46 files changed, 1691 insertions, 1531 deletions
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index 8d999d862d0e..79f533f38c61 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -1238,1122 +1238,7 @@ descriptions for the SOC devices for which new nodes have been
 defined; this list will expand as more and more SOC-containing
 platforms are moved over to use the flattened-device-tree model.
-   a) PHY nodes
+VII - Specifying interrupt information for devices
-   Required properties:
-    - device_type : Should be "ethernet-phy"
-    - interrupts : <a b> where a is the interrupt number and b is a
-      field that represents an encoding of the sense and level
-      information for the interrupt.  This should be encoded based on
-      the information in section 2) depending on the type of interrupt
-      controller you have.
-    - 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
-    - linux,phandle :  phandle for this node; likely referenced by an
-      ethernet controller node.
-   Example:
-        ethernet-phy@0 {
-                linux,phandle = <2452000>
-                interrupt-parent = <40000>;
-                interrupts = <35 1>;
-                reg = <0>;
-                device_type = "ethernet-phy";
-        };
-   b) Interrupt controllers
-   Some SOC devices contain interrupt controllers that are different
-   from the standard Open PIC specification.  The SOC device nodes for
-   these types of controllers should be specified just like a standard
-   OpenPIC controller.  Sense and level information should be encoded
-   as specified in section 2) of this chapter for each device that
-   specifies an interrupt.
-   Example :
-        pic@40000 {
-                linux,phandle = <40000>;
-                interrupt-controller;
-                #address-cells = <0>;
-                reg = <40000 40000>;
-                compatible = "chrp,open-pic";
-                device_type = "open-pic";
-        };
-    c) 4xx/Axon EMAC ethernet nodes
-    The EMAC ethernet controller in IBM and AMCC 4xx chips, and also
-    the Axon bridge.  To operate this needs to interact with a ths
-    special McMAL DMA controller, and sometimes an RGMII or ZMII
-    interface.  In addition to the nodes and properties described
-    below, the node for the OPB bus on which the EMAC sits must have a
-    correct clock-frequency property.
-      i) The EMAC node itself
-    Required properties:
-    - device_type       : "network"
-    - compatible        : compatible list, contains 2 entries, first is
-                          "ibm,emac-CHIP" where CHIP is the host ASIC (440gx,
-                          405gp, Axon) and second is either "ibm,emac" or
-                          "ibm,emac4".  For Axon, thus, we have: "ibm,emac-axon",
-                          "ibm,emac4"
-    - interrupts        : <interrupt mapping for EMAC IRQ and WOL IRQ>
-    - interrupt-parent  : optional, if needed for interrupt mapping
-    - reg               : <registers mapping>
-    - local-mac-address : 6 bytes, MAC address
-    - mal-device        : phandle of the associated McMAL node
-    - mal-tx-channel    : 1 cell, index of the tx channel on McMAL associated
-                          with this EMAC
-    - mal-rx-channel    : 1 cell, index of the rx channel on McMAL associated
-                          with this EMAC
-    - cell-index        : 1 cell, hardware index of the EMAC cell on a given
-                          ASIC (typically 0x0 and 0x1 for EMAC0 and EMAC1 on
-                          each Axon chip)
-    - max-frame-size    : 1 cell, maximum frame size supported in bytes
-    - rx-fifo-size      : 1 cell, Rx fifo size in bytes for 10 and 100 Mb/sec
-                          operations.
-                          For Axon, 2048
-    - tx-fifo-size      : 1 cell, Tx fifo size in bytes for 10 and 100 Mb/sec
-                          operations.
-                          For Axon, 2048.
-    - fifo-entry-size   : 1 cell, size of a fifo entry (used to calculate
-                          thresholds).
-                          For Axon, 0x00000010
-    - mal-burst-size    : 1 cell, MAL burst size (used to calculate thresholds)
-                          in bytes.
-                          For Axon, 0x00000100 (I think ...)
-    - phy-mode          : string, mode of operations of the PHY interface.
-                          Supported values are: "mii", "rmii", "smii", "rgmii",
-                          "tbi", "gmii", rtbi", "sgmii".
-                          For Axon on CAB, it is "rgmii"
-    - mdio-device       : 1 cell, required iff using shared MDIO registers
-                          (440EP).  phandle of the EMAC to use to drive the
-                          MDIO lines for the PHY used by this EMAC.
-    - zmii-device       : 1 cell, required iff connected to a ZMII.  phandle of
-                          the ZMII device node
-    - zmii-channel      : 1 cell, required iff connected to a ZMII.  Which ZMII
-                          channel or 0xffffffff if ZMII is only used for MDIO.
-    - rgmii-device      : 1 cell, required iff connected to an RGMII. phandle
-                          of the RGMII device node.
-                          For Axon: phandle of plb5/plb4/opb/rgmii
-    - rgmii-channel     : 1 cell, required iff connected to an RGMII.  Which
-                          RGMII channel is used by this EMAC.
-                          Fox Axon: present, whatever value is appropriate for each
-                          EMAC, that is the content of the current (bogus) "phy-port"
-                          property.
-    Optional properties:
-    - phy-address       : 1 cell, optional, MDIO address of the PHY. If absent,
-                          a search is performed.
-    - phy-map           : 1 cell, optional, bitmap of addresses to probe the PHY
-                          for, used if phy-address is absent. bit 0x00000001 is
-                          MDIO address 0.
-                          For Axon it can be absent, though my current driver
-                          doesn't handle phy-address yet so for now, keep
-                          0x00ffffff in it.
-    - rx-fifo-size-gige : 1 cell, Rx fifo size in bytes for 1000 Mb/sec
-                          operations (if absent the value is the same as
-                          rx-fifo-size).  For Axon, either absent or 2048.
-    - tx-fifo-size-gige : 1 cell, Tx fifo size in bytes for 1000 Mb/sec
-                          operations (if absent the value is the same as
-                          tx-fifo-size). For Axon, either absent or 2048.
-    - tah-device        : 1 cell, optional. If connected to a TAH engine for
-                          offload, phandle of the TAH device node.
-    - tah-channel       : 1 cell, optional. If appropriate, channel used on the
-                          TAH engine.
-    Example:
-        EMAC0: ethernet@40000800 {
-                device_type = "network";
-                compatible = "ibm,emac-440gp", "ibm,emac";
-                interrupt-parent = <&UIC1>;
-                interrupts = <1c 4 1d 4>;
-                reg = <40000800 70>;
-                local-mac-address = [00 04 AC E3 1B 1E];
-                mal-device = <&MAL0>;
-                mal-tx-channel = <0 1>;
-                mal-rx-channel = <0>;
-                cell-index = <0>;
-                max-frame-size = <5dc>;
-                rx-fifo-size = <1000>;
-                tx-fifo-size = <800>;
-                phy-mode = "rmii";
-                phy-map = <00000001>;
-                zmii-device = <&ZMII0>;
-                zmii-channel = <0>;
-        };
-      ii) McMAL node
-    Required properties:
-    - device_type        : "dma-controller"
-    - compatible         : compatible list, containing 2 entries, first is
-                           "ibm,mcmal-CHIP" where CHIP is the host ASIC (like
-                           emac) and the second is either "ibm,mcmal" or
-                           "ibm,mcmal2".
-                           For Axon, "ibm,mcmal-axon","ibm,mcmal2"
-    - interrupts         : <interrupt mapping for the MAL interrupts sources:
-                           5 sources: tx_eob, rx_eob, serr, txde, rxde>.
-                           For Axon: This is _different_ from the current
-                           firmware.  We use the "delayed" interrupts for txeob
-                           and rxeob. Thus we end up with mapping those 5 MPIC
-                           interrupts, all level positive sensitive: 10, 11, 32,
-                           33, 34 (in decimal)
-    - dcr-reg            : < DCR registers range >
-    - dcr-parent         : if needed for dcr-reg
-    - num-tx-chans       : 1 cell, number of Tx channels
-    - num-rx-chans       : 1 cell, number of Rx channels
-      iii) ZMII node
-    Required properties:
-    - compatible         : compatible list, containing 2 entries, first is
-                           "ibm,zmii-CHIP" where CHIP is the host ASIC (like
-                           EMAC) and the second is "ibm,zmii".
-                           For Axon, there is no ZMII node.
-    - reg                : <registers mapping>
-      iv) RGMII node
-    Required properties:
-    - compatible         : compatible list, containing 2 entries, first is
-                           "ibm,rgmii-CHIP" where CHIP is the host ASIC (like
-                           EMAC) and the second is "ibm,rgmii".
-                           For Axon, "ibm,rgmii-axon","ibm,rgmii"
-    - reg                : <registers mapping>
-    - revision           : as provided by the RGMII new version register if
-                           available.
-                           For Axon: 0x0000012a
-   d) Xilinx IP cores
-   The Xilinx EDK toolchain ships with a set of IP cores (devices) for use
-   in Xilinx Spartan and Virtex FPGAs.  The devices cover the whole range
-   of standard device types (network, serial, etc.) and miscellaneous
-   devices (gpio, LCD, spi, etc).  Also, since these devices are
-   implemented within the fpga fabric every instance of the device can be
-   synthesised with different options that change the behaviour.
-   Each IP-core has a set of parameters which the FPGA designer can use to
-   control how the core is synthesized.  Historically, the EDK tool would
-   extract the device parameters relevant to device drivers and copy them
-   into an 'xparameters.h' in the form of #define symbols.  This tells the
-   device drivers how the IP cores are configured, but it requres the kernel
-   to be recompiled every time the FPGA bitstream is resynthesized.
-   The new approach is to export the parameters into the device tree and
-   generate a new device tree each time the FPGA bitstream changes.  The
-   parameters which used to be exported as #defines will now become
-   properties of the device node.  In general, device nodes for IP-cores
-   will take the following form:
-        (name): (generic-name)@(base-address) {
-                compatible = "xlnx,(ip-core-name)-(HW_VER)"
-                             [, (list of compatible devices), ...];
-                reg = <(baseaddr) (size)>;
-                interrupt-parent = <&interrupt-controller-phandle>;
-                interrupts = < ... >;
-                xlnx,(parameter1) = "(string-value)";
-                xlnx,(parameter2) = <(int-value)>;
-        };
-        (generic-name):   an open firmware-style name that describes the
-                        generic class of device.  Preferably, this is one word, such
-                        as 'serial' or 'ethernet'.
-        (ip-core-name): the name of the ip block (given after the BEGIN
-                        directive in system.mhs).  Should be in lowercase
-                        and all underscores '_' converted to dashes '-'.
-        (name):         is derived from the "PARAMETER INSTANCE" value.
-        (parameter#):   C_* parameters from system.mhs.  The C_ prefix is
-                        dropped from the parameter name, the name is converted
-                        to lowercase and all underscore '_' characters are
-                        converted to dashes '-'.
-        (baseaddr):     the baseaddr parameter value (often named C_BASEADDR).
-        (HW_VER):       from the HW_VER parameter.
-        (size):         the address range size (often C_HIGHADDR - C_BASEADDR + 1).
-   Typically, the compatible list will include the exact IP core version
-   followed by an older IP core version which implements the same
-   interface or any other device with the same interface.
-   'reg', 'interrupt-parent' and 'interrupts' are all optional properties.
-   For example, the following block from system.mhs:
-        BEGIN opb_uartlite
-                PARAMETER INSTANCE = opb_uartlite_0
-                PARAMETER HW_VER = 1.00.b
-                PARAMETER C_BAUDRATE = 115200
-                PARAMETER C_DATA_BITS = 8
-                PARAMETER C_ODD_PARITY = 0
-                PARAMETER C_USE_PARITY = 0
-                PARAMETER C_CLK_FREQ = 50000000
-                PARAMETER C_BASEADDR = 0xEC100000
-                PARAMETER C_HIGHADDR = 0xEC10FFFF
-                BUS_INTERFACE SOPB = opb_7
-                PORT OPB_Clk = CLK_50MHz
-                PORT Interrupt = opb_uartlite_0_Interrupt
-                PORT RX = opb_uartlite_0_RX
-                PORT TX = opb_uartlite_0_TX
-                PORT OPB_Rst = sys_bus_reset_0
-        END
-   becomes the following device tree node:
-        opb_uartlite_0: serial@ec100000 {
-                device_type = "serial";
-                compatible = "xlnx,opb-uartlite-1.00.b";
-                reg = <ec100000 10000>;
-                interrupt-parent = <&opb_intc_0>;
-                interrupts = <1 0>; // got this from the opb_intc parameters
-                current-speed = <d#115200>;     // standard serial device prop
-                clock-frequency = <d#50000000>; // standard serial device prop
-                xlnx,data-bits = <8>;
-                xlnx,odd-parity = <0>;
-                xlnx,use-parity = <0>;
-        };
-   Some IP cores actually implement 2 or more logical devices.  In
-   this case, the device should still describe the whole IP core with
-   a single node and add a child node for each logical device.  The
-   ranges property can be used to translate from parent IP-core to the
-   registers of each device.  In addition, the parent node should be
-   compatible with the bus type 'xlnx,compound', and should contain
-   #address-cells and #size-cells, as with any other bus.  (Note: this
-   makes the assumption that both logical devices have the same bus
-   binding.  If this is not true, then separate nodes should be used
-   for each logical device).  The 'cell-index' property can be used to
-   enumerate logical devices within an IP core.  For example, the
-   following is the system.mhs entry for the dual ps2 controller found
-   on the ml403 reference design.
-        BEGIN opb_ps2_dual_ref
-                PARAMETER INSTANCE = opb_ps2_dual_ref_0
-                PARAMETER HW_VER = 1.00.a
-                PARAMETER C_BASEADDR = 0xA9000000
-                PARAMETER C_HIGHADDR = 0xA9001FFF
-                BUS_INTERFACE SOPB = opb_v20_0
-                PORT Sys_Intr1 = ps2_1_intr
-                PORT Sys_Intr2 = ps2_2_intr
-                PORT Clkin1 = ps2_clk_rx_1
-                PORT Clkin2 = ps2_clk_rx_2
-                PORT Clkpd1 = ps2_clk_tx_1
-                PORT Clkpd2 = ps2_clk_tx_2
-                PORT Rx1 = ps2_d_rx_1
-                PORT Rx2 = ps2_d_rx_2
-                PORT Txpd1 = ps2_d_tx_1
-                PORT Txpd2 = ps2_d_tx_2
-        END
-   It would result in the following device tree nodes:
-        opb_ps2_dual_ref_0: opb-ps2-dual-ref@a9000000 {
-                #address-cells = <1>;
-                #size-cells = <1>;
-                compatible = "xlnx,compound";
-                ranges = <0 a9000000 2000>;
-                // If this device had extra parameters, then they would
-                // go here.
