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arm: mvebu: enable gpio expander over i2c on Mirabox platform

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The Globalscale Mirabox platform can be connected to the JTAG/GPIO box
through the Multi-IO port. The GPIO box use the NXP PCA9505 I/O port
expansion IC to provide 40-bit parallel input/output GPIOs. This patch
enable the use of this expander on the Mirabox.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Gregory CLEMENT 2013-01-22 22:10:25 +01:00 committed by Jason Cooper
parent f6161aa153
commit 66bcb58ba4
1 changed files with 11 additions and 0 deletions
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11
arch/arm/boot/dts/armada-370-mirabox.dts
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@ -70,5 +70,16 @@
usb@d0051000 {
status = "okay";
};
i2c@d0011000 {
status = "okay";
clock-frequency = <100000>;
pca9505: pca9505@25 {
compatible = "nxp,pca9505";
gpio-controller;
#gpio-cells = <2>;
reg = <0x25>;
};
};
};
};