X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=README;h=33b5728abc6bd2cfb4b2f3304ccba0b81fa99433;hb=f320a4d845ab160dd539888280b6452deebdb3d0;hp=d51ece946c309a37fa3fcf5c1d91f0174e2b016f;hpb=76b40ab41eff1f402ee52ba768b09daad293b9bb;p=karo-tx-uboot.git diff --git a/README b/README index d51ece946c..33b5728abc 100644 --- a/README +++ b/README @@ -201,7 +201,6 @@ Directory Hierarchy: /mpc5xx Files specific to Freescale MPC5xx CPUs /mpc5xxx Files specific to Freescale MPC5xxx CPUs /mpc8xx Files specific to Freescale MPC8xx CPUs - /mpc8220 Files specific to Freescale MPC8220 CPUs /mpc824x Files specific to Freescale MPC824x CPUs /mpc8260 Files specific to Freescale MPC8260 CPUs /mpc85xx Files specific to Freescale MPC85xx CPUs @@ -414,11 +413,22 @@ The following options need to be configured: See Freescale App Note 4493 for more information about this erratum. + CONFIG_A003399_NOR_WORKAROUND + Enables a workaround for IFC erratum A003399. It is only + requred during NOR boot. + CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY This is the value to write into CCSR offset 0x18600 according to the A004510 workaround. + CONFIG_SYS_FSL_DSP_M2_RAM_ADDR + This value denotes start offset of M2 memory + which is directly connected to the DSP core. + + CONFIG_SYS_FSL_DSP_CCSRBAR_DEFAULT + This value denotes start offset of DSP CCSR space. + - Generic CPU options: CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN @@ -485,6 +495,24 @@ The following options need to be configured: Thumb2 this flag will result in Thumb2 code generated by GCC. + CONFIG_ARM_ERRATA_716044 + CONFIG_ARM_ERRATA_742230 + CONFIG_ARM_ERRATA_743622 + CONFIG_ARM_ERRATA_751472 + + If set, the workarounds for these ARM errata are applied early + during U-Boot startup. Note that these options force the + workarounds to be applied; no CPU-type/version detection + exists, unlike the similar options in the Linux kernel. Do not + set these options unless they apply! + +- CPU timer options: + CONFIG_SYS_HZ + + The frequency of the timer returned by get_timer(). + get_timer() must operate in milliseconds and this CONFIG + option must be set to 1000. + - Linux Kernel Interface: CONFIG_CLOCKS_IN_MHZ @@ -616,14 +644,6 @@ The following options need to be configured: boot loader that has already initialized the UART. Define this variable to flush the UART at init time. - CONFIG_SYS_NS16550_BROKEN_TEMT - - 16550 UART set the Transmitter Empty (TEMT) Bit when all output - has finished and the transmitter is totally empty. U-Boot waits - for this bit to be set to initialize the serial console. On some - broken platforms this bit is not set in SPL making U-Boot to - hang while waiting for TEMT. Define this option to avoid it. - - Console Interface: Depending on board, define exactly one serial port @@ -834,6 +854,7 @@ The following options need to be configured: CONFIG_CMD_FDOS * Dos diskette Support CONFIG_CMD_FLASH flinfo, erase, protect CONFIG_CMD_FPGA FPGA device initialization support + CONFIG_CMD_FUSE * Device fuse support CONFIG_CMD_GETTIME * Get time since boot CONFIG_CMD_GO * the 'go' command (exec code) CONFIG_CMD_GREPENV * search environment @@ -843,7 +864,7 @@ The following options need to be configured: CONFIG_CMD_IDE * IDE harddisk support CONFIG_CMD_IMI iminfo CONFIG_CMD_IMLS List all images found in NOR flash - CONFIG_CMD_IMLS_NAND List all images found in NAND flash + CONFIG_CMD_IMLS_NAND * List all images found in NAND flash CONFIG_CMD_IMMAP * IMMR dump support CONFIG_CMD_IMPORTENV * import an environment CONFIG_CMD_INI * import data from an ini file into the env @@ -851,22 +872,24 @@ The following options need to be configured: CONFIG_CMD_ITEST Integer/string test of 2 values