diff --git a/doc/driver-model/UDM-block.txt b/doc/driver-model/UDM-block.txt
deleted file mode 100644
index 0437d9b..0000000
--- a/doc/driver-model/UDM-block.txt
+++ /dev/null
@@ -1,278 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-Block device subsystem analysis
-===============================
-
-Pavel Herrmann <morpheus.ibis@gmail.com>
-2012-03-08
-
-I) Overview
------------
-
-  U-Boot currently implements several distinct APIs for block devices - some
-  drivers use the SATA API, some drivers use the IDE API, sym53c8xx and
-  AHCI use the SCSI API, mg_disk has a separate API, and systemace also has a
-  separate API. There are also MMC and USB APIs used outside of drivers/block,
-  those will be detailed in their specific documents.
-
-  Block devices are described by block_dev_desc structure, that holds, among
-  other things, the read/write/erase callbacks. Block device structures are
-  stored in any way depending on the API, but can be accessed by
-
-    block_dev_desc_t * $api_get_dev(int dev)
-
-  function, as seen in disk/part.c.
-
-  1) SATA interface
-  -----------------
-
-    The SATA interface drivers implement the following functions:
-
-      int   init_sata(int dev)
-      int   scan_sata(int dev)
-      ulong sata_read(int dev, ulong blknr, ulong blkcnt, void *buffer)
-      ulong sata_write(int dev, ulong blknr, ulong blkcnt, const void *buffer)
-
-    Block devices are kept in sata_dev_desc[], which is prefilled with values
-    common to all SATA devices in cmd_sata.c, and then modified in init_sata
-    function in the drivers. Callbacks of the block device use SATA API
-    directly. The sata_get_dev function is defined in cmd_sata.c.
-
-  2) SCSI interface
-  -----------------
-
-    The SCSI interface drivers implement the following functions:
-
-      void scsi_print_error(ccb *pccb)
-      int  scsi_exec(ccb *pccb)
-      void scsi_bus_reset(void)
-      void scsi_low_level_init(int busdevfunc)
-
-    The SCSI API works through the scsi_exec function, the actual operation
-    requested is found in the ccb structure.
-
-    Block devices are kept in scsi_dev_desc[], which lives only in cmd_scsi.c.
-    Callbacks of the block device use functions from cmd_scsi.c, which in turn
-    call scsi_exec of the controller. The scsi_get_dev function is also defined
-    in cmd_scsi.c.
-
-  3) mg_disk interface
-  --------------------
-
-    The mg_disk interface drivers implement the following functions:
-
-      struct mg_drv_data* mg_get_drv_data (void)
-      uint   mg_disk_init (void)
-      uint   mg_disk_read (u32 addr, u8 *buff, u32 len)
-      uint   mg_disk_write(u32 addr, u8 *buff, u32 len)
-      uint   mg_disk_write_sects(void *buff, u32 sect_num, u32 sect_cnt)
-      uint   mg_disk_read_sects(void *buff, u32 sect_num, u32 sect_cnt)
-
-    The mg_get_drv_data function is to be overridden per-board, but there are no
-    board in-tree that do this.
-
-    Only one driver for this API exists, and it only supports one block device.
-    Callbacks for this device are implemented in mg_disk.c and call the mg_disk
-    API. The mg_disk_get_dev function is defined in mg_disk.c and ignores the
-    device number, always returning the same device.
-
-  4) systemace interface
-  ----------------------
-
-    The systemace interface does not define any driver API, and has no command
-    itself. The single defined function is systemace_get_devs() from
-    systemace.c, which returns a single static structure for the only supported
-    block device. Callbacks for this device are also implemented in systemace.c.
-
-  5) IDE interface
-  ----------------
-
-    The IDE interface drivers implement the following functions, but only if
-    CONFIG_IDE_AHB is set:
-
-      uchar ide_read_register(int dev, unsigned int port);
-      void  ide_write_register(int dev, unsigned int port, unsigned char val);
-      void  ide_read_data(int dev, ulong *sect_buf, int words);
-      void  ide_write_data(int dev, const ulong *sect_buf, int words);
-
-    The first two functions are called from ide_inb()/ide_outb(), and will
-    default to direct memory access if CONFIG_IDE_AHB is not set, or
-    ide_inb()/ide_outb() functions will get overridden by the board altogether.
-
-    The second two functions are called from input_data()/output_data()
-    functions, and also default to direct memory access, but cannot be
-    overridden by the board.
-
-    One function shared by IDE drivers (but not defined in ide.h) is
-      int ide_preinit(void)
-    This function gets called from ide_init in cmd_ide.c if CONFIG_IDE_PREINIT
-    is defined, and will do the driver-specific initialization of the device.
-
-    Block devices are kept in ide_dev_desc[], which is filled in cmd_ide.c.
-    Callbacks of the block device are defined in cmd_ide.c, and use the
-    ide_inb()/ide_outb()/input_data()/output_data() functions mentioned above.
-    The ide_get_dev function is defined in cmd_ide.c.
-
-II) Approach
-------------
-
-  A new block controller core and an associated API will be created to mimic the
-  current SATA API, its drivers will have the following ops:
-
-  struct block_ctrl_ops {
-    int scan(instance *i);
-    int reset(instance *i, int port);
-    lbaint_t read(instance *i, int port, lbaint_t start, lbatin_t length,
-		  void *buffer);
-    lbaint_t write(instance *i, int port, lbaint_t start, lbatin_t length,
-		   void*buffer);
-  }
-
-  The current sata_init() function will be changed into the driver probe()
-  function. The read() and write() functions should never be called directly,
-  instead they should be called by block device driver for disks.
-
-  Other block APIs would either be transformed into this API, or be kept as
-  legacy for old drivers, or be dropped altogether.
-
-  Legacy driver APIs will each have its own driver core that will contain the
-  shared logic, which is currently located mostly in cmd_* files. Callbacks for
-  block device drivers will then probably be implemented as a part of the core
-  logic, and will use the driver ops (which will copy current state of
-  respective APIs) to do the work.
-
-  All drivers will be cleaned up, most ifdefs should be converted into
-  platform_data, to enable support for multiple devices with different settings.
-
-  A new block device core will also be created, and will keep track of all
-  block devices on all interfaces.
-
-  Current block_dev_desc structure will be changed to fit the driver model, all
-  identification and configuration will be placed in private data, and
-  a single accessor and modifier will be defined, to accommodate the need for
-  different sets of options for different interfaces, while keeping the
-  structure small. The new block device drivers will have the following ops
-  structure (lbaint_t is either 32bit or 64bit unsigned, depending on
-  CONFIG_LBA48):
-
-  struct blockdev_ops {
-    lbaint_t (*block_read)(struct instance *i, lbaint_t start, lbaint_t blkcnt,
-			   void *buffer);
-    lbaint_t (*block_write)(struct instance *i, lbaint_t start, lbaint_t blkcnt,
-			    void *buffer);
-    lbaint_t (*block_erase)(struct instance *i, lbaint_t start, lbaint_t blkcnt
-			    );
-    int	     (*get_option)(struct instance *i, enum blockdev_option_code op,
-			   struct option *res);
-    int	     (*set_option)(struct instance *i, enum blockdev_option_code op,
-			   struct option *val);
-  }
-
-  struct option {
-    uint32_t flags
-    union data {
-      uint64_t data_u;
-      char*    data_s;
-      void*    data_p;
-    }
-  }
-
-  enum blockdev_option_code {
-    BLKD_OPT_IFTYPE=0,
-    BLKD_OPT_TYPE,
-    BLKD_OPT_BLOCKSIZE,
-    BLKD_OPT_BLOCKCOUNT,
-    BLKD_OPT_REMOVABLE,
-    BLKD_OPT_LBA48,
-    BLKD_OPT_VENDOR,
-    BLKD_OPT_PRODICT,
-    BLKD_OPT_REVISION,
-    BLKD_OPT_SCSILUN,
-    BLKD_OPT_SCSITARGET,
-    BLKD_OPT_OFFSET
-  }
-
-  Flags in option above will contain the type of returned data (which should be
-  checked against what is expected, even though the option requested should
-  specify it), and a flag to indicate whether the returned pointer needs to be
-  free()'d.
-
-  The block device core will contain the logic now located in disk/part.c and
-  related files, and will be used to forward requests to block devices. The API
-  for the block device core will copy the ops of a block device (with a string
-  identifier instead of instance pointer). This means that partitions will also
-  be handled by the block device core, and exported as block devices, making
-  them transparent to the rest of the code.
-
-  Sadly, this will change how file systems can access the devices, and thus will
-  affect a lot of places. However, these changes should be localized and easy to
-  implement.
-
-  AHCI driver will be rewritten to fit the new unified block controller API,
-  making SCSI API easy to merge with sym53c8xx, or remove it once the device
-  driver has died.
-
-  Optionally, IDE core may be changed into one driver with unified block
-  controller API, as most of it is already in one place and device drivers are
-  just sets of hooks. Additionally, mg_disk driver is unused and may be removed
-  in near future.
-
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  ahci.c
-  ------
-    SCSI API, will be rewritten for a different API.
-
-  ata_piix.c
-  ----------
-    SATA API, easy to port.
-
-  fsl_sata.c
-  ----------
-    SATA API, few CONFIG macros, easy to port.
-
-  ftide020.c
-  ----------
-    IDE API, defines CONFIG_IDE_AHB and ide_preinit hook functions.
-
-  mg_disk.c
-  ---------
-    Single driver with mg_disk API, not much to change, easy to port.
-
-  mvsata_ide.c
-  ------------
-    IDE API, only defines ide_preinit hook function.
-
-  mxc_ata.c
-  ---------
-    IDE API, only defines ide_preinit hook function.
-
-  pata_bfin.c
-  -----------
-    SATA API, easy to port.
-
-  sata_dwc.c
-  ----------
-    SATA API, easy to port.
-
-  sata_sil3114.c
-  --------------
-    SATA API, easy to port.
-
-  sata_sil.c
-  ----------
-    SATA API, easy to port.
-
-  sil680.c
-  --------
-    IDE API, only defines ide_preinit hook function.
-
-  sym53c8xx.c
-  -----------
-    SCSI API, may be merged with code from cmd_scsi.
-
-  systemace.c
-  -----------
-    Single driver with systemace API, not much to change, easy to port.
diff --git a/doc/driver-model/UDM-cores.txt b/doc/driver-model/UDM-cores.txt
deleted file mode 100644
index 6032333..0000000
--- a/doc/driver-model/UDM-cores.txt
+++ /dev/null
@@ -1,126 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-Driver cores API document
-=========================
-
-Pavel Herrmann <morpheus.ibis@gmail.com>
-
-1) Overview
------------
-  Driver cores will be used as a wrapper for devices of the same type, and as
-  an abstraction for device driver APIs. For each driver API (which roughly
-  correspond to device types), there will be one driver core. Each driver core
-  will implement three APIs - a driver API (which will be the same as API of
-  drivers the core wraps around), a core API (which will be implemented by all
-  cores) and a command API (core-specific API which will be exposed to
-  commands).
-
-  A) Command API
-    The command API will provide access to shared functionality for a specific
-    device, which is currently located mostly in commands. Commands will be
-    rewritten to be more lightweight by using this API. As this API will be
-    different for each core, it is out of scope of this document.
-
-  B) Driver API
-    The driver API will act as a wrapper around actual device drivers,
-    providing a single entrypoint for device access. All functions in this API
-    have an instance* argument (probably called "this" or "i"), which will be
-    examined by the core, and a correct function for the specified driver will
-    get called.
-
-    If the core gets called with a group instance pointer (as discussed in
-    design), it will automatically select the instance that is associated
-    with this core, and use it as target of the call. if the group contains
-    multiple instances of a single type, the caller must explicitly use an
-    accessor to select the correct instance.
-
-    This accessor will look like:
-      struct instance *get_instance_from_group(struct instance *group, int i)
-
-    When called with a non-group instance, it will simply return the instance.
-
-  C) Core API
-    The core API will be implemented by all cores, and will provide
-    functionality for getting driver instances from non-driver code. This API
-    will consist of following functions:
-
-      int get_count(struct instance *core);
-      struct instance* get_instance(struct instance *core, int index);
-      int init(struct instance *core);
-      int bind(struct instance *core, struct instance *dev, void *ops,
-	       void *hint);
-      int unbind(struct instance *core, instance *dev);
-      int replace(struct instance *core, struct_instance *new_dev,
-		  struct instance *old_dev);
-      int destroy(struct instance *core);
-      int reloc(struct instance *new_core, struct instance *old_core);
-
-      The 'hint' parameter of bind() serves for additional data a driver can
-      pass to the core, to help it create the correct internal state for this
-      instance. the replace() function will get called during instance
-      relocation, and will replace the old instance with the new one, keeping
-      the internal state untouched.
-
-
-2) Lifetime of a driver core
-----------------------------
-  Driver cores will be initialized at runtime, to limit memory footprint in
-  early-init stage, when we have to fit into ~1KB of memory. All active cores
-  will be stored in a tree structure (referenced as "Core tree") in global data,
-  which provides good tradeoff between size and access time.
-  Every core will have a number constant associated with it, which will be used
-  to find the instance in Core tree, and to refer to the core in all calls
-  working with the Core tree.
-  The Core Tree should be implemented using B-tree (or a similar structure)
-  to guarantee acceptable time overhead in all cases.
