board is not booting without sd card

vigneshwaran sekar

hi all

we r trying to boot our DM365 board by spectrum digital through the nand flash

but our board is not booting without sd card ie

whenever i am pulling the sd card from the slot the board is not booting but the switches sw4 and sw5 are set according to nand flash boot mode

and our nand earse and nand write is also successful and our board is booting successfully after that

but that sd card if we r putting it out of the slot even console window is not coming.Can anybody sortout the problem is there some connecton b/w sd card and nand

here are the details of the board

DM365 EVM REV F

and the commands we had typed

DM365 EVM > tftp 0x80700000 uImage
TFTP from server 192.168.1.25; our IP address is 192.168.1.197
Filename 'uImage'.
Load address: 0x80700000
Loading: #################################################################
           #################################################################
           ###########
done
Bytes transferred = 2066356 (1f87b4 hex)

DM365 EVM > nand erase 0x400000 0x200000

NAND erase: device 0 offset 0x400000, size 0x200000
Erasing at 0x400000 -- 100% complete.
OK

DM365 EVM > nand write 0x80700000 0x400000 0x200000

NAND write: device 0 offset 0x400000, size 0x200000
   2097152 bytes written: OK

    Setup the bootcmd ENV variable to boot the Linux Kernel image from NAND partition

DM365 EVM >setenv bootcmd 'nboot 0x80700000 0 0x400000; bootm'

DM365 EVM >saveenv

              RESTARTED THE BOARD THEN

Hit any key to stop autoboot: 0

Loading from NAND 1GiB 3,3V 8-bit, offset 0x400000
   Image Name:   Linux-2.6.18_pro500-davinci_evm-
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2050052 Bytes = 2 MB
   Load Address: 80008000
   Entry Point: 80008000
## Booting kernel from Legacy Image at 80700000 ...
   Image Name:   Linux-2.6.18_pro500-davinci_evm-
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2050052 Bytes = 2 MB
   Load Address: 80008000
   Entry Point: 80008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux........................................................

thanx

kailash

over 14 years ago

0 Sudhakar Rajashekhara over 14 years ago

TI__Expert 5170 points

Hi Kailash,

Can you post the values of SW4 and SW5 switches? Also when you are saying that Console window is not coming, do you mean that you are not able to see anything after "Uncompressing Linux......................."?

Regards, Sudhakar

0 vigneshwaran sekar over 14 years ago in reply to Sudhakar Rajashekhara

Intellectual 550 points

hi there

for this 0=off,1=0n

for nand boot

the sw4=000000 (well we have tried with 111111)

sw5=000010

for sd card

sw4=010000(and we have trued with 101111)

sw5=000010

and console window mean

the initial window coming after the minicom

(after uncompressing kernel..........................

everything coming right)

thanx

kailash

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board is not booting without sd card