CONFIG_CMD_JFFS2 * JFFS2 Support CONFIG_CMD_KGDB * kgdb - CONFIG_CMD_LDRINFO ldrinfo (display Blackfin loader) + 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 + CONFIG_CMD_MD5SUM * print md5 message digest (requires CONFIG_CMD_MEMORY and CONFIG_MD5) CONFIG_CMD_MEMINFO * Display detailed memory information CONFIG_CMD_MEMORY md, mm, nm, mw, cp, cmp, crc, base, - loop, loopw, mtest + loop, loopw + CONFIG_CMD_MEMTEST * mtest 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_NFS NFS support CONFIG_CMD_PCA953X * PCA953x I2C gpio commands CONFIG_CMD_PCA953X_INFO * PCA953x I2C gpio info command CONFIG_CMD_PCI * pciinfo @@ -885,8 +908,9 @@ The following options need to be configured: 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 + CONFIG_CMD_SHA1SUM * print sha1 memory digest (requires CONFIG_CMD_MEMORY) + CONFIG_CMD_SOFTSWITCH * Soft switch setting command for BF60x CONFIG_CMD_SOURCE "source" command Support CONFIG_CMD_SPI * SPI serial bus support CONFIG_CMD_TFTPSRV * TFTP transfer in server mode @@ -896,6 +920,7 @@ The following options need to be configured: CONFIG_CMD_USB * USB support CONFIG_CMD_CDP * Cisco Discover Protocol support CONFIG_CMD_MFSL * Microblaze FSL support + CONFIG_CMD_XIMG Load part of Multi Image EXAMPLE: If you want all functions except of network @@ -919,6 +944,13 @@ The following options need to be configured: XXX - this list needs to get updated! +- Regular expression support: + CONFIG_REGEX + If this variable is defined, U-Boot is linked against + the SLRE (Super Light Regular Expression) library, + which adds regex support to some commands, as for + example "env grep" and "setexpr". + - Device tree: CONFIG_OF_CONTROL If this variable is defined, U-Boot will use a device tree @@ -1190,7 +1222,23 @@ The following options need to be configured: If this option is set, the driver enables cache flush. - TPM Support: - CONFIG_GENERIC_LPC_TPM + CONFIG_TPM + Support TPM devices. + + CONFIG_TPM_TIS_I2C + Support for i2c bus TPM devices. Only one device + per system is supported at this time. + + CONFIG_TPM_TIS_I2C_BUS_NUMBER + Define the the i2c bus number for the TPM device + + CONFIG_TPM_TIS_I2C_SLAVE_ADDRESS + Define the TPM's address on the i2c bus + + CONFIG_TPM_TIS_I2C_BURST_LIMITATION + Define the burst count bytes upper limit + + CONFIG_TPM_TIS_LPC Support for generic parallel port TPM devices. Only one device per system is supported at this time. @@ -1226,6 +1274,9 @@ The following options need to be configured: CONFIG_USB_EHCI_TXFIFO_THRESH enables setting of the txfilltuning field in the EHCI controller on reset. + CONFIG_USB_HUB_MIN_POWER_ON_DELAY defines the minimum + interval for usb hub power-on delay.(minimum 100msec) + - USB Device: Define the below if you wish to use the USB console. Once firmware is rebuilt from a serial console issue the @@ -1325,6 +1376,35 @@ The following options need to be configured: CONFIG_SH_MMCIF_CLK Define the clock frequency for MMCIF +- USB Device Firmware Update (DFU) class support: + CONFIG_DFU_FUNCTION + This enables the USB portion of the DFU USB class + + CONFIG_CMD_DFU + This enables the command "dfu" which is used to have + U-Boot create a DFU class device via USB. This command + requires that the "dfu_alt_info" environment variable be + set and define the alt settings to expose to the host. + + CONFIG_DFU_MMC + This enables support for exposing (e)MMC devices via DFU. + + CONFIG_DFU_NAND + This enables support for exposing NAND devices via DFU. + + CONFIG_SYS_DFU_DATA_BUF_SIZE + Dfu transfer uses a buffer before writing data to the + raw storage device. Make the size (in bytes) of this buffer + configurable. The size of this buffer is also configurable + through the "dfu_bufsiz" environment variable. + + CONFIG_SYS_DFU_MAX_FILE_SIZE + When updating files rather than the raw storage device, + we use a static buffer to copy the file into and then write + the buffer once we've been given the whole file. Define + this to the maximum filesize (in bytes) for the buffer. + Default is 4 MiB if undefined. + - Journaling Flash filesystem support: CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE, CONFIG_JFFS2_NAND_DEV @@ -1371,6 +1451,11 @@ CBFS (Coreboot Filesystem) support Export function i8042_kbd_init, i8042_tstc and i8042_getc for cfb_console. Supports cursor blinking. + CONFIG_CROS_EC_KEYB + Enables a Chrome OS keyboard using the CROS_EC interface. + This uses CROS_EC to communicate with a second microcontroller + which provides key scans on request. + - Video support: CONFIG_VIDEO @@ -1563,14 +1648,6 @@ CBFS (Coreboot Filesystem) support => vertically centered image at x = dspWidth - bmpWidth - 9 - CONFIG_SPLASH_SCREEN_PREPARE - - If this option is set then the board_splash_screen_prepare() - function, which must be defined in your code, is called as part - of the splash screen display sequence. It gives the board an - opportunity to prepare the splash image data before it is - processed and sent to the frame buffer by U-Boot. - - Gzip compressed BMP image support: CONFIG_VIDEO_BMP_GZIP If this option is set, additionally to standard BMP @@ -1926,15 +2003,15 @@ CBFS (Coreboot Filesystem) support I2C_READ - Code that returns TRUE if the I2C data line is high, - FALSE if it is low. + Code that returns true if the I2C data line is high, + false if it is low. eg: #define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0) I2C_SDA(bit) - If is TRUE, sets the I2C data line high. If it - is FALSE, it clears it (low). + If is true, sets the I2C data line high. If it + is false, it clears it (low). eg: #define I2C_SDA(bit) \ if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \ @@ -1942,8 +2019,8 @@ CBFS (Coreboot Filesystem) support I2C_SCL(bit) - If is TRUE, sets the I2C clock line high. If it - is FALSE, it clears it (low). + If is true, sets the I2C clock line high. If it + is false, it clears it (low). eg: #define I2C_SCL(bit) \ if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \ @@ -2448,6 +2525,11 @@ CBFS (Coreboot Filesystem) support Define this option to include a destructive SPI flash test ('sf test'). + CONFIG_SPI_FLASH_BAR Ban/Extended Addr Reg + + Define this option to use the Bank addr/Extended addr + support on SPI flashes which has size > 16Mbytes. + - SystemACE Support: CONFIG_SYSTEMACE @@ -2499,6 +2581,16 @@ CBFS (Coreboot Filesystem) support Note: There is also a sha1sum command, which should perhaps be deprecated in favour of 'hash sha1'. +- Signing support: + CONFIG_RSA + + This enables the RSA algorithm used for FIT image verification + in U-Boot. See doc/uImage/signature for more information. + + The signing part is build into mkimage regardless of this + option. + + - Show boot progress: CONFIG_SHOW_BOOT_PROGRESS @@ -2723,6 +2815,11 @@ FIT uImage format: most specific compatibility entry of U-Boot's fdt's root node. The order of entries in the configuration's fdt is ignored. + CONFIG_FIT_SIGNATURE + This option enables signature verification of FIT uImages, + using a hash signed and verified using RSA. See + doc/uImage.FIT/signature.txt for more details. + - Standalone program support: CONFIG_STANDALONE_LOAD_ADDR @@ -2764,6 +2861,32 @@ FIT uImage format: Adds the MTD partitioning infrastructure from the Linux kernel. Needed for UBI support. +- UBI support + CONFIG_CMD_UBI + + Adds commands for interacting with MTD partitions formatted + with the UBI flash translation layer + + Requires