-
-  Code for working with the core (i2c in this example) follows:
-
-    core_init(CORE_I2C);
-      This will check whether we already have a i2c core, and if not it creates
-      a new instance and adds it into the Core tree. This will not be exported,
-      all code should depend on get_core_instance to init the core when
-      necessary.
-
-    get_core_instance(CORE_I2C);
-      This is an accessor into the Core tree, which will return the instance
-      of i2c core, creating it if necessary
-
-    core_bind(CORE_I2C, instance, driver_ops);
-      This will get called in bind() function of a driver, and will add the
-      instance into cores internal list of devices. If the core is not found, it
-      will get created.
-
-    driver_activate(instance *inst);
-      This call will recursively activate all devices necessary for using the
-      specified device. the code could be simplified as:
-	{
-	if (is_activated(inst))
-	  return;
-	driver_activate(inst->bus);
-	get_driver(inst)->probe(inst);
-	}
-
-      The case with multiple parents will need to be handled here as well.
-      get_driver is an accessor to available drivers, which will get struct
-      driver based on a name in the instance.
-
-    i2c_write(instance *inst, ...);
-      An actual call to some method of the driver. This code will look like:
-	{
-	driver_activate(inst);
-	struct instance *core = get_core_instance(CORE_I2C);
-	device_ops = get_ops(inst);
-	device_ops->write(...);
-	}
-
-      get_ops will not be an exported function, it will be internal and specific
-      to the core, as it needs to know how are the ops stored, and what type
-      they are.
-
-  Please note that above examples represent the algorithm, not the actual code,
-  as they are missing checks for validity of return values.
-
-  core_init() function will get called the first time the core is requested,
-  either by core_link() or core_get_instance(). This way, the cores will get
-  created only when they are necessary, which will reduce our memory footprint.
diff --git a/doc/driver-model/UDM-design.txt b/doc/driver-model/UDM-design.txt
deleted file mode 100644
index 9f03bba..0000000
--- a/doc/driver-model/UDM-design.txt
+++ /dev/null
@@ -1,315 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-Design document
-===============
-Marek Vasut <marek.vasut@gmail.com>
-Pavel Herrmann <morpheus.ibis@gmail.com>
-2012-05-17
-
-I) The modular concept
-----------------------
-
-The driver core design is done with modularity in mind. The long-term plan is to
-extend this modularity to allow loading not only drivers, but various other
-objects into U-Boot at runtime -- like commands, support for other boards etc.
-
-II) Driver core initialization stages
--------------------------------------
-
-The drivers have to be initialized in two stages, since the U-Boot bootloader
-runs in two stages itself. The first stage is the one which is executed before
-the bootloader itself is relocated. The second stage then happens after
-relocation.
-
-  1) First stage
-  --------------
-
-  The first stage runs after the bootloader did very basic hardware init. This
-  means the stack pointer was configured, caches disabled and that's about it.
-  The problem with this part is the memory management isn't running at all. To
-  make things even worse, at this point, the RAM is still likely uninitialized
-  and therefore unavailable.
-
-  2) Second stage
-  ---------------
-
-  At this stage, the bootloader has initialized RAM and is running from it's
-  final location. Dynamic memory allocations are working at this point. Most of
-  the driver initialization is executed here.
-
-III) The drivers
-----------------
-
-  1) The structure of a driver
-  ----------------------------
-
-  The driver will contain a structure located in a separate section, which
-  will allow linker to create a list of compiled-in drivers at compile time.
-  Let's call this list "driver_list".
-
-  struct driver __attribute__((section(driver_list))) {
-    /* The name of the driver */
-    char		name[STATIC_CONFIG_DRIVER_NAME_LENGTH];
-
-    /*
-     * This function should connect this driver with cores it depends on and
-     * with other drivers, likely bus drivers
-     */
-    int			(*bind)(struct instance *i);
-
-    /* This function actually initializes the hardware. */
-    int			(*probe)(struct instance *i);
-
-    /*
-     * The function of the driver called when U-Boot finished relocation.
-     * This is particularly important to eg. move pointers to DMA buffers
-     * and such from the location before relocation to their final location.
-     */
-    int			(*reloc)(struct instance *i);
-
-    /*
-     * This is called when the driver is shuting down, to deinitialize the
-     * hardware.
-     */
-    int			(*remove)(struct instance *i);
-
-    /* This is called to remove the driver from the driver tree */
-    int			(*unbind)(struct instance *i);
-
-    /* This is a list of cores this driver depends on */
-    struct driver	*cores[];
-  };
-
-  The cores[] array in here is very important. It allows u-boot to figure out,
-  in compile-time, which possible cores can be activated at runtime. Therefore
-  if there are cores that won't be ever activated, GCC LTO might remove them
-  from the final binary. Actually, this information might be used to drive build
-  of the cores.
-
-  FIXME: Should *cores[] be really struct driver, pointing to drivers that
-	 represent the cores? Shouldn't it be core instance pointer?
-
-  2) Instantiation of a driver
-  ----------------------------
-
-  The driver is instantiated by calling:
-
-    driver_bind(struct instance *bus, const struct driver_info *di)
-
-  The "struct instance *bus" is a pointer to a bus with which this driver should
-  be registered with. The "root" bus pointer is supplied to the board init
-  functions.
-
-  FIXME: We need some functions that will return list of busses of certain type
-	 registered with the system so the user can find proper instance even if
-	 he has no bus pointer (this will come handy if the user isn't
-	 registering the driver from board init function, but somewhere else).
-
-  The "const struct driver_info *di" pointer points to a structure defining the
-  driver to be registered. The structure is defined as follows:
-
-  struct driver_info {
-	char			name[STATIC_CONFIG_DRIVER_NAME_LENGTH];
-	void			*platform_data;
-  }
-
-  The instantiation of a driver by calling driver_bind() creates an instance
-  of the driver by allocating "struct driver_instance". Note that only struct
-  instance is passed to the driver. The wrapping struct driver_instance is there
-  for purposes of the driver core:
-
-  struct driver_instance {
-    uint32_t          flags;
-    struct instance   i;
-  };
-
-  struct instance {
-	/* Pointer to a driver information passed by driver_register() */
-	const struct driver_info	*info;
-	/* Pointer to a bus this driver is bound with */
-	struct instance			*bus;
-	/* Pointer to this driver's own private data */
-	void				*private_data;
-	/* Pointer to the first block of successor nodes (optional) */
-	struct successor_block 		*succ;
-  }
-
-  The instantiation of a driver does not mean the hardware is initialized. The
-  driver_bind() call only creates the instance of the driver, fills in the "bus"
-  pointer and calls the drivers' .bind() function. The .bind() function of the
-  driver should hook the driver with the remaining cores and/or drivers it
-  depends on.
-
-  It's important to note here, that in case the driver instance has multiple
-  parents, such parent can be connected with this instance by calling:
-
-    driver_link(struct instance *parent, struct instance *dev);
-
-  This will connect the other parent driver with the newly instantiated driver.
-  Note that this must be called after driver_bind() and before driver_acticate()
-  (driver_activate() will be explained below). To allow struct instance to have
-  multiple parent pointer, the struct instance *bus will utilize it's last bit
-  to indicate if this is a pointer to struct instance or to an array if
-  instances, struct successor block. The approach is similar as the approach to
-  *succ in struct instance, described in the following paragraph.
-
-  The last pointer of the struct instance, the pointer to successor nodes, is
-  used only in case of a bus driver. Otherwise the pointer contains NULL value.
-  The last bit of this field indicates if this is a bus having a single child
-  node (so the last bit is 0) or if this bus has multiple child nodes (the last
-  bit is 1). In the former case, the driver core should clear the last bit and
-  this pointer points directly to the child node. In the later case of a bus
-  driver, the pointer points to an instance of structure:
-
-  struct successor_block {
-    /* Array of pointers to instances of devices attached to this bus */
-    struct instance                     *dev[BLOCKING_FACTOR];
-    /* Pointer to next block of successors */
-    struct successor_block              *next;
-  }
-
-  Some of the *dev[] array members might be NULL in case there are no more
-  devices attached. The *next is NULL in case the list of attached devices
-  doesn't continue anymore. The BLOCKING_FACTOR is used to allocate multiple
-  slots for successor devices at once to avoid fragmentation of memory.
-
-  3) The bind() function of a driver
-  ----------------------------------
-
-  The bind function of a driver connects the driver with various cores the
-  driver provides functions for. The driver model related part will look like
-  the following example for a bus driver:
-
-  int driver_bind(struct instance *in)
-  {
-	...
-	core_bind(&core_i2c_static_instance, in, i2c_bus_funcs);
-	...
-  }
-
-  FIXME: What if we need to run-time determine, depending on some hardware
-	 register, what kind of i2c_bus_funcs to pass?
-
-  This makes the i2c core aware of a new bus. The i2c_bus_funcs is a constant
-  structure of functions any i2c bus driver must provide to work. This will
-  allow the i2c command operate with the bus. The core_i2c_static_instance is
-  the pointer to the instance of a core this driver provides function to.
-
-  FIXME: Maybe replace "core-i2c" with CORE_I2C global pointer to an instance of
-	 the core?
-
-  4) The instantiation of a core driver
-  -------------------------------------
-
-  The core driver is special in the way that it's single-instance driver. It is
-  always present in the system, though it might not be activated. The fact that
-  it's single instance allows it to be instantiated at compile time.
-
-  Therefore, all possible structures of this driver can be in read-only memory,
-  especially struct driver and struct driver_instance. But the successor list,
-  which needs special treatment.
-
-  To solve the problem with a successor list and the core driver flags, a new
-  entry in struct gd (global data) will be introduced. This entry will point to
-  runtime allocated array of struct driver_instance. It will be possible to
-  allocate the exact amount of struct driver_instance necessary, as the number
-  of cores that might be activated will be known at compile time. The cores will
-  then behave like any usual driver.
-
-  Pointers to the struct instance of cores can be computed at compile time,
-  therefore allowing the resulting u-boot binary to save some overhead.
-
-  5) The probe() function of a driver
-  -----------------------------------
-
-  The probe function of a driver allocates necessary resources and does required
-  initialization of the hardware itself. This is usually called only when the
-  driver is needed, as a part of the defered probe mechanism.
-
-  The driver core should implement a function called
-
-    int driver_activate(struct instance *in);
-
-  which should call the .probe() function of the driver and then configure the
-  state of the driver instance to "ACTIVATED". This state of a driver instance
-  should be stored in a wrap-around structure for the structure instance, the
-  struct driver_instance.
-
-  6) The command side interface to a driver
-  -----------------------------------------
-
-  The U-Boot command shall communicate only with the specific driver core. The
-  driver core in turn exports necessary API towards the command.
-
-  7) Demonstration imaginary board
-  --------------------------------
-
-  Consider the following computer:
-
-  *
-  |
-  +-- System power management logic
-  |
-  +-- CPU clock controlling logc
-  |
-  +-- NAND controller
-  |   |
-  |   +-- NAND flash chip
-  |
-  +-- 128MB of DDR DRAM
-  |
-  +-- I2C bus #0
-  |   |
-  |   +-- RTC
-  |   |
-  |   +-- EEPROM #0
-  |   |
-  |   +-- EEPROM #1
-  |
-  +-- USB host-only IP core
-  |   |
-  |   +-- USB storage device
-  |
-  +-- USB OTG-capable IP core
-  |   |
-  |   +-- connection to the host PC
-  |
-  +-- GPIO
-  |   |
-  |   +-- User LED #0
-  |   |
-  |   +-- User LED #1
-  |
-  +-- UART0
-  |
-  +-- UART1
-  |
-  +-- Ethernet controller #0
-  |
-  +-- Ethernet controller #1
-  |
-  +-- Audio codec
-  |
-  +-- PCI bridge
-  |   |
-  |   +-- Ethernet controller #2
-  |   |
-  |   +-- SPI host card
-  |   |   |
-  |   |   +-- Audio amplifier (must be operational before codec)
-  |   |
-  |   +-- GPIO host card
-  |       |
-  |       +-- User LED #2
-  |
-  +-- LCD controller
-  |
-  +-- PWM controller (must be enabled after LCD controller)
-  |
-  +-- SPI host controller
-  |   |
-  |   +-- SD/MMC connected via SPI
-  |   |
-  |   +-- SPI flash
-  |
-  +-- CPLD/FPGA with stored configuration of the board
diff --git a/doc/driver-model/UDM-fpga.txt b/doc/driver-model/UDM-fpga.txt
deleted file mode 100644
index 4f9df94..0000000
--- a/doc/driver-model/UDM-fpga.txt
+++ /dev/null
@@ -1,115 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-I/O system analysis
-===================
-Marek Vasut <marek.vasut@gmail.com>
-2012-02-21
-
-I) Overview
------------
-
-The current FPGA implementation is handled by command "fpga". This command in
-turn calls the following functions:
-
-fpga_info()
-fpga_load()
-fpga_dump()
-
-These functions are implemented by what appears to be FPGA multiplexer, located
-in drivers/fpga/fpga.c . This code determines which device to operate with
-depending on the device ID.
-
-The fpga_info() function is multiplexer of the functions providing information
-about the particular FPGA device. These functions are implemented in the drivers
-for the particular FPGA device:
-
-xilinx_info()
-altera_info()
-lattice_info()
-
-Similar approach is used for fpga_load(), which multiplexes "xilinx_load()",
-"altera_load()" and "lattice_load()" and is used to load firmware into the FPGA
-device.
-
-The fpga_dump() function, which prints the contents of the FPGA device, is no
-different either, by multiplexing "xilinx_dump()", "altera_dump()" and
-"lattice_dump()" functions.
