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-Marvell Discovery mv64[345]6x System Controller chips
-===========================================================
-
-The Marvell mv64[345]60 series of system controller chips contain
-many of the peripherals needed to implement a complete computer
-system. In this section, we define device tree nodes to describe
-the system controller chip itself and each of the peripherals
-which it contains. Compatible string values for each node are
-prefixed with the string "marvell,", for Marvell Technology Group Ltd.
-
-1) The /system-controller node
-
- This node is used to represent the system-controller and must be
- present when the system uses a system controller chip. The top-level
- system-controller node contains information that is global to all
- devices within the system controller chip. The node name begins
- with "system-controller" followed by the unit address, which is
- the base address of the memory-mapped register set for the system
- controller chip.
-
- Required properties:
-
- - ranges : Describes the translation of system controller addresses
- for memory mapped registers.
- - clock-frequency: Contains the main clock frequency for the system
- controller chip.
- - reg : This property defines the address and size of the
- memory-mapped registers contained within the system controller
- chip. The address specified in the "reg" property should match
- the unit address of the system-controller node.
- - #address-cells : Address representation for system controller
- devices. This field represents the number of cells needed to
- represent the address of the memory-mapped registers of devices
- within the system controller chip.
- - #size-cells : Size representation for the memory-mapped
- registers within the system controller chip.
- - #interrupt-cells : Defines the width of cells used to represent
- interrupts.
-
- Optional properties:
-
- - model : The specific model of the system controller chip. Such
- as, "mv64360", "mv64460", or "mv64560".
- - compatible : A string identifying the compatibility identifiers
- of the system controller chip.
-
- The system-controller node contains child nodes for each system
- controller device that the platform uses. Nodes should not be created
- for devices which exist on the system controller chip but are not used
-
- Example Marvell Discovery mv64360 system-controller node:
-
- system-controller@f1000000 { /* Marvell Discovery mv64360 */
- #address-cells = <1>;
- #size-cells = <1>;
- model = "mv64360"; /* Default */
- compatible = "marvell,mv64360";
- clock-frequency = <133333333>;
- reg = <0xf1000000 0x10000>;
- virtual-reg = <0xf1000000>;
- ranges = <0x88000000 0x88000000 0x1000000 /* PCI 0 I/O Space */
- 0x80000000 0x80000000 0x8000000 /* PCI 0 MEM Space */
- 0xa0000000 0xa0000000 0x4000000 /* User FLASH */
- 0x00000000 0xf1000000 0x0010000 /* Bridge's regs */
- 0xf2000000 0xf2000000 0x0040000>;/* Integrated SRAM */
-
- [ child node definitions... ]
- }
-
-2) Child nodes of /system-controller
-
- a) Marvell Discovery MDIO bus
-
- The MDIO is a bus to which the PHY devices are connected. For each
- device that exists on this bus, a child node should be created. See
- the definition of the PHY node below for an example of how to define
- a PHY.
-
- Required properties:
- - #address-cells : Should be <1>
- - #size-cells : Should be <0>
- - compatible : Should be "marvell,mv64360-mdio"
-
- Example:
-
- mdio {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "marvell,mv64360-mdio";
-
- ethernet-phy@0 {
- ......
- };
- };
-
-
- b) Marvell Discovery ethernet controller
-
- The Discover ethernet controller is described with two levels
- of nodes. The first level describes an ethernet silicon block
- and the second level describes up to 3 ethernet nodes within
- that block. The reason for the multiple levels is that the
- registers for the node are interleaved within a single set
- of registers. The "ethernet-block" level describes the
- shared register set, and the "ethernet" nodes describe ethernet
- port-specific properties.
-
- Ethernet block node
-
- Required properties:
- - #address-cells : <1>
- - #size-cells : <0>
- - compatible : "marvell,mv64360-eth-block"
- - reg : Offset and length of the register set for this block
-
- Optional properties:
- - clocks : Phandle to the clock control device and gate bit
-
- Example Discovery Ethernet block node:
- ethernet-block@2000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "marvell,mv64360-eth-block";
- reg = <0x2000 0x2000>;
- ethernet@0 {
- .......
