View source for U-boot console commands

== NAND Flash ==

:'''Nand Flash Read'''

:''nand read <SDRAM address> <NAND Flash address> <Bytes>''

:Example: nand read 80000000 400000 b40000

:Description: Copies 11,25MByte from NAND Flash address 0x40_0000 to SDRAM address 0x8000_0000

:'''Nand Flash Erase'''

:''nand erase <Block base address> <Bytes>''

:Example: nand erase 400000 40000

:Description: Deletes NAND Flash content from address 0x40_0000 to 0x43_FFFF

:Note: The Bytes information needs to be block size aligned!

:'''Nand Flash Write'''

:''nand write <SDRAM address> <NAND Flash address> <Bytes>''

:Example: nand write 80000000 400000 b40000

:Description: Cpoies 11,25MByte from SDRAM address 0x8000_0000 to NAND Flash address 0x40_0000

:Note: The Bytes information needs to be page size aligned!

:'''Show bad NAND Flash blocks'''

:''nand bad''

:Description: Shows the bad NAND Flash blocks.

:'''Show NAND FLash content'''

:''nand dump <NAND Flash address>''

:Example: nand dump 400000

:Description: Shows the content of the specified NAND Flash block

== SPI Flash ==

:'''SPI Flash Init'''

:''sf probe <bus:cs> [frequency]''

:Example: sf probe 0:1

:Description: Initializes the OnBoard SPI Flash

:'''SPI Flash Read'''

:''sf read <SDRAM address> <SPI Flash address> <Bytes>''

:Example: sf read 80000000 40000 10000

:Description: Copies 64kByte from SPI Flash address 0x4_0000 to SDRAM address 0x8000_0000

:'''SPI Flash Write'''

:''sf write <SDRAM address> <SPI Flash address> <Bytes>''

:Example: sf write 80000000 40000 10000

:Description: Copies 64kByte from SDRAM address 0x8000_0000 to SPI Flash address 0x4_0000

:'''SPI Flash Erase'''

:''sf erase <SPI Flash address> <Bytes>''

:Example: sf erase 40000 10000

:Description: Deletes SPI Flash content from address 0x4_0000 to 0x4_FFFF 

:Note: The Bytes information needs to be sector size aligned!

== LCD contoller ==

:'''Show LCD controller settings'''

:''lcdinfo''

:Example:   
  Display Resolution: 800 x 480 pixels
  Display Type:       Active Color Display
  Pixel Clock:        22 MHz
  Bits per Pixel:     16 Bits/Pixel
  Pixel Polarity:     Active High
  VSYNC Polarity:     Active Low
  HSYNC Polarity:     Active Low
  Clock Polarity:     Pos. Edge
  Output En Polarity: Active High
  HSYNC Puls Width:   64 Clock Cycles
  HSYNC Back Porch:   86 Clock Cycles
  HSYNC Front Porch:  42 Clock Cycles
  VSYNC Puls Width:   2 Line Cycles
  VSYNC Back Porch:   33 Line Cycles
  VSYNC Front Porch:  10 Line Cycles

== GPIO's ==

:'''Show DHCOM GPIO settings'''

:''gpioinfo''

:Example:
  GPIO_A: Direction = Input
          State     = 0
  GPIO_B: Direction = Input
          State     = 0
  GPIO_C: Direction = Input
          State     = 0
  GPIO_D: Direction = Input
          State     = 0
  GPIO_E: Direction = Input
          State     = 1
  GPIO_F: Direction = Input
          State     = 1
  GPIO_G: Direction = Output
          State     = 1
  GPIO_H: Direction = Input
          State     = 1
  GPIO_I: Direction = Input
          State     = 1
  GPIO_J: Direction = Input
          State     = 1
  GPIO_K: Direction = Input
          State     = 0

== SD/MMC Card ==

:'''Switch between MicroSD and SD Slot'''

:''mmcswitch <Slot number>''

:Example: mmcswitch 2

:Description: Switch between SD/MMC Slots: 1 --> SD/MMC Slot, 2 --> MicroSD Slot

:'''Initialize SD/MMC Card'''

:''mmcinit''

:Description: Initialize new inserted SD Card

== Filesystem ==

:'''Show Filesystem information'''

:''fatinfo <interface> <device>''

:Example: fatinfo mmc 1

 Interface: MMC
  Device 1: Vendor: Man 094150 Snr 266e068c Rev: 1.0 Prod: AF UD
            Type: Removable Hard Disk
            Capacity: 121.2 MB = 0.1 GB (248320 x 512)
  Partition 1: Filesystem: FAT16 "NO NAME    "

:'''List files'''

:''fatls <interface> <device> <directory>''

:Example 1: fatls mmc 1

:Example 2: fatls mmc 1 /folder

:'''Load Files from SD Card to SDRAM'''

:''fatload <interface> <device> <SDRAM address> <directory+filename>''

:Example 1: fatload mmc 1 80100000 nk.gz

:Example 2: fatload mmc 1 80100000 /folder/nk.gz

== Ethernet ==

:'''Load File via TFTP to SDRAM'''

:''tftp <SDRAM address> <directory+filename>''

:Example: tftp 80100000 nk.gz

:Example TFTP Server: "Winagents TFTP Server Manager"

:Note: For TFTP download it is necessary to config the ENV variables "ipaddr" and "serverip"

:'''Ping'''

:''ping <IP address>''

:Example: ping 192.168.55.32

:'''Read PHY register via MII interface'''

:''mii dump <PHY address> <PHY register>''

:Example: mii dump 1 0

:Description: Shows PHY control register content.

