Sound: Add FDT support to CMD.

[u-boot] / README

diff --git a/README b/README
index 8197235a37206885199b308bcadd419bb2cccf14..653ef6aa4a55d57686165e56eeec847dcd40b3f1 100644 (file)
--- a/README
+++ b/README
@@ -54,6 +54,11 @@ In case of problems see the CHANGELOG and CREDITS files to find out
 who contributed the specific port. The MAINTAINERS file lists board
 maintainers.
 
 who contributed the specific port. The MAINTAINERS file lists board
 maintainers.
 

+Note: There is no CHANGELOG file in the actual U-Boot source tree;
+it can be created dynamically from the Git log using:
+
+       make CHANGELOG
+

 
 Where to get help:
 ==================
 
 Where to get help:
 ==================


@@ -363,6 +368,12 @@ The following options need to be configured:
                ICache only when Code runs from RAM.
 
 - 85xx CPU Options:
                ICache only when Code runs from RAM.
 
 - 85xx CPU Options:

+               CONFIG_SYS_PPC64
+
+               Specifies that the core is a 64-bit PowerPC implementation (implements
+               the "64" category of the Power ISA). This is necessary for ePAPR
+               compliance, among other possible reasons.
+

                CONFIG_SYS_FSL_TBCLK_DIV
 
                Defines the core time base clock divider ratio compared to the
                CONFIG_SYS_FSL_TBCLK_DIV
 
                Defines the core time base clock divider ratio compared to the


@@ -655,6 +666,10 @@ The following options need to be configured:
                                                additional board info beside
                                                the logo
 
                                                additional board info beside
                                                the logo
 

+               When CONFIG_CFB_CONSOLE_ANSI is defined, console will support
+               a limited number of ANSI escape sequences (cursor control,
+               erase functions and limited graphics rendition control).
+

                When CONFIG_CFB_CONSOLE is defined, video console is
                default i/o. Serial console can be forced with
                environment 'console=serial'.
                When CONFIG_CFB_CONSOLE is defined, video console is
                default i/o. Serial console can be forced with
                environment 'console=serial'.


@@ -704,6 +719,8 @@ The following options need to be configured:
 - Boot Delay:  CONFIG_BOOTDELAY - in seconds
                Delay before automatically booting the default image;
                set to -1 to disable autoboot.
 - Boot Delay:  CONFIG_BOOTDELAY - in seconds
                Delay before automatically booting the default image;
                set to -1 to disable autoboot.

+               set to -2 to autoboot with no delay and not check for abort
+               (even when CONFIG_ZERO_BOOTDELAY_CHECK is defined).

 
                See doc/README.autoboot for these options that
                work with CONFIG_BOOTDELAY. None are required.
 
                See doc/README.autoboot for these options that
                work with CONFIG_BOOTDELAY. None are required.


@@ -769,8 +786,8 @@ The following options need to be configured:
 - Monitor Functions:
                Monitor commands can be included or excluded
                from the build by using the #include files
 - Monitor Functions:
                Monitor commands can be included or excluded
                from the build by using the #include files

-               "config_cmd_all.h" and #undef'ing unwanted
-               commands, or using "config_cmd_default.h"
+               <config_cmd_all.h> and #undef'ing unwanted
+               commands, or using <config_cmd_default.h>

                and augmenting with additional #define's
                for wanted commands.
 
                and augmenting with additional #define's
                for wanted commands.
 


@@ -798,15 +815,21 @@ The following options need to be configured:
                CONFIG_CMD_EDITENV        edit env variable
                CONFIG_CMD_EEPROM       * EEPROM read/write support
                CONFIG_CMD_ELF          * bootelf, bootvx
                CONFIG_CMD_EDITENV        edit env variable
                CONFIG_CMD_EEPROM       * EEPROM read/write support
                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_EXPORTENV    * export the environment
                CONFIG_CMD_EXPORTENV    * export the environment

+               CONFIG_CMD_EXT2         * ext2 command support
+               CONFIG_CMD_EXT4         * ext4 command support

