that this requires a (stable) reference clock (32 kHz
RTC clock or CONFIG_SYS_8XX_XIN)
+ CONFIG_SYS_DELAYED_ICACHE
+
+ Define this option if you want to enable the
+ ICache only when Code runs from RAM.
+
- Intel Monahans options:
CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
except those marked below with a "*".
CONFIG_CMD_ASKENV * ask for env variable
- CONFIG_CMD_AUTOSCRIPT Autoscript Support
CONFIG_CMD_BDI bdinfo
CONFIG_CMD_BEDBUG * Include BedBug Debugger
CONFIG_CMD_BMP * BMP support
CONFIG_CMD_ECHO echo arguments
CONFIG_CMD_EEPROM * EEPROM read/write support
CONFIG_CMD_ELF * bootelf, bootvx
- CONFIG_CMD_ENV saveenv
+ CONFIG_CMD_SAVEENV saveenv
CONFIG_CMD_FDC * Floppy Disk Support
CONFIG_CMD_FAT * FAT partition support
CONFIG_CMD_FDOS * Dos diskette Support
CONFIG_CMD_MISC Misc functions like sleep etc
CONFIG_CMD_MMC * MMC memory mapped support
CONFIG_CMD_MII * MII utility commands
+ CONFIG_CMD_MTDPARTS * MTD partition support
CONFIG_CMD_NAND * NAND support
CONFIG_CMD_NET bootp, tftpboot, rarpboot
CONFIG_CMD_PCA953X * PCA953x I2C gpio commands
(requires CONFIG_CMD_I2C)
CONFIG_CMD_SETGETDCR Support for DCR Register access
(4xx only)
+ CONFIG_CMD_SOURCE "source" command Support
CONFIG_CMD_SPI * SPI serial bus support
CONFIG_CMD_USB * USB support
CONFIG_CMD_VFD * VFD support (TRAB)
Note: overly (ab)use of the default environment is
discouraged. Make sure to check other ways to preset
- the environment like the autoscript function or the
+ the environment like the "source" command or the
boot command first.
- DataFlash Support:
81 common/cmd_net.c NetLoop() back without error
-82 common/cmd_net.c size == 0 (File with size 0 loaded)
82 common/cmd_net.c trying automatic boot
- 83 common/cmd_net.c running autoscript
- -83 common/cmd_net.c some error in automatic boot or autoscript
+ 83 common/cmd_net.c running "source" command
+ -83 common/cmd_net.c some error in automatic boot or "source" command
84 common/cmd_net.c end without errors
FIT uImage format:
- CONFIG_SYS_64BIT_STRTOUL:
Adds simple_strtoull that returns a 64bit value
+- CONFIG_NS16550_MIN_FUNCTIONS:
+ Define this if you desire to only have use of the NS16550_init
+ and NS16550_putc functions for the serial driver located at
+ drivers/serial/ns16550.c. This option is useful for saving
+ space for already greatly restricted images, including but not
+ limited to NAND_SPL configurations.
+
Low Level (hardware related) configuration options:
---------------------------------------------------
CONFIG_SYS_POCMR2_MASK_ATTRIB: (MPC826x only)
Overrides the default PCI memory map in cpu/mpc8260/pci.c if set.
+- CONFIG_PCI_DISABLE_PCIE:
+ Disable PCI-Express on systems where it is supported but not
+ required.
+
- CONFIG_SPD_EEPROM
Get DDR timing information from an I2C EEPROM. Common
with pluggable memory modules such as SODIMMs
Only for 83xx systems. If specified, then DDR should
be configured using CS0 and CS1 instead of CS2 and CS3.
-- CONFIG_SYS_83XX_DDR_USES_CS0
- Only for 83xx systems. If specified, then DDR should
- be configured using CS0 and CS1 instead of CS2 and CS3.
-
- CONFIG_ETHER_ON_FEC[12]
Define to enable FEC[12] on a 8xx series processor.
$ CROSS_COMPILE=ppc_4xx-
$ export CROSS_COMPILE
+Note: If you wish to generate Windows versions of the utilities in
+ the tools directory you can use the MinGW toolchain
+ (http://www.mingw.org). Set your HOST tools to the MinGW
+ toolchain and execute 'make tools'. For example:
+
+ $ make HOSTCC=i586-mingw32msvc-gcc HOSTSTRIP=i586-mingw32msvc-strip tools
+
+ Binaries such as tools/mkimage.exe will be created which can
+ be executed on computers running Windows.
+
U-Boot is intended to be simple to build. After installing the
sources you must configure U-Boot for one specific board type. This
is done by typing:
autoscript - if set to "yes" commands like "loadb", "loady",
"bootp", "tftpb", "rarpboot" and "nfs" will attempt
to automatically run script images (by internally
- calling "autoscript").
+ calling "source").
autoscript_uname - if script image is in a format (FIT) this
variable is used to get script subimage unit name.