-                ps2@0 {
-                        compatible = "xlnx,opb-ps2-dual-ref-1.00.a";
-                        reg = <0 40>;
-                        interrupt-parent = <&opb_intc_0>;
-                        interrupts = <3 0>;
-                        cell-index = <0>;
-                };
-                ps2@1000 {
-                        compatible = "xlnx,opb-ps2-dual-ref-1.00.a";
-                        reg = <1000 40>;
-                        interrupt-parent = <&opb_intc_0>;
-                        interrupts = <3 0>;
-                        cell-index = <0>;
-                };
-        };
-   Also, the system.mhs file defines bus attachments from the processor
-   to the devices.  The device tree structure should reflect the bus
-   attachments.  Again an example; this system.mhs fragment:
-        BEGIN ppc405_virtex4
-                PARAMETER INSTANCE = ppc405_0
-                PARAMETER HW_VER = 1.01.a
-                BUS_INTERFACE DPLB = plb_v34_0
-                BUS_INTERFACE IPLB = plb_v34_0
-        END
-        BEGIN opb_intc
-                PARAMETER INSTANCE = opb_intc_0
-                PARAMETER HW_VER = 1.00.c
-                PARAMETER C_BASEADDR = 0xD1000FC0
-                PARAMETER C_HIGHADDR = 0xD1000FDF
-                BUS_INTERFACE SOPB = opb_v20_0
-        END
-        BEGIN opb_uart16550
-                PARAMETER INSTANCE = opb_uart16550_0
-                PARAMETER HW_VER = 1.00.d
-                PARAMETER C_BASEADDR = 0xa0000000
-                PARAMETER C_HIGHADDR = 0xa0001FFF
-                BUS_INTERFACE SOPB = opb_v20_0
-        END
-        BEGIN plb_v34
-                PARAMETER INSTANCE = plb_v34_0
-                PARAMETER HW_VER = 1.02.a
-        END
-        BEGIN plb_bram_if_cntlr
-                PARAMETER INSTANCE = plb_bram_if_cntlr_0
-                PARAMETER HW_VER = 1.00.b
-                PARAMETER C_BASEADDR = 0xFFFF0000
-                PARAMETER C_HIGHADDR = 0xFFFFFFFF
-                BUS_INTERFACE SPLB = plb_v34_0
-        END
-        BEGIN plb2opb_bridge
-                PARAMETER INSTANCE = plb2opb_bridge_0
-                PARAMETER HW_VER = 1.01.a
-                PARAMETER C_RNG0_BASEADDR = 0x20000000
-                PARAMETER C_RNG0_HIGHADDR = 0x3FFFFFFF
-                PARAMETER C_RNG1_BASEADDR = 0x60000000
-                PARAMETER C_RNG1_HIGHADDR = 0x7FFFFFFF
-                PARAMETER C_RNG2_BASEADDR = 0x80000000
-                PARAMETER C_RNG2_HIGHADDR = 0xBFFFFFFF
-                PARAMETER C_RNG3_BASEADDR = 0xC0000000
-                PARAMETER C_RNG3_HIGHADDR = 0xDFFFFFFF
-                BUS_INTERFACE SPLB = plb_v34_0
-                BUS_INTERFACE MOPB = opb_v20_0
-        END
-   Gives this device tree (some properties removed for clarity):
-        plb@0 {
-                #address-cells = <1>;
-                #size-cells = <1>;
-                compatible = "xlnx,plb-v34-1.02.a";
-                device_type = "ibm,plb";
-                ranges; // 1:1 translation
-                plb_bram_if_cntrl_0: bram@ffff0000 {
-                        reg = <ffff0000 10000>;
-                }
-                opb@20000000 {
-                        #address-cells = <1>;
-                        #size-cells = <1>;
-                        ranges = <20000000 20000000 20000000
-                                  60000000 60000000 20000000
-                                  80000000 80000000 40000000
-                                  c0000000 c0000000 20000000>;
-                        opb_uart16550_0: serial@a0000000 {
-                                reg = <a00000000 2000>;
-                        };
-                        opb_intc_0: interrupt-controller@d1000fc0 {
-                                reg = <d1000fc0 20>;
-                        };
-                };
-        };
-   That covers the general approach to binding xilinx IP cores into the
-   device tree.  The following are bindings for specific devices:
-      i) Xilinx ML300 Framebuffer
-      Simple framebuffer device from the ML300 reference design (also on the
-      ML403 reference design as well as others).
-      Optional properties:
-       - resolution = <xres yres> : pixel resolution of framebuffer.  Some
-                                    implementations use a different resolution.
-                                    Default is <d#640 d#480>
-       - virt-resolution = <xvirt yvirt> : Size of framebuffer in memory.
-                                           Default is <d#1024 d#480>.
-       - rotate-display (empty) : rotate display 180 degrees.
-      ii) Xilinx SystemACE
-      The Xilinx SystemACE device is used to program FPGAs from an FPGA
-      bitstream stored on a CF card.  It can also be used as a generic CF
-      interface device.
-      Optional properties:
-       - 8-bit (empty) : Set this property for SystemACE in 8 bit mode
-      iii) Xilinx EMAC and Xilinx TEMAC
-      Xilinx Ethernet devices.  In addition to general xilinx properties
-      listed above, nodes for these devices should include a phy-handle
-      property, and may include other common network device properties
-      like local-mac-address.
-      iv) Xilinx Uartlite
-      Xilinx uartlite devices are simple fixed speed serial ports.
-      Required properties:
-       - current-speed : Baud rate of uartlite
-      v) Xilinx hwicap
-                Xilinx hwicap devices provide access to the configuration logic
-                of the FPGA through the Internal Configuration Access Port
-                (ICAP).  The ICAP enables partial reconfiguration of the FPGA,
-                readback of the configuration information, and some control over
-                'warm boots' of the FPGA fabric.
-                Required properties:
-                - xlnx,family : The family of the FPGA, necessary since the
-                      capabilities of the underlying ICAP hardware
-                      differ between different families.  May be
-                      'virtex2p', 'virtex4', or 'virtex5'.
-      vi) Xilinx Uart 16550
-      Xilinx UART 16550 devices are very similar to the NS16550 but with
-      different register spacing and an offset from the base address.
-      Required properties:
-       - clock-frequency : Frequency of the clock input
-       - reg-offset : A value of 3 is required
-       - reg-shift : A value of 2 is required
-    e) USB EHCI controllers
-    Required properties:
-      - compatible : should be "usb-ehci".
-      - reg : should contain at least address and length of the standard EHCI
-        register set for the device. Optional platform-dependent registers
-        (debug-port or other) can be also specified here, but only after
-        definition of standard EHCI registers.
-      - interrupts : one EHCI interrupt should be described here.
-    If device registers are implemented in big endian mode, the device
-    node should have "big-endian-regs" property.
-    If controller implementation operates with big endian descriptors,
-    "big-endian-desc" property should be specified.
-    If both big endian registers and descriptors are used by the controller
-    implementation, "big-endian" property can be specified instead of having
-    both "big-endian-regs" and "big-endian-desc".
-     Example (Sequoia 440EPx):
-            ehci@e0000300 {
-                   compatible = "ibm,usb-ehci-440epx", "usb-ehci";
-                   interrupt-parent = <&UIC0>;
-                   interrupts = <1a 4>;
-                   reg = <0 e0000300 90 0 e0000390 70>;
-                   big-endian;
-           };
-   f) MDIO on GPIOs
-   Currently defined compatibles:
-   - virtual,gpio-mdio
-   MDC and MDIO lines connected to GPIO controllers are listed in the
-   gpios property as described in section VIII.1 in the following order:
-   MDC, MDIO.
-   Example:
-        mdio {
-                compatible = "virtual,mdio-gpio";
-                #address-cells = <1>;
-                #size-cells = <0>;
-                gpios = <&qe_pio_a 11
-                         &qe_pio_c 6>;
-        };
-    g) SPI (Serial Peripheral Interface) busses
-    SPI busses can be described with a node for the SPI master device
-    and a set of child nodes for each SPI slave on the bus.  For this
-    discussion, it is assumed that the system's SPI controller is in
-    SPI master mode.  This binding does not describe SPI controllers
-    in slave mode.
-    The SPI master node requires the following properties:
-    - #address-cells  - number of cells required to define a chip select
-                        address on the SPI bus.
-    - #size-cells     - should be zero.
-    - compatible      - name of SPI bus controller following generic names
-                        recommended practice.
-    No other properties are required in the SPI bus node.  It is assumed
-    that a driver for an SPI bus device will understand that it is an SPI bus.
-    However, the binding does not attempt to define the specific method for
-    assigning chip select numbers.  Since SPI chip select configuration is
-    flexible and non-standardized, it is left out of this binding with the
-    assumption that board specific platform code will be used to manage
-    chip selects.  Individual drivers can define additional properties to
-    support describing the chip select layout.
-    SPI slave nodes must be children of the SPI master node and can
-    contain the following properties.
-    - reg             - (required) chip select address of device.
-    - compatible      - (required) name of SPI device following generic names
-                        recommended practice
-    - spi-max-frequency - (required) Maximum SPI clocking speed of device in Hz
-    - spi-cpol        - (optional) Empty property indicating device requires
-                        inverse clock polarity (CPOL) mode
-    - spi-cpha        - (optional) Empty property indicating device requires
-                        shifted clock phase (CPHA) mode
-    - spi-cs-high     - (optional) Empty property indicating device requires
-                        chip select active high
-    SPI example for an MPC5200 SPI bus:
-                spi@f00 {
-                        #address-cells = <1>;
-                        #size-cells = <0>;
-                        compatible = "fsl,mpc5200b-spi","fsl,mpc5200-spi";
-                        reg = <0xf00 0x20>;
-                        interrupts = <2 13 0 2 14 0>;
-                        interrupt-parent = <&mpc5200_pic>;
-                        ethernet-switch@0 {
-                                compatible = "micrel,ks8995m";
-                                spi-max-frequency = <1000000>;
-                                reg = <0>;
-                        };
-                        codec@1 {
-                                compatible = "ti,tlv320aic26";
-                                spi-max-frequency = <100000>;
-                                reg = <1>;
-                        };
-                };
-VII - 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 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>
-     - device_type : Should be "mdio"
-     - compatible : Should be "marvell,mv64360-mdio"
-   Example:
-     mdio {
-             #address-cells = <1>;
-             #size-cells = <0>;
-             device_type = "mdio";
-             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
-   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:
-     - device_type : Should be "network".
-     - 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 {
-             device_type = "network";
-             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:
-     - device_type : Should be "ethernet-phy"
-     - 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 {
-             device_type = "ethernet-phy";
-             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:
-     - device_type : "serial"
-     - 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 {
-             device_type = "serial";
-             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@0070 {
-             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@0380 {
-             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>;
-     };
-VIII - Specifying interrupt information for devices
 ===================================================
 The device tree represents the busses and devices of a hardware
@@ -2439,56 +1324,7 @@ encodings listed below:
        2 =  high to low edge sensitive type enabled
        3 =  low to high edge sensitive type enabled
-IX - Specifying GPIO information for devices
+VIII - Specifying Device Power Management Information (sleep property)
-============================================
-1) gpios property
-----------------
-Nodes that makes use of GPIOs should define them using `gpios' property,
-format of which is: <&gpio-controller1-phandle gpio1-specifier
-                     &gpio-controller2-phandle gpio2-specifier
-                     0 /* holes are permitted, means no GPIO 3 */
-                     &gpio-controller4-phandle gpio4-specifier
-                     ...>;
-Note that gpio-specifier length is controller dependent.
-gpio-specifier may encode: bank, pin position inside the bank,
-whether pin is open-drain and whether pin is logically inverted.
-Example of the node using GPIOs:
-        node {
-                gpios = <&qe_pio_e 18 0>;
-        };
-In this example gpio-specifier is "18 0" and encodes GPIO pin number,
-and empty GPIO flags as accepted by the "qe_pio_e" gpio-controller.
-2) gpio-controller nodes
------------------------
-Every GPIO controller node must have #gpio-cells property defined,
-this information will be used to translate gpio-specifiers.
-Example of two SOC GPIO banks defined as gpio-controller nodes:
-        qe_pio_a: gpio-controller@1400 {
-                #gpio-cells = <2>;
-                compatible = "fsl,qe-pario-bank-a", "fsl,qe-pario-bank";
-                reg = <0x1400 0x18>;
-                gpio-controller;
-        };
-        qe_pio_e: gpio-controller@1460 {
-                #gpio-cells = <2>;
-                compatible = "fsl,qe-pario-bank-e", "fsl,qe-pario-bank";
-                reg = <0x1460 0x18>;
-                gpio-controller;
-        };
-X - Specifying Device Power Management Information (sleep property)
 ===================================================================
 Devices on SOCs often have mechanisms for placing devices into low-power
diff --git a/Documentation/powerpc/dts-bindings/4xx/emac.txt b/Documentation/powerpc/dts-bindings/4xx/emac.txt
new file mode 100644
index 000000000000..2161334a7ca5
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/4xx/emac.txt
@@ -0,0 +1,148 @@
+    4xx/Axon EMAC ethernet nodes
+    The EMAC ethernet controller in IBM and AMCC 4xx chips, and also
+    the Axon bridge.  To operate this needs to interact with a ths
+    special McMAL DMA controller, and sometimes an RGMII or ZMII
+    interface.  In addition to the nodes and properties described
+    below, the node for the OPB bus on which the EMAC sits must have a
+    correct clock-frequency property.
+      i) The EMAC node itself
+    Required properties:
+    - device_type       : "network"
+    - compatible        : compatible list, contains 2 entries, first is
+                          "ibm,emac-CHIP" where CHIP is the host ASIC (440gx,
+                          405gp, Axon) and second is either "ibm,emac" or
+                          "ibm,emac4".  For Axon, thus, we have: "ibm,emac-axon",
+                          "ibm,emac4"
+    - interrupts        : <interrupt mapping for EMAC IRQ and WOL IRQ>
+    - interrupt-parent  : optional, if needed for interrupt mapping
+    - reg               : <registers mapping>
+    - local-mac-address : 6 bytes, MAC address
+    - mal-device        : phandle of the associated McMAL node
+    - mal-tx-channel    : 1 cell, index of the tx channel on McMAL associated
+                          with this EMAC
+    - mal-rx-channel    : 1 cell, index of the rx channel on McMAL associated
+                          with this EMAC
+    - cell-index        : 1 cell, hardware index of the EMAC cell on a given
+                          ASIC (typically 0x0 and 0x1 for EMAC0 and EMAC1 on
+                          each Axon chip)
+    - max-frame-size    : 1 cell, maximum frame size supported in bytes
+    - rx-fifo-size      : 1 cell, Rx fifo size in bytes for 10 and 100 Mb/sec
+                          operations.
+                          For Axon, 2048
+    - tx-fifo-size      : 1 cell, Tx fifo size in bytes for 10 and 100 Mb/sec
+                          operations.
+                          For Axon, 2048.
+    - fifo-entry-size   : 1 cell, size of a fifo entry (used to calculate
+                          thresholds).
+                          For Axon, 0x00000010
+    - mal-burst-size    : 1 cell, MAL burst size (used to calculate thresholds)
+                          in bytes.
+                          For Axon, 0x00000100 (I think ...)
+    - phy-mode          : string, mode of operations of the PHY interface.
+                          Supported values are: "mii", "rmii", "smii", "rgmii",
+                          "tbi", "gmii", rtbi", "sgmii".
+                          For Axon on CAB, it is "rgmii"
+    - mdio-device       : 1 cell, required iff using shared MDIO registers
+                          (440EP).  phandle of the EMAC to use to drive the
+                          MDIO lines for the PHY used by this EMAC.
+    - zmii-device       : 1 cell, required iff connected to a ZMII.  phandle of
+                          the ZMII device node
+    - zmii-channel      : 1 cell, required iff connected to a ZMII.  Which ZMII
+                          channel or 0xffffffff if ZMII is only used for MDIO.
+    - rgmii-device      : 1 cell, required iff connected to an RGMII. phandle
+                          of the RGMII device node.
+                          For Axon: phandle of plb5/plb4/opb/rgmii
+    - rgmii-channel     : 1 cell, required iff connected to an RGMII.  Which
+                          RGMII channel is used by this EMAC.
+                          Fox Axon: present, whatever value is appropriate for each
+                          EMAC, that is the content of the current (bogus) "phy-port"
+                          property.
+    Optional properties:
+    - phy-address       : 1 cell, optional, MDIO address of the PHY. If absent,
+                          a search is performed.
+    - phy-map           : 1 cell, optional, bitmap of addresses to probe the PHY
+                          for, used if phy-address is absent. bit 0x00000001 is
+                          MDIO address 0.
