[U-Boot-Users] start / load addresses for kernel

[U-Boot-Users] start / load addresses for kernel

[Jerry Walden]

Hello:

I received the below advice recently:

>since you are building for a non openbios kernel, you will need
>to change the make file.  The start/ load addresses and all are different

I am trying to get more detail on what needs to change,
I see 2 config options:

1) CONFIG_KERNEL_START_BOOL - is set this to yes
2) CONFIG_KERNEL_START -- what should this be set to - the default is
0xc0000000 seems fine to me

Are there any other options that I am missing?

Below is a log of my attempt to boot the kernel - displayed are the
command line that is getting passed in, and well as the startup parameters -
do these look okay - I made sure that the kernel bd_info struct is the same
as the u-boot struct

****************************************************************************
Script started on Fri Mar 21 14:43:27 2003
Welcome to minicom 1.83.1





U-Boot 0.2.0 (Mar 19 2003 - 12:09:59)
CPU:   IBM PowerPC 405GPr Rev. A at 266.666 MHz (PLB=133, OPB=66, EBC=26
MHz)
           PCI async ext clock used, internal PCI arbiter enabled
           16 kB I-Cache 16 kB D-Cache


Board: ### No HW ID - assuming WALNUT405
I2C:   ready
DRAM:  64 MB
Now running in RAM - U-Boot at: 03fcf000
FLASH: 512 kB

*** Warning - bad CRC, using default environment


PCI:   Bus Dev VenId DevId Class Int
PCI Autoconfig: Memory region: [20000000-27ffffff]
PCI Autoconfig: I/O region: [800000-3ffffff]
PCI Scan: Found Bus 0, Device 0, Function 0
PCI Scan: Found Bus 0, Device 7, Function 0
PCI Autoconfig: BAR 0, Mem, size=0x1000000, address=0x20000000
PCI Autoconfig: BAR 1, I/O, size=0xffffff04, No room in resource
PCI Autoconfig: BAR 2, I/O, size=0x1000000, address=0x1000000
        00  07  1394  0978  0200  1c

In:    serial
Out:   serial
Err:   serial


U-Boot relocated to 03fcf000

IDE:   Bus 0: port = c
OK

 Device 0: Model: SanDisk SDCFB-64 Firm: Vdg 8.16. Ser#: 111913G1602X4714
            Type: Removable Hard Disk
            Capacity: 61.2 MB = 0.0 GB (125440 x 512)

=>
=> imi 0x200000

## Checking Image at 00200000 ...
   Image Name:   Linux-2.4.18_mvl30-walnut
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    298601 Bytes = 291.6 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

=> bootm 0x200000

## Booting image at 00200000 ...

   Image Name:   Linux-2.4.18_mvl30-walnut
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    298601 Bytes = 291.6 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK

## Current stack ends at 0x03F9EBD8 => set upper limit to 0x00800000

## cmdline at 0x007FFF00 ... 0x007FFF20
root=/dev/ram console=ttyS0,9600

memsize     = 0x04000000
flashstart  = 0xFFF80000
flashsize   = 0x00080000
flashoffset = 0x00031000
sramstart   = 0x00000000
sramsize    = 0x00000000
bootflags   = 0x001E8480
procfreq    = 266.666 MHz
plb_busfreq = 133.333 MHz
pci_busfreq = 33.333 MHz
ethaddr     = 00:00:00:00:00:00
IP addr     = 0.0.0.0
baudrate    =   9600 bps
No initrd

## Transferring control to Linux (at address 00000000) ...


Thanks

Jerry Walden

[U-Boot-Users] RE: start / load addresses for initrd

[Jerry Walden]

Once again - I'm making progress on bringing up Linux
on a custom 405GPr board using u-boot.

First - I got my serial console working in Linux.
I did not have to use TLB's or BAT's to map
the memory addresses of the UART to properly initialize it.

I simply commented out the initialization that is done in
/drivers/char/serial.c for the serial console.  The initialization
that I did in u-boot was sufficient.

So now my printk's can be seen and logged.

At this point I am trying to get the ramdisk working.  The
reason I am posting to this list is that I am not sure of the
command line kernel options for initrd and the ram disk.

