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Email Archive: u-boot-users (read-only)

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[U-Boot-Users] Watchdog timer reset

From: Daniel Ann <ktdann@gm...> - 2005-05-11 21:51

Hey folks,

Just wondering, does u-boot support periodical reset of watchdog timer
? If not, I suppose I have to disable the watchdog when I enter uboot
in interactive mode, and probably enable it when I exit u-boot.

How does people normally do this ?

Just out of curiosity, (assuming u-boot does not do something like
above), can we do something similar to below code?

-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D
signal(SIGALRM, runme);

function runme(void) {
  printf("hi\n");
  alarm(10);
}
-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D

Cheers,


--=20
Daniel

Re: [U-Boot-Users] Watchdog timer reset

From: Wolfgang Denk <wd@de...> - 2005-05-11 22:24

In message <9b7ca657050509040572e02726@...> you wrote:
> 
> Just wondering, does u-boot support periodical reset of watchdog timer

Yes, of course it does.

> ? If not, I suppose I have to disable the watchdog when I enter uboot
> in interactive mode, and probably enable it when I exit u-boot.

If your watchdog i worth it's money it comes up enabled after  reset,
and  you can just disable it once and forever. A watchdog that can be
switched of is not worth to be called by that name.

> How does people normally do this ?

Have a look at the code.

> Just out of curiosity, (assuming u-boot does not do something like
> above), can we do something similar to below code?
> 
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=
> signal(SIGALRM, runme);

No, we cannot. U-boot is strictly single-tasking and has no notion of
signals and the like. Also, your code makes no sense to me.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
I will also, for an appropriate fee, certify that  your  keyboard  is
object-oriented,  and  that  the bits on your hard disk are template-
compatible.            - Jeffrey S. Haemer in <411akr$3ga@...>

Re: [U-Boot-Users] memory probe

From: Wolfgang Denk <wd@de...> - 2005-05-11 19:14

In message <aa56107905050919099b9b06b@...> you wrote:
> 
> We are  planning to use uboot on our system and wanted to know if
> u-boot can probe the memory installed on the system automatically and
> pass the correct mem size to linux kernel  ?

Yes, it can. Actually this is the default behaviour.

Ummm... why didn't you have a look at the mailing list arcive instead
of posting?

> Way I could understand it was that the mem size and offset had to be
> compile time #define'ed ..

Wrong.

> what if we want same image to work on 2 different memory configuration
> hardware ?

Just do it. It is up to you how you implement support for your board.

> how does the memory probe work on PC etc ? bootloaders use BIOS Calls ?

BIOS? That's a different world. Wrong list.

> how can I do this on my ixdp425 plattform ?

Have a look at common/memsize.c and how it's used on other boards.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
I mean, I . . . think to understand you, I just don't know  what  you
are saying ...                        - Terry Pratchett, _Soul Music_

Re: [U-Boot-Users] memory probe

From: Wolfgang Denk <wd@de...> - 2005-05-11 20:56

In message <1115836301.25819.7.camel@...> you wrote:
> 
> We had such board. One with 32MB and other with 64MB of SDRAM.
> We used DIP switches, which were read early in a U-Boot, in
> memsetup.S. On the position of this DIP switch we then decided
> which path in the mesetup.S to take.
> Then, in out dram_init function for our board, we again read the
> DIP switch and decide what to report as DRAM size.

No need to do this.  If  implemented  correctly,  U-Boot  will  auto-
matically  find  out  how  big  your  RAM.  This is what the RAM size
detection code in common/memsize.c was made for. Just use it.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
Nobody trips over mountains. It is the small pebble that  causes  you
to  stumble.  Pass all the pebbles in your path and you will find you
have crossed the mountain.

[U-Boot-Users] memory probe

From: Sumit Chauhan <sumitchauhan79@gm...> - 2005-05-11 18:15

Hi,

We are  planning to use uboot on our system and wanted to know if
u-boot can probe the memory installed on the system automatically and
pass the correct mem size to linux kernel  ?

Way I could understand it was that the mem size and offset had to be
compile time #define'ed ..

what if we want same image to work on 2 different memory configuration
hardware ?

how does the memory probe work on PC etc ? bootloaders use BIOS Calls ?
how can I do this on my ixdp425 plattform ?