+                          For Axon it can be absent, though my current driver
+                          doesn't handle phy-address yet so for now, keep
+                          0x00ffffff in it.
+    - rx-fifo-size-gige : 1 cell, Rx fifo size in bytes for 1000 Mb/sec
+                          operations (if absent the value is the same as
+                          rx-fifo-size).  For Axon, either absent or 2048.
+    - tx-fifo-size-gige : 1 cell, Tx fifo size in bytes for 1000 Mb/sec
+                          operations (if absent the value is the same as
+                          tx-fifo-size). For Axon, either absent or 2048.
+    - tah-device        : 1 cell, optional. If connected to a TAH engine for
+                          offload, phandle of the TAH device node.
+    - tah-channel       : 1 cell, optional. If appropriate, channel used on the
+                          TAH engine.
+    Example:
+        EMAC0: ethernet@40000800 {
+                device_type = "network";
+                compatible = "ibm,emac-440gp", "ibm,emac";
+                interrupt-parent = <&UIC1>;
+                interrupts = <1c 4 1d 4>;
+                reg = <40000800 70>;
+                local-mac-address = [00 04 AC E3 1B 1E];
+                mal-device = <&MAL0>;
+                mal-tx-channel = <0 1>;
+                mal-rx-channel = <0>;
+                cell-index = <0>;
+                max-frame-size = <5dc>;
+                rx-fifo-size = <1000>;
+                tx-fifo-size = <800>;
+                phy-mode = "rmii";
+                phy-map = <00000001>;
+                zmii-device = <&ZMII0>;
+                zmii-channel = <0>;
+        };
+      ii) McMAL node
+    Required properties:
+    - device_type        : "dma-controller"
+    - compatible         : compatible list, containing 2 entries, first is
+                           "ibm,mcmal-CHIP" where CHIP is the host ASIC (like
+                           emac) and the second is either "ibm,mcmal" or
+                           "ibm,mcmal2".
+                           For Axon, "ibm,mcmal-axon","ibm,mcmal2"
+    - interrupts         : <interrupt mapping for the MAL interrupts sources:
+                           5 sources: tx_eob, rx_eob, serr, txde, rxde>.
+                           For Axon: This is _different_ from the current
+                           firmware.  We use the "delayed" interrupts for txeob
+                           and rxeob. Thus we end up with mapping those 5 MPIC
+                           interrupts, all level positive sensitive: 10, 11, 32,
+                           33, 34 (in decimal)
+    - dcr-reg            : < DCR registers range >
+    - dcr-parent         : if needed for dcr-reg
+    - num-tx-chans       : 1 cell, number of Tx channels
+    - num-rx-chans       : 1 cell, number of Rx channels
+      iii) ZMII node
+    Required properties:
+    - compatible         : compatible list, containing 2 entries, first is
+                           "ibm,zmii-CHIP" where CHIP is the host ASIC (like
+                           EMAC) and the second is "ibm,zmii".
+                           For Axon, there is no ZMII node.
+    - reg                : <registers mapping>
+      iv) RGMII node
+    Required properties:
+    - compatible         : compatible list, containing 2 entries, first is
+                           "ibm,rgmii-CHIP" where CHIP is the host ASIC (like
+                           EMAC) and the second is "ibm,rgmii".
+                           For Axon, "ibm,rgmii-axon","ibm,rgmii"
+    - reg                : <registers mapping>
+    - revision           : as provided by the RGMII new version register if
+                           available.
+                           For Axon: 0x0000012a
diff --git a/Documentation/powerpc/dts-bindings/gpio/gpio.txt b/Documentation/powerpc/dts-bindings/gpio/gpio.txt
new file mode 100644
index 000000000000..edaa84d288a1
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/gpio/gpio.txt
@@ -0,0 +1,50 @@
+Specifying GPIO information for devices
+============================================
+1) gpios property
+-----------------
+Nodes that makes use of GPIOs should define them using `gpios' property,
+format of which is: <&gpio-controller1-phandle gpio1-specifier
+                     &gpio-controller2-phandle gpio2-specifier
+                     0 /* holes are permitted, means no GPIO 3 */
+                     &gpio-controller4-phandle gpio4-specifier
+                     ...>;
+Note that gpio-specifier length is controller dependent.
+gpio-specifier may encode: bank, pin position inside the bank,
+whether pin is open-drain and whether pin is logically inverted.
+Example of the node using GPIOs:
+        node {
+                gpios = <&qe_pio_e 18 0>;
+        };
+In this example gpio-specifier is "18 0" and encodes GPIO pin number,
+and empty GPIO flags as accepted by the "qe_pio_e" gpio-controller.
+2) gpio-controller nodes
+------------------------
+Every GPIO controller node must have #gpio-cells property defined,
+this information will be used to translate gpio-specifiers.
+Example of two SOC GPIO banks defined as gpio-controller nodes:
+        qe_pio_a: gpio-controller@1400 {
+                #gpio-cells = <2>;
+                compatible = "fsl,qe-pario-bank-a", "fsl,qe-pario-bank";
+                reg = <0x1400 0x18>;
+                gpio-controller;
+        };
+        qe_pio_e: gpio-controller@1460 {
+                #gpio-cells = <2>;
+                compatible = "fsl,qe-pario-bank-e", "fsl,qe-pario-bank";
+                reg = <0x1460 0x18>;
+                gpio-controller;
+        };
diff --git a/Documentation/powerpc/dts-bindings/gpio/mdio.txt b/Documentation/powerpc/dts-bindings/gpio/mdio.txt
new file mode 100644
index 000000000000..bc9549529014
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/gpio/mdio.txt
@@ -0,0 +1,19 @@
+MDIO on GPIOs
+Currently defined compatibles:
+- virtual,gpio-mdio
+MDC and MDIO lines connected to GPIO controllers are listed in the
+gpios property as described in section VIII.1 in the following order:
+MDC, MDIO.
+Example:
+mdio {
+        compatible = "virtual,mdio-gpio";
+        #address-cells = <1>;
+        #size-cells = <0>;
+        gpios = <&qe_pio_a 11
+                 &qe_pio_c 6>;
+};
diff --git a/Documentation/powerpc/dts-bindings/marvell.txt b/Documentation/powerpc/dts-bindings/marvell.txt
new file mode 100644
index 000000000000..3708a2fd4747
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/marvell.txt
@@ -0,0 +1,521 @@
+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 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>
+     - device_type : Should be "mdio"
+     - compatible : Should be "marvell,mv64360-mdio"
+   Example:
+     mdio {
+             #address-cells = <1>;
+             #size-cells = <0>;
+             device_type = "mdio";
+             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
+   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:
+     - device_type : Should be "network".
+     - 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 {
+             device_type = "network";
+             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:
+     - device_type : Should be "ethernet-phy"
+     - 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 {
+             device_type = "ethernet-phy";
+             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:
+     - device_type : "serial"
+     - 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 {
+             device_type = "serial";
+             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@0070 {
+             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@0380 {
+             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>;
+     };
diff --git a/Documentation/powerpc/dts-bindings/phy.txt b/Documentation/powerpc/dts-bindings/phy.txt
new file mode 100644
index 000000000000..bb8c742eb8c5
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/phy.txt
@@ -0,0 +1,25 @@
+PHY nodes
+Required properties:
+ - device_type : Should be "ethernet-phy"
+ - interrupts : <a b> where a is the interrupt number and b is a
+   field that represents an encoding of the sense and level
+   information for the interrupt.  This should be encoded based on
+   the information in section 2) depending on the type of interrupt
+   controller you have.
+ - 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
+ - linux,phandle :  phandle for this node; likely referenced by an
+   ethernet controller node.
+Example:
+ethernet-phy@0 {
+        linux,phandle = <2452000>
+        interrupt-parent = <40000>;
+        interrupts = <35 1>;
+        reg = <0>;
+        device_type = "ethernet-phy";
+};
diff --git a/Documentation/powerpc/dts-bindings/spi-bus.txt b/Documentation/powerpc/dts-bindings/spi-bus.txt
new file mode 100644
index 000000000000..e782add2e457
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/spi-bus.txt
@@ -0,0 +1,57 @@
+SPI (Serial Peripheral Interface) busses
+SPI busses can be described with a node for the SPI master device
+and a set of child nodes for each SPI slave on the bus.  For this
+discussion, it is assumed that the system's SPI controller is in
+SPI master mode.  This binding does not describe SPI controllers
+in slave mode.
+The SPI master node requires the following properties:
+- #address-cells  - number of cells required to define a chip select
+                address on the SPI bus.
+- #size-cells     - should be zero.
+- compatible      - name of SPI bus controller following generic names
+                recommended practice.
+No other properties are required in the SPI bus node.  It is assumed
+that a driver for an SPI bus device will understand that it is an SPI bus.
+However, the binding does not attempt to define the specific method for
+assigning chip select numbers.  Since SPI chip select configuration is
+flexible and non-standardized, it is left out of this binding with the
+assumption that board specific platform code will be used to manage
+chip selects.  Individual drivers can define additional properties to
+support describing the chip select layout.
+SPI slave nodes must be children of the SPI master node and can
+contain the following properties.
+- reg             - (required) chip select address of device.
+- compatible      - (required) name of SPI device following generic names
+                recommended practice
+- spi-max-frequency - (required) Maximum SPI clocking speed of device in Hz
+- spi-cpol        - (optional) Empty property indicating device requires
+                inverse clock polarity (CPOL) mode
+- spi-cpha        - (optional) Empty property indicating device requires
+                shifted clock phase (CPHA) mode
+- spi-cs-high     - (optional) Empty property indicating device requires
+                chip select active high
+SPI example for an MPC5200 SPI bus:
+        spi@f00 {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                compatible = "fsl,mpc5200b-spi","fsl,mpc5200-spi";
+                reg = <0xf00 0x20>;
+                interrupts = <2 13 0 2 14 0>;
+                interrupt-parent = <&mpc5200_pic>;
+                ethernet-switch@0 {
+                        compatible = "micrel,ks8995m";
+                        spi-max-frequency = <1000000>;
+                        reg = <0>;
+                };
+                codec@1 {
+                        compatible = "ti,tlv320aic26";
+                        spi-max-frequency = <100000>;
+                        reg = <1>;
+                };
+        };
diff --git a/Documentation/powerpc/dts-bindings/usb-ehci.txt b/Documentation/powerpc/dts-bindings/usb-ehci.txt
new file mode 100644
index 000000000000..fa18612f757b
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/usb-ehci.txt
@@ -0,0 +1,25 @@
+USB EHCI controllers
+Required properties:
+  - compatible : should be "usb-ehci".
+  - reg : should contain at least address and length of the standard EHCI
+    register set for the device. Optional platform-dependent registers
+    (debug-port or other) can be also specified here, but only after
+    definition of standard EHCI registers.
+  - interrupts : one EHCI interrupt should be described here.
+If device registers are implemented in big endian mode, the device
+node should have "big-endian-regs" property.
+If controller implementation operates with big endian descriptors,
+"big-endian-desc" property should be specified.
+If both big endian registers and descriptors are used by the controller
+implementation, "big-endian" property can be specified instead of having
+both "big-endian-regs" and "big-endian-desc".
+Example (Sequoia 440EPx):
+    ehci@e0000300 {
+           compatible = "ibm,usb-ehci-440epx", "usb-ehci";
+           interrupt-parent = <&UIC0>;
+           interrupts = <1a 4>;
+           reg = <0 e0000300 90 0 e0000390 70>;
+           big-endian;
+   };
diff --git a/Documentation/powerpc/dts-bindings/xilinx.txt b/Documentation/powerpc/dts-bindings/xilinx.txt
new file mode 100644
index 000000000000..80339fe4300b
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/xilinx.txt
@@ -0,0 +1,295 @@
+   d) Xilinx IP cores
+   The Xilinx EDK toolchain ships with a set of IP cores (devices) for use
+   in Xilinx Spartan and Virtex FPGAs.  The devices cover the whole range
+   of standard device types (network, serial, etc.) and miscellaneous
+   devices (gpio, LCD, spi, etc).  Also, since these devices are
+   implemented within the fpga fabric every instance of the device can be
+   synthesised with different options that change the behaviour.
+   Each IP-core has a set of parameters which the FPGA designer can use to
+   control how the core is synthesized.  Historically, the EDK tool would
+   extract the device parameters relevant to device drivers and copy them
+   into an 'xparameters.h' in the form of #define symbols.  This tells the
+   device drivers how the IP cores are configured, but it requres the kernel
+   to be recompiled every time the FPGA bitstream is resynthesized.
+   The new approach is to export the parameters into the device tree and
+   generate a new device tree each time the FPGA bitstream changes.  The
+   parameters which used to be exported as #defines will now become
+   properties of the device node.  In general, device nodes for IP-cores
+   will take the following form:
+        (name): (generic-name)@(base-address) {
+                compatible = "xlnx,(ip-core-name)-(HW_VER)"
+                             [, (list of compatible devices), ...];
+                reg = <(baseaddr) (size)>;
+                interrupt-parent = <&interrupt-controller-phandle>;
+                interrupts = < ... >;
+                xlnx,(parameter1) = "(string-value)";
+                xlnx,(parameter2) = <(int-value)>;
+        };
+        (generic-name):   an open firmware-style name that describes the
+                        generic class of device.  Preferably, this is one word, such
+                        as 'serial' or 'ethernet'.
+        (ip-core-name): the name of the ip block (given after the BEGIN
+                        directive in system.mhs).  Should be in lowercase
+                        and all underscores '_' converted to dashes '-'.
+        (name):         is derived from the "PARAMETER INSTANCE" value.
+        (parameter#):   C_* parameters from system.mhs.  The C_ prefix is
+                        dropped from the parameter name, the name is converted
+                        to lowercase and all underscore '_' characters are
+                        converted to dashes '-'.
+        (baseaddr):     the baseaddr parameter value (often named C_BASEADDR).
+        (HW_VER):       from the HW_VER parameter.
+        (size):         the address range size (often C_HIGHADDR - C_BASEADDR + 1).
+   Typically, the compatible list will include the exact IP core version
+   followed by an older IP core version which implements the same
+   interface or any other device with the same interface.
+   'reg', 'interrupt-parent' and 'interrupts' are all optional properties.
+   For example, the following block from system.mhs:
+        BEGIN opb_uartlite
+                PARAMETER INSTANCE = opb_uartlite_0
+                PARAMETER HW_VER = 1.00.b
+                PARAMETER C_BAUDRATE = 115200
+                PARAMETER C_DATA_BITS = 8
+                PARAMETER C_ODD_PARITY = 0
+                PARAMETER C_USE_PARITY = 0
+                PARAMETER C_CLK_FREQ = 50000000
+                PARAMETER C_BASEADDR = 0xEC100000
+                PARAMETER C_HIGHADDR = 0xEC10FFFF
+                BUS_INTERFACE SOPB = opb_7
+                PORT OPB_Clk = CLK_50MHz
+                PORT Interrupt = opb_uartlite_0_Interrupt
+                PORT RX = opb_uartlite_0_RX
+                PORT TX = opb_uartlite_0_TX
+                PORT OPB_Rst = sys_bus_reset_0
+        END
+   becomes the following device tree node:
+        opb_uartlite_0: serial@ec100000 {
+                device_type = "serial";
+                compatible = "xlnx,opb-uartlite-1.00.b";
+                reg = <ec100000 10000>;
+                interrupt-parent = <&opb_intc_0>;
+                interrupts = <1 0>; // got this from the opb_intc parameters
+                current-speed = <d#115200>;     // standard serial device prop
+                clock-frequency = <d#50000000>; // standard serial device prop
+                xlnx,data-bits = <8>;
+                xlnx,odd-parity = <0>;
+                xlnx,use-parity = <0>;
+        };
+   Some IP cores actually implement 2 or more logical devices.  In
+   this case, the device should still describe the whole IP core with
+   a single node and add a child node for each logical device.  The
+   ranges property can be used to translate from parent IP-core to the
+   registers of each device.  In addition, the parent node should be
+   compatible with the bus type 'xlnx,compound', and should contain
+   #address-cells and #size-cells, as with any other bus.  (Note: this
+   makes the assumption that both logical devices have the same bus
+   binding.  If this is not true, then separate nodes should be used
+   for each logical device).  The 'cell-index' property can be used to
+   enumerate logical devices within an IP core.  For example, the
+   following is the system.mhs entry for the dual ps2 controller found
+   on the ml403 reference design.
