changelog

ATMEL公司的AT91RM9200芯片在嵌入式系统中应用非常多

    Intel 28F128J3A, 28F320J3A or 28F640J3A flash.

* Patch by Rick Bronson, 28 Mar 2003:
  - fix common/cmd_nand.c

* Patch by Arun Dharankar, 24 Mar 2003:
  - add threads / scheduler example code

* Add patches by Robert Schwebel, 31 Mar 2003:
  - add ctrl-c support for kermit download
  - align bdinfo output on ARM
  - csb226 board: bring in sync with innokom/memsetup.S
  - csb226 board: fix MDREFR handling
  - misc doc fixes / extensions
  - innokom board: cleanup, MDREFR fix in memsetup.S, config update
  - add BOOT_PROGRESS to armlinux.c

* Add CPU ID, version, and clock speed for INCA-IP

* Patches by Dave Ellis, 18 Mar 2003 for SXNI855T board:
  - fix SRAM and SDRAM memory sizing
  - add status LED support
  - add MAC address for second (SCC1) ethernet port

* Update default environment for TQM8260 board

* Patch by Rick Bronson, 16 Mar 2003:
  - Add NAND flash support for reading, writing, and erasing NAND
    flash (certain forms of which are called SmartMedia).
  - Add support for Atmel AT91RM9200DK ARM920T based development kit.

* Patches by Robert Schwebel, 19 Mar 2003:
  - use arm-linux-gcc as default compiler for ARM
  - fix i2c fixup code
  - fix missing baudrate setting
  - added $loadaddr / CFG_LOAD_ADDR support to loadb
  - moved "ignoring trailing characters" _before_ u-boot wants to
    print out diagnostics messages; removes bogus characters at the
    end of transmission

* Patch by John Zhan, 18 Mar 2003:
  Add support for SinoVee Microsystems SC8xx boards

* Patch by Rolf Offermanns, 21 Mar 2003:
  ported the dnp1110 related changes from the current armboot cvs to
  current u-boot cvs. smc91111 does not work. problem marked in
  smc91111.c, grep for "FIXME".

* Patch by Brian Auld, 25 Mar 2003:
  Add support for STM flash chips on ebony board

* Add PCI support for MPC8250 Boards (PM825 module)

* Patch by Stefan Roese, 25 Mar 2003:
  - PCI405 update.

* Patch by Stefan Roese, 20 Mar 2003:
  - CPCI4052 update (support for revision 3).
  - Set edge conditioning circuitry on PPC405GPr for compatibility
    to existing PPC405GP designs.
  - Clip udiv to 5 bits on PPC405 (serial.c).

* Extend INCAIP board support:
  - add automatic RAM size detection
  - add "bdinfo" command
  - pass flash address and size to Linux kernel
  - switch to 150 MHz clock

* Avoid flicker on the TRAB's VFD by synchronizing the enable with
  the HSYNC/VSYNC. Requires new CPLD code (Version 101 for Rev. 100
  boards, version 153 for Rev. 200 boards).

* Patch by Vladimir Gurevich, 12 Mar 2003:
  Fix relocation problem of statically initialized string pointers
  in common/cmd_pci.c

* Patch by Kai-Uwe Bl鰉, 12 Mar 2003:
  Cleanup & bug fixes for JFFS2 code:
  - the memory mangement was broken. It caused havoc on malloc by
    writing beyond the block boundaries.
  - the length calculation for files was wrong, sometimes resulting
    in short file reads.
  - data copying now optionally takes fragment version numbers into
    account, to avoid copying from older data.
  See doc/README.JFFS2 for details.

* Patch by Josef Wagner, 12 Mar 2003:
  - 16/32 MB and 50/80 MHz support with auto-detection for IP860
  - ETH05 and BEDBUG support for CU824
  - added support for MicroSys CPC45
  - new BOOTROM/FLASH0 and DOC base for PM826

* Patch by Robert Schwebel, 12 Mar 2003:
  Fix the chpart command on innokom board

* Name cleanup:
  mv include/asm-i386/ppcboot-i386.h include/asm-i386/u-boot-i386.h
  s/PPCBoot/U-Boot/ in some files
  s/pImage/uImage/  in some files

* Patch by Detlev Zundel, 15 Jan 2003:
  Fix '' command line quoting

* Patch by The LEOX team, 19 Jan 2003:
  - add support for the ELPT860 board
  - add support for Dallas ds164x RTC

* Patches by David M黮ler, 31 Jan 2003:
  - minimal setup for CardBus bridges
  - add EEPROM read/write support in the CS8900 driver
  - add support for the builtin I2C controller in the Samsung s3c24x0 chips
  - add support for MPL's VCMA9 (Samsung s3c2410 based) board

* Patch by Steven Scholz, 04 Feb 2003:
  add support for RTC DS1307

* Patch by Reinhard Meyer, 5 Feb 2003:
  fix PLPRCR/SCCR init sequence on 8xx to allow for
  changes of EBDF by software