                CONFIG_CMD_SAVEENV        saveenv
                CONFIG_CMD_FDC          * Floppy Disk Support
                CONFIG_CMD_SAVEENV        saveenv
                CONFIG_CMD_FDC          * Floppy Disk Support

-               CONFIG_CMD_FAT          * FAT partition 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_FDOS         * Dos diskette Support
                CONFIG_CMD_FLASH          flinfo, erase, protect
                CONFIG_CMD_FPGA           FPGA device initialization support

+               CONFIG_CMD_GETTIME      * Get time since boot

                CONFIG_CMD_GO           * the 'go' command (exec code)
                CONFIG_CMD_GREPENV      * search environment
                CONFIG_CMD_GO           * the 'go' command (exec code)
                CONFIG_CMD_GREPENV      * search environment

+               CONFIG_CMD_HASH         * calculate hash / digest

                CONFIG_CMD_HWFLOW       * RTS/CTS hw flow control
                CONFIG_CMD_I2C          * I2C serial bus support
                CONFIG_CMD_IDE          * IDE harddisk support
                CONFIG_CMD_HWFLOW       * RTS/CTS hw flow control
                CONFIG_CMD_I2C          * I2C serial bus support
                CONFIG_CMD_IDE          * IDE harddisk support


@@ -814,6 +837,7 @@ The following options need to be configured:
                CONFIG_CMD_IMLS           List all found images
                CONFIG_CMD_IMMAP        * IMMR dump support
                CONFIG_CMD_IMPORTENV    * import an environment
                CONFIG_CMD_IMLS           List all found images
                CONFIG_CMD_IMMAP        * IMMR dump support
                CONFIG_CMD_IMPORTENV    * import an environment

+               CONFIG_CMD_INI          * import data from an ini file into the env

                CONFIG_CMD_IRQ          * irqinfo
                CONFIG_CMD_ITEST          Integer/string test of 2 values
                CONFIG_CMD_JFFS2        * JFFS2 Support
                CONFIG_CMD_IRQ          * irqinfo
                CONFIG_CMD_ITEST          Integer/string test of 2 values
                CONFIG_CMD_JFFS2        * JFFS2 Support


@@ -840,6 +864,7 @@ The following options need to be configured:
                CONFIG_CMD_PING         * send ICMP ECHO_REQUEST to network
                                          host
                CONFIG_CMD_PORTIO       * Port I/O
                CONFIG_CMD_PING         * send ICMP ECHO_REQUEST to network
                                          host
                CONFIG_CMD_PORTIO       * Port I/O

+               CONFIG_CMD_READ         * Read raw data from partition

                CONFIG_CMD_REGINFO      * Register dump
                CONFIG_CMD_RUN            run command in env variable
                CONFIG_CMD_SAVES        * save S record dump
                CONFIG_CMD_REGINFO      * Register dump
                CONFIG_CMD_RUN            run command in env variable
                CONFIG_CMD_SAVES        * save S record dump


@@ -855,7 +880,8 @@ The following options need to be configured:
                CONFIG_CMD_SPI          * SPI serial bus support
                CONFIG_CMD_TFTPSRV      * TFTP transfer in server mode
                CONFIG_CMD_TFTPPUT      * TFTP put command (upload)
                CONFIG_CMD_SPI          * SPI serial bus support
                CONFIG_CMD_TFTPSRV      * TFTP transfer in server mode
                CONFIG_CMD_TFTPPUT      * TFTP put command (upload)

-               CONFIG_CMD_TIME         * run command and report execution time
+               CONFIG_CMD_TIME         * run command and report execution time (ARM specific)
+               CONFIG_CMD_TIMER        * access to the system tick timer

                CONFIG_CMD_USB          * USB support
                CONFIG_CMD_CDP          * Cisco Discover Protocol support
                CONFIG_CMD_MFSL         * Microblaze FSL support
                CONFIG_CMD_USB          * USB support
                CONFIG_CMD_CDP          * Cisco Discover Protocol support
                CONFIG_CMD_MFSL         * Microblaze FSL support


@@ -932,7 +958,8 @@ The following options need to be configured:
                If this variable is defined, an environment variable
                named "ver" is created by U-Boot showing the U-Boot
                version as printed by the "version" command.
                If this variable is defined, an environment variable
                named "ver" is created by U-Boot showing the U-Boot
                version as printed by the "version" command.

