Running a script in uboot without tftp/dhcp use

[gbiradar]

Hi Guys, i want to copy a script in SD/MMC card, this script will test RAM, when we enter uboot this script should run and check RAM working, I have already seen the tftp/dhcp use but i want to copy the script manually and run the script. can anyone help me on this.

[Yuri]

   You may create additional FAT partition on SD card,

copy Your script to FAT and load the script under U-boot ,

using command "fatload".

Have a great day,
Yuri

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[gbiradar · Accepted solution]

i have got the answer for this,instead of creating a seperate FAT partition, using dd utility, say sudo dd if=xyz.scr of=/dev/sdb bs=512 seek=8192 count=2 conv=fysnc

in uboot > mmv read 0x12000000 0x2000 0x100

uboot > source 0x12000000

using this, script content run properly but i need to know how we can decide the address(0x2000). if you could elaborate how we can decide the address in lehman's way. thanks in advance for helping.

[gbiradar]

i have explore the answer is 0x2000 <=> 8192

8192* 512(bs) = 4MB, by default bs is 512 bytes.

[gbiradar]

its mmc not mmv. sorry for the error.