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Diffstat (limited to 'doc/README.PIP405')
| -rw-r--r-- | doc/README.PIP405 | 375 |
1 files changed, 0 insertions, 375 deletions
diff --git a/doc/README.PIP405 b/doc/README.PIP405 deleted file mode 100644 index 012db1c..0000000 --- a/doc/README.PIP405 +++ /dev/null @@ -1,375 +0,0 @@ -U-Boot Changes due to PIP405 Port: -=================================== - -Changed files: -============== -- MAKEALL added PIP405 -- makefile added PIP405 -- common/Makefile added Floppy disk and SCSI support -- common/board.c added PIP405, SCSI support, get_PCI_freq() -- common/bootm.c added IH_OS_U_BOOT, IH_TYPE_FIRMWARE -- common/cmd_i2c.c added "defined(CONFIG_PIP405)" -- common/cmd_ide.c changed div. functions to work with block device - description - added ATAPI support -- common/command.c added SCSI and Floppy support -- common/console.c replaced // with /* comments - added console settings from environment -- common/devices.c added ISA keyboard init -- common/main.c corrected the read of bootdelay -- arch/powerpc/cpu/ppc4xx/405gp_pci.c excluded file from PIP405 -- arch/powerpc/cpu/ppc4xx/i2c.c added 16bit read write I2C support - added page write -- arch/powerpc/cpu/ppc4xx/speed.c added get_PCI_freq -- arch/powerpc/cpu/ppc4xx/start.S added CONFIG_IDENT_STRING -- disk/Makefile added part_iso for CD support -- disk/part.c changed to work with block device description - added ISO CD support - added dev_print (was ide_print in cmd_ide.c) -- disk/part_dos.c changed to work with block device description -- disk/part_mac.c changed to work with block device description -- include/ata.h added ATAPI commands -- include/cmd_bsp.h added PIP405 commands definitions -- include/cmd_condefs.h added Floppy and SCSI support -- include/cmd_disk.h changed to work with block device description -- include/config_LANTEC.h excluded CONFIG_CMD_FDC and CONFIG_CMD_SCSI -- include/config_hymod.h excluded CONFIG_CMD_FDC and CONFIG_CMD_SCSI -- include/flash.h added INTEL_ID_28F320C3T 0x88C488C4 -- include/i2c.h added "defined(CONFIG_PIP405)" -- include/image.h added IH_OS_U_BOOT, IH_TYPE_FIRMWARE -- include/u-boot.h moved partitions functions definitions to part.h - added "defined(CONFIG_PIP405)" - added get_PCI_freq() definition -- rtc/Makefile added MC146818 RTC support -- tools/mkimage.c added IH_OS_U_BOOT, IH_TYPE_FIRMWARE - -Added files: -============ -- board/pip405 directory for PIP405 -- board/pip405/cmd_pip405.c board specific commands -- board/pip405/config.mk config make -- board/pip405/flash.c flash support -- board/pip405/init.s start-up -- board/pip405/kbd.c keyboard support -- board/pip405/kbd.h keyboard support -- board/pip405/Makefile Makefile -- board/pip405/pci_piix4.h southbridge definitions -- board/pip405/pci_pip405.c PCI support for PIP405 -- board/pip405/pci_pip405.h PCI support for PIP405 -- board/pip405/pip405.c PIP405 board init -- board/pip405/pip405.h PIP405 board init -- board/pip405/pip405_isa.c ISA support -- board/pip405/pip405_isa.h ISA support -- board/pip405/u-boot.lds Linker description -- board/pip405/u-boot.lds.debugLinker description debug -- board/pip405/sym53c8xx.c SYM53C810A support -- board/pip405/sym53c8xx_defs.h SYM53C810A definitions -- board/pip405/vga_table.h definitions of tables for VGA -- board/pip405/video.c CT69000 support -- board/pip405/video.h CT69000 support -- common/cmd_fdc.c Floppy disk support -- common/cmd_scsi.c SCSI support -- disk/part_iso.c ISO CD ROM support -- disk/part_iso.h ISO CD ROM support -- include/cmd_fdc.h command forFloppy disk support -- include/cmd_scsi.h command for SCSI support -- include/part.h partitions functions definitions - (was part of u-boot.h) -- include/scsi.h SCSI support -- rtc/mc146818.c MC146818 RTC support - - -New Config Switches: -==================== -For detailed description, refer to the corresponding paragraph in the -section "Changes". - -New Commands: -------------- -CONFIG_CMD_SCSI SCSI Support -CONFIG_CMF_FDC Floppy disk support - -IDE additions: --------------- -CONFIG_IDE_RESET_ROUTINE defines that instead of a reset Pin, - the routine ide_set_reset(int idereset) is used. -ATAPI support (experimental) ----------------------------- -CONFIG_ATAPI enables ATAPI Support - -SCSI support (experimental) only SYM53C8xx supported ----------------------------------------------------- -CONFIG_SCSI_SYM53C8XX type of SCSI controller -CONFIG_SYS_SCSI_MAX_LUN 8 number of supported LUNs -CONFIG_SYS_SCSI_MAX_SCSI_ID 7 maximum SCSI ID (0..6) -CONFIG_SYS_SCSI_MAX_DEVICE CONFIG_SYS_SCSI_MAX_SCSI_ID * CONFIG_SYS_SCSI_MAX_LUN - maximum of Target devices (multiple LUN support - for boot) - -ISO (CD-Boot) partition