- i386 Files specific to i386 CPUs
- ixp Files specific to Intel XScale IXP CPUs
- mcf52x2 Files specific to Freescale ColdFire MCF52x2 CPUs
+ - mcf532x Files specific to Freescale ColdFire MCF5329 CPUs
- mips Files specific to MIPS CPUs
- mpc5xx Files specific to Freescale MPC5xx CPUs
- mpc5xxx Files specific to Freescale MPC5xxx CPUs
- lib_mips Files generic to MIPS architecture
- lib_nios Files generic to NIOS architecture
- lib_ppc Files generic to PowerPC architecture
+- libfdt Library files to support flattened device trees
- net Networking code
- post Power On Self Test
- rtc Real Time Clock drivers
The following options need to be configured:
-- CPU Type: Define exactly one of
-
- PowerPC based 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
- or CONFIG_405GP
- or CONFIG_405EP
- or CONFIG_440
- or CONFIG_MPC74xx
- or CONFIG_750FX
-
- ARM based CPUs:
- ---------------
- CONFIG_SA1110
- CONFIG_ARM7
- CONFIG_PXA250
- CONFIG_CPU_MONAHANS
-
- MicroBlaze based CPUs:
- ----------------------
- CONFIG_MICROBLAZE
-
- Nios-2 based CPUs:
- ----------------------
- CONFIG_NIOS2
-
- AVR32 based CPUs:
- ----------------------
- CONFIG_AT32AP
-
-- Board Type: Define exactly one of
-
- PowerPC based boards:
- ---------------------
-
- 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_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_DUET_ADS CONFIG_MIP405 CONFIG_SXNI855T
- CONFIG_EBONY CONFIG_MOUSSE CONFIG_TQM823L
- CONFIG_ELPPC CONFIG_MPC8260ADS CONFIG_TQM8260
- CONFIG_ELPT860 CONFIG_MPC8540ADS CONFIG_TQM850L
- 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_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_PLEB2, 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
- CONFIG_EP1C20 CONFIG_EP1S10 CONFIG_EP1S40
-
- AVR32 based boards:
- -------------------
-
- CONFIG_ATSTK1000
+- CPU Type: Define exactly one, e.g. CONFIG_MPC85XX.
+
+- Board Type: Define exactly one, e.g. CONFIG_MPC8540ADS.
- CPU Daughterboard Type: (if CONFIG_ATSTK1000 is defined)
Define exactly one of
expect it to be in bytes, others in MB.
Define CONFIG_MEMSIZE_IN_BYTES to make it in bytes.
- CONFIG_OF_FLAT_TREE
+ CONFIG_OF_LIBFDT / 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.
+ passed using flattened device trees (based on open firmware
+ concepts).
+
+ CONFIG_OF_LIBFDT
+ * New libfdt-based support
+ * Adds the "fdt" command
+ * The bootm command does _not_ modify the fdt
+
+ CONFIG_OF_FLAT_TREE
+ * Deprecated, see CONFIG_OF_LIBFDT
+ * Original ft_build.c-based support
+ * Automatically modifies the dft as part of the bootm command
+ * The environment variable "disable_of", when set,
+ disables this functionality.
CONFIG_OF_FLAT_TREE_MAX_SIZE
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_LIBFDT - enables the "fdt bd_t" command
+ * CONFIG_OF_FLAT_TREE - 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_LIBFDT - enables the "fdt bd_t" command
+ * CONFIG_OF_FLAT_TREE - The resulting flat device tree
+ will have a copy of u-boot's environment variables
CONFIG_OF_BOARD_SETUP
CFG_CONSOLE_BLINK_COUNT blink interval (cf. i8042.c)
CONFIG_CONSOLE_TIME display time/date info in
upper right corner
- (requires CFG_CMD_DATE)
+ (requires CONFIG_CMD_DATE)
CONFIG_VIDEO_LOGO display Linux logo in
upper left corner
CONFIG_VIDEO_BMP_LOGO use bmp_logo.h instead of
time on others. This setting #define's the initial
value of the "loads_echo" environment variable.
-- Kgdb Serial Baudrate: (if CFG_CMD_KGDB is defined)
+- Kgdb Serial Baudrate: (if CONFIG_CMD_KGDB is defined)
CONFIG_KGDB_BAUDRATE
Select one of the baudrates listed in
CFG_BAUDRATE_TABLE, see below.
