#
-# (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
- - ppc4xx Files specific to IBM PowerPC 4xx CPUs
+ - nios2 Files specific to Altera Nios-II CPUs
+ - ppc4xx Files specific to AMCC PowerPC 4xx CPUs
- pxa Files specific to Intel XScale PXA CPUs
- s3c44b0 Files specific to Samsung S3C44B0 CPUs
- sa1100 Files specific to Intel StrongARM SA1100 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_SA1110
CONFIG_ARM7
CONFIG_PXA250
+ CONFIG_CPU_MONAHANS
MicroBlaze based CPUs:
----------------------
- CONFIG_MICROBLZE
+ CONFIG_MICROBLAZE
+
+ Nios-2 based CPUs:
+ ----------------------
+ CONFIG_NIOS2
- Board Type: Define exactly one of
PowerPC based boards:
---------------------
- CONFIG_ADCIOP CONFIG_GEN860T CONFIG_PCI405
- CONFIG_ADS860 CONFIG_GENIETV CONFIG_PCIPPC2
- CONFIG_AMX860 CONFIG_GTH CONFIG_PCIPPC6
+ CONFIG_ADCIOP CONFIG_FPS860L CONFIG_OXC
+ CONFIG_ADS860 CONFIG_GEN860T CONFIG_PCI405
+ CONFIG_AMX860 CONFIG_GENIETV CONFIG_PCIPPC2
+ CONFIG_AP1000 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_BC3450 CONFIG_hymod CONFIG_PM826
+ CONFIG_c2mon CONFIG_IAD210 CONFIG_ppmc8260
+ CONFIG_CANBT CONFIG_ICU862 CONFIG_QS823
+ CONFIG_CCM CONFIG_IP860 CONFIG_QS850
+ CONFIG_CMI CONFIG_IPHASE4539 CONFIG_QS860T
+ CONFIG_cogent_mpc8260 CONFIG_IVML24 CONFIG_RBC823
+ CONFIG_cogent_mpc8xx CONFIG_IVML24_128 CONFIG_RPXClassic
+ CONFIG_CPCI405 CONFIG_IVML24_256 CONFIG_RPXlite
+ CONFIG_CPCI4052 CONFIG_IVMS8 CONFIG_RPXsuper
+ CONFIG_CPCIISER4 CONFIG_IVMS8_128 CONFIG_rsdproto
+ CONFIG_CPU86 CONFIG_IVMS8_256 CONFIG_sacsng
+ CONFIG_CRAYL1 CONFIG_JSE CONFIG_Sandpoint8240
+ CONFIG_CSB272 CONFIG_LANTEC CONFIG_Sandpoint8245
+ CONFIG_CU824 CONFIG_LITE5200B CONFIG_sbc8260
+ CONFIG_DASA_SIM CONFIG_lwmon CONFIG_sbc8560
CONFIG_DB64360 CONFIG_MBX CONFIG_SM850
CONFIG_DB64460 CONFIG_MBX860T CONFIG_SPD823TS
CONFIG_DU405 CONFIG_MHPC CONFIG_STXGP3
CONFIG_EBONY CONFIG_MOUSSE CONFIG_TQM823L
CONFIG_ELPPC CONFIG_MPC8260ADS CONFIG_TQM8260
CONFIG_ELPT860 CONFIG_MPC8540ADS CONFIG_TQM850L
- CONFIG_ep8260 CONFIG_MPC8560ADS CONFIG_TQM855L
- CONFIG_ERIC CONFIG_MUSENKI CONFIG_TQM860L
- CONFIG_ESTEEM192E CONFIG_MVS1 CONFIG_TTTech
- CONFIG_ETX094 CONFIG_NETPHONE CONFIG_UTX8245
- CONFIG_EVB64260 CONFIG_NETTA CONFIG_V37
- CONFIG_FADS823 CONFIG_NETVIA CONFIG_W7OLMC
- CONFIG_FADS850SAR CONFIG_NX823 CONFIG_W7OLMG
- CONFIG_FADS860T CONFIG_OCRTC CONFIG_WALNUT405
- CONFIG_FLAGADM CONFIG_ORSG CONFIG_ZPC1900
- CONFIG_FPS850L CONFIG_OXC CONFIG_ZUMA
- CONFIG_FPS860L
+ CONFIG_ep8260 CONFIG_MPC8540EVAL CONFIG_TQM855L
+ CONFIG_ERIC CONFIG_MPC8560ADS CONFIG_TQM860L
+ CONFIG_ESTEEM192E CONFIG_MUSENKI CONFIG_TTTech
+ CONFIG_ETX094 CONFIG_MVS1 CONFIG_UTX8245
+ CONFIG_EVB64260 CONFIG_NETPHONE CONFIG_V37
+ CONFIG_FADS823 CONFIG_NETTA CONFIG_W7OLMC
+ CONFIG_FADS850SAR CONFIG_NETVIA CONFIG_W7OLMG
+ CONFIG_FADS860T CONFIG_NX823 CONFIG_WALNUT
+ CONFIG_FLAGADM CONFIG_OCRTC CONFIG_ZPC1900
+ CONFIG_FPS850L CONFIG_ORSG CONFIG_ZUMA
ARM based boards:
-----------------
- CONFIG_AT91RM9200DK, 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
+ CONFIG_ARMADILLO, CONFIG_AT91RM9200DK, CONFIG_CERF250,
+ CONFIG_CSB637, CONFIG_DELTA, CONFIG_DNP1110,
+ CONFIG_EP7312, CONFIG_H2_OMAP1610, CONFIG_HHP_CRADLE,
+ CONFIG_IMPA7, CONFIG_INNOVATOROMAP1510, CONFIG_INNOVATOROMAP1610,
+ CONFIG_KB9202, 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)
