diff options
Diffstat (limited to 'Documentation/devicetree')
4 files changed, 77 insertions, 10 deletions
diff --git a/Documentation/devicetree/bindings/arm/armada-370-xp-mpic.txt b/Documentation/devicetree/bindings/arm/armada-370-xp-mpic.txt index 61df564c0d23..d74091a8a3bf 100644 --- a/Documentation/devicetree/bindings/arm/armada-370-xp-mpic.txt +++ b/Documentation/devicetree/bindings/arm/armada-370-xp-mpic.txt @@ -4,6 +4,8 @@ Marvell Armada 370 and Armada XP Interrupt Controller Required properties: - compatible: Should be "marvell,mpic" - interrupt-controller: Identifies the node as an interrupt controller. +- msi-controller: Identifies the node as an PCI Message Signaled + Interrupt controller. - #interrupt-cells: The number of cells to define the interrupts. Should be 1. The cell is the IRQ number @@ -24,6 +26,7 @@ Example: #address-cells = <1>; #size-cells = <1>; interrupt-controller; + msi-controller; reg = <0xd0020a00 0x1d0>, <0xd0021070 0x58>; }; diff --git a/Documentation/devicetree/bindings/arm/cci.txt b/Documentation/devicetree/bindings/arm/cci.txt index 92d36e2aa877..f28d82bbbc56 100644 --- a/Documentation/devicetree/bindings/arm/cci.txt +++ b/Documentation/devicetree/bindings/arm/cci.txt @@ -36,14 +36,18 @@ specific to ARM. - reg Usage: required - Value type: <prop-encoded-array> + Value type: Integer cells. A register entry, expressed as a pair + of cells, containing base and size. Definition: A standard property. Specifies base physical address of CCI control registers common to all interfaces. - ranges: Usage: required - Value type: <prop-encoded-array> + Value type: Integer cells. An array of range entries, expressed + as a tuple of cells, containing child address, + parent address and the size of the region in the + child address space. Definition: A standard property. Follow rules in the ePAPR for hierarchical bus addressing. CCI interfaces addresses refer to the parent node addressing @@ -74,11 +78,49 @@ specific to ARM. - reg: Usage: required - Value type: <prop-encoded-array> + Value type: Integer cells. A register entry, expressed + as a pair of cells, containing base and + size. Definition: the base address and size of the corresponding interface programming registers. + - CCI PMU node + + Parent node must be CCI interconnect node. + + A CCI pmu node must contain the following properties: + + - compatible + Usage: required + Value type: <string> + Definition: must be "arm,cci-400-pmu" + + - reg: + Usage: required + Value type: Integer cells. A register entry, expressed + as a pair of cells, containing base and + size. + Definition: the base address and size of the + corresponding interface programming + registers. + + - interrupts: + Usage: required + Value type: Integer cells. Array of interrupt specifier + entries, as defined in + ../interrupt-controller/interrupts.txt. + Definition: list of counter overflow interrupts, one per + counter. The interrupts must be specified + starting with the cycle counter overflow + interrupt, followed by counter0 overflow + interrupt, counter1 overflow interrupt,... + ,counterN overflow interrupt. + + The CCI PMU has an interrupt signal for each + counter. The number of interrupts must be + equal to the number of counters. + * CCI interconnect bus masters Description: masters in the device tree connected to a CCI port @@ -144,7 +186,7 @@ Example: #address-cells = <1>; #size-cells = <1>; reg = <0x0 0x2c090000 0 0x1000>; - ranges = <0x0 0x0 0x2c090000 0x6000>; + ranges = <0x0 0x0 0x2c090000 0x10000>; cci_control0: slave-if@1000 { compatible = "arm,cci-400-ctrl-if"; @@ -163,6 +205,16 @@ Example: interface-type = "ace"; reg = <0x5000 0x1000>; }; + + pmu@9000 { + compatible = "arm,cci-400-pmu"; + reg = <0x9000 0x5000>; + interrupts = <0 101 4>, + <0 102 4>, + <0 103 4>, + <0 104 4>, + <0 105 4>; + }; }; This CCI node corresponds to a CCI component whose control registers sits diff --git a/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt index cffc93d97f54..fc2910fa7e45 100644 --- a/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt +++ b/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt @@ -1,10 +1,10 @@ -* Gated Clock bindings for Marvell Orion SoCs +* Gated Clock bindings for Marvell EBU SoCs -Marvell Dove and Kirkwood allow some peripheral clocks to be gated to save -some power. The clock consumer should specify the desired clock by having -the clock ID in its "clocks" phandle cell. The clock ID is directly mapped to -the corresponding clock gating control bit in HW to ease manual clock lookup -in datasheet. +Marvell Armada 370/XP, Dove and Kirkwood allow some peripheral clocks to be +gated to save some power. The clock consumer should specify the desired clock +by having the clock ID in its "clocks" phandle cell. The clock ID is directly +mapped to the corresponding clock gating control bit in HW to ease manual clock +lookup in datasheet. The following is a list of provided IDs for Armada 370: ID Clock Peripheral @@ -94,6 +94,8 @@ ID Clock Peripheral Required properties: - compatible : shall be one of the following: + "marvell,armada-370-gating-clock" - for Armada 370 SoC clock gating + "marvell,armada-xp-gating-clock" - for Armada XP SoC clock gating "marvell,dove-gating-clock" - for Dove SoC clock gating "marvell,kirkwood-gating-clock" - for Kirkwood SoC clock gating - reg : shall be the register address of the Clock Gating Control register diff --git a/Documentation/devicetree/bindings/pci/mvebu-pci.txt b/Documentation/devicetree/bindings/pci/mvebu-pci.txt index 9556e2fedf6d..08c716b2c6b6 100644 --- a/Documentation/devicetree/bindings/pci/mvebu-pci.txt +++ b/Documentation/devicetree/bindings/pci/mvebu-pci.txt @@ -5,6 +5,7 @@ Mandatory properties: - compatible: one of the following values: marvell,armada-370-pcie marvell,armada-xp-pcie + marvell,dove-pcie marvell,kirkwood-pcie - #address-cells, set to <3> - #size-cells, set to <2> @@ -14,6 +15,8 @@ Mandatory properties: - ranges: ranges describing the MMIO registers to control the PCIe interfaces, and ranges describing the MBus windows needed to access the memory and I/O regions of each PCIe interface. +- msi-parent: Link to the hardware entity that serves as the Message + Signaled Interrupt controller for this PCI controller. The ranges describing the MMIO registers have the following layout: @@ -74,6 +77,8 @@ and the following optional properties: - marvell,pcie-lane: the physical PCIe lane number, for ports having multiple lanes. If this property is not found, we assume that the value is 0. +- reset-gpios: optional gpio to PERST# +- reset-delay-us: delay in us to wait after reset de-assertion Example: @@ -86,6 +91,7 @@ pcie-controller { #size-cells = <2>; bus-range = <0x00 0xff>; + msi-parent = <&mpic>; ranges = <0x82000000 0 0x40000 MBUS_ID(0xf0, 0x01) 0x40000 0 0x00002000 /* Port 0.0 registers */ @@ -135,6 +141,10 @@ pcie-controller { interrupt-map = <0 0 0 0 &mpic 58>; marvell,pcie-port = <0>; marvell,pcie-lane = <0>; + /* low-active PERST# reset on GPIO 25 */ + reset-gpios = <&gpio0 25 1>; + /* wait 20ms for device settle after reset deassertion */ + reset-delay-us = <20000>; clocks = <&gateclk 5>; status = "disabled"; }; |