Cheers,
Sumit

Re: [U-Boot-Users] memory probe

From: Jon Loeliger <jdl@fr...> - 2005-05-11 18:38

On Mon, 2005-05-09 at 21:09, Sumit Chauhan wrote:
> Hi,
> 
> We are  planning to use uboot on our system and wanted to know if
> u-boot can probe the memory installed on the system automatically and
> pass the correct mem size to linux kernel  ?

Did you read any of the code for your board?
BTW, what is your board?

Chances are that it will determine the correct size
of your memory dynamically.

> Way I could understand it was that the mem size and offset had to be
> compile time #define'ed ..

Maybe.  Maybe not.

> what if we want same image to work on 2 different memory configuration
> hardware ?

It might work.  What does the code say?

> how does the memory probe work on PC etc ?

No idea.

> bootloaders use BIOS Calls ?
> how can I do this on my ixdp425 plattform ?

Um, there might be some confusion going on here...
What are you wanting to use U-Boot for?

jdl

Re: [U-Boot-Users] memory probe

From: Matej Kupljen <matej.kupljen@ul...> - 2005-05-11 18:40

Hi

> what if we want same image to work on 2 different memory configuration
> hardware ?

We had such board. One with 32MB and other with 64MB of SDRAM.
We used DIP switches, which were read early in a U-Boot, in
memsetup.S. On the position of this DIP switch we then decided
which path in the mesetup.S to take.
Then, in out dram_init function for our board, we again read the
DIP switch and decide what to report as DRAM size.

BR,
Matej

Re: [U-Boot-Users] EP852 support

From: Wolfgang Denk <wd@de...> - 2005-05-11 07:52

In message <428192DC.8060702@...> you wrote:
> 
> Does anybody know whether U-boot supports EP852 board from Embedded 
> Planet? Their website sort of mentiones that and offers to buy it for 

No such support is available in the public source tree.

> $900+. I'd assume they submitted their patches into the main tree, but I 
> can't find anything in the CVS.

Neither can I :-(

And I didn't receive any patches either.

> Can someone enlighten me on that before I start demanding stuff from them?

Ask EP, please.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
Knowledge, sir, should be free to all!
	-- Harry Mudd, "I, Mudd", stardate 4513.3

RE: [U-Boot-Users] EP852 support

From: Steven Blakeslee <BlakesleeS@em...> - 2005-05-11 12:56

>=20
> No such support is available in the public source tree.
>=20
> > $900+. I'd assume they submitted their patches into the=20
> main tree, but=20
> > I can't find anything in the CVS.
>=20
> Neither can I :-(

The sales people offer things like this on the web site but we don't
actually do the port until someone pays.  We have not done an EP852 yet.


>=20
> And I didn't receive any patches either.
>=20
> > Can someone enlighten me on that before I start demanding=20
> stuff from them?
>=20
> Ask EP, please.
>=20

After we do one it will be submitted as long as it is not hacky.  Some
times it is a rush job that would never be accepted.

Re: [U-Boot-Users] EP852 support

From: Wolfgang Denk <wd@de...> - 2005-05-11 13:41

In message <1628E43D99629C46988BE46087A3FBB9247248@...> you wrote:
> 
> The sales people offer things like this on the web site but we don't
> actually do the port until someone pays.  We have not done an EP852 yet.

Grrrrghhh... False advertising!!! Shame on you!!!!


> After we do one it will be submitted as long as it is not hacky.  Some
> times it is a rush job that would never be accepted.

The GPL still applies, i. e you have  to  ship  ALL  systems  with  a
*written*  *offer*  to  give  any  third party a complete copy of the
source code.

Not the written offer part.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
The ultimate barrier is one's viewpoint.
                        - Terry Pratchett, _The Dark Side of the Sun_

Re: [U-Boot-Users] EP852 support

From: Vladimir A. Gurevich <vag@pa...> - 2005-05-11 14:08

Hello Steven,

Steven Blakeslee wrote:

>The sales people offer things like this on the web site but we don't
>actually do the port until someone pays.  We have not done an EP852 yet.
>  
>
OK, that explains. :)

Looks like I just have to do it myself.