Yes - I read the FAQ's at the DENX site, as well as initrd.txt
and I still am mystified as to what is happening.  Below is a log
of the boot attempt - any help would be greatly appreciated:

  U-Boot 0.2.0 (Mar 24 2003 - 11:49:36)  CPU:   IBM PowerPC 405GPr Rev. A at
266.666 MHz (PLB=133, OPB=66, EBC=26 MHz)
           PCI async ext clock used, internal PCI arbiter enabled
           16 kB I-Cache 16 kB D-Cache Board: ### No HW ID - assuming
WALNUT405
I2C:   ready
DRAM:  64 MB
Now running in RAM - U-Boot at: 03fcf000
FLASH: 512 kB
*** Warning - bad CRC, using default environment PCI:   Bus Dev VenId DevId
Class Int
PCI Autoconfig: Memory region: [20000000-27ffffff]
PCI Autoconfig: I/O region: [800000-3ffffff]
PCI Scan: Found Bus 0, Device 0, Function 0
PCI Scan: Found Bus 0, Device 7, Function 0
PCI Autoconfig: BAR 0, Mem, size=0x1000000, address=0x20000000
PCI Autoconfig: BAR 1, I/O, size=0xffffff04, No room in resource
PCI Autoconfig: BAR 2, I/O, size=0x1000000, address=0x1000000
       00  07  1394  0978  0200  1c

In:    serial
Out:   serial
Err:   serial U-Boot relocated to 03fcf000
IDE:   Bus 0: port = c
OK     Device 0: Model: SanDisk SDCFB-64 Firm: Vdg 8.16. Ser#:
111913G1602X4714
       Type: Removable Hard Disk
       Capacity: 61.2 MB = 0.0 GB (125440 x 512) => imi 0x100000
## Checking Image at 00100000 ...
   Image Name:   Linux-2.4.18_mvl30-walnut
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    298692 Bytes = 291.7 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

=> imi 0x200000 ## Checking Image at 00200000 ...
   Image Name:   DA Ramdisk Image
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    1509352 Bytes =  1.4 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

=> bootm 0x100000 0x200000 ## Booting image at 00100000 ...
   Image Name:   Linux-2.4.18_mvl30-walnut
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    298692 Bytes = 291.7 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
## Current stack ends at 0x03F9EBD8 => set upper limit to 0x00800000
## cmdline at 0x007FFF00 ... 0x007FFF2F
memsize     = 0x04000000
flashstart  = 0xFFF80000
flashsize   = 0x00080000
flashoffset = 0x00031000
sramstart   = 0x00000000
sramsize    = 0x00000000
bootflags   = 0x001E8480
procfreq    = 266.666 MHz
plb_busfreq = 133.333 MHz
pci_busfreq = 33.333 MHz
ethaddr     = 00:00:00:00:00:00
IP addr     = 0.0.0.0
baudrate    =   9600 bps
 ## Loading RAMDisk Image at 00200000 ...
  Image Name:   DA Ramdisk Image
  Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
  Data Size:    1509352 Bytes =  1.4 MB
  Load Address: 00000000
  Entry Point:  00000000
  Verifying Checksum ... OK

 ## initrd at 0x00200040 ... 0x00370827 (len=1509352=0x1707E8)
   Loading Ramdisk to 03e2d000, end 03f9d7e8 ... OK

 ## Transferring control to Linux (at address 00000000) ...

Linux version 2.4.18_mvl30-walnut (root at hhl) (gcc version 3.2.1 20020930
IBM Sycamore (IBM405GPr) Platform
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/ram console=ttyS0,9600n8 console=tty0
Memory: 62268k available (512k kernel code, 212k data, 32k init, 0k highmem)
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
OCP uart ver 1.2 init complete
Starting kswapd
Disabling the Out Of Memory Killer
Serial driver version 5.05c (2001-07-08) with no serial options enabled
ttyS00 at 0x0000 (irq = 0) is a 16550A
ttyS01 at 0x0000 (irq = 1) is a 16550A
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Tracer: Initialization complete
RAMDISK: Compressed image found at block 0
RAMDISK: incomplete write (ramdisk too small?) (-28 != 32768)






























































































































PowerPC Linux Kernel Image (gzip compressed
Jerry Walden

[U-Boot-Users] RE: start / load addresses for initrd

[Wolfgang Denk]

In message <EGEGIJHKDKJGAJMGIDPNCEBNCKAA.jwalden@digitalatlantic.com> you wrote:
> 
> Once again - I'm making progress on bringing up Linux
> on a custom 405GPr board using u-boot.

