Patch by Stefan Roese, 15 Jul 2004

[oweals/u-boot.git] / README

diff --git a/README b/README
index dc9d97590174ec555fd1fd658c28c7d826c1416c..0d6eac95f37f3a15acda1ad7a10a4b17fb3947ec 100644 (file)
--- a/README
+++ b/README
@@ -240,57 +240,69 @@ The following options need to be configured:
                CONFIG_ARM7
                CONFIG_PXA250
 
                CONFIG_ARM7
                CONFIG_PXA250
 

+               MicroBlaze based CPUs:
+               ----------------------
+               CONFIG_MICROBLAZE
+

 
 - Board Type:  Define exactly one of
 
                PowerPC based boards:
                ---------------------
 
 
 - Board Type:  Define exactly one of
 
                PowerPC based boards:
                ---------------------
 

-               CONFIG_ADCIOP,     CONFIG_ICU862      CONFIG_RPXsuper,
-               CONFIG_ADS860,     CONFIG_IP860,      CONFIG_SM850,
-               CONFIG_AMX860,     CONFIG_IPHASE4539, CONFIG_SPD823TS,
-               CONFIG_AR405,      CONFIG_IVML24,     CONFIG_SXNI855T,
-               CONFIG_BAB7xx,     CONFIG_IVML24_128, CONFIG_Sandpoint8240,
-               CONFIG_CANBT,      CONFIG_IVML24_256, CONFIG_Sandpoint8245,
-               CONFIG_CCM,        CONFIG_IVMS8,      CONFIG_TQM823L,
-               CONFIG_CPCI405,    CONFIG_IVMS8_128,  CONFIG_TQM850L,
-               CONFIG_CPCI4052,   CONFIG_IVMS8_256,  CONFIG_TQM855L,
-               CONFIG_CPCIISER4,  CONFIG_LANTEC,     CONFIG_TQM860L,
-               CONFIG_CPU86,      CONFIG_MBX,        CONFIG_TQM8260,
-               CONFIG_CRAYL1,     CONFIG_MBX860T,    CONFIG_TTTech,
-               CONFIG_CU824,      CONFIG_MHPC,       CONFIG_UTX8245,
-               CONFIG_DASA_SIM,   CONFIG_MIP405,     CONFIG_W7OLMC,
-               CONFIG_DU405,      CONFIG_MOUSSE,     CONFIG_W7OLMG,
-               CONFIG_ELPPC,      CONFIG_MPC8260ADS, CONFIG_WALNUT405,
-               CONFIG_ERIC,       CONFIG_MUSENKI,    CONFIG_ZUMA,
-               CONFIG_ESTEEM192E, CONFIG_MVS1,       CONFIG_c2mon,
-               CONFIG_ETX094,     CONFIG_NX823,      CONFIG_cogent_mpc8260,
-               CONFIG_EVB64260,   CONFIG_OCRTC,      CONFIG_cogent_mpc8xx,
-               CONFIG_FADS823,    CONFIG_ORSG,       CONFIG_ep8260,
-               CONFIG_FADS850SAR, CONFIG_OXC,        CONFIG_gw8260,
-               CONFIG_FADS860T,   CONFIG_PCI405,     CONFIG_hermes,
-               CONFIG_FLAGADM,    CONFIG_PCIPPC2,    CONFIG_hymod,
-               CONFIG_FPS850L,    CONFIG_PCIPPC6,    CONFIG_lwmon,
-               CONFIG_GEN860T,    CONFIG_PIP405,     CONFIG_pcu_e,
-               CONFIG_GENIETV,    CONFIG_PM826,      CONFIG_ppmc8260,
-               CONFIG_GTH,        CONFIG_RPXClassic, CONFIG_rsdproto,
-               CONFIG_IAD210,     CONFIG_RPXlite,    CONFIG_sbc8260,
-               CONFIG_EBONY,      CONFIG_sacsng,     CONFIG_FPS860L,
-               CONFIG_V37,        CONFIG_ELPT860,    CONFIG_CMI,
-               CONFIG_NETVIA,     CONFIG_RBC823,     CONFIG_ZPC1900,
-               CONFIG_MPC8540ADS, CONFIG_MPC8560ADS, CONFIG_QS850,
-               CONFIG_QS823,      CONFIG_QS860T,     CONFIG_DB64360,
-               CONFIG_DB64460,    CONFIG_DUET_ADS
+               CONFIG_ADCIOP           CONFIG_GEN860T          CONFIG_PCI405
+               CONFIG_ADS860           CONFIG_GENIETV          CONFIG_PCIPPC2
+               CONFIG_AMX860           CONFIG_GTH              CONFIG_PCIPPC6
+               CONFIG_AR405            CONFIG_gw8260           CONFIG_pcu_e
+               CONFIG_BAB7xx           CONFIG_hermes           CONFIG_PIP405
+               CONFIG_c2mon            CONFIG_hymod            CONFIG_PM826
+               CONFIG_CANBT            CONFIG_IAD210           CONFIG_ppmc8260
+               CONFIG_CCM              CONFIG_ICU862           CONFIG_QS823
+               CONFIG_CMI              CONFIG_IP860            CONFIG_QS850
+               CONFIG_cogent_mpc8260   CONFIG_IPHASE4539       CONFIG_QS860T
+               CONFIG_cogent_mpc8xx    CONFIG_IVML24           CONFIG_RBC823
+               CONFIG_CPCI405          CONFIG_IVML24_128       CONFIG_RPXClassic
+               CONFIG_CPCI4052         CONFIG_IVML24_256       CONFIG_RPXlite
+               CONFIG_CPCIISER4        CONFIG_IVMS8            CONFIG_RPXsuper
+               CONFIG_CPU86            CONFIG_IVMS8_128        CONFIG_rsdproto
+               CONFIG_CRAYL1           CONFIG_IVMS8_256        CONFIG_sacsng
+               CONFIG_CSB272           CONFIG_JSE              CONFIG_Sandpoint8240
+               CONFIG_CU824            CONFIG_LANTEC           CONFIG_Sandpoint8245
+               CONFIG_DASA_SIM         CONFIG_lwmon            CONFIG_sbc8260
+               CONFIG_DB64360          CONFIG_MBX              CONFIG_sbc8560
+               CONFIG_DB64460          CONFIG_MBX860T          CONFIG_SM850
+               CONFIG_DU405            CONFIG_MHPC             CONFIG_SPD823TS
+               CONFIG_DUET_ADS         CONFIG_MIP405           CONFIG_STXGP3
+               CONFIG_EBONY            CONFIG_MOUSSE           CONFIG_SXNI855T
+               CONFIG_ELPPC            CONFIG_MPC8260ADS       CONFIG_TQM823L
+               CONFIG_ELPT860          CONFIG_MPC8540ADS       CONFIG_TQM8260
+               CONFIG_ep8260           CONFIG_MPC8560ADS       CONFIG_TQM850L
+               CONFIG_ERIC             CONFIG_MUSENKI          CONFIG_TQM855L
+               CONFIG_ESTEEM192E       CONFIG_MVS1             CONFIG_TQM860L
+               CONFIG_ETX094           CONFIG_NETPHONE         CONFIG_TTTech
+               CONFIG_EVB64260         CONFIG_NETTA            CONFIG_UTX8245
+               CONFIG_FADS823          CONFIG_NETVIA           CONFIG_V37
+               CONFIG_FADS850SAR       CONFIG_NX823            CONFIG_W7OLMC
+               CONFIG_FADS860T         CONFIG_OCRTC            CONFIG_W7OLMG
+               CONFIG_FLAGADM          CONFIG_ORSG             CONFIG_WALNUT405
+               CONFIG_FPS850L          CONFIG_OXC              CONFIG_ZPC1900
+               CONFIG_FPS860L                                  CONFIG_ZUMA

