arm: ti: Increase malloc size to 16MB for armv7 boards

[karo-tx-uboot.git] / README

diff --git a/README b/README
index 2fcad7ff856f408cc9e0122b4751cb41fb118794..7129df822c17c9c9bc5c7089ec54b0fed6381d01 100644 (file)
--- a/README
+++ b/README
@@ -132,6 +132,10 @@ Directory Hierarchy:
 ====================
 
 /arch                  Architecture specific files
 ====================
 
 /arch                  Architecture specific files

+  /arc                 Files generic to ARC architecture
+    /cpu               CPU specific files
+      /arc700          Files specific to ARC 700 CPUs
+    /lib               Architecture specific library files

   /arm                 Files generic to ARM architecture
     /cpu               CPU specific files
       /arm720t         Files specific to ARM 720 CPUs
   /arm                 Files generic to ARM architecture
     /cpu               CPU specific files
       /arm720t         Files specific to ARM 720 CPUs


@@ -139,10 +143,8 @@ Directory Hierarchy:
        /at91           Files specific to Atmel AT91RM9200 CPU
        /imx            Files specific to Freescale MC9328 i.MX CPUs
        /s3c24x0        Files specific to Samsung S3C24X0 CPUs
        /at91           Files specific to Atmel AT91RM9200 CPU
        /imx            Files specific to Freescale MC9328 i.MX CPUs
        /s3c24x0        Files specific to Samsung S3C24X0 CPUs

-      /arm925t         Files specific to ARM 925 CPUs

       /arm926ejs       Files specific to ARM 926 CPUs
       /arm1136         Files specific to ARM 1136 CPUs
       /arm926ejs       Files specific to ARM 926 CPUs
       /arm1136         Files specific to ARM 1136 CPUs

-      /ixp             Files specific to Intel XScale IXP CPUs

       /pxa             Files specific to Intel XScale PXA CPUs
       /sa1100          Files specific to Intel StrongARM SA1100 CPUs
     /lib               Architecture specific library files
       /pxa             Files specific to Intel XScale PXA CPUs
       /sa1100          Files specific to Intel StrongARM SA1100 CPUs
     /lib               Architecture specific library files


@@ -152,9 +154,6 @@ Directory Hierarchy:
   /blackfin            Files generic to Analog Devices Blackfin architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
   /blackfin            Files generic to Analog Devices Blackfin architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files

-  /x86                 Files generic to x86 architecture
-    /cpu               CPU specific files
-    /lib               Architecture specific library files

   /m68k                        Files generic to m68k architecture
     /cpu               CPU specific files
       /mcf52x2         Files specific to Freescale ColdFire MCF52x2 CPUs
   /m68k                        Files generic to m68k architecture
     /cpu               CPU specific files
       /mcf52x2         Files specific to Freescale ColdFire MCF52x2 CPUs


@@ -169,7 +168,7 @@ Directory Hierarchy:
   /mips                        Files generic to MIPS architecture
     /cpu               CPU specific files
       /mips32          Files specific to MIPS32 CPUs
   /mips                        Files generic to MIPS architecture
     /cpu               CPU specific files
       /mips32          Files specific to MIPS32 CPUs

-      /xburst          Files specific to Ingenic XBurst CPUs
+      /mips64          Files specific to MIPS64 CPUs

     /lib               Architecture specific library files
   /nds32               Files generic to NDS32 architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
   /nds32               Files generic to NDS32 architecture
     /cpu               CPU specific files


@@ -178,6 +177,9 @@ Directory Hierarchy:
   /nios2               Files generic to Altera NIOS2 architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files
   /nios2               Files generic to Altera NIOS2 architecture
     /cpu               CPU specific files
     /lib               Architecture specific library files

+  /openrisc            Files generic to OpenRISC architecture
+    /cpu               CPU specific files
+    /lib               Architecture specific library files

   /powerpc             Files generic to PowerPC architecture
     /cpu               CPU specific files
       /74xx_7xx                Files specific to Freescale MPC74xx and 7xx CPUs
   /powerpc             Files generic to PowerPC architecture
     /cpu               CPU specific files
       /74xx_7xx                Files specific to Freescale MPC74xx and 7xx CPUs


@@ -200,12 +202,16 @@ Directory Hierarchy:
       /leon2           Files specific to Gaisler LEON2 SPARC CPU
       /leon3           Files specific to Gaisler LEON3 SPARC CPU
     /lib               Architecture specific library files
       /leon2           Files specific to Gaisler LEON2 SPARC CPU
       /leon3           Files specific to Gaisler LEON3 SPARC CPU
     /lib               Architecture specific library files

+  /x86                 Files generic to x86 architecture
+    /cpu               CPU specific files
+    /lib               Architecture specific library files

 /api                   Machine/arch independent API for external apps
 /board                 Board dependent files
 /common                        Misc architecture independent functions
 /disk                  Code for disk drive partition handling
 /doc                   Documentation (don't expect too much)
 /drivers               Commonly used device drivers
 /api                   Machine/arch independent API for external apps
 /board                 Board dependent files
 /common                        Misc architecture independent functions
 /disk                  Code for disk drive partition handling
 /doc                   Documentation (don't expect too much)
 /drivers               Commonly used device drivers

+/dts                   Contains Makefile for building internal U-Boot fdt.

 /examples              Example code for standalone applications, etc.
 /fs                    Filesystem code (cramfs, ext2, jffs2, etc.)
 /include               Header Files
 /examples              Example code for standalone applications, etc.
 /fs                    Filesystem code (cramfs, ext2, jffs2, etc.)
 /include               Header Files


@@ -215,7 +221,7 @@ Directory Hierarchy:
   /lzo                 Library files to support LZO decompression
 /net                   Networking code
 /post                  Power On Self Test
   /lzo                 Library files to support LZO decompression
 /net                   Networking code
 /post                  Power On Self Test

-/rtc                   Real Time Clock drivers
+/spl                   Secondary Program Loader framework

 /tools                 Tools to build S-Record or U-Boot images, etc.
 