-
-Finally, each new FPGA device is registered by calling "fpga_add()" function.
-This function takes two arguments, the second one being particularly important,
-because it's basically what will become platform_data. Currently, it's data that
-are passed to the driver from the board/platform code.
-
-II) Approach
-------------
-
-The path to conversion of the FPGA subsystem will be very straightforward, since
-the FPGA subsystem is already quite dynamic. Multiple things will need to be
-modified though.
-
-First is the registration of the new FPGA device towards the FPGA core. This
-will be achieved by calling:
-
-  fpga_device_register(struct instance *i, const struct fpga_ops *ops);
-
-The particularly interesting part is the struct fpga_ops, which contains
-operations supported by the FPGA device. These are basically the already used
-calls in the current implementation:
-
-struct fpga_ops {
-  int info(struct instance *i);
-  int load(struct instance *i, const char *buf, size_t size);
-  int dump(struct instance *i, const char *buf, size_t size);
-}
-
-The other piece that'll have to be modified is how the devices are tracked.
-It'll be necessary to introduce a linked list of devices within the FPGA core
-instead of tracking them by ID number.
-
-Next, the "Xilinx_desc", "Lattice_desc" and "Altera_desc" structures will have
-to be moved to driver's private_data. Finally, structures passed from the board
-and/or platform files, like "Xilinx_Virtex2_Slave_SelectMap_fns" would be passed
-via platform_data to the driver.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  1) Altera driver
-  ----------------
-  The driver is realized using the following files:
-
-    drivers/fpga/altera.c
-    drivers/fpga/ACEX1K.c
-    drivers/fpga/cyclon2.c
-    drivers/fpga/stratixII.c
-
-  All of the sub-drivers implement basically the same info-load-dump interface
-  and there's no expected problem during the conversion. The driver itself will
-  be realised by altera.c and all the sub-drivers will be linked in. The
-  distinction will be done by passing different platform data.
-
-  2) Lattice driver
-  -----------------
-  The driver is realized using the following files:
-
-    drivers/fpga/lattice.c
-    drivers/fpga/ivm_core.c
-
-  This driver also implements the standard interface, but to realise the
-  operations with the FPGA device, uses functions from "ivm_core.c" file. This
-  file implements the main communications logic and has to be linked in together
-  with "lattice.c". No problem converting is expected here.
-
-  3) Xilinx driver
-  ----------------
-  The driver is realized using the following files:
-
-    drivers/fpga/xilinx.c
-    drivers/fpga/spartan2.c
-    drivers/fpga/spartan3.c
-    drivers/fpga/virtex2.c
-
-  This set of sub-drivers is special by defining a big set of macros in
-  "include/spartan3.h" and similar files. These macros would need to be either
-  rewritten or replaced. Otherwise, there are no problems expected during the
-  conversion process.
diff --git a/doc/driver-model/UDM-gpio.txt b/doc/driver-model/UDM-gpio.txt
deleted file mode 100644
index 585d458..0000000
--- a/doc/driver-model/UDM-gpio.txt
+++ /dev/null
@@ -1,106 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-GPIO analysis
-=============
-Viktor Krivak <viktor.krivak@gmail.com>
-2012-02-24
-
-I) Overview
------------
-
-  At this moment U-Boot provides standard API that consists of 7 functions.
-
-    int  gpio_request(unsigned gpio, const char *label)
-    int  gpio_free(unsigned gpio)
-    int  gpio_direction_input(unsigned gpio)
-    int  gpio_direction_output(unsigned gpio, int value)
-    int  gpio_get_value(unsigned gpio)
-    void gpio_set_value(unsigned gpio, int value)
-
-  Methods "gpio_request()" and "gpio_free()" are used for claiming and releasing
-  GPIOs. First one should check if the desired pin exists and if the pin wasn't
-  requested already elsewhere. The method also has a label argument that can be
-  used for debug purposes. The label argument should be copied into the internal
-  memory, but only if the DEBUG macro is set. The "gpio_free()" is the exact
-  opposite. It releases the particular pin. Other methods are used for setting
-  input or output direction and obtaining or setting values of the pins.
-
-II) Approach
-------------
-
-  1) Request and free GPIO
-  ------------------------
-
-    The "gpio_request()" implementation is basically the same for all boards.
-    The function checks if the particular GPIO is correct and checks if the
-    GPIO pin is still free. If the conditions are met, the method marks the
-    GPIO claimed in it's internal structure. If macro DEBUG is defined, the
-    function also copies the label argument to the structure. If the pin is
-    already locked, the function returns -1 and if DEBUG is defined, certain
-    debug output is generated, including the contents of the label argument.
-    The "gpio_free()" function releases the lock and eventually deallocates
-    data used by the copied label argument.
-
-  2) Internal data
-  ----------------
-
-  Internal data are driver specific. They have to contain some mechanism to
-  realise the locking though. This can be done for example using a bit field.
-
-  3) Operations provided by the driver
-  ------------------------------------
-
-  The driver operations basically meet API that is already defined and used.
-  Except for "gpio_request()" and "gpio_free()", all methods can be converted in
-  a simple manner. The driver provides the following structure:
-
-  struct gpio_driver_ops {
-    int  (*gpio_request)(struct instance *i, unsigned gpio,
-			 const char *label);
-    int  (*gpio_free)(struct instance *i, unsigned gpio);
-    int  (*gpio_direction_input)(struct instance *i, unsigned gpio);
-    int  (*gpio_direction_output)(struct instance *i, unsigned gpio,
-				  int value);
-    int  (*gpio_get_value)(struct instance *i, unsigned gpio);
-    void (*gpio_set_value)(struct instance *i, unsigned gpio, int value);
-  }
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  altera_pio.c
-  ------------
-  Meets standard API. Implements gpio_request() properly. Simple conversion
-  possible.
-
-  at91_gpio.c
-  -----------
-  Don't meet standard API. Need some other methods to implement.
-
-  da8xx_gpio.c
-  ------------
-  Meets standard API. Implements gpio_request() properly. Simple conversion
-  possible.
-
-  kw_gpio.c
-  ---------
-  Doesn't meet standard API. Needs some other methods to implement and move some
-  methods to another file.
-
-  mpc83xx_gpio.c
-  --------------
-  Meets standard API. Doesn't implement gpio_request() properly (only checks
-  if the pin is valid). Simple conversion possible.
-
-  mvgpio.c
-  --------
-  Meets standard API. Doesn't implement gpio_request() properly (only checks
-  if the pin is valid). Simple conversion possible.
-
-  mvgpio.h
-  --------
-  Wrong placement. Will be moved to another location.
-
-  mvmfp.c
-  -------
-  Wrong placement. Will be moved to another location.
diff --git a/doc/driver-model/UDM-hwmon.txt b/doc/driver-model/UDM-hwmon.txt
deleted file mode 100644
index 03a96a0..0000000
--- a/doc/driver-model/UDM-hwmon.txt
+++ /dev/null
@@ -1,118 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-Hwmon device subsystem analysis
-===============================
-
-Tomas Hlavacek <tmshlvck@gmail.com>
-2012-03-02
-
-I) Overview
------------
-
-U-Boot currently implements one API for HW monitoring devices. The
-interface is defined in include/dtt.h and comprises of functions:
-
-    void dtt_init(void);
-    int dtt_init_one(int);
-    int dtt_read(int sensor, int reg);
-    int dtt_write(int sensor, int reg, int val);
-    int dtt_get_temp(int sensor);
-
-The functions are implemented by a proper device driver in drivers/hwmon
-directory and the driver to be compiled in is selected in a Makefile.
-Drivers are mutually exclusive.
-
-Drivers depends on I2O code and naturally on board specific data. There are
-few ad-hoc constants put in dtt.h file and driver headers and code. This
-has to be consolidated into board specific data or driver headers if those
-constants makes sense globally.
-
-
-II) Approach
-------------
-
-  1) New API
-  ----------
-  In the UDM each hwmon driver would register itself by a function
-
-    int hwmon_device_register(struct instance *i,
-			      struct hwmon_device_ops *o);
-
-  The structure being defined as follows:
-
-    struct hwmon_device_ops {
-	int  (*read)(struct instance *i, int sensor, int reg);
-	int  (*write)(struct instance *i, int sensor, int reg,
-		      int val);
-	int  (*get_temp)(struct instance *i, int sensor);
-    };
-
-
-  2) Conversion thougths
-  ----------------------
-  U-Boot hwmon drivers exports virtually the same functions (with exceptions)
-  and we are considering low number of drivers and code anyway. The interface
-  is already similar and unified by the interface defined in dtt.h.
-  Current initialization functions dtt_init() and dtt_init_one() will be
-  converted into probe() and hwmon_device_register(), so the funcionality will
-  be kept in more proper places. Besides implementing core registration and
-  initialization we need to do code cleanup, especially separate
-  driver-specific and HW specific constants.
-
-  3) Special consideration due to early initialization
-  ----------------------------------------------------
-  The dtt_init() function call is used during early initialization in
-  board/gdsys/405ex/io64.c for starting up fans. The dtt code is perfectly
-  usable in the early stage because it uses only local variables and no heap
-  memory is required at this level. However the underlying code of I2C has to
-  keep the same properties with regard to possibility of running in early
-  initialization stage.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  drivers/hwmon/lm81.c
-  --------------------
-  The driver is standard dtt. Simple conversion is possible.
-
-
-  drivers/hwmon/ds1722.c
-  ----------------------
-  The driver is not standard dtt, but interface is similar to dtt.
-  The interface has to be changed in order to comply to above mentioned
-  specification.
-
-
-  drivers/hwmon/ds1775.c
-  ----------------------
-  The driver is standard dtt. Simple conversion is possible.
-
-
-  drivers/hwmon/lm73.c
-  --------------------
-  The driver is standard dtt. Simple conversion is possible.
-
-
-  drivers/hwmon/lm63.c
-  --------------------
-  The driver is standard dtt. Simple conversion is possible.
-
-
-  drivers/hwmon/adt7460.c
-  -----------------------
-  The driver is standard dtt. Simple conversion is possible.
-
-
-  drivers/hwmon/lm75.c
-  --------------------
-  The driver is standard dtt. Simple conversion is possible.
-
-
-  drivers/hwmon/ds1621.c
-  ----------------------
-  The driver is standard dtt. Simple conversion is possible.
-
-
-  drivers/hwmon/adm1021.c
-  -----------------------
-  The driver is standard dtt. Simple conversion is possible.
diff --git a/doc/driver-model/UDM-keyboard.txt b/doc/driver-model/UDM-keyboard.txt
deleted file mode 100644
index 5babfc5..0000000
--- a/doc/driver-model/UDM-keyboard.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-Keyboard input analysis
-=======================
-Marek Vasut <marek.vasut@gmail.com>
-2012-02-20
-
-I) Overview
------------
-
-The keyboard drivers are most often registered with STDIO subsystem. There are
-components of the keyboard drivers though, which operate in severe ad-hoc
-manner, often being related to interrupt-driven keypress reception. This
-components will require the most sanitization of all parts of keyboard input
-subsystem.
-
-Otherwise, the keyboard is no different from other standard input but with the
-necessity to decode scancodes. These are decoded using tables provided by
-keyboard drivers. These tables are often driver specific.
-
-II) Approach
-------------
-
-The most problematic part is the interrupt driven keypress reception. For this,
-the buffers that are currently shared throughout the whole U-Boot would need to
-be converted into driver's private data.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  board/mpl/common/kbd.c
-  ----------------------
-  This driver is a classic STDIO driver, no problem with conversion is expected.
-  Only necessary change will be to move this driver to a proper location.
-
-  board/rbc823/kbd.c
-  ------------------
-  This driver is a classic STDIO driver, no problem with conversion is expected.
-  Only necessary change will be to move this driver to a proper location.
-
-  drivers/input/keyboard.c
-  ------------------------
-  This driver is special in many ways. Firstly because this is a universal stub
-  driver for converting scancodes from i8042 and the likes. Secondly because the
-  buffer is filled by various other ad-hoc implementations of keyboard input by
-  using this buffer as an extern. This will need to be fixed by allowing drivers
-  to pass certain routines to this driver via platform data.
diff --git a/doc/driver-model/UDM-mmc.txt b/doc/driver-model/UDM-mmc.txt
deleted file mode 100644
index 97f83a7..0000000
--- a/doc/driver-model/UDM-mmc.txt
+++ /dev/null
@@ -1,319 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-MMC system analysis
-===================
-Marek Vasut <marek.vasut@gmail.com>
-2012-02-25
-
-I) Overview
------------
-
-The MMC subsystem is already quite dynamic in it's nature. It's only necessary
-to flip the subsystem to properly defined API.
-
-The probing process of MMC drivers start by calling "mmc_initialize()",
-implemented by MMC framework, from the architecture initialization file. The
-"mmc_initialize()" function in turn calls "board_mmc_init()" function and if
-this doesn't succeed, "cpu_mmc_init()" function is called. It is important to
-note that both of the "*_mmc_init()" functions have weak aliases to functions
-which automatically fail.
-
-Both of the "*_mmc_init()" functions though serve only one purpose. To call
-driver specific probe function, which in turn actually registers the driver with
-MMC subsystem. Each of the driver specific probe functions is currently done in
-very ad-hoc manner.