* Patch by Vladimir Gurevich, 07 Feb 2003:
  "API-compatibility patch" for 4xx I2C driver

* TRAB fixes / extensions:
  - Restore VFD brightness as saved in environment
  - add support for Fujitsu flashes
  - make sure both buzzers are turned off (drive low level)

* Patches by Robert Schwebel, 06 Mar 2003:
  - fix bug in BOOTP code (must use NetCopyIP)
  - update of CSB226 port
  - clear BSS segment on XScale
  - added support for i2c_init_board() function
  - update to the Innokom plattform

* Extend support for redundand environments for configurations where
  environment size < sector size

* Patch by Rune Torgersen, 13 Feb 2003:
  Add support for Motorola MPC8266ADS board

* Patch by Kyle Harris, 19 Feb 2003:
  patches for the Intel lubbock board:
  memsetup.S - general cleanup (based on Robert's csb226 code)
  flash.c - overhaul, actually works now
  lubbock.c - fix init funcs to return proper value

* Patch by Kenneth Johansson, 26 Feb 2003:
  - Fixed off by one in RFTA calculation.
  - No need to abort when LDF is lower than we can program it's only
    minimum timing so clamp it to what we can do.
  - Takes function pointer to function for reading the spd_nvram. Usefull
    for faking data or hardcode a module without the nvram.
  - fix other user for above change
  - fix some comments.

* Patches by Brian Waite, 26 Feb 2003:
  - fix port for evb64260 board
  - fix PCI for evb64260 board
  - fix PCI scan

* Patch by Reinhard Meyer, 1 Mar 2003:
  Add support for EMK TOP860 Module

* Patch by Yuli Barcohen, 02 Mar 2003:
  Add SPD EEPROM support for MPC8260ADS board

* Patch by Robert Schwebel, 21 Jan 2003:
  - Add support for Innokom board
  - Don't complain if "install" fails
  - README cleanup (remove duplicated lines)
  - Update PXA header files

* Add documentation for existing POST code (doc/README.POST)

* Patch by Laudney Ren, 15 Jan 2003:
  Fix handling of redundand environment in "tools/envcrc.c"

* Patch by Detlev Zundel, 28 Feb 2003:
  Add bedbug support for 824x systems

* Add support for 16 MB flash configuration of TRAB board

* Patch by Erwin Rol, 27 Feb 2003:
  Add support for RTEMS

* Add image information to README

* Patch by Stefan Roese, 18 Feb 2003:
  CPCIISER4 configuration updated.

* Patch by Stefan Roese, 17 Feb 2003:
  Fixed bug in ext. serial clock setup on PPC405 (since PPC440 port).

* Patch by Stefan Roese, 13 Feb 2003:
  Add "pcidelay" environment variable (in ms, enabled via
  CONFIG_PCI_BOOTDELAY).
  PCI spec 2.2 defines, that a pci target has 2^25 pci clocks after
  RST# to respond to configuration cycles (33MHz -> 1s).

* Fix dual PCMCIA slot support (when running with just one
  slot populated)

* Add VFD type detection to trab board

* extend drivers/cs8900.c driver to synchronize  ethaddr  environment
  variable with value in the EEPROM

* Patch by Stefan Roese, 10 Feb 2003:
  Add support for 4MB and 128MB onboard SDRAM (cpu/ppc4xx/sdram.c)

* Add support for MIPS32 4Kc CPUs

* Add support for INCA-IP Board

======================================================================
Changes for U-Boot 0.2.2:
======================================================================

* Add dual ethernet support on PM826

* Add support for LXT971 PHY on PM826

* Patch by Tord Andersson, 16 Jan 2003:
  Fix flash sector count for TQM8xxL

* Fix I2C EEPROM problem on ICU862 board (would only write the first
  16 bytes out of each 32 byte block)

======================================================================
Changes for U-Boot 0.2.1:
======================================================================

* Add support for V37 board
  (patch by J髇 Benediktsson, 11 Dec 2002)

* Update baudrate in bd_info when it gets changed

* Add watchdog trigger points while waiting for serial port
  (so far only 8xx -- needed on LWMON with 100ms watchdog)

* Improve command line tool to access the U-Boot's environment
  (figuration of the utility, using a config file)

* Add single quote support for (old) command line parser

* Switch LWMON board default config from FRAM to EEPROM;
  in POST, EEPROM shows up on 8 addresses

======================================================================
Changes for U-Boot 0.2.0:
======================================================================

* Use 1-byte-read instead of -write for iprobe() function
  Add i2c commands to PM826 config

* extend I2C POST code: check for list on known addresses

* Improve log buffer code; use "loglevel" to decide which messages
  to log on the console, too (like in Linux); get rid of "logstart"

* Add command line tool to access the U-Boot's environment
  (board-specific for TRAB now, to be fixed later)

* Patch by Hans-Joerg Frieden, 06 Dec 2002
  Fix misc problems with AmigaOne support

* Patch by Chris Hallinan, 3 Dec 2002:
  minor cleanup to the MPC8245 EPIC driver

* Patch by Pierre Aubert , 28 Nov 2002
  Add support for external (SIU) interrupts on MPC8xx

* Patch by Pierre Aubert , 28 Nov 2002
  Fix nested syscalls bug in standalone applications

* Patch by David M黮ler, 27 Nov 2002:
  fix output of "pciinfo" command for CardBus bridge devices.