+        BEGIN opb_ps2_dual_ref
+                PARAMETER INSTANCE = opb_ps2_dual_ref_0
+                PARAMETER HW_VER = 1.00.a
+                PARAMETER C_BASEADDR = 0xA9000000
+                PARAMETER C_HIGHADDR = 0xA9001FFF
+                BUS_INTERFACE SOPB = opb_v20_0
+                PORT Sys_Intr1 = ps2_1_intr
+                PORT Sys_Intr2 = ps2_2_intr
+                PORT Clkin1 = ps2_clk_rx_1
+                PORT Clkin2 = ps2_clk_rx_2
+                PORT Clkpd1 = ps2_clk_tx_1
+                PORT Clkpd2 = ps2_clk_tx_2
+                PORT Rx1 = ps2_d_rx_1
+                PORT Rx2 = ps2_d_rx_2
+                PORT Txpd1 = ps2_d_tx_1
+                PORT Txpd2 = ps2_d_tx_2
+        END
+   It would result in the following device tree nodes:
+        opb_ps2_dual_ref_0: opb-ps2-dual-ref@a9000000 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "xlnx,compound";
+                ranges = <0 a9000000 2000>;
+                // If this device had extra parameters, then they would
+                // go here.
+                ps2@0 {
+                        compatible = "xlnx,opb-ps2-dual-ref-1.00.a";
+                        reg = <0 40>;
+                        interrupt-parent = <&opb_intc_0>;
+                        interrupts = <3 0>;
+                        cell-index = <0>;
+                };
+                ps2@1000 {
+                        compatible = "xlnx,opb-ps2-dual-ref-1.00.a";
+                        reg = <1000 40>;
+                        interrupt-parent = <&opb_intc_0>;
+                        interrupts = <3 0>;
+                        cell-index = <0>;
+                };
+        };
+   Also, the system.mhs file defines bus attachments from the processor
+   to the devices.  The device tree structure should reflect the bus
+   attachments.  Again an example; this system.mhs fragment:
+        BEGIN ppc405_virtex4
+                PARAMETER INSTANCE = ppc405_0
+                PARAMETER HW_VER = 1.01.a
+                BUS_INTERFACE DPLB = plb_v34_0
+                BUS_INTERFACE IPLB = plb_v34_0
+        END
+        BEGIN opb_intc
+                PARAMETER INSTANCE = opb_intc_0
+                PARAMETER HW_VER = 1.00.c
+                PARAMETER C_BASEADDR = 0xD1000FC0
+                PARAMETER C_HIGHADDR = 0xD1000FDF
+                BUS_INTERFACE SOPB = opb_v20_0
+        END
+        BEGIN opb_uart16550
+                PARAMETER INSTANCE = opb_uart16550_0
+                PARAMETER HW_VER = 1.00.d
+                PARAMETER C_BASEADDR = 0xa0000000
+                PARAMETER C_HIGHADDR = 0xa0001FFF
+                BUS_INTERFACE SOPB = opb_v20_0
+        END
+        BEGIN plb_v34
+                PARAMETER INSTANCE = plb_v34_0
+                PARAMETER HW_VER = 1.02.a
+        END
+        BEGIN plb_bram_if_cntlr
+                PARAMETER INSTANCE = plb_bram_if_cntlr_0
+                PARAMETER HW_VER = 1.00.b
+                PARAMETER C_BASEADDR = 0xFFFF0000
+                PARAMETER C_HIGHADDR = 0xFFFFFFFF
+                BUS_INTERFACE SPLB = plb_v34_0
+        END
+        BEGIN plb2opb_bridge
+                PARAMETER INSTANCE = plb2opb_bridge_0
+                PARAMETER HW_VER = 1.01.a
+                PARAMETER C_RNG0_BASEADDR = 0x20000000
+                PARAMETER C_RNG0_HIGHADDR = 0x3FFFFFFF
+                PARAMETER C_RNG1_BASEADDR = 0x60000000
+                PARAMETER C_RNG1_HIGHADDR = 0x7FFFFFFF
+                PARAMETER C_RNG2_BASEADDR = 0x80000000
+                PARAMETER C_RNG2_HIGHADDR = 0xBFFFFFFF
+                PARAMETER C_RNG3_BASEADDR = 0xC0000000
+                PARAMETER C_RNG3_HIGHADDR = 0xDFFFFFFF
+                BUS_INTERFACE SPLB = plb_v34_0
+                BUS_INTERFACE MOPB = opb_v20_0
+        END
+   Gives this device tree (some properties removed for clarity):
+        plb@0 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "xlnx,plb-v34-1.02.a";
+                device_type = "ibm,plb";
+                ranges; // 1:1 translation
+                plb_bram_if_cntrl_0: bram@ffff0000 {
+                        reg = <ffff0000 10000>;
+                }
+                opb@20000000 {
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        ranges = <20000000 20000000 20000000
+                                  60000000 60000000 20000000
+                                  80000000 80000000 40000000
+                                  c0000000 c0000000 20000000>;
+                        opb_uart16550_0: serial@a0000000 {
+                                reg = <a00000000 2000>;
+                        };
+                        opb_intc_0: interrupt-controller@d1000fc0 {
+                                reg = <d1000fc0 20>;
+                        };
+                };
+        };
+   That covers the general approach to binding xilinx IP cores into the
+   device tree.  The following are bindings for specific devices:
+      i) Xilinx ML300 Framebuffer
+      Simple framebuffer device from the ML300 reference design (also on the
+      ML403 reference design as well as others).
+      Optional properties:
+       - resolution = <xres yres> : pixel resolution of framebuffer.  Some
+                                    implementations use a different resolution.
+                                    Default is <d#640 d#480>
+       - virt-resolution = <xvirt yvirt> : Size of framebuffer in memory.
+                                           Default is <d#1024 d#480>.
+       - rotate-display (empty) : rotate display 180 degrees.
+      ii) Xilinx SystemACE
+      The Xilinx SystemACE device is used to program FPGAs from an FPGA
+      bitstream stored on a CF card.  It can also be used as a generic CF
+      interface device.
+      Optional properties:
+       - 8-bit (empty) : Set this property for SystemACE in 8 bit mode
+      iii) Xilinx EMAC and Xilinx TEMAC
+      Xilinx Ethernet devices.  In addition to general xilinx properties
+      listed above, nodes for these devices should include a phy-handle
+      property, and may include other common network device properties
+      like local-mac-address.
+      iv) Xilinx Uartlite
+      Xilinx uartlite devices are simple fixed speed serial ports.
+      Required properties:
+       - current-speed : Baud rate of uartlite
+      v) Xilinx hwicap
+                Xilinx hwicap devices provide access to the configuration logic
+                of the FPGA through the Internal Configuration Access Port
+                (ICAP).  The ICAP enables partial reconfiguration of the FPGA,
+                readback of the configuration information, and some control over
+                'warm boots' of the FPGA fabric.
+                Required properties:
+                - xlnx,family : The family of the FPGA, necessary since the
+                      capabilities of the underlying ICAP hardware
+                      differ between different families.  May be
+                      'virtex2p', 'virtex4', or 'virtex5'.
+      vi) Xilinx Uart 16550
+      Xilinx UART 16550 devices are very similar to the NS16550 but with
+      different register spacing and an offset from the base address.
+      Required properties:
+       - clock-frequency : Frequency of the clock input
+       - reg-offset : A value of 3 is required
+       - reg-shift : A value of 2 is required
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index bf6cedfa05db..d00131ca0835 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -62,7 +62,6 @@ config HAVE_LATENCYTOP_SUPPORT
 config TRACE_IRQFLAGS_SUPPORT
        bool
-        depends on PPC64
        default y
 config LOCKDEP_SUPPORT
diff --git a/arch/powerpc/boot/.gitignore b/arch/powerpc/boot/.gitignore
index 2f50acd11a60..3d80c3e9cf60 100644
--- a/arch/powerpc/boot/.gitignore
+++ b/arch/powerpc/boot/.gitignore
@@ -36,3 +36,13 @@ zImage.pseries
 zconf.h
 zlib.h
 zutil.h
+fdt.c
+fdt.h
+fdt_ro.c
+fdt_rw.c
+fdt_strerror.c
+fdt_sw.c
+fdt_wip.c
+libfdt.h
+libfdt_internal.h
diff --git a/arch/powerpc/boot/dts/amigaone.dts b/arch/powerpc/boot/dts/amigaone.dts
index 26549fca2ed4..49ac36b16dd7 100644
--- a/arch/powerpc/boot/dts/amigaone.dts
+++ b/arch/powerpc/boot/dts/amigaone.dts
@@ -70,8 +70,8 @@
                        devsel-speed = <0x00000001>;
                        min-grant = <0>;
                        max-latency = <0>;
-                        /* First 64k for I/O at 0x0 on PCI mapped to 0x0 on ISA. */
+                        /* First 4k for I/O at 0x0 on PCI mapped to 0x0 on ISA. */
-                        ranges = <0x00000001 0 0x01000000 0 0x00000000 0x00010000>;
+                        ranges = <0x00000001 0 0x01000000 0 0x00000000 0x00001000>;
                        interrupt-parent = <&i8259>;
                        #interrupt-cells = <2>;
                        #address-cells = <2>;
diff --git a/arch/powerpc/boot/dts/mpc8569mds.dts b/arch/powerpc/boot/dts/mpc8569mds.dts
index a8dcb018c4a5..a680165292f2 100644
--- a/arch/powerpc/boot/dts/mpc8569mds.dts
+++ b/arch/powerpc/boot/dts/mpc8569mds.dts
@@ -253,6 +253,7 @@
                        /* Filled in by U-Boot */
                        clock-frequency = <0>;
                        status = "disabled";
+                        sdhci,1-bit-only;
                };
                crypto@30000 {
diff --git a/arch/powerpc/include/asm/cpm1.h b/arch/powerpc/include/asm/cpm1.h
index 2ff798744c1d..7685ffde8821 100644
--- a/arch/powerpc/include/asm/cpm1.h
+++ b/arch/powerpc/include/asm/cpm1.h
@@ -598,8 +598,6 @@ typedef struct risc_timer_pram {
 #define CICR_IEN                ((uint)0x00000080)      /* Int. enable */
 #define CICR_SPS                ((uint)0x00000001)      /* SCC Spread */
-#define IMAP_ADDR               (get_immrbase())
 #define CPM_PIN_INPUT     0
 #define CPM_PIN_OUTPUT    1
 #define CPM_PIN_PRIMARY   0
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 3d9e887c3c0c..b44aaabdd1a6 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -309,7 +309,9 @@ static inline void dma_sync_single_for_cpu(struct device *dev,
        struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
        BUG_ON(!dma_ops);
-        dma_ops->sync_single_range_for_cpu(dev, dma_handle, 0,
+        if (dma_ops->sync_single_range_for_cpu)
+                dma_ops->sync_single_range_for_cpu(dev, dma_handle, 0,
                                           size, direction);
 }
@@ -320,7 +322,9 @@ static inline void dma_sync_single_for_device(struct device *dev,
        struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
        BUG_ON(!dma_ops);
-        dma_ops->sync_single_range_for_device(dev, dma_handle,
+        if (dma_ops->sync_single_range_for_device)
+                dma_ops->sync_single_range_for_device(dev, dma_handle,
                                              0, size, direction);
 }
@@ -331,7 +335,9 @@ static inline void dma_sync_sg_for_cpu(struct device *dev,
        struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
        BUG_ON(!dma_ops);
-        dma_ops->sync_sg_for_cpu(dev, sgl, nents, direction);
+        if (dma_ops->sync_sg_for_cpu)
+                dma_ops->sync_sg_for_cpu(dev, sgl, nents, direction);
 }
 static inline void dma_sync_sg_for_device(struct device *dev,
@@ -341,7 +347,9 @@ static inline void dma_sync_sg_for_device(struct device *dev,
        struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
        BUG_ON(!dma_ops);
-        dma_ops->sync_sg_for_device(dev, sgl, nents, direction);
+        if (dma_ops->sync_sg_for_device)
+                dma_ops->sync_sg_for_device(dev, sgl, nents, direction);
 }
 static inline void dma_sync_single_range_for_cpu(struct device *dev,
@@ -351,7 +359,9 @@ static inline void dma_sync_single_range_for_cpu(struct device *dev,
        struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
        BUG_ON(!dma_ops);
-        dma_ops->sync_single_range_for_cpu(dev, dma_handle,
+        if (dma_ops->sync_single_range_for_cpu)
+                dma_ops->sync_single_range_for_cpu(dev, dma_handle,
                                           offset, size, direction);
 }
@@ -362,7 +372,9 @@ static inline void dma_sync_single_range_for_device(struct device *dev,
        struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
        BUG_ON(!dma_ops);
-        dma_ops->sync_single_range_for_device(dev, dma_handle, offset,
+        if (dma_ops->sync_single_range_for_device)
+                dma_ops->sync_single_range_for_device(dev, dma_handle, offset,
                                              size, direction);
 }
 #else /* CONFIG_PPC_NEED_DMA_SYNC_OPS */
diff --git a/arch/powerpc/include/asm/highmem.h b/arch/powerpc/include/asm/highmem.h
index 684a73f4324f..a74c4ee6c020 100644
--- a/arch/powerpc/include/asm/highmem.h
+++ b/arch/powerpc/include/asm/highmem.h
@@ -22,9 +22,7 @@
 #ifdef __KERNEL__
-#include <linux/init.h>
 #include <linux/interrupt.h>
-#include <linux/highmem.h>
 #include <asm/kmap_types.h>
 #include <asm/tlbflush.h>
 #include <asm/page.h>
@@ -62,6 +60,9 @@ extern pte_t *pkmap_page_table;
 extern void *kmap_high(struct page *page);
 extern void kunmap_high(struct page *page);
+extern void *kmap_atomic_prot(struct page *page, enum km_type type,
+                              pgprot_t prot);
+extern void kunmap_atomic(void *kvaddr, enum km_type type);
 static inline void *kmap(struct page *page)
 {
@@ -79,62 +80,11 @@ static inline void kunmap(struct page *page)
        kunmap_high(page);
 }
-/*
- * The use of kmap_atomic/kunmap_atomic is discouraged - kmap/kunmap
- * gives a more generic (and caching) interface. But kmap_atomic can
- * be used in IRQ contexts, so in some (very limited) cases we need
- * it.