-
-The registration with the MMC subsystem is done by calling "mmc_register()",
-whose argument is a runtime configured structure of information about the MMC
-driver. Currently, the information structure is intermixed with driver's internal
-data. The description of the structure follows:
-
-struct mmc {
- /*
-  * API: Allows this driver to be a member of the linked list of all MMC drivers
-  *      registered with MMC subsystem
-  */
-  struct list_head link;
-
-  /* DRIVER: Name of the registered driver */
-  char name[32];
-
-  /* DRIVER: Driver's private data */
-  void *priv;
-
-  /* DRIVER: Voltages the host bus can provide */
-  uint voltages;
-
-  /* API: Version of the card */
-  uint version;
-
-  /* API: Test if the driver was already initialized */
-  uint has_init;
-
-  /* DRIVER: Minimum frequency the host bus can provide */
-  uint f_min;
-
-  /* DRIVER: Maximum frequency the host bus can provide */
-  uint f_max;
-
-  /* API: Is the card SDHC */
-  int high_capacity;
-
-  /* API: Actual width of the bus used by the current card */
-  uint bus_width;
-
-  /*
-   * DRIVER: Clock frequency to be configured on the host bus, this is read-only
-   *         for the driver.
-   */
-  uint clock;
-
-  /* API: Capabilities of the card */
-  uint card_caps;
-
-  /* DRIVER: MMC bus capabilities */
-  uint host_caps;
-
-  /* API: Configuration and ID data retrieved from the card */
-  uint ocr;
-  uint scr[2];
-  uint csd[4];
-  uint cid[4];
-  ushort rca;
-
-  /* API: Partition configuration */
-  char part_config;
-
-  /* API: Number of partitions */
-  char part_num;
-
-  /* API: Transmission speed */
-  uint tran_speed;
-
-  /* API: Read block length */
-  uint read_bl_len;
-
-  /* API: Write block length */
-  uint write_bl_len;
-
-  /* API: Erase group size */
-  uint erase_grp_size;
-
-  /* API: Capacity of the card */
-  u64 capacity;
-
-  /* API: Descriptor of this block device */
-  block_dev_desc_t block_dev;
-
-  /* DRIVER: Function used to submit command to the card */
-  int (*send_cmd)(struct mmc *mmc,
-		  struct mmc_cmd *cmd, struct mmc_data *data);
-
-  /* DRIVER: Function used to configure the host */
-  void (*set_ios)(struct mmc *mmc);
-
-  /* DRIVER: Function used to initialize the host */
-  int (*init)(struct mmc *mmc);
-
-  /* DRIVER: Function used to report the status of Card Detect pin */
-  int (*getcd)(struct mmc *mmc);
-
-  /*
-   * DRIVER: Maximum amount of blocks sent during multiblock xfer,
-   *         set to 0 to autodetect.
-   */
-  uint b_max;
-};
-
-The API above is the new API used by most of the drivers. There're still drivers
-in the tree that use old, legacy API though.
-
-2) Approach
------------
-
-To convert the MMC subsystem to a proper driver model, the "struct mmc"
-structure will have to be properly split in the first place. The result will
-consist of multiple parts, first will be the structure defining operations
-provided by the MMC driver:
-
-struct mmc_driver_ops {
-  /* Function used to submit command to the card */
-  int  (*send_cmd)(struct mmc *mmc,
-		  struct mmc_cmd *cmd, struct mmc_data *data);
-  /* DRIVER: Function used to configure the host */
-  void (*set_ios)(struct mmc *mmc);
-  /* Function used to initialize the host */
-  int  (*init)(struct mmc *mmc);
-  /* Function used to report the status of Card Detect pin */
-  int  (*getcd)(struct mmc *mmc);
-}
-
-The second part will define the parameters of the MMC driver:
-
-struct mmc_driver_params {
-  /* Voltages the host bus can provide */
-  uint32_t voltages;
-  /* Minimum frequency the host bus can provide */
-  uint32_t f_min;
-  /* Maximum frequency the host bus can provide */
-  uint32_t f_max;
-  /* MMC bus capabilities */
-  uint32_t host_caps;
-  /*
-   * Maximum amount of blocks sent during multiblock xfer,
-   * set to 0 to autodetect.
-   */
-  uint32_t b_max;
-}
-
-And finally, the internal per-card data of the MMC subsystem core:
-
-struct mmc_card_props {
-  /* Version of the card */
-  uint32_t version;
-  /* Test if the driver was already initializes */
-  bool     has_init;
-  /* Is the card SDHC */
-  bool     high_capacity;
-  /* Actual width of the bus used by the current card */
-  uint8_t  bus_width;
-  /* Capabilities of the card */
-  uint32_t card_caps;
-  /* Configuration and ID data retrieved from the card */
-  uint32_t ocr;
-  uint32_t scr[2];
-  uint32_t csd[4];
-  uint32_t cid[4];
-  uint16_t rca;
-  /* Partition configuration */
-  uint8_t  part_config;
-  /* Number of partitions */
-  uint8_t  part_num;
-  /* Transmission speed */
-  uint32_t tran_speed;
-  /* Read block length */
-  uint32_t read_bl_len;
-  /* Write block length */
-  uint32_t write_bl_len;
-  /* Erase group size */
-  uint32_t erase_grp_size;
-  /* Capacity of the card */
-  uint64_t capacity;
-  /* Descriptor of this block device */
-  block_dev_desc_t block_dev;
-}
-
-The probe() function will then register the MMC driver by calling:
-
-  mmc_device_register(struct instance *i, struct mmc_driver_ops *o,
-					  struct mmc_driver_params *p);
-
-The struct mmc_driver_params will have to be dynamic in some cases, but the
-driver shouldn't modify it's contents elsewhere than in probe() call.
-
-Next, since the MMC drivers will now be consistently registered into the driver
-tree from board file, the functions "board_mmc_init()" and "cpu_mmc_init()" will
-disappear altogether.
-
-As for the legacy drivers, these will either be converted or removed altogether.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  arm_pl180_mmci.c
-  ----------------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  atmel_mci.c
-  -----------
-  This driver uses the legacy API and should be removed unless converted. It is
-  probably possbible to replace this driver with gen_atmel_mci.c . No conversion
-  will be done on this driver.
-
-  bfin_sdh.c
-  ----------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  davinci_mmc.c
-  -------------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  fsl_esdhc.c
-  -----------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple, unless some problem appears due to the FDT
-  component of the driver.
-
-  ftsdc010_esdhc.c
-  ----------------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  gen_atmel_mci.c
-  ---------------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  mmc_spi.c
-  ---------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  mv_sdhci.c
-  ----------
-  This is a component of the SDHCI support, allowing it to run on Marvell
-  Kirkwood chip. It is probable the SDHCI support will have to be modified to
-  allow calling functions from this file based on information passed via
-  platform_data.
-
-  mxcmmc.c
-  --------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  mxsmmc.c
-  --------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  omap_hsmmc.c
-  ------------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  pxa_mmc.c
-  ---------
-  This driver uses the legacy API and is written in a severely ad-hoc manner.
-  This driver will be removed in favor of pxa_mmc_gen.c, which is proved to work
-  better and is already well tested. No conversion will be done on this driver
-  anymore.
-
-  pxa_mmc_gen.c
-  -------------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  s5p_mmc.c
-  ---------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  sdhci.c
-  -------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple, though it'd be necessary to modify this driver
-  to also support the Kirkwood series and probably also Tegra series of CPUs.
-  See the respective parts of this section for details.
-
-  sh_mmcif.c
-  ----------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
-
-  tegra2_mmc.c
-  ------------
-  Follows the new API and also has a good encapsulation of the whole driver. The
-  conversion here will be simple.
diff --git a/doc/driver-model/UDM-net.txt b/doc/driver-model/UDM-net.txt
deleted file mode 100644
index 097ed69..0000000
--- a/doc/driver-model/UDM-net.txt
+++ /dev/null
@@ -1,428 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-Net system analysis
-===================
-Marek Vasut <marek.vasut@gmail.com>
-2012-03-03
-
-I) Overview
------------
-
-The networking subsystem already supports multiple devices. Therefore the
-conversion shall not be very hard.
-
-The network subsystem is operated from net/eth.c, which tracks all registered
-ethernet interfaces and calls their particular functions registered via
-eth_register().
-
-The eth_register() is called from the network driver initialization function,
-which in turn is called most often either from "board_net_init()" or
-"cpu_net_init()". This function has one important argument, which is the
-"struct eth_device", defined at include/net.h:
-
-struct eth_device {
-  /* DRIVER: Name of the device */
-  char name[NAMESIZE];
-  /* DRIVER: MAC address */
-  unsigned char enetaddr[6];
-  /* DRIVER: Register base address */
-  int iobase;
-  /* CORE: state of the device */
-  int state;
-
-  /* DRIVER: Device initialization function */
-  int  (*init) (struct eth_device*, bd_t*);
-  /* DRIVER: Function for sending packets */
-  int  (*send) (struct eth_device*, volatile void* packet, int length);
-  /* DRIVER: Function for receiving packets */
-  int  (*recv) (struct eth_device*);
-  /* DRIVER: Function to cease operation of the device */
-  void (*halt) (struct eth_device*);
-  /* DRIVER: Function to send multicast packet (OPTIONAL) */
-  int (*mcast) (struct eth_device*, u32 ip, u8 set);
-  /* DRIVER: Function to change ethernet MAC address */
-  int  (*write_hwaddr) (struct eth_device*);
-  /* CORE: Next device in the linked list of devices managed by net core */
-  struct eth_device *next;
-  /* CORE: Device index */
-  int index;
-  /* DRIVER: Driver's private data */
-  void *priv;
-};
-
-This structure defines the particular driver, though also contains elements that
-should not be exposed to the driver, like core state.
-
-Small, but important part of the networking subsystem is the PHY management
-layer, whose drivers are contained in drivers/net/phy. These drivers register in
-a very similar manner to network drivers, by calling "phy_register()" with the
-argument of "struct phy_driver":
-
-struct phy_driver {
-  /* DRIVER: Name of the PHY driver */
-  char *name;
-  /* DRIVER: UID of the PHY driver */
-  unsigned int uid;
-  /* DRIVER: Mask for UID of the PHY driver */
-  unsigned int mask;
-  /* DRIVER: MMDS of the PHY driver */
-  unsigned int mmds;
-  /* DRIVER: Features the PHY driver supports */
-  u32 features;
-  /* DRIVER: Initialize the PHY hardware */
-  int (*probe)(struct phy_device *phydev);
-  /* DRIVER: Reconfigure the PHY hardware */
-  int (*config)(struct phy_device *phydev);
-  /* DRIVER: Turn on the PHY hardware, allow it to send/receive */
-  int (*startup)(struct phy_device *phydev);
-  /* DRIVER: Turn off the PHY hardware */
-  int (*shutdown)(struct phy_device *phydev);
-  /* CORE: Allows this driver to be part of list of drivers */
-  struct list_head list;
-};
-
-II) Approach
-------------
-
-To convert the elements of network subsystem to proper driver model method, the
-"struct eth_device" will have to be split into multiple components. The first
-will be a structure defining the driver operations:
-
-struct eth_driver_ops {
-  int  (*init)(struct instance*, bd_t*);
-  int  (*send)(struct instance*, void *packet, int length);
-  int  (*recv)(struct instance*);
-  void (*halt)(struct instance*);
-  int  (*mcast)(struct instance*, u32 ip, u8 set);
-  int  (*write_hwaddr)(struct instance*);
-};
-
-Next, there'll be platform data which will be per-driver and will replace the
-"priv" part of "struct eth_device". Last part will be the per-device core state.
-
-With regards to the PHY part of the API, the "struct phy_driver" is almost ready
-to be used with the new driver model approach. The only change will be the
-replacement of per-driver initialization functions and removal of
-"phy_register()" function in favor or driver model approach.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  drivers/net/4xx_enet.c
-  ----------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/altera_tse.c
-  ------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/armada100_fec.c
-  ---------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/at91_emac.c
-  -----------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/ax88180.c
-  ---------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/ax88796.c
-  ---------------------
-
-  This file contains a components of the NE2000 driver, implementing only
-  different parts on the NE2000 clone AX88796. This being no standalone driver,
-  no conversion will be done here.
-
-  drivers/net/bfin_mac.c
-  ----------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/calxedaxgmac.c
-  --------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/cs8900.c
-  --------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/davinci_emac.c
-  --------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/dc2114x.c
-  ---------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/designware.c
-  ------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/dm9000x.c
-  ---------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/dnet.c
-  ------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/e1000.c
-  -------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/e1000_spi.c
-  -----------------------
-
-  Driver for the SPI bus integrated on the Intel E1000. This is not part of the
-  network stack.
-
-  drivers/net/eepro100.c
-  ----------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/enc28j60.c
-  ----------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/ep93xx_eth.c
-  ------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/ethoc.c
-  -------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/fec_mxc.c
-  ---------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/fsl_mcdmafec.c
-  --------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/fsl_mdio.c
-  ----------------------
-
-  This file contains driver for FSL MDIO interface, which is not part of the
-  networking stack.
-
-  drivers/net/ftgmac100.c
-  -----------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/ftmac100.c
-  ----------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/greth.c
-  -------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/inca-ip_sw.c
-  ------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/ks8695eth.c
-  -----------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/lan91c96.c
-  ----------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/macb.c
-  ------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/mcffec.c
-  --------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/mcfmii.c
-  --------------------
-
-  This file contains MII interface driver for MCF FEC.