 Software Configuration:
 /tools                 Tools to build S-Record or U-Boot images, etc.
 
 Software Configuration:


@@ -258,6 +264,17 @@ e.g. "make cogent_mpc8xx_config". And also configure the cogent
 directory according to the instructions in cogent/README.
 
 
 directory according to the instructions in cogent/README.
 
 

+Sandbox Environment:
+--------------------
+
+U-Boot can be built natively to run on a Linux host using the 'sandbox'
+board. This allows feature development which is not board- or architecture-
+specific to be undertaken on a native platform. The sandbox is also used to
+run some of U-Boot's tests.
+
+See board/sandbox/sandbox/README.sandbox for more details.
+
+

 Configuration Options:
 ----------------------
 
 Configuration Options:
 ----------------------
 


@@ -304,14 +321,6 @@ The following options need to be configured:
                                          the LCD display every second with
                                          a "rotator" |\-/|\-/
 
                                          the LCD display every second with
                                          a "rotator" |\-/|\-/
 

-- Board flavour: (if CONFIG_MPC8260ADS is defined)
-               CONFIG_ADSTYPE
-               Possible values are:
-                       CONFIG_SYS_8260ADS      - original MPC8260ADS
-                       CONFIG_SYS_8266ADS      - MPC8266ADS
-                       CONFIG_SYS_PQ2FADS      - PQ2FADS-ZU or PQ2FADS-VR
-                       CONFIG_SYS_8272ADS      - MPC8272ADS
-

 - Marvell Family Member
                CONFIG_SYS_MVFS         - define it if you want to enable
                                          multiple fs option at one time
 - Marvell Family Member
                CONFIG_SYS_MVFS         - define it if you want to enable
                                          multiple fs option at one time


@@ -420,16 +429,115 @@ The following options need to be configured:
                CONFIG_SYS_FSL_DSP_CCSRBAR_DEFAULT
                This value denotes start offset of DSP CCSR space.
 
                CONFIG_SYS_FSL_DSP_CCSRBAR_DEFAULT
                This value denotes start offset of DSP CCSR space.
 

-               CONFIG_SYS_FSL_DDR_EMU
-               Specify emulator support for DDR. Some DDR features such as
-               deskew training are not available.
+               CONFIG_SYS_FSL_SINGLE_SOURCE_CLK
+               Single Source Clock is clocking mode present in some of FSL SoC's.
+               In this mode, a single differential clock is used to supply
+               clocks to the sysclock, ddrclock and usbclock.
+
+               CONFIG_SYS_CPC_REINIT_F
+               This CONFIG is defined when the CPC is configured as SRAM at the
+               time of U-boot entry and is required to be re-initialized.
+
+               CONFIG_DEEP_SLEEP
+               Inidcates this SoC supports deep sleep feature. If deep sleep is
+               supported, core will start to execute uboot when wakes up.

 
 - Generic CPU options:
 
 - Generic CPU options:

+               CONFIG_SYS_GENERIC_GLOBAL_DATA
+               Defines global data is initialized in generic board board_init_f().
+               If this macro is defined, global data is created and cleared in
+               generic board board_init_f(). Without this macro, architecture/board
+               should initialize global data before calling board_init_f().
+

                CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
 
                Defines the endianess of the CPU. Implementation of those
                values is arch specific.
 
                CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
 
                Defines the endianess of the CPU. Implementation of those
                values is arch specific.
 

+               CONFIG_SYS_FSL_DDR
+               Freescale DDR driver in use. This type of DDR controller is
+               found in mpc83xx, mpc85xx, mpc86xx as well as some ARM core
+               SoCs.
+
+               CONFIG_SYS_FSL_DDR_ADDR
+               Freescale DDR memory-mapped register base.
+
+               CONFIG_SYS_FSL_DDR_EMU
+               Specify emulator support for DDR. Some DDR features such as
+               deskew training are not available.
+
+               CONFIG_SYS_FSL_DDRC_GEN1
+               Freescale DDR1 controller.
+
+               CONFIG_SYS_FSL_DDRC_GEN2
+               Freescale DDR2 controller.
+
+               CONFIG_SYS_FSL_DDRC_GEN3
+               Freescale DDR3 controller.
+
+               CONFIG_SYS_FSL_DDRC_GEN4
+               Freescale DDR4 controller.
+
+               CONFIG_SYS_FSL_DDRC_ARM_GEN3
+               Freescale DDR3 controller for ARM-based SoCs.
+
+               CONFIG_SYS_FSL_DDR1
+               Board config to use DDR1. It can be enabled for SoCs with
+               Freescale DDR1 or DDR2 controllers, depending on the board
+               implemetation.
+
+               CONFIG_SYS_FSL_DDR2
+               Board config to use DDR2. It can be eanbeld for SoCs with
+               Freescale DDR2 or DDR3 controllers, depending on the board
+               implementation.
+
+               CONFIG_SYS_FSL_DDR3
+               Board config to use DDR3. It can be enabled for SoCs with
+               Freescale DDR3 or DDR3L controllers.
+
+               CONFIG_SYS_FSL_DDR3L
+               Board config to use DDR3L. It can be enabled for SoCs with
+               DDR3L controllers.
+
+               CONFIG_SYS_FSL_DDR4
+               Board config to use DDR4. It can be enabled for SoCs with
+               DDR4 controllers.
+
+               CONFIG_SYS_FSL_IFC_BE
+               Defines the IFC controller register space as Big Endian
+
+               CONFIG_SYS_FSL_IFC_LE
+               Defines the IFC controller register space as Little Endian
+
+               CONFIG_SYS_FSL_PBL_PBI
+               It enables addition of RCW (Power on reset configuration) in built image.
+               Please refer doc/README.pblimage for more details
+
+               CONFIG_SYS_FSL_PBL_RCW
+               It adds PBI(pre-boot instructions) commands in u-boot build image.
+               PBI commands can be used to configure SoC before it starts the execution.
+               Please refer doc/README.pblimage for more details
+
+               CONFIG_SPL_FSL_PBL
+               It adds a target to create boot binary having SPL binary in PBI format
+               concatenated with u-boot binary.
+
+               CONFIG_SYS_FSL_DDR_BE
+               Defines the DDR controller register space as Big Endian
+
+               CONFIG_SYS_FSL_DDR_LE
+               Defines the DDR controller register space as Little Endian
+
+               CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY
+               Physical address from the view of DDR controllers. It is the
+               same as CONFIG_SYS_DDR_SDRAM_BASE for  all Power SoCs. But
+               it could be different for ARM SoCs.
+
+               CONFIG_SYS_FSL_DDR_INTLV_256B
+               DDR controller interleaving on 256-byte. This is a special
+               interleaving mode, handled by Dickens for Freescale layerscape
+               SoCs with ARM core.
+

