Getting junk character in Serial Ouput.

sivakumar sivakumar.subramani at wipro.com
Thu Dec 26 21:49:01 CET 2002


I have added some debug message which corrupted the values in some
resgister. Now it is working fine.

Thanks,
Siva

Serial Output:
--------------
LinuxBIOS-1.0.0 Thu Dec 26 18:54:44 IST 2002 starting...
Ram1
Ram2
Ram3
Ram Enable 1
Ram Enable 2
Ram Enable 3
Ram Enable 4
Ram Enable 5
12345678123456781234567812345678--- SDRAM TEST PASSED
Ram4
Ram5
Ram6
Copying LinuxBIOS to ram.
LinuxBIOS-1.0.0 Thu Dec 26 18:54:44 IST 2002 booting...
Finding PCI configuration type.
PCI: Using configuration type 1
Scanning PCI bus...PCI: pci_scan_bus for bus 0
PCI: 00:00.0 [8086/1a30]
PCI: 00:01.0 [8086/1a31]
PCI: 00:1e.0 [8086/244e]
PCI: 00:1f.0 [8086/2440]
PCI: 00:1f.1 [8086/244b]
PCI: 00:1f.2 [8086/2442]
PCI: 00:1f.3 [8086/2443]
PCI: 00:1f.4 [8086/2444]
PCI: 00:1f.5 [8086/2445]
PCI: 00:1f.6 [8086/2446]
PCI: pci_scan_bus for bus 1
PCI: 01:00.0 [10de/002d]
PCI: pci_scan_bus returning with max=01
PCI: pci_scan_bus for bus 2
PCI: 02:05.0 [10ec/8139]
PCI: pci_scan_bus returning with max=02
PCI: pci_scan_bus returning with max=02
done
totalmem is 128
totalram: 128M
Initializing CPU #0
Max cpuid index    : 2
Vendor ID          : GenuineIntel
Processor Type     : 0x00
Processor Family   : 0x0f
Processor Model    : 0x01
Processor Mask     : 0x00
Processor Stepping : 0x02
Feature flags      : 0x3febfbff

Cache/TLB descriptor values: 1 reads required
Desc 0x50 : UNKNOWN
Desc 0x5b : UNKNOWN
Desc 0x66 : UNKNOWN
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x40 : No L2 cache
Desc 0x70 : UNKNOWN
Desc 0x7a : UNKNOWN
Desc 0x00 : null


Configuring L2 cache...CPU signature of f10 so no L2 cache configuration
Enable Cache
done.
Setting up local apic...done.
CPU #0 Initialized
Allocating PCI resources...
ASSIGN RESOURCES, bus 0
PCI: 00:00.0 10 <- [0xe0000000 - 0xefffffff] prefmem
PCI: 00:01.0 1c <- [0x00002000 - 0x00001fff] bus 1 .io
PCI: 00:01.0 24 <- [0xf0000000 - 0xf1ffffff] bus 1 .prefmem
PCI: 00:01.0 20 <- [0xf2000000 - 0xf2ffffff] bus 1 .mem
ASSIGN RESOURCES, bus 1
PCI: 01:00.0 10 <- [0xf2000000 - 0xf2ffffff] mem
PCI: 01:00.0 14 <- [0xf0000000 - 0xf1ffffff] prefmem
PCI: 00:1e.0 1c <- [0x00001000 - 0x00001fff] bus 2 .io
PCI: 00:1e.0 24 <- [0xf3100000 - 0xf30fffff] bus 2 .prefmem
PCI: 00:1e.0 20 <- [0xf3000000 - 0xf30fffff] bus 2 .mem
ASSIGN RESOURCES, bus 2
PCI: 02:05.0 10 <- [0x00001000 - 0x000010ff] io
PCI: 02:05.0 14 <- [0xf3000000 - 0xf30000ff] mem
PCI: 00:1f.1 20 <- [0x00002c00 - 0x00002c0f] io
PCI: 00:1f.2 20 <- [0x000028c0 - 0x000028df] io
PCI: 00:1f.3 20 <- [0x00002c10 - 0x00002c1f] io
PCI: 00:1f.4 20 <- [0x000028e0 - 0x000028ff] io
PCI: 00:1f.5 10 <- [0x00002000 - 0x000020ff] io
PCI: 00:1f.5 14 <- [0x00002880 - 0x000028bf] io
PCI: 00:1f.6 10 <- [0x00002400 - 0x000024ff] io
PCI: 00:1f.6 14 <- [0x00002800 - 0x0000287f] io
Allocating VGA resource
done.
Enabling PCI resourcess...PCI: 00:00.0 cmd <- 06
PCI: 00:01.0 cmd <- 07
PCI: 00:1e.0 cmd <- 07
PCI: 00:1f.0 cmd <- 0f
PCI: 00:1f.1 cmd <- 01
PCI: 00:1f.2 cmd <- 01
PCI: 00:1f.3 cmd <- 01
PCI: 00:1f.4 cmd <- 01
PCI: 00:1f.5 cmd <- 01
PCI: 00:1f.6 cmd <- 01
PCI: 01:00.0 cmd <- 03
PCI: 02:05.0 cmd <- 03
done.
Initializing PCI devices...
PCI devices initialized
intel_mainboard_fixup()
Reset Control Register
port 92
Disable Nmi
enabling smbus
enable pm functions
disabling smi
Disable more pm stuff
Set the subsystem vendor id



On Fri, 2002-12-27 at 00:56, Ronald G. Minnich wrote:
> On Thu, 26 Dec 2002, Stefan Reinauer wrote:
> 
> > Almost looks like the baud rate is changed somewhen after Ram6. What
> > baudrate are you using?
> 
> 
> also on some of these superio if you just reload the baud register, even 
> with the same baudrate, it will send lots of garbage output. 
> 
> It could be that, which is harmless.
> 
> ron
-- 
sivakumar <sivakumar.subramani at wipro.com>
wipro




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