diff options
| author | Olof Johansson <olof@lixom.net> | 2012-11-21 00:48:30 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-11-21 02:13:09 -0800 |
| commit | ea091f6dbd2e5df03b6bbb11467c553ebedd16a2 (patch) | |
| tree | ca56b1edbba82dd2ff2e02bc21af279893955c4d /arch/arm/boot | |
| parent | ef173de1239afa32e7209c375a703da8c6cc7a7c (diff) | |
| parent | 805504abdc73cfc745a5fee3d616cdb24bb2a68c (diff) | |
Merge tag 'bcm2835-for-3.8-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-rpi into next/soc
From Stephen Warren:
ARM: bcm2835: core SoC enhancements
A machine restart/reboot implementation is added. The GPIO/pinmux
controller is instantiated, and dummy gpio.h added.
* tag 'bcm2835-for-3.8-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-rpi:
ARM: bcm2835: enable GPIO/pinctrl
ARM: bcm2835: implement machine restart hook
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/boot')
| -rw-r--r-- | arch/arm/boot/dts/bcm2835-rpi-b.dts | 15 | ||||
| -rw-r--r-- | arch/arm/boot/dts/bcm2835.dtsi | 28 |
2 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts index 7dd860f83f9..9b72054a0bc 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 */ + }; +}; diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi index 0b619398532..8917550fd1b 100644 --- a/arch/arm/boot/dts/bcm2835.dtsi +++ b/arch/arm/boot/dts/bcm2835.dtsi @@ -29,11 +29,39 @@ #interrupt-cells = <2>; }; + watchdog { + compatible = "brcm,bcm2835-pm-wdt"; + reg = <0x7e100000 0x28>; + }; + uart@20201000 { compatible = "brcm,bcm2835-pl011", "arm,pl011", "arm,primecell"; reg = <0x7e201000 0x1000>; interrupts = <2 25>; clock-frequency = <3000000>; }; + + gpio: gpio { + compatible = "brcm,bcm2835-gpio"; + reg = <0x7e200000 0xb4>; + /* + * The GPIO IP block is designed for 3 banks of GPIOs. + * Each bank has a GPIO interrupt for itself. + * There is an overall "any bank" interrupt. + * In order, these are GIC interrupts 17, 18, 19, 20. + * Since the BCM2835 only has 2 banks, the 2nd bank + * interrupt output appears to be mirrored onto the + * 3rd bank's interrupt signal. + * So, a bank0 interrupt shows up on 17, 20, and + * a bank1 interrupt shows up on 18, 19, 20! + */ + interrupts = <2 17>, <2 18>, <2 19>, <2 20>; + + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + }; }; }; |