 - Intel Monahans options:
                CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
 
 - Intel Monahans options:
                CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
 


@@ -494,6 +602,8 @@ The following options need to be configured:
                CONFIG_ARM_ERRATA_742230
                CONFIG_ARM_ERRATA_743622
                CONFIG_ARM_ERRATA_751472
                CONFIG_ARM_ERRATA_742230
                CONFIG_ARM_ERRATA_743622
                CONFIG_ARM_ERRATA_751472

+               CONFIG_ARM_ERRATA_794072
+               CONFIG_ARM_ERRATA_761320

 
                If set, the workarounds for these ARM errata are applied early
                during U-Boot startup. Note that these options force the
 
                If set, the workarounds for these ARM errata are applied early
                during U-Boot startup. Note that these options force the


@@ -639,6 +749,10 @@ 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.
 
                boot loader that has already initialized the UART.  Define this
                variable to flush the UART at init time.
 

+               CONFIG_SERIAL_HW_FLOW_CONTROL
+
+               Define this variable to enable hw flow control in serial driver.
+               Current user of this option is drivers/serial/nsl16550.c driver

 
 - Console Interface:
                Depending on board, define exactly one serial port
 
 - Console Interface:
                Depending on board, define exactly one serial port


@@ -702,6 +816,11 @@ The following options need to be configured:
                the "silent" environment variable. See
                doc/README.silent for more information.
 
                the "silent" environment variable. See
                doc/README.silent for more information.
 

+               CONFIG_SYS_CONSOLE_BG_COL: define the backgroundcolor, default
+                       is 0x00.
+               CONFIG_SYS_CONSOLE_FG_COL: define the foregroundcolor, default
+                       is 0xa0.
+

 - Console Baudrate:
                CONFIG_BAUDRATE - in bps
                Select one of the baudrates listed in
 - Console Baudrate:
                CONFIG_BAUDRATE - in bps
                Select one of the baudrates listed in


@@ -776,6 +895,22 @@ The following options need to be configured:
                as a convenience, when switching between booting from
                RAM and NFS.
 
                as a convenience, when switching between booting from
                RAM and NFS.
 

+- Bootcount:
+               CONFIG_BOOTCOUNT_LIMIT
+               Implements a mechanism for detecting a repeating reboot
+               cycle, see:
+               http://www.denx.de/wiki/view/DULG/UBootBootCountLimit
+
+               CONFIG_BOOTCOUNT_ENV
+               If no softreset save registers are found on the hardware
+               "bootcount" is stored in the environment. To prevent a
+               saveenv on all reboots, the environment variable
+               "upgrade_available" is used. If "upgrade_available" is
+               0, "bootcount" is always 0, if "upgrade_available" is
+               1 "bootcount" is incremented in the environment.
+               So the Userspace Applikation must set the "upgrade_available"
+               and "bootcount" variable to 0, if a boot was successfully.
+

 - Pre-Boot Commands:
                CONFIG_PREBOOT
 
 - Pre-Boot Commands:
                CONFIG_PREBOOT
 


@@ -817,6 +952,7 @@ The following options need to be configured:
                The default command configuration includes all commands
                except those marked below with a "*".
 
                The default command configuration includes all commands
                except those marked below with a "*".
 

+               CONFIG_CMD_AES            AES 128 CBC encrypt/decrypt

                CONFIG_CMD_ASKENV       * ask for env variable
                CONFIG_CMD_BDI            bdinfo
                CONFIG_CMD_BEDBUG       * Include BedBug Debugger
                CONFIG_CMD_ASKENV       * ask for env variable
                CONFIG_CMD_BDI            bdinfo
                CONFIG_CMD_BEDBUG       * Include BedBug Debugger


@@ -824,6 +960,7 @@ The following options need to be configured:
                CONFIG_CMD_BSP          * Board specific commands
                CONFIG_CMD_BOOTD          bootd
                CONFIG_CMD_CACHE        * icache, dcache
                CONFIG_CMD_BSP          * Board specific commands
                CONFIG_CMD_BOOTD          bootd
                CONFIG_CMD_CACHE        * icache, dcache

+               CONFIG_CMD_CLK          * clock command support

                CONFIG_CMD_CONSOLE        coninfo
                CONFIG_CMD_CRC32        * crc32
                CONFIG_CMD_DATE         * support for RTC, date/time...
                CONFIG_CMD_CONSOLE        coninfo
                CONFIG_CMD_CRC32        * crc32
                CONFIG_CMD_DATE         * support for RTC, date/time...


