#
-# (C) Copyright 2000 - 2011
+# (C) Copyright 2000 - 2012
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
Defines the string to utilize when trying to match PCIe device
tree nodes for the given platform.
+- Generic CPU options:
+ CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
+
+ Defines the endianess of the CPU. Implementation of those
+ values is arch specific.
+
- Intel Monahans options:
CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
XWAY SoCs for booting from NOR flash. The U-Boot image needs to
be swapped if a flash programmer is used.
+- ARM options:
+ CONFIG_SYS_EXCEPTION_VECTORS_HIGH
+
+ Select high exception vectors of the ARM core, e.g., do not
+ clear the V bit of the c1 register of CP15.
+
+ CONFIG_SYS_THUMB_BUILD
+
+ Use this flag to build U-Boot using the Thumb instruction
+ set for ARM architectures. Thumb instruction set provides
+ better code density. For ARM architectures that support
+ Thumb2 this flag will result in Thumb2 code generated by
+ GCC.
+
- Linux Kernel Interface:
CONFIG_CLOCKS_IN_MHZ
'Sane' compilers will generate smaller code if
CONFIG_PRE_CON_BUF_SZ is a power of 2
+- Safe printf() functions
+ Define CONFIG_SYS_VSNPRINTF to compile in safe versions of
+ the printf() functions. These are defined in
+ include/vsprintf.h and include snprintf(), vsnprintf() and
+ so on. Code size increase is approximately 300-500 bytes.
+ If this option is not given then these functions will
+ silently discard their buffer size argument - this means
+ you are not getting any overflow checking in this case.
+
- Boot Delay: CONFIG_BOOTDELAY - in seconds
Delay before automatically booting the default image;
set to -1 to disable autoboot.
CONFIG_CMD_JFFS2 * JFFS2 Support
CONFIG_CMD_KGDB * kgdb
CONFIG_CMD_LDRINFO ldrinfo (display Blackfin loader)
+ CONFIG_CMD_LINK_LOCAL * link-local IP address auto-configuration
+ (169.254.*.*)
CONFIG_CMD_LOADB loadb
CONFIG_CMD_LOADS loads
CONFIG_CMD_MD5SUM print md5 message digest
(requires CONFIG_CMD_I2C)
CONFIG_CMD_SETGETDCR Support for DCR Register access
(4xx only)
+ CONFIG_CMD_SF * Read/write/erase SPI NOR flash
CONFIG_CMD_SHA1SUM print sha1 memory digest
(requires CONFIG_CMD_MEMORY)
CONFIG_CMD_SOURCE "source" command Support
CONFIG_CMD_TIME * run command and report execution time
CONFIG_CMD_USB * USB support
CONFIG_CMD_CDP * Cisco Discover Protocol support
- CONFIG_CMD_FSL * Microblaze FSL support
+ CONFIG_CMD_MFSL * Microblaze FSL support
EXAMPLE: If you want all functions except of network
If this defined, the driver is quiet.
The driver doen't show link status messages.
+ CONFIG_CALXEDA_XGMAC
+ Support for the Calxeda XGMAC device
+
CONFIG_DRIVER_LAN91C96
Support for SMSC's LAN91C96 chips.
May be defined to allow interrupt polling
instead of using asynchronous interrupts
+ CONFIG_USB_EHCI_TXFIFO_THRESH enables setting of the
+ txfilltuning field in the EHCI controller on reset.
+
- USB Device:
Define the below if you wish to use the USB console.
Once firmware is rebuilt from a serial console issue the
Define this to have a tty type of device available to
talk to the UDC device
+ CONFIG_USBD_HS
+ Define this to enable the high speed support for usb
+ device and usbtty. If this feature is enabled, a routine
+ int is_usbd_high_speed(void)
+ also needs to be defined by the driver to dynamically poll
+ whether the enumeration has succeded at high speed or full
+ speed.