-               This variable is readonly.
+               Any change to this variable will be reverted at the
+               next reset.

 
 - Real-Time Clock:
 
 
 - Real-Time Clock:
 


@@ -975,13 +1002,20 @@ The following options need to be configured:
                commands like bootm or iminfo. This option is
                automatically enabled when you select CONFIG_CMD_DATE .
 
                commands like bootm or iminfo. This option is
                automatically enabled when you select CONFIG_CMD_DATE .
 

-- Partition Support:
-               CONFIG_MAC_PARTITION and/or CONFIG_DOS_PARTITION
-               and/or CONFIG_ISO_PARTITION and/or CONFIG_EFI_PARTITION
+- Partition Labels (disklabels) Supported:
+               Zero or more of the following:
+               CONFIG_MAC_PARTITION   Apple's MacOS partition table.
+               CONFIG_DOS_PARTITION   MS Dos partition table, traditional on the
+                                      Intel architecture, USB sticks, etc.
+               CONFIG_ISO_PARTITION   ISO partition table, used on CDROM etc.
+               CONFIG_EFI_PARTITION   GPT partition table, common when EFI is the
+                                      bootloader.  Note 2TB partition limit; see
+                                      disk/part_efi.c
+               CONFIG_MTD_PARTITIONS  Memory Technology Device partition table.

 
                If IDE or SCSI support is enabled (CONFIG_CMD_IDE or
                CONFIG_CMD_SCSI) you must configure support for at
 
                If IDE or SCSI support is enabled (CONFIG_CMD_IDE or
                CONFIG_CMD_SCSI) you must configure support for at

-               least one partition type as well.
+               least one non-MTD partition type as well.

 
 - IDE Reset method:
                CONFIG_IDE_RESET_ROUTINE - this is defined in several
 
 - IDE Reset method:
                CONFIG_IDE_RESET_ROUTINE - this is defined in several


@@ -1021,6 +1055,9 @@ 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.
+

 - NETWORK Support (PCI):
                CONFIG_E1000
                Support for Intel 8254x/8257x gigabit chips.
 - NETWORK Support (PCI):
                CONFIG_E1000
                Support for Intel 8254x/8257x gigabit chips.


@@ -1072,7 +1109,7 @@ The following options need to be configured:
                CONFIG_CALXEDA_XGMAC
                Support for the Calxeda XGMAC device
 
                CONFIG_CALXEDA_XGMAC
                Support for the Calxeda XGMAC device
 

-               CONFIG_DRIVER_LAN91C96
+               CONFIG_LAN91C96

                Support for SMSC's LAN91C96 chips.
 
                        CONFIG_LAN91C96_BASE
                Support for SMSC's LAN91C96 chips.
 
                        CONFIG_LAN91C96_BASE


@@ -1082,7 +1119,7 @@ The following options need to be configured:
                        CONFIG_LAN91C96_USE_32_BIT
                        Define this to enable 32 bit addressing
 
                        CONFIG_LAN91C96_USE_32_BIT
                        Define this to enable 32 bit addressing
 

-               CONFIG_DRIVER_SMC91111
+               CONFIG_SMC91111

                Support for SMSC's LAN91C111 chip
 
                        CONFIG_SMC91111_BASE
                Support for SMSC's LAN91C111 chip
 
                        CONFIG_SMC91111_BASE


@@ -1256,6 +1293,9 @@ The following options need to be configured:
                viewport is supported.
                To enable the ULPI layer support, define CONFIG_USB_ULPI and
                CONFIG_USB_ULPI_VIEWPORT in your board configuration file.
                viewport is supported.
                To enable the ULPI layer support, define CONFIG_USB_ULPI and
                CONFIG_USB_ULPI_VIEWPORT in your board configuration file.