- Monitor Functions:
- CONFIG_COMMANDS
- Most monitor functions can be selected (or
- de-selected) by adjusting the definition of
- CONFIG_COMMANDS; to select individual functions,
- #define CONFIG_COMMANDS by "OR"ing any of the
- following values:
-
- #define enables commands:
- -------------------------
- CFG_CMD_ASKENV * ask for env variable
- CFG_CMD_AUTOSCRIPT Autoscript Support
- CFG_CMD_BDI bdinfo
- 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_CONSOLE coninfo
- CFG_CMD_DATE * support for RTC, date/time...
- 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_EEPROM * EEPROM read/write support
- CFG_CMD_ELF * bootelf, bootvx
- CFG_CMD_ENV saveenv
- CFG_CMD_FDC * Floppy Disk 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_HWFLOW * RTS/CTS hw flow control
- CFG_CMD_I2C * I2C serial bus support
- CFG_CMD_IDE * IDE harddisk support
- CFG_CMD_IMI iminfo
- 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_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, 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_NAND * NAND support
- CFG_CMD_NET bootp, tftpboot, rarpboot
- CFG_CMD_PCI * pciinfo
- CFG_CMD_PCMCIA * PCMCIA support
- CFG_CMD_PING * send ICMP ECHO_REQUEST to network host
- 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_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
-
- 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
- CONFIG_CMD_DFL in include/cmd_confdefs.h. A board can
- override the default settings in the respective
- include file.
+ Monitor commands can be included or excluded
+ from the build by using the #include files
+ "config_cmd_all.h" and #undef'ing unwanted
+ commands, or using "config_cmd_default.h"
+ and augmenting with additional #define's
+ for wanted commands.
+
+ The default command configuration includes all commands
+ 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_BSP * Board specific commands
+ CONFIG_CMD_BOOTD bootd
+ CONFIG_CMD_CACHE * icache, dcache
+ CONFIG_CMD_CONSOLE coninfo
+ CONFIG_CMD_DATE * support for RTC, date/time...
+ CONFIG_CMD_DHCP * DHCP support
+ CONFIG_CMD_DIAG * Diagnostics
+ CONFIG_CMD_DOC * Disk-On-Chip Support
+ 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_FDC * Floppy Disk Support
+ CONFIG_CMD_FAT * FAT partition support
+ CONFIG_CMD_FDOS * Dos diskette Support
+ CONFIG_CMD_FLASH flinfo, erase, protect
+ CONFIG_CMD_FPGA FPGA device initialization support
+ CONFIG_CMD_HWFLOW * RTS/CTS hw flow control
+ CONFIG_CMD_I2C * I2C serial bus support
+ CONFIG_CMD_IDE * IDE harddisk support
+ CONFIG_CMD_IMI iminfo
+ CONFIG_CMD_IMLS List all found images
+ CONFIG_CMD_IMMAP * IMMR dump support
+ CONFIG_CMD_IRQ * irqinfo
+ CONFIG_CMD_ITEST Integer/string test of 2 values
+ CONFIG_CMD_JFFS2 * JFFS2 Support
+ CONFIG_CMD_KGDB * kgdb
+ CONFIG_CMD_LOADB loadb
+ CONFIG_CMD_LOADS loads
+ CONFIG_CMD_MEMORY md, mm, nm, mw, cp, cmp, crc, base,
+ loop, loopw, mtest
+ CONFIG_CMD_MISC Misc functions like sleep etc
+ CONFIG_CMD_MMC * MMC memory mapped support
+ CONFIG_CMD_MII * MII utility commands
+ CONFIG_CMD_NAND * NAND support
+ CONFIG_CMD_NET bootp, tftpboot, rarpboot
+ CONFIG_CMD_PCI * pciinfo
+ CONFIG_CMD_PCMCIA * PCMCIA support
+ CONFIG_CMD_PING * send ICMP ECHO_REQUEST to network
+ host
+ CONFIG_CMD_PORTIO * Port I/O
+ CONFIG_CMD_REGINFO * Register dump
+ CONFIG_CMD_RUN run command in env variable
+ CONFIG_CMD_SAVES * save S record dump
+ CONFIG_CMD_SCSI * SCSI Support
+ CONFIG_CMD_SDRAM * print SDRAM configuration information
+ (requires CONFIG_CMD_I2C)
+ CONFIG_CMD_SETGETDCR Support for DCR Register access
+ (4xx only)
+ CONFIG_CMD_SPI * SPI serial bus support
+ CONFIG_CMD_USB * USB support
+ CONFIG_CMD_VFD * VFD support (TRAB)
+ CONFIG_CMD_BSP * Board SPecific functions
+ CONFIG_CMD_CDP * Cisco Discover Protocol support
+ CONFIG_CMD_FSL * Microblaze FSL support
+
EXAMPLE: If you want all functions except of network
support you can write:
- #define CONFIG_COMMANDS (CFG_CMD_ALL & ~CFG_CMD_NET)
+ #include "config_cmd_all.h"
+ #undef CONFIG_CMD_NET
+ Other Commands:
+ fdt (flattened device tree) command: CONFIG_OF_LIBFDT
Note: Don't enable the "icache" and "dcache" commands
- (configuration option CFG_CMD_CACHE) unless you know
+ (configuration option CONFIG_CMD_CACHE) unless you know
what you (and your U-Boot users) are doing. Data
cache cannot be enabled on systems like the 8xx or
8260 (where accesses to the IMMR region must be
- Real-Time Clock:
- When CFG_CMD_DATE is selected, the type of the RTC
+ When CONFIG_CMD_DATE is selected, the type of the RTC
has to be selected, too. Define exactly one of the
following options:
When CONFIG_TIMESTAMP is selected, the timestamp
(date and time) of an image is printed by image
commands like bootm or iminfo. This option is
- automatically enabled when you select CFG_CMD_DATE .