@@ -840,13 +977,15 @@ The following options need to be configured:
                CONFIG_CMD_ELF          * bootelf, bootvx
                CONFIG_CMD_ENV_CALLBACK * display details about env callbacks
                CONFIG_CMD_ENV_FLAGS    * display details about env flags
                CONFIG_CMD_ELF          * bootelf, bootvx
                CONFIG_CMD_ENV_CALLBACK * display details about env callbacks
                CONFIG_CMD_ENV_FLAGS    * display details about env flags

+               CONFIG_CMD_ENV_EXISTS   * check existence of env variable

                CONFIG_CMD_EXPORTENV    * export the environment
                CONFIG_CMD_EXT2         * ext2 command support
                CONFIG_CMD_EXT4         * ext4 command support
                CONFIG_CMD_EXPORTENV    * export the environment
                CONFIG_CMD_EXT2         * ext2 command support
                CONFIG_CMD_EXT4         * ext4 command support

+               CONFIG_CMD_FS_GENERIC   * filesystem commands (e.g. load, ls)
+                                         that work for multiple fs types

                CONFIG_CMD_SAVEENV        saveenv
                CONFIG_CMD_FDC          * Floppy Disk Support
                CONFIG_CMD_FAT          * FAT command support
                CONFIG_CMD_SAVEENV        saveenv
                CONFIG_CMD_FDC          * Floppy Disk Support
                CONFIG_CMD_FAT          * FAT command support

-               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_FLASH          flinfo, erase, protect
                CONFIG_CMD_FPGA           FPGA device initialization support
                CONFIG_CMD_FUSE         * Device fuse support


@@ -916,7 +1055,7 @@ The following options need to be configured:
                CONFIG_CMD_CDP          * Cisco Discover Protocol support
                CONFIG_CMD_MFSL         * Microblaze FSL support
                CONFIG_CMD_XIMG           Load part of Multi Image
                CONFIG_CMD_CDP          * Cisco Discover Protocol support
                CONFIG_CMD_MFSL         * Microblaze FSL support
                CONFIG_CMD_XIMG           Load part of Multi Image

-
+               CONFIG_CMD_UUID         * Generate random UUID or GUID string

 
                EXAMPLE: If you want all functions except of network
                support you can write:
 
                EXAMPLE: If you want all functions except of network
                support you can write:


@@ -941,10 +1080,10 @@ The following options need to be configured:
 
 - Regular expression support:
                CONFIG_REGEX
 
 - 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".
+               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
 
 - Device tree:
                CONFIG_OF_CONTROL


@@ -1024,7 +1163,6 @@ The following options need to be configured:
 
 - GPIO Support:
                CONFIG_PCA953X          - use NXP's PCA953X series I2C GPIO
 
 - GPIO Support:
                CONFIG_PCA953X          - use NXP's PCA953X series I2C GPIO

-               CONFIG_PCA953X_INFO     - enable pca953x info command

 
                The CONFIG_SYS_I2C_PCA953X_WIDTH option specifies a list of
                chip-ngpio pairs that tell the PCA953X driver the number of
 
                The CONFIG_SYS_I2C_PCA953X_WIDTH option specifies a list of
                chip-ngpio pairs that tell the PCA953X driver the number of


@@ -1093,8 +1231,8 @@ The following options need to be configured:
                devices.
                CONFIG_SYS_SCSI_SYM53C8XX_CCF to fix clock timing (80Mhz)
 
                devices.
                CONFIG_SYS_SCSI_SYM53C8XX_CCF to fix clock timing (80Mhz)
 

-                The environment variable 'scsidevs' is set to the number of
-                SCSI devices found during the last scan.
+               The environment variable 'scsidevs' is set to the number of
+               SCSI devices found during the last scan.

 
 - NETWORK Support (PCI):
                CONFIG_E1000
 
 - NETWORK Support (PCI):
                CONFIG_E1000


@@ -1286,9 +1424,6 @@ 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_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
 - USB Device:
                Define the below if you wish to use the USB console.
                Once firmware is rebuilt from a serial console issue the


@@ -1388,6 +1523,16 @@ The following options need to be configured:
                        CONFIG_SH_MMCIF_CLK
                        Define the clock frequency for MMCIF
 
                        CONFIG_SH_MMCIF_CLK
                        Define the clock frequency for MMCIF
 

+               CONFIG_GENERIC_MMC
+               Enable the generic MMC driver
+
+               CONFIG_SUPPORT_EMMC_BOOT
+               Enable some additional features of the eMMC boot partitions.
+
+               CONFIG_SUPPORT_EMMC_RPMB
+               Enable the commands for reading, writing and programming the
+               key for the Replay Protection Memory Block partition in eMMC.
+

 - USB Device Firmware Update (DFU) class support:
                CONFIG_DFU_FUNCTION
                This enables the USB portion of the DFU USB class
 - USB Device Firmware Update (DFU) class support:
                CONFIG_DFU_FUNCTION
                This enables the USB portion of the DFU USB class


@@ -1404,6 +1549,12 @@ The following options need to be configured:
                CONFIG_DFU_NAND
                This enables support for exposing NAND devices via DFU.
 
                CONFIG_DFU_NAND
                This enables support for exposing NAND devices via DFU.
 

+               CONFIG_DFU_RAM
+               This enables support for exposing RAM via DFU.
+               Note: DFU spec refer to non-volatile memory usage, but
+               allow usages beyond the scope of spec - here RAM usage,
+               one that would help mostly the developer.
+

                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
                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


@@ -1417,6 +1568,38 @@ The following options need to be configured:
                this to the maximum filesize (in bytes) for the buffer.
                Default is 4 MiB if undefined.
 
                this to the maximum filesize (in bytes) for the buffer.
                Default is 4 MiB if undefined.
 

