[U-Boot-Users] No serial output from mips/au1550
I'm using BDI2000 to debug my version of u-boot, which is still under development. I can step through the code via telnet with bdi, but I'm not seeing any output on serial port when it's supposed to be writing stuff out. The only time I see anything on the serial console is when I reset the target, before running anything. It spits put some garbage.
Within board_init_f(), both init_baudrate and serial_init seem to be running fine. Has anybody experienced something similar to this? If so, what am I missing to make it work?
TIA!
I have x86 host and PPC440E target. I tried to step through code, but looks like my GDB version is wrong. Do you have any good HOWTO for such a setup with BDI2000 (it' 1st time I am using it)?
Thanks,
Leonid.
-----Original Message----- From: u-boot-users-bounces@lists.sourceforge.net [mailto:u-boot-users-bounces@lists.sourceforge.net] On Behalf Of mitsy Sent: Wednesday, July 19, 2006 12:43 PM To: u-boot-users@lists.sourceforge.net Subject: [U-Boot-Users] No serial output from mips/au1550
I'm using BDI2000 to debug my version of u-boot, which is still under development. I can step through the code via telnet with bdi, but I'm not seeing any output on serial port when it's supposed to be writing stuff out. The only time I see anything on the serial console is when I reset the target, before running anything. It spits put some garbage.
Within board_init_f(), both init_baudrate and serial_init seem to be running fine. Has anybody experienced something similar to this? If so, what am I missing to make it work?
TIA!
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In message FAB00A8DC59FAB42B13C2B3B0F6877010EFD30C8@ehost011-3.exch011.intermedia.net you wrote:
I have x86 host and PPC440E target. I tried to step through code, but
Don't expect any real help. You are violating basic netiquette rules.
Your subject says "No serial output from mips/au1550", and now you claim this is a 440E PowerPC system.
Now what exactly is your question ?!?
looks like my GDB version is wrong. Do you have any good HOWTO for such
Try a known to be working toolchain, for example the ELDK?
a setup with BDI2000 (it' 1st time I am using it)?
Try reading the manual (both the BDI2000's and the DULG) ?
Best regards,
Wolfgang Denk
On 7/19/06, Wolfgang Denk wd@denx.de wrote:
In message FAB00A8DC59FAB42B13C2B3B0F6877010EFD30C8@ehost011-3.exch011.intermedia.net you wrote:
I have x86 host and PPC440E target. I tried to step through code, but
Don't expect any real help. You are violating basic netiquette rules.
Your subject says "No serial output from mips/au1550", and now you claim this is a 440E PowerPC system.
Whoa - the person who said he had a PPC is not the original poster, he just hijacked someone else's thread.
To the original poster, in addition to the other suggestions, check the values in the (IIRC) sys_pinfunc register. Some of the serial ports can be switched to gpio. You might also check the clocking setup (cpupll, auxpll, clock divisors, etc) if you changed it from the defaults.
participants (4)
-
Andrew Dyer -
Leonid -
mitsy -
Wolfgang Denk