...which is not exactly the topic of this list.

> First - I got my serial console working in Linux.
> I did not have to use TLB's or BAT's to map
> the memory addresses of the UART to properly initialize it.
> 
> I simply commented out the initialization that is done in
> /drivers/char/serial.c for the serial console.  The initialization
> that I did in u-boot was sufficient.

I don't think that was a good idea. Basicly it means that you did not
understand what's going on,  which  is  not  a  good  base  to  build
embedded systems on.

> At this point I am trying to get the ramdisk working.  The
> reason I am posting to this list is that I am not sure of the
> command line kernel options for initrd and the ram disk.
...
> Kernel command line: root=/dev/ram console=ttyS0,9600n8 console=tty0

Command line options look ok to me (at least for a  first  test;  you
might want to add "rw" later).

...
> RAMDISK: Compressed image found at block 0
> RAMDISK: incomplete write (ramdisk too small?) (-28 != 32768)
...

Where did you get this ramdisk image from? What makes you think it is
working at all?

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
Earth -- mother of the most beautiful women in the universe.
	-- Apollo, "Who Mourns for Adonais?" stardate 3468.1

[U-Boot-Users] RE: start / load addresses for initrd

[Jerry Walden]

>I don't think that was a good idea. Basicly it means that you did not
>understand what's going on,  which  is  not  a  good  base  to  build
>embedded systems on.

Okay - now you got me going... (why is it that every time I have a
communique with you I feel like I talking to a professor is college...)

I discovered that the UART divisor I selected for u-boot is different than
the uart divisor that the function serial_console_setup in
/drivers/char/serial.c.

The kernel I am working with was for the Walnut board, and my board is a
custom
board.  The formula for the uart divisor = serial_input_clock / (16 * 9600).
So my board uses the cpu clock and divides it down to come up with the
serial
input clock, and the Walnut board uses an external clock input.


Jerry Walden

-----Original Message-----
From: u-boot-users-admin@lists.sourceforge.net
[mailto:u-boot-users-admin at lists.sourceforge.net]On Behalf Of Wolfgang
Denk
Sent: Tuesday, March 25, 2003 1:18 PM
To: jwalden at digitalatlantic.com
Cc: U-Boot-Users at Lists. Sourceforge. Net
Subject: Re: [U-Boot-Users] RE: start / load addresses for initrd


In message <EGEGIJHKDKJGAJMGIDPNCEBNCKAA.jwalden@digitalatlantic.com> you
wrote:
>
> Once again - I'm making progress on bringing up Linux
> on a custom 405GPr board using u-boot.

...which is not exactly the topic of this list.

> First - I got my serial console working in Linux.
> I did not have to use TLB's or BAT's to map
> the memory addresses of the UART to properly initialize it.
>
> I simply commented out the initialization that is done in
> /drivers/char/serial.c for the serial console.  The initialization
> that I did in u-boot was sufficient.

I don't think that was a good idea. Basicly it means that you did not
understand what's going on,  which  is  not  a  good  base  to  build
embedded systems on.

> At this point I am trying to get the ramdisk working.  The
> reason I am posting to this list is that I am not sure of the
> command line kernel options for initrd and the ram disk.
...
> Kernel command line: root=/dev/ram console=ttyS0,9600n8 console=tty0

Command line options look ok to me (at least for a  first  test;  you
might want to add "rw" later).

...
> RAMDISK: Compressed image found at block 0
> RAMDISK: incomplete write (ramdisk too small?) (-28 != 32768)
...

Where did you get this ramdisk image from? What makes you think it is
working at all?

