From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang <yunhong.jiang@intel.com> Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> --- .../devicetree/bindings/gpio/mrvl-gpio.txt | 69 ++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 kernel/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt (limited to 'kernel/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt') diff --git a/kernel/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt b/kernel/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt new file mode 100644 index 000000000..98d198396 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt @@ -0,0 +1,69 @@ +* Marvell PXA GPIO controller + +Required properties: +- compatible : Should be "intel,pxa25x-gpio", "intel,pxa26x-gpio", + "intel,pxa27x-gpio", "intel,pxa3xx-gpio", + "marvell,pxa93x-gpio", "marvell,mmp-gpio", + "marvell,mmp2-gpio" or marvell,pxa1928-gpio. +- reg : Address and length of the register set for the device +- interrupts : Should be the port interrupt shared by all gpio pins. + There're three gpio interrupts in arch-pxa, and they're gpio0, + gpio1 and gpio_mux. There're only one gpio interrupt in arch-mmp, + gpio_mux. +- interrupt-names : Should be the names of irq resources. Each interrupt + uses its own interrupt name, so there should be as many interrupt names + as referenced interrupts. +- interrupt-controller : Identifies the node as an interrupt controller. +- #interrupt-cells: Specifies the number of cells needed to encode an + interrupt source. +- gpio-controller : Marks the device node as a gpio controller. +- #gpio-cells : Should be one. It is the pin number. + +Example for a MMP platform: + + gpio: gpio@d4019000 { + compatible = "marvell,mmp-gpio"; + reg = <0xd4019000 0x1000>; + interrupts = <49>; + interrupt-names = "gpio_mux"; + gpio-controller; + #gpio-cells = <1>; + interrupt-controller; + #interrupt-cells = <1>; + }; + +Example for a PXA3xx platform: + + gpio: gpio@40e00000 { + compatible = "intel,pxa3xx-gpio"; + reg = <0x40e00000 0x10000>; + interrupt-names = "gpio0", "gpio1", "gpio_mux"; + interrupts = <8 9 10>; + gpio-controller; + #gpio-cells = <0x2>; + interrupt-controller; + #interrupt-cells = <0x2>; + }; + +* Marvell Orion GPIO Controller + +Required properties: +- compatible : Should be "marvell,orion-gpio" +- reg : Address and length of the register set for controller. +- gpio-controller : So we know this is a gpio controller. +- ngpio : How many gpios this controller has. +- interrupts : Up to 4 Interrupts for the controller. + +Optional properties: +- mask-offset : For SMP Orions, offset for Nth CPU + +Example: + + gpio0: gpio@10100 { + compatible = "marvell,orion-gpio"; + #gpio-cells = <2>; + gpio-controller; + reg = <0x10100 0x40>; + ngpio = <32>; + interrupts = <35>, <36>, <37>, <38>; + }; -- cgit