- };
- };
-
- Ethernet port node
-
- Required properties:
- - compatible : Should be "marvell,mv64360-eth".
- - reg : Should be <0>, <1>, or <2>, according to which registers
- within the silicon block the device uses.
- - interrupts : <a> where a is the interrupt number for the port.
- - interrupt-parent : the phandle for the interrupt controller
- that services interrupts for this device.
- - phy : the phandle for the PHY connected to this ethernet
- controller.
- - local-mac-address : 6 bytes, MAC address
-
- Example Discovery Ethernet port node:
- ethernet@0 {
- compatible = "marvell,mv64360-eth";
- reg = <0>;
- interrupts = <32>;
- interrupt-parent = <&PIC>;
- phy = <&PHY0>;
- local-mac-address = [ 00 00 00 00 00 00 ];
- };
-
-
-
- c) Marvell Discovery PHY nodes
-
- Required properties:
- - interrupts : <a> where a is the interrupt number for this phy.
- - interrupt-parent : the phandle for the interrupt controller that
- services interrupts for this device.
- - reg : The ID number for the phy, usually a small integer
-
- Example Discovery PHY node:
- ethernet-phy@1 {
- compatible = "broadcom,bcm5421";
- interrupts = <76>; /* GPP 12 */
- interrupt-parent = <&PIC>;
- reg = <1>;
- };
-
-
- d) Marvell Discovery SDMA nodes
-
- Represent DMA hardware associated with the MPSC (multiprotocol
- serial controllers).
-
- Required properties:
- - compatible : "marvell,mv64360-sdma"
- - reg : Offset and length of the register set for this device
- - interrupts : <a> where a is the interrupt number for the DMA
- device.
- - interrupt-parent : the phandle for the interrupt controller
- that services interrupts for this device.
-
- Example Discovery SDMA node:
- sdma@4000 {
- compatible = "marvell,mv64360-sdma";
- reg = <0x4000 0xc18>;
- virtual-reg = <0xf1004000>;
- interrupts = <36>;
- interrupt-parent = <&PIC>;
- };
-
-
- e) Marvell Discovery BRG nodes
-
- Represent baud rate generator hardware associated with the MPSC
- (multiprotocol serial controllers).
-
- Required properties:
- - compatible : "marvell,mv64360-brg"
- - reg : Offset and length of the register set for this device
- - clock-src : A value from 0 to 15 which selects the clock
- source for the baud rate generator. This value corresponds
- to the CLKS value in the BRGx configuration register. See
- the mv64x60 User's Manual.
- - clock-frequence : The frequency (in Hz) of the baud rate
- generator's input clock.
- - current-speed : The current speed setting (presumably by
- firmware) of the baud rate generator.
-
- Example Discovery BRG node:
- brg@b200 {
- compatible = "marvell,mv64360-brg";
- reg = <0xb200 0x8>;
- clock-src = <8>;
- clock-frequency = <133333333>;
- current-speed = <9600>;
- };
-
-
- f) Marvell Discovery CUNIT nodes
-
- Represent the Serial Communications Unit device hardware.
-
- Required properties:
- - reg : Offset and length of the register set for this device
-
- Example Discovery CUNIT node:
- cunit@f200 {
- reg = <0xf200 0x200>;
- };
-
-
- g) Marvell Discovery MPSCROUTING nodes
-
- Represent the Discovery's MPSC routing hardware
-
- Required properties:
- - reg : Offset and length of the register set for this device
-
- Example Discovery CUNIT node:
- mpscrouting@b500 {
- reg = <0xb400 0xc>;
- };
-
-
- h) Marvell Discovery MPSCINTR nodes
-
- Represent the Discovery's MPSC DMA interrupt hardware registers
- (SDMA cause and mask registers).
-
- Required properties:
- - reg : Offset and length of the register set for this device
-
- Example Discovery MPSCINTR node:
- mpsintr@b800 {
- reg = <0xb800 0x100>;
- };
-
-
- i) Marvell Discovery MPSC nodes
-
- Represent the Discovery's MPSC (Multiprotocol Serial Controller)
- serial port.