 
                ARM based boards:
                -----------------
 
 
                ARM based boards:
                -----------------
 

-               CONFIG_HHP_CRADLE,  CONFIG_DNP1110,     CONFIG_EP7312,
-               CONFIG_IMPA7,       CONFIG_LART,        CONFIG_LUBBOCK,
-               CONFIG_INNOVATOROMAP1510,      CONFIG_INNOVATOROMAP1610,
-               CONFIG_H2_OMAP1610, CONFIG_SHANNON,     CONFIG_SMDK2400,
-               CONFIG_SMDK2410,    CONFIG_TRAB,        CONFIG_VCMA9,
-               CONFIG_AT91RM9200DK
+               CONFIG_AT91RM9200DK,            CONFIG_CERF250,         CONFIG_DNP1110,
+               CONFIG_EP7312,                  CONFIG_H2_OMAP1610,     CONFIG_HHP_CRADLE,
+               CONFIG_IMPA7,           CONFIG_INNOVATOROMAP1510,       CONFIG_INNOVATOROMAP1610,
+               CONFIG_LART,                    CONFIG_LPD7A400         CONFIG_LUBBOCK,
+               CONFIG_OSK_OMAP5912,            CONFIG_SHANNON,         CONFIG_P2_OMAP730,
+               CONFIG_SMDK2400,                CONFIG_SMDK2410,        CONFIG_TRAB,
+               CONFIG_VCMA9
+
+               MicroBlaze based boards:
+               ------------------------
+
+               CONFIG_SUZAKU