+ automatically enabled when you select CONFIG_CMD_DATE .
- Partition Support:
CONFIG_MAC_PARTITION and/or CONFIG_DOS_PARTITION
and/or CONFIG_ISO_PARTITION
- If IDE or SCSI support is enabled (CFG_CMD_IDE or
- CFG_CMD_SCSI) you must configure support for at least
+ If IDE or SCSI support is enabled (CONFIG_CMD_IDE or
+ CONFIG_CMD_SCSI) you must configure support for at least
one partition type as well.
- IDE Reset method:
CONFIG_USB_CONFIG
for differential drivers: 0x00001000
for single ended drivers: 0x00005000
+ CFG_USB_EVENT_POLL
+ May be defined to allow interrupt polling
+ instead of using asynchronous interrupts
+
+- USB Device:
+ Define the below if you wish to use the USB console.
+ Once firmware is rebuilt from a serial console issue the
+ command "setenv stdin usbtty; setenv stdout usbtty" and
+ attach your usb cable. The Unix command "dmesg" should print
+ it has found a new device. The environment variable usbtty
+ can be set to gserial or cdc_acm to enable your device to
+ appear to a USB host as a Linux gserial device or a
+ Common Device Class Abstract Control Model serial device.
+ If you select usbtty = gserial you should be able to enumerate
+ a Linux host by
+ # modprobe usbserial vendor=0xVendorID product=0xProductID
+ else if using cdc_acm, simply setting the environment
+ variable usbtty to be cdc_acm should suffice. The following
+ might be defined in YourBoardName.h
+
+ CONFIG_USB_DEVICE
+ Define this to build a UDC device
+
+ CONFIG_USB_TTY
+ Define this to have a tty type of device available to
+ talk to the UDC device
+
+ CFG_CONSOLE_IS_IN_ENV
+ Define this if you want stdin, stdout &/or stderr to
+ be set to usbtty.
+
+ mpc8xx:
+ CFG_USB_EXTC_CLK 0xBLAH
+ Derive USB clock from external clock "blah"
+ - CFG_USB_EXTC_CLK 0x02
+
+ CFG_USB_BRG_CLK 0xBLAH
+ Derive USB clock from brgclk
+ - CFG_USB_BRG_CLK 0x04
+
+ If you have a USB-IF assigned VendorID then you may wish to
+ define your own vendor specific values either in BoardName.h
+ or directly in usbd_vendor_info.h. If you don't define
+ CONFIG_USBD_MANUFACTURER, CONFIG_USBD_PRODUCT_NAME,
+ CONFIG_USBD_VENDORID and CONFIG_USBD_PRODUCTID, then U-Boot
+ should pretend to be a Linux device to it's target host.
+
+ CONFIG_USBD_MANUFACTURER
+ Define this string as the name of your company for
+ - CONFIG_USBD_MANUFACTURER "my company"
+
+ CONFIG_USBD_PRODUCT_NAME
+ Define this string as the name of your product
+ - CONFIG_USBD_PRODUCT_NAME "acme usb device"
+
+ CONFIG_USBD_VENDORID
+ Define this as your assigned Vendor ID from the USB
+ Implementors Forum. This *must* be a genuine Vendor ID
+ to avoid polluting the USB namespace.
