2c-gpio controller for km_kirkwood

This controller is used to access the reset management FPGA of the
km_kirkwood boards.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

diff --git a/arch/arm/boot/dts/kirkwood-km_kirkwood.dts b/arch/arm/boot/dts/kirkwood-km_kirkwood.dts
index 66b971b..5d9f5ea 100644 (file)
--- a/arch/arm/boot/dts/kirkwood-km_kirkwood.dts
+++ b/arch/arm/boot/dts/kirkwood-km_kirkwood.dts
@@ -42,4 +42,11 @@
                        chip-delay = <25>;
                };
        };
+
+       i2c@0 {
+               compatible = "i2c-gpio";
+               gpios = < &gpio0 8 0            /* sda */
+                       &gpio0 9 0 >;           /* scl */
+               i2c-gpio,delay-us = <2>;        /* ~100 kHz */
+       };
 };