Re: execve system call question

Hi Kerl, John,

I got the bash prompt

I changed the hardware with some jump wire so that the serial port is located at 0xff000000.

Thank you!
- Sangmoon Kim -

----- Original Message -----
From: "Kerl, John" <redacted>
To: "'Sangmoon Kim'" <redacted>
Sent: Thursday, February 28, 2002 1:51 AM
Subject: RE: execve system call question

I do not know for certain that all I/O must be above 0xc0000000.
However, I do know once I moved all my I/O above 0xc0000000,
my board no longer hung while starting init.

Note that 0xc0000000 and up is used for kernel RAM.  So, don't
put a device at 0xc0000000.  And you may have flash around
0xfff00000; if so, that is another place to avoid.

I would strongly suggest moving your serial port to, say, 0xf0000000.
I do know that your symptoms resemble the symptoms that I saw,
and that at least two other people saw.

Can you try it out?

-----Original Message-----
From: Sangmoon Kim [mailto:dogoil@etinsys.com]
Sent: Tuesday, February 26, 2002 6:48 PM
To: linuxppc-embedded@lists.linuxppc.org; Kerl, John
Subject: Re: execve system call question



Hi Kerl, John

quoted

I found on this mailing list that the IMMR must be located
*above* 0xc0000000.  For example, 0xf0000000.

The MPC755 doesn't have IMMR.
If it means all the I/O should be located above 0xf0000000 please let me
know.
My board has a serial port at 0x78000000.

Thank you!

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