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Diffstat (limited to 'Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt')
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diff --git a/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt b/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt deleted file mode 100644 index 9134e9bcca56..000000000000 --- a/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt +++ /dev/null @@ -1,158 +0,0 @@ -* Freescale Management Complex - -The Freescale Management Complex (fsl-mc) is a hardware resource -manager that manages specialized hardware objects used in -network-oriented packet processing applications. After the fsl-mc -block is enabled, pools of hardware resources are available, such as -queues, buffer pools, I/O interfaces. These resources are building -blocks that can be used to create functional hardware objects/devices -such as network interfaces, crypto accelerator instances, L2 switches, -etc. - -For an overview of the DPAA2 architecture and fsl-mc bus see: -Documentation/networking/device_drivers/freescale/dpaa2/overview.rst - -As described in the above overview, all DPAA2 objects in a DPRC share the -same hardware "isolation context" and a 10-bit value called an ICID -(isolation context id) is expressed by the hardware to identify -the requester. - -The generic 'iommus' property is insufficient to describe the relationship -between ICIDs and IOMMUs, so an iommu-map property is used to define -the set of possible ICIDs under a root DPRC and how they map to -an IOMMU. - -For generic IOMMU bindings, see -Documentation/devicetree/bindings/iommu/iommu.txt. - -For arm-smmu binding, see: -Documentation/devicetree/bindings/iommu/arm,smmu.yaml. - -Required properties: - - - compatible - Value type: <string> - Definition: Must be "fsl,qoriq-mc". A Freescale Management Complex - compatible with this binding must have Block Revision - Registers BRR1 and BRR2 at offset 0x0BF8 and 0x0BFC in - the MC control register region. - - - reg - Value type: <prop-encoded-array> - Definition: A standard property. Specifies one or two regions - defining the MC's registers: - - -the first region is the command portal for the - this machine and must always be present - - -the second region is the MC control registers. This - region may not be present in some scenarios, such - as in the device tree presented to a virtual machine. - - - msi-parent - Value type: <phandle> - Definition: Must be present and point to the MSI controller node - handling message interrupts for the MC. - - - ranges - Value type: <prop-encoded-array> - Definition: A standard property. Defines the mapping between the child - MC address space and the parent system address space. - - The MC address space is defined by 3 components: - <region type> <offset hi> <offset lo> - - Valid values for region type are - 0x0 - MC portals - 0x1 - QBMAN portals - - - #address-cells - Value type: <u32> - Definition: Must be 3. (see definition in 'ranges' property) - - - #size-cells - Value type: <u32> - Definition: Must be 1. - -Sub-nodes: - - The fsl-mc node may optionally have dpmac sub-nodes that describe - the relationship between the Ethernet MACs which belong to the MC - and the Ethernet PHYs on the system board. - - The dpmac nodes must be under a node named "dpmacs" which contains - the following properties: - - - #address-cells - Value type: <u32> - Definition: Must be present if dpmac sub-nodes are defined and must - have a value of 1. - - - #size-cells - Value type: <u32> - Definition: Must be present if dpmac sub-nodes are defined and must - have a value of 0. - - These nodes must have the following properties: - - - compatible - Value type: <string> - Definition: Must be "fsl,qoriq-mc-dpmac". - - - reg - Value type: <prop-encoded-array> - Definition: Specifies the id of the dpmac. - - - phy-handle - Value type: <phandle> - Definition: Specifies the phandle to the PHY device node associated - with the this dpmac. -Optional properties: - -- iommu-map: Maps an ICID to an IOMMU and associated iommu-specifier - data. - - The property is an arbitrary number of tuples of - (icid-base,iommu,iommu-base,length). - - Any ICID i in the interval [icid-base, icid-base + length) is - associated with the listed IOMMU, with the iommu-specifier - (i - icid-base + iommu-base). - -Example: - - smmu: iommu@5000000 { - compatible = "arm,mmu-500"; - #iommu-cells = <1>; - stream-match-mask = <0x7C00>; - ... - }; - - fsl_mc: fsl-mc@80c000000 { - compatible = "fsl,qoriq-mc"; - reg = <0x00000008 0x0c000000 0 0x40>, /* MC portal base */ - <0x00000000 0x08340000 0 0x40000>; /* MC control reg */ - msi-parent = <&its>; - /* define map for ICIDs 23-64 */ - iommu-map = <23 &smmu 23 41>; - #address-cells = <3>; - #size-cells = <1>; - - /* - * Region type 0x0 - MC portals - * Region type 0x1 - QBMAN portals - */ - ranges = <0x0 0x0 0x0 0x8 0x0c000000 0x4000000 - 0x1 0x0 0x0 0x8 0x18000000 0x8000000>; - - dpmacs { - #address-cells = <1>; - #size-cells = <0>; - - dpmac@1 { - compatible = "fsl,qoriq-mc-dpmac"; - reg = <1>; - phy-handle = <&mdio0_phy0>; - } - } - }; |