On 02/04/2013 10:54:52 PM, Ratheendran R wrote:
Dear All,
I am using u-boot given by our Samsung based s3c2416 board vendor
which
support SD CARD based boot,I am trying to change the boot command
variable
adding few more steps to it from the serial console. The problem is
I am
not able to add all the steps to the bootcmd variable into the
environment,it is truncated midway.so can any one share your valuable
experience in fixing this issue.
I am trying the below command..
setenv bootcmd "sleep 1;nand scrub ;sleep 1;nand erase;sleep 1;movi
read
3800000# 40000 c0000000 ;sleep 1;nand write c0000000 0 40000;sleep
1;movi
read kernel c0000000;sleep 1;nand write c0000000 40000 200000;sleep
1;movi
read 3600000# 3800000 c0000000 ;sleep 1; nand write.yaffs c0000000
400000
35db4c0; sleep1; movi read 3600000# 3800000 c0000000; nand write.yaffs
c0000000 6000000 35db4c0"
Using "nand scrub" in this manner is totally wrong. Even without
scrubbing, erasing and rewriting NAND on each boot is not a good idea.
It also indicates you're using an old U-Boot, as for a while now
full-chip erase commands have to be written as "nand erase.chip". Plus
I don't see a "movi" command in mainline U-Boot. Maybe you should be
asking your board vendor for support?
Why do you need all those sleep commands? You could shorten your
bootcmd quite a bit by removing them...
-Scott
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
