linux_dsm_epyc7002/arch/arm/boot/dts/bcm2835-rpi-b.dts
Stephen Warren 805504abdc 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>
2012-10-25 20:42:51 -06:00

28 lines
468 B
Plaintext

/dts-v1/;
/memreserve/ 0x0c000000 0x04000000;
/include/ "bcm2835.dtsi"
/ {
compatible = "raspberrypi,model-b", "brcm,bcm2835";
model = "Raspberry Pi Model B";
memory {
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 */
};
};