- */
-static inline void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
-{
-        unsigned int idx;
-        unsigned long vaddr;
-        /* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
-        pagefault_disable();
-        if (!PageHighMem(page))
-                return page_address(page);
-        debug_kmap_atomic(type);
-        idx = type + KM_TYPE_NR*smp_processor_id();
-        vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
-#ifdef CONFIG_DEBUG_HIGHMEM
-        BUG_ON(!pte_none(*(kmap_pte-idx)));
-#endif
-        __set_pte_at(&init_mm, vaddr, kmap_pte-idx, mk_pte(page, prot), 1);
-        local_flush_tlb_page(NULL, vaddr);
-        return (void*) vaddr;
-}
 static inline void *kmap_atomic(struct page *page, enum km_type type)
 {
        return kmap_atomic_prot(page, type, kmap_prot);
 }
-static inline void kunmap_atomic(void *kvaddr, enum km_type type)
-{
-#ifdef CONFIG_DEBUG_HIGHMEM
-        unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
-        enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
-        if (vaddr < __fix_to_virt(FIX_KMAP_END)) {
-                pagefault_enable();
-                return;
-        }
-        BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
-        /*
-         * force other mappings to Oops if they'll try to access
-         * this pte without first remap it
-         */
-        pte_clear(&init_mm, vaddr, kmap_pte-idx);
-        local_flush_tlb_page(NULL, vaddr);
-#endif
-        pagefault_enable();
-}
 static inline struct page *kmap_atomic_to_page(void *ptr)
 {
        unsigned long idx, vaddr = (unsigned long) ptr;
@@ -148,6 +98,7 @@ static inline struct page *kmap_atomic_to_page(void *ptr)
        return pte_page(*pte);
 }
 #define flush_cache_kmaps()     flush_cache_all()
 #endif /* __KERNEL__ */
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index 867ab8ed69b3..8b505eaaa38a 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -68,13 +68,13 @@ static inline int irqs_disabled_flags(unsigned long flags)
 #if defined(CONFIG_BOOKE)
 #define SET_MSR_EE(x)   mtmsr(x)
-#define local_irq_restore(flags)        __asm__ __volatile__("wrtee %0" : : "r" (flags) : "memory")
+#define raw_local_irq_restore(flags)    __asm__ __volatile__("wrtee %0" : : "r" (flags) : "memory")
 #else
 #define SET_MSR_EE(x)   mtmsr(x)
-#define local_irq_restore(flags)        mtmsr(flags)
+#define raw_local_irq_restore(flags)    mtmsr(flags)
 #endif
-static inline void local_irq_disable(void)
+static inline void raw_local_irq_disable(void)
 {
 #ifdef CONFIG_BOOKE
        __asm__ __volatile__("wrteei 0": : :"memory");
@@ -86,7 +86,7 @@ static inline void local_irq_disable(void)
 #endif
 }
-static inline void local_irq_enable(void)
+static inline void raw_local_irq_enable(void)
 {
 #ifdef CONFIG_BOOKE
        __asm__ __volatile__("wrteei 1": : :"memory");
@@ -98,7 +98,7 @@ static inline void local_irq_enable(void)
 #endif
 }
-static inline void local_irq_save_ptr(unsigned long *flags)
+static inline void raw_local_irq_save_ptr(unsigned long *flags)
 {
        unsigned long msr;
        msr = mfmsr();
@@ -110,12 +110,12 @@ static inline void local_irq_save_ptr(unsigned long *flags)
 #endif
 }
-#define local_save_flags(flags) ((flags) = mfmsr())
+#define raw_local_save_flags(flags)     ((flags) = mfmsr())
-#define local_irq_save(flags)   local_irq_save_ptr(&flags)
+#define raw_local_irq_save(flags)       raw_local_irq_save_ptr(&flags)
-#define irqs_disabled()         ((mfmsr() & MSR_EE) == 0)
+#define raw_irqs_disabled()             ((mfmsr() & MSR_EE) == 0)
+#define raw_irqs_disabled_flags(flags)  (((flags) & MSR_EE) == 0)
-#define hard_irq_enable()       local_irq_enable()
+#define hard_irq_disable()              raw_local_irq_disable()
-#define hard_irq_disable()      local_irq_disable()
 static inline int irqs_disabled_flags(unsigned long flags)
 {
diff --git a/arch/powerpc/include/asm/pte-hash64-64k.h b/arch/powerpc/include/asm/pte-hash64-64k.h
index e05d26fa372f..82b72207c51c 100644
--- a/arch/powerpc/include/asm/pte-hash64-64k.h
+++ b/arch/powerpc/include/asm/pte-hash64-64k.h
@@ -47,7 +47,8 @@
 * generic accessors and iterators here
 */
 #define __real_pte(e,p)         ((real_pte_t) { \
-        (e), pte_val(*((p) + PTRS_PER_PTE)) })
+                        (e), ((e) & _PAGE_COMBO) ? \
+                                (pte_val(*((p) + PTRS_PER_PTE))) : 0 })
 #define __rpte_to_hidx(r,index) ((pte_val((r).pte) & _PAGE_COMBO) ? \
        (((r).hidx >> ((index)<<2)) & 0xf) : ((pte_val((r).pte) >> 12) & 0xf))
 #define __rpte_to_pte(r)        ((r).pte)
diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h
index 01c12339b304..168fce726201 100644
--- a/arch/powerpc/include/asm/rtas.h
+++ b/arch/powerpc/include/asm/rtas.h
@@ -58,7 +58,7 @@ struct rtas_t {
        unsigned long entry;            /* physical address pointer */
        unsigned long base;             /* physical address pointer */
        unsigned long size;
-        spinlock_t lock;
+        raw_spinlock_t lock;
        struct rtas_args args;
        struct device_node *dev;        /* virtual address pointer */
 };
@@ -245,5 +245,8 @@ static inline u32 rtas_config_addr(int busno, int devfn, int reg)
                        (devfn << 8) | (reg & 0xff);
 }
+extern void __cpuinit rtas_give_timebase(void);
+extern void __cpuinit rtas_take_timebase(void);
 #endif /* __KERNEL__ */
 #endif /* _POWERPC_RTAS_H */
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 4dd38f129153..3cadba60a4b6 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -191,11 +191,49 @@ transfer_to_handler_cont:
        mflr    r9
        lwz     r11,0(r9)               /* virtual address of handler */
        lwz     r9,4(r9)                /* where to go when done */
+#ifdef CONFIG_TRACE_IRQFLAGS
+        lis     r12,reenable_mmu@h
+        ori     r12,r12,reenable_mmu@l
+        mtspr   SPRN_SRR0,r12
+        mtspr   SPRN_SRR1,r10
+        SYNC
+        RFI
+reenable_mmu:                           /* re-enable mmu so we can */
+        mfmsr   r10
+        lwz     r12,_MSR(r1)
+        xor     r10,r10,r12
+        andi.   r10,r10,MSR_EE          /* Did EE change? */
+        beq     1f
+        /* Save handler and return address into the 2 unused words
+         * of the STACK_FRAME_OVERHEAD (sneak sneak sneak). Everything
+         * else can be recovered from the pt_regs except r3 which for
+         * normal interrupts has been set to pt_regs and for syscalls
+         * is an argument, so we temporarily use ORIG_GPR3 to save it
+         */
+        stw     r9,8(r1)
+        stw     r11,12(r1)
+        stw     r3,ORIG_GPR3(r1)
+        bl      trace_hardirqs_off
+        lwz     r0,GPR0(r1)
+        lwz     r3,ORIG_GPR3(r1)
+        lwz     r4,GPR4(r1)
+        lwz     r5,GPR5(r1)
+        lwz     r6,GPR6(r1)
+        lwz     r7,GPR7(r1)
+        lwz     r8,GPR8(r1)
+        lwz     r9,8(r1)
+        lwz     r11,12(r1)
+1:      mtctr   r11
+        mtlr    r9
+        bctr                            /* jump to handler */
+#else /* CONFIG_TRACE_IRQFLAGS */
        mtspr   SPRN_SRR0,r11
        mtspr   SPRN_SRR1,r10
        mtlr    r9
        SYNC
        RFI                             /* jump to handler, enable MMU */
+#endif /* CONFIG_TRACE_IRQFLAGS */
 #if defined (CONFIG_6xx) || defined(CONFIG_E500)
 4:      rlwinm  r12,r12,0,~_TLF_NAPPING
@@ -251,6 +289,31 @@ _GLOBAL(DoSyscall)
 #ifdef SHOW_SYSCALLS
        bl      do_show_syscall
 #endif /* SHOW_SYSCALLS */
+#ifdef CONFIG_TRACE_IRQFLAGS
+        /* Return from syscalls can (and generally will) hard enable
+         * interrupts. You aren't supposed to call a syscall with
+         * interrupts disabled in the first place. However, to ensure
+         * that we get it right vs. lockdep if it happens, we force
+         * that hard enable here with appropriate tracing if we see
+         * that we have been called with interrupts off
+         */
+        mfmsr   r11
+        andi.   r12,r11,MSR_EE
+        bne+    1f
+        /* We came in with interrupts disabled, we enable them now */
+        bl      trace_hardirqs_on
+        mfmsr   r11
+        lwz     r0,GPR0(r1)
+        lwz     r3,GPR3(r1)
+        lwz     r4,GPR4(r1)
+        ori     r11,r11,MSR_EE
+        lwz     r5,GPR5(r1)
+        lwz     r6,GPR6(r1)
+        lwz     r7,GPR7(r1)
+        lwz     r8,GPR8(r1)
+        mtmsr   r11
+1:
+#endif /* CONFIG_TRACE_IRQFLAGS */
        rlwinm  r10,r1,0,0,(31-THREAD_SHIFT)    /* current_thread_info() */
        lwz     r11,TI_FLAGS(r10)
        andi.   r11,r11,_TIF_SYSCALL_T_OR_A
@@ -275,6 +338,7 @@ ret_from_syscall:
        rlwinm  r12,r1,0,0,(31-THREAD_SHIFT)    /* current_thread_info() */
        /* disable interrupts so current_thread_info()->flags can't change */
        LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
+        /* Note: We don't bother telling lockdep about it */
        SYNC
        MTMSRD(r10)
        lwz     r9,TI_FLAGS(r12)
@@ -288,6 +352,19 @@ ret_from_syscall:
        oris    r11,r11,0x1000  /* Set SO bit in CR */
        stw     r11,_CCR(r1)
 syscall_exit_cont:
+        lwz     r8,_MSR(r1)
+#ifdef CONFIG_TRACE_IRQFLAGS
+        /* If we are going to return from the syscall with interrupts
+         * off, we trace that here. It shouldn't happen though but we
+         * want to catch the bugger if it does right ?
+         */
+        andi.   r10,r8,MSR_EE
+        bne+    1f
+        stw     r3,GPR3(r1)
+        bl      trace_hardirqs_off
+        lwz     r3,GPR3(r1)
+1:
+#endif /* CONFIG_TRACE_IRQFLAGS */
 #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
        /* If the process has its own DBCR0 value, load it up.  The internal
           debug mode bit tells us that dbcr0 should be loaded. */
@@ -311,7 +388,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
        mtlr    r4
        mtcr    r5
        lwz     r7,_NIP(r1)
-        lwz     r8,_MSR(r1)
        FIX_SRR1(r8, r0)
        lwz     r2,GPR2(r1)
        lwz     r1,GPR1(r1)
@@ -394,7 +470,9 @@ syscall_exit_work:
        andi.   r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
        beq     ret_from_except
-        /* Re-enable interrupts */
+        /* Re-enable interrupts. There is no need to trace that with
+         * lockdep as we are supposed to have IRQs on at this point
+         */
        ori     r10,r10,MSR_EE
        SYNC
        MTMSRD(r10)
@@ -705,6 +783,7 @@ ret_from_except:
        /* Hard-disable interrupts so that current_thread_info()->flags
         * can't change between when we test it and when we return
         * from the interrupt. */
+        /* Note: We don't bother telling lockdep about it */
        LOAD_MSR_KERNEL(r10,MSR_KERNEL)
        SYNC                    /* Some chip revs have problems here... */
        MTMSRD(r10)             /* disable interrupts */
@@ -744,11 +823,24 @@ resume_kernel:
        beq+    restore
        andi.   r0,r3,MSR_EE    /* interrupts off? */
        beq     restore         /* don't schedule if so */
+#ifdef CONFIG_TRACE_IRQFLAGS
+        /* Lockdep thinks irqs are enabled, we need to call
+         * preempt_schedule_irq with IRQs off, so we inform lockdep
+         * now that we -did- turn them off already
+         */
+        bl      trace_hardirqs_off
+#endif
 1:      bl      preempt_schedule_irq
        rlwinm  r9,r1,0,0,(31-THREAD_SHIFT)
        lwz     r3,TI_FLAGS(r9)
        andi.   r0,r3,_TIF_NEED_RESCHED
        bne-    1b
+#ifdef CONFIG_TRACE_IRQFLAGS
+        /* And now, to properly rebalance the above, we tell lockdep they
+         * are being turned back on, which will happen when we return
+         */
+        bl      trace_hardirqs_on
+#endif
 #else
 resume_kernel:
 #endif /* CONFIG_PREEMPT */
@@ -765,6 +857,28 @@ restore:
        stw     r6,icache_44x_need_flush@l(r4)
 1:
 #endif  /* CONFIG_44x */
+        lwz     r9,_MSR(r1)
+#ifdef CONFIG_TRACE_IRQFLAGS
+        /* Lockdep doesn't know about the fact that IRQs are temporarily turned
+         * off in this assembly code while peeking at TI_FLAGS() and such. However
+         * we need to inform it if the exception turned interrupts off, and we
+         * are about to trun them back on.
+         *
+         * The problem here sadly is that we don't know whether the exceptions was
+         * one that turned interrupts off or not. So we always tell lockdep about
+         * turning them on here when we go back to wherever we came from with EE
+         * on, even if that may meen some redudant calls being tracked. Maybe later
+         * we could encode what the exception did somewhere or test the exception
+         * type in the pt_regs but that sounds overkill
+         */
+        andi.   r10,r9,MSR_EE
+        beq     1f
+        bl      trace_hardirqs_on
+        lwz     r9,_MSR(r1)
+1:
+#endif /* CONFIG_TRACE_IRQFLAGS */
        lwz     r0,GPR0(r1)
        lwz     r2,GPR2(r1)
        REST_4GPRS(3, r1)
@@ -782,7 +896,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
        stwcx.  r0,0,r1                 /* to clear the reservation */
 #if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
-        lwz     r9,_MSR(r1)
        andi.   r10,r9,MSR_RI           /* check if this exception occurred */
        beql    nonrecoverable          /* at a bad place (MSR:RI = 0) */
@@ -805,7 +918,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
        MTMSRD(r10)             /* clear the RI bit */
        .globl exc_exit_restart
 exc_exit_restart:
-        lwz     r9,_MSR(r1)
        lwz     r12,_NIP(r1)
        FIX_SRR1(r9,r10)
        mtspr   SPRN_SRR0,r12
@@ -1035,11 +1147,18 @@ do_work:			/* r10 contains MSR_KERNEL here */
        beq     do_user_signal
 do_resched:                     /* r10 contains MSR_KERNEL here */
+        /* Note: We don't need to inform lockdep that we are enabling
+         * interrupts here. As far as it knows, they are already enabled
+         */
        ori     r10,r10,MSR_EE
        SYNC
        MTMSRD(r10)             /* hard-enable interrupts */
        bl      schedule
 recheck:
+        /* Note: And we don't tell it we are disabling them again
+         * neither. Those disable/enable cycles used to peek at
+         * TI_FLAGS aren't advertised.
+         */
        LOAD_MSR_KERNEL(r10,MSR_KERNEL)
        SYNC
        MTMSRD(r10)             /* disable interrupts */
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index 48469463f89e..fc2132942754 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -1124,9 +1124,8 @@ mmu_off:
        RFI
 /*
- * Use the first pair of BAT registers to map the 1st 16MB
+ * On 601, we use 3 BATs to map up to 24M of RAM at _PAGE_OFFSET
- * of RAM to PAGE_OFFSET.  From this point on we can't safely
+ * (we keep one for debugging) and on others, we use one 256M BAT.
