u-boot + kernel (help required)
srideep.devireddy at wipro.com
srideep.devireddy at wipro.com
Wed Nov 9 21:50:20 EST 2005
Hi ,
we were able to get the u-boot up on MPC8272ADS board . We are just
struck up in bringing up the Linux... we get the following errors ..
actually we made a uImage from vmlinux and tried to tftp and used bootm
100000 , we eneded up with these errors ...actually after the message
Uncompressing Kernel Image ... OK board gets reset .Any help would be
thankfull.
=> tftp 100000 vmlinux.72
Using FCC1 ETHERNET device
TFTP from server 10.0.0.1; our IP address is 10.0.0.2
Filename 'vmlinux.72'.
Load address: 0x100000
Loading:
#################################################################
#################################################################
#######################
done
Bytes transferred = 782424 (bf058 hex)
=> bootm 100000
## Booting image at 00100000 ...
Image Name: Linux-2.4.22
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 782360 Bytes = 764 kB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
U-Boot 1.1.1 (Nov 8 2005 - 16:19:13)
MPC8272 Reset Status: Check Stop, External Soft, External Hard
MPC8272 Clock Configuration
- Bus-to-Core Mult 3.5x, VCO Div 2, 60x Bus Freq 30-85 , Core Freq
100-300
- dfbrg 1, corecnf 0x1e, busdf 3, cpmdf 1, plldf 0, pllmf 3
- vco_out 400000000, scc_clk 100000000, brg_clk 25000000
- cpu_clk 350000000, cpm_clk 200000000, bus_clk 100000000
- pci_clk 66666666
CPU: MPC8272 (HiP7 Rev 14, Mask A.0 1K50M) at 350 MHz
Board: Motorola MPC8272ADS
DRAM: 64 MB
FLASH: 8 MB
In: serial
Out: serial
Err: serial
Net: FCC1 ETHERNET
Hit any key to stop autoboot: 0
=>
Best Regards
Srideep
-----Original Message-----
From: Sakethan Kotta (WT01 - Broadband Networks)
Sent: Tuesday, November 08, 2005 9:45 AM
To: Srideep DeviReddy (WT01 - Broadband Networks)
Cc: sundar raman (WT01 - Broadband Networks)
Subject: RE: Emailing: u-boot
Hi Srideep,
Nice to here this. Congrats. What was the problem? Please do reply for
this.
U can use "bootp or tftp". We have used "bootp". It has 2 options, one
is loading address & the other one is source file name. If you are not
giving the source address in the command line, bootp will take the
default address. If you don't supply the file name at the command line,
then bootp will take the file from the "DHCP server".
Before doing the TFTP, you need to get the IP Address for the board. For
that you need to run a DHCP server. Board also takes the TFTP server IP
from DHCP and will do the TFTP to down load the file. Make sure that
some 15MB from the starting of the SDRAM should not be used for the
Bootp, as that space will be used for the kernel booting.
Once the file is transferred, u have to execute the "bootm <Address>".
It will boot the kernel.
Regards,
saketh
-----Original Message-----
From: Srideep DeviReddy (WT01 - Broadband Networks)
Sent: Monday, November 07, 2005 4:29 PM
To: Sakethan Kotta (WT01 - Broadband Networks)
Subject: RE: Emailing: u-boot
Hi Saketh ,
We got u-boot up on MPC8272ADS board, thanks for your help. Right
now we are trying to get linux kernel and get the os up. As suggestion
from you , before we start this . I have a doubt at what location
(address) do we need to do a TFTP .so that when we do a go.. It starts
executing...
Best Regards
Srideep
-----Original Message-----
From: Sakethan Kotta (WT01 - Broadband Networks)
Sent: Friday, October 28, 2005 10:29 AM
To: Srideep DeviReddy (WT01 - Broadband Networks)
Cc: sundar raman (WT01 - Broadband Networks)
Subject: RE: Emailing: u-boot
Hi,
I have changed the source code and compiled. So you may need the
latest source or map file to sync the GDB with the executable.
With thanks & regards,
saketh
-----Original Message-----
From: Srideep DeviReddy (WT01 - Broadband Networks)
Sent: Friday, October 28, 2005 10:19 AM
To: Sakethan Kotta (WT01 - Broadband Networks)
Cc: sundar raman (WT01 - Broadband Networks)
Subject: RE: Emailing: u-boot
Hi sakethan,
I tried programming the U-boot.bin on to the flash at 0xfff00000
keeping the jumper pins to 2&3(BCSR) . After programming I changed them
to 1&2(flash) , and tried connecting to serial but still not able to get
u-boot prompt .
When I try to used gdb and debug we get an error like given below
(gdb) target remote 10.145.102.120:2001
Remote debugging using 10.145.102.120:2001
0xfff00100 in _start () at /u-boot-1.1.3/cpu/mpc8260/start.S:1046
warning: Source file is more recent than executable.
1046 blr
(gdb) cont
Continuing.
Program received signal SIGSTOP, Stopped (signal).
0xfff00128 in boot_warm () at /u-boot-1.1.3/cpu/mpc8260/start.S:1046
1046 blr
(gdb) d
(gdb) b relocate_code
Breakpoint 1 at 0xff803558: file /u-boot-1.1.3/cpu/mpc8260/start.S, line
1046.
(gdb) cont
Continuing.
Program received signal SIGSTOP, Stopped (signal).
0xfff00124 in boot_warm () at /u-boot-1.1.3/cpu/mpc8260/start.S:1046
1046 blr
I am getting an error in 1046 line of start.S file .
Regards
Srideep
-----Original Message-----
From: Sakethan Kotta (WT01 - Broadband Networks)
Sent: Thursday, October 27, 2005 2:40 PM
To: Srideep DeviReddy (WT01 - Broadband Networks)
Cc: sundar raman (WT01 - Broadband Networks)
Subject: Emailing: u-boot
Hi Srideep & Sunadar,
I have attached a U-Boot.Bin file. Please program this on the ADS
board at address location 0xFFF00000 & keep the jumper J9 for 2&3 pins.
Please do this and let me know the results. This should work fine.
With thanks & regards,
saketh
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