+               DFU_DEFAULT_POLL_TIMEOUT
+               Poll timeout [ms], is the timeout a device can send to the
+               host. The host must wait for this timeout before sending
+               a subsequent DFU_GET_STATUS request to the device.
+
+               DFU_MANIFEST_POLL_TIMEOUT
+               Poll timeout [ms], which the device sends to the host when
+               entering dfuMANIFEST state. Host waits this timeout, before
+               sending again an USB request to the device.
+
+- USB Device Android Fastboot support:
+               CONFIG_CMD_FASTBOOT
+               This enables the command "fastboot" which enables the Android
+               fastboot mode for the platform's USB device. Fastboot is a USB
+               protocol for downloading images, flashing and device control
+               used on Android devices.
+               See doc/README.android-fastboot for more information.
+
+               CONFIG_ANDROID_BOOT_IMAGE
+               This enables support for booting images which use the Android
+               image format header.
+
+               CONFIG_USB_FASTBOOT_BUF_ADDR
+               The fastboot protocol requires a large memory buffer for
+               downloads. Define this to the starting RAM address to use for
+               downloaded images.
+
+               CONFIG_USB_FASTBOOT_BUF_SIZE
+               The fastboot protocol requires a large memory buffer for
+               downloads. This buffer should be as large as possible for a
+               platform. Define this to the size available RAM for fastboot.
+

 - Journaling Flash filesystem support:
                CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
                CONFIG_JFFS2_NAND_DEV
 - Journaling Flash filesystem support:
                CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
                CONFIG_JFFS2_NAND_DEV


@@ -1451,6 +1634,12 @@ CBFS (Coreboot Filesystem) support
                filesystem. Available commands are cbfsinit, cbfsinfo, cbfsls
                and cbfsload.
 
                filesystem. Available commands are cbfsinit, cbfsinfo, cbfsls
                and cbfsload.
 

+- FAT(File Allocation Table) filesystem cluster size:
+               CONFIG_FS_FAT_MAX_CLUSTSIZE
+
+               Define the max cluster size for fat operations else
+               a default value of 65536 will be defined.
+

 - Keyboard Support:
                CONFIG_ISA_KEYBOARD
 
 - Keyboard Support:
                CONFIG_ISA_KEYBOARD
 


@@ -1633,7 +1822,7 @@ CBFS (Coreboot Filesystem) support
 
                If this option is set, then U-Boot will prevent the environment
                variable "splashimage" from being set to a problematic address
 
                If this option is set, then U-Boot will prevent the environment
                variable "splashimage" from being set to a problematic address

-               (see README.displaying-bmps and README.arm-unaligned-accesses).
+               (see README.displaying-bmps).

                This option is useful for targets where, due to alignment
                restrictions, an improperly aligned BMP image will cause a data
                abort. If you think you will not have problems with unaligned
                This option is useful for targets where, due to alignment
                restrictions, an improperly aligned BMP image will cause a data
                abort. If you think you will not have problems with unaligned


@@ -1942,6 +2131,21 @@ CBFS (Coreboot Filesystem) support
                kernel). Defining CONFIG_STATUS_LED enables this
                feature in U-Boot.
 
                kernel). Defining CONFIG_STATUS_LED enables this
                feature in U-Boot.
 

+               Additional options:
+
+               CONFIG_GPIO_LED
+               The status LED can be connected to a GPIO pin.
+               In such cases, the gpio_led driver can be used as a
+               status LED backend implementation. Define CONFIG_GPIO_LED
+               to include the gpio_led driver in the U-Boot binary.
+
+               CONFIG_GPIO_LED_INVERTED_TABLE
+               Some GPIO connected LEDs may have inverted polarity in which
+               case the GPIO high value corresponds to LED off state and
+               GPIO low value corresponds to LED on state.
+               In such cases CONFIG_GPIO_LED_INVERTED_TABLE may be defined
+               with a list of GPIO LEDs that have inverted polarity.
+

 - CAN Support: CONFIG_CAN_DRIVER
 
                Defining CONFIG_CAN_DRIVER enables CAN driver support
 - CAN Support: CONFIG_CAN_DRIVER
 
                Defining CONFIG_CAN_DRIVER enables CAN driver support


@@ -1978,22 +2182,89 @@ CBFS (Coreboot Filesystem) support
                    offset CONFIG_SYS_FSL_I2C_SPEED for the i2c speed and
                    CONFIG_SYS_FSL_I2C_SLAVE for the slave addr of the first
                    bus.
                    offset CONFIG_SYS_FSL_I2C_SPEED for the i2c speed and
                    CONFIG_SYS_FSL_I2C_SLAVE for the slave addr of the first
                    bus.

-                  - If your board supports a second fsl i2c bus, define
+                 - If your board supports a second fsl i2c bus, define

                    CONFIG_SYS_FSL_I2C2_OFFSET for the register offset
                    CONFIG_SYS_FSL_I2C2_SPEED for the speed and
                    CONFIG_SYS_FSL_I2C2_SLAVE for the slave address of the
                    second bus.
 
                - drivers/i2c/tegra_i2c.c:
                    CONFIG_SYS_FSL_I2C2_OFFSET for the register offset
                    CONFIG_SYS_FSL_I2C2_SPEED for the speed and
                    CONFIG_SYS_FSL_I2C2_SLAVE for the slave address of the
                    second bus.
 
                - drivers/i2c/tegra_i2c.c:

-                - activate this driver with CONFIG_SYS_I2C_TEGRA
-                - This driver adds 4 i2c buses with a fix speed from
-                  100000 and the slave addr 0!
+                 - activate this driver with CONFIG_SYS_I2C_TEGRA
+                 - This driver adds 4 i2c buses with a fix speed from
+                   100000 and the slave addr 0!

 
                - drivers/i2c/ppc4xx_i2c.c
                  - activate this driver with CONFIG_SYS_I2C_PPC4XX
                  - CONFIG_SYS_I2C_PPC4XX_CH0 activate hardware channel 0
                  - CONFIG_SYS_I2C_PPC4XX_CH1 activate hardware channel 1
 
 
                - drivers/i2c/ppc4xx_i2c.c
                  - activate this driver with CONFIG_SYS_I2C_PPC4XX
                  - CONFIG_SYS_I2C_PPC4XX_CH0 activate hardware channel 0
                  - CONFIG_SYS_I2C_PPC4XX_CH1 activate hardware channel 1
 