 
 
 - CPU Module Type: (if CONFIG_COGENT is defined)
 
 
 - CPU Module Type: (if CONFIG_COGENT is defined)


@@ -320,7 +332,7 @@ The following options need to be configured:
                        CFG_8260ADS     - original MPC8260ADS
                        CFG_8266ADS     - MPC8266ADS
                        CFG_PQ2FADS     - PQ2FADS-ZU or PQ2FADS-VR
                        CFG_8260ADS     - original MPC8260ADS
                        CFG_8266ADS     - MPC8266ADS
                        CFG_PQ2FADS     - PQ2FADS-ZU or PQ2FADS-VR

-
+                       CFG_8272ADS     - MPC8272ADS

 
 - MPC824X Family Member (if CONFIG_MPC824X is defined)
                Define exactly one of
 
 - MPC824X Family Member (if CONFIG_MPC824X is defined)
                Define exactly one of


@@ -441,8 +453,8 @@ The following options need to be configured:
                (RTS/CTS) and UART's built-in FIFO. Set the number of
                bytes the interrupt driven input buffer should have.
 
                (RTS/CTS) and UART's built-in FIFO. Set the number of
                bytes the interrupt driven input buffer should have.
 

-               Set to 0 to disable this feature (this is the default).
-               This will also disable hardware handshake.
+               Leave undefined to disable this feature, including
+               disable the buffer and hardware handshake.

 
 - Console UART Number:
                CONFIG_UART1_CONSOLE
 
 - Console UART Number:
                CONFIG_UART1_CONSOLE


@@ -561,7 +573,7 @@ The following options need to be configured:
                CFG_CMD_LOADB     loadb
                CFG_CMD_LOADS     loads
                CFG_CMD_MEMORY    md, mm, nm, mw, cp, cmp, crc, base,
                CFG_CMD_LOADB     loadb
                CFG_CMD_LOADS     loads
                CFG_CMD_MEMORY    md, mm, nm, mw, cp, cmp, crc, base,

-                                 loop, mtest
+                                 loop, loopw, mtest

                CFG_CMD_MISC      Misc functions like sleep etc
                CFG_CMD_MMC       MMC memory mapped support
                CFG_CMD_MII       MII utility commands
                CFG_CMD_MISC      Misc functions like sleep etc
                CFG_CMD_MMC       MMC memory mapped support
                CFG_CMD_MII       MII utility commands


@@ -581,16 +593,17 @@ The following options need to be configured:
                CFG_CMD_USB     * USB support
                CFG_CMD_VFD     * VFD support (TRAB)
                CFG_CMD_BSP     * Board SPecific functions
                CFG_CMD_USB     * USB support
                CFG_CMD_VFD     * VFD support (TRAB)
                CFG_CMD_BSP     * Board SPecific functions

+               CFG_CMD_CDP     * Cisco Discover Protocol support

                -----------------------------------------------
                CFG_CMD_ALL     all
 
                -----------------------------------------------
                CFG_CMD_ALL     all
 

-               CFG_CMD_DFL     Default configuration; at the moment
+               CONFIG_CMD_DFL  Default configuration; at the moment

                                this is includes all commands, except
                                the ones marked with "*" in the list
                                above.
 
                If you don't define CONFIG_COMMANDS it defaults to
                                this is includes all commands, except
                                the ones marked with "*" in the list
                                above.
 
                If you don't define CONFIG_COMMANDS it defaults to

-               CFG_CMD_DFL in include/cmd_confdefs.h. A board can
+               CONFIG_CMD_DFL in include/cmd_confdefs.h. A board can

                override the default settings in the respective
                include file.
 
                override the default settings in the respective
                include file.
 


@@ -640,6 +653,7 @@ The following options need to be configured:
                CONFIG_RTC_DS1337       - use Maxim, Inc. DS1337 RTC
                CONFIG_RTC_DS1338       - use Maxim, Inc. DS1338 RTC
                CONFIG_RTC_DS164x       - use Dallas DS164x RTC
                CONFIG_RTC_DS1337       - use Maxim, Inc. DS1337 RTC
                CONFIG_RTC_DS1338       - use Maxim, Inc. DS1338 RTC
                CONFIG_RTC_DS164x       - use Dallas DS164x RTC

+               CONFIG_RTC_MAX6900      - use Maxim, Inc. MAX6900 RTC

 
                Note that if the RTC uses I2C, then the I2C interface
                must also be configured. See I2C Support, below.
 