also defining CONFIG_RBTREE + + CONFIG_UBI_SILENCE_MSG + + Make the verbose messages from UBI stop printing. This leaves + warnings and errors enabled. + +- UBIFS support + CONFIG_CMD_UBIFS + + Adds commands for interacting with UBI volumes formatted as + UBIFS. UBIFS is read-only in u-boot. + + Requires UBI support as well as CONFIG_LZO + + CONFIG_UBIFS_SILENCE_MSG + + Make the verbose messages from UBIFS stop printing. This leaves + warnings and errors enabled. + - SPL framework CONFIG_SPL Enable building of SPL globally. @@ -2771,8 +2894,18 @@ FIT uImage format: CONFIG_SPL_LDSCRIPT LDSCRIPT for linking the SPL binary. + CONFIG_SPL_MAX_FOOTPRINT + Maximum size in memory allocated to the SPL, BSS included. + When defined, the linker checks that the actual memory + used by SPL from _start to __bss_end does not exceed it. + CONFIG_SPL_MAX_FOOTPRINT and CONFIG_SPL_BSS_MAX_SIZE + must not be both defined at the same time. + CONFIG_SPL_MAX_SIZE - Maximum binary size (text, data and rodata) of the SPL binary. + Maximum size of the SPL image (text, data, rodata, and + linker lists sections), BSS excluded. + When defined, the linker checks that the actual size does + not exceed it. CONFIG_SPL_TEXT_BASE TEXT_BASE for linking the SPL binary. @@ -2785,7 +2918,11 @@ FIT uImage format: 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. + Maximum size in memory allocated to the SPL BSS. + When defined, the linker checks that the actual memory used + by SPL from __bss_start to __bss_end does not exceed it. + CONFIG_SPL_MAX_FOOTPRINT and CONFIG_SPL_BSS_MAX_SIZE + must not be both defined at the same time. CONFIG_SPL_STACK Adress of the start of the stack SPL will use @@ -2834,12 +2971,30 @@ FIT uImage format: Address, size and partition on the MMC to load U-Boot from when the MMC is being used in raw mode. + CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR + Sector to load kernel uImage from when MMC is being + used in raw mode (for Falcon mode) + + CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR, + CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS + Sector and number of sectors to load kernel argument + parameters from when MMC is being used in raw mode + (for falcon 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_FAT_LOAD_KERNEL_NAME + Filename to read to load kernel uImage when reading + from FAT (for Falcon mode) + + CONFIG_SPL_FAT_LOAD_ARGS_NAME + Filename to read to load kernel argument parameters + when reading from FAT (for Falcon mode) + CONFIG_SPL_MPC83XX_WAIT_FOR_NAND Set this for NAND SPL on PPC mpc83xx targets, so that start.S waits for the rest of the SPL to load before @@ -2903,15 +3058,32 @@ FIT uImage format: CONFIG_SPL_LIBGENERIC_SUPPORT Support for lib/libgeneric.o in SPL binary + CONFIG_SPL_ENV_SUPPORT + Support for the environment operating in SPL binary + + CONFIG_SPL_NET_SUPPORT + Support for the net/libnet.o in SPL binary. + It conflicts with SPL env from storage medium specified by + CONFIG_ENV_IS_xxx but CONFIG_ENV_IS_NOWHERE + CONFIG_SPL_PAD_TO - Linker address to which the SPL should be padded before - appending the SPL payload. + Image offset to which the SPL should be padded before appending + the SPL payload. By default, this is defined as + CONFIG_SPL_MAX_SIZE, or 0 if CONFIG_SPL_MAX_SIZE is undefined. + CONFIG_SPL_PAD_TO must be either 0, meaning to append the SPL + payload without any padding, or >= CONFIG_SPL_MAX_SIZE. CONFIG_SPL_TARGET Final target image containing SPL and payload. Some SPLs use an arch-specific makefile fragment instead, for example if more than one image needs to be produced. + CONFIG_FIT_SPL_PRINT + Printing information about a FIT image adds quite a bit of + code to SPL. So this