- * call OF any more.
 */
 initial_bats:
        lis     r11,PAGE_OFFSET@h
@@ -1136,12 +1135,16 @@ initial_bats:
        bne     4f
        ori     r11,r11,4               /* set up BAT registers for 601 */
        li      r8,0x7f                 /* valid, block length = 8MB */
-        oris    r9,r11,0x800000@h       /* set up BAT reg for 2nd 8M */
-        oris    r10,r8,0x800000@h       /* set up BAT reg for 2nd 8M */
        mtspr   SPRN_IBAT0U,r11         /* N.B. 601 has valid bit in */
        mtspr   SPRN_IBAT0L,r8          /* lower BAT register */
-        mtspr   SPRN_IBAT1U,r9
+        addis   r11,r11,0x800000@h
-        mtspr   SPRN_IBAT1L,r10
+        addis   r8,r8,0x800000@h
+        mtspr   SPRN_IBAT1U,r11
+        mtspr   SPRN_IBAT1L,r8
+        addis   r11,r11,0x800000@h
+        addis   r8,r8,0x800000@h
+        mtspr   SPRN_IBAT2U,r11
+        mtspr   SPRN_IBAT2L,r8
        isync
        blr
diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c
index fa983a59c4ce..a359cb08e900 100644
--- a/arch/powerpc/kernel/of_device.c
+++ b/arch/powerpc/kernel/of_device.c
@@ -76,7 +76,7 @@ struct of_device *of_device_alloc(struct device_node *np,
        dev->dev.archdata.of_node = np;
        if (bus_id)
-                dev_set_name(&dev->dev, bus_id);
+                dev_set_name(&dev->dev, "%s", bus_id);
        else
                of_device_make_bus_id(dev);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 3e7135bbe40f..892a9f2e6d76 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -528,7 +528,7 @@ void show_regs(struct pt_regs * regs)
        for (i = 0;  i < 32;  i++) {
                if ((i % REGS_PER_LINE) == 0)
-                        printk("\n" KERN_INFO "GPR%02d: ", i);
+                        printk("\nGPR%02d: ", i);
                printk(REG " ", regs->gpr[i]);
                if (i == LAST_VOLATILE && !FULL_REGS(regs))
                        break;
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index ee4c7609b649..c434823b8c83 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -38,9 +38,10 @@
 #include <asm/syscalls.h>
 #include <asm/smp.h>
 #include <asm/atomic.h>
+#include <asm/time.h>
 struct rtas_t rtas = {
-        .lock = SPIN_LOCK_UNLOCKED
+        .lock = __RAW_SPIN_LOCK_UNLOCKED
 };
 EXPORT_SYMBOL(rtas);
@@ -67,6 +68,28 @@ unsigned long rtas_rmo_buf;
 void (*rtas_flash_term_hook)(int);
 EXPORT_SYMBOL(rtas_flash_term_hook);
+/* RTAS use home made raw locking instead of spin_lock_irqsave
+ * because those can be called from within really nasty contexts
+ * such as having the timebase stopped which would lockup with
+ * normal locks and spinlock debugging enabled
+ */
+static unsigned long lock_rtas(void)
+{
+        unsigned long flags;
+        local_irq_save(flags);
+        preempt_disable();
+        __raw_spin_lock_flags(&rtas.lock, flags);
+        return flags;
+}
+static void unlock_rtas(unsigned long flags)
+{
+        __raw_spin_unlock(&rtas.lock);
+        local_irq_restore(flags);
+        preempt_enable();
+}
 /*
 * call_rtas_display_status and call_rtas_display_status_delay
 * are designed only for very early low-level debugging, which
@@ -79,7 +102,7 @@ static void call_rtas_display_status(char c)
        if (!rtas.base)
                return;
-        spin_lock_irqsave(&rtas.lock, s);
+        s = lock_rtas();
        args->token = 10;
        args->nargs = 1;
@@ -89,7 +112,7 @@ static void call_rtas_display_status(char c)
        enter_rtas(__pa(args));
-        spin_unlock_irqrestore(&rtas.lock, s);
+        unlock_rtas(s);
 }
 static void call_rtas_display_status_delay(char c)
@@ -411,8 +434,7 @@ int rtas_call(int token, int nargs, int nret, int *outputs, ...)
        if (!rtas.entry || token == RTAS_UNKNOWN_SERVICE)
                return -1;
-        /* Gotta do something different here, use global lock for now... */
+        s = lock_rtas();
-        spin_lock_irqsave(&rtas.lock, s);
        rtas_args = &rtas.args;
        rtas_args->token = token;
@@ -439,8 +461,7 @@ int rtas_call(int token, int nargs, int nret, int *outputs, ...)
                        outputs[i] = rtas_args->rets[i+1];
        ret = (nret > 0)? rtas_args->rets[0]: 0;
-        /* Gotta do something different here, use global lock for now... */
+        unlock_rtas(s);
-        spin_unlock_irqrestore(&rtas.lock, s);
        if (buff_copy) {
                log_error(buff_copy, ERR_TYPE_RTAS_LOG, 0);
@@ -837,7 +858,7 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
        buff_copy = get_errorlog_buffer();
-        spin_lock_irqsave(&rtas.lock, flags);
+        flags = lock_rtas();
        rtas.args = args;
        enter_rtas(__pa(&rtas.args));
@@ -848,7 +869,7 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
        if (args.rets[0] == -1)
                errbuf = __fetch_rtas_last_error(buff_copy);
-        spin_unlock_irqrestore(&rtas.lock, flags);
+        unlock_rtas(flags);
        if (buff_copy) {
                if (errbuf)
@@ -951,3 +972,33 @@ int __init early_init_dt_scan_rtas(unsigned long node,
        /* break now */
        return 1;
 }
+static raw_spinlock_t timebase_lock;
+static u64 timebase = 0;
+void __cpuinit rtas_give_timebase(void)
+{
+        unsigned long flags;
+        local_irq_save(flags);
+        hard_irq_disable();
+        __raw_spin_lock(&timebase_lock);
+        rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL);
+        timebase = get_tb();
+        __raw_spin_unlock(&timebase_lock);
+        while (timebase)
+                barrier();
+        rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL);
+        local_irq_restore(flags);
+}
+void __cpuinit rtas_take_timebase(void)
+{
+        while (!timebase)
+                barrier();
+        __raw_spin_lock(&timebase_lock);
+        set_tb(timebase >> 32, timebase & 0xffffffff);
+        timebase = 0;
+        __raw_spin_unlock(&timebase_lock);
+}
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 1d154248cf40..e1e3059cf34b 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -119,6 +119,8 @@ notrace unsigned long __init early_init(unsigned long dt_ptr)
 */
 notrace void __init machine_init(unsigned long dt_ptr)
 {
+        lockdep_init();
        /* Enable early debugging if any specified (see udbg.h) */
        udbg_early_init();
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 65484b2200b3..0b47de07302d 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -68,7 +68,8 @@ EXPORT_PER_CPU_SYMBOL(cpu_core_map);
 /* SMP operations for this machine */
 struct smp_ops_t *smp_ops;
-static volatile unsigned int cpu_callin_map[NR_CPUS];
+/* Can't be static due to PowerMac hackery */
+volatile unsigned int cpu_callin_map[NR_CPUS];
 int smt_enabled_at_boot = 1;
diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c
index 0362a891e54e..acb74a17bbbf 100644
--- a/arch/powerpc/kernel/udbg_16550.c
+++ b/arch/powerpc/kernel/udbg_16550.c
@@ -219,7 +219,7 @@ void udbg_init_pas_realmode(void)
 #ifdef CONFIG_PPC_EARLY_DEBUG_44x
 #include <platforms/44x/44x.h>
-static int udbg_44x_as1_flush(void)
+static void udbg_44x_as1_flush(void)
 {
        if (udbg_comport) {
                while ((as1_readb(&udbg_comport->lsr) & LSR_THRE) == 0)
diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
index 2d2192e48de7..3e68363405b7 100644
--- a/arch/powerpc/mm/Makefile
+++ b/arch/powerpc/mm/Makefile
@@ -30,3 +30,4 @@ obj-$(CONFIG_PPC_MM_SLICES)	+= slice.o
 obj-$(CONFIG_HUGETLB_PAGE)      += hugetlbpage.o
 obj-$(CONFIG_PPC_SUBPAGE_PROT)  += subpage-prot.o
 obj-$(CONFIG_NOT_COHERENT_CACHE) += dma-noncoherent.o
+obj-$(CONFIG_HIGHMEM)           += highmem.o
diff --git a/arch/powerpc/mm/highmem.c b/arch/powerpc/mm/highmem.c
new file mode 100644
index 000000000000..c2186c74c85a
--- /dev/null
+++ b/arch/powerpc/mm/highmem.c
@@ -0,0 +1,77 @@
+/*
+ * highmem.c: virtual kernel memory mappings for high memory
+ *
+ * PowerPC version, stolen from the i386 version.
+ *
+ * Used in CONFIG_HIGHMEM systems for memory pages which
+ * are not addressable by direct kernel virtual addresses.
+ *
+ * Copyright (C) 1999 Gerhard Wichert, Siemens AG
+ *                    Gerhard.Wichert@pdb.siemens.de
+ *
+ *
+ * Redesigned the x86 32-bit VM architecture to deal with
+ * up to 16 Terrabyte physical memory. With current x86 CPUs
+ * we now support up to 64 Gigabytes physical RAM.
+ *
+ * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
+ *
+ * Reworked for PowerPC by various contributors. Moved from
+ * highmem.h by Benjamin Herrenschmidt (c) 2009 IBM Corp.
+ */
+#include <linux/highmem.h>
+#include <linux/module.h>
+/*
+ * The use of kmap_atomic/kunmap_atomic is discouraged - kmap/kunmap
+ * gives a more generic (and caching) interface. But kmap_atomic can
+ * be used in IRQ contexts, so in some (very limited) cases we need
+ * it.
+ */
+void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+{
+        unsigned int idx;
+        unsigned long vaddr;
+        /* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
+        pagefault_disable();
+        if (!PageHighMem(page))
+                return page_address(page);
+        debug_kmap_atomic(type);
+        idx = type + KM_TYPE_NR*smp_processor_id();
+        vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+        BUG_ON(!pte_none(*(kmap_pte-idx)));
+#endif
+        __set_pte_at(&init_mm, vaddr, kmap_pte-idx, mk_pte(page, prot), 1);
+        local_flush_tlb_page(NULL, vaddr);
+        return (void*) vaddr;
+}
+EXPORT_SYMBOL(kmap_atomic_prot);
+void kunmap_atomic(void *kvaddr, enum km_type type)
+{
+#ifdef CONFIG_DEBUG_HIGHMEM
+        unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
+        enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+        if (vaddr < __fix_to_virt(FIX_KMAP_END)) {
+                pagefault_enable();
+                return;
+        }
+        BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+        /*
+         * force other mappings to Oops if they'll try to access
+         * this pte without first remap it
+         */
+        pte_clear(&init_mm, vaddr, kmap_pte-idx);
+        local_flush_tlb_page(NULL, vaddr);
+#endif
+        pagefault_enable();
+}
+EXPORT_SYMBOL(kunmap_atomic);
diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c
index 42e09a9f77e2..0362c88f47d7 100644
--- a/arch/powerpc/platforms/44x/warp.c
+++ b/arch/powerpc/platforms/44x/warp.c
@@ -16,6 +16,7 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/of_gpio.h>
+#include <linux/of_i2c.h>
 #include <asm/machdep.h>
 #include <asm/prom.h>
@@ -65,7 +66,6 @@ define_machine(warp) {
 static u32 post_info;
-/* I am not sure this is the best place for this... */
 static int __init warp_post_info(void)
 {
        struct device_node *np;
@@ -194,9 +194,9 @@ static int pika_setup_leds(void)
        return 0;
 }
-static void pika_setup_critical_temp(struct i2c_client *client)
+static void pika_setup_critical_temp(struct device_node *np,
+                                     struct i2c_client *client)
 {
-        struct device_node *np;
        int irq, rc;
        /* Do this before enabling critical temp interrupt since we
@@ -208,14 +208,7 @@ static void pika_setup_critical_temp(struct i2c_client *client)
        i2c_smbus_write_byte_data(client, 2, 65); /* Thigh */
        i2c_smbus_write_byte_data(client, 3,  0); /* Tlow */
-        np = of_find_compatible_node(NULL, NULL, "adi,ad7414");
-        if (np == NULL) {
-                printk(KERN_ERR __FILE__ ": Unable to find ad7414\n");
-                return;
-        }
        irq = irq_of_parse_and_map(np, 0);
-        of_node_put(np);
        if (irq  == NO_IRQ) {
                printk(KERN_ERR __FILE__ ": Unable to get ad7414 irq\n");
                return;
@@ -244,32 +237,24 @@ static inline void pika_dtm_check_fan(void __iomem *fpga)
 static int pika_dtm_thread(void __iomem *fpga)
 {
-        struct i2c_adapter *adap;
+        struct device_node *np;
        struct i2c_client *client;
-        /* We loop in case either driver was compiled as a module and
+        np = of_find_compatible_node(NULL, NULL, "adi,ad7414");
-         * has not been insmoded yet.