Thanks,
Vladimir

RE: [U-Boot-Users] EP852 support

From: Steven Blakeslee <BlakesleeS@em...> - 2005-05-11 14:56

> >=20
> > The sales people offer things like this on the web site but=20
> we don't=20
> > actually do the port until someone pays.  We have not done=20
> an EP852 yet.
>=20
> Grrrrghhh... False advertising!!! Shame on you!!!!

I'm innocent, that's the sales stuff.


>=20
>=20
> > After we do one it will be submitted as long as it is not=20
> hacky.  Some=20
> > times it is a rush job that would never be accepted.
>=20
> The GPL still applies, i. e you have  to  ship  ALL  systems  with  a
> *written*  *offer*  to  give  any  third party a complete=20
> copy of the source code.
>=20

We are going to follow GPL to the letter.  Of course this will be when
we actually do one.

Re: [U-Boot-Users] Compiling u-boot for omap5912osk

From: Wolfgang Denk <wd@de...> - 2005-05-11 13:55

In message <w7br7h51pu.fsf@...> you wrote:
> I've downloaded u-boot 1.1.2 from sourceforge and configured it for
> omap5912osk.  When I try a "make all" I get the following error:
> 
> .../cpu/arm926ejs/start.S:391: Error: undefined symbol CFG_GBL_DATA_SIZE used as an immediate value

Works fine for me:

-> ./MAKEALL omap5912osk
Configuring for omap5912osk board...
flash.c:239:37: warning: unknown escape sequence '\I'
flash.c:246:37: warning: unknown escape sequence '\M'
   text    data     bss     dec     hex filename
  87203    3440   18384  109027   1a9e3 u-boot


[Just fixed those two warnings, too.]

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
There's no honorable way to kill, no gentle way to destroy.  There is
nothing good in war.  Except its ending.
	-- Abraham Lincoln, "The Savage Curtain", stardate 5906.5

[U-Boot-Users] Compiling u-boot for omap5912osk

From: Stephen Johnson <steve@re...> - 2005-05-11 13:31

I've downloaded u-boot 1.1.2 from sourceforge and configured it for
omap5912osk.  When I try a "make all" I get the following error:

.../cpu/arm926ejs/start.S:391: Error: undefined symbol CFG_GBL_DATA_SIZE used as an immediate value

A quick look implies that I need to have CONFIG_OMAP1610 defined
somewhere, but I'm not sure where it should be.

Any help would be appreciated.

Thanks,
                Steve

Re: [U-Boot-Users] EP852 support

From: <richard@uc...> - 2005-05-11 12:50

> Hello,
>=20
> Does anybody know whether U-boot supports EP852 board from Embedded=20
> Planet? Their website sort of mentiones that and offers to buy it for=20
> $900+. I'd assume they submitted their patches into the main tree, but I=
=20
> can't find anything in the CVS.
>=20
> Can someone enlighten me on that before I start demanding stuff from them=
?
>=20

http://www.uclinux.net/forum/viewtopic.php?t=3D28

(o;

best regards
rick

[U-Boot-Users] [ARM-AT91RM9200] Should D-Cache be OFF for booting Linux-ARM?

From: Paugam Luc <luc.paugam@th...> - 2005-05-11 08:23

Dear All,

My U-Boot dev. Env: eldk-arm-linux-x86 v3.1.1, ARCH=3Darm, =
CPU=3DAT91RM9200,
BOARD=3D"custom"

I would like to know if D-Cache has to be set OFF or ON in order to boot
Linux?

Because at first I enable the D-Cache into start.S, but the Linux kernel
source codes (arch/arm/kernel/head-armv.S) require that D-Cache must be
OFF by the boot loader.

What do U-Boot developers while booting Linux-arm from U-Boot?