support (Experimental) ----------------------------------------------- -CONFIG_ISO_PARTITION CD-boot support - -RTC ----- -CONFIG_RTC_MC146818 MC146818 RTC support - -Keyboard: ---------- -CONFIG_ISA_KEYBOARD Standard (PC-Style) Keyboard support - -Video: ------- -CONFIG_VIDEO_CT69000 Enable Chips & Technologies 69000 Video chip - CONFIG_VIDEO must be defined also - -External peripheral base address: ---------------------------------- -CONFIG_SYS_ISA_IO_BASE_ADDRESS address of all ISA-bus related parts - _must_ be defined for ISA-bus parts - -Identify: ---------- -CONFIG_IDENT_STRING added to the U_BOOT_VERSION String - -Environment / Console: ----------------------- - -CONFIG_SYS_CONSOLE_IS_IN_ENV if defined, stdin, stdout and stderr used from - the values stored in the evironment. - -CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE if defined, console_overwrite() decides if the - values stored in the environment or the standard - serial in/out put should be assigned to the console. - -CONFIG_SYS_CONSOLE_ENV_OVERWRITE if defined, the start-up console switching - are stored in the environment. - -PIP405 specific: ----------------- -CONFIG_PORT_ADDR address used to read boot configuration -MULTI_PURPOSE_SOCKET_ADDR address of the multi purpose socked -SDRAM_EEPROM_WRITE_ADDRESS addresses of the serial presence detect -SDRAM_EEPROM_READ_ADDRESS EEPROM on the SDRAM module. - - -Changes: -======== - -Added Devices: -============== - -Floppy support: ---------------- -Support of a standard floppy disk controller at address CONFIG_SYS_ISA_IO_BASE_ADDRESS -+ 0x3F0. Enabled with define CONFIG_CMD_FDC. Reads a unformated floppy disk -with a image header (see: mkimage). No interrupts and no DMA are used for this. -Added files: -- common/cmd_fdc.c -- include/cmd_fdc.h - -SCSI support: -------------- -Support for Symbios SYM53C810A chip. Implemented as follows: -- without disconnect -- only asynchrounous -- multiple LUN support (caution, needs a lot of RAM. define CONFIG_SYS_SCSI_MAX_LUN 1 to - save RAM) -- multiple SCSI ID support -- no write support -- analyses the MAC, DOS and ISO pratition similar to the IDE support -- allows booting from SCSI devices similar to the IDE support. -The device numbers are not assigned like they are within the IDE support. The first -device found will get the number 0, the next 1 etc. If all SCSI IDs (0..6) and all -LUNs (8) are enabled, 56 boot devices are possible. This uses a lot of RAM since the -device descriptors are not yet dynamically allocated. 56 boot devices are overkill -anyway. Please refer to the section "Todo" chapter "block device support enhancement". -The SYM53C810A uses 1 Interrupt and must be able of mastering the PCI bus. -Added files: -- common/cmd_scsi.c -- common/board.c -- include/cmd_scsi.h -- include/scsi.h -- board/pip405/sym53c8xx.c -- board/pip405/sym53c8xx_defs.h - -ATAPI support (IDE changes): ----------------------------- -Added ATAPI support (with CONFIG_ATAPI) in the file cmd_ide.c. -To support a hardreset, when the IDE reset pin is not connected to the -CONFIG_SYS_PC_IDE_RESET pin, the switch CONFIG_IDE_RESET_ROUTINE has been added. When -this switch is enabled the routine void ide_set_reset(int idereset) must be -within the board specific files. -Only read from ATAPI devices are supported. -Found out that the function trim_trail cuts off the last character if the whole -string is filled. Added function cpy_ident instead, which trims also leading -spaces and copies the string in the buffer. -Changed files: -- common/cmd_ide.c -- include/ata.h - -ISO partition support: ----------------------- -Added CD boot support for El-Torito bootable ISO CDs. The bootfile image must contain -the U-Boot image header. Since CDs do not have "partitions", the boot partition is 0. -The bootcatalog feature has not been tested so far. CD Boot is supported for ATAPI -("diskboot") and SCSI ("scsiboot") devices. -Added files: -- disk/iso_part.c -- disk/iso_part.h - -Block device changes: ---------------------- -To allow the use of dos_part.c, mac_part.c and iso_part.c, the parameter -block_dev_desc will be used when accessing the functions in these files. The block -device descriptor (block_dev_desc) contains a pointer to the read routine of the -device, which will be used to read blocks from the device. -Renamed function ide_print to dev_print and moved it to the file disk/part.c to use -it for IDE ATAPI and SCSI devices. -Please refer to the section "Todo" chapter "block device support enhancement". -Added files: -- include/part.h -changed files: -- disk/dos_part.c -- disk/dos_part.h -- disk/mac_part.c -- disk/mac_part.h -- disk/part.c -- common/cmd_ide.c -- include/u-boot.h - - -MC146818 RTC support: ---------------------- -Added support for MC146818 RTC with defining CONFIG_RTC_MC146818. The ISA bus IO -base address must be defined with CONFIG_SYS_ISA_IO_BASE_ADDRESS. -Added files: -- rtc/mc146818.c - -Standard ISA bus Keyboard support: ----------------------------------- -Added support for the standard PC kyeboard controller. For the PIP405 the superIO -controller must be set up previously. The keyboard uses the standard ISA IRQ, so -the ISA PIC must also be set up. -Added files: -- board/pip405/kbd.c -- board/pip405/kbd.h -- board/pip405/pip405_isa.c -- board/pip405/pip405_isa.h - -Chips and Technologie 69000 VGA controller support: ---------------------------------------------------- -Added support for the CT69000 VGA controller. -Added files: -- board/pip405/video.c -- board/pip405/video.h -- board/pip405/vga_table.h - - -Changed Items: -============== - -Identify: ---------- -Added the config variable CONFIG_IDENT_STRING which will be added to the -"U_BOOT_VERSION __TIME__ DATE___ " String, to allows to identify intermidiate -and custom versions. -Changed files: -- arch/powerpc/cpu/ppc4xx/start.s - -Firmware Image: ---------------- -Added IH_OS_U_BOOT and IH_TYPE_FIRMWARE to the image definitions to allows the -U-Boot update with prior CRC check. -Changed files: -- include/image.h -- tools/mkimage.c -- common/cmd_bootm.c - -Correct PCI Frequency for PPC405: ---------------------------------- -Added function (in arch/powerpc/cpu/ppc4xx/speed.c) to get the PCI frequency for PPC405 CPU. -The PCI Frequency will now be set correct in the board description in common/board.c. -(was set to the busfreq before). -Changed files: -- arch/powerpc/cpu/ppc4xx/speed.c -- common/board.c - -I2C Stuff: ----------- -Added defined(CONFIG_PIP405) at several points in common/cmd_i2c.c. -Added 16bit read/write support for I2C (PPC405), and page write to -I2C EEPROM if defined CONFIG_SYS_EEPROM_PAGE_WRITE_ENABLE. -Changed files: -- arch/powerpc/cpu/ppc4xx/i2c.c -- common/cmd_i2c.c - -Environment / Console: ----------------------- -Although in README.console described, the U-Boot has not assinged the values -found in the environment to the console. Corrected this behavior, but only if -CONFIG_SYS_CONSOLE_IS_IN_ENV is defined. -If CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE is defined, console_overwrite() decides if the -values stored in the environment or the standard serial in/output should be -assigned to the console. This is useful if the environment values are not correct. -If CONFIG_SYS_CONSOLE_ENV_OVERWRITE is defined the devices assigned to the console at -start-up time will be written to the environment. This means that if the -environment values are overwritten by the overwrite_console() routine, they will be -stored in the environment. -Changed files: -- common/console.c - -Correct bootdelay intepretation: --------------------------------- -Changed bootdelay read from the environment from simple_strtoul (unsigned) to -simple_strtol (signed), to be able to get a bootdelay of -1. -Changed files: -- common/main.c - -Todo: -===== - -Block device support enhancement: ---------------------------------- -Consider to unify the block device handling. Instead of using diskboot for IDE, -scsiboot for SCSI and fdcboot for floppy disks, it would make sense to use only -one command ("devboot" ???) with a parameter of the desired device ("hda1", "sda1", -"fd0" ???) to boot from. The other ide commands can be handled in the same way -("dev hda read.." instead of "ide read.." or "dev sda read.." instead of -"scsi read..."). Todo this, a common way of assign a block device to its name -(first found ide device = hda, second found hdb etc., or hda is device 0 on bus 0, -hdb is device 1 on bus 0 etc.) as well as the names (hdx for ide, sdx for scsi, fx for -floppy ???) must be defined. -Maybe there are better ideas to do this. - -Console assingment: -------------------- -Consider to initialize and assign the console stdin, stdout and stderr as soon as -possible to see the boot messages also on an other console than serial. - - -Todo for PIP405: -================ - -LCD support for VGA: --------------------- -Add LCD support for the CT69000 - -Default environment: --------------------- -Consider to write a default environment to the OTP part of the EEPROM and use it -if the normal environment is not valid. Useful for serial# and ethaddr values. - -Watchdog: ---------- -Implement Watchdog. - -Files clean-up: ---------------- -Following files needs to be cleaned up: -- cmd_pip405.c -- flash.c -- pci_pip405.c -- pip405.c -- pip405_isa.c -Consider to split up the files in their functions. |