+ - CONFIG_USBD_VENDORID 0xFFFF
+
+ CONFIG_USBD_PRODUCTID
+ Define this as the unique Product ID
+ for your device
+ - CONFIG_USBD_PRODUCTID 0xFFFF
- MMC Support:
enable this define CONFIG_MMC. The MMC can be
accessed from the boot prompt by mapping the device
to physical memory similar to flash. Command line is
- enabled with CFG_CMD_MMC. The MMC driver also works with
- the FAT fs. This is enabled with CFG_CMD_FAT.
+ enabled with CONFIG_CMD_MMC. The MMC driver also works with
+ the FAT fs. This is enabled with CONFIG_CMD_FAT.
- Journaling Flash filesystem support:
CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
Defines a default value for theIP address of a TFTP
server to contact when using the "tftboot" command.
+- Multicast TFTP Mode:
+ CONFIG_MCAST_TFTP
+
+ Defines whether you want to support multicast TFTP as per
+ rfc-2090; for example to work with atftp. Lets lots of targets
+ tftp down the same boot image concurrently. Note: the ethernet
+ driver in use must provide a function: mcast() to join/leave a
+ multicast group.
+
+ CONFIG_BOOTP_RANDOM_DELAY
- BOOTP Recovery Mode:
CONFIG_BOOTP_RANDOM_DELAY
boot, thus flooding the BOOTP server. Defining
CONFIG_BOOTP_RANDOM_DELAY causes a random delay to be
inserted before sending out BOOTP requests. The
- following delays are insterted then:
+ following delays are inserted then:
1st BOOTP request: delay 0 ... 1 sec
2nd BOOTP request: delay 0 ... 2 sec
BOOTP requests: delay 0 ... 8 sec
- DHCP Advanced Options:
- CONFIG_BOOTP_MASK
-
- You can fine tune the DHCP functionality by adding
- these flags to the CONFIG_BOOTP_MASK define:
+ You can fine tune the DHCP functionality by defining
+ CONFIG_BOOTP_* symbols:
+
+ CONFIG_BOOTP_SUBNETMASK
+ CONFIG_BOOTP_GATEWAY
+ CONFIG_BOOTP_HOSTNAME
+ CONFIG_BOOTP_NISDOMAIN
+ CONFIG_BOOTP_BOOTPATH
+ CONFIG_BOOTP_BOOTFILESIZE
+ CONFIG_BOOTP_DNS
+ CONFIG_BOOTP_DNS2
+ CONFIG_BOOTP_SEND_HOSTNAME
+ CONFIG_BOOTP_NTPSERVER
+ CONFIG_BOOTP_TIMEOFFSET
+ CONFIG_BOOTP_VENDOREX
+
+ CONFIG_BOOTP_SERVERIP - TFTP server will be the serverip
+ environment variable, not the BOOTP server.
CONFIG_BOOTP_DNS2 - If a DHCP client requests the DNS
serverip from a DHCP server, it is possible that more
serverip will be stored in the additional environment
variable "dnsip2". The first DNS serverip is always
stored in the variable "dnsip", when CONFIG_BOOTP_DNS
- is added to the CONFIG_BOOTP_MASK.
+ is defined.
CONFIG_BOOTP_SEND_HOSTNAME - Some DHCP servers are capable
to do a dynamic update of a DNS server. To do this, they
need the hostname of the DHCP requester.
- If CONFIG_BOOP_SEND_HOSTNAME is added to the
- CONFIG_BOOTP_MASK, the content of the "hostname"
- environment variable is passed as option 12 to
- the DHCP server.
+ If CONFIG_BOOTP_SEND_HOSTNAME is defined, the content
+ of the "hostname" environment variable is passed as
+ option 12 to the DHCP server.
- CDP Options:
CONFIG_CDP_DEVICE_ID
include the appropriate I2C driver for the selected cpu.
This will allow you to use i2c commands at the u-boot
- command line (as long as you set CFG_CMD_I2C in
+ command line (as long as you set CONFIG_CMD_I2C in
CONFIG_COMMANDS) and communicate with i2c based realtime
clock chips. See common/cmd_i2c.c for a description of the
command line interface.
- CONFIG_HARD_I2C selects the CPM hardware driver for I2C.
+ CONFIG_I2C_CMD_TREE is a recommended option that places
+ all I2C commands under a single 'i2c' root command. The
+ older 'imm', 'imd', 'iprobe' etc. commands are considered
+ deprecated and may disappear in the future.
+
+ CONFIG_HARD_I2C selects a hardware I2C controller.