+               If your ULPI phy needs a different reference clock than the
+               standard 24 MHz then you have to define CONFIG_ULPI_REF_CLK to
+               the appropriate value in Hz.

 
 - MMC Support:
                The MMC controller on the Intel PXA is supported. To
 
 - MMC Support:
                The MMC controller on the Intel PXA is supported. To


@@ -1301,6 +1341,13 @@ The following options need to be configured:
                This will also enable the command "fatwrite" enabling the
                user to write files to FAT.
 
                This will also enable the command "fatwrite" enabling the
                user to write files to FAT.
 

+CBFS (Coreboot Filesystem) support
+               CONFIG_CMD_CBFS
+
+               Define this to enable support for reading from a Coreboot
+               filesystem. Available commands are cbfsinit, cbfsinfo, cbfsls
+               and cbfsload.
+

 - Keyboard Support:
                CONFIG_ISA_KEYBOARD
 
 - Keyboard Support:
                CONFIG_ISA_KEYBOARD
 


@@ -1372,6 +1419,13 @@ The following options need to be configured:
                boot.  See the documentation file README.video for a
                description of this variable.
 
                boot.  See the documentation file README.video for a
                description of this variable.
 

+               CONFIG_VIDEO_VGA
+
+               Enable the VGA video / BIOS for x86. The alternative if you
+               are using coreboot is to use the coreboot frame buffer
+               driver.
+
+

 - Keyboard Support:
                CONFIG_KEYBOARD
 
 - Keyboard Support:
                CONFIG_KEYBOARD
 


@@ -1432,6 +1486,30 @@ The following options need to be configured:
                Normally display is black on white background; define
                CONFIG_SYS_WHITE_ON_BLACK to get it inverted.
 
                Normally display is black on white background; define
                CONFIG_SYS_WHITE_ON_BLACK to get it inverted.
 

+               CONFIG_LCD_ALIGNMENT
+
+               Normally the LCD is page-aligned (tyically 4KB). If this is
+               defined then the LCD will be aligned to this value instead.
+               For ARM it is sometimes useful to use MMU_SECTION_SIZE
+               here, since it is cheaper to change data cache settings on
+               a per-section basis.
+
+               CONFIG_CONSOLE_SCROLL_LINES
+
+               When the console need to be scrolled, this is the number of
+               lines to scroll by. It defaults to 1. Increasing this makes
+               the console jump but can help speed up operation when scrolling
+               is slow.
+
+               CONFIG_LCD_BMP_RLE8
+
+               Support drawing of RLE8-compressed bitmaps on the LCD.
+
+               CONFIG_I2C_EDID
+
+               Enables an 'i2c edid' command which can read EDID
+               information over I2C from an attached LCD display.
+

 - Splash Screen Support: CONFIG_SPLASH_SCREEN
 
                If this option is set, the environment is checked for
 - Splash Screen Support: CONFIG_SPLASH_SCREEN
 
                If this option is set, the environment is checked for


@@ -1475,6 +1553,12 @@ The following options need to be configured:
                can be displayed via the splashscreen support or the
                bmp command.
 
                can be displayed via the splashscreen support or the
                bmp command.
 

+- Do compresssing for memory range:
+               CONFIG_CMD_ZIP
+
+               If this option is set, it would use zlib deflate method
+               to compress the specified memory at its best effort.
+

 - Compression support:
                CONFIG_BZIP2
 
 - Compression support:
                CONFIG_BZIP2
 


@@ -2119,6 +2203,11 @@ The following options need to be configured:
                serial# is unaffected by this, i. e. it remains
                read-only.]
 
                serial# is unaffected by this, i. e. it remains
                read-only.]
 