is normally disabled in SPL. Use this + option to re-enable it. This will affect the output of the + bootm command when booting a FIT image. + Modem Support: -------------- @@ -3171,6 +3343,15 @@ Configuration Settings: digits and dots. Recommended value: 45 (9..1) for 80 column displays, 15 (3..1) for 40 column displays. +- CONFIG_FLASH_VERIFY + If defined, the content of the flash (destination) is compared + against the source after the write operation. An error message + will be printed when the contents are not identical. + Please note that this option is useless in nearly all cases, + since such flash programming errors usually are detected earlier + while unprotecting/erasing/programming. Please only enable + this option if you really know what you are doing. + - CONFIG_SYS_RX_ETH_BUFFER: Defines the number of Ethernet receive buffers. On some Ethernet controllers it is recommended to set this value @@ -3230,6 +3411,27 @@ Configuration Settings: If defined, don't allow the -f switch to env set override variable access flags. +- CONFIG_SYS_GENERIC_BOARD + This selects the architecture-generic board system instead of the + architecture-specific board files. It is intended to move boards + to this new framework over time. Defining this will disable the + arch/foo/lib/board.c file and use common/board_f.c and + common/board_r.c instead. To use this option your architecture + must support it (i.e. must define __HAVE_ARCH_GENERIC_BOARD in + its config.mk file). If you find problems enabling this option on + your board please report the problem and send patches! + +- CONFIG_SYS_SYM_OFFSETS + This is set by architectures that use offsets for link symbols + instead of absolute values. So bss_start is obtained using an + offset _bss_start_ofs from CONFIG_SYS_TEXT_BASE, rather than + directly. You should not need to touch this setting. + +- CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC (OMAP only) + This is set by OMAP boards for the max time that reset should + be asserted. See doc/README.omap-reset-time for details on how + the value can be calulated on a given board. + The following definitions that deal with the placement and management of environment data (variable area); in general, we support the following configurations: @@ -3463,6 +3665,84 @@ but it can not erase, write this NOR flash by SRIO or PCIE interface. environment. If redundant environment is used, it will be copied to CONFIG_NAND_ENV_DST + CONFIG_ENV_SIZE. +- CONFIG_ENV_IS_IN_UBI: + + Define this if you have an UBI volume that you want to use for the + environment. This has the benefit of wear-leveling the environment + accesses, which is important on NAND. + + - CONFIG_ENV_UBI_PART: + + Define this to a string that is the mtd partition containing the UBI. + + - CONFIG_ENV_UBI_VOLUME: + + Define this to the name of the volume that you want to store the + environment in. + + - CONFIG_ENV_UBI_VOLUME_REDUND: + + Define this to the name of another volume to store a second copy of + the environment in. This will enable redundant environments in UBI. + It is assumed that both volumes are in the same MTD partition. + + - CONFIG_UBI_SILENCE_MSG + - CONFIG_UBIFS_SILENCE_MSG + + You will probably want to define these to avoid a really noisy system + when storing the env in UBI. + +- CONFIG_ENV_IS_IN_MMC: + + Define this if you have an MMC device which you want to use for the + environment. + + - CONFIG_SYS_MMC_ENV_DEV: + + Specifies which MMC device the environment is stored in. + + - CONFIG_SYS_MMC_ENV_PART (optional): + + Specifies which MMC partition the environment is stored in. If not + set, defaults to partition 0, the user area. Common values might be + 1 (first MMC boot partition), 