+        if (np == NULL)
-         */
+                return -ENOENT;
-        while (!(adap = i2c_get_adapter(0))) {
-                set_current_state(TASK_INTERRUPTIBLE);
-                schedule_timeout(HZ);
-        }
-        while (1) {
-                list_for_each_entry(client, &adap->clients, list)
-                        if (client->addr == 0x4a)
-                                goto found_it;
-                set_current_state(TASK_INTERRUPTIBLE);
+        client = of_find_i2c_device_by_node(np);
-                schedule_timeout(HZ);
+        if (client == NULL) {
+                of_node_put(np);
+                return -ENOENT;
        }
-found_it:
+        pika_setup_critical_temp(np, client);
-        pika_setup_critical_temp(client);
-        i2c_put_adapter(adap);
+        of_node_put(np);
-        printk(KERN_INFO "PIKA DTM thread running.\n");
+        printk(KERN_INFO "Warp DTM thread running.\n");
        while (!kthread_should_stop()) {
                int val;
@@ -291,7 +276,6 @@ found_it:
        return 0;
 }
 static int __init pika_dtm_start(void)
 {
        struct task_struct *dtm_thread;
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 77f90b356356..60ed9c067b1d 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -285,6 +285,7 @@ static struct of_device_id mpc85xx_ids[] = {
        { .type = "qe", },
        { .compatible = "fsl,qe", },
        { .compatible = "gianfar", },
+        { .compatible = "fsl,rapidio-delta", },
        {},
 };
diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c
index cc0b0db8a6f3..62c592ede641 100644
--- a/arch/powerpc/platforms/85xx/smp.c
+++ b/arch/powerpc/platforms/85xx/smp.c
@@ -52,20 +52,19 @@ smp_85xx_kick_cpu(int nr)
        pr_debug("smp_85xx_kick_cpu: kick CPU #%d\n", nr);
-        local_irq_save(flags);
        np = of_get_cpu_node(nr, NULL);
        cpu_rel_addr = of_get_property(np, "cpu-release-addr", NULL);
        if (cpu_rel_addr == NULL) {
                printk(KERN_ERR "No cpu-release-addr for cpu %d\n", nr);
-                local_irq_restore(flags);
                return;
        }
        /* Map the spin table */
        bptr_vaddr = ioremap(*cpu_rel_addr, SIZE_BOOT_ENTRY);
+        local_irq_save(flags);
        out_be32(bptr_vaddr + BOOT_ENTRY_PIR, nr);
        out_be32(bptr_vaddr + BOOT_ENTRY_ADDR_LOWER, __pa(__early_start));
@@ -73,10 +72,10 @@ smp_85xx_kick_cpu(int nr)
        while ((__secondary_hold_acknowledge != nr) && (++n < 1000))
                mdelay(1);
-        iounmap(bptr_vaddr);
        local_irq_restore(flags);
+        iounmap(bptr_vaddr);
        pr_debug("waited %d msecs for CPU #%d.\n", n, nr);
 }
diff --git a/arch/powerpc/platforms/85xx/socrates.c b/arch/powerpc/platforms/85xx/socrates.c
index d0e8443b12c6..747d8fb3ab82 100644
--- a/arch/powerpc/platforms/85xx/socrates.c
+++ b/arch/powerpc/platforms/85xx/socrates.c
@@ -102,10 +102,11 @@ static struct of_device_id __initdata socrates_of_bus_ids[] = {
        {},
 };
-static void __init socrates_init(void)
+static int __init socrates_publish_devices(void)
 {
-        of_platform_bus_probe(NULL, socrates_of_bus_ids, NULL);
+        return of_platform_bus_probe(NULL, socrates_of_bus_ids, NULL);
 }
+machine_device_initcall(socrates, socrates_publish_devices);
 /*
 * Called very early, device-tree isn't unflattened
@@ -124,7 +125,6 @@ define_machine(socrates) {
        .name                   = "Socrates",
        .probe                  = socrates_probe,
        .setup_arch             = socrates_setup_arch,
-        .init                   = socrates_init,
        .init_IRQ               = socrates_pic_init,
        .get_irq                = mpic_get_irq,
        .restart                = fsl_rstcr_restart,
diff --git a/arch/powerpc/platforms/85xx/xes_mpc85xx.c b/arch/powerpc/platforms/85xx/xes_mpc85xx.c
index ee01532786e4..1b426050a2f9 100644
--- a/arch/powerpc/platforms/85xx/xes_mpc85xx.c
+++ b/arch/powerpc/platforms/85xx/xes_mpc85xx.c
@@ -32,7 +32,6 @@
 #include <sysdev/fsl_soc.h>
 #include <sysdev/fsl_pci.h>
-#include <linux/of_platform.h>
 /* A few bit definitions needed for fixups on some boards */
 #define MPC85xx_L2CTL_L2E               0x80000000 /* L2 enable */
diff --git a/arch/powerpc/platforms/cell/smp.c b/arch/powerpc/platforms/cell/smp.c
index 9046803c8276..bc97fada48c6 100644
--- a/arch/powerpc/platforms/cell/smp.c
+++ b/arch/powerpc/platforms/cell/smp.c
@@ -36,7 +36,6 @@
 #include <asm/prom.h>
 #include <asm/smp.h>
 #include <asm/paca.h>
-#include <asm/time.h>
 #include <asm/machdep.h>
 #include <asm/cputable.h>
 #include <asm/firmware.h>
@@ -140,31 +139,6 @@ static void __devinit smp_cell_setup_cpu(int cpu)
        mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER);
 }
-static DEFINE_SPINLOCK(timebase_lock);
-static unsigned long timebase = 0;
-static void __devinit cell_give_timebase(void)
-{
-        spin_lock(&timebase_lock);
-        rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL);
-        timebase = get_tb();
-        spin_unlock(&timebase_lock);
-        while (timebase)
-                barrier();
-        rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL);
-}
-static void __devinit cell_take_timebase(void)
-{
-        while (!timebase)
-                barrier();
-        spin_lock(&timebase_lock);
-        set_tb(timebase >> 32, timebase & 0xffffffff);
-        timebase = 0;
-        spin_unlock(&timebase_lock);
-}
 static void __devinit smp_cell_kick_cpu(int nr)
 {
        BUG_ON(nr < 0 || nr >= NR_CPUS);
@@ -224,8 +198,8 @@ void __init smp_init_cell(void)
        /* Non-lpar has additional take/give timebase */
        if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) {
-                smp_ops->give_timebase = cell_give_timebase;
+                smp_ops->give_timebase = rtas_give_timebase;
-                smp_ops->take_timebase = cell_take_timebase;
+                smp_ops->take_timebase = rtas_take_timebase;
        }
        DBG(" <- smp_init_cell()\n");
diff --git a/arch/powerpc/platforms/chrp/smp.c b/arch/powerpc/platforms/chrp/smp.c
index 10a4a4d063b6..02cafecc90e3 100644
--- a/arch/powerpc/platforms/chrp/smp.c
+++ b/arch/powerpc/platforms/chrp/smp.c
@@ -26,7 +26,6 @@
 #include <asm/io.h>
 #include <asm/prom.h>
 #include <asm/smp.h>
-#include <asm/time.h>
 #include <asm/machdep.h>
 #include <asm/mpic.h>
 #include <asm/rtas.h>
@@ -42,40 +41,12 @@ static void __devinit smp_chrp_setup_cpu(int cpu_nr)
        mpic_setup_this_cpu();
 }
-static DEFINE_SPINLOCK(timebase_lock);
-static unsigned int timebase_upper = 0, timebase_lower = 0;
-void __devinit smp_chrp_give_timebase(void)
-{
-        spin_lock(&timebase_lock);
-        rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL);
-        timebase_upper = get_tbu();
-        timebase_lower = get_tbl();
-        spin_unlock(&timebase_lock);
-        while (timebase_upper || timebase_lower)
-                barrier();
-        rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL);
-}
-void __devinit smp_chrp_take_timebase(void)
-{
-        while (!(timebase_upper || timebase_lower))
-                barrier();
-        spin_lock(&timebase_lock);
-        set_tb(timebase_upper, timebase_lower);
-        timebase_upper = 0;
-        timebase_lower = 0;
-        spin_unlock(&timebase_lock);
-        printk("CPU %i taken timebase\n", smp_processor_id());
-}
 /* CHRP with openpic */
 struct smp_ops_t chrp_smp_ops = {
        .message_pass = smp_mpic_message_pass,
        .probe = smp_mpic_probe,
        .kick_cpu = smp_chrp_kick_cpu,
        .setup_cpu = smp_chrp_setup_cpu,
-        .give_timebase = smp_chrp_give_timebase,
+        .give_timebase = rtas_give_timebase,
-        .take_timebase = smp_chrp_take_timebase,
+        .take_timebase = rtas_take_timebase,
 };
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index 153051eb6d93..a4619347aa7e 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -71,20 +71,25 @@ static void pas_restart(char *cmd)
 }
 #ifdef CONFIG_SMP
-static DEFINE_SPINLOCK(timebase_lock);
+static raw_spinlock_t timebase_lock;
 static unsigned long timebase;
 static void __devinit pas_give_timebase(void)
 {
-        spin_lock(&timebase_lock);
+        unsigned long flags;
+        local_irq_save(flags);
+        hard_irq_disable();
+        __raw_spin_lock(&timebase_lock);
        mtspr(SPRN_TBCTL, TBCTL_FREEZE);
        isync();
        timebase = get_tb();
-        spin_unlock(&timebase_lock);
+        __raw_spin_unlock(&timebase_lock);
        while (timebase)
                barrier();
        mtspr(SPRN_TBCTL, TBCTL_RESTART);
+        local_irq_restore(flags);
 }
 static void __devinit pas_take_timebase(void)
@@ -92,10 +97,10 @@ static void __devinit pas_take_timebase(void)
        while (!timebase)
                smp_rmb();
-        spin_lock(&timebase_lock);
+        __raw_spin_lock(&timebase_lock);
        set_tb(timebase >> 32, timebase & 0xffffffff);
        timebase = 0;
-        spin_unlock(&timebase_lock);
+        __raw_spin_unlock(&timebase_lock);
 }
 struct smp_ops_t pas_smp_ops = {
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 86f69a4eb49b..c20522656367 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -103,11 +103,6 @@ unsigned long smu_cmdbuf_abs;
 EXPORT_SYMBOL(smu_cmdbuf_abs);
 #endif
-#ifdef CONFIG_SMP
-extern struct smp_ops_t psurge_smp_ops;
-extern struct smp_ops_t core99_smp_ops;
-#endif /* CONFIG_SMP */
 static void pmac_show_cpuinfo(struct seq_file *m)
 {
        struct device_node *np;
@@ -341,34 +336,6 @@ static void __init pmac_setup_arch(void)
                ROOT_DEV = DEFAULT_ROOT_DEVICE;
 #endif
-#ifdef CONFIG_SMP
-        /* Check for Core99 */
-        ic = of_find_node_by_name(NULL, "uni-n");
-        if (!ic)
-                ic = of_find_node_by_name(NULL, "u3");
-        if (!ic)
-                ic = of_find_node_by_name(NULL, "u4");
-        if (ic) {
-                of_node_put(ic);
-                smp_ops = &core99_smp_ops;
-        }
-#ifdef CONFIG_PPC32
-        else {
-                /*
-                 * We have to set bits in cpu_possible_map here since the
-                 * secondary CPU(s) aren't in the device tree, and
-                 * setup_per_cpu_areas only allocates per-cpu data for
-                 * CPUs in the cpu_possible_map.
-                 */
-                int cpu;
-                for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu)
-                        cpu_set(cpu, cpu_possible_map);
-                smp_ops = &psurge_smp_ops;
-        }
-#endif
-#endif /* CONFIG_SMP */
 #ifdef CONFIG_ADB
        if (strstr(cmd_line, "adb_sync")) {
                extern int __adb_probe_sync;
@@ -512,6 +479,14 @@ static void __init pmac_init_early(void)
 #ifdef CONFIG_PPC64
        iommu_init_early_dart();
 #endif
+        /* SMP Init has to be done early as we need to patch up
+         * cpu_possible_map before interrupt stacks are allocated
+         * or kaboom...
+         */
+#ifdef CONFIG_SMP
+        pmac_setup_smp();
+#endif
 }
 static int __init pmac_declare_of_platform_devices(void)
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index cf1dbe758890..6d4da7b46b41 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -64,10 +64,11 @@
 extern void __secondary_start_pmac_0(void);
 extern int pmac_pfunc_base_install(void);
-#ifdef CONFIG_PPC32
+static void (*pmac_tb_freeze)(int freeze);
+static u64 timebase;
+static int tb_req;
-/* Sync flag for HW tb sync */
+#ifdef CONFIG_PPC32
-static volatile int sec_tb_reset = 0;
 /*
 * Powersurge (old powermac SMP) support.
@@ -294,6 +295,9 @@ static int __init smp_psurge_probe(void)
                psurge_quad_init();
                /* All released cards using this HW design have 4 CPUs */
                ncpus = 4;
+                /* No sure how timebase sync works on those, let's use SW */
+                smp_ops->give_timebase = smp_generic_give_timebase;
+                smp_ops->take_timebase = smp_generic_take_timebase;
        } else {
                iounmap(quad_base);
                if ((in_8(hhead_base + HHEAD_CONFIG) & 0x02) == 0) {
@@ -308,18 +312,15 @@ static int __init smp_psurge_probe(void)
        psurge_start = ioremap(PSURGE_START, 4);
        psurge_pri_intr = ioremap(PSURGE_PRI_INTR, 4);
-        /*
+        /* This is necessary because OF doesn't know about the
-         * This is necessary because OF doesn't know about the
         * secondary cpu(s), and thus there aren't nodes in the
         * device tree for them, and smp_setup_cpu_maps hasn't
-         * set their bits in cpu_possible_map and cpu_present_map.
+         * set their bits in cpu_present_map.
         */
        if (ncpus > NR_CPUS)
                ncpus = NR_CPUS;
-        for (i = 1; i < ncpus ; ++i) {
+        for (i = 1; i < ncpus ; ++i)
                cpu_set(i, cpu_present_map);
-                set_hard_smp_processor_id(i, i);
-        }
        if (ppc_md.progress) ppc_md.progress("smp_psurge_probe - done", 0x352);
@@ -329,8 +330,14 @@ static int __init smp_psurge_probe(void)
 static void __init smp_psurge_kick_cpu(int nr)
 {
        unsigned long start = __pa(__secondary_start_pmac_0) + nr * 8;
-        unsigned long a;
+        unsigned long a, flags;
-        int i;
+        int i, j;
+        /* Defining this here is evil ... but I prefer hiding that
+         * crap to avoid giving people ideas that they can do the
+         * same.
+         */
+        extern volatile unsigned int cpu_callin_map[NR_CPUS];
        /* may need to flush here if secondary bats aren't setup */
        for (a = KERNELBASE; a < KERNELBASE + 0x800000; a += 32)
@@ -339,47 +346,52 @@ static void __init smp_psurge_kick_cpu(int nr)
        if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu", 0x353);
+        /* This is going to freeze the timeebase, we disable interrupts */
+        local_irq_save(flags);
        out_be32(psurge_start, start);
        mb();
        psurge_set_ipi(nr);
        /*
         * We can't use udelay here because the timebase is now frozen.
         */
        for (i = 0; i < 2000; ++i)
-                barrier();
+                asm volatile("nop" : : : "memory");
        psurge_clr_ipi(nr);
-        if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu - done", 0x354);
+        /*
-}
+         * Also, because the timebase is frozen, we must not return to the
+         * caller which will try to do udelay's etc... Instead, we wait -here-
-/*
+         * for the CPU to callin.
- * With the dual-cpu powersurge board, the decrementers and timebases
+         */
- * of both cpus are frozen after the secondary cpu is started up,
+        for (i = 0; i < 100000 && !cpu_callin_map[nr]; ++i) {
- * until we give the secondary cpu another interrupt.  This routine
+                for (j = 1; j < 10000; j++)
- * uses this to get the timebases synchronized.
+                        asm volatile("nop" : : : "memory");
- *  -- paulus.
+                asm volatile("sync" : : : "memory");
- */
+        }
-static void __init psurge_dual_sync_tb(int cpu_nr)
+        if (!cpu_callin_map[nr])
-{
+                goto stuck;
-        int t;
+        /* And we do the TB sync here too for standard dual CPU cards */
-        set_dec(tb_ticks_per_jiffy);
+        if (psurge_type == PSURGE_DUAL) {
-        /* XXX fixme */
+                while(!tb_req)
-        set_tb(0, 0);
+                        barrier();
+                tb_req = 0;
-        if (cpu_nr > 0) {
+                mb();
+                timebase = get_tb();
+                mb();
+                while (timebase)
+                        barrier();
                mb();
-                sec_tb_reset = 1;
-                return;
        }
+ stuck:
+        /* now interrupt the secondary, restarting both TBs */
+        if (psurge_type == PSURGE_DUAL)
+                psurge_set_ipi(1);
-        /* wait for the secondary to have reset its TB before proceeding */
+        if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu - done", 0x354);
-        for (t = 10000000; t > 0 && !sec_tb_reset; --t)
-                ;
-        /* now interrupt the secondary, starting both TBs */
-        psurge_set_ipi(1);
 }
 static struct irqaction psurge_irqaction = {
@@ -390,36 +402,35 @@ static struct irqaction psurge_irqaction = {
 static void __init smp_psurge_setup_cpu(int cpu_nr)
 {
+        if (cpu_nr != 0)
+                return;
-        if (cpu_nr == 0) {
+        /* reset the entry point so if we get another intr we won't
-                /* If we failed to start the second CPU, we should still
+         * try to startup again */
-                 * send it an IPI to start the timebase & DEC or we might
+        out_be32(psurge_start, 0x100);
-                 * have them stuck.