+               - drivers/i2c/i2c_mxc.c
+                 - activate this driver with CONFIG_SYS_I2C_MXC
+                 - define speed for bus 1 with CONFIG_SYS_MXC_I2C1_SPEED
+                 - define slave for bus 1 with CONFIG_SYS_MXC_I2C1_SLAVE
+                 - define speed for bus 2 with CONFIG_SYS_MXC_I2C2_SPEED
+                 - define slave for bus 2 with CONFIG_SYS_MXC_I2C2_SLAVE
+                 - define speed for bus 3 with CONFIG_SYS_MXC_I2C3_SPEED
+                 - define slave for bus 3 with CONFIG_SYS_MXC_I2C3_SLAVE
+               If thoses defines are not set, default value is 100000
+               for speed, and 0 for slave.
+
+               - drivers/i2c/rcar_i2c.c:
+                 - activate this driver with CONFIG_SYS_I2C_RCAR
+                 - This driver adds 4 i2c buses
+
+                 - CONFIG_SYS_RCAR_I2C0_BASE for setting the register channel 0
+                 - CONFIG_SYS_RCAR_I2C0_SPEED for for the speed channel 0
+                 - CONFIG_SYS_RCAR_I2C1_BASE for setting the register channel 1
+                 - CONFIG_SYS_RCAR_I2C1_SPEED for for the speed channel 1
+                 - CONFIG_SYS_RCAR_I2C2_BASE for setting the register channel 2
+                 - CONFIG_SYS_RCAR_I2C2_SPEED for for the speed channel 2
+                 - CONFIG_SYS_RCAR_I2C3_BASE for setting the register channel 3
+                 - CONFIG_SYS_RCAR_I2C3_SPEED for for the speed channel 3
+                 - CONFIF_SYS_RCAR_I2C_NUM_CONTROLLERS for number of i2c buses
+
+               - drivers/i2c/sh_i2c.c:
+                 - activate this driver with CONFIG_SYS_I2C_SH
+                 - This driver adds from 2 to 5 i2c buses
+
+                 - CONFIG_SYS_I2C_SH_BASE0 for setting the register channel 0
+                 - CONFIG_SYS_I2C_SH_SPEED0 for for the speed channel 0
+                 - CONFIG_SYS_I2C_SH_BASE1 for setting the register channel 1
+                 - CONFIG_SYS_I2C_SH_SPEED1 for for the speed channel 1
+                 - CONFIG_SYS_I2C_SH_BASE2 for setting the register channel 2
+                 - CONFIG_SYS_I2C_SH_SPEED2 for for the speed channel 2
+                 - CONFIG_SYS_I2C_SH_BASE3 for setting the register channel 3
+                 - CONFIG_SYS_I2C_SH_SPEED3 for for the speed channel 3
+                 - CONFIG_SYS_I2C_SH_BASE4 for setting the register channel 4
+                 - CONFIG_SYS_I2C_SH_SPEED4 for for the speed channel 4
+                 - CONFIG_SYS_I2C_SH_BASE5 for setting the register channel 5
+                 - CONFIG_SYS_I2C_SH_SPEED5 for for the speed channel 5
+                 - CONFIF_SYS_I2C_SH_NUM_CONTROLLERS for nummber of i2c buses
+
+               - drivers/i2c/omap24xx_i2c.c
+                 - activate this driver with CONFIG_SYS_I2C_OMAP24XX
+                 - CONFIG_SYS_OMAP24_I2C_SPEED speed channel 0
+                 - CONFIG_SYS_OMAP24_I2C_SLAVE slave addr channel 0
+                 - CONFIG_SYS_OMAP24_I2C_SPEED1 speed channel 1
+                 - CONFIG_SYS_OMAP24_I2C_SLAVE1 slave addr channel 1
+                 - CONFIG_SYS_OMAP24_I2C_SPEED2 speed channel 2
+                 - CONFIG_SYS_OMAP24_I2C_SLAVE2 slave addr channel 2
+                 - CONFIG_SYS_OMAP24_I2C_SPEED3 speed channel 3
+                 - CONFIG_SYS_OMAP24_I2C_SLAVE3 slave addr channel 3
+                 - CONFIG_SYS_OMAP24_I2C_SPEED4 speed channel 4
+                 - CONFIG_SYS_OMAP24_I2C_SLAVE4 slave addr channel 4
+
+               - drivers/i2c/zynq_i2c.c
+                 - activate this driver with CONFIG_SYS_I2C_ZYNQ
+                 - set CONFIG_SYS_I2C_ZYNQ_SPEED for speed setting
+                 - set CONFIG_SYS_I2C_ZYNQ_SLAVE for slave addr
+
+               - drivers/i2c/s3c24x0_i2c.c:
+                 - activate this driver with CONFIG_SYS_I2C_S3C24X0
+                 - This driver adds i2c buses (11 for Exynos5250, Exynos5420
+                   9 i2c buses for Exynos4 and 1 for S3C24X0 SoCs from Samsung)
+                   with a fix speed from 100000 and the slave addr 0!
+

                additional defines:
 
                CONFIG_SYS_NUM_I2C_BUSES
                additional defines:
 
                CONFIG_SYS_NUM_I2C_BUSES


@@ -2306,6 +2577,19 @@ CBFS (Coreboot Filesystem) support
 
                Specify the number of FPGA devices to support.
 
 
                Specify the number of FPGA devices to support.
 

+               CONFIG_CMD_FPGA_LOADMK
+
+               Enable support for fpga loadmk command
+
+               CONFIG_CMD_FPGA_LOADP
+
+               Enable support for fpga loadp command - load partial bitstream
+
+               CONFIG_CMD_FPGA_LOADBP
+
+               Enable support for fpga loadbp command - load partial bitstream
+               (Xilinx only)
+

                CONFIG_SYS_FPGA_PROG_FEEDBACK
 
                Enable printing of hash marks during FPGA configuration.
                CONFIG_SYS_FPGA_PROG_FEEDBACK
 
                Enable printing of hash marks during FPGA configuration.


@@ -2598,6 +2882,12 @@ CBFS (Coreboot Filesystem) support
                Define this option to use the Bank addr/Extended addr
                support on SPI flashes which has size > 16Mbytes.
 