-
-  drivers/net/mpc512x_fec.c
-  -------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/mpc5xxx_fec.c
-  -------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/mvgbe.c
-  -------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/natsemi.c
-  ---------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/ne2000_base.c
-  -------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process. This driver contains the core
-  implementation of NE2000, which needs a few external functions, implemented by
-  AX88796, NE2000 etc.
-
-  drivers/net/ne2000.c
-  --------------------
-
-  This file implements external functions necessary for native NE2000 compatible
-  networking card to work.
-
-  drivers/net/netconsole.c
-  ------------------------
-
-  This is actually an STDIO driver.
-
-  drivers/net/ns8382x.c
-  ---------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/pcnet.c
-  -------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/plb2800_eth.c
-  -------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/rtl8139.c
-  ---------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/rtl8169.c
-  ---------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/sh_eth.c
-  --------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/smc91111.c
-  ----------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/smc911x.c
-  ---------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/tsec.c
-  ------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/tsi108_eth.c
-  ------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/uli526x.c
-  ---------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/vsc7385.c
-  ---------------------
-
-  This is a driver that only uploads firmware to a switch. This is not subject
-  of conversion.
-
-  drivers/net/xilinx_axi_emac.c
-  -----------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
-
-  drivers/net/xilinx_emaclite.c
-  -----------------------------
-
-  This driver uses the standard new networking API, therefore there should be no
-  obstacles throughout the conversion process.
diff --git a/doc/driver-model/UDM-pci.txt b/doc/driver-model/UDM-pci.txt
deleted file mode 100644
index 1dce99d..0000000
--- a/doc/driver-model/UDM-pci.txt
+++ /dev/null
@@ -1,253 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-PCI subsystem analysis
-======================
-
-Pavel Herrmann <morpheus.ibis@gmail.com>
-2012-03-17
-
-I) Overview
------------
-
-  U-Boot already supports multiple PCI busses, stored in a linked-list of
-  pci_controller structures. This structure contains generic driver data, bus
-  interface operations and private data for the driver.
-
-  Bus interface operations for PCI are (names are self-explanatory):
-
-    read_byte()
-    read_word()
-    read_dword()
-    write_byte()
-    write_word()
-    write_dword()
-
-  Each driver has to implement dword operations, and either implement word and
-  byte operations, or use shared $operation_config_$type_via_dword (eg.
-  read_config_byte_via_dword and similar) function. These functions are used
-  for config space I/O (read_config_dword and similar functions of the PCI
-  subsystem), which is used to configure the connected devices for standard MMIO
-  operations. All data transfers by respective device drivers are then done by
-  MMIO
-
-  Each driver also defines a separate init function, which has unique symbol
-  name, and thus more drivers can be compiled in without colliding. This init
-  function is typically called from pci_init_board(), different for each
-  particular board.
-
-  Some boards also define a function called fixup_irq, which gets called after
-  scanning the PCI bus for devices, and should dismiss any interrupts.
-
-  Several drivers are also located in arch/ and should be moved to drivers/pci.
-
-II) Approach
-------------
-
-  The pci_controller structure needs to be broken down to fit the new driver
-  model. Due to a large number of members, this will be done through three
-  distinct accessors, one for memory regions, one for config table and one for
-  everything else. That will make the pci_ops structure look like this:
-
-    struct pci_ops {
-      int (*read_byte)(struct instance *bus, pci_dev_t *dev, int addr,
-		       u8 *buf);
-      int (*read_word)(struct instance *bus, pci_dev_t *dev, int addr,
-		       u16 *buf);
-      int (*read_dword)(struct instance *bus, pci_dev_t *dev, int addr,
-			u32 *buf);
-      int (*write_byte)(struct instance *bus, pci_dev_t *dev, int addr,
-			u8 val);
-      int (*write_byte)(struct instance *bus, pci_dev_t *dev, int addr,
-			u8 val);
-      int (*write_dword)(struct instance *bus, pci_dev_t *dev, int addr,
-			 u32 val);
-      void (*fixup_irq)(struct instance *bus, pci_dev_t *dev);
-      struct pci_region* (*get_region)(struct instance *, uint num);
-      struct pci_config_table* (*get_cfg_table)(struct instance *bus);
-      uint (*get_option)(struct instance * bus, enum pci_option_code op);
-    }
-
-    enum pci_option_code {
-      PCI_OPT_BUS_NUMBER=0,
-      PCI_OPT_REGION_COUNT,
-      PCI_OPT_INDIRECT_TYPE,
-      PCI_OPT_AUTO_MEM,
-      PCI_OPT_AUTO_IO,
-      PCI_OPT_AUTO_PREFETCH,
-      PCI_OPT_AUTO_FB,
-      PCI_OPT_CURRENT_BUS,
-      PCI_OPT_CFG_ADDR,
-    }
-
-  The return value for get_option will be an unsigned integer value for any
-  option code. If the option currently is a pointer to pci_region, it will
-  return an index for get_region function. Special case has to be made for
-  PCI_OPT_CFG_ADDR, which should be interpreted as a pointer, but it is only
-  used for equality in find_hose_by_cfg_addr, and thus can be returned as an
-  uint. Other function using cfg_addr value are read/write functions for
-  specific drivers (especially ops for indirect bridges), and thus have access
-  to private_data of the driver instance.
-
-  The config table accessor will return a pointer to a NULL-terminated array of
-  pci_config_table, which is supplied by the board in platform_data, or NULL if
-  the board didn't specify one. This table is used to override PnP
-  auto-initialization, or to specific initialization functions for non-PNP
-  devices.
-
-  Transparent PCI-PCI bridges will get their own driver, and will forward all
-  operations to operations of their parent bus. This however makes it
-  impossible to use instances to identify devices, as not all devices will be
-  directly visible to the respective bus driver.
-
-  Init functions of controller drivers will be moved to their respective
-  probe() functions, in accordance to the driver model.
-
-  The PCI core will handle all mapping functions currently found in pci.c, as
-  well as proxy functions for read/write operations of the drivers. The PCI
-  core will also handle bus scanning and device configuration.
-
-  The PnP helper functions currently in pci_auto.c will also be a part of PCI
-  core, but they will be exposed only to PCI controller drivers, not to other
-  device drivers.
-
-  The PCI API for device drivers will remain largely unchanged, most drivers
-  will require no changes at all, and all modifications will be limited to
-  changing the pci_controlle into instance*.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  A) drivers in drivers/pci/
-  --------------------------
-
-    pci_indirect.c
-    --------------
-      Shared driver for indirect PCI bridges, several CONFIG macros - will
-      require significant cleanup.
-
-    pci_sh4.c
-    ---------
-      Shared init function for SH4 drivers, uses dword for read/write ops.
-
-    pci_sh7751.c
-    ------------
-      Standard driver, uses SH4 shared init.
-
-    pci_sh7780.c
-    ------------
-      Standard driver, uses SH4 shared init.
-
-    tsi108_pci.c
-    ------------
-      Standard driver, uses dword for read/write ops.
-
-    fsl_pci_init.c
-    --------------
-      Driver for PCI and PCI-e, uses indirect functions.
-
-    pci_ftpci100.c
-    --------------
-      Standard driver, uses indirect functions, has separate scan/setup
-      functions.
-
-  B) driver in arch/
-  ------------------
-
-    x86/lib/pci_type1.c
-    -------------------
-      Standard driver, specifies all read/write functions separately.
-
-    m68k/cpu/mcf5445x/pci.c
-    -----------------------
-      Standard driver, specifies all read/write functions separately.
-
-    m68k/cpu/mcf547x_8x/pci.c
-    -------------------------
-      Standard driver, specifies all read/write functions separately.
-
-    powerpc/cpu/mpc824x/pci.c
-    -------------------------
-      Standard driver, uses indirect functions, does not setup HW.
-
-    powerpc/cpu/mpc8260/pci.c
-    -------------------------
-      Standard driver, uses indirect functions.
-
-    powerpc/cpu/ppc4xx/4xx_pci.c
-    ----------------------------
-      Standard driver, uses indirect functions.
-
-    powerpc/cpu/ppc4xx/4xx_pcie.c
-    -----------------------------
-      PCI-e driver, specifies all read/write functions separately.
-
-    powerpc/cpu/mpc83xx/pci.c
-    -------------------------
-      Standard driver, uses indirect functions.
-
-    powerpc/cpu/mpc83xx/pcie.c
-    --------------------------
-      PCI-e driver, specifies all read/write functions separately.
-
-    powerpc/cpu/mpc5xxx/pci_mpc5200.c
-    ---------------------------------
-      Standard driver, uses dword for read/write ops.
-
-    powerpc/cpu/mpc512x/pci.c
-    -------------------------
-      Standard driver, uses indirect functions.
-
-    powerpc/cpu/mpc85xx/pci.c
-    -------------------------
-      Standard driver, uses indirect functions, has two busses.
-
-  C) drivers in board/
-  --------------------
-
-    eltec/elppc/pci.c
-    -----------------
-      Standard driver, uses indirect functions.
-
-    amirix/ap1000/pci.c
-    -------------------
-      Standard driver, specifies all read/write functions separately.
-
-    prodrive/p3mx/pci.c
-    -------------------
-      Standard driver, uses dword for read/write ops, has two busses.
-
-    esd/cpci750/pci.c
-    -----------------
-      Standard driver, uses dword for read/write ops, has two busses.
-
-    esd/common/pci.c
-    ----------------
-      Standard driver, uses dword for read/write ops.
-
-    dave/common/pci.c
-    -----------------
-      Standard driver, uses dword for read/write ops.
-
-    ppmc7xx/pci.c
-    -------------
-      Standard driver, uses indirect functions.
-
-    Marvell/db64360/pci.c
-    ---------------------
-      Standard driver, uses dword for read/write ops, has two busses.
-
-    Marvell/db64460/pci.c
-    ---------------------
-      Standard driver, uses dword for read/write ops, has two busses.
-
-    evb64260/pci.c
-    --------------
-      Standard driver, uses dword for read/write ops, has two busses.
-
-    armltd/integrator/pci.c
-    -----------------------
-      Standard driver, specifies all read/write functions separately.
-
-  All drivers will be moved to drivers/pci. Several drivers seem
-  similar/identical, especially those located under board, and may be merged
-  into one.
diff --git a/doc/driver-model/UDM-pcmcia.txt b/doc/driver-model/UDM-pcmcia.txt
deleted file mode 100644
index d55e89d..0000000
--- a/doc/driver-model/UDM-pcmcia.txt
+++ /dev/null
@@ -1,78 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-PCMCIA analysis
-===============
-Viktor Krivak <viktor.krivak@gmail.com>
-2012-03-17
-
-I) Overview
------------
-
-  U-boot implements only 2 methods to interoperate with pcmcia. One to turn
-  device on and other to turn device off. Names of these methods are usually
-  pcmcia_on() and pcmcia_off() without any parameters. Some files in driver
-  directory implements only internal API. These methods aren't used outside
-  driver directory and they are not converted to new driver model.
-
-II) Approach
------------
-
-  1) New API
-  ----------
-
-    Current API is preserved and all internal methods are hiden.
-
-    struct ops {
-      void (*pcmcia_on)(struct instance *i);
-      void (*pcmcia_off)(struct instance *i);
-    }
-
-  2) Conversion
-  -------------
-
-    In header file pcmcia.h are some other variables which are used for
-    additional configuration. But all have to be moved to platform data or to
-    specific driver implementation.
-
-  3) Platform data
-  ----------------
-
-    Many boards have custom implementation of internal API. Pointers to these
-    methods are stored in platform_data. But the most implementations for Intel
-    82365 and compatible PC Card controllers and Yenta-compatible
-    PCI-to-CardBus controllers implement whole API per board. In these cases
-    pcmcia_on() and pcmcia_off() behave only as wrappers and call specific
-    board methods.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  i82365.c
-  --------
-    Driver methods have different name i82365_init() and i82365_exit but
-    all functionality is the same. Board files board/atc/ti113x.c and
-    board/cpc45/pd67290.c use their own implementation of these method.
-    In this case all methods in driver behave only as wrappers.
-
-  marubun_pcmcia.c
-  ----------------
-    Meets standard API behaviour. Simple conversion.
-
-  mpc8xx_pcmcia.c
-  ---------------
-    Meets standard API behaviour. Simple conversion.
-
-  rpx_pcmcia.c
-  ------------
-    Implements only internal API used in other drivers. Non of methods
-    implemented here are used outside driver model.
-
-  ti_pci1410a.c
-  -------------
-    Has different API but methods in this file are never called. Probably
-    dead code.
-
-  tqm8xx_pcmcia.c
-  ---------------
-    Implements only internal API used in other drivers. Non of methods
-    implemented here are used outside driver model.
diff --git a/doc/driver-model/UDM-power.txt b/doc/driver-model/UDM-power.txt
deleted file mode 100644
index 666d553..0000000
--- a/doc/driver-model/UDM-power.txt
+++ /dev/null
@@ -1,88 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-POWER analysis
-==============
-Viktor Krivak <viktor.krivak@gmail.com>
-2012-03-09
-
-I) Overview
------------
-
-  1) Actual state
-  ---------------
-
-  At this moment power doesn't contain API. There are many methods for
-  initialization of some board specific functions but only few does what is
-  expected. Basically only one file contains something meaningful for this
-  driver.
-
-  2) Current implementation
-  -------------------------
-
-  In file twl6030.c are methods twl6030_stop_usb_charging() and
-  twl6030_start_usb_charging() for start and stop charging from USB. There are
-  also methods to get information about battery state and initialization of
-  battery charging. Only these methods are used in converted API.