                Note that if the RTC uses I2C, then the I2C interface
                must also be configured. See I2C Support, below.


@@ -660,16 +674,31 @@ The following options need to be configured:
                one partition type as well.
 
 - IDE Reset method:
                one partition type as well.
 
 - IDE Reset method:

-               CONFIG_IDE_RESET_ROUTINE
+               CONFIG_IDE_RESET_ROUTINE - this is defined in several
+               board configurations files but used nowhere!

 
 

-               Set this to define that instead of a reset Pin, the
-               routine ide_set_reset(int idereset) will be used.
+               CONFIG_IDE_RESET - is this is defined, IDE Reset will
+               be performed by calling the function
+                       ide_set_reset(int reset)
+               which has to be defined in a board specific file

 
 - ATAPI Support:
                CONFIG_ATAPI
 
                Set this to enable ATAPI support.
 
 
 - ATAPI Support:
                CONFIG_ATAPI
 
                Set this to enable ATAPI support.
 

+- LBA48 Support
+               CONFIG_LBA48
+
+               Set this to enable support for disks larger than 137GB
+               Also look at CFG_64BIT_LBA ,CFG_64BIT_VSPRINTF and CFG_64BIT_STRTOUL
+               Whithout these , LBA48 support uses 32bit variables and will 'only'
+               support disks up to 2.1TB.
+
+               CFG_64BIT_LBA:
+                       When enabled, makes the IDE subsystem use 64bit sector addresses.
+                       Default is 32bit.
+

 - SCSI Support:
                At the moment only there is only support for the
                SYM53C8XX SCSI controller; define
 - SCSI Support:
                At the moment only there is only support for the
                SYM53C8XX SCSI controller; define


@@ -714,9 +743,23 @@ The following options need to be configured:
                        CONFIG_LAN91C96_USE_32_BIT
                        Define this to enable 32 bit addressing
 
                        CONFIG_LAN91C96_USE_32_BIT
                        Define this to enable 32 bit addressing
 

+               CONFIG_DRIVER_SMC91111
+               Support for SMSC's LAN91C111 chip
+
+                       CONFIG_SMC91111_BASE
+                       Define this to hold the physical address
+                       of the device (I/O space)
+
+                       CONFIG_SMC_USE_32_BIT
+                       Define this if data bus is 32 bits
+
+                       CONFIG_SMC_USE_IOFUNCS
+                       Define this to use i/o functions instead of macros
+                       (some hardware wont work with macros)
+

 - USB Support:
                At the moment only the UHCI host controller is
 - USB Support:
                At the moment only the UHCI host controller is

-               supported (PIP405, MIP405); define
+               supported (PIP405, MIP405, MPC5200); define

                CONFIG_USB_UHCI to enable it.
                define CONFIG_USB_KEYBOARD to enable the USB Keyboard
                end define CONFIG_USB_STORAGE to enable the USB
                CONFIG_USB_UHCI to enable it.
                define CONFIG_USB_KEYBOARD to enable the USB Keyboard
                end define CONFIG_USB_STORAGE to enable the USB


@@ -724,6 +767,13 @@ The following options need to be configured:
                Note:
                Supported are USB Keyboards and USB Floppy drives
                (TEAC FD-05PUB).
                Note:
                Supported are USB Keyboards and USB Floppy drives
                (TEAC FD-05PUB).

+               MPC5200 USB requires additional defines:
+                       CONFIG_USB_CLOCK
+                               for 528 MHz Clock: 0x0001bbbb
+                       CONFIG_USB_CONFIG
+                               for differential drivers: 0x00001000
+                               for single ended drivers: 0x00005000
+

 
 - MMC Support:
                The MMC controller on the Intel PXA is supported. To
 
 - MMC Support:
                The MMC controller on the Intel PXA is supported. To


@@ -756,17 +806,30 @@ The following options need to be configured:
                Enable Chips & Technologies 69000 Video chip
 
                CONFIG_VIDEO_SMI_LYNXEM
                Enable Chips & Technologies 69000 Video chip
 