---------------------------------------------------------------------

Here is my cp15 initialization, coded into start.S

CacheInit:
    /*
     * Read/modify/write CP15 control register
     * disable MMU, enable I-Cache, select Asychronous Clocking Mode
     */

    /* read cp15 control register (cp15 r1) in r0         */
    mrc     p15, 0, r0, c1, c0, 0
    /* clear bits 13, 9:8 (--V- --RS)                     */
    bic     r0, r0, #0x00002300
    /* clear bits 7, 2:0  (B--- -CAM)                     */
    bic     r0, r0, #0x00000087
    /* set bit  1 (A) Alignment Fault Enable              */
    orr     r0, r0, #0x00000002

#if 0
    /*----------------------------------------------------*/
    /*-- BEWARE: Linux Kernel requires D-Cache OFF      --*/
    /*----------------------------------------------------*/

    /* set bit  2 (C) D-Cache ON                          */
    orr     r0, r0, #0x00000004
#endif

    /* set bit 12 (I) I-Cache ON                          */
    orr     r0, r0, #0x00001000
    /* set bits 31:30 (iA, nF) Asynchronous Clocking mode */
    orr     r0, r0, #0xC0000000
    /* write r0 in cp15 control register (cp15 r1)        */
    mcr     p15, 0, r0, c1, c0, 0

---------------------------------------------------------------------

Many thanks for your collaboration.

Regards - Luc

Re: [U-Boot-Users] [ARM-AT91RM9200] Should D-Cache be OFF for booting Linux-ARM?

From: Anders Larsen <alarsen@re...> - 2005-05-11 10:21

"Paugam Luc" <luc.paugam@...> schreibt:
>My U-Boot dev. Env: eldk-arm-linux-x86 v3.1.1, ARCH=arm, CPU=AT91RM9200,
>BOARD="custom"
>
>I would like to know if D-Cache has to be set OFF or ON in order to boot
>Linux?

OFF (see http://www.arm.linux.org/developer/booting.php)
>
>Because at first I enable the D-Cache into start.S, but the Linux kernel
>source codes (arch/arm/kernel/head-armv.S) require that D-Cache must be
>OFF by the boot loader.

Then you already knew the answer to your question.
>
>What do U-Boot developers while booting Linux-arm from U-Boot?

Follow the guidelines from rmk, of course.
>
>Here is my cp15 initialization, coded into start.S

Err, why don't you use the already present cpu/arm920t/start.S
and cpu/arm920t/at91rm9200/lowlevel_init.S ?

>    /* set bits 31:30 (iA, nF) Asynchronous Clocking mode */
>    orr     r0, r0, #0xC0000000

Don't touch the clocking mode until /after/ you have set up
the PLLs and given them time to stabilize!

Cheers
 Anders

Re: [U-Boot-Users] (no subject)

From: Wolfgang Denk <wd@de...> - 2005-05-11 07:57

In message <200505111412.AA28574024@...> you wrote:
> When I fire up the board,the U-boot reports are as follows:
...
> U-Boot 1.1.2 (May 10 2005 - 08:54:34)                                     
> 
> CPU:   MPC5200 v1.2 at 396 MHz                              
>        Bus 132 MHz, IPB 66 MHz, PCI 33 MHz                                          
> Board: Motorola MPC5200 (IceCube)                                 
> I2C:   85 kHz, ready                    
> DRAM:  32 MB            
> FLASH:  0 kB            
^^^^^^^^^^^^^^
Problem here

> **********************************************************
> Is it ok? What's the problem on "FLASH:  0 kB            
> *** Warning - bad CRC, using default environment     "?
> It can not find my flash on board?

Correct. Seems you don't have an IceCube (aka  Lite5200)  board.  You
will have to port U-Boot to your hartware.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
... bacteriological warfare ... hard to believe we were once foolish
enough to play around with that.
	-- McCoy, "The Omega Glory", stardate unknown

Re: [U-Boot-Users] (no subject)

From: Wolfgang Denk <wd@de...> - 2005-05-11 08:58

In message <200505111617.AA27328618@...> you wrote:
> Yes! My board has the different flash from icecube.Pls tell me which file I have to verify to make U-boot find my flash?

The flash driver in your board directory.

Ummm... you did rad the README, didn't you? Maybe you want to read it
again.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
"He was so narrow minded he could see through  a  keyhole  with  both
eyes ..."