CONFIG_SOFT_I2C configures u-boot to use a software (aka
bit-banging) driver instead of CPM or similar hardware
in u-boot bd_info structure based on u-boot environment
variable "i2cfast". (see also i2cfast)
+ CONFIG_I2C_MULTI_BUS
+
+ This option allows the use of multiple I2C buses, each of which
+ must have a controller. At any point in time, only one bus is
+ active. To switch to a different bus, use the 'i2c dev' command.
+ Note that bus numbering is zero-based.
+
+ CFG_I2C_NOPROBES
+
+ This option specifies a list of I2C devices that will be skipped
+ when the 'i2c probe' command is issued (or 'iprobe' using the legacy
+ command). If CONFIG_I2C_MULTI_BUS is set, specify a list of bus-device
+ pairs. Otherwise, specify a 1D array of device addresses
+
+ e.g.
+ #undef CONFIG_I2C_MULTI_BUS
+ #define CFG_I2C_NOPROBES {0x50,0x68}
+
+ will skip addresses 0x50 and 0x68 on a board with one I2C bus
+
+ #define CONFIG_I2C_MULTI_BUS
+ #define CFG_I2C_MULTI_NOPROBES {{0,0x50},{0,0x68},{1,0x54}}
+
+ will skip addresses 0x50 and 0x68 on bus 0 and address 0x54 on bus 1
+
+ CFG_SPD_BUS_NUM
+
+ If defined, then this indicates the I2C bus number for DDR SPD.
+ If not defined, then U-Boot assumes that SPD is on I2C bus 0.
+
+ CFG_RTC_BUS_NUM
+
+ If defined, then this indicates the I2C bus number for the RTC.
+ If not defined, then U-Boot assumes that RTC is on I2C bus 0.
+
+ CFG_DTT_BUS_NUM
+
+ If defined, then this indicates the I2C bus number for the DTT.
+ If not defined, then U-Boot assumes that DTT is on I2C bus 0.
+
+ CONFIG_FSL_I2C
+
+ Define this option if you want to use Freescale's I2C driver in
+ drivers/fsl_i2c.c.
+
+
- SPI Support: CONFIG_SPI
Enables SPI driver (so far only tested with
-31 post/post.c POST test failed, detected by post_output_backlog()
-32 post/post.c POST test failed, detected by post_run_single()
- -1 common/cmd_doc.c Bad usage of "doc" command
- -1 common/cmd_doc.c No boot device
- -1 common/cmd_doc.c Unknown Chip ID on boot device
- -1 common/cmd_doc.c Read Error on boot device
- -1 common/cmd_doc.c Image header has bad magic number
-
- -1 common/cmd_ide.c Bad usage of "ide" command
- -1 common/cmd_ide.c No boot device
- -1 common/cmd_ide.c Unknown boot device
- -1 common/cmd_ide.c Unknown partition table
- -1 common/cmd_ide.c Invalid partition type
- -1 common/cmd_ide.c Read Error on boot device
- -1 common/cmd_ide.c Image header has bad magic number
-
- -1 common/cmd_nand.c Bad usage of "nand" command
- -1 common/cmd_nand.c No boot device
- -1 common/cmd_nand.c Unknown Chip ID on boot device
- -1 common/cmd_nand.c Read Error on boot device
- -1 common/cmd_nand.c Image header has bad magic number
-
- -1 common/env_common.c Environment has a bad CRC, using default
-
+ 34 common/cmd_doc.c before loading a Image from a DOC device
+ -35 common/cmd_doc.c Bad usage of "doc" command
+ 35 common/cmd_doc.c correct usage of "doc" command
+ -36 common/cmd_doc.c No boot device
+ 36 common/cmd_doc.c correct boot device
+ -37 common/cmd_doc.c Unknown Chip ID on boot device
+ 37 common/cmd_doc.c correct chip ID found, device available
+ -38 common/cmd_doc.c Read Error on boot device
+ 38 common/cmd_doc.c reading Image header from DOC device OK
+ -39 common/cmd_doc.c Image header has bad magic number
+ 39 common/cmd_doc.c Image header has correct magic number
+ -40 common/cmd_doc.c Error reading Image from DOC device
+ 40 common/cmd_doc.c Image header has correct magic number
+ 41 common/cmd_ide.c before loading a Image from a IDE device
+ -42 common/cmd_ide.c Bad usage of "ide" command
+ 42 common/cmd_ide.c correct usage of "ide" command
+ -43 common/cmd_ide.c No boot device
+ 43 common/cmd_ide.c boot device found
+ -44 common/cmd_ide.c Device not available
+ 44 common/cmd_ide.c Device available
+ -45 common/cmd_ide.c wrong partition selected
