diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
---|---|---|
committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
commit | b4b7ff4b08e691656c9d77c758fc355833128ac0 (patch) | |
tree | 82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /Documentation/devicetree/bindings/metag/meta-intc.txt | |
parent | 35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff) |
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'Documentation/devicetree/bindings/metag/meta-intc.txt')
-rw-r--r-- | Documentation/devicetree/bindings/metag/meta-intc.txt | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/Documentation/devicetree/bindings/metag/meta-intc.txt b/Documentation/devicetree/bindings/metag/meta-intc.txt deleted file mode 100644 index 80994adab..000000000 --- a/Documentation/devicetree/bindings/metag/meta-intc.txt +++ /dev/null @@ -1,82 +0,0 @@ -* Meta External Trigger Controller Binding - -This binding specifies what properties must be available in the device tree -representation of a Meta external trigger controller. - -Required properties: - - - compatible: Specifies the compatibility list for the interrupt controller. - The type shall be <string> and the value shall include "img,meta-intc". - - - num-banks: Specifies the number of interrupt banks (each of which can - handle 32 interrupt sources). - - - interrupt-controller: The presence of this property identifies the node - as an interrupt controller. No property value shall be defined. - - - #interrupt-cells: Specifies the number of cells needed to encode an - interrupt source. The type shall be a <u32> and the value shall be 2. - - - #address-cells: Specifies the number of cells needed to encode an - address. The type shall be <u32> and the value shall be 0. As such, - 'interrupt-map' nodes do not have to specify a parent unit address. - -Optional properties: - - - no-mask: The controller doesn't have any mask registers. - -* Interrupt Specifier Definition - - Interrupt specifiers consists of 2 cells encoded as follows: - - - <1st-cell>: The interrupt-number that identifies the interrupt source. - - - <2nd-cell>: The Linux interrupt flags containing level-sense information, - encoded as follows: - 1 = edge triggered - 4 = level-sensitive - -* Examples - -Example 1: - - /* - * Meta external trigger block - */ - intc: intc { - // This is an interrupt controller node. - interrupt-controller; - - // No address cells so that 'interrupt-map' nodes which - // reference this interrupt controller node do not need a parent - // address specifier. - #address-cells = <0>; - - // Two cells to encode interrupt sources. - #interrupt-cells = <2>; - - // Number of interrupt banks - num-banks = <2>; - - // No HWMASKEXT is available (specify on Chorus2 and Comet ES1) - no-mask; - - // Compatible with Meta hardware trigger block. - compatible = "img,meta-intc"; - }; - -Example 2: - - /* - * An interrupt generating device that is wired to a Meta external - * trigger block. - */ - uart1: uart@0x02004c00 { - // Interrupt source '5' that is level-sensitive. - // Note that there are only two cells as specified in the - // interrupt parent's '#interrupt-cells' property. - interrupts = <5 4 /* level */>; - - // The interrupt controller that this device is wired to. - interrupt-parent = <&intc>; - }; |