* Fix bug in TQM8260 board detection - boards got stuck when board ID
  was not readable

* Add LED indication for IDE activity on KUP4K board

* Fix startup problems with VFD display on TRAB

* Patch by Pierre Aubert, 20 Nov 2002
  Add driver for Epson SED13806 graphic controller.
  Add support for BMP logos in cfb_console driver.

* Added support for both PCMCIA slots (at the same time!) on MPC8xx

* Patch by Rod Boyce, 21 Nov 2002:
  fix PCMCIA on MBX8xx board

* Patch by Pierre Aubert , 21 Nov 2002
  Add CFG_CPM_POST_WORD_ADDR to make the offset of the
  bootmode word in DPRAM configurable

* Patch by Daniel Engstr鰉, 18 Nov 2002:
  Fixes for x86 port (mostly strings issues)

* Patch by Ken Chou, 18 Nov 2002:
  Fix for natsemi NIC cards (DP83815)

* Patch by Pierre Aubert, 19 Nov 2002:
  fix a bug for the MII configuration, and some warnings

* Patch by Thomas Frieden, 13 Nov 2002:
  Add code for AmigaOne board
  (preliminary merge to U-Boot, still WIP)

* Patch by Jon Diekema, 12 Nov 2002:
  - Adding URL for IEEE OUI lookup
  - Making the autoboot #defines dependent on CONFIG_AUTOBOOT_KEYED
    being defined.
  - In the CONFIG_EXTRA_ENV_SETTINGS #define, the root-on-initrd and
    root-on-nfs macros are designed to switch how the default boot
    method gets defined.

* Patch by Daniel Engstr鰉, 13 Nov 2002:
  Add support for i386 architecture and AMD SC520 board

* Patch by Pierre Aubert, 12 Nov 2002:
  Add support for DOS filesystem and booting from DOS floppy disk

* Patch by Jim Sandoz, 07 Nov 2002:
  Increase number of network RX buffers (PKTBUFSRX in
  "include/net.h") for EEPRO100 based boards (especially SP8240)
  which showed "Receiver is not ready" errors when U-Boot was
  processing the receive buffers slower than the network controller
  was filling them.

* Patch by Andreas Oberritter, 09 Nov 2002:
  Change behaviour of NetLoop(): return -1 for errors, filesize
  otherwise; return code 0 is valid an means no file loaded - in this
  case the environment still gets updated!

* Patches by Jon Diekema, 9 Nov 2002:
  - improve ADC/DAC clocking on the SACSng board to align
    the failing edges of LRCLK and SCLK
  - sbc8260 configuration tweaks
  - add status LED support for 82xx systems
  - wire sspi/sspo commands into command handler; improved error
    handlering
  - add timestamp support and alternate memory test to the
    SACSng configuration

* Patch by Vince Husovsky, 7 Nov 2002:
  Add "-n" to linker options to get rid of "Not enough room for
  program headers" problem

* Patch by David M黮ler, 05 Nov 2002
  Rename CONFIG_PLL_INPUT_FREQ to CONFIG_SYS_CLK_FREQ
  so we can use an already existing name

* Patch by Pierre Aubert, 05 Nov 2002
  Hardware relatied improvments in FDC boot code

* Patch by Holger Schurig, 5 Nov 2002:
  Make the PXA really change it's frequency

* Patch by Pierre Aubert, 05 Nov 2002
  Add support for slave serial Spartan 2 FPGAs

* Fix uninitialized memory (MAC  address)  in  8xx  SCC/FEC  ethernet
  drivers

* Add support for log buffer which can be passed to Linux kernel's
  syslog mechanism; used especially for POST results.

* Patch by Klaus Heydeck, 31 Oct 2002:
  Add initial support for kup4k board

* Patch by Robert Schwebel, 04 Nov 2002:
  - use watchdog to reset PXA250 systems
  - added progress callbacks to (some of the) ARM code
  - update for Cogent CSB226 board

* Add support for FPS860 board

* Patch by Guillaume Alexandre,, 04 Nov 2002:
  Improve PCI access on 32-bits Compact PCI bus

* Fix mdelay() on TRAB - this was still the debugging version with
  seconds instead of ms.

* Patch by Robert Schwebel, 1 Nov 2002:
  XScale related cleanup (affects all ARM boards)

* Cleanup of names and README.

======================================================================
Notes for U-Boot 0.1.0:
======================================================================

This is the initial version of "Das U-Boot", the Universal Boot Loader.

It is based on version 2.0.0 (the "Halloween Release") of PPCBoot.
For information about the history of the project please see the
PPCBoot project page at http://sourceforge.net/projects/ppcboot

======================================================================