-
-
-II) Approach
-------------
-
-  1) New API
-  ----------
-
-  New API implements only functions specific for managing power. All board
-  specific init methods are moved to other files. Name of methods are
-  self-explanatory.
-
-  struct ops {
-    void (*start_usb_charging)(struct instance *i);
-    void (*stop_usb_charging)(struct instance *i);
-    int  (*get_battery_current)(struct instance *i);
-    int  (*get_battery_voltage)(struct instance *i);
-    void (*init_battery_charging)(struct instance *i);
-  }
-
-  2) Conversions of other methods
-  -------------------------------
-
-  Methods that can't be converted to new API are moved to board file or to
-  special file for board hacks.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  ftpmu010.c
-  ----------
-  All methods of this file are moved to another location.
-    void ftpmu010_32768osc_enable(void): Move to boards hacks
-    void ftpmu010_mfpsr_select_dev(unsigned int dev): Move to board file
-						      arch/nds32/lib/board.c
-    void ftpmu010_mfpsr_diselect_dev(unsigned int dev): Dead code
-    void ftpmu010_dlldis_disable(void): Dead code
-    void ftpmu010_sdram_clk_disable(unsigned int cr0): Move to board file
-						       arch/nds32/lib/board.c
-    void ftpmu010_sdramhtc_set(unsigned int val): Move to board file
-						  arch/nds32/lib/board.c
-
-  twl4030.c
-  ---------
-  All methods of this file are moved to another location.
-    void twl4030_power_reset_init(void): Move to board hacks
-    void twl4030_pmrecv_vsel_cfg(u8 vsel_reg, u8 vsel_val, u8 dev_grp,
-				 u8 dev_grp_sel): Move to board hacks
-    void twl4030_power_init(void): Move to board hacks
-    void twl4030_power_mmc_init(void): Move to board hacks
-
-  twl6030.c
-  ---------
-  Some methods are converted to new API and rest are moved to another location.
-    void twl6030_stop_usb_charging(void): Convert to new API
-    void twl6030_start_usb_charging(void): Convert to new API
-    int twl6030_get_battery_current(void): Convert to new API
-    int twl6030_get_battery_voltage(void): Convert to new API
-    void twl6030_init_battery_charging(void): Convert to new API
-    void twl6030_power_mmc_init(): Move to board file
-				   drivers/mmc/omap_hsmmc.c
-    void twl6030_usb_device_settings(): Move to board file
-					drivers/usb/musb/omap3.c
diff --git a/doc/driver-model/UDM-rtc.txt b/doc/driver-model/UDM-rtc.txt
deleted file mode 100644
index 3640d24..0000000
--- a/doc/driver-model/UDM-rtc.txt
+++ /dev/null
@@ -1,253 +0,0 @@
-=============================
-RTC device subsystem analysis
-=============================
-
-Tomas Hlavacek <tmshlvck@gmail.com>
-2012-03-10
-
-I) Overview
------------
-
-U-Boot currently implements one common API for RTC devices. The interface
-is defined in include/rtc.h and comprises of functions and structures:
-
-    struct rtc_time {
-	int tm_sec;
-	int tm_min;
-	int tm_hour;
-	int tm_mday;
-	int tm_mon;
-	int tm_year;
-	int tm_wday;
-	int tm_yday;
-	int tm_isdst;
-    };
-
-    int rtc_get (struct rtc_time *);
-    int rtc_set (struct rtc_time *);
-    void rtc_reset (void);
-
-The functions are implemented by a proper device driver in drivers/rtc
-directory and the driver to be compiled in is selected in a Makefile.
-Drivers are mutually exclusive.
-
-Drivers depends on date code in drivers/rtc/date.c and naturally on board
-specific data.
-
-II) Approach
-------------
-
-  1) New API
-  ----------
-  In the UDM each rtc driver would register itself by a function
-
-    int rtc_device_register(struct instance *i,
-			    struct rtc_device_ops *o);
-
-  The structure being defined as follows:
-
-    struct rtc_device_ops {
-	int  (*get_time)(struct instance *i, struct rtc_time *t);
-	int  (*set_time)(struct instance *i, struct rtc_time *t);
-	int  (*reset)(struct instance *i);
-    };
-
-
-  2) Conversion thougths
-  ----------------------
-  U-Boot RTC drivers exports the same functions and therefore the conversion
-  of the drivers is straight-forward. There is no initialization needed.
-
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  drivers/rtc/rv3029.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/s3c24x0_rtc.c
-  -------------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/pt7c4338.c
-  ----------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/mvrtc.c
-  -------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ftrtc010.c
-  ----------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/mpc5xxx.c
-  ---------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ds164x.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/rs5c372.c
-  ---------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/m41t94.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/mc13xxx-rtc.c
-  -------------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/mcfrtc.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/davinci.c
-  ---------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/rx8025.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/bfin_rtc.c
-  ----------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/m41t62.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ds1306.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/mpc8xx.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ds3231.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ds12887.c
-  ---------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ds1302.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ds1374.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ds174x.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/m41t60.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/m48t35ax.c
-  ----------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/pl031.c
-  -------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/x1205.c
-  -------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/m41t11.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/pcf8563.c
-  ---------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/mk48t59.c
-  ---------------------
-  Macros needs cleanup. Besides that the driver is standard rtc.
-  Simple conversion is possible.
-
-
-  drivers/rtc/mxsrtc.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ds1307.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ds1556.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/rtc4543.c
-  ---------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/ds1337.c
-  --------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/isl1208.c
-  ---------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/max6900.c
-  ---------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/mc146818.c
-  ----------------------
-  The driver is standard rtc. Simple conversion is possible.
-
-
-  drivers/rtc/at91sam9_rtt.c
-  --------------------------
-  The driver is standard rtc. Simple conversion is possible.
diff --git a/doc/driver-model/UDM-serial.txt b/doc/driver-model/UDM-serial.txt
deleted file mode 100644
index ed804a8..0000000
--- a/doc/driver-model/UDM-serial.txt
+++ /dev/null
@@ -1,155 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-Serial I/O analysis
-===================
-Marek Vasut <marek.vasut@gmail.com>
-2012-02-20
-
-I) Overview
------------
-
-The serial port support currently requires the driver to export the following
-functions:
-
-  serial_putc() ...... Output a character
-  serial_puts() ...... Output string, often done using serial_putc()
-  serial_tstc() ...... Test if incoming character is in a buffer
-  serial_getc() ...... Retrieve incoming character
-  serial_setbrg() .... Configure port options
-  serial_init() ...... Initialize the hardware
-
-The simpliest implementation, supporting only one port, simply defines these six
-functions and calls them. Such calls are scattered all around U-Boot, especiall
-serial_putc(), serial_puts(), serial_tstc() and serial_getc(). The serial_init()
-and serial_setbrg() are often called from platform-dependent places.
-
-It's important to consider current implementation of CONFIG_SERIAL_MULTI though.
-This resides in common/serial.c and behaves as a multiplexer for serial ports.
-This, by calling serial_assign(), allows user to switch I/O from one serial port
-to another. Though the environmental variables "stdin", "stdout", "stderr"
-remain set to "serial".
-
-These variables are managed by the IOMUX. This resides in common/iomux.c and
-manages all console input/output from U-Boot. For serial port, only one IOMUX is
-always registered, called "serial" and the switching of different serial ports
-is done by code in common/serial.c.
-
-On a final note, it's important to mention function default_serial_console(),
-which is platform specific and reports the default serial console for the
-platform, unless proper environment variable overrides this.
-
-II) Approach
-------------
-
-Drivers not using CONFIG_SERIAL_MULTI already will have to be converted to
-similar approach. The probe() function of a driver will call a function
-registering the driver with a STDIO subsystem core, stdio_device_register().
-
-The serial_init() function will now be replaced by probe() function of the
-driver, the rest of the components of the driver will be converted to standard
-STDIO driver calls. See [ UDM-stdio.txt ] for details.
-
-The serial_setbrg() function depends on global data pointer. This is wrong,
-since there is likely to be user willing to configure different baudrate on two
-different serial ports. The function will be replaced with STDIO's "conf()"
-call, with STDIO_CONFIG_SERIAL_BAUDRATE argument.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  altera_jtag_uart.c
-  ------------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  altera_uart.c
-  -------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  arm_dcc.c
-  ---------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible, unless used
-  with CONFIG_ARM_DCC_MULTI. Then it registers another separate IOMUX.
-
-  atmel_usart.c
-  -------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  mcfuart.c
-  ---------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  ns16550.c
-  ---------
-  This driver seems complicated and certain consideration will need to be made
-  during conversion. This driver is implemented in very universal manner,
-  therefore it'll be necessary to properly design it's platform_data.
-
-  opencores_yanu.c
-  ----------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  sandbox.c
-  ---------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  serial.c
-  --------
-  This is a complementary part of NS16550 UART driver, see above.
-
-  serial_imx.c
-  ------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible. This driver
-  might be removed in favor of serial_mxc.c .
-
-  serial_ks8695.c
-  ---------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  serial_max3100.c
-  ----------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  serial_mxc.c
-  ------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  serial_pl01x.c
-  --------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible, though this
-  driver in fact contains two drivers in total.
-
-  serial_pxa.c
-  ------------
-  This driver is a bit complicated, but due to clean support for
-  CONFIG_SERIAL_MULTI, there are no expected obstructions throughout the
-  conversion process.
-
-  serial_s3c24x0.c
-  ----------------
-  This driver, being quite ad-hoc might need some work to bring back to shape.
-
-  serial_s5p.c
-  ------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  serial_sa1100.c
-  ---------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  serial_sh.c
-  -----------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  serial_xuartlite.c
-  ------------------
-  No support for CONFIG_SERIAL_MULTI. Simple conversion possible.
-
-  usbtty.c
-  --------
-  This driver seems very complicated and entangled with USB framework. The
-  conversion might be complicated here.
-
-  arch/powerpc/cpu/mpc512x/serial.c
-  ---------------------------------
-  This driver supports CONFIG_SERIAL_MULTI. This driver will need to be moved to
-  proper place.
diff --git a/doc/driver-model/UDM-spi.txt b/doc/driver-model/UDM-spi.txt
deleted file mode 100644
index 9ba0f84..0000000
--- a/doc/driver-model/UDM-spi.txt
+++ /dev/null
@@ -1,200 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-SPI analysis
-============
-Viktor Krivak <viktor.krivak@gmail.com>
-2012-03-03
-
-I) Overview
------------
-
-  1) The SPI driver
-  -----------------
-
-  At this moment U-Boot provides standard API that consist of 7 functions:
-
-  void spi_init(void);
-  struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
-				    unsigned int max_hz, unsigned int mode);
-  void spi_free_slave(struct spi_slave *slave);
-  int  spi_claim_bus(struct spi_slave *slave);
-  void spi_release_bus(struct spi_slave *slave);
-  int  spi_xfer(struct spi_slave *slave, unsigned int bitlen,
-		const void *dout, void *din, unsigned long flags);
-  int  spi_cs_is_valid(unsigned int bus, unsigned int cs);
-  void spi_cs_activate(struct spi_slave *slave);
-  void spi_cs_deactivate(struct spi_slave *slave);
-  void spi_set_speed(struct spi_slave *slave, uint hz);
-
-  Method spi_init() is usually empty. All necessary configuration are sets by
-  spi_setup_slave(). But this configuration is usually stored only in memory.
-  No real hardware sets are made. All hardware settings are provided by method
-  spi_claim_bus(). This method claims the bus and it can't be claimed again
-  until it's release. That's mean all calls of method spi_claim_bus() will
-  fail. But lots of cpu implementation don't meet this behaviour.
-  Method spi_release_bus() does exact opposite. It release bus directly by
-  some hardware sets. spi_free_slave() only free memory allocated by
-  spi_setup_slave(). Method spi_xfer() do actually read and write operation
-  throw specified bus and cs. Other methods are self explanatory.
-
-  2) Current limitations
-  ----------------------
-
-  Theoretically at this moment api allows use more then one bus per device at
-  the time. But in real this can be achieved only when all buses have their
-  own base addresses in memory.
-
-
-II) Approach
-------------
-
-  1) Claiming bus
-  ---------------
-
-  The current api cannot be used because struct spi_slave have to be in
-  private data. In that case user are prohibited to use different bus on one
-  device at same time. But when base memory address for bus are different.
-  It's possible make more instance of this driver. Otherwise it can't can be
-  done because of hardware limitation.
-
-  2) API change
-  -------------
-
-  Method spi_init() is moved to probe. Methods spi_setup_slave() and
-  spi_claim_bus() are joined to one method. This method checks if desired bus
-  exists and is available then configure necessary hardware and claims bus.
-  Method spi_release_bus() and spi_free_slave() are also joined to meet this
-  new approach. Other function remain same. Only struct spi_slave was change
-  to instance.
-
-  struct ops {
-    int  (*spi_request_bus)(struct instance *i, unsigned int bus,
-			    unsigned int cs, unsigned int max_hz,
-			    unsigned int mode);
-    void (*spi_release_bus)(struct instance *i);
-    int  (*spi_xfer) (struct instance *i, unsigned int bitlen,
-		      const void *dout, void *din, unsigned long flags);
-    int  (*spi_cs_is_valid)(struct instance *i, unsigned int bus,
-			    unsigned int cs);
-    void (*spi_cs_activate)(struct instance *i);
-    void (*spi_cs_deactivate)(struct instance *i);
-    void (*spi_set_speed)(struct instance *i, uint hz);
-  }
-
-  3) Legacy API
-  -------------
-
-  To easy conversion of the whole driver. Original and new api can exist next
-  to each other. New API is designed to be only a wrapper that extracts
-  necessary information from private_data and use old api. When driver can
-  use more than one bus at the time. New API require multiple instance. One
-  for each bus. In this case spi_slave have to be copied in each instance.