+        if (setup_irq(30, &psurge_irqaction))
-                 */
+                printk(KERN_ERR "Couldn't get primary IPI interrupt");
-                if (num_online_cpus() < 2) {
-                        if (psurge_type == PSURGE_DUAL)
-                                psurge_set_ipi(1);
-                        return;
-                }
-                /* reset the entry point so if we get another intr we won't
-                 * try to startup again */
-                out_be32(psurge_start, 0x100);
-                if (setup_irq(30, &psurge_irqaction))
-                        printk(KERN_ERR "Couldn't get primary IPI interrupt");
-        }
-        if (psurge_type == PSURGE_DUAL)
-                psurge_dual_sync_tb(cpu_nr);
 }
 void __init smp_psurge_take_timebase(void)
 {
-        /* Dummy implementation */
+        if (psurge_type != PSURGE_DUAL)
+                return;
+        tb_req = 1;
+        mb();
+        while (!timebase)
+                barrier();
+        mb();
+        set_tb(timebase >> 32, timebase & 0xffffffff);
+        timebase = 0;
+        mb();
+        set_dec(tb_ticks_per_jiffy/2);
 }
 void __init smp_psurge_give_timebase(void)
 {
-        /* Dummy implementation */
+        /* Nothing to do here */
 }
 /* PowerSurge-style Macs */
@@ -437,9 +448,6 @@ struct smp_ops_t psurge_smp_ops = {
 * Core 99 and later support
 */
-static void (*pmac_tb_freeze)(int freeze);
-static u64 timebase;
-static int tb_req;
 static void smp_core99_give_timebase(void)
 {
@@ -478,7 +486,6 @@ static void __devinit smp_core99_take_timebase(void)
        set_tb(timebase >> 32, timebase & 0xffffffff);
        timebase = 0;
        mb();
-        set_dec(tb_ticks_per_jiffy/2);
        local_irq_restore(flags);
 }
@@ -920,3 +927,34 @@ struct smp_ops_t core99_smp_ops = {
 # endif
 #endif
 };
+void __init pmac_setup_smp(void)
+{
+        struct device_node *np;
+        /* Check for Core99 */
+        np = of_find_node_by_name(NULL, "uni-n");
+        if (!np)
+                np = of_find_node_by_name(NULL, "u3");
+        if (!np)
+                np = of_find_node_by_name(NULL, "u4");
+        if (np) {
+                of_node_put(np);
+                smp_ops = &core99_smp_ops;
+        }
+#ifdef CONFIG_PPC32
+        else {
+                /* We have to set bits in cpu_possible_map here since the
+                 * secondary CPU(s) aren't in the device tree. Various
+                 * things won't be initialized for CPUs not in the possible
+                 * map, so we really need to fix it up here.
+                 */
+                int cpu;
+                for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu)
+                        cpu_set(cpu, cpu_possible_map);
+                smp_ops = &psurge_smp_ops;
+        }
+#endif /* CONFIG_PPC32 */
+}
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 1a231c389ba0..1f8f6cfb94f7 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -35,7 +35,6 @@
 #include <asm/prom.h>
 #include <asm/smp.h>
 #include <asm/paca.h>
-#include <asm/time.h>
 #include <asm/machdep.h>
 #include <asm/cputable.h>
 #include <asm/firmware.h>
@@ -118,31 +117,6 @@ static void __devinit smp_xics_setup_cpu(int cpu)
 }
 #endif /* CONFIG_XICS */
-static DEFINE_SPINLOCK(timebase_lock);
-static unsigned long timebase = 0;
-static void __devinit pSeries_give_timebase(void)
-{
-        spin_lock(&timebase_lock);
-        rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL);
-        timebase = get_tb();
-        spin_unlock(&timebase_lock);
-        while (timebase)
-                barrier();
-        rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL);
-}
-static void __devinit pSeries_take_timebase(void)
-{
-        while (!timebase)
-                barrier();
-        spin_lock(&timebase_lock);
-        set_tb(timebase >> 32, timebase & 0xffffffff);
-        timebase = 0;
-        spin_unlock(&timebase_lock);
-}
 static void __devinit smp_pSeries_kick_cpu(int nr)
 {
        BUG_ON(nr < 0 || nr >= NR_CPUS);
@@ -209,8 +183,8 @@ static void __init smp_init_pseries(void)
        /* Non-lpar has additional take/give timebase */
        if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) {
-                smp_ops->give_timebase = pSeries_give_timebase;
+                smp_ops->give_timebase = rtas_give_timebase;
-                smp_ops->take_timebase = pSeries_take_timebase;
+                smp_ops->take_timebase = rtas_take_timebase;
        }
        pr_debug(" <- smp_init_pSeries()\n");
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 9c3af5045495..d46de1f0f3ee 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -279,28 +279,29 @@ static void _mpic_map_mmio(struct mpic *mpic, phys_addr_t phys_addr,
 }
 #ifdef CONFIG_PPC_DCR
-static void _mpic_map_dcr(struct mpic *mpic, struct mpic_reg_bank *rb,
+static void _mpic_map_dcr(struct mpic *mpic, struct device_node *node,
+                          struct mpic_reg_bank *rb,
                          unsigned int offset, unsigned int size)
 {
        const u32 *dbasep;
-        dbasep = of_get_property(mpic->irqhost->of_node, "dcr-reg", NULL);
+        dbasep = of_get_property(node, "dcr-reg", NULL);
-        rb->dhost = dcr_map(mpic->irqhost->of_node, *dbasep + offset, size);
+        rb->dhost = dcr_map(node, *dbasep + offset, size);
        BUG_ON(!DCR_MAP_OK(rb->dhost));
 }
-static inline void mpic_map(struct mpic *mpic, phys_addr_t phys_addr,
+static inline void mpic_map(struct mpic *mpic, struct device_node *node,
-                            struct mpic_reg_bank *rb, unsigned int offset,
+                            phys_addr_t phys_addr, struct mpic_reg_bank *rb,
-                            unsigned int size)
+                            unsigned int offset, unsigned int size)
 {
        if (mpic->flags & MPIC_USES_DCR)
-                _mpic_map_dcr(mpic, rb, offset, size);
+                _mpic_map_dcr(mpic, node, rb, offset, size);
        else
                _mpic_map_mmio(mpic, phys_addr, rb, offset, size);
 }
 #else /* CONFIG_PPC_DCR */
-#define mpic_map(m,p,b,o,s)     _mpic_map_mmio(m,p,b,o,s)
+#define mpic_map(m,n,p,b,o,s)   _mpic_map_mmio(m,p,b,o,s)
 #endif /* !CONFIG_PPC_DCR */
@@ -1052,11 +1053,10 @@ struct mpic * __init mpic_alloc(struct device_node *node,
        int             intvec_top;
        u64             paddr = phys_addr;
-        mpic = alloc_bootmem(sizeof(struct mpic));
+        mpic = kzalloc(sizeof(struct mpic), GFP_KERNEL);
        if (mpic == NULL)
                return NULL;
-        
-        memset(mpic, 0, sizeof(struct mpic));
        mpic->name = name;
        mpic->hc_irq = mpic_irq_chip;
@@ -1152,8 +1152,8 @@ struct mpic * __init mpic_alloc(struct device_node *node,
        }
        /* Map the global registers */
-        mpic_map(mpic, paddr, &mpic->gregs, MPIC_INFO(GREG_BASE), 0x1000);
+        mpic_map(mpic, node, paddr, &mpic->gregs, MPIC_INFO(GREG_BASE), 0x1000);
-        mpic_map(mpic, paddr, &mpic->tmregs, MPIC_INFO(TIMER_BASE), 0x1000);
+        mpic_map(mpic, node, paddr, &mpic->tmregs, MPIC_INFO(TIMER_BASE), 0x1000);
        /* Reset */
        if (flags & MPIC_WANTS_RESET) {
@@ -1194,7 +1194,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
        /* Map the per-CPU registers */
        for (i = 0; i < mpic->num_cpus; i++) {
-                mpic_map(mpic, paddr, &mpic->cpuregs[i],
+                mpic_map(mpic, node, paddr, &mpic->cpuregs[i],
                         MPIC_INFO(CPU_BASE) + i * MPIC_INFO(CPU_STRIDE),
                         0x1000);
        }
@@ -1202,7 +1202,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
        /* Initialize main ISU if none provided */
        if (mpic->isu_size == 0) {
                mpic->isu_size = mpic->num_sources;
-                mpic_map(mpic, paddr, &mpic->isus[0],
+                mpic_map(mpic, node, paddr, &mpic->isus[0],
                         MPIC_INFO(IRQ_BASE), MPIC_INFO(IRQ_STRIDE) * mpic->isu_size);
        }
        mpic->isu_shift = 1 + __ilog2(mpic->isu_size - 1);
@@ -1256,8 +1256,10 @@ void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num,
        BUG_ON(isu_num >= MPIC_MAX_ISU);
-        mpic_map(mpic, paddr, &mpic->isus[isu_num], 0,
+        mpic_map(mpic, mpic->irqhost->of_node,
+                 paddr, &mpic->isus[isu_num], 0,
                 MPIC_INFO(IRQ_STRIDE) * mpic->isu_size);
        if ((isu_first + mpic->isu_size) > mpic->num_sources)
                mpic->num_sources = isu_first + mpic->isu_size;
 }
diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c
index b28b0e512d67..237e3654f48c 100644
--- a/arch/powerpc/sysdev/qe_lib/qe.c
+++ b/arch/powerpc/sysdev/qe_lib/qe.c
@@ -112,6 +112,7 @@ int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input)
 {
        unsigned long flags;
        u8 mcn_shift = 0, dev_shift = 0;
+        u32 ret;
        spin_lock_irqsave(&qe_lock, flags);
        if (cmd == QE_RESET) {
@@ -139,11 +140,13 @@ int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input)
        }
        /* wait for the QE_CR_FLG to clear */
-        while(in_be32(&qe_immr->cp.cecr) & QE_CR_FLG)
+        ret = spin_event_timeout((in_be32(&qe_immr->cp.cecr) & QE_CR_FLG) == 0,
-                cpu_relax();
+                           100, 0);
+        /* On timeout (e.g. failure), the expression will be false (ret == 0),
+           otherwise it will be true (ret == 1). */
        spin_unlock_irqrestore(&qe_lock, flags);
-        return 0;
+        return ret == 1;
 }
 EXPORT_SYMBOL(qe_issue_cmd);
diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c
index 140ea10ecb88..c02db01f736e 100644
--- a/drivers/char/bsr.c
+++ b/drivers/char/bsr.c
@@ -27,6 +27,7 @@
 #include <linux/cdev.h>
 #include <linux/list.h>
 #include <linux/mm.h>
+#include <asm/pgtable.h>
 #include <asm/io.h>
 /*
@@ -75,12 +76,13 @@ static struct class *bsr_class;
 static int bsr_major;
 enum {
-        BSR_8   = 0,
+        BSR_8    = 0,
-        BSR_16  = 1,
+        BSR_16   = 1,
-        BSR_64  = 2,
+        BSR_64   = 2,
-        BSR_128 = 3,
+        BSR_128  = 3,
-        BSR_UNKNOWN = 4,
+        BSR_4096 = 4,
-        BSR_MAX = 5,
+        BSR_UNKNOWN = 5,
+        BSR_MAX  = 6,
 };
 static unsigned bsr_types[BSR_MAX];
@@ -117,15 +119,22 @@ static int bsr_mmap(struct file *filp, struct vm_area_struct *vma)
 {
        unsigned long size   = vma->vm_end - vma->vm_start;
        struct bsr_dev *dev = filp->private_data;
+        int ret;
-        if (size > dev->bsr_len || (size & (PAGE_SIZE-1)))
-                return -EINVAL;
-        vma->vm_flags |= (VM_IO | VM_DONTEXPAND);
        vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-        if (io_remap_pfn_range(vma, vma->vm_start, dev->bsr_addr >> PAGE_SHIFT,
+        /* check for the case of a small BSR device and map one 4k page for it*/
-                               size, vma->vm_page_prot))
+        if (dev->bsr_len < PAGE_SIZE && size == PAGE_SIZE)
+                ret = remap_4k_pfn(vma, vma->vm_start, dev->bsr_addr >> 12,
+                                   vma->vm_page_prot);
+        else if (size <= dev->bsr_len)
+                ret = io_remap_pfn_range(vma, vma->vm_start,
+                                         dev->bsr_addr >> PAGE_SHIFT,
+                                         size, vma->vm_page_prot);
+        else
+                return -EINVAL;
+        if (ret)
                return -EAGAIN;
        return 0;
@@ -205,6 +214,11 @@ static int bsr_add_node(struct device_node *bn)
                cur->bsr_stride = bsr_stride[i];
                cur->bsr_dev    = MKDEV(bsr_major, i + total_bsr_devs);
+                /* if we have a bsr_len of > 4k and less then PAGE_SIZE (64k pages) */
+                /* we can only map 4k of it, so only advertise the 4k in sysfs */
+                if (cur->bsr_len > 4096 && cur->bsr_len < PAGE_SIZE)
+                        cur->bsr_len = 4096;
                switch(cur->bsr_bytes) {
                case 8:
                        cur->bsr_type = BSR_8;
@@ -218,9 +232,11 @@ static int bsr_add_node(struct device_node *bn)
                case 128:
                        cur->bsr_type = BSR_128;
                        break;
+                case 4096:
+                        cur->bsr_type = BSR_4096;
+                        break;
                default:
                        cur->bsr_type = BSR_UNKNOWN;
-                        printk(KERN_INFO "unknown BSR size %d\n",cur->bsr_bytes);
                }
                cur->bsr_num = bsr_types[cur->bsr_type];
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index 6e149f4a1fff..a0f68386c12f 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -378,6 +378,17 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
        dev->ofdev.dev.bus = &macio_bus_type;
        dev->ofdev.dev.release = macio_release_dev;
+#ifdef CONFIG_PCI
+        /* Set the DMA ops to the ones from the PCI device, this could be
+         * fishy if we didn't know that on PowerMac it's always direct ops
+         * or iommu ops that will work fine
+         */
+        dev->ofdev.dev.archdata.dma_ops =
+                chip->lbus.pdev->dev.archdata.dma_ops;
+        dev->ofdev.dev.archdata.dma_data =
+                chip->lbus.pdev->dev.archdata.dma_data;
+#endif /* CONFIG_PCI */
 #ifdef DEBUG
        printk("preparing mdev @%p, ofdev @%p, dev @%p, kobj @%p\n",
               dev, &dev->ofdev, &dev->ofdev.dev, &dev->ofdev.dev.kobj);
diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c
index a4fe7a38d9b0..3bde56bce63a 100644
--- a/drivers/watchdog/wdrtas.c
+++ b/drivers/watchdog/wdrtas.c
@@ -218,16 +218,14 @@ static void wdrtas_timer_keepalive(void)
 */
 static int wdrtas_get_temperature(void)
 {
-        long result;
+        int result;
        int temperature = 0;
-        result = rtas_call(wdrtas_token_get_sensor_state, 2, 2,
+        result = rtas_get_sensor(WDRTAS_THERMAL_SENSOR, 0, &temperature);
-                           (void *)__pa(&temperature),
-                           WDRTAS_THERMAL_SENSOR, 0);
        if (result < 0)
                printk(KERN_WARNING "wdrtas: reading the thermal sensor "
-                       "faild: %li\n", result);
+                       "failed: %i\n", result);
        else
                temperature = ((temperature * 9) / 5) + 32; /* fahrenheit */
diff --git a/scripts/dtc/.gitignore b/scripts/dtc/.gitignore
new file mode 100644
index 000000000000..095acb49a374
--- /dev/null
+++ b/scripts/dtc/.gitignore
@@ -0,0 +1,5 @@
+dtc
+dtc-lexer.lex.c
+dtc-parser.tab.c
+dtc-parser.tab.h