+
CONFIG_SYS_CONSOLE_IS_IN_ENV
Define this if you want stdin, stdout &/or stderr to
be set to usbtty.
for your device
- CONFIG_USBD_PRODUCTID 0xFFFF
+- ULPI Layer Support:
+ The ULPI (UTMI Low Pin (count) Interface) PHYs are supported via
+ the generic ULPI layer. The generic layer accesses the ULPI PHY
+ via the platform viewport, so you need both the genric layer and
+ the viewport enabled. Currently only Chipidea/ARC based
+ viewport is supported.
+ To enable the ULPI layer support, define CONFIG_USB_ULPI and
+ CONFIG_USB_ULPI_VIEWPORT in your board configuration file.
- MMC Support:
The MMC controller on the Intel PXA is supported. To
- FAT(File Allocation Table) filesystem write function support:
CONFIG_FAT_WRITE
- Support for saving memory data as a file
- in FAT formatted partition
+
+ Define this to enable support for saving memory data as a
+ file in FAT formatted partition.
+
+ This will also enable the command "fatwrite" enabling the
+ user to write files to FAT.
- Keyboard Support:
CONFIG_ISA_KEYBOARD
CONFIG_BOOTP_NTPSERVER
CONFIG_BOOTP_TIMEOFFSET
CONFIG_BOOTP_VENDOREX
+ CONFIG_BOOTP_MAY_FAIL
CONFIG_BOOTP_SERVERIP - TFTP server will be the serverip
environment variable, not the BOOTP server.
+ CONFIG_BOOTP_MAY_FAIL - If the DHCP server is not found
+ after the configured retry count, the call will fail
+ instead of starting over. This can be used to fail over
+ to Link-local IP address configuration if the DHCP server
+ is not available.
+
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.
the DHCP timeout and retry process takes a longer than
this delay.
+ - Link-local IP address negotiation:
+ Negotiate with other link-local clients on the local network
+ for an address that doesn't require explicit configuration.
+ This is especially useful if a DHCP server cannot be guaranteed
+ to exist in all environments that the device must operate.
+
+ See doc/README.link-local for more information.
+
- CDP Options:
CONFIG_CDP_DEVICE_ID
allows to read/write in Dataflash via the standard
commands cp, md...
+- Serial Flash support
+ CONFIG_CMD_SF
+
+ Defining this option enables SPI flash commands
+ 'sf probe/read/write/erase/update'.
+
+ Usage requires an initial 'probe' to define the serial
+ flash parameters, followed by read/write/erase/update
+ commands.
+
+ The following defaults may be provided by the platform
+ to handle the common case when only a single serial
+ flash is present on the system.
+
+ CONFIG_SF_DEFAULT_BUS Bus identifier
+ CONFIG_SF_DEFAULT_CS Chip-select
+ CONFIG_SF_DEFAULT_MODE (see include/spi.h)
+ CONFIG_SF_DEFAULT_SPEED in Hz
+
- SystemACE Support:
CONFIG_SYSTEMACE
example, some LED's) on your board. At the moment,
the following checkpoints are implemented:
+- Detailed boot stage timing
+ CONFIG_BOOTSTAGE
+ Define this option to get detailed timing of each stage
+ of the boot process.
+
+ CONFIG_BOOTSTAGE_USER_COUNT
+ This is the number of available user bootstage records.
+ Each time you call bootstage_mark(BOOTSTAGE_ID_ALLOC, ...)
+ a new ID will be allocated from this stash. If you exceed
+ the limit, recording will stop.
+
+ CONFIG_BOOTSTAGE_REPORT
+ Define this to print a report before boot, similar to this:
+
+ Timer summary in microseconds:
+ Mark Elapsed Stage
+ 0 0 reset
+ 3,575,678 3,575,678 board_init_f start
+ 3,575,695 17 arch_cpu_init A9
+ 3,575,777 82 arch_cpu_init done
+ 3,659,598 83,821 board_init_r start
+ 3,910,375 250,777 main_loop
+ 29,916,167 26,005,792 bootm_start
+ 30,361,327 445,160 start_kernel
+
Legacy uImage format:
Arg Where When
CONFIG_SPL
Enable building of SPL globally.