Define exactly one of
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)
+
+- Intel Monahans options:
+ CFG_MONAHANS_RUN_MODE_OSC_RATIO
+
+ Defines the Monahans run mode to oscillator
+ ratio. Valid values are 8, 16, 24, 31. The core
+ frequency is this value multiplied by 13 MHz.
+
+ CFG_MONAHANS_TURBO_RUN_MODE_RATIO
+
+ Defines the Monahans turbo mode to oscillator
+ ratio. Valid values are 1 (default if undefined) and
+ 2. The core frequency as calculated above is multiplied
+ by this value.
- 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.
+ CONFIG_OF_FLAT_TREE
+
+ New kernel versions are expecting firmware settings to be
+ passed using flat open firmware trees.
+ The environment variable "disable_of", when set, disables this
+ functionality.
+
+ CONFIG_OF_FLAT_TREE_MAX_SIZE
+
+ The maximum size of the constructed OF tree.
+
+ OF_CPU - The proper name of the cpus node.
+ OF_SOC - The proper name of the soc node.
+ OF_TBCLK - The timebase frequency.
+ OF_STDOUT_PATH - The path to the console device
+
+ CONFIG_OF_HAS_BD_T
+
+ The resulting flat device tree will have a copy of the bd_t.
+ Space should be pre-allocated in the dts for the bd_t.
+
+ CONFIG_OF_HAS_UBOOT_ENV
+
+ The resulting flat device tree will have a copy of u-boot's
+ environment variables
+
+ CONFIG_OF_BOARD_SETUP
+
+ Board code has addition modification that it wants to make
+ to the flat device tree before handing it off to the kernel
+
+- 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,
- Console UART Number:
CONFIG_UART1_CONSOLE
- IBM PPC4xx only.
+ AMCC PPC4xx only.
If defined internal UART1 (and not UART0) is used
as default U-Boot console.
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_ECHO * echo arguments
+ 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_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.
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
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
loaded very quickly after power-on.
+- Gzip compressed BMP image support: CONFIG_VIDEO_BMP_GZIP
+
+ If this option is set, additionally to standard BMP
+ images, gzipped BMP images can be displayed via the
+ splashscreen support or the bmp command.
+
- Compression support:
CONFIG_BZIP2
remaining RAM in a form that can be passed as boot
argument to Linux, for instance like that:
- setenv bootargs ... mem=\$(mem)
+ setenv bootargs ... mem=\${mem}
saveenv
This way you can tell Linux not to use this memory,
When SystemACE support is added, the "ace" device type
becomes available to the fat commands, i.e. fatls.
+- TFTP Fixed UDP Port:
+ CONFIG_TFTP_PORT
+
+ If this is defined, the environment variable tftpsrcp
+ is used to supply the TFTP UDP source port value.
+ If tftpsrcp isn't defined, the normal pseudo-random port
+ number generator is used.
+
+ Also, the environment variable tftpdstp is used to supply
+ the TFTP UDP destination port value. If tftpdstp isn't
+ defined, the normal port 69 is used.
+
+ The purpose for tftpsrcp is to allow a TFTP server to
+ blindly start the TFTP transfer using the pre-configured
+ target IP address and UDP port. This has the effect of
+ "punching through" the (Windows XP) firewall, allowing
+ the remainder of the TFTP transfer to proceed normally.
