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Merge branch 'at91-3.4-cleanup2+DT' of git://github.com/at91linux/lin…
…ux-at91 into next/dt * 'at91-3.4-cleanup2+DT' of git://github.com/at91linux/linux-at91: (22 commits) ARM: at91: at91sam9x5cm/dt: add leds support ARM: at91: usb_a9g20/dt: add gpio-keys support ARM: at91: at91sam9m10g45ek/dt: add gpio-keys support ARM: at91: at91sam9m10g45ek/dt: add leds support ARM: at91: usb_a9g20/dt: add leds support ARM: at91/pio: add new PIO3 features ARM: at91: add sam9_smc.o to at91sam9x5 build ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter ARM: at91/tc: add device tree support to atmel_tclib ARM: at91/tclib: take iomem size from resource ARM: at91/pit: add traces in case of error ARM: at91: pit add DT support ARM: at91: AIC and GPIO IRQ device tree initialization ARM: at91/board-dt: remove AIC irq domain from board file ARM: at91/gpio: remove the static specification of gpio_chip.base ARM: at91/gpio: add .to_irq gpio_chip handler ARM: at91/gpio: non-DT builds do not have gpio_chip.of_node field ARM: at91/gpio: add irqdomain and DT support ARM: at91/gpio: change comments and one variable name ARM/USB: at91/ohci-at91: remove the use of irq_to_gpio ...
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| * Advanced Interrupt Controller (AIC) | ||
|
|
||
| Required properties: | ||
| - compatible: Should be "atmel,<chip>-aic" | ||
| - interrupt-controller: Identifies the node as an interrupt controller. | ||
| - interrupt-parent: For single AIC system, it is an empty property. | ||
| - #interrupt-cells: The number of cells to define the interrupts. It sould be 2. | ||
| The first cell is the IRQ number (aka "Peripheral IDentifier" on datasheet). | ||
| The second cell is used to specify flags: | ||
| bits[3:0] trigger type and level flags: | ||
| 1 = low-to-high edge triggered. | ||
| 2 = high-to-low edge triggered. | ||
| 4 = active high level-sensitive. | ||
| 8 = active low level-sensitive. | ||
| Valid combinations are 1, 2, 3, 4, 8. | ||
| Default flag for internal sources should be set to 4 (active high). | ||
| - reg: Should contain AIC registers location and length | ||
|
|
||
| Examples: | ||
| /* | ||
| * AIC | ||
| */ | ||
| aic: interrupt-controller@fffff000 { | ||
| compatible = "atmel,at91rm9200-aic"; | ||
| interrupt-controller; | ||
| interrupt-parent; | ||
| #interrupt-cells = <2>; | ||
| reg = <0xfffff000 0x200>; | ||
| }; | ||
|
|
||
| /* | ||
| * An interrupt generating device that is wired to an AIC. | ||
| */ | ||
| dma: dma-controller@ffffec00 { | ||
| compatible = "atmel,at91sam9g45-dma"; | ||
| reg = <0xffffec00 0x200>; | ||
| interrupts = <21 4>; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
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| Atmel AT91 device tree bindings. | ||
| ================================ | ||
|
|
||
| PIT Timer required properties: | ||
| - compatible: Should be "atmel,at91sam9260-pit" | ||
| - reg: Should contain registers location and length | ||
| - interrupts: Should contain interrupt for the PIT which is the IRQ line | ||
| shared across all System Controller members. | ||
|
|
||
| TC/TCLIB Timer required properties: | ||
| - compatible: Should be "atmel,<chip>-pit". | ||
| <chip> can be "at91rm9200" or "at91sam9x5" | ||
| - reg: Should contain registers location and length | ||
| - interrupts: Should contain all interrupts for the TC block | ||
| Note that you can specify several interrupt cells if the TC | ||
| block has one interrupt per channel. | ||
|
|
||
| Examples: | ||
|
|
||
| One interrupt per TC block: | ||
| tcb0: timer@fff7c000 { | ||
| compatible = "atmel,at91rm9200-tcb"; | ||
| reg = <0xfff7c000 0x100>; | ||
| interrupts = <18 4>; | ||
| }; | ||
|
|
||
| One interrupt per TC channel in a TC block: | ||
| tcb1: timer@fffdc000 { | ||
| compatible = "atmel,at91rm9200-tcb"; | ||
| reg = <0xfffdc000 0x100>; | ||
| interrupts = <26 4 27 4 28 4>; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,20 @@ | ||
| * Atmel GPIO controller (PIO) | ||
|
|
||
| Required properties: | ||
| - compatible: "atmel,<chip>-gpio", where <chip> is at91rm9200 or at91sam9x5. | ||
| - reg: Should contain GPIO controller registers location and length | ||
| - interrupts: Should be the port interrupt shared by all the pins. | ||
| - #gpio-cells: Should be two. The first cell is the pin number and | ||
| the second cell is used to specify optional parameters (currently | ||
| unused). | ||
| - gpio-controller: Marks the device node as a GPIO controller. | ||
|
|
||
| Example: | ||
| pioA: gpio@fffff200 { | ||
| compatible = "atmel,at91rm9200-gpio"; | ||
| reg = <0xfffff200 0x100>; | ||
| interrupts = <2 4>; | ||
| #gpio-cells = <2>; | ||
| gpio-controller; | ||
| }; | ||
|
|
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