Re: [microblaze-uclinux] No ROM/FLASH Board

[Alejandro Lucero <alucero@xxxxxxxxx>]

Hi Bruno,

I don't know if I have got the point you comment about the memory flash, but 
what I understand is you CAN NOT use it. However, you have mtd actived on 
uCLinux kernel and the boot log shows something is detected and it tries to 
get the root file system from there.

If that explanation is true, you should remove the mtd from the kernel and it 
should mount the romfs built and "linked" with the uClinux kernel image. 

On Friday 10 November 2006 02:12, Bruno Herrera wrote:
> Hello All,
>
> I'm finishing a port of uCLinux to a Celoxica board that I do not have
> direct acess to a Rom/Flash memory. In fact I only have access to it
> thru on CPLD, so I discarded it from may BSP.
>
> Now I'm trying to boot the board but I got this(see below). I have
> googled a lot but could not find any conclusive solution. Do you have
> any sugestions??
>
>
>
>
> Make your choice>Linux version 2.4.32-uc0 (bherrera@linux) (gcc version
> 3.4.1 ( Xilinx EDK 8.1 Build EDK_I.15 290805 )) #25 Thu Nov 9 22:34:34 AMT
> 2006 On node 0 totalpages: 1024
> zone(0): 1024 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> CPU: MICROBLAZE
> Kernel command line:
> Console: xmbserial on UARTLite
> Calibrating delay loop... 24.83 BogoMIPS
> Memory: 4MB = 4MB total
> Memory: 2828KB available (567K code, 646K data, 40K init)
> Dentry cache hash table entries: 512 (order: 0, 4096 bytes)
> Inode cache hash table entries: 512 (order: 0, 4096 bytes)
> Mount cache hash table entries: 512 (order: 0, 4096 bytes)
> Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
> Page-cache hash table entries: 1024 (order: 0, 4096 bytes)
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Microblaze UARTlite serial driver version 1.00
> ttyS0 at 0xffff2000 (irq = 1) is a Microblaze UARTlite
> Starting kswapd
> devfs: v1.12c (20020818) Richard Gooch (rgooch@xxxxxxxxxxxxx)
> devfs: devfs_debug: 0x0
> devfs: boot_options: 0x1
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> uclinux[mtd]: RAM probe address=0xff0be8d0 size=0x71000
> mtd: Giving out device 0 to RAM
> uclinux[mtd]: root filesystem index=0
> *******
> VFS: test name = </dev/root>
> VFS: fs_name = <ext2>
> VFS: fs_name = <romfs>
> VFS: root name <1f:00>
> *******
> VFS: tried fs_name = <ext2> err= -2
> VFS: Cannot open root device "" or 1f:00
> Please append a correct "root=" boot option
> Kernel panic: VFS: Unable to mount root fs on 1f:00
>
>
> -----------------------

-- 
Alejandro Lucero
Director Técnico
+34 665 68 71 68
Valencia (SPAIN)
www.os3sl.com

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