+ A better solution is to properly configure the firewall,
+ but sometimes that is not allowed.
+
- Show boot progress:
CONFIG_SHOW_BOOT_PROGRESS
- CFG_MALLOC_LEN:
Size of DRAM reserved for malloc() use.
+- CFG_BOOTM_LEN:
+ Normally compressed uImages are limited to an
+ uncompressed size of 8 MBytes. If this is not enough,
+ you can define CFG_BOOTM_LEN in your board config file
+ to adjust this setting to your needs.
+
- CFG_BOOTMAPSZ:
Maximum size of memory mapped by the startup code of
the Linux kernel; all data that must be processed by
This option also enables the building of the cfi_flash driver
in the drivers directory
+- CFG_FLASH_QUIET_TEST
+ If this option is defined, the common CFI flash doesn't
+ print it's warning upon not recognized FLASH banks. This
+ is useful, if some of the configured banks are only
+ optionally available.
+
- CFG_RX_ETH_BUFFER:
Defines the number of ethernet receive buffers. On some
ethernet controllers it is recommended to set this value
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_ENV_OFFSET_REDUND
+
+ This setting describes a second storage area of CFG_ENV_SIZE
+ size used to hold a redundant copy of the environment data,
+ so that there is a valid backup copy in case there is a
+ power failure during a "saveenv" operation.
+
+ Note: CFG_ENV_OFFSET and CFG_ENV_OFFSET_REDUND must be aligned
+ to a block boundary, and CFG_ENV_SIZE must be a multiple of
+ the NAND devices block size.
- 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:
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:
======================
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 RPXsuper_config
- cogent_mpc8xx_config IVMS8_config rsdproto_config
- CPCI405_config JSE_config Sandpoint8240_config
- CPCIISER4_config LANTEC_config sbc8260_config
- csb272_config lwmon_config SM850_config
- CU824_config MBX860T_config SPD823TS_config
- DUET_ADS_config MBX_config stxgp3_config
- EBONY_config MPC8260ADS_config SXNI855T_config
- ELPT860_config MPC8540ADS_config TQM823L_config
- ESTEEM192E_config MPC8560ADS_config TQM850L_config
- ETX094_config NETVIA_config TQM855L_config
- FADS823_config omap1510inn_config TQM860L_config
- FADS850SAR_config omap1610h2_config WALNUT405_config
- FADS860T_config omap1610inn_config ZPC1900_config
- FPS850L_config omap5912osk_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 MPC8540EVAL_config stxgp3_config
+ ETX094_config MPC8560ADS_config SXNI855T_config
+ FADS823_config NETVIA_config TQM823L_config
+ FADS850SAR_config omap1510inn_config TQM850L_config
+ FADS860T_config omap1610h2_config TQM855L_config
+ FPS850L_config omap1610inn_config TQM860L_config
+ omap5912osk_config walnut_config
+ omap2420h4_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
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
Useful on scripts which control the retry operation
themselves.
+ tftpsrcport - If this is set, the value is used for TFTP's
+ UDP source port.
+
+ tftpdstport - If this is set, the value is used for TFTP's UDP
+ destination port instead of the Well Know Port 69.
+
vlan - When set to a value < 4095 the traffic over
ethernet is encapsulated/received over 802.1q
VLAN tagged frames.
- supports environment variables (through setenv / saveenv commands)
- several commands on one line, separated by ';'
-- variable substitution using "... $(name) ..." syntax
+- variable substitution using "... ${name} ..." syntax
- special characters ('$', ';') can be escaped by prefixing with '\',
for example:
- setenv bootcmd bootm \$(address)
+ setenv bootcmd bootm \${address}
- You can also escape text by enclosing in single apostrophes, for example:
setenv addip 'setenv bootargs $bootargs ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname::off'
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:
CFG_INIT_RAM_ADDR should be somewhere that won't interfere
with your processor/board/system design. The default value
you will find in any recent u-boot distribution in
- Walnut405.h should work for you. I'd set it to a value larger
+ walnut.h should work for you. I'd set it to a value larger
than your SDRAM module. If you have a 64MB SDRAM module, set
it above 400_0000. Just make sure your board has no resources
that are supposed to respond to that address! That code in
==> U-Boot will use R8 to hold a pointer to the global data
+NOTE: DECLARE_GLOBAL_DATA_PTR must be used with file-global scope,
+or current versions of GCC may "optimize" the code too much.
Memory Management:
------------------
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