Kontron KTAM3874-pITX - Manual (Page 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