Porting Linux on MPC8266 custom board

Porting Linux on MPC8266 custom board

[Vikrant_Basotra]

Hi All,
		I am porting Linux on MPC8266 custom board, after
getting in to Linux the system seems to be struck at a point.
Saved Environment variable:-
      bootargs console=ttyS0,11520 root=1f00 and downloaded the Kernel
image at address 0x02000000 in the RAM.
>From the u-boot prompt the bootm command is invoked as:- 
	bootm 0x02000000

After that what I get on the terminal is pasted below for your
reference.
I couldn't make out any thing from the output, can any body tell me
where I am doing wrong, and also I don't have any idea about the
bootargs argument "root". Can any body give the precise description of
this argument?


++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++++
=> bootm 02000000 ## Booting image at 02000000...
   Image Name:   2.4.24 MPC8260ADS
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    725838 Bytes = 708.8 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
Memory BAT mapping: BAT2=128Mb, BAT3=0Mb, residual: 0Mb

Linux version 2.4.24-pre2 (root@pmcserver) (gcc version 3.3.4) #2 Tue
Jul 5 15:05:10 IST 2005

On node 0 totalpages: 32768

zone(0): 32768 pages.

zone(1): 0 pages.

zone(2): 0 pages.

Kernel command line: console=ttyS0,115200 root=1f00

Warning: real time clock seems stuck!

Calibrating delay loop... 131.89 BogoMIPS

Memory: 127812k available (1232k kernel code, 412k data, 64k init, 0k
highmem)

Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)

Inode cache hash table entries: 8192 (order: 4, 65536 bytes)

Mount cache hash table entries: 512 (order: 0, 4096 bytes)

Buffer cache hash table entries: 8192 (order: 3, 32768 bytes)

Page-cache hash table entries: 32768 (order: 5, 131072 bytes)

POSIX conformance testing by UNIFIX

Linux NET4.0 for Linux 2.4

Based upon Swansea University Computer Society NET3.039

Initializing RT netlink socket

Starting kswapd

JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis
Communications AB.

i2c-core.o: i2c core module version 2.6.1 (20010830)

i2c-dev.o: i2c /dev entries driver module version 2.6.1 (20010830)

CPM UART driver version 0.01

ttyS0 on SMC1 at 0x0000, BRG7

ttyS1 on SMC2 at 0x0040, BRG8

ttyS2 on SCC1 at 0x8000, BRG1

ttyS3 on SCC2 at 0x8100, BRG2

pty: 256 Unix98 ptys configured
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	
Waiting eagerly,
Regards,
VB


DISCLAIMER:
This email (including any attachments) is intended for the sole use of the intended recipient/s and may contain material that is CONFIDENTIAL AND PRIVATE COMPANY INFORMATION. Any review or reliance by others or copying or distribution or forwarding of any or all of the contents in this message is STRICTLY PROHIBITED. If you are not the intended recipient, please contact the sender by email and delete all copies; your cooperation in this regard is appreciated.

Re: Porting Linux on MPC8266 custom board

[Komal Shah]

--- Vikrant_Basotra <Vikrant_Basotra@Satyam.com>
wrote:

> Hi All,
> 		I am porting Linux on MPC8266 custom board, after
> getting in to Linux the system seems to be struck at
> a point.
> Saved Environment variable:-
>       bootargs console=ttyS0,11520 root=1f00 and

root=1f00 is fine, but still better to use
root=/dev/mtdblock<n>. 

> 
> After that what I get on the terminal is pasted
> below for your
> reference.

Please enable the low level debugging CONFIG_DEBUG_LL.

Also it is good to enable to MTD debugging for tracing
the point at which it gives crashes if any.

> I couldn't make out any thing from the output, can
> any body tell me
> where I am doing wrong, and also I don't have any
> idea about the
> bootargs argument "root". Can any body give the
> precise description of
> this argument?

Hope you have enabled all the proper config options in
the kernel etc.

As you are using 2.4.x. I can't help on this. Let me
know once you are done with 2.6.x

---Komal Shah

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

Re: Porting Linux on MPC8266 custom board

[Wolfgang Denk]

In message <D8595042F3765A4285B848A78A2C2ED10162C4@bsdmsg002.corp.satyam.ad> you wrote:
> 		I am porting Linux on MPC8266 custom board, after
> getting in to Linux the system seems to be struck at a point.

Your question has nothing to do mit MTD and is thus off topic here.

Further, you posted the same question to several other mailing lists,
too, where it was off topic as well.

Please go and read the netiquette.


Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Life. Don't talk to me about life.      - Marvin the Paranoid Android

Re: Porting Linux on MPC8266 custom board

[David Woodhouse]

On Wed, 2005-07-06 at 12:00 +0530, Vikrant_Basotra wrote:
> DISCLAIMER:
> This email (including any attachments) is intended for the sole use of
> the intended recipient/s and may contain material that is CONFIDENTIAL
> AND PRIVATE COMPANY INFORMATION. Any review or reliance by others or
> copying or distribution or forwarding of any or all of the contents in
> this message is STRICTLY PROHIBITED. If you are not the intended
> recipient, please contact the sender by email and delete all copies;
> your cooperation in this regard is appreciated.

Do not _EVER_ post mail with disclaimers like this to my mailing lists.
You are not permitted to use my list for your 'confidential and private
company information', or to make such requirements of my users or
myself. Your mail is publicly archived, and will remain so.

Any further instances of this behaviour will be reported as abuse to
your upstream network provider.

-- 
dwmw2