                CONFIG_VIDEO_SMI_LYNXEM

-               Enable Silicon Motion SMI 712/710/810 Video chip
-               Videomode are selected via environment 'videomode' with
-               standard LiLo mode numbers.
-               Following modes are supported  (* is default):
-
-                           800x600  1024x768  1280x1024
-             256  (8bit)     303*      305       307
-           65536 (16bit)     314       317       31a
-       16,7 Mill (24bit)     315       318       31b
+               Enable Silicon Motion SMI 712/710/810 Video chip. The
+               video output is selected via environment 'videoout'
+               (1 = LCD and 2 = CRT). If videoout is undefined, CRT is
+               assumed.
+
+               For the CT69000 and SMI_LYNXEM drivers, videomode is
+               selected via environment 'videomode'. Two diferent ways
+               are possible:
+               - "videomode=num"   'num' is a standard LiLo mode numbers.
+               Following standard modes are supported  (* is default):
+
+                     Colors    640x480 800x600 1024x768 1152x864 1280x1024
+               -------------+---------------------------------------------
+                     8 bits |  0x301*  0x303    0x305    0x161     0x307
+                    15 bits |  0x310   0x313    0x316    0x162     0x319
+                    16 bits |  0x311   0x314    0x317    0x163     0x31A
+                    24 bits |  0x312   0x315    0x318      ?       0x31B
+               -------------+---------------------------------------------

                (i.e. setenv videomode 317; saveenv; reset;)
 
                (i.e. setenv videomode 317; saveenv; reset;)
 

+               - "videomode=bootargs" all the video parameters are parsed
+               from the bootargs. (See drivers/videomodes.c)
+
+

                CONFIG_VIDEO_SED13806
                Enable Epson SED13806 driver. This driver supports 8bpp
                and 16bpp modes defined by CONFIG_VIDEO_SED13806_8BPP
                CONFIG_VIDEO_SED13806
                Enable Epson SED13806 driver. This driver supports 8bpp
                and 16bpp modes defined by CONFIG_VIDEO_SED13806_8BPP


@@ -833,7 +896,7 @@ The following options need to be configured:
                If this option is set, the environment is checked for
                a variable "splashimage". If found, the usual display
                of logo, copyright and system information on the LCD
                If this option is set, the environment is checked for
                a variable "splashimage". If found, the usual display
                of logo, copyright and system information on the LCD

-               is supressed and the BMP image at the address
+               is suppressed and the BMP image at the address

                specified in "splashimage" is loaded instead. The
                console is redirected to the "nulldev", too. This
                allows for a "silent" boot where a splash screen is
                specified in "splashimage" is loaded instead. The
                console is redirected to the "nulldev", too. This
                allows for a "silent" boot where a splash screen is


@@ -850,6 +913,32 @@ The following options need to be configured:
                the malloc area (as defined by CFG_MALLOC_LEN) should
                be at least 4MB.
 
                the malloc area (as defined by CFG_MALLOC_LEN) should
                be at least 4MB.
 

+- MII/PHY support:
+               CONFIG_PHY_ADDR
+
+               The address of PHY on MII bus.
+
+               CONFIG_PHY_CLOCK_FREQ (ppc4xx)
+
+               The clock frequency of the MII bus
+
+               CONFIG_PHY_GIGE
+
+               If this option is set, support for speed/duplex
+               detection of Gigabit PHY is included.
+
+               CONFIG_PHY_RESET_DELAY
+
+               Some PHY like Intel LXT971A need extra delay after
+               reset before any MII register access is possible.
+               For such PHY, set this option to the usec delay
+               required. (minimum 300usec for LXT971A)
+
+               CONFIG_PHY_CMD_DELAY (ppc4xx)
+
+               Some PHY like Intel LXT971A need extra delay after
+               command issued before MII status register can be read
+

 - Ethernet address:
                CONFIG_ETHADDR
                CONFIG_ETH2ADDR
 - Ethernet address:
                CONFIG_ETHADDR
                CONFIG_ETH2ADDR


@@ -914,6 +1003,48 @@ The following options need to be configured:
                environment variable is passed as option 12 to
                the DHCP server.
 
                environment variable is passed as option 12 to
                the DHCP server.
 

+ - CDP Options:
+               CONFIG_CDP_DEVICE_ID
+
+               The device id used in CDP trigger frames.
+
+               CONFIG_CDP_DEVICE_ID_PREFIX
+
+               A two character string which is prefixed to the MAC address
+               of the device.
+
+               CONFIG_CDP_PORT_ID
+
+               A printf format string which contains the ascii name of
+               the port. Normally is set to "eth%d" which sets
+               eth0 for the first ethernet, eth1 for the second etc.
+
+               CONFIG_CDP_CAPABILITIES
+
+               A 32bit integer which indicates the device capabilities;
+               0x00000010 for a normal host which does not forwards.
+
+               CONFIG_CDP_VERSION
+
+               An ascii string containing the version of the software.
+
+               CONFIG_CDP_PLATFORM
+
+               An ascii string containing the name of the platform.
+
+               CONFIG_CDP_TRIGGER
+
+               A 32bit integer sent on the trigger.
+
+               CONFIG_CDP_POWER_CONSUMPTION
+
+               A 16bit integer containing the power consumption of the
+               device in .1 of milliwatts.
+
+               CONFIG_CDP_APPLIANCE_VLAN_TYPE
+
+               A byte containing the id of the VLAN.
+

 - Status LED:  CONFIG_STATUS_LED
 
                Several configurations allow to display the current
 - Status LED:  CONFIG_STATUS_LED
 
                Several configurations allow to display the current


@@ -1042,6 +1173,12 @@ The following options need to be configured:
                custom i2c_init_board() routine in boards/xxx/board.c
                is run early in the boot sequence.
 
                custom i2c_init_board() routine in boards/xxx/board.c
                is run early in the boot sequence.
 