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
Earth -- mother of the most beautiful women in the universe.
	-- Apollo, "Who Mourns for Adonais?" stardate 3468.1


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[U-Boot-Users] RE: start / load addresses for initrd

[Wolfgang Denk]

Dear Jerry,

in message <EGEGIJHKDKJGAJMGIDPNIEDDCKAA.jwalden@digitalatlantic.com> you wrote:
> >I don't think that was a good idea. Basicly it means that you did not
> >understand what's going on,  which  is  not  a  good  base  to  build
> >embedded systems on.
> 
> Okay - now you got me going... (why is it that every time I have a
> communique with you I feel like I talking to a professor is college...)

Maybe it's just because I've  been  through  this  too  often  myself
before. I hope you did not take any offense - at least none was meant
by me.

> I discovered that the UART divisor I selected for u-boot is different than
> the uart divisor that the function serial_console_setup in
> /drivers/char/serial.c.

Seems you got it :-)


Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
Heavier than air flying machines are impossible.
                    -- Lord Kelvin, President, Royal Society, c. 1895

[U-Boot-Users] RE: start / load addresses for initrd

[Stefan Roese]

Jerry!

> > Once again - I'm making progress on bringing up Linux
> > on a custom 405GPr board using u-boot.
>
> ...which is not exactly the topic of this list.
>
> > First - I got my serial console working in Linux.
> > I did not have to use TLB's or BAT's to map
> > the memory addresses of the UART to properly initialize it.
> >
> > I simply commented out the initialization that is done in
> > /drivers/char/serial.c for the serial console.  The initialization
> > that I did in u-boot was sufficient.
>
> I don't think that was a good idea. Basicly it means that you did not
> understand what's going on,  which  is  not  a  good  base  to  build
> embedded systems on.

Please check the current implementation of the cpci405 board in the
linuxppc_2_4_devel tree (arch/ppc/platforms/cpci405.c / .h). There is a new
"cpci405_early_serial_map()" function (cloned from the evb405ep board), to
dynamically calculate BASE_BAUD from the UDIV setting. I am pretty sure,
that this is your problem!

By the way: We have all version of PPC405GP (200MHz, 266MHz) and PPC405GPr
(266MHz, 333MHz and 400MHz) running with this code!

Best regards,
Stefan.

[U-Boot-Users] RE: start / load addresses for initrd

[Jerry Walden]

>Where did you get this ramdisk image from?

I made the ramdisk image using the following procedure:

dd if=/dev/zero of=ramdisk bs=1k count=16384
/sbin/mke2fs -q -F -m0 ramdisk
mount -o loop ramdisk mountpoint
cd mountpoint
tar xf ../fsimage.tar
sync
sleep 1
sync
cd ..
umount mountpoint
sync
gzip -9 ramdisk
mkimage -n 'DA Ramdisk Image' -A ppc -O linux -T ramdisk -C gzip -d
ramdisk.gz initrd

>What makes you think it is working at all?

I performed the following procedure to verify it.

[root at hhl initrd]# dd if=initrd of=ramdisk.gz bs=64 skip=1
23583+1 records in
23583+1 records out
[root at hhl initrd]# gzip -d ramdisk.gz
[root at hhl initrd]# mount -o loop ramdisk mountpoint
[root at hhl initrd]# ls -al mountpoint
total 26
drwxr-xr-x   10 root     root         1024 Mar 20 15:34
drwxr-xr-x    3 root     root         4096 Apr  1 16:31
drwxr-xr-x    2 root     root         1024 Mar 20 15:34
drwxr-xr-x    2 root     root         2048 Mar 20 15:34
drwxr-xr-x    6 root     root         1024 Mar 20 15:34
drwxr-xr-x    2 root     root         2048 Mar 20 15:34
drwxr-xr-x    2 root     root        12288 Mar 20 15:34
drwxr-xr-x    2 root     root         1024 Mar 20 15:34
drwxr-xr-x    5 root     root         1024 Mar 20 15:34
drwxr-xr-x    4 root     root         1024 Mar 20 15:34

>
>Best regards,
>
>Wolfgang Denk


Below is a log of my BDI session (where I load the kernel and initrd) and
beneath that is a log of
my u-boot session - note: the command line is shown.

I have studied the code in rd.c, and the message is coming from a routine
called "flush_window" -
there is something I do not understand - I do not see a call to flush_window
anywhere, and the
declaration has an __init in front of it.  Can anyone explain to me how the
routine gets called?