2 (second MMC boot partition). + + - CONFIG_ENV_OFFSET: + - CONFIG_ENV_SIZE: + + These two #defines specify the offset and size of the environment + area within the specified MMC device. + + If offset is positive (the usual case), it is treated as relative to + the start of the MMC partition. If offset is negative, it is treated + as relative to the end of the MMC partition. This can be useful if + your board may be fitted with different MMC devices, which have + different sizes for the MMC partitions, and you always want the + environment placed at the very end of the partition, to leave the + maximum possible space before it, to store other data. + + These two values are in units of bytes, but must be aligned to an + MMC sector boundary. + + - CONFIG_ENV_OFFSET_REDUND (optional): + + Specifies a second storage area, of CONFIG_ENV_SIZE size, used to + hold a redundant copy of the environment data. This provides a + valid backup copy in case the other copy is corrupted, e.g. due + to a power failure during a "saveenv" operation. + + This value may also be positive or negative; this is handled in the + same way as CONFIG_ENV_OFFSET. + + This value is also in units of bytes, but must also be aligned to + an MMC sector boundary. + + - CONFIG_ENV_SIZE_REDUND (optional): + + This value need not be set, even when CONFIG_ENV_OFFSET_REDUND is + set. If this value is set, it must be set to the same value as + CONFIG_ENV_SIZE. + - CONFIG_SYS_SPI_INIT_OFFSET Defines offset to the initial SPI buffer area in DPRAM. The @@ -3716,6 +3996,9 @@ Low Level (hardware related) configuration options: a second time. Useful for platforms that are pre-booted by coreboot or similar. +- CONFIG_PCI_INDIRECT_BRIDGE: + Enable support for indirect PCI bridges. + - CONFIG_SYS_SRIO: Chip has SRIO or not @@ -3725,6 +4008,9 @@ Low Level (hardware related) configuration options: - CONFIG_SRIO2: Board has SRIO 2 port available +- CONFIG_SRIO_PCIE_BOOT_MASTER + Board can support master function for Boot from SRIO and PCIE + - CONFIG_SYS_SRIOn_MEM_VIRT: Virtual Address of SRIO port 'n' memory region @@ -3734,9 +4020,13 @@ Low Level (hardware related) configuration options: - CONFIG_SYS_SRIOn_MEM_SIZE: Size of SRIO port 'n' memory region -- CONFIG_SYS_NDFC_16 - Defined to tell the NDFC that the NAND chip is using a - 16 bit bus. +- CONFIG_SYS_NAND_BUSWIDTH_16BIT + Defined to tell the NAND controller that the NAND chip is using + a 16 bit bus. + Not all NAND drivers use this symbol. + Example of drivers that use it: + - drivers/mtd/nand/ndfc.c + - drivers/mtd/nand/mxc_nand.c - CONFIG_SYS_NDFC_EBC0_CFG Sets the EBC0_CFG register for the NDFC. If not defined @@ -3831,6 +4121,11 @@ Low Level (hardware related) configuration options: that is executed before the actual U-Boot. E.g. when compiling a NAND SPL. +- CONFIG_SYS_MPC85XX_NO_RESETVEC + Only for 85xx systems. If this variable is specified, the section + .resetvec is not kept and the section .bootpg is placed in the + previous 4k of the .text section. + - CONFIG_ARCH_MAP_SYSMEM Generally U-Boot (and in particular the md command) uses effective address. It is therefore not necessary to regard @@ -3850,6 +4145,10 @@ Low Level (hardware related) configuration options: If defined, the x86 reset vector code is included. This is not needed when U-Boot is running from Coreboot. +- CONFIG_SYS_MPUCLK + Defines the MPU clock speed (in MHz). + + NOTE : currently only supported on AM335x platforms. Freescale QE/FMAN Firmware Support: ----------------------------------- @@ -4912,7 +5211,7 @@ 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 +Note, defining the CONFIG_SUPPORT_RAW_INITRD 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: ":".