                Define this option to use the Bank addr/Extended addr
                support on SPI flashes which has size > 16Mbytes.
 

+               CONFIG_SF_DUAL_FLASH            Dual flash memories
+
+               Define this option to use dual flash support where two flash
+               memories can be connected with a given cs line.
+               currently Xilinx Zynq qspi support these type of connections.
+

 - SystemACE Support:
                CONFIG_SYSTEMACE
 
 - SystemACE Support:
                CONFIG_SYSTEMACE
 


@@ -2668,11 +2958,31 @@ CBFS (Coreboot Filesystem) support
                CONFIG_RSA
 
                This enables the RSA algorithm used for FIT image verification
                CONFIG_RSA
 
                This enables the RSA algorithm used for FIT image verification

-               in U-Boot. See doc/uImage/signature for more information.
+               in U-Boot. See doc/uImage.FIT/signature.txt for more information.

 
                The signing part is build into mkimage regardless of this
                option.
 
 
                The signing part is build into mkimage regardless of this
                option.
 

+- bootcount support:
+               CONFIG_BOOTCOUNT_LIMIT
+
+               This enables the bootcounter support, see:
+               http://www.denx.de/wiki/DULG/UBootBootCountLimit
+
+               CONFIG_AT91SAM9XE
+               enable special bootcounter support on at91sam9xe based boards.
+               CONFIG_BLACKFIN
+               enable special bootcounter support on blackfin based boards.
+               CONFIG_SOC_DA8XX
+               enable special bootcounter support on da850 based boards.
+               CONFIG_BOOTCOUNT_RAM
+               enable support for the bootcounter in RAM
+               CONFIG_BOOTCOUNT_I2C
+               enable support for the bootcounter on an i2c (like RTC) device.
+                       CONFIG_SYS_I2C_RTC_ADDR = i2c chip address
+                       CONFIG_SYS_BOOTCOUNT_ADDR = i2c addr which is used for
+                                                   the bootcounter.
+                       CONFIG_BOOTCOUNT_ALEN = address len

 
 - Show boot progress:
                CONFIG_SHOW_BOOT_PROGRESS
 
 - Show boot progress:
                CONFIG_SHOW_BOOT_PROGRESS


@@ -2887,6 +3197,19 @@ FIT uImage format:
  -150  common/cmd_nand.c       Incorrect FIT image format
   151  common/cmd_nand.c       FIT image format OK
 
  -150  common/cmd_nand.c       Incorrect FIT image format
   151  common/cmd_nand.c       FIT image format OK
 

+- legacy image format:
+               CONFIG_IMAGE_FORMAT_LEGACY
+               enables the legacy image format support in U-Boot.
+
+               Default:
+               enabled if CONFIG_FIT_SIGNATURE is not defined.
+
+               CONFIG_DISABLE_IMAGE_LEGACY
+               disable the legacy image format
+
+               This define is introduced, as the legacy image format is
+               enabled per default for backward compatibility.
+

 - FIT image support:
                CONFIG_FIT
                Enable support for the FIT uImage format.
 - FIT image support:
                CONFIG_FIT
                Enable support for the FIT uImage format.


@@ -2903,6 +3226,11 @@ FIT uImage format:
                using a hash signed and verified using RSA. See
                doc/uImage.FIT/signature.txt for more details.
 
                using a hash signed and verified using RSA. See
                doc/uImage.FIT/signature.txt for more details.
 

+               WARNING: When relying on signed FIT images with required
+               signature check the legacy image format is default
+               disabled. If a board need legacy image format support
+               enable this through CONFIG_IMAGE_FORMAT_LEGACY
+

 - Standalone program support:
                CONFIG_STANDALONE_LOAD_ADDR
 
 - Standalone program support:
                CONFIG_STANDALONE_LOAD_ADDR
 


@@ -3026,6 +3354,10 @@ FIT uImage format:
                supports MMC, NAND and YMODEM loading of U-Boot and NAND
                NAND loading of the Linux Kernel.
 
                supports MMC, NAND and YMODEM loading of U-Boot and NAND
                NAND loading of the Linux Kernel.
 

+               CONFIG_SPL_OS_BOOT
+               Enable booting directly to an OS from SPL.
+               See also: doc/README.falcon
+

                CONFIG_SPL_DISPLAY_PRINT
                For ARM, enable an optional function to print more information
                about the running system.
                CONFIG_SPL_DISPLAY_PRINT
                For ARM, enable an optional function to print more information
                about the running system.


@@ -3084,6 +3416,9 @@ FIT uImage format:
                continuing (the hardware starts execution after just
                loading the first page rather than the full 4K).
 
                continuing (the hardware starts execution after just
                loading the first page rather than the full 4K).
 

+               CONFIG_SPL_SKIP_RELOCATE
+               Avoid SPL relocation
+

                CONFIG_SPL_NAND_BASE
                Include nand_base.c in the SPL.  Requires
                CONFIG_SPL_NAND_DRIVERS.
                CONFIG_SPL_NAND_BASE
                Include nand_base.c in the SPL.  Requires
                CONFIG_SPL_NAND_DRIVERS.


@@ -3098,9 +3433,13 @@ FIT uImage format:
                Support for NAND boot using simple NAND drivers that
                expose the cmd_ctrl() interface.
 
                Support for NAND boot using simple NAND drivers that
                expose the cmd_ctrl() interface.
 

+               CONFIG_SPL_MTD_SUPPORT
+               Support for the MTD subsystem within SPL.  Useful for
+               environment on NAND support within SPL.
+

                CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
                Set for the SPL on PPC mpc8xxx targets, support for
                CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
                Set for the SPL on PPC mpc8xxx targets, support for

-               arch/powerpc/cpu/mpc8xxx/ddr/libddr.o in SPL binary.
+               drivers/ddr/fsl/libddr.o in SPL binary.