-
- Required properties:
- - compatible : "marvell,mv64360-mpsc"
- - reg : Offset and length of the register set for this device
- - sdma : the phandle for the SDMA node used by this port
- - brg : the phandle for the BRG node used by this port
- - cunit : the phandle for the CUNIT node used by this port
- - mpscrouting : the phandle for the MPSCROUTING node used by this port
- - mpscintr : the phandle for the MPSCINTR node used by this port
- - cell-index : the hardware index of this cell in the MPSC core
- - max_idle : value needed for MPSC CHR3 (Maximum Frame Length)
- register
- - interrupts : <a> where a is the interrupt number for the MPSC.
- - interrupt-parent : the phandle for the interrupt controller
- that services interrupts for this device.
-
- Example Discovery MPSCINTR node:
- mpsc@8000 {
- compatible = "marvell,mv64360-mpsc";
- reg = <0x8000 0x38>;
- virtual-reg = <0xf1008000>;
- sdma = <&SDMA0>;
- brg = <&BRG0>;
- cunit = <&CUNIT>;
- mpscrouting = <&MPSCROUTING>;
- mpscintr = <&MPSCINTR>;
- cell-index = <0>;
- max_idle = <40>;
- interrupts = <40>;
- interrupt-parent = <&PIC>;
- };
-
-
- j) Marvell Discovery Watch Dog Timer nodes
-
- Represent the Discovery's watchdog timer hardware
-
- Required properties:
- - compatible : "marvell,mv64360-wdt"
- - reg : Offset and length of the register set for this device
-
- Example Discovery Watch Dog Timer node:
- wdt@b410 {
- compatible = "marvell,mv64360-wdt";
- reg = <0xb410 0x8>;
- };
-
-
- k) Marvell Discovery I2C nodes
-
- Represent the Discovery's I2C hardware
-
- Required properties:
- - device_type : "i2c"
- - compatible : "marvell,mv64360-i2c"
- - reg : Offset and length of the register set for this device
- - interrupts : <a> where a is the interrupt number for the I2C.
- - interrupt-parent : the phandle for the interrupt controller
- that services interrupts for this device.
-
- Example Discovery I2C node:
- compatible = "marvell,mv64360-i2c";
- reg = <0xc000 0x20>;
- virtual-reg = <0xf100c000>;
- interrupts = <37>;
- interrupt-parent = <&PIC>;
- };
-
-
- l) Marvell Discovery PIC (Programmable Interrupt Controller) nodes
-
- Represent the Discovery's PIC hardware
-
- Required properties:
- - #interrupt-cells : <1>
- - #address-cells : <0>
- - compatible : "marvell,mv64360-pic"
- - reg : Offset and length of the register set for this device
- - interrupt-controller
-
- Example Discovery PIC node:
- pic {
- #interrupt-cells = <1>;
- #address-cells = <0>;
- compatible = "marvell,mv64360-pic";
- reg = <0x0 0x88>;
- interrupt-controller;
- };
-
-
- m) Marvell Discovery MPP (Multipurpose Pins) multiplexing nodes
-
- Represent the Discovery's MPP hardware
-
- Required properties:
- - compatible : "marvell,mv64360-mpp"
- - reg : Offset and length of the register set for this device
-
- Example Discovery MPP node:
- mpp@f000 {
- compatible = "marvell,mv64360-mpp";
- reg = <0xf000 0x10>;
- };
-
-
- n) Marvell Discovery GPP (General Purpose Pins) nodes
-
- Represent the Discovery's GPP hardware
-
- Required properties:
- - compatible : "marvell,mv64360-gpp"
- - reg : Offset and length of the register set for this device
-
- Example Discovery GPP node:
- gpp@f000 {
- compatible = "marvell,mv64360-gpp";
- reg = <0xf100 0x20>;
- };
-
-
- o) Marvell Discovery PCI host bridge node
-
- Represents the Discovery's PCI host bridge device. The properties
- for this node conform to Rev 2.1 of the PCI Bus Binding to IEEE
- 1275-1994. A typical value for the compatible property is
- "marvell,mv64360-pci".