BDI>reset
BDI>- TARGET: processing user reset request
BDI>- TARGET: reseting target passed
BDI>- TARGET: processing target startup ....
BDI>- TARGET: processing target startup passed
BDI>go
- Target started with DBCR0 = 0x80000001

BDI>halt
    Target state      : debug mode
    Debug entry cause : JTAG stop request
    Current PC        : 0x03fd236c
    Current CR        : 0x24002042
    Current MSR       : 0x00021000
    Current LR        : 0x03fd236c


BDI>load 0x100000 vmlinux.PPCBoot BIN
Loading vmlinux.PPCBoot , please wait ....
Loading program file passed
BDI>load 0x200000 initrd BIN
Loading initrd , please wait ....
Loading program file passed

BDI>go 0x03fd236c

- Target started with DBCR0 = 0x80000001



U-Boot 0.2.0 (Mar 27 2003 - 09:29:40)


CPU:   IBM PowerPC 405GPr Rev. A at 266.666 MHz (PLB=133, OPB=66, EBC=26
MHz)
           PCI async ext clock used, internal PCI arbiter enabled
           16 kB I-Cache 16 kB D-Cache

Board: ### No HW ID - assuming WALNUT405
I2C:   ready
DRAM:  64 MB

Now running in RAM - U-Boot at: 03fcf000
FLASH: 512 kB
*** Warning - bad CRC, using default environment

PCI:   Bus Dev VenId DevId Class Int
PCI Autoconfig: Memory region: [20000000-27ffffff]
PCI Autoconfig: I/O region: [800000-3ffffff]
PCI Scan: Found Bus 0, Device 0, Function 0
PCI Scan: Found Bus 0, Device 7, Function 0
PCI Autoconfig: BAR 0, Mem, size=0x1000000, address=0x20000000
PCI Autoconfig: BAR 1, I/O, size=0xffffff04, No room in resource
PCI Autoconfig: BAR 2, I/O, size=0x1000000, address=0x1000000
        00  07  1394  0978  0200  1c

In:    serial
Out:   serial
Err:   serial

U-Boot relocated to 03fcf000
IDE:   Bus 0: port = c
OK

H  Device 0: Model: SanDisk SDCFB-32 Firm: Vdg 1.23. Ser#: 003917A2203F2620
            Type: Removable Hard Disk
            Capacity: 30.6 MB = 0.0 GB (62720 x 512)
=>
=> imi 0x100000

## Checking Image at 00100000 ...
   Image Name:   Linux-2.4.18_mvl30-walnut
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    298672 Bytes = 291.7 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

=> imi 0x200000
## Checking Image at 00200000 ...
   Image Name:   DA Ramdisk Image
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    1509352 Bytes =  1.4 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
=> printenv
bootargs=root=/dev/ram rw ramdisk_size=8192 console=ttyS0,9600n8
console=tty0
bootcmd=bootm ffc0000
baudrate=9600
loads_echo=1
stdin=serial
stdout=serial
stderr=serial

Environment size: 169/65532 bytes
=> bootm 0x100000 0x200000
## Booting image at 00100000 ...
   Image Name:   Linux-2.4.18_mvl30-walnut
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    298672 Bytes = 291.7 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
## Current stack ends at 0x03F9EBE8 => set upper limit to 0x00800000
## cmdline at 0x007FFF00 ... 0x007FFF44
memstart    = 0x00000000
memsize     = 0x04000000
flashstart  = 0xFFF80000
flashsize   = 0x00080000
flashoffset = 0x00031000
sramstart   = 0x00000000
sramsize    = 0x00000000
bootflags   = 0x001E8480
procfreq    = 266.666 MHz
plb_busfreq = 133.333 MHz
pci_busfreq = 33.333 MHz
ethaddr     = 00:00:00:00:0:00
IP addr     = 0.0.0.0
baudrate    =   9600 bps

## Loading RAMDisk Image at 00200000 ...
   Image Name:   DA Ramdisk Image
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    1509352 Bytes =  1.4 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

## initrd at 0x00200040 ... 0x00370827 (len=1509352=0x1707E8)
   Loading Ramdisk to 03e2d000, end 03f9d7e8 ... OK
## Transferring control to Linux (at address 00000000) ...