+               The same can be accomplished in a more flexible way
+               for any variable by configuring the type of access
+               to allow for those variables in the ".flags" variable
+               or define CONFIG_ENV_FLAGS_LIST_STATIC.
+

 - Protected RAM:
                CONFIG_PRAM
 
 - Protected RAM:
                CONFIG_PRAM
 


@@ -2148,10 +2237,18 @@ The following options need to be configured:
                following board configurations are known to be
                "pRAM-clean":
 
                following board configurations are known to be
                "pRAM-clean":
 

-                       ETX094, IVMS8, IVML24, SPD8xx, TQM8xxL,
-                       HERMES, IP860, RPXlite, LWMON, LANTEC,
+                       IVMS8, IVML24, SPD8xx, TQM8xxL,
+                       HERMES, IP860, RPXlite, LWMON,

                        FLAGADM, TQM8260
 
                        FLAGADM, TQM8260
 

+- Access to physical memory region (> 4GB)
+               Some basic support is provided for operations on memory not
+               normally accessible to U-Boot - e.g. some architectures
+               support access to more than 4GB of memory on 32-bit
+               machines using physical address extension or similar.
+               Define CONFIG_PHYSMEM to access this basic support, which
+               currently only supports clearing the memory.
+

 - Error Recovery:
                CONFIG_PANIC_HANG
 
 - Error Recovery:
                CONFIG_PANIC_HANG
 


@@ -2275,6 +2372,12 @@ The following options need to be configured:
                - CONFIG_SYS_VENDOR
                - CONFIG_SYS_SOC
 
                - CONFIG_SYS_VENDOR
                - CONFIG_SYS_SOC
 

+               CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+
+               Define this in order to add variables describing certain
+               run-time determined information about the hardware to the
+               environment.  These will be named board_name, board_rev.
+

 - DataFlash Support:
                CONFIG_HAS_DATAFLASH
 
 - DataFlash Support:
                CONFIG_HAS_DATAFLASH
 


@@ -2335,6 +2438,23 @@ The following options need to be configured:
                A better solution is to properly configure the firewall,
                but sometimes that is not allowed.
 
                A better solution is to properly configure the firewall,
                but sometimes that is not allowed.
 

+- Hashing support:
+               CONFIG_CMD_HASH
+
+               This enables a generic 'hash' command which can produce
+               hashes / digests from a few algorithms (e.g. SHA1, SHA256).
+
+               CONFIG_HASH_VERIFY
+
+               Enable the hash verify command (hash -v). This adds to code
+               size a little.
+
+               CONFIG_SHA1 - support SHA1 hashing
+               CONFIG_SHA256 - support SHA256 hashing
+
+               Note: There is also a sha1sum command, which should perhaps
+               be deprecated in favour of 'hash sha1'.
+

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


@@ -2370,6 +2490,31 @@ The following options need to be configured:
                 29,916,167 26,005,792  bootm_start
                 30,361,327    445,160  start_kernel
 
                 29,916,167 26,005,792  bootm_start
                 30,361,327    445,160  start_kernel
 

+               CONFIG_CMD_BOOTSTAGE
+               Add a 'bootstage' command which supports printing a report
+               and un/stashing of bootstage data.
+
+               CONFIG_BOOTSTAGE_FDT
+               Stash the bootstage information in the FDT. A root 'bootstage'
+               node is created with each bootstage id as a child. Each child
+               has a 'name' property and either 'mark' containing the
+               mark time in microsecond, or 'accum' containing the
+               accumulated time for that bootstage id in microseconds.
+               For example:
+
+               bootstage {
+                       154 {
+                               name = "board_init_f";
+                               mark = <3575678>;
+                       };
+                       170 {
+                               name = "lcd";
+                               accum = <33482>;
+                       };
+               };
+
+               Code in the Linux kernel can find this in /proc/devicetree.
+

 Legacy uImage format:
 
   Arg  Where                   When
 Legacy uImage format:
 
   Arg  Where                   When


@@ -2523,6 +2668,17 @@ 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
 

+- FIT image support:
+               CONFIG_FIT
+               Enable support for the FIT uImage format.
+
+               CONFIG_FIT_BEST_MATCH
+               When no configuration is explicitly selected, default to the
+               one whose fdt's compatibility field best matches that of
+               U-Boot itself. A match is considered "best" if it matches the
+               most specific compatibility entry of U-Boot's fdt's root node.
+               The order of entries in the configuration's fdt is ignored.
+

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


@@ -2574,6 +2730,10 @@ FIT uImage format:
                CONFIG_SPL_TEXT_BASE
                TEXT_BASE for linking the SPL binary.
 