+ CONFIG_SPL_LDSCRIPT
+ LDSCRIPT for linking the SPL binary.
+
+ CONFIG_SPL_MAX_SIZE
+ Maximum binary size (text, data and rodata) of the SPL binary.
+
CONFIG_SPL_TEXT_BASE
TEXT_BASE for linking the SPL binary.
- CONFIG_SPL_LDSCRIPT
- LDSCRIPT for linking the SPL binary.
+ CONFIG_SPL_BSS_START_ADDR
+ Link address for the BSS within the SPL binary.
+
+ CONFIG_SPL_BSS_MAX_SIZE
+ Maximum binary size of the BSS section of the SPL binary.
+
+ CONFIG_SPL_STACK
+ Adress of the start of the stack SPL will use
+
+ CONFIG_SYS_SPL_MALLOC_START
+ Starting address of the malloc pool used in SPL.
+
+ CONFIG_SYS_SPL_MALLOC_SIZE
+ The size of the malloc pool used in SPL.
CONFIG_SPL_LIBCOMMON_SUPPORT
Support for common/libcommon.o in SPL binary
CONFIG_SPL_MMC_SUPPORT
Support for drivers/mmc/libmmc.o in SPL binary
+ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR,
+ CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS,
+ CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION
+ Address, size and partition on the MMC to load U-Boot from
+ when the MMC is being used in raw mode.
+
+ CONFIG_SPL_FAT_SUPPORT
+ Support for fs/fat/libfat.o in SPL binary
+
+ CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME
+ Filename to read to load U-Boot when reading from FAT
+
+ CONFIG_SPL_NAND_SIMPLE
+ Support for drivers/mtd/nand/libnand.o in SPL binary
+
+ CONFIG_SYS_NAND_5_ADDR_CYCLE, CONFIG_SYS_NAND_PAGE_COUNT,
+ CONFIG_SYS_NAND_PAGE_SIZE, CONFIG_SYS_NAND_OOBSIZE,
+ CONFIG_SYS_NAND_BLOCK_SIZE, CONFIG_SYS_NAND_BAD_BLOCK_POS,
+ CONFIG_SYS_NAND_ECCPOS, CONFIG_SYS_NAND_ECCSIZE,
+ CONFIG_SYS_NAND_ECCBYTES
+ Defines the size and behavior of the NAND that SPL uses
+ to read U-Boot with CONFIG_SPL_NAND_SIMPLE
+
+ CONFIG_SYS_NAND_U_BOOT_OFFS
+ Location in NAND for CONFIG_SPL_NAND_SIMPLE to read U-Boot
+ from.
+
+ CONFIG_SYS_NAND_U_BOOT_START
+ Location in memory for CONFIG_SPL_NAND_SIMPLE to load U-Boot
+ to.
+
+ CONFIG_SYS_NAND_HW_ECC_OOBFIRST
+ Define this if you need to first read the OOB and then the
+ data. This is used for example on davinci plattforms.
+
+ CONFIG_SPL_OMAP3_ID_NAND
+ Support for an OMAP3-specific set of functions to return the
+ ID and MFR of the first attached NAND chip, if present.
+
CONFIG_SPL_SERIAL_SUPPORT
Support for drivers/serial/libserial.o in SPL binary
CONFIG_SPL_SPI_SUPPORT
Support for drivers/spi/libspi.o in SPL binary
- CONFIG_SPL_FAT_SUPPORT
- Support for fs/fat/libfat.o in SPL binary
-
CONFIG_SPL_LIBGENERIC_SUPPORT
Support for lib/libgeneric.o in SPL binary
environment area within the total memory of your DataFlash placed
at the specified address.