== Environment ==

:'''Show ENV variables'''

:''printenv''

 bootdelay=0
 baudrate=38400
 ipaddr=192.168.55.230
 serverip=192.168.55.36
 gatewayip=192.168.55.36
 netmask=255.255.255.0
 frias=5
 kernel=uImage
 bootargs=console=ttymxc0,115200 root=/dev/mmcblk0p2
 nandbootwince=update;bootwince 00200000
 splashimage=0x000c0000
 save_ENV_to_flash=setenv ENVinFlash 1; saveenv
 ENVinFlash=1
 ethaddr=00:04:a3:34:b6:0d
 ethact=FEC0
 winceimagetype=nk.gz
 winceimagesize=00ba55ee
 loadaddr=00200000
 bootcmd=run nandbootwince
 filesize=212050
 Environment size: 449/262140 bytes

:'''Set ENV variables'''

:''setenv <ENV name> <ENV value>''

:Example: setenv ipaddr 192.168.55.2

:Note: If you need to edit "bootcmd" it is necessary to insert ";" between the unique commands. You can enter ";" at the command line with "\;".

:'''Save ENV variables'''

:''saveenv''

:'''Erase all ENV variables'''

:''eraseenv''

:Note: It is necessary to restart the system after "eraseenv", to restore the default ENV settings.

== Update ==

:Note: See also Bootloader subitem Flash Update.

:'''iMX25_update.bmp file'''

:''update''

:Description: Starts Flash update with "iMX25_update.bmp" file.

:'''Command line'''

:''update <type> [filename]''

:Type:

:wince = WinCE image update (default file names nk.gz or nk.bin) + ENV update 

:linux = Linux image update (default file name uImage) + ENV update (default script file name uImage.env)

:flash = Complete flash image update

:bootloader = Bootloader update (default file name u-boot.bin)

:splash = Bootbitmap update (default file name splash.bmp)

:settings = Settings block update (default file name settings.bin)

== I2C ==

:'''List available devices'''

:''i2c probe''

 Valid chip addresses: 00 57 6F
 0x5F = DHCOM i.MX25 Core Module EEPROM
 0x6F = DHCOM i.MX25 Core Module Real Time Clock

:'''Read'''

:''i2c md <I2C address> <start address> <end address>''

:Example: i2c md 57 10 20

:Description: Reads 16 Bytes from the address 0x10 to address 0x20.

:'''Write'''

:''i2c mw <I2C address> <I2C register> <Value> <Bytes>''

:Example: i2c mw 57 0 aa 5

:Description: Writes 0xaa to 5 Bytes from the offset 0.

== OS Boot ==

:'''WinCE'''

:''bootwince <Image address> [debug]''

:Example: bootwince 200000

:Description: The address 0x20_0000 specifies NAND Flash image address. The image is loaded from NAND flash to SDRAM. Next to that u-boot starts WinCE. The "debug" option make sure that the image wouldn't be started after uncompressing.

:Note: The Image address could also be an SDRAM address. But it is necessary to copy the Image (via tftp or nand flash commands) to the SDRAM before calling "bootwince". 

:''bootwince tftp''

:Note: The ENV variables "loadaddr" and "bootfile" needs to be set before calling the command. For *.gz image types the "loadaddr" should be set to 0x8290_0000 and for *.bin images the address should be 0x8100_0000.

:'''Linux'''

:''bootm <Kernel address> [arg]''

:Note: When booting a Linux kernel,‘arg' can be the address of an initrd image.

== Unzip ==

:''unzip <source address> <destination address>''

:Example: unzip 82900000 80100000

:Note: The unzip command is supporting the gzip file format.

== Bitmap ==

:'''Information'''

:''bmp info <Bitmap address>''

 Image size    : 800 x 480
 Bits per pixel: 8
 Compression   : 0

:'''Display'''

:'' bmp display <Bitmap SDRAM address> [x y]''

== Memory ==

:'''Display'''

:''md[.b, .w, .l] <address> [count]''

:Example: md.b 80100000 100

:'''Write'''

:''mw[.b, .w, .l] <address> <value> [count]''

:Example: mw.b 80100000 aa 100

:Description: Writes the value 0xaa to the next 0x100 bytes from the address 0x8010_0000. 

:'''Copy'''

:''cp[.b, .w, .l] <source> <destination> <count>''

== Show DHCOM Settings ==

:''settings''

:Example:   
  VALIDATION_ID:    "DH"
  DISPLAY_ID:       0x00
  LENGTH:           0x2c
  X_RESOLUTION:     800 pixel
  Y_RESOLUTION:     480 pixel
  PIXEL_CLOCK:      22200 kHz
  LCD_CONFIG_FLAGS: 0x3e3
  HSW:              64 pixel clocks
  VSW:              2 line clocks
  HFP:              42 pixel clocks
  HBP:              86 pixel clocks
  VFP:              10 line clocks
  VBP:              33 line clocks
  DATALINES:        16
  ACB:              0
  ACBI:             0
  GPIO_DIR:         0x01ff
  GPIO_STATE:       0x0000
  HW_CONFIG_FLAGS:  0x001e