+               CONFIG_I2CFAST (PPC405GP|PPC405EP only)
+
+               This option enables configuration of bi_iic_fast[] flags
+               in u-boot bd_info structure based on u-boot environment
+               variable "i2cfast". (see also i2cfast)
+

 - SPI Support: CONFIG_SPI
 
                Enables SPI driver (so far only tested with
 - SPI Support: CONFIG_SPI
 
                Enables SPI driver (so far only tested with


@@ -1196,6 +1333,10 @@ The following options need to be configured:
                default value of 5 is used.
 
 - Command Interpreter:
                default value of 5 is used.
 
 - Command Interpreter:

+               CFG_AUTO_COMPLETE
+
+               Enable auto completion of commands using TAB.
+

                CFG_HUSH_PARSER
 
                Define this variable to enable the "hush" shell (from
                CFG_HUSH_PARSER
 
                Define this variable to enable the "hush" shell (from


@@ -1660,6 +1801,17 @@ to save the current settings.
          The length in bytes of the EEPROM memory array address.  Note
          that this is NOT the chip address length!
 
          The length in bytes of the EEPROM memory array address.  Note
          that this is NOT the chip address length!
 

+       - CFG_I2C_EEPROM_ADDR_OVERFLOW:
+         EEPROM chips that implement "address overflow" are ones
+         like Catalyst 24WC04/08/16 which has 9/10/11 bits of
+         address and the extra bits end up in the "chip address" bit
+         slots. This makes a 24WC08 (1Kbyte) chip look like four 256
+         byte chips.
+
+         Note that we consider the length of the address field to
+         still be one byte because the extra address bits are hidden
+         in the chip address.
+

        - CFG_EEPROM_SIZE:
          The size in bytes of the EEPROM device.
 
        - CFG_EEPROM_SIZE:
          The size in bytes of the EEPROM device.
 


@@ -1677,6 +1829,16 @@ to save the current settings.
          environment area within the total memory of your DataFlash placed
          at the specified address.
 
          environment area within the total memory of your DataFlash placed
          at the specified address.
 

+- CFG_ENV_IS_IN_NAND:
+
+       Define this if you have a NAND device which you want to use
+       for the environment.
+
+       - CFG_ENV_OFFSET:
+       - CFG_ENV_SIZE:
+
+         These two #defines specify the offset and size of the environment
+         area within the first NAND device.

 
 - CFG_SPI_INIT_OFFSET
 
 
 - CFG_SPI_INIT_OFFSET
 


@@ -1713,6 +1875,13 @@ use the "saveenv" command to store a valid environment.
 - CFG_FAULT_MII_ADDR:
                MII address of the PHY to check for the Ethernet link state.
 
 - CFG_FAULT_MII_ADDR:
                MII address of the PHY to check for the Ethernet link state.
 

+- CFG_64BIT_VSPRINTF:
+               Makes vsprintf (and all *printf functions) support printing
+               of 64bit values by using the L quantifier
+
+- CFG_64BIT_STRTOUL:
+               Adds simple_strtoull that returns a 64bit value
+

 Low Level (hardware related) configuration options:
 ---------------------------------------------------
 
 Low Level (hardware related) configuration options:
 ---------------------------------------------------
 


@@ -1854,6 +2023,40 @@ Low Level (hardware related) configuration options:
   CFG_POCMR2_MASK_ATTRIB: (MPC826x only)
                Overrides the default PCI memory map in cpu/mpc8260/pci.c if set.
 
   CFG_POCMR2_MASK_ATTRIB: (MPC826x only)
                Overrides the default PCI memory map in cpu/mpc8260/pci.c if set.
 

+- CONFIG_ETHER_ON_FEC[12]
+               Define to enable FEC[12] on a 8xx series processor.
+
+- CONFIG_FEC[12]_PHY
+               Define to the hardcoded PHY address which corresponds
+               to the given FEC; i. e.
+                       #define CONFIG_FEC1_PHY 4
+               means that the PHY with address 4 is connected to FEC1
+
+               When set to -1, means to probe for first available.
+
+- CONFIG_FEC[12]_PHY_NORXERR
+               The PHY does not have a RXERR line (RMII only).
+               (so program the FEC to ignore it).
+
+- CONFIG_RMII
+               Enable RMII mode for all FECs.
+               Note that this is a global option, we can't
+               have one FEC in standard MII mode and another in RMII mode.
+
+- CONFIG_CRC32_VERIFY
+               Add a verify option to the crc32 command.
+               The syntax is:
+
+               => crc32 -v <address> <count> <crc32>
+
+               Where address/count indicate a memory area
+               and crc32 is the correct crc32 which the
+               area should have.
+
+- CONFIG_LOOPW
+               Add the "loopw" memory command. This only takes effect if
+               the memory commands are activated globally (CFG_CMD_MEM).
+

 Building the Software:
 ======================
 
 Building the Software:
 ======================
 


@@ -1881,54 +2084,43 @@ is done by typing:
 where "NAME_config" is the name of one of the existing
 configurations; the following names are supported:
 
 where "NAME_config" is the name of one of the existing
 configurations; the following names are supported:
 

-    ADCIOP_config        GTH_config            TQM850L_config
-    ADS860_config        IP860_config          TQM855L_config
-    AR405_config         IVML24_config         TQM860L_config
-    CANBT_config         IVMS8_config          WALNUT405_config
-    CPCI405_config       LANTEC_config         cogent_common_config
-    CPCIISER4_config     MBX_config            cogent_mpc8260_config
-    CU824_config         MBX860T_config        cogent_mpc8xx_config
-    ESTEEM192E_config    RPXlite_config        hermes_config
-    ETX094_config        RPXsuper_config       hymod_config
-    FADS823_config       SM850_config          lwmon_config
-    FADS850SAR_config    SPD823TS_config       pcu_e_config
-    FADS860T_config      SXNI855T_config       rsdproto_config
-    FPS850L_config       Sandpoint8240_config  sbc8260_config
-    GENIETV_config       TQM823L_config        PIP405_config
-    GEN860T_config       EBONY_config          FPS860L_config
-    ELPT860_config       cmi_mpc5xx_config     NETVIA_config
-    at91rm9200dk_config          omap1510inn_config    MPC8260ADS_config
-    omap1610inn_config   ZPC1900_config        MPC8540ADS_config
-    MPC8560ADS_config    QS850_config          QS823_config
-    QS860T_config        DUET_ADS_config       omap1610h2_config
-
-Note: for some board special configuration names may exist; check  if
-      additional  information is available from the board vendor; for
-      instance, the TQM8xxL systems run normally at 50 MHz and use  a
-      SCC  for 10baseT  ethernet; there are also systems with 80 MHz
-      CPU clock, and an optional Fast Ethernet module  is  available
-      for  CPU's  with FEC. You can select such additional "features"
+       ADCIOP_config           FPS860L_config          omap730p2_config
+       ADS860_config           GEN860T_config          pcu_e_config
+       AR405_config            GENIETV_config          PIP405_config
+       at91rm9200dk_config     GTH_config              QS823_config
+       CANBT_config            hermes_config           QS850_config
+       cmi_mpc5xx_config       hymod_config            QS860T_config
+       cogent_common_config    IP860_config            RPXlite_config
+       cogent_mpc8260_config   IVML24_config           RPXlite_DW_config
+       cogent_mpc8xx_config    IVMS8_config            RPXsuper_config
+       CPCI405_config          JSE_config              rsdproto_config
+       CPCIISER4_config        LANTEC_config           Sandpoint8240_config
+       csb272_config           lwmon_config            sbc8260_config
+       CU824_config            MBX860T_config          sbc8560_33_config
+       DUET_ADS_config         MBX_config              sbc8560_66_config
+       EBONY_config            MPC8260ADS_config       SM850_config
+       ELPT860_config          MPC8540ADS_config       SPD823TS_config
+       ESTEEM192E_config       MPC8560ADS_config       stxgp3_config
+       ETX094_config           NETVIA_config           SXNI855T_config
+       FADS823_config          omap1510inn_config      TQM823L_config
+       FADS850SAR_config       omap1610h2_config       TQM850L_config
+       FADS860T_config         omap1610inn_config      TQM855L_config
+       FPS850L_config          omap5912osk_config      TQM860L_config
+                                                       WALNUT405_config
+                                                       ZPC1900_config
+
+Note: for some board special configuration names may exist; check if
+      additional information is available from the board vendor; for
+      instance, the TQM823L systems are available without (standard)
+      or with LCD support. You can select such additional "features"

       when chosing the configuration, i. e.
 
       when chosing the configuration, i. e.
 

-      make TQM860L_config
-       - will configure for a plain TQM860L, i. e. 50MHz, no FEC
-
-      make TQM860L_FEC_config
-       - will configure for a TQM860L at 50MHz with FEC for ethernet
-
-      make TQM860L_80MHz_config
-       - will configure for a TQM860L at 80 MHz, with normal 10baseT
-         interface
-
-      make TQM860L_FEC_80MHz_config
-       - will configure for a TQM860L at 80 MHz with FEC for ethernet
+      make TQM823L_config
+       - will configure for a plain TQM823L, i. e. no LCD support

 
       make TQM823L_LCD_config
        - will configure for a TQM823L with U-Boot console on LCD
 
 
       make TQM823L_LCD_config
        - will configure for a TQM823L with U-Boot console on LCD
 

-      make TQM823L_LCD_80MHz_config
-       - will configure for a TQM823L at 80 MHz with U-Boot console on LCD
-

       etc.
 
 
       etc.
 
 


@@ -2037,6 +2229,7 @@ iminfo    - print header information for application image
 coninfo - print console devices and informations
 ide    - IDE sub-system
 loop   - infinite loop on address range
 coninfo - print console devices and informations
 ide    - IDE sub-system
 loop   - infinite loop on address range

+loopw  - infinite write loop on address range

 mtest  - simple RAM test
 icache - enable or disable instruction cache
 dcache - enable or disable data cache
 mtest  - simple RAM test
 icache - enable or disable instruction cache
 dcache - enable or disable data cache


@@ -2096,6 +2289,12 @@ Some configuration options can be set using Environment Variables:
                  This can be used to load and uncompress arbitrary
                  data.
 
                  This can be used to load and uncompress arbitrary
                  data.
 

+  i2cfast      - (PPC405GP|PPC405EP only)
+                 if set to 'y' configures Linux I2C driver for fast
+                 mode (400kHZ). This environment variable is used in
+                 initialization code. So, for changes to be effective
+                 it must be saved and board must be reset.
+

   initrd_high  - restrict positioning of initrd images:
                  If this variable is not set, initrd images will be
                  copied to the highest possible address in RAM; this
   initrd_high  - restrict positioning of initrd images:
                  If this variable is not set, initrd images will be
                  copied to the highest possible address in RAM; this


@@ -2140,6 +2339,29 @@ Some configuration options can be set using Environment Variables:
 
   bootstopkey  - see CONFIG_AUTOBOOT_STOP_STR
 
 
   bootstopkey  - see CONFIG_AUTOBOOT_STOP_STR
 

+  ethprime     - When CONFIG_NET_MULTI is enabled controls which
+                 interface is used first.
+
+  ethact       - When CONFIG_NET_MULTI is enabled controls which
+                 interface is currently active. For example you
+                 can do the following
+
+                 => setenv ethact FEC ETHERNET
+                 => ping 192.168.0.1 # traffic sent on FEC ETHERNET
+                 => setenv ethact SCC ETHERNET
+                 => ping 10.0.0.1 # traffic sent on SCC ETHERNET
+
+   netretry    - When set to "no" each network operation will
+                 either succeed or fail without retrying.
+                 When set to "once" the network operation will
+                 fail when all the available network interfaces
+                 are tried once without success.
+                 Useful on scripts which control the retry operation
+                 themselves.
+
+   vlan                - When set to a value < 4095 the traffic over
+                 ethernet is encapsulated/received over 802.1q
+                 VLAN tagged frames.

 
 The following environment variables may be used and automatically
 updated by the network boot commands ("bootp" and "rarpboot"),
 
 The following environment variables may be used and automatically
 updated by the network boot commands ("bootp" and "rarpboot"),


@@ -2406,8 +2628,9 @@ from a "data file" which is used as image payload:
          -n ==> set image name to 'name'
          -d ==> use image data from 'datafile'
 
          -n ==> set image name to 'name'
          -d ==> use image data from 'datafile'
 

-Right now, all Linux kernels use the same load address (0x00000000),
-but the entry point address depends on the kernel version:
+Right now, all Linux kernels for PowerPC systems use the same load
+address (0x00000000), but the entry point address depends on the
+kernel version:

 
 - 2.2.x kernels have the entry point at 0x0000000C,
 - 2.3.x and later kernels have the entry point at 0x00000000.
 
 - 2.2.x kernels have the entry point at 0x0000000C,
 - 2.3.x and later kernels have the entry point at 0x00000000.