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Merge branch 'dt' of git://github.com/hzhuang1/linux into next/dt
* 'dt' of git://github.com/hzhuang1/linux: Documentation: update docs for mmp dt ARM: dts: refresh dts file for arch mmp ARM: mmp: support pxa910 with device tree ARM: mmp: support mmp2 with device tree gpio: pxa: parse gpio from DTS file ARM: mmp: support DT in timer ARM: mmp: support DT in irq ARM: mmp: append CONFIG_MACH_MMP2_DT ARM: mmp: fix build issue on mmp with device tree Includes an update to v3-4-rc5 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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@@ -0,0 +1,40 @@
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* Marvell MMP Interrupt controller
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Required properties:
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- compatible : Should be "mrvl,mmp-intc", "mrvl,mmp2-intc" or
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"mrvl,mmp2-mux-intc"
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- reg : Address and length of the register set of the interrupt controller.
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If the interrupt controller is intc, address and length means the range
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of the whold interrupt controller. If the interrupt controller is mux-intc,
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address and length means one register. Since address of mux-intc is in the
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range of intc. mux-intc is secondary interrupt controller.
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- reg-names : Name of the register set of the interrupt controller. It's
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only required in mux-intc interrupt controller.
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- interrupts : Should be the port interrupt shared by mux interrupts. It's
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only required in mux-intc interrupt controller.
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- interrupt-controller : Identifies the node as an interrupt controller.
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- #interrupt-cells : Specifies the number of cells needed to encode an
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interrupt source.
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- mrvl,intc-nr-irqs : Specifies the number of interrupts in the interrupt
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controller.
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- mrvl,clr-mfp-irq : Specifies the interrupt that needs to clear MFP edge
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detection first.
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Example:
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intc: interrupt-controller@d4282000 {
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compatible = "mrvl,mmp2-intc";
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interrupt-controller;
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#interrupt-cells = <1>;
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reg = <0xd4282000 0x1000>;
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mrvl,intc-nr-irqs = <64>;
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};
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intcmux4@d4282150 {
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compatible = "mrvl,mmp2-mux-intc";
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interrupts = <4>;
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interrupt-controller;
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#interrupt-cells = <1>;
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reg = <0x150 0x4>, <0x168 0x4>;
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reg-names = "mux status", "mux mask";
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mrvl,intc-nr-irqs = <2>;
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};
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+8
@@ -4,3 +4,11 @@ Marvell Platforms Device Tree Bindings
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PXA168 Aspenite Board
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Required root node properties:
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- compatible = "mrvl,pxa168-aspenite", "mrvl,pxa168";
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PXA910 DKB Board
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Required root node properties:
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- compatible = "mrvl,pxa910-dkb";
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MMP2 Brownstone Board
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Required root node properties:
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- compatible = "mrvl,mmp2-brownstone";
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@@ -0,0 +1,13 @@
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* Marvell MMP Timer controller
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Required properties:
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- compatible : Should be "mrvl,mmp-timer".
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- reg : Address and length of the register set of timer controller.
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- interrupts : Should be the interrupt number.
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Example:
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timer0: timer@d4014000 {
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compatible = "mrvl,mmp-timer";
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reg = <0xd4014000 0x100>;
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interrupts = <13>;
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};
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@@ -3,19 +3,25 @@
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Required properties:
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- compatible : Should be "mrvl,pxa-gpio" or "mrvl,mmp-gpio"
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- reg : Address and length of the register set for the device
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- interrupts : Should be the port interrupt shared by all gpio pins, if
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- interrupt-name : Should be the name of irq resource.
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one number.
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- interrupts : Should be the port interrupt shared by all gpio pins.
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There're three gpio interrupts in arch-pxa, and they're gpio0,
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gpio1 and gpio_mux. There're only one gpio interrupt in arch-mmp,
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gpio_mux.
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- interrupt-name : Should be the name of irq resource. Each interrupt
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binds its interrupt-name.
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- interrupt-controller : Identifies the node as an interrupt controller.
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- #interrupt-cells: Specifies the number of cells needed to encode an
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interrupt source.
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- gpio-controller : Marks the device node as a gpio controller.
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- #gpio-cells : Should be one. It is the pin number.
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Example:
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gpio: gpio@d4019000 {
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compatible = "mrvl,mmp-gpio", "mrvl,pxa-gpio";
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compatible = "mrvl,mmp-gpio";
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reg = <0xd4019000 0x1000>;
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interrupts = <49>, <17>, <18>;
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interrupt-name = "gpio_mux", "gpio0", "gpio1";
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interrupts = <49>;
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interrupt-name = "gpio_mux";
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gpio-controller;
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#gpio-cells = <1>;
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interrupt-controller;
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@@ -3,34 +3,31 @@
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Required properties :
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- reg : Offset and length of the register set for the device
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- compatible : should be "mrvl,mmp-twsi" where CHIP is the name of a
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- compatible : should be "mrvl,mmp-twsi" where mmp is the name of a
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compatible processor, e.g. pxa168, pxa910, mmp2, mmp3.
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For the pxa2xx/pxa3xx, an additional node "mrvl,pxa-i2c" is required
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as shown in the example below.
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Recommended properties :
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- interrupts : <a b> where a is the interrupt number and b is a
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field that represents an encoding of the sense and level
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information for the interrupt. This should be encoded based on
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the information in section 2) depending on the type of interrupt
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controller you have.
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- interrupts : the interrupt number
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- interrupt-parent : the phandle for the interrupt controller that
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services interrupts for this device.
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services interrupts for this device. If the parent is the default
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interrupt controller in device tree, it could be ignored.
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- mrvl,i2c-polling : Disable interrupt of i2c controller. Polling
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status register of i2c controller instead.
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- mrvl,i2c-fast-mode : Enable fast mode of i2c controller.
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Examples:
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twsi1: i2c@d4011000 {
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compatible = "mrvl,mmp-twsi", "mrvl,pxa-i2c";
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compatible = "mrvl,mmp-twsi";
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reg = <0xd4011000 0x1000>;
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interrupts = <7>;
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mrvl,i2c-fast-mode;
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};
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twsi2: i2c@d4025000 {
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compatible = "mrvl,mmp-twsi", "mrvl,pxa-i2c";
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compatible = "mrvl,mmp-twsi";
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reg = <0xd4025000 0x1000>;
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interrupts = <58>;
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};
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