CONFIG_SYS_BAUDRATE_TABLE, see below.
CONFIG_SYS_BRGCLK_PRESCALE, baudrate prescale
+- Console Rx buffer length
+ With CONFIG_SYS_SMC_RXBUFLEN it is possible to define
+ the maximum receive buffer length for the SMC.
+ This option is actual only for 82xx and 8xx possible.
+ If using CONFIG_SYS_SMC_RXBUFLEN also CONFIG_SYS_MAXIDLE
+ must be defined, to setup the maximum idle timeout for
+ the SMC.
+
- Interrupt driven serial port input:
CONFIG_SERIAL_SOFTWARE_FIFO
CONFIG_CMD_DHCP * DHCP support
CONFIG_CMD_DIAG * Diagnostics
CONFIG_CMD_DOC * Disk-On-Chip Support
+ CONFIG_CMD_DS4510 * ds4510 I2C gpio commands
+ CONFIG_CMD_DS4510_INFO * ds4510 I2C info command
+ CONFIG_CMD_DS4510_MEM * ds4510 I2C eeprom/sram commansd
+ CONFIG_CMD_DS4510_RST * ds4510 I2C rst command
CONFIG_CMD_DTT * Digital Therm and Thermostat
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_MII * MII utility commands
CONFIG_CMD_NAND * NAND support
CONFIG_CMD_NET bootp, tftpboot, rarpboot
+ CONFIG_CMD_PCA953X * PCA953x I2C gpio commands
+ CONFIG_CMD_PCA953X_INFO * PCA953x I2C gpio info command
CONFIG_CMD_PCI * pciinfo
CONFIG_CMD_PCMCIA * PCMCIA support
CONFIG_CMD_PING * send ICMP ECHO_REQUEST to network
Note that if the RTC uses I2C, then the I2C interface
must also be configured. See I2C Support, below.
+- GPIO Support:
+ CONFIG_PCA953X - use NXP's PCA953X series I2C GPIO
+ CONFIG_PCA953X_INFO - enable pca953x info command
+
+ Note that if the GPIO device uses I2C, then the I2C interface
+ must also be configured. See I2C Support, below.
+
- Timestamp Support:
When CONFIG_TIMESTAMP is selected, the timestamp
Bus on the MPC8260. But it should be not so difficult
to add this option to other architectures.
+ CONFIG_SOFT_I2C_READ_REPEATED_START
+
+ defining this will force the i2c_read() function in
+ the soft_i2c driver to perform an I2C repeated start
+ between writing the address pointer and reading the
+ data. If this define is omitted the default behaviour
+ of doing a stop-start sequence will be used. Most I2C
+ devices can use either method, but some require one or
+ the other.
- SPI Support: CONFIG_SPI
- CONFIG_SYS_LONGHELP: Defined when you want long help messages included;
undefine this when you're short of memory.
+- CONFIG_SYS_HELP_CMD_WIDTH: Defined when you want to override the default
+ width of the commands listed in the 'help' command output.
+
- CONFIG_SYS_PROMPT: This is what U-Boot prints on the console to
prompt for user input.
- 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
Useful on scripts which control the retry operation
themselves.
- npe_ucode - see CONFIG_IXP4XX_NPE_EXT_UCOD
- if set load address for the NPE microcode
+ npe_ucode - set load address for the NPE microcode
tftpsrcport - If this is set, the value is used for TFTP's
UDP source port.