Re: [U-Boot-Users] how can I run linux without tftp

From: Wolfgang Denk <wd@de...> - 2005-05-11 07:55

In message <200505111408.AA28377416@...> you wrote:
>
>    I have no ethernet device on my board,so I can only load linux img file via serial port using "loadb" command. But when I downloaded the img successfully and tried to boot the linux , the program stopped as follows:
...
> Kernel command line:                    
...
> VFS: Unable to mount root fs via NFS, trying floppy.                                                    
> VFS: Cannot open root device "" or 02:00                                        
> Please append a correct "root=" boot option                                           
> Kernel panic: VFS: Unable to mount root fs on 02:00                                                   

Well, you don't pass any boot arguments to  the  linux  kernel  (like
where  to  find  a  root  filesystem), so your kernel quite naturally
complains that he cannot find the root file system.

Looks perfectly normal to me.


Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
"There was no difference between  the  behavior  of  a  god  and  the
operations of pure chance..."   - Thomas Pynchon, _Gravity's Rainbow_

Re: [U-Boot-Users] how can I run linux without tftp

From: Wolfgang Denk <wd@de...> - 2005-05-11 08:57

In message <200505111615.AA27132010@...> you wrote:
> Thank you for your answer!
> But how can I do next if I don't have ethernet to give kernel the rootfs and want linux run on my target board?

Use a filesystem on some other device, like a  ramdisk  image,  or  a
cramfs  or JFFS2 image in flash, or mount a file system on a harddisk
or compact flash card or on a USB memory stick or ... there are many,
many options. I don't  know  which  options  are  available  on  your
hardware, though.

This has nothing to do with U-Boot.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
There is a multi-legged creature crawling on your shoulder.
	-- Spock, "A Taste of Armageddon", stardate 3193.9

Re: [U-Boot-Users] u-boot config

From: Wolfgang Denk <wd@de...> - 2005-05-11 08:05

In message <loom.20050511T050014-177@...> you wrote:
> 
> We have a IXDP425 based system, if I undnerstand it correctly.
> One needs to hard code the system ram value at compile time itself.

With "ram value" you probably mean the ram size?

Actually this should  be  computed  instead  of  beiong  hard  coded,
although many ARM boards fail to implement this.

> Can some one tell me why dynamic probe of memory like in PC not possible ?  

It is possible and standard on most boards. Normally common/memsize.c
is used for this purpose.

> are there any registers one can read to find this out ?? 
> we would like to have dynamically probed memory configured by u-boot.

Feel free to implement it for your board.

> Also, Can some one please explain / point to me some page / doc which describes 
> what makes up the u-boot config area ?

I'm not sure what you mean by "config area". We never used this  term
before in U-Boot.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
Generally speaking, there are other ways to accomplish whatever it is
that you think you need ...                               - Doug Gwyn

Re: [U-Boot-Users] loadb

From: Wolfgang Denk <wd@de...> - 2005-05-11 07:47

In message <200505111024.AA25624682@...> you wrote:
>
>   How can I assign path to my img file in the HyperTerminal when I try to download img using loadb form serial port?

Use kermit instead of HT.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...
He had been eight years upon a project for extracting sunbeams out of
cucumbers, which were to be put in vials hermetically sealed, and let
out to warm the air in raw inclement summers.        - Jonathan Swift
              _Gulliver's Travels_ ``A Voyage to Laputa, etc.'' ch. 5

[U-Boot-Users] (no subject)

From: zhonglei <zhonglei@RC...> - 2005-05-11 06:10

When I fire up the board,the U-boot reports are as follows:
********************************************************
U-Boot 1.1.2 (May 10 2005 - 08:54:34)                                     

CPU:   MPC5200 v1.2 at 396 MHz                              
       Bus 132 MHz, IPB 66 MHz, PCI 33 MHz                                          
Board: Motorola MPC5200 (IceCube)                                 
I2C:   85 kHz, ready                    
DRAM:  32 MB            
FLASH:  0 kB            
*** Warning - bad CRC, using default environment                                                

PCI:   Bus Dev VenId DevId Class Int                                    
        00  1a  1057  5803  0680  00                                    
In:    serial             
Out:   serial             
Err:   serial             
Net:   FEC ETHERNET                   
IDE:   Bus 0: ............................................................** Tim                                                                                
eout **       

Type "run flash_nfs" to mount root filesystem over NFS                                                      

Hit any key to stop autoboot:  0                                
=>  
**********************************************************
Is it ok? What's the problem on "FLASH:  0 kB            
*** Warning - bad CRC, using default environment     "?
It can not find my flash on board?