-
- Example Discovery PCI host bridge node
- pci@80000000 {
- #address-cells = <3>;
- #size-cells = <2>;
- #interrupt-cells = <1>;
- device_type = "pci";
- compatible = "marvell,mv64360-pci";
- reg = <0xcf8 0x8>;
- ranges = <0x01000000 0x0 0x0
- 0x88000000 0x0 0x01000000
- 0x02000000 0x0 0x80000000
- 0x80000000 0x0 0x08000000>;
- bus-range = <0 255>;
- clock-frequency = <66000000>;
- interrupt-parent = <&PIC>;
- interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
- interrupt-map = <
- /* IDSEL 0x0a */
- 0x5000 0 0 1 &PIC 80
- 0x5000 0 0 2 &PIC 81
- 0x5000 0 0 3 &PIC 91
- 0x5000 0 0 4 &PIC 93
-
- /* IDSEL 0x0b */
- 0x5800 0 0 1 &PIC 91
- 0x5800 0 0 2 &PIC 93
- 0x5800 0 0 3 &PIC 80
- 0x5800 0 0 4 &PIC 81
-
- /* IDSEL 0x0c */
- 0x6000 0 0 1 &PIC 91
- 0x6000 0 0 2 &PIC 93
- 0x6000 0 0 3 &PIC 80
- 0x6000 0 0 4 &PIC 81
-
- /* IDSEL 0x0d */
- 0x6800 0 0 1 &PIC 93
- 0x6800 0 0 2 &PIC 80
- 0x6800 0 0 3 &PIC 81
- 0x6800 0 0 4 &PIC 91
- >;
- };
-
-
- p) Marvell Discovery CPU Error nodes
-
- Represent the Discovery's CPU error handler device.
-
- Required properties:
- - compatible : "marvell,mv64360-cpu-error"
- - reg : Offset and length of the register set for this device
- - interrupts : the interrupt number for this device
- - interrupt-parent : the phandle for the interrupt controller
- that services interrupts for this device.
-
- Example Discovery CPU Error node:
- cpu-error@70 {
- compatible = "marvell,mv64360-cpu-error";
- reg = <0x70 0x10 0x128 0x28>;
- interrupts = <3>;
- interrupt-parent = <&PIC>;
- };
-
-
- q) Marvell Discovery SRAM Controller nodes
-
- Represent the Discovery's SRAM controller device.
-
- Required properties:
- - compatible : "marvell,mv64360-sram-ctrl"
- - reg : Offset and length of the register set for this device
- - interrupts : the interrupt number for this device
- - interrupt-parent : the phandle for the interrupt controller
- that services interrupts for this device.
-
- Example Discovery SRAM Controller node:
- sram-ctrl@380 {
- compatible = "marvell,mv64360-sram-ctrl";
- reg = <0x380 0x80>;
- interrupts = <13>;
- interrupt-parent = <&PIC>;
- };
-
-
- r) Marvell Discovery PCI Error Handler nodes
-
- Represent the Discovery's PCI error handler device.
-
- Required properties:
- - compatible : "marvell,mv64360-pci-error"
- - reg : Offset and length of the register set for this device
- - interrupts : the interrupt number for this device
- - interrupt-parent : the phandle for the interrupt controller
- that services interrupts for this device.
-
- Example Discovery PCI Error Handler node:
- pci-error@1d40 {
- compatible = "marvell,mv64360-pci-error";
- reg = <0x1d40 0x40 0xc28 0x4>;
- interrupts = <12>;
- interrupt-parent = <&PIC>;
- };
-
-
- s) Marvell Discovery Memory Controller nodes
-
- Represent the Discovery's memory controller device.
-
- Required properties:
- - compatible : "marvell,mv64360-mem-ctrl"
- - reg : Offset and length of the register set for this device
- - interrupts : the interrupt number for this device
- - interrupt-parent : the phandle for the interrupt controller
- that services interrupts for this device.
-
- Example Discovery Memory Controller node:
- mem-ctrl@1400 {
- compatible = "marvell,mv64360-mem-ctrl";
- reg = <0x1400 0x60>;
- interrupts = <17>;
- interrupt-parent = <&PIC>;
- };
-
-