| Bhupesh Sharma | a5565a2 | 2015-01-25 02:42:51 +0530 | [diff] [blame] | 1 | * Freescale Management Complex |
| 2 | |
| 3 | The Freescale Management Complex (fsl-mc) is a hardware resource |
| 4 | manager that manages specialized hardware objects used in |
| 5 | network-oriented packet processing applications. After the fsl-mc |
| 6 | block is enabled, pools of hardware resources are available, such as |
| 7 | queues, buffer pools, I/O interfaces. These resources are building |
| 8 | blocks that can be used to create functional hardware objects/devices |
| 9 | such as network interfaces, crypto accelerator instances, L2 switches, |
| 10 | etc. |
| 11 | |
| 12 | Required properties: |
| 13 | |
| 14 | - compatible |
| 15 | Value type: <string> |
| 16 | Definition: Must be "fsl,qoriq-mc". A Freescale Management Complex |
| 17 | compatible with this binding must have Block Revision |
| 18 | Registers BRR1 and BRR2 at offset 0x0BF8 and 0x0BFC in |
| 19 | the MC control register region. |
| 20 | |
| 21 | - reg |
| 22 | Value type: <prop-encoded-array> |
| 23 | Definition: A standard property. Specifies one or two regions |
| 24 | defining the MC's registers: |
| 25 | |
| 26 | -the first region is the command portal for the |
| 27 | this machine and must always be present |
| 28 | |
| 29 | -the second region is the MC control registers. This |
| 30 | region may not be present in some scenarios, such |
| 31 | as in the device tree presented to a virtual machine. |
| 32 | |
| Stuart Yoder | 8522240 | 2016-04-19 16:53:08 -0500 | [diff] [blame] | 33 | - msi-parent |
| 34 | Value type: <phandle> |
| 35 | Definition: Must be present and point to the MSI controller node |
| 36 | handling message interrupts for the MC. |
| 37 | |
| 38 | - ranges |
| 39 | Value type: <prop-encoded-array> |
| 40 | Definition: A standard property. Defines the mapping between the child |
| 41 | MC address space and the parent system address space. |
| 42 | |
| 43 | The MC address space is defined by 3 components: |
| 44 | <region type> <offset hi> <offset lo> |
| 45 | |
| 46 | Valid values for region type are |
| 47 | 0x0 - MC portals |
| 48 | 0x1 - QBMAN portals |
| 49 | |
| 50 | - #address-cells |
| 51 | Value type: <u32> |
| 52 | Definition: Must be 3. (see definition in 'ranges' property) |
| 53 | |
| 54 | - #size-cells |
| 55 | Value type: <u32> |
| 56 | Definition: Must be 1. |
| 57 | |
| 58 | Sub-nodes: |
| 59 | |
| 60 | The fsl-mc node may optionally have dpmac sub-nodes that describe |
| 61 | the relationship between the Ethernet MACs which belong to the MC |
| 62 | and the Ethernet PHYs on the system board. |
| 63 | |
| 64 | The dpmac nodes must be under a node named "dpmacs" which contains |
| 65 | the following properties: |
| 66 | |
| 67 | - #address-cells |
| 68 | Value type: <u32> |
| 69 | Definition: Must be present if dpmac sub-nodes are defined and must |
| 70 | have a value of 1. |
| 71 | |
| 72 | - #size-cells |
| 73 | Value type: <u32> |
| 74 | Definition: Must be present if dpmac sub-nodes are defined and must |
| 75 | have a value of 0. |
| 76 | |
| 77 | These nodes must have the following properties: |
| 78 | |
| 79 | - compatible |
| 80 | Value type: <string> |
| 81 | Definition: Must be "fsl,qoriq-mc-dpmac". |
| 82 | |
| 83 | - reg |
| 84 | Value type: <prop-encoded-array> |
| 85 | Definition: Specifies the id of the dpmac. |
| 86 | |
| 87 | - phy-handle |
| 88 | Value type: <phandle> |
| 89 | Definition: Specifies the phandle to the PHY device node associated |
| 90 | with the this dpmac. |
| 91 | |
| Bhupesh Sharma | a5565a2 | 2015-01-25 02:42:51 +0530 | [diff] [blame] | 92 | Example: |
| 93 | |
| 94 | fsl_mc: fsl-mc@80c000000 { |
| 95 | compatible = "fsl,qoriq-mc"; |
| 96 | reg = <0x00000008 0x0c000000 0 0x40>, /* MC portal base */ |
| 97 | <0x00000000 0x08340000 0 0x40000>; /* MC control reg */ |
| Stuart Yoder | 8522240 | 2016-04-19 16:53:08 -0500 | [diff] [blame] | 98 | msi-parent = <&its>; |
| 99 | #address-cells = <3>; |
| 100 | #size-cells = <1>; |
| Bhupesh Sharma | a5565a2 | 2015-01-25 02:42:51 +0530 | [diff] [blame] | 101 | |
| Stuart Yoder | 8522240 | 2016-04-19 16:53:08 -0500 | [diff] [blame] | 102 | /* |
| 103 | * Region type 0x0 - MC portals |
| 104 | * Region type 0x1 - QBMAN portals |
| 105 | */ |
| 106 | ranges = <0x0 0x0 0x0 0x8 0x0c000000 0x4000000 |
| 107 | 0x1 0x0 0x0 0x8 0x18000000 0x8000000>; |
| 108 | |
| 109 | dpmacs { |
| 110 | #address-cells = <1>; |
| 111 | #size-cells = <0>; |
| 112 | |
| 113 | dpmac@1 { |
| 114 | compatible = "fsl,qoriq-mc-dpmac"; |
| 115 | reg = <1>; |
| 116 | phy-handle = <&mdio0_phy0>; |
| 117 | } |
| 118 | } |
| 119 | }; |