+- CONFIG_ENV_IS_IN_REMOTE:
+
+ Define this if you have a remote memory space which you
+ want to use for the local device's environment.
+
+ - CONFIG_ENV_ADDR:
+ - CONFIG_ENV_SIZE:
+
+ These two #defines specify the address and size of the
+ environment area within the remote memory space. The
+ local device can get the environment from remote memory
+ space by SRIO or other links.
+
+BE CAREFUL! For some special cases, the local device can not use
+"saveenv" command. For example, the local device will get the
+environment stored in a remote NOR flash by SRIO link, but it can
+not erase, write this NOR flash by SRIO interface.
+
- CONFIG_ENV_IS_IN_NAND:
Define this if you have a NAND device which you want to use
that is executed before the actual U-Boot. E.g. when
compiling a NAND SPL.
-- CONFIG_SYS_NAND_HW_ECC_OOBFIRST
- define this, if you want to read first the oob data
- and then the data. This is used for example on
- davinci plattforms.
-
- CONFIG_USE_ARCH_MEMCPY
CONFIG_USE_ARCH_MEMSET
If these options are used a optimized version of memcpy/memset will
Specifies that QE/FMAN firmware is located on the primary SPI
device. CONFIG_SYS_FMAN_FW_ADDR is the byte offset on that device.
+- CONFIG_SYS_QE_FMAN_FW_IN_REMOTE
+ Specifies that QE/FMAN firmware is located in the remote (master)
+ memory space. CONFIG_SYS_FMAN_FW_ADDR is a virtual address which
+ can be mapped from slave TLB->slave LAW->slave SRIO outbound window
+ ->master inbound window->master LAW->the ucode address in master's
+ NOR flash.
Building the Software:
======================
make NAME_config
where "NAME_config" is the name of one of the existing configu-
-rations; see the main Makefile for supported names.
+rations; see boards.cfg for supported names.
Note: for some board special configuration names may exist; check if
additional information is available from the board vendor; for
steps:
1. Add a new configuration option for your board to the toplevel
- "Makefile" and to the "MAKEALL" script, using the existing
- entries as examples. Note that here and at many other places
- boards and other names are listed in alphabetical sort order. Please
- keep this order.
+ "boards.cfg" file, using the existing entries as examples.
+ Follow the instructions there to keep the boards in order.
2. Create a new directory to hold your board specific code. Add any
files you need. In your board directory, you will need at least
the "Makefile", a "<board>.c", "flash.c" and "u-boot.lds".
run - run commands in an environment variable
bootm - boot application image from memory
bootp - boot image via network using BootP/TFTP protocol
+bootz - boot zImage from memory
tftpboot- boot image via network using TFTP protocol
and env variables "ipaddr" and "serverip"
(and eventually "gatewayip")
fdt_high - if set this restricts the maximum address that the
flattened device tree will be copied into upon boot.
+ For example, if you have a system with 1 GB memory
+ at physical address 0x10000000, while Linux kernel
+ only recognizes the first 704 MB as low memory, you
+ may need to set fdt_high as 0x3C000000 to have the
+ device tree blob be copied to the maximum address
+ of the 704 MB low memory, so that Linux kernel can
+ access it during the boot procedure.
+
If this is set to the special value 0xFFFFFFFF then
the fdt will not be copied at all on boot. For this
to work it must reside in writable memory, have
useful when you configure U-Boot to use a real shell (hush)
as command interpreter.
+Booting the Linux zImage:
+-------------------------
+
+On some platforms, it's possible to boot Linux zImage. This is done
+using the "bootz" command. The syntax of "bootz" command is the same
+as the syntax of "bootm" command.
+
+Note, defining the CONFIG_SUPPORT_INITRD_RAW allows user to supply
+kernel with raw initrd images. The syntax is slightly different, the
+address of the initrd must be augmented by it's size, in the following
+format: "<initrd addres>:<initrd size>".
+
Standalone HOWTO:
=================
projects / karo-tx-uboot.git / blobdiff