 
                CONFIG_SPL_COMMON_INIT_DDR
                Set for common ddr init with serial presence detect in
 
                CONFIG_SPL_COMMON_INIT_DDR
                Set for common ddr init with serial presence detect in


@@ -3114,6 +3453,9 @@ FIT uImage format:
                Defines the size and behavior of the NAND that SPL uses
                to read U-Boot
 
                Defines the size and behavior of the NAND that SPL uses
                to read U-Boot
 

+               CONFIG_SPL_NAND_BOOT
+               Add support NAND boot
+

                CONFIG_SYS_NAND_U_BOOT_OFFS
                Location in NAND to read U-Boot from
 
                CONFIG_SYS_NAND_U_BOOT_OFFS
                Location in NAND to read U-Boot from
 


@@ -3182,9 +3524,9 @@ FIT uImage format:
                CONFIG_TPL_PAD_TO
                Image offset to which the TPL should be padded before appending
                the TPL payload. By default, this is defined as
                CONFIG_TPL_PAD_TO
                Image offset to which the TPL should be padded before appending
                the TPL 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_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.

 
 Modem Support:
 --------------
 
 Modem Support:
 --------------


@@ -3251,6 +3593,9 @@ typically in board_init_f() and board_init_r().
 Configuration Settings:
 -----------------------
 
 Configuration Settings:
 -----------------------
 

+- CONFIG_SYS_SUPPORT_64BIT_DATA: Defined automatically if compiled as 64-bit.
+               Optionally it can be defined to support 64-bit memory commands.
+

 - CONFIG_SYS_LONGHELP: Defined when you want long help messages included;
                undefine this when you're short of memory.
 
 - CONFIG_SYS_LONGHELP: Defined when you want long help messages included;
                undefine this when you're short of memory.
 


@@ -3359,7 +3704,7 @@ Configuration Settings:
                the Linux kernel; all data that must be processed by
                the Linux kernel (bd_info, boot arguments, FDT blob if
                used) must be put below this limit, unless "bootm_low"
                the Linux kernel; all data that must be processed by
                the Linux kernel (bd_info, boot arguments, FDT blob if
                used) must be put below this limit, unless "bootm_low"

-               enviroment variable is defined and non-zero. In such case
+               environment variable is defined and non-zero. In such case

                all data for the Linux kernel must be between "bootm_low"
                and "bootm_low" + CONFIG_SYS_BOOTMAPSZ.  The environment
                variable "bootm_mapsize" will override the value of
                all data for the Linux kernel must be between "bootm_low"
                and "bootm_low" + CONFIG_SYS_BOOTMAPSZ.  The environment
                variable "bootm_mapsize" will override the value of


@@ -3472,7 +3817,7 @@ Configuration Settings:
 
 - CONFIG_ENV_FLAGS_LIST_DEFAULT
 - CONFIG_ENV_FLAGS_LIST_STATIC
 
 - CONFIG_ENV_FLAGS_LIST_DEFAULT
 - CONFIG_ENV_FLAGS_LIST_STATIC

-       Enable validation of the values given to enviroment variables when
+       Enable validation of the values given to environment variables when

        calling env set.  Variables can be restricted to only decimal,
        hexadecimal, or boolean.  If CONFIG_CMD_NET is also defined,
        the variables can also be restricted to IP address or MAC address.
        calling env set.  Variables can be restricted to only decimal,
        hexadecimal, or boolean.  If CONFIG_CMD_NET is also defined,
        the variables can also be restricted to IP address or MAC address.


@@ -3523,12 +3868,6 @@ Configuration Settings:
        its config.mk file). If you find problems enabling this option on
        your board please report the problem and send patches!
 
        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
 - 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


@@ -4257,6 +4596,14 @@ Low Level (hardware related) configuration options:
 
                NOTE : currently only supported on AM335x platforms.
 
 
                NOTE : currently only supported on AM335x platforms.
 

+- CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC:
+               Enables the RTC32K OSC on AM33xx based plattforms
+
+- CONFIG_SYS_NAND_NO_SUBPAGE_WRITE
+               Option to disable subpage write in NAND driver
+               driver that uses this:
+               drivers/mtd/nand/davinci_nand.c
+

 Freescale QE/FMAN Firmware Support:
 -----------------------------------
 
 Freescale QE/FMAN Firmware Support:
 -----------------------------------
 


@@ -4266,8 +4613,13 @@ This firmware often needs to be loaded during U-Boot booting, so macros
 are used to identify the storage device (NOR flash, SPI, etc) and the address
 within that device.
 
 are used to identify the storage device (NOR flash, SPI, etc) and the address
 within that device.
 

-- CONFIG_SYS_QE_FMAN_FW_ADDR
-       The address in the storage device where the firmware is located.  The
+- CONFIG_SYS_FMAN_FW_ADDR
+       The address in the storage device where the FMAN microcode is located.  The
+       meaning of this address depends on which CONFIG_SYS_QE_FW_IN_xxx macro
+       is also specified.
+
+- CONFIG_SYS_QE_FW_ADDR
+       The address in the storage device where the QE microcode is located.  The

        meaning of this address depends on which CONFIG_SYS_QE_FW_IN_xxx macro
        is also specified.
 
        meaning of this address depends on which CONFIG_SYS_QE_FW_IN_xxx macro
        is also specified.
 


@@ -5096,6 +5448,15 @@ when your kernel is intended to use an initial ramdisk:
        Load Address: 0x00000000
        Entry Point:  0x00000000
 
        Load Address: 0x00000000
        Entry Point:  0x00000000
 

+The "dumpimage" is a tool to disassemble images built by mkimage. Its "-i"
+option performs the converse operation of the mkimage's second form (the "-d"
+option). Given an image built by mkimage, the dumpimage extracts a "data file"
+from the image:
+
+       tools/dumpimage -i image -p position data_file
+         -i ==> extract from the 'image' a specific 'data_file', \
+          indexed by 'position'
+

 
 Installing a Linux Image:
 -------------------------
 
 Installing a Linux Image:
 -------------------------