Best Regards
zhonglei

[U-Boot-Users] how can I run linux without tftp

From: zhonglei <zhonglei@RC...> - 2005-05-11 06:07

hi
   I have no ethernet device on my board,so I can only load linux img file via serial port using "loadb" command. But when I downloaded the img successfully and tried to boot the linux , the program stopped as follows:
**********************************************************************
=> loadb 00100000                 
## Ready for binary (kermit) download to 0x00100000 at 115200 bps...                                                                    
## Total Size      = 0x000cb02a = 831530 Bytes                                              
## Start Addr      = 0x00100000                               
=> bootm        
## Booting image at 00100000 ...                                
   Image Name:   Linux-2.4.25                             
   Image Type:   PowerPC Linux Kernel Image (gz                                              
   Data Size:    831466 Bytes = 812 kB                                      
   Load Address: 00000000                         
   Entry Point:  00000000                         
   Verifying Checksum ... OK                            
   Uncompressing Kernel Image ... OK                                    
Memory BAT mapping: BAT2=32Mb, BAT3=0Mb, residual: 0Mb                                                      
Linux version 2.4.25 (root@...) (gcc version 3.2.2                                                                               
20030217 (Yellow Dog Linux 3.0 3.2.2-2a_1)) #2 Tue May 10 14:19:41 CST 2005                                                                           
On node 0 totalpages: 8192                          
zone(0): 8192 pages.                    
zone(1): 0 pages.                 
zone(2): 0 pages.                 
Kernel command line:                    
Calibrating delay loop... 263.78 BogoMIPS                                         
Memory: 29876k available (1456k kernel code, 460k data, 76k init, 0k highmem)                                                                             
Dentry cache hash table entries: 4096 (order: 3, 32768 bytes)                                                             
Inode cache hash table entries: 2048 (order: 2, 16384 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: 8192 (order: 3, 32768 bytes)                                                           
POSIX conformance testing by UNIFIX                                   
PCI: Probing PCI hardware                         
PCI: Cannot allocate resource region 0 of device 00:1a.0                                                        
Linux NET4.0 for                
Based upon Swansea University Computer Society NET3.039                                                       
Initializing RT netlink socket                              
Starting kswapd               
Journalled Block Device driver loaded                                     
JFFS2 version 2.2. (C) 2001-2003 Red Hat, Inc.                                              
pty: 256 Unix98 ptys configured                               
ttyS0 on PSC1             
ttyS1 on PSC2             
ttyS2 on PSC3             
RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize                                                                      
loop: loaded (max 8 devices)                            
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4                                                           
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx                                                                           
Port Config is: 0x910                   
ipb=66MHz, set clock period to 15                                 
GPIO config: 91050004                     
ATA invalid: 00800000                     
ATA hostcnf: 03000000                     
ATA pio1   : 100a0a00                     
ATA pio2   : 02040600                     
XLB Arb cnf: 0000a366                     
mpc5xxx_ide: Setting up IDE interface ide0...                                             
ATA DMA task: 5               
Probing IDE interface ide0...                             
ide0: Wait for ready failed before probe !                                          
Probe at base[0x55](0x00000055) past the end of the map(0x00000000)                                                                   
Probe at base[0x55](0x00000055) past the end of the map(0x00000000)                                                                   
CFI: Found no Icecube Bank 0 device at location zero                                                    
Icecube: No supported flash c                            
NET4: Linux TCP/IP 1.0 for NET4.0                                 
eth0: Phy @ 0x0, type GENERIC (0x007f007f)                                          
IP Protocols: ICMP, UDP, TCP, IGMP                                  
IP: routing cache hash table of 512 buckets, 4Kbytes                                                    
TCP: Hash tables configured (established 2048 bind 4096)                                                        
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.                                                   
Root-NFS: No NFS server available, giving up.                                             
VFS: Unable to mount root fs via NFS, trying floppy.                                                    
VFS: Cannot open root device "" or 02:00                                        
Please append a correct "root=" boot option                                           
Kernel panic: VFS: Unable to mount root fs on 02:00                                                   
 <0>Rebooting in 180 seconds..                              
*********************************************************************

Please give me a help! Thanks a lot!
Best Regards
zhonglei

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