-
-  4) Conversion TIME-LINE
-  -----------------------
-
-  To prevent build corruption api conversion have to be processed in several
-  independent steps. In first step all old API methods are renamed. After that
-  new API and core function are implemented. Next step is conversion of all
-  board init methods to set platform data. After all these steps it is possible
-  to start conversion of all remaining calls. This procedure guarantees that
-  build procedure and binaries are never broken.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  altera_spi.c
-  ------------
-  All methods have designated structure. Simple conversion possible.
-
-  andes_spi.c
-  -----------
-  All methods have designated structure. Simple conversion possible.
-
-  andes_spi.h
-  -----------
-  Support file for andes_spi.c. No conversion is needed.
-
-  armada100_spi.c
-  ---------------
-  All methods have designated structure. Simple conversion possible.
-
-  atmel_dataflash_spi.c
-  ---------------------
-  Wrong placement. Will be moved to another location.
-
-  atmel_spi.c
-  -----------
-  Supports more than one bus. Need some minor change.
-
-  atmel_spi.h
-  -----------
-  Support file for andes_spi.c. No conversion is needed.
-
-  bfin_spi.c
-  ----------
-  Supports more than one bus. Need some minor change.
-
-  cf_spi.c
-  --------
-  Cooperate with some cpu specific methods from other files. Hard conversion.
-
-  davinci_spi.c
-  -------------
-  All methods have designated structure. Simple conversion possible.
-
-  davinci_spi.h
-  -------------
-  Support file for davinci_spi.h. No conversion is needed.
-
-  fsl_espi.c
-  ----------
-  All methods have designated structure. Simple conversion possible.
-
-  kirkwood_spi.c
-  --------------
-  All methods have designated structure. Simple conversion possible.
-
-  mpc8xxx_spi.c
-  -------------
-  All methods have designated structure. Simple conversion possible.
-
-  mpc52xx_spi.c
-  -------------
-  All methods have designated structure. Simple conversion possible.
-
-  mxc_spi.c
-  ---------
-  All methods have designated structure. Simple conversion possible.
-
-  mxs_spi.c
-  ---------
-  All methods have designated structure. Simple conversion possible.
-
-  oc_tiny_spi.c
-  -------------
-  Supports more than one bus. Need some minor change.
-
-  omap3_spi.c
-  -----------
-  Supports more than one bus. Need some minor change.
-
-  omap3_spi.h
-  -----------
-  Support file for omap3_spi.c. No conversion is needed.
-
-  sh_spi.c
-  --------
-  All methods have designated structure. Simple conversion possible.
-
-  sh_spi.h
-  --------
-  Support file for sh_spi.h. No conversion is needed.
-
-  soft_spi.c
-  ----------
-  Use many board specific method linked from other files. Need careful debugging.
-
-  tegra2_spi.c
-  ------------
-  Some hardware specific problem when releasing bus.
diff --git a/doc/driver-model/UDM-stdio.txt b/doc/driver-model/UDM-stdio.txt
deleted file mode 100644
index 156627b..0000000
--- a/doc/driver-model/UDM-stdio.txt
+++ /dev/null
@@ -1,191 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-I/O system analysis
-===================
-Marek Vasut <marek.vasut@gmail.com>
-2012-02-20
-
-I) Overview
------------
-
-The console input and output is currently done using the STDIO subsystem in
-U-Boot. The design of this subsystem is already flexible enough to be easily
-converted to new driver model approach. Minor changes will need to be done
-though.
-
-Each device that wants to register with STDIO subsystem has to define struct
-stdio_dev, defined in include/stdio_dev.h and containing the following fields:
-
-struct stdio_dev {
-	int     flags;                  /* Device flags: input/output/system */
-	int     ext;                    /* Supported extensions              */
-	char    name[16];               /* Device name                       */
-
-/* GENERAL functions */
-
-	int (*start) (void);            /* To start the device               */
-	int (*stop) (void);             /* To stop the device                */
-
-/* OUTPUT functions */
-
-	void (*putc) (const char c);    /* To put a char                     */
-	void (*puts) (const char *s);   /* To put a string (accelerator)     */
-
-/* INPUT functions */
-
-	int (*tstc) (void);             /* To test if a char is ready...     */
-	int (*getc) (void);             /* To get that char                  */
-
-/* Other functions */
-
-	void *priv;                     /* Private extensions                */
-	struct list_head list;
-};
-
-Currently used flags are DEV_FLAGS_INPUT, DEV_FLAGS_OUTPUT and DEV_FLAGS_SYSTEM,
-extensions being only one, the DEV_EXT_VIDEO.
-
-The private extensions are now used as a per-device carrier of private data and
-finally list allows this structure to be a member of linked list of STDIO
-devices.
-
-The STDIN, STDOUT and STDERR routing is handled by environment variables
-"stdin", "stdout" and "stderr". By configuring the variable to the name of a
-driver, functions of such driver are called to execute that particular
-operation.
-
-II) Approach
-------------
-
-  1) Similarity of serial, video and keyboard drivers
-  ---------------------------------------------------
-
-  All of these drivers can be unified under the STDIO subsystem if modified
-  slightly. The serial drivers basically define both input and output functions
-  and need function to configure baudrate. The keyboard drivers provide only
-  input. On the other hand, video drivers provide output, but need to be
-  configured in certain way. This configuration might be dynamic, therefore the
-  STDIO has to be modified to provide such flexibility.
-
-  2) Unification of serial, video and keyboard drivers
-  ----------------------------------------------------
-
-  Every STDIO device would register a structure containing operation it supports
-  with the STDIO core by calling:
-
-    int stdio_device_register(struct instance *i, struct stdio_device_ops *o);
-
-  The structure being defined as follows:
-
-  struct stdio_device_ops {
-    void (*putc)(struct instance *i, const char c);
-    void (*puts)(struct instance *i, const char *s);    /* OPTIONAL */
-
-    int  (*tstc)(struct instance *i);
-    int  (*getc)(struct instance *i);
-
-    int  (*init)(struct instance *i);
-    int  (*exit)(struct instance *i);
-    int  (*conf)(struct instance *i, enum stdio_config c, const void *data);
-  };
-
-  The "putc()" function will emit a character, the "puts()" function will emit a
-  string. If both of these are set to NULL, the device is considered STDIN only,
-  aka input only device.
-
-  The "getc()" retrieves a character from a STDIN device, while "tstc()" tests
-  if there is a character in the buffer of STDIN device. In case these two are
-  set to NULL, this device is STDOUT / STDERR device.
-
-  Setting all "putc()", "puts()", "getc()" and "tstc()" calls to NULL isn't an
-  error condition, though such device does nothing. By instroducing tests for
-  these functions being NULL, the "flags" and "ext" fields from original struct
-  stdio_dev can be eliminated.
-
-  The "init()" and "exit()" calls are replacement for "start()" and "exit()"
-  calls in the old approach. The "priv" part of the old struct stdio_dev will be
-  replaced by common private data in the driver model and the struct list_head
-  list will be eliminated by introducing common STDIO core, that tracks all the
-  STDIO devices.
-
-  Lastly, the "conf()" call will allow the user to configure various options of
-  the driver. The enum stdio_config contains all possible configuration options
-  available to the STDIO devices, const void *data being the argument to be
-  configured. Currently, the enum stdio_config will contain at least the
-  following options:
-
-  enum stdio_config {
-    STDIO_CONFIG_SERIAL_BAUDRATE,
-  };
-
-  3) Transformation of stdio routing
-  ----------------------------------
-
-  By allowing multiple instances of drivers, the environment variables "stdin",
-  "stdout" and "stderr" can no longer be set to the name of the driver.
-  Therefore the STDIO core, tracking all of the STDIO devices in the system will
-  need to have a small amount of internal data for each device:
-
-  struct stdio_device_node {
-    struct instance          *i;
-    struct stdio_device_ops  *ops;
-    uint8_t                  id;
-    uint8_t                  flags;
-    struct list_head         list;
-  }
-
-  The "id" is the order of the instance of the same driver. The "flags" variable
-  allows multiple drivers to be used at the same time and even for different
-  purpose. The following flags will be defined:
-
-    STDIO_FLG_STDIN ..... This device will be used as an input device. All input
-			  from all devices with this flag set will be received
-			  and passed to the upper layers.
-    STDIO_FLG_STDOUT .... This device will be used as an output device. All
-			  output sent to stdout will be routed to all devices
-			  with this flag set.
-    STDIO_FLG_STDERR .... This device will be used as an standard error output
-			  device. All output sent to stderr will be routed to
-			  all devices with this flag set.
-
-  The "list" member of this structure allows to have a linked list of all
-  registered STDIO devices.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-For in-depth analysis of serial port drivers, refer to [ UDM-serial.txt ].
-For in-depth analysis of keyboard drivers, refer to [ UDM-keyboard.txt ].
-For in-depth analysis of video drivers, refer to [ UDM-video.txt ].
-
-  arch/blackfin/cpu/jtag-console.c
-  --------------------------------
-  This driver is a classic STDIO driver, no problem with conversion is expected.
-
-  board/mpl/pati/pati.c
-  ---------------------
-  This driver registers with the STDIO framework, though it uses a lot of ad-hoc
-  stuff which will need to be sorted out.
-
-  board/netphone/phone_console.c
-  ------------------------------
-  This driver is a classic STDIO driver, no problem with conversion is expected.
-
-  drivers/net/netconsole.c
-  ------------------------
-  This driver is a classic STDIO driver, no problem with conversion is expected.
-
-IV) Other involved files (To be removed)
-----------------------------------------
-
-common/cmd_console.c
-common/cmd_log.c
-common/cmd_terminal.c
-common/console.c
-common/fdt_support.c
-common/iomux.c
-common/lcd.c
-common/serial.c
-common/stdio.c
-common/usb_kbd.c
-doc/README.iomux
diff --git a/doc/driver-model/UDM-tpm.txt b/doc/driver-model/UDM-tpm.txt
deleted file mode 100644
index 0beff4a..0000000
--- a/doc/driver-model/UDM-tpm.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-TPM system analysis
-===================
-Marek Vasut <marek.vasut@gmail.com>
-2012-02-23
-
-I) Overview
------------
-
-There is currently only one TPM chip driver available and therefore the API
-controlling it is very much based on this. The API is very simple:
-
-  int tis_open(void);
-  int tis_close(void);
-  int tis_sendrecv(const u8 *sendbuf, size_t send_size,
-			 u8 *recvbuf, size_t *recv_len);
-
-The command operating the TPM chip only provides operations to send and receive
-bytes from the chip.
-
-II) Approach
-------------
-
-The API can't be generalised too much considering there's only one TPM chip
-supported. But it's a good idea to split the tis_sendrecv() function in two
-functions. Therefore the new API will use register the TPM chip by calling:
-
-  tpm_device_register(struct instance *i, const struct tpm_ops *ops);
-
-And the struct tpm_ops will contain the following members:
-
-  struct tpm_ops {
-    int (*tpm_open)(struct instance *i);
-    int (*tpm_close)(struct instance *i);
-    int (*tpm_send)(const uint8_t *buf, const size_t size);
-    int (*tpm_recv)(uint8_t *buf, size_t *size);
-  };
-
-The behaviour of "tpm_open()" and "tpm_close()" will basically copy the
-behaviour of "tis_open()" and "tis_close()". The "tpm_send()" will be based on
-the "tis_senddata()" and "tis_recv()" will be based on "tis_readresponse()".
-
-III) Analysis of in-tree drivers
---------------------------------
-
-There is only one in-tree driver present, the "drivers/tpm/generic_lpc_tpm.c",
-which will be simply converted as outlined in previous chapter.
diff --git a/doc/driver-model/UDM-twserial.txt b/doc/driver-model/UDM-twserial.txt
deleted file mode 100644
index 5f2c5a3..0000000
--- a/doc/driver-model/UDM-twserial.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-==================================
-TWserial device subsystem analysis
-==================================
-
-Tomas Hlavacek<tmshlvck@gmail.com>
-2012-03-21
-
-I) Overview
------------
-
-U-Boot currently implements one common API for TWSerial devices. The interface
-is defined in include/tws.h and comprises of functions:
-
-    int tws_read(uchar *buffer, int len);
-    int tws_write(uchar *buffer, int len);
-
-The functions are implemented by a proper device driver in drivers/twserial
-directory and the driver to be compiled in is selected in a Makefile. There is
-only one driver present now.
-
-The driver depends on ad-hoc code in board specific data, namely functions:
-
-    void tws_ce(unsigned bit);
-    void tws_wr(unsigned bit);
-    void tws_clk(unsigned bit);
-    void tws_data(unsigned bit);
-    unsigned tws_data_read(void);
-    void tws_data_config_output(unsigned output);
-
-implemented in include/configs/inka4x0.h .
-
-II) Approach
-------------
-
-  U-Boot TWserial drivers exports two simple functions and therefore the conversion
-  of the driver and creating a core for it is not needed. It should be consolidated
-  with include/configs/inka4x0.h and taken to the misc/ dir.
