* [U-Boot-Users] A3000 Linux restart
@ 2004-02-20 14:18 robdlg at att.net
0 siblings, 0 replies; only message in thread
From: robdlg at att.net @ 2004-02-20 14:18 UTC (permalink / raw)
To: u-boot
I'm having a problem with U-Boot 1.0.2, built from the cvs tarball dated 12 Feb.
The target is the Artis SBC-A3000, based on the MPC8245.
U-Boot starts and runs fine, and can boot Linux successfully. However, if I issue
the command "shutdown -r now" under Linux, a problem with the serial port occurs
soon after U-Boot restarts: right after "I2C" is printed, gibberish appears on the
screen, as if the baud rate had suddenly changed.
The processor is evidently still running at this point, as "bootcmd" takes effect
and once the kernel re-initializes the UART, the serial port is back to normal.
This problem occurs only when restarting Linux--it does not happen when restarting
U-Boot or after pressing the reset button on the board. The customized version of
PPCBoot 1.1.5 that was provided with the board does not exhibit this behavior.
Is this an issue with U-Boot, or is there something in the Linux kernel (modified
MontaVista 2.4.19) that could be the cause?
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2004-02-20 14:18 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2004-02-20 14:18 [U-Boot-Users] A3000 Linux restart robdlg at att.net
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox