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authorStephen Warren <swarren@wwwdotorg.org>2012-09-27 21:54:21 -0600
committerStephen Warren <swarren@wwwdotorg.org>2012-10-25 20:42:51 -0600
commit805504abdc73cfc745a5fee3d616cdb24bb2a68c (patch)
treeb531ce1bcc94b540d783b8153f90567dd3c735cc /arch/arm/boot/dts/bcm2835-rpi-b.dts
parentd0f1c7ffaa32bdda2d413d2db41c51bbdd105834 (diff)
downloadtalos-op-linux-805504abdc73cfc745a5fee3d616cdb24bb2a68c.tar.gz
talos-op-linux-805504abdc73cfc745a5fee3d616cdb24bb2a68c.zip
ARM: bcm2835: enable GPIO/pinctrl
Enable GPIO and pinctrl in Kconfig. Add required <mach/gpio.h> for gpiolib. Instantiate the BCM2835 GPIO module in bcm2835.dtsi. Add a pinctrl definition to bcm2835-rpi-b.dts that sets up all of the board's required pinmux configuration. GPIO aren't specified; that's left to gpio_request(). Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/boot/dts/bcm2835-rpi-b.dts')
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-b.dts15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts
index 7dd860f83f96..9b72054a0bc0 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts
@@ -10,3 +10,18 @@
reg = <0 0x10000000>;
};
};
+
+&gpio {
+ pinctrl-names = "default";
+ pinctrl-0 = <&alt0 &alt3>;
+
+ alt0: alt0 {
+ brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11 14 15 40 45>;
+ brcm,function = <4>; /* alt0 */
+ };
+
+ alt3: alt3 {
+ brcm,pins = <48 49 50 51 52 53>;
+ brcm,function = <7>; /* alt3 */
+ };
+};
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