+ 45 common/cmd_ide.c partition selected
+ -46 common/cmd_ide.c Unknown partition table
+ 46 common/cmd_ide.c valid partition table found
+ -47 common/cmd_ide.c Invalid partition type
+ 47 common/cmd_ide.c correct partition type
+ -48 common/cmd_ide.c Error reading Image Header on boot device
+ 48 common/cmd_ide.c reading Image Header from IDE device OK
+ -49 common/cmd_ide.c Image header has bad magic number
+ 49 common/cmd_ide.c Image header has correct magic number
+ -50 common/cmd_ide.c Image header has bad checksum
+ 50 common/cmd_ide.c Image header has correct checksum
+ -51 common/cmd_ide.c Error reading Image from IDE device
+ 51 common/cmd_ide.c reading Image from IDE device OK
+ 52 common/cmd_nand.c before loading a Image from a NAND device
+ -53 common/cmd_nand.c Bad usage of "nand" command
+ 53 common/cmd_nand.c correct usage of "nand" command
+ -54 common/cmd_nand.c No boot device
+ 54 common/cmd_nand.c boot device found
+ -55 common/cmd_nand.c Unknown Chip ID on boot device
+ 55 common/cmd_nand.c correct chip ID found, device available
+ -56 common/cmd_nand.c Error reading Image Header on boot device
+ 56 common/cmd_nand.c reading Image Header from NAND device OK
+ -57 common/cmd_nand.c Image header has bad magic number
+ 57 common/cmd_nand.c Image header has correct magic number
+ -58 common/cmd_nand.c Error reading Image from NAND device
+ 58 common/cmd_nand.c reading Image from NAND device OK
+
+ -60 common/env_common.c Environment has a bad CRC, using default
+
+ 64 net/eth.c starting with Ethernetconfiguration.
+ -64 net/eth.c no Ethernet found.
+ 65 net/eth.c Ethernet found.
+
+ -80 common/cmd_net.c usage wrong
+ 80 common/cmd_net.c before calling NetLoop()
+ -81 common/cmd_net.c some error in NetLoop() occured
+ 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
+ 84 common/cmd_net.c end without errors
Modem Support:
--------------
CFG_POCMR2_MASK_ATTRIB: (MPC826x only)
Overrides the default PCI memory map in cpu/mpc8260/pci.c if set.
+- CONFIG_SPD_EEPROM
+ Get DDR timing information from an I2C EEPROM. Common with pluggable
+ memory modules such as SODIMMs
+ SPD_EEPROM_ADDRESS
+ I2C address of the SPD EEPROM
+
+- CFG_SPD_BUS_NUM
+ If SPD EEPROM is on an I2C bus other than the first one, specify here.
+ Note that the value must resolve to something your driver can deal with.
+
+- CFG_83XX_DDR_USES_CS0
+ Only for 83xx systems. If specified, then DDR should be configured
+ using CS0 and CS1 instead of CS2 and CS3.
+
+- CFG_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.
- CONFIG_LOOPW
Add the "loopw" memory command. This only takes effect if
- the memory commands are activated globally (CFG_CMD_MEM).
+ the memory commands are activated globally (CONFIG_CMD_MEM).
- CONFIG_MX_CYCLIC
Add the "mdc" and "mwc" memory commands. These are cyclic
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).
+ globally (CONFIG_CMD_MEM).
- CONFIG_SKIP_LOWLEVEL_INIT
- CONFIG_SKIP_RELOCATE_UBOOT
make NAME_config
where "NAME_config" is the name of one of the existing
-configurations; the following names are supported:
-
- 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 mpc7448hpc2_config SM850_config
- ELPT860_config MPC8260ADS_config SPD823TS_config
- ESTEEM192E_config MPC8540ADS_config stxgp3_config
- ETX094_config MPC8540EVAL_config SXNI855T_config
- FADS823_config NMPC8560ADS_config TQM823L_config
- FADS850SAR_config NETVIA_config TQM850L_config
- FADS860T_config omap1510inn_config TQM855L_config
- FPS850L_config omap1610h2_config TQM860L_config
- omap1610inn_config walnut_config
- omap5912osk_config Yukon8220_config
- omap2420h4_config ZPC1900_config
+configurations; see the main Makefile for supported names.
Note: for some board special configuration names may exist; check if
additional information is available from the board vendor; for