No ttyS device at I/O port 0xfe004500 for console

[Kumar Gala]

On Jun 13, 2006, at 11:48 AM, Alex Zeffertt wrote:

> Hi list,
>
> I'm trying to boot a linux-2.6.11 kernel on a MPC83xx based board.   
> Through
> some experimentation I have found I need "console=uart,io,0xfe004500"
> in the kernel command line in order to get any output over the serial
> port.
>
> Half way through initialisation the kernel appears to swap from its  
> "early"
> 8250 serial driver to a "full" 8250 serial driver.  At this point  
> it prints
> "No ttyS device at I/O port 0xfe004500 for console" and there is no
> further output.
>
> Does anyone have any idea what I may be doing wrong?
>
> BTW, here's the output that I do get.

Alex, where did you get this 2.6.11 kernel?  The public tree didn't  
have support for 83xx in 2.6.11.  I'd suggest looking at using  
something newer like 2.6.16 and see if you have the same issue.

- k

>
> -------------------/snip--------------------------
> U-Boot 1.1.3 (FSL Development) (Jun 13 2006 - 14:01:25) MPC83XX
>
> Clock configuration:
>    Coherent System Bus:  132 MHz
>    Core:                 264 MHz
>    QE:                   198 MHz
>    Local Bus Controller: 132 MHz
>    Local Bus:             66 MHz
>    DDR:                  264 MHz
>    SEC:                  132 MHz
>    I2C1:                 132 MHz
> CPU: MPC8323E, Rev: 10 at 264 MHz
> Board: Freescale MPC832XEPB
> I2C:   ready
> DRAM:
>     DDR RAM: 128 MB
> FLASH: 16 MB
> In:    serial
> Out:   serial
> Err:   serial
> Net:   FSL GETH0
> Hit any key to stop autoboot:  0
> geth: PHY is Davicom DM9161A (181b8a0)
> FSL GETH0: Full Duplex
> FSL GETH0: Speed 100BT
> FSL GETH0: Link is up
> Using FSL GETH0 device
> TFTP from server 10.0.0.107; our IP address is 10.0.6.65
> Filename 'uImage'.
> Load address: 0x200000
> Loading:  
> #################################################################
>            
> #################################################################
>            
> #################################################################
>           ##########
> done
> Bytes transferred = 1046491 (ff7db hex)
> ## Booting image at 00200000 ...
>     Image Name:   Linux-2.6.11
>     Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>     Data Size:    1046427 Bytes = 1021.9 kB
>     Load Address: 00000000
>     Entry Point:  00000000
>     Verifying Checksum ... OK
>     Uncompressing Kernel Image ... OK
> Linux version 2.6.11 (ajz at zambia) (gcc version 3.4.3) #5 Tue Jun 13  
> 17:36:46 BST 2006
> Built 1 zonelists
> Kernel command line: root=/dev/nfs rw nfsroot=10.0.0.107:/opt/eldk/ 
> ppc_6xx ip=10.0.6.65:10.0.0.107:10.0.0.1:255.255.0.0:eth0:off  
> console=uart,io,0xfe004500
> IPIC (128 IRQ sources, 8 External IRQs) at fe000700
> QE IC (64 IRQ sources) at fe100080
> PID hash table entries: 1024 (order: 10, 16384 bytes)
> Early serial console at I/O port 0xfe004500 (options '134')
> Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
> Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Memory: 127488k available (1724k kernel code, 432k data, 100k init,  
> 0k highmem)
> Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
> NET: Registered protocol family 16
> SCSI subsystem initialized
> JFFS2 version 2.2. (C) 2001-2003 Red Hat, Inc.
> Generic RTC Driver v1.07
> Serial: 8250/16550 driver $Revision: 1.90 $ 2 ports, IRQ sharing  
> disabled
> io scheduler noop registered
> io scheduler anticipatory registered
> io scheduler deadline registered
> io scheduler cfq registered
> RAMDISK driver initialized: 16 RAM disks of 32768K size 1024 blocksize
> loop: loaded (max 8 devices)
> MPC832XE MDS flash device: 1000000 at ff000000 Partition number 5
> MPC832XE PB Flash Map Info: Found 1 x16 devices at 0x0 in 16-bit bank
>   Intel/Sharp Extended Query Table at 0x0031
> Using buffer write method
> cfi_cmdset_0001: Erase suspend on write enabled
> Creating 5 MTD partitions on "MPC832XE PB Flash Map Info":
> 0x00000000-0x00020000 : "HRCW"
> 0x00020000-0x00900000 : "JFFS2"
> 0x00900000-0x00d00000 : "Ramdisk"
> 0x00d00000-0x00f00000 : "Kernel"
> 0x00f00000-0x01000000 : "U-Boot"
> MPC832XE MDS flash device initialized
> i2c /dev entries driver
> NET: Registered protocol family 2
> IP: routing cache hash table of 1024 buckets, 8Kbytes
> TCP established hash table entries: 8192 (order: 4, 65536 bytes)
> TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
> TCP: Hash tables configured (established 8192 bind 8192)
> NET: Registered protocol family 1
> NET: Registered protocol family 17
> No ttyS device at I/O port 0xfe004500 for console
>
> -------------------/snip--------------------------
>
>
>
> TIA,
>
> Alex
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