                CONFIG_SPL_TEXT_BASE
                TEXT_BASE for linking the SPL binary.
 

+               CONFIG_SPL_RELOC_TEXT_BASE
+               Address to relocate to.  If unspecified, this is equal to
+               CONFIG_SPL_TEXT_BASE (i.e. no relocation is done).
+

                CONFIG_SPL_BSS_START_ADDR
                Link address for the BSS within the SPL binary.
 
                CONFIG_SPL_BSS_START_ADDR
                Link address for the BSS within the SPL binary.
 


@@ -2583,12 +2743,29 @@ FIT uImage format:
                CONFIG_SPL_STACK
                Adress of the start of the stack SPL will use
 
                CONFIG_SPL_STACK
                Adress of the start of the stack SPL will use
 

+               CONFIG_SPL_RELOC_STACK
+               Adress of the start of the stack SPL will use after
+               relocation.  If unspecified, this is equal to
+               CONFIG_SPL_STACK.
+

                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_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_FRAMEWORK
+               Enable the SPL framework under common/.  This framework
+               supports MMC, NAND and YMODEM loading of U-Boot and NAND
+               NAND loading of the Linux Kernel.
+
+               CONFIG_SPL_DISPLAY_PRINT
+               For ARM, enable an optional function to print more information
+               about the running system.
+
+               CONFIG_SPL_INIT_MINIMAL
+               Arch init code should be built for a very small image
+

                CONFIG_SPL_LIBCOMMON_SUPPORT
                Support for common/libcommon.o in SPL binary
 
                CONFIG_SPL_LIBCOMMON_SUPPORT
                Support for common/libcommon.o in SPL binary
 


@@ -2616,8 +2793,19 @@ FIT uImage format:
                CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME
                Filename to read to load U-Boot when reading from FAT
 
                CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME
                Filename to read to load U-Boot when reading from FAT
 

+               CONFIG_SPL_NAND_BASE
+               Include nand_base.c in the SPL.  Requires
+               CONFIG_SPL_NAND_DRIVERS.
+
+               CONFIG_SPL_NAND_DRIVERS
+               SPL uses normal NAND drivers, not minimal drivers.
+
+               CONFIG_SPL_NAND_ECC
+               Include standard software ECC in the SPL
+

                CONFIG_SPL_NAND_SIMPLE
                CONFIG_SPL_NAND_SIMPLE

-               Support for drivers/mtd/nand/libnand.o in SPL binary
+               Support for NAND boot using simple NAND drivers that
+               expose the cmd_ctrl() interface.

 
                CONFIG_SYS_NAND_5_ADDR_CYCLE, CONFIG_SYS_NAND_PAGE_COUNT,
                CONFIG_SYS_NAND_PAGE_SIZE, CONFIG_SYS_NAND_OOBSIZE,
 
                CONFIG_SYS_NAND_5_ADDR_CYCLE, CONFIG_SYS_NAND_PAGE_COUNT,
                CONFIG_SYS_NAND_PAGE_SIZE, CONFIG_SYS_NAND_OOBSIZE,


@@ -2625,15 +2813,19 @@ FIT uImage format:
                CONFIG_SYS_NAND_ECCPOS, CONFIG_SYS_NAND_ECCSIZE,
                CONFIG_SYS_NAND_ECCBYTES
                Defines the size and behavior of the NAND that SPL uses
                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
+               to read U-Boot

 
                CONFIG_SYS_NAND_U_BOOT_OFFS
 
                CONFIG_SYS_NAND_U_BOOT_OFFS

-               Location in NAND for CONFIG_SPL_NAND_SIMPLE to read U-Boot
-               from.
+               Location in NAND to read U-Boot from
+
+               CONFIG_SYS_NAND_U_BOOT_DST
+               Location in memory to load U-Boot to
+
+               CONFIG_SYS_NAND_U_BOOT_SIZE
+               Size of image to load

