Kontron KTAM3874-pITX Manual de usuario descargar pdf (Pagina 14)

KTD-S0057-I Page 10 U-Boot Environment

KTAM3874/pITX Software Guide

Example:

DisplayID data:

----------------------------

Type I Timing Data Block

Pixel clock : 83500000 Hz

Horizontal active : 1280 clocks

Horizontal sync start : 1430 clocks

Horizontal sync end : 1530 clocks

Horizontal total : 1680 clocks

Horizontal sync pol. : positive

Vertical active : 800 lines

Vertical sync start : 815 lines

Vertical sync end : 816 lines

Vertical total : 831 lines

Vertical sync pol. : positive

Display Device Data Block

Color depth : 24 bit

Display Interface Data Block

Number of channels : 1

Color mapping : FPDI

3 U-Boot Environment

You can use the U-Boot environment to configure the behavior of U-Boot as you like. Default settings:

autoload=yes

baudrate=115200

bootcmd=run sdboot;run mmcboot;run spiboot;run nfsboot

bootdelay=3

bootfile=uImage

bootmmc=setenv root_bootargs root=/dev/mmcblk${device}p${rootpart} rw rootwait;setenv interface mmc;

mmc rescan ${device} && run fsdetect

cpuspeed=cpu_maxfreq=800

cputype=AM3874

debug_bootargs=earlyprink

default_bootargs=console=ttyO0,115200n8 vram=50M notifyk.vpssm3_sva=0xBF900000 ti814xfb.vram=0:16M,1:16M

noinitrd --no-log

doboot=run setmemarg;run loadscript;run setbootarg;run loadkernel;

ethaddr=xx:xx:xx:xx:xx:xx

eth1addr=xx:xx:xx:xx:xx:xx

ethact=cpsw

extra_bootargs=bootdisp1=hdmi bootdisp2=none mirrordisp=1 pcie=1 audio=1 lan=1 sata=1 can0=1 can1=1

uart5_mode=rs232 tm46_enable=0 tm57_enable=0

uart2_enable=0 uart4_enable=0 spi3_enable=0

fsdetect=setenv fsloader ext2load ${interface} ${device};fatinfo ${interface} ${device} && setenv fsloader fatload ${interface}

${device};run doboot

lcdmode=0,0,0,0,0,0,0

loadaddr=0x80009000

loadkernel=${fsloader} ${loadaddr} ${bootfile} && bootm ${loadaddr}

loadscript=${fsloader} ${scriptaddr} ${scriptfile} && source ${scriptaddr}

mmcboot=setenv device 1; setenv rootpart 1; run bootmmc

memsize=2048

nfsboot=setenv autoload no; dhcp;setenv root_bootargs root=/dev/nfs ${nfsroot} ip=${ipaddr}:${serverip}:${gatewayip}:

${netmask}:${hostname}:eth0:off;setenv fsloader tftp;run doboot;

nfsroot=nfsroot=192.168.1.1:/nfsroot

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