UART Problems booting linux on est8260
LTSS001 at motorola.com
Wed Aug 11 22:51:02 EST 2004
I'm trying to boot linux-2.4.22 on the est8260 board using U-boot-1.1.1, but the serial interface corrupts after this line comes up:
## Booting image at 00400000 ...
Image Name: Linux 2.4.22
Created: 2004-08-10 15:55:04 UTC
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 523580 Bytes = 511.3 kB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
Memory BAT mapping: BAT2=16Mb, BAT3=0Mb, residual: 0Mb
Linux version 2.4.22 (ltss001 at linux) (gcc version 2.95.3 20010315 (release)) #3
Kernel command line: root=/dev/nfs rw nfsroot=192.168.0.1:/tftpboot/192.168.0.2
CPM UART driver version 0.01
I have looked around and found that the next line should say something like
ttyS00 at 0x8000 is a SCC
But all I get is garbage like musical notes and square root signs streaming onto the terminal. I have tried changing the baud rate when this comes up to all the other options but I still don't read anything coherent.
When configuring the kernel I tried just loading the est8260_config, then building without editing the menuconfig, when that didn't work I went to menuconfig > Character devices and fiddled around with various options in there but nothing seems to work.
Any help would be greatly appreciated. Thanks,
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