- i386 Files specific to i386 CPUs
- ixp Files specific to Intel XScale IXP CPUs
- mcf52x2 Files specific to Freescale ColdFire MCF52x2 CPUs
+ - mcf5227x Files specific to Freescale ColdFire MCF5227x CPUs
+ - mcf532x Files specific to Freescale ColdFire MCF5329 CPUs
+ - mcf5445x Files specific to Freescale ColdFire MCF5445x CPUs
+ - mcf547x_8x Files specific to Freescale ColdFire MCF547x_8x CPUs
- mips Files specific to MIPS CPUs
- mpc5xx Files specific to Freescale MPC5xx CPUs
- mpc5xxx Files specific to Freescale MPC5xxx CPUs
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_PXA27X
- 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.
-- CPU Daughterboard Type: (if CONFIG_ATSTK1000 is defined)
- Define exactly one of
- CONFIG_ATSTK1002
+- Board Type: Define exactly one, e.g. CONFIG_MPC8540ADS.
+- CPU Daughterboard Type: (if CONFIG_ATSTK1000 is defined)
+ Define exactly one, e.g. CONFIG_ATSTK1002
- CPU Module Type: (if CONFIG_COGENT is defined)
Define exactly one of
CONFIG_OF_LIBFDT
* New libfdt-based support
* Adds the "fdt" command
- * The bootm command does _not_ modify the fdt
+ * The bootm command automatically updates the fdt
CONFIG_OF_FLAT_TREE
* Deprecated, see CONFIG_OF_LIBFDT
* 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
+ boards with QUICC Engines require OF_QE to set UCC mac addresses
+
CONFIG_OF_HAS_BD_T
* CONFIG_OF_LIBFDT - enables the "fdt bd_t" command
CONFIG_OF_HAS_UBOOT_ENV
- * CONFIG_OF_LIBFDT - enables the "fdt bd_t" command
+ * CONFIG_OF_LIBFDT - enables the "fdt env" command
* CONFIG_OF_FLAT_TREE - The resulting flat device tree
will have a copy of u-boot's environment variables
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_ISL1208 - use Intersil ISL1208 RTC
CONFIG_RTC_MAX6900 - use Maxim, Inc. MAX6900 RTC
Note that if the RTC uses I2C, then the I2C interface
(i.e. setenv videomode 317; saveenv; reset;)
- "videomode=bootargs" all the video parameters are parsed
- from the bootargs. (See drivers/videomodes.c)
+ from the bootargs. (See drivers/video/videomodes.c)
CONFIG_VIDEO_SED13806
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
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
than one DNS serverip is offered to the client.
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 defined, the content
+ If CONFIG_BOOTP_SEND_HOSTNAME is defined, the content
of the "hostname" environment variable is passed as
option 12 to the DHCP server.
CONFIG_FSL_I2C
Define this option if you want to use Freescale's I2C driver in
- drivers/fsl_i2c.c.
+ drivers/i2c/fsl_i2c.c.
- SPI Support: CONFIG_SPI
SPI configuration items (port pins to use, etc). For
an example, see include/configs/sacsng.h.
-- FPGA Support: CONFIG_FPGA_COUNT
+ CONFIG_HARD_SPI
- Specify the number of FPGA devices to support.
+ Enables a hardware SPI driver for general-purpose reads
+ and writes. As with CONFIG_SOFT_SPI, the board configuration
+ must define a list of chip-select function pointers.
+ Currently supported on some MPC8xxx processors. For an
+ example, see include/configs/mpc8349emds.h.
+
+- FPGA Support: CONFIG_FPGA
- CONFIG_FPGA
+ Enables FPGA subsystem.
- Used to specify the types of FPGA devices. For example,
- #define CONFIG_FPGA CFG_XILINX_VIRTEX2
+ CONFIG_FPGA_<vendor>
+
+ Enables support for specific chip vendors.
+ (ALTERA, XILINX)
+
+ CONFIG_FPGA_<family>
+
+ Enables support for FPGA family.
+ (SPARTAN2, SPARTAN3, VIRTEX2, CYCLONE2, ACEX1K, ACEX)
+
+ CONFIG_FPGA_COUNT
+
+ Specify the number of FPGA devices to support.
CFG_FPGA_PROG_FEEDBACK
is useful, if some of the configured banks are only
optionally available.
+- CONFIG_FLASH_SHOW_PROGRESS
+ If defined (must be an integer), print out countdown
+ digits and dots. Recommended value: 45 (9..1) for 80
+ column displays, 15 (3..1) for 40 column displays.
+
- CFG_RX_ETH_BUFFER:
Defines the number of ethernet receive buffers. On some
ethernet controllers it is recommended to set this value
to be a good choice since it makes it far enough from the
start of the data area as well as from the stack pointer.
-Please note that the environment is read-only as long as the monitor
+Please note that the environment is read-only until the monitor
has been relocated to RAM and a RAM copy of the environment has been
created; also, when using EEPROM you will have to use getenv_r()
until then to read environment variables.
enable I2C microcode relocation patch (MPC8xx);
define relocation offset in DPRAM [DSP2]
+- CFG_SMC_UCODE_PATCH, CFG_SMC_DPMEM_OFFSET [0x1FC0]:
+ enable SMC microcode relocation patch (MPC8xx);
+ define relocation offset in DPRAM [SMC1]
+
- CFG_SPI_UCODE_PATCH, CFG_SPI_DPMEM_OFFSET [0x1FC0]:
enable SPI microcode relocation patch (MPC8xx);
define relocation offset in DPRAM [SCC4]
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
=> setenv ethact SCC ETHERNET
=> ping 10.0.0.1 # traffic sent on SCC ETHERNET
+ ethrotate - When set to "no" U-Boot does not go through all
+ available network interfaces.
+ It just stays at the currently selected interface.
+
netretry - When set to "no" each network operation will
either succeed or fail without retrying.
When set to "once" the network operation will
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
+
tftpsrcport - If this is set, the value is used for TFTP's
UDP source port.
For PowerPC, the following registers have specific use:
R1: stack pointer
- R2: TOC pointer
+ R2: reserved for system use
R3-R4: parameter passing and return values
R5-R10: parameter passing
R13: small data area pointer
(U-Boot also uses R14 as internal GOT pointer.)
- ==> U-Boot will use R29 to hold a pointer to the global data
+ ==> U-Boot will use R2 to hold a pointer to the global data
Note: on PPC, we could use a static initializer (since the
address of the global data structure is known at compile time),
average for all boards 752 bytes for the whole U-Boot image,
624 text + 127 data).
+On Blackfin, the normal C ABI (except for P5) is followed as documented here:
+ http://docs.blackfin.uclinux.org/doku.php?id=application_binary_interface
+
+ ==> U-Boot will use P5 to hold a pointer to the global data
+
On ARM, the following registers are used:
R0: function argument word/integer result
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