[Scott Coulter]

Check your UART  interrupt setup

 






___________________________________________________________________ 

  Scott N. Coulter 
  Senior Software Engineer 
  
  Cyclone Microsystems          
  370 James Street              Phone:  203.786.5536 ext. 118 
  New Haven, CT 06513-3051      Email:  scott.coulter at cyclone.com 
  U.S.A.                        Web:    http://www.cyclone.com 
___________________________________________________________________ 

________________________________

From: linuxppc-embedded-bounces+scott.coulter=cyclone.com at ozlabs.org
[mailto:linuxppc-embedded-bounces+scott.coulter=cyclone.com at ozlabs.org]
On Behalf Of Mead, Joseph
Sent: Friday, April 27, 2007 3:16 PM
To: linuxppc-embedded at ozlabs.org
Subject: 

 

Hi, 

I'm trying to use initramfs on an ML403 system but don't understand why
I can't see any console output after the line: 

[    1.034361] Freeing unused kernel memory: 1172k init  

 

my filesystem is built from the following: 

dir /dev 755 0 0 
nod /dev/console 644 0 0 c 5 1 
dir /proc 755 0 0 
dir /sys 755 0 0 
file /init usr/busybox 755 0 0 

 

Busybox was built statically, with init functionality so I think I can
just rename it to init and it should run the init process.   It seems to
find /dev/console because if I delete that node I get an error message
that it can't find /dev/console.   Also I think it is finding the
busybox init because I don't get a kernel panic like I do when I don't
include it.

Any help would be great. 

Thanks,
Joe 

 

Kernel boot-up messages. 

loaded at:     00400000 005E613C                                
board data at: 005E4124 005E413C                                
relocated to:  004050D0 004050E8                                
zimage at:     004057E9 005E3869                                
avail ram:     005E7000 04000000                                

Linux/PPC load: console=ttyS0,9600                                  
Uncompressing Linux...done.                           
Now booting the kernel                      
[    0.000000] Linux version 2.6.17.1 (root at ansto1) (gcc version 3.4.5)
#29 Thu Apr 27 11:13:26 EDT 2007                        

[    0.000000] Xilinx ML403 Reference System (Virtex-4 FX)

[    0.000000] Built 1 zonelists                                
[    0.000000] Kernel command line: console=ttyS0,9600

[    0.000000] Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFE000


[    0.000000] PID hash table entries: 512 (order: 9, 2048 bytes)


[    0.000105] Console: colour dummy device 80x25

[    0.000394] Dentry cache hash table entries: 8192 (order: 3, 32768
bytes)


[    0.000887] Inode-cache hash table entries: 4096 (order: 2, 16384
bytes)


[    0.009214] Memory: 61964k available (1292k kernel code, 468k data,
1172k init, 0k highmem)              
[    0.096238] Mount-cache hash table entries: 512

[    0.435539] NET: Registered protocol family 16

[    0.440315] NET: Registered protocol family 2

[    0.480121] IP route cache hash table entries: 512 (order: -1, 2048
bytes)


[    0.480636] TCP established hash table entries: 2048 (order: 1, 8192
bytes)


[    0.480755] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)


[    0.480821] TCP: Hash tables configure

[    0.480843] TCP reno registered                                  
[    0.484696] io scheduler noop registered

[    0.484754] io scheduler anticipatory registered (default)


[    0.484799] io scheduler deadline registered

[    0.484890] io scheduler cfq registered

[    0.510230] Serial: 8250/16550 driver $Revision: 1.90 $ 1 ports, IRQ
sharing disabled        
[    0.511764] serial8250.0: ttyS0 at MMIO 0x40401003 (irq = 9) is a
16550A


[    0.924578] RAMDISK driver initialized: 16 RAM disks of 65536K size
1024 blocksize     
[    0.948301] tun: Universal TUN                                
[    0.963483] tun: (C) 1999-2004 Max Krasnyansky <maxk at qualcomm.com>


[    0.982713] mice: PS/2 mouse device common for all mice

[    0.998445] TCP bic registered                                 
[    1.007702] NET: Registered protocol family 1

[    1.020827] NET: Registered protocol family 17

[    1.034361] Freeing unused kernel memory: 1172k init  

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