 
                CONFIG_SYS_NAND_U_BOOT_START
 
                CONFIG_SYS_NAND_U_BOOT_START

-               Location in memory for CONFIG_SPL_NAND_SIMPLE to load U-Boot
-               to.
+               Entry point in loaded image to jump to

 
                CONFIG_SYS_NAND_HW_ECC_OOBFIRST
                Define this if you need to first read the OOB and then the
 
                CONFIG_SYS_NAND_HW_ECC_OOBFIRST
                Define this if you need to first read the OOB and then the


@@ -2652,9 +2844,17 @@ FIT uImage format:
                CONFIG_SPL_SPI_SUPPORT
                Support for drivers/spi/libspi.o in SPL binary
 
                CONFIG_SPL_SPI_SUPPORT
                Support for drivers/spi/libspi.o in SPL binary
 

+               CONFIG_SPL_RAM_DEVICE
+               Support for running image already present in ram, in SPL binary
+

                CONFIG_SPL_LIBGENERIC_SUPPORT
                Support for lib/libgeneric.o in SPL binary
 
                CONFIG_SPL_LIBGENERIC_SUPPORT
                Support for lib/libgeneric.o in SPL binary
 

+               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.
+

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


@@ -2789,9 +2989,6 @@ Configuration Settings:
                non page size aligned address and this could cause major
                problems.
 
                non page size aligned address and this could cause major
                problems.
 

-- CONFIG_SYS_TFTP_LOADADDR:
-               Default load address for network file downloads
-

 - CONFIG_SYS_LOADS_BAUD_CHANGE:
                Enable temporary baudrate change while serial download
 
 - CONFIG_SYS_LOADS_BAUD_CHANGE:
                Enable temporary baudrate change while serial download
 


@@ -2933,6 +3130,49 @@ Configuration Settings:
        cases. This setting can be used to tune behaviour; see
        lib/hashtable.c for details.
 
        cases. This setting can be used to tune behaviour; see
        lib/hashtable.c for details.
 

+- CONFIG_ENV_FLAGS_LIST_DEFAULT
+- CONFIG_ENV_FLAGS_LIST_STATIC
+       Enable validation of the values given to enviroment 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.
+
+       The format of the list is:
+               type_attribute = [s|d|x|b|i|m]
+               access_atribute = [a|r|o|c]
+               attributes = type_attribute[access_atribute]
+               entry = variable_name[:attributes]
+               list = entry[,list]
+
+       The type attributes are:
+               s - String (default)
+               d - Decimal
+               x - Hexadecimal
+               b - Boolean ([1yYtT|0nNfF])
+               i - IP address
+               m - MAC address
+
+       The access attributes are:
+               a - Any (default)
+               r - Read-only
+               o - Write-once
+               c - Change-default
+
+       - CONFIG_ENV_FLAGS_LIST_DEFAULT
+               Define this to a list (string) to define the ".flags"
+               envirnoment variable in the default or embedded environment.
+
+       - CONFIG_ENV_FLAGS_LIST_STATIC
+               Define this to a list (string) to define validation that
+               should be done if an entry is not found in the ".flags"
+               environment variable.  To override a setting in the static
+               list, simply add an entry for the same variable name to the
+               ".flags" variable.
+
+- CONFIG_ENV_ACCESS_IGNORE_FORCE
+       If defined, don't allow the -f switch to env set override variable
+       access flags.
+

 The following definitions that deal with the placement and management
 of environment data (variable area); in general, we support the
 following configurations:
 The following definitions that deal with the placement and management
 of environment data (variable area); in general, we support the
 following configurations:


@@ -3402,6 +3642,13 @@ Low Level (hardware related) configuration options:
                Disable PCI-Express on systems where it is supported but not
                required.
 
                Disable PCI-Express on systems where it is supported but not
                required.
 

+- CONFIG_PCI_ENUM_ONLY
+               Only scan through and get the devices on the busses.
+               Don't do any setup work, presumably because someone or
+               something has already done it, and we don't need to do it
+               a second time.  Useful for platforms that are pre-booted
+               by coreboot or similar.
+

 - CONFIG_SYS_SRIO:
                Chip has SRIO or not
 
 - CONFIG_SYS_SRIO:
                Chip has SRIO or not
 


@@ -3523,6 +3770,16 @@ Low Level (hardware related) configuration options:
                be used if available. These functions may be faster under some
                conditions but may increase the binary size.
 
                be used if available. These functions may be faster under some
                conditions but may increase the binary size.
 

+- CONFIG_X86_NO_RESET_VECTOR
+               If defined, the x86 reset vector code is excluded. You will need
+               to do this when U-Boot is running from Coreboot.
+
+- CONFIG_X86_NO_REAL_MODE
+               If defined, x86 real mode code is omitted. This assumes a
+               32-bit environment where such code is not needed. You will
+               need to do this when U-Boot is running from Coreboot.
+
+

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


@@ -3750,6 +4007,7 @@ saveenv - save environment variables to persistent storage
 protect - enable or disable FLASH write protection
 erase  - erase FLASH memory
 flinfo - print FLASH memory information
 protect - enable or disable FLASH write protection
 erase  - erase FLASH memory
 flinfo - print FLASH memory information

+nand   - NAND memory operations (see doc/README.nand)

 bdinfo - print Board Info structure
 iminfo - print header information for application image
 coninfo - print console devices and informations
 bdinfo - print Board Info structure
 iminfo - print header information for application image
 coninfo - print console devices and informations


@@ -4016,6 +4274,36 @@ Please note that changes to some configuration parameters may take
 only effect after the next boot (yes, that's just like Windoze :-).
 
 
 only effect after the next boot (yes, that's just like Windoze :-).
 
 

+Callback functions for environment variables:
+---------------------------------------------
+
+For some environment variables, the behavior of u-boot needs to change
+when their values are changed.  This functionailty allows functions to
+be associated with arbitrary variables.  On creation, overwrite, or
+deletion, the callback will provide the opportunity for some side
+effect to happen or for the change to be rejected.
+
+The callbacks are named and associated with a function using the
+U_BOOT_ENV_CALLBACK macro in your board or driver code.
+
+These callbacks are associated with variables in one of two ways.  The
+static list can be added to by defining CONFIG_ENV_CALLBACK_LIST_STATIC
+in the board configuration to a string that defines a list of
+associations.  The list must be in the following format:
+
+       entry = variable_name[:callback_name]
+       list = entry[,list]
+
+If the callback name is not specified, then the callback is deleted.
+Spaces are also allowed anywhere in the list.
+
+Callbacks can also be associated by defining the ".callbacks" variable
+with the same list format above.  Any association in ".callbacks" will
+override any association in the static list. You can define
+CONFIG_ENV_CALLBACK_LIST_DEFAULT to a list (string) to define the
+".callbacks" envirnoment variable in the default or embedded environment.
+
+

 Command Line Parsing:
 =====================
 
 Command Line Parsing:
 =====================
 


@@ -4655,7 +4943,10 @@ Over time, many people have reported problems when trying to use the
 consider minicom to be broken, and recommend not to use it. Under
 Unix, I recommend to use C-Kermit for general purpose use (and
 especially for kermit binary protocol download ("loadb" command), and
 consider minicom to be broken, and recommend not to use it. Under
 Unix, I recommend to use C-Kermit for general purpose use (and
 especially for kermit binary protocol download ("loadb" command), and

-use "cu" for S-Record download ("loads" command).
+use "cu" for S-Record download ("loads" command).  See
+http://www.denx.de/wiki/view/DULG/SystemSetup#Section_4.3.
+for help with kermit.
+

 
 Nevertheless, if you absolutely want to use it try adding this
 configuration to your "File transfer protocols" section:
 
 Nevertheless, if you absolutely want to use it try adding this
 configuration to your "File transfer protocols" section: