#
-# (C) Copyright 2000 - 2004
+# (C) Copyright 2000 - 2005
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
========
This directory contains the source code for U-Boot, a boot loader for
-Embedded boards based on PowerPC and ARM processors, which can be
-installed in a boot ROM and used to initialize and test the hardware
-or to download and run application code.
+Embedded boards based on PowerPC, ARM, MIPS and several other
+processors, which can be installed in a boot ROM and used to
+initialize and test the hardware or to download and run application
+code.
The development of U-Boot is closely related to Linux: some parts of
the source code originate in the Linux source tree, we have some
- board Board dependent files
- common Misc architecture independent functions
- cpu CPU specific files
- - 74xx_7xx Files specific to Motorola MPC74xx and 7xx CPUs
+ - 74xx_7xx Files specific to Freescale MPC74xx and 7xx CPUs
- arm720t Files specific to ARM 720 CPUs
- arm920t Files specific to ARM 920 CPUs
+ - at91rm9200 Files specific to Atmel AT91RM9200 CPU
+ - imx Files specific to Freescale MC9328 i.MX CPUs
+ - s3c24x0 Files specific to Samsung S3C24X0 CPUs
- arm925t Files specific to ARM 925 CPUs
- arm926ejs Files specific to ARM 926 CPUs
- - at91rm9200 Files specific to Atmel AT91RM9200 CPUs
+ - arm1136 Files specific to ARM 1136 CPUs
- i386 Files specific to i386 CPUs
- ixp Files specific to Intel XScale IXP CPUs
- - mcf52x2 Files specific to Motorola ColdFire MCF52x2 CPUs
+ - mcf52x2 Files specific to Freescale ColdFire MCF52x2 CPUs
- mips Files specific to MIPS CPUs
- - mpc5xx Files specific to Motorola MPC5xx CPUs
- - mpc5xxx Files specific to Motorola MPC5xxx CPUs
- - mpc8xx Files specific to Motorola MPC8xx CPUs
- - mpc824x Files specific to Motorola MPC824x CPUs
- - mpc8260 Files specific to Motorola MPC8260 CPUs
- - mpc85xx Files specific to Motorola MPC85xx CPUs
+ - mpc5xx Files specific to Freescale MPC5xx CPUs
+ - mpc5xxx Files specific to Freescale MPC5xxx CPUs
+ - mpc8xx Files specific to Freescale MPC8xx CPUs
+ - mpc8220 Files specific to Freescale MPC8220 CPUs
+ - mpc824x Files specific to Freescale MPC824x CPUs
+ - mpc8260 Files specific to Freescale MPC8260 CPUs
+ - mpc85xx Files specific to Freescale MPC85xx CPUs
- nios Files specific to Altera NIOS CPUs
+ - nios2 Files specific to Altera Nios-II CPUs
- ppc4xx Files specific to IBM PowerPC 4xx CPUs
- pxa Files specific to Intel XScale PXA CPUs
- s3c44b0 Files specific to Samsung S3C44B0 CPUs
-------------------
CONFIG_MPC823, CONFIG_MPC850, CONFIG_MPC855, CONFIG_MPC860
or CONFIG_MPC5xx
+ or CONFIG_MPC8220
or CONFIG_MPC824X, CONFIG_MPC8260
or CONFIG_MPC85xx
or CONFIG_IOP480
CONFIG_ARM7
CONFIG_PXA250
+ MicroBlaze based CPUs:
+ ----------------------
+ CONFIG_MICROBLAZE
+
+ Nios-2 based CPUs:
+ ----------------------
+ CONFIG_NIOS2
+
- 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_NETTA
- CONFIG_NETPHONE
+ 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:
-----------------
- 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_OMAP2420H4, CONFIG_SHANNON,
+ CONFIG_P2_OMAP730, CONFIG_SMDK2400, CONFIG_SMDK2410,
+ CONFIG_TRAB, CONFIG_VCMA9
+
+ MicroBlaze based boards:
+ ------------------------
+
+ CONFIG_SUZAKU
+
+ Nios-2 based boards:
+ ------------------------
+
+ CONFIG_PCI5441 CONFIG_PK1C20
- CPU Module Type: (if CONFIG_COGENT is defined)
CONFIG_MPC8240, CONFIG_MPC8245
- 8xx CPU Options: (if using an MPC8xx cpu)
- Define one or more of
- CONFIG_8xx_GCLK_FREQ - if get_gclk_freq() cannot work
+ CONFIG_8xx_GCLK_FREQ - deprecated: CPU clock if
+ get_gclk_freq() cannot work
e.g. if there is no 32KHz
reference PIT/RTC clock
+ CONFIG_8xx_OSCLK - PLL input clock (either EXTCLK
+ or XTAL/EXTAL)
-- 859/866 CPU options: (if using a MPC859 or MPC866 CPU):
- CFG_866_OSCCLK
- CFG_866_CPUCLK_MIN
- CFG_866_CPUCLK_MAX
- CFG_866_CPUCLK_DEFAULT
+- 859/866/885 CPU options: (if using a MPC859 or MPC866 or MPC885 CPU):
+ CFG_8xx_CPUCLK_MIN
+ CFG_8xx_CPUCLK_MAX
+ CONFIG_8xx_CPUCLK_DEFAULT
See doc/README.MPC866
CFG_MEASURE_CPUCLK
values. Mostly useful for board bringup to make sure
the PLL is locked at the intended frequency. Note
that this requires a (stable) reference clock (32 kHz
- RTC clock),
+ RTC clock or CFG_8XX_XIN)
- Linux Kernel Interface:
CONFIG_CLOCKS_IN_MHZ
expect it to be in bytes, others in MB.
Define CONFIG_MEMSIZE_IN_BYTES to make it in bytes.
+- Serial Ports:
+ CFG_PL010_SERIAL
+
+ Define this if you want support for Amba PrimeCell PL010 UARTs.
+
+ CFG_PL011_SERIAL
+
+ Define this if you want support for Amba PrimeCell PL011 UARTs.
+
+ CONFIG_PL011_CLOCK
+
+ If you have Amba PrimeCell PL011 UARTs, set this variable to
+ the clock speed of the UARTs.
+
+ CONFIG_PL01x_PORTS
+
+ If you have Amba PrimeCell PL010 or PL011 UARTs on your board,
+ define this to a list of base addresses for each (supported)
+ port. See e.g. include/configs/versatile.h
+
+
- Console Interface:
Depending on board, define exactly one serial port
(like CONFIG_8xx_CONS_SMC1, CONFIG_8xx_CONS_SMC2,
CFG_CMD_ASKENV * ask for env variable
CFG_CMD_AUTOSCRIPT Autoscript Support
CFG_CMD_BDI bdinfo
- CFG_CMD_BEDBUG Include BedBug Debugger
+ CFG_CMD_BEDBUG * Include BedBug Debugger
CFG_CMD_BMP * BMP support
+ CFG_CMD_BSP * Board specific commands
CFG_CMD_BOOTD bootd
- CFG_CMD_CACHE icache, dcache
+ CFG_CMD_CACHE * icache, dcache
CFG_CMD_CONSOLE coninfo
CFG_CMD_DATE * support for RTC, date/time...
- CFG_CMD_DHCP DHCP support
+ CFG_CMD_DHCP * DHCP support
CFG_CMD_DIAG * Diagnostics
CFG_CMD_DOC * Disk-On-Chip Support
- CFG_CMD_DTT Digital Therm and Thermostat
+ CFG_CMD_DTT * Digital Therm and Thermostat
CFG_CMD_ECHO * echo arguments
CFG_CMD_EEPROM * EEPROM read/write support
- CFG_CMD_ELF bootelf, bootvx
+ CFG_CMD_ELF * bootelf, bootvx
CFG_CMD_ENV saveenv
CFG_CMD_FDC * Floppy Disk Support
- CFG_CMD_FAT FAT partition support
+ CFG_CMD_FAT * FAT partition support
CFG_CMD_FDOS * Dos diskette Support
CFG_CMD_FLASH flinfo, erase, protect
CFG_CMD_FPGA FPGA device initialization support
CFG_CMD_IMLS List all found images
CFG_CMD_IMMAP * IMMR dump support
CFG_CMD_IRQ * irqinfo
- CFG_CMD_ITEST * Integer/string test of 2 values
+ CFG_CMD_ITEST Integer/string test of 2 values
CFG_CMD_JFFS2 * JFFS2 Support
CFG_CMD_KGDB * kgdb
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_MMC * MMC memory mapped support
+ CFG_CMD_MII * MII utility commands
CFG_CMD_NAND * NAND support
CFG_CMD_NET bootp, tftpboot, rarpboot
CFG_CMD_PCI * pciinfo
CFG_CMD_PORTIO * Port I/O
CFG_CMD_REGINFO * Register dump
CFG_CMD_RUN run command in env variable
- CFG_CMD_SAVES save S record dump
+ CFG_CMD_SAVES * save S record dump
CFG_CMD_SCSI * SCSI Support
CFG_CMD_SDRAM * print SDRAM configuration information
+ (requires CFG_CMD_I2C)
CFG_CMD_SETGETDCR Support for DCR Register access (4xx only)
CFG_CMD_SPI * SPI serial bus support
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_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
- 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.
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.
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
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
+ and define CONFIG_USB_STORAGE to enable the USB
storage devices.
Note:
Supported are USB Keyboards and USB Floppy drives
enabled with CFG_CMD_MMC. The MMC driver also works with
the FAT fs. This is enabled with CFG_CMD_FAT.
+- Journaling Flash filesystem support:
+ CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
+ CONFIG_JFFS2_NAND_DEV
+ Define these for a default partition on a NAND device
+
+ CFG_JFFS2_FIRST_SECTOR,
+ CFG_JFFS2_FIRST_BANK, CFG_JFFS2_NUM_BANKS
+ Define these for a default partition on a NOR device
+
+ CFG_JFFS_CUSTOM_PART
+ Define this to create an own partition. You have to provide a
+ function struct part_info* jffs2_part_info(int part_num)
+
+ If you define only one JFFS2 partition you may also want to
+ #define CFG_JFFS_SINGLE_PART 1
+ to disable the command chpart. This is the default when you
+ have not defined a custom partition
+
- Keyboard Support:
CONFIG_ISA_KEYBOARD
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):
+ Following standard modes are supported (* is default):
Colors 640x480 800x600 1024x768 1152x864 1280x1024
-------------+---------------------------------------------
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
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
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
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
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.
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
source code. It is used to make hardware dependant
initializations.
-- CFG_IMMR: Physical address of the Internal Memory Mapped
- Register; DO NOT CHANGE! (11-4)
- [MPC8xx systems only]
+- CFG_IMMR: Physical address of the Internal Memory.
+ DO NOT CHANGE unless you know exactly what you're
+ doing! (11-4) [MPC8xx/82xx systems only]
- CFG_INIT_RAM_ADDR:
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).
+
+- CONFIG_MX_CYCLIC
+ Add the "mdc" and "mwc" memory commands. These are cyclic
+ "md/mw" commands.
+ Examples:
+
+ => mdc.b 10 4 500
+ This command will print 4 bytes (10,11,12,13) each 500 ms.
+
+ => mwc.l 100 12345678 10
+ This command will write 12345678 to address 100 all 10 ms.
+
+ This only takes effect if the memory commands are activated
+ globally (CFG_CMD_MEM).
+
+- CONFIG_SKIP_LOWLEVEL_INIT
+- CONFIG_SKIP_RELOCATE_UBOOT
+
+ [ARM only] If these variables are defined, then
+ certain low level initializations (like setting up
+ the memory controller) are omitted and/or U-Boot does
+ not relocate itself into RAM.
+ Normally these variables MUST NOT be defined. The
+ only exception is when U-Boot is loaded (to RAM) by
+ some other boot loader or by a debugger which
+ performs these intializations itself.
+
+
Building the Software:
======================
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
+ Alaska8220_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
+ omap2420h4_config WALNUT405_config
+ Yukon8220_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.
- 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_80MHz_config
- - will configure for a TQM823L at 80 MHz with U-Boot console on LCD
-
etc.
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
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
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"),
-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.
stage-2 loader which in turn loads and then invokes the kernel
proper. Loader sources will eventually appear in the NetBSD source
tree (probably in sys/arc/mpc8xx/stand/u-boot_stage2/); in the
-meantime, send mail to bruno@exet-ag.de and/or wd@denx.de for
-details.
+meantime, see ftp://ftp.denx.de/pub/u-boot/ppcboot_stage2.tar.gz
Implementation Internals:
establish some rules. Submissions which do not conform to these rules
may be rejected, even when they contain important and valuable stuff.
+Patches shall be sent to the u-boot-users mailing list.
When you send a patch, please include the following information with
it:
(using #ifdef), and the resulting code with the new feature
disabled must not need more memory than the old code without your
modification.
+
+* Remember that there is a size limit of 40 kB per message on the
+ u-boot-users mailing list. Compression may help.
projects / karo-tx-uboot.git / blobdiff