-
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  drivers/twserial/soft_tws.c
-  ---------------------------
-  The driver is the only TWserial driver. The ad-hoc part in
-  include/configs/inka4x0.h and the core soft_tws driver should be consolidated
-  to one compact driver and moved to misc/ .
diff --git a/doc/driver-model/UDM-usb.txt b/doc/driver-model/UDM-usb.txt
deleted file mode 100644
index 5ce85b5..0000000
--- a/doc/driver-model/UDM-usb.txt
+++ /dev/null
@@ -1,94 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-USB analysis
-============
-Marek Vasut <marek.vasut@gmail.com>
-2012-02-16
-
-I) Overview
------------
-
-  1) The USB Host driver
-  ----------------------
-  There are basically four or five USB host drivers. All such drivers currently
-  provide at least the following fuctions:
-
-    usb_lowlevel_init() ... Do the initialization of the USB controller hardware
-    usb_lowlevel_stop() ... Do the shutdown of the USB controller hardware
-
-    usb_event_poll() ...... Poll interrupt from USB device, often used by KBD
-
-    submit_control_msg() .. Submit message via Control endpoint
-    submit_int_msg() ...... Submit message via Interrupt endpoint
-    submit_bulk_msg() ..... Submit message via Bulk endpoint
-
-
-    This allows for the host driver to be easily abstracted.
-
-  2) The USB hierarchy
-  --------------------
-
-  In the current implementation, the USB Host driver provides operations to
-  communicate via the USB bus. This is realised by providing access to a USB
-  root port to which an USB root hub is attached. The USB bus is scanned and for
-  each newly found device, a struct usb_device is allocated. See common/usb.c
-  and include/usb.h for details.
-
-II) Approach
-------------
-
-  1) The USB Host driver
-  ----------------------
-
-  Converting the host driver will follow the classic driver model consideration.
-  Though, the host driver will have to call a function that registers a root
-  port with the USB core in it's probe() function, let's call this function
-
-    usb_register_root_port(&ops);
-
-  This will allow the USB core to track all available root ports. The ops
-  parameter will contain structure describing operations supported by the root
-  port:
-
-  struct usb_port_ops {
-    void   (*usb_event_poll)();
-    int    (*submit_control_msg)();
-    int    (*submit_int_msg)();
-    int    (*submit_bulk_msg)();
-  }
-
-  2) The USB hierarchy and hub drivers
-  ------------------------------------
-
-  Converting the USB heirarchy should be fairy simple, considering the already
-  dynamic nature of the implementation. The current usb_hub_device structure
-  will have to be converted to a struct instance. Every such instance will
-  contain components of struct usb_device and struct usb_hub_device in it's
-  private data, providing only accessors in order to properly encapsulate the
-  driver.
-
-  By registering the root port, the USB framework will instantiate a USB hub
-  driver, which is always present, the root hub. The root hub and any subsequent
-  hub instance is represented by struct instance and it's private data contain
-  amongst others common bits from struct usb_device.
-
-  Note the USB hub driver is partly defying the usual method of registering a
-  set of callbacks to a particular core driver. Instead, a static set of
-  functions is defined and the USB hub instance is passed to those. This creates
-  certain restrictions as of how the USB hub driver looks, but considering the
-  specification for USB hub is given and a different type of USB hub won't ever
-  exist, this approach is ok:
-
-  - Report how many ports does this hub have:
-      uint get_nr_ports(struct instance *hub);
-  - Get pointer to device connected to a port:
-      struct instance *(*get_child)(struct instance *hub, int port);
-  - Instantiate and configure device on port:
-      struct instance *(*enum_dev_on_port)(struct instance *hub, int port);
-
-  3) USB device drivers
-  ---------------------
-
-  The USB device driver, in turn, will have to register various ops structures
-  with certain cores. For example, USB disc driver will have to register it's
-  ops with core handling USB discs etc.
diff --git a/doc/driver-model/UDM-video.txt b/doc/driver-model/UDM-video.txt
deleted file mode 100644
index e67e9e4..0000000
--- a/doc/driver-model/UDM-video.txt
+++ /dev/null
@@ -1,74 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-Video output analysis
-=====================
-Marek Vasut <marek.vasut@gmail.com>
-2012-02-20
-
-I) Overview
------------
-
-The video drivers are most often registered with video subsystem. This subsystem
-often expects to be allowed access to framebuffer of certain parameters. This
-subsystem also provides calls for STDIO subsystem to allow it to output
-characters on the screen. For this part, see [ UDM-stdio.txt ].
-
-Therefore the API has two parts, the video driver part and the part where the
-video driver core registers with STDIO API.
-
-The video driver part will follow the current cfb_console approach, though
-allowing it to be more dynamic.
-
-II) Approach
-------------
-
-Registering the video driver into the video driver core is done by calling the
-following function from the driver probe() function:
-
-  video_device_register(struct instance *i, GraphicDevice *gd);
-
-Because the video driver core is in charge or rendering characters as well as
-bitmaps on the screen, it will in turn call stdio_device_register(i, so), where
-"i" is the same instance as the video driver's one. But "so" will be special
-static struct stdio_device_ops handling the character output.
-
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  arch/powerpc/cpu/mpc8xx/video.c
-  -------------------------------
-  This driver copies the cfb_console [ see drivers/video/cfb_console.c ]
-  approach and acts only as a STDIO device. Therefore there are currently two
-  possible approaches, first being the conversion of this driver to usual STDIO
-  device and second, long-term one, being conversion of this driver to video
-  driver that provides console.
-
-  arch/x86/lib/video.c
-  --------------------
-  This driver registers two separate STDIO devices and should be therefore
-  converted as such.
-
-  board/bf527-ezkit/video.c
-  -------------------------
-  This driver seems bogus as it behaves as STDIO device, but provides no input
-  or output capabilities. It relies on DEV_EXT_VIDEO, which is no longer in use
-  or present otherwise than as a dead code/define.
-
-  board/bf533-stamp/video.c
-  -------------------------
-  This driver seems bogus as it behaves as STDIO device, but provides no input
-  or output capabilities. It relies on DEV_EXT_VIDEO, which is no longer in use
-  or present otherwise than as a dead code/define.
-
-  board/bf548-ezkit/video.c
-  -------------------------
-  This driver seems bogus as it behaves as STDIO device, but provides no input
-  or output capabilities. It relies on DEV_EXT_VIDEO, which is no longer in use
-  or present otherwise than as a dead code/define.
-
-  board/cm-bf548/video.c
-  ----------------------
-  This driver seems bogus as it behaves as STDIO device, but provides no input
-  or output capabilities. It relies on DEV_EXT_VIDEO, which is no longer in use
-  or present otherwise than as a dead code/define.
diff --git a/doc/driver-model/UDM-watchdog.txt b/doc/driver-model/UDM-watchdog.txt
deleted file mode 100644
index 3f13063..0000000
--- a/doc/driver-model/UDM-watchdog.txt
+++ /dev/null
@@ -1,329 +0,0 @@
-The U-Boot Driver Model Project
-===============================
-Watchdog device subsystem analysis
-==================================
-
-Tomas Hlavacek <tmshlvck@gmail.com>
-2012-03-09
-
-I) Overview
------------
-
-U-Boot currently implements an API for HW watchdog devices as explicit drivers
-in drivers/watchdog directory. There are also drivers for both hardware and
-software watchdog on particular CPUs implemented in arch/*/cpu/*/cpu.c. There
-are macros in include/watchdog.h that selects between SW and HW watchdog and
-assembly SW implementation.
-
-The current common interface comprises of one set out of these two possible
-variants:
-
-    1)
-    void watchdog_reset(void);
-    int watchdog_disable(void);
-    int watchdog_init(void);
-
-    2)
-    void hw_watchdog_reset(void);
-    void hw_watchdog_init(void);
-
-The watchdog implementations are also spread through board/*/*.c that in
-some cases. The API and semantics is in most cases same as the above
-mentioned common functions.
-
-
-II) Approach
-------------
-
-  1) New API
-  ----------
-
-  In the UDM each watchdog driver would register itself by a function
-
-    int watchdog_device_register(struct instance *i,
-				 const struct watchdog_device_ops *o);
-
-  The structure being defined as follows:
-
-    struct watchdog_device_ops {
-	int (*disable)(struct instance *i);
-	void (*reset)(struct instance *i);
-    };
-
-  The watchdog_init() function will be dissolved into probe() function.
-
-  2) Conversion thougths
-  ----------------------
-
-  Conversion of watchdog implementations to a new API could be divided
-  to three subsections: a) HW implementations, which are mostly compliant
-  to the above mentioned API; b) SW implementations, which are compliant
-  to the above mentioned API and c) SW implementations that are not compliant
-  to the API and has to be rectified or partially rewritten.
-
-III) Analysis of in-tree drivers
---------------------------------
-
-  drivers/watchdog/at91sam9_wdt.c
-  -------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  drivers/watchdog/ftwdt010_wdt.c
-  -------------------------------
-  The driver is ad-hoc HW watchdog. Conversion has to take into account
-  driver parts spread in include/faraday/*. Restructuring the driver and
-  code cleanup has to be considered.
-
-
-  arch/arm/cpu/arm1136/mx31/timer.c
-  ---------------------------------
-  The driver is semi-standard ad-hoc HW watchdog. Conversion has to take
-  into account driver parts spread in the timer.c file.
-
-
-  arch/arm/cpu/arm926ejs/davinci/timer.c
-  --------------------------------------
-  The driver is ad-hoc semi-standard HW watchdog. Conversion has to take
-  into account driver parts spread in the timer.c file.
-
-
-  arch/arm/cpu/armv7/omap-common/hwinit-common.c
-  ----------------------------------------------
-  The driver is non-standard ad-hoc HW watchdog. Conversion is possible
-  but functions has to be renamed and constants moved to another places.
-
-
-  arch/arm/cpu/armv7/omap3/board.c
-  --------------------------------
-  The driver is non-standard ad-hoc HW watchdog. Conversion is possible
-  but functions has to be renamed and constants moved to another places.
-
-
-  arch/blackfin/cpu/watchdog.c
-  ----------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/m68k/cpu/mcf523x/cpu.c
-  ---------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/m68k/cpu/mcf52x2/cpu.c
-  ---------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/m68k/cpu/mcf532x/cpu.c
-  ---------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/m68k/cpu/mcf547x_8x/cpu.c
-  ------------------------------
-  The driver is standard HW watchdog (there is slight naming convention
-  violation that has to be rectified). Simple conversion is possible.
-
-
-  arch/powerpc/cpu/74xx_7xx/cpu.c
-  -------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/powerpc/cpu/mpc512x/cpu.c
-  ------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/powerpc/cpu/mpc5xx/cpu.c
-  -----------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/powerpc/cpu/mpc5xxx/cpu.c
-  ------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/powerpc/cpu/mpc8260/cpu.c
-  ------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/powerpc/cpu/mpc83xx/cpu.c
-  ------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/powerpc/cpu/mpc85xx/cpu.c
-  ------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/powerpc/cpu/mpc86xx/cpu.c
-  ------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/powerpc/cpu/mpc8xx/cpu.c
-  -----------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/powerpc/cpu/ppc4xx/cpu.c
-  -----------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/sh/cpu/sh2/watchdog.c
-  --------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/sh/cpu/sh3/watchdog.c
-  --------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  arch/sh/cpu/sh4/watchdog.c
-  --------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/amcc/luan/luan.c
-  ----------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/amcc/yosemite/yosemite.c
-  ------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/apollon/apollon.c
-  -----------------------
-  The driver is standard HW watchdog however the watchdog_init()
-  function is called in early initialization. Simple conversion is possible.
-
-
-  board/bmw/m48t59y.c
-  -------------------
-  Special watchdog driver. Dead code. To be removed.
-
-
-  board/davedenx/qong/qong.c
-  --------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/dvlhost/watchdog.c
-  ------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/eNET/eNET.c
-  -----------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/eltec/elppc/elppc.c
-  -------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/enbw/enbw_cmc/enbw_cmc.c
-  ------------------------------
-  Only function proxy call. Code cleanup needed.
-
-
-  board/freescale/mx31pdk/mx31pdk.c
-  ---------------------------------
-  Only function proxy call. Code cleanup needed.
-
-
-  board/gth2/gth2.c
-  -----------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/lwmon5/lwmon5.c
-  ---------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/manroland/mucmc52/mucmc52.c
-  ---------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/manroland/uc101/uc101.c
-  -----------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/mousse/m48t59y.c
-  ----------------------
-  Special watchdog driver. Dead code. To be removed.
-
-
-  board/mvblue/mvblue.c
-  ---------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/netphone/netphone.c
-  -------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/netta/netta.c
-  -------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/netta2/netta2.c
-  ---------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/omicron/calimain/calimain.c
-  ---------------------------------
-  Only function proxy call. Code cleanup needed.
-
-
-  board/pcs440ep/pcs440ep.c
-  -------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/stx/stxxtc/stxxtc.c
-  -------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/ti/omap2420h4/omap2420h4.c
-  --------------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/ttcontrol/vision2/vision2.c
-  ---------------------------------
-  The driver is standard HW watchdog but namespace is polluted by
-  non-standard macros. Simple conversion is possible, code cleanup
-  needed.
-
-
-  board/v38b/v38b.c
-  -----------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/ve8313/ve8313.c
-  ---------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
-  board/w7o/watchdog.c
-  --------------------
-  The driver is standard HW watchdog. Simple conversion is possible.