Linux version 2.4.18_mvl30-walnut (root at hhl) (gcc version 3.2.1 20020930
(MontaVista)) #33 Tue Mar 25

<6>IBM Sycamore (IBM405GPr) Platform
On node 0 totalpages: 16384
zone(0): 16384 pages.

zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/ram rw ramdisk_size=8192 console=ttyS0,9600n8
console=tty0
serial_console_setup options = 9600n8 baud = 9600  state->baud_base = 691200
baud = 9600
quot = 72
info->io_type = SERIAL_IO_MEM info->iomem_base = ef600300
Calibrating delay loop... 266.24 BogoMIPS
Memory: 62268k available (512k kernel code, 212k data, 32k init, 0k highmem)
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
OCP uart ver 1.2 init complete
Starting kswapd
Disabling the Out Of Memory Killer
Serial driver version 5.05c (2001-07-08) with no serial options enabled
ttyS00 at 0x0000 (irq = 0) is a 16550A
ttyS01 at 0x0000 (irq = 1) is a 16550A
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
Tracer: Initialization complete
RAMDISK: Compressed image found at block 0
RAMDISK: incomplete write (ramdisk too small?) (-28 != 32768)

[U-Boot-Users] RE: start / load addresses for initrd

[Wolfgang Denk]

In message <EGEGIJHKDKJGAJMGIDPNGEFHCKAA.jwalden@digitalatlantic.com> you wrote:
> 
> >Where did you get this ramdisk image from?
> 
> I made the ramdisk image using the following procedure:
> 
> dd if=/dev/zero of=ramdisk bs=1k count=16384
> /sbin/mke2fs -q -F -m0 ramdisk
> mount -o loop ramdisk mountpoint
> cd mountpoint
> tar xf ../fsimage.tar

Where did you get "fsimage.tar" from? What does it contain.

> >What makes you think it is working at all?
> 
> I performed the following procedure to verify it.
> 
> [root at hhl initrd]# dd if=initrd of=ramdisk.gz bs=64 skip=1
> 23583+1 records in
> 23583+1 records out
> [root at hhl initrd]# gzip -d ramdisk.gz
> [root at hhl initrd]# mount -o loop ramdisk mountpoint
> [root at hhl initrd]# ls -al mountpoint
> total 26
> drwxr-xr-x   10 root     root         1024 Mar 20 15:34
> drwxr-xr-x    3 root     root         4096 Apr  1 16:31
> drwxr-xr-x    2 root     root         1024 Mar 20 15:34
> drwxr-xr-x    2 root     root         2048 Mar 20 15:34
> drwxr-xr-x    6 root     root         1024 Mar 20 15:34
> drwxr-xr-x    2 root     root         2048 Mar 20 15:34
> drwxr-xr-x    2 root     root        12288 Mar 20 15:34
> drwxr-xr-x    2 root     root         1024 Mar 20 15:34
> drwxr-xr-x    5 root     root         1024 Mar 20 15:34
> drwxr-xr-x    4 root     root         1024 Mar 20 15:34

Ummm... I don't even see a filename here. I don;t see if there is  an
"init" binary or a shell or any library or any device.

Which sort of output do you expect when providing such input? GIGO...


Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
This is an unauthorized cybernetic announcement.

[U-Boot-Users] RE: start / load addresses for initrd

[Jerry Walden]

>Where did you get "fsimage.tar" from?
I made it using info obtained from MontaVista Support.
Essentially I used thier Target Configuration Tool -
the script is pasted below.  An excerpt from the
tech support follows:

We recommend using TCT to build a root filesystem image.  The program
you use is /opt/hardhat/host/bin/targetconf.

If you need a non-GUI tool to build an initrd, we have one
that is used with our Compaq iPAQ LSP.  This is not supported
for general use in creating ramdisk images, but it should work
for you, and I've provided it here.

Instructions:

1.  If you've relocated your MontaVista Linux installation to somewhere
     other than the default location (/opt/hardhat/...), then you need
     to edit the script and change the line

     basedir = "/opt/hardhat"

     to point to the correct base directory for your installation.


2.  ctargetconf can only be used to build a filesystem. It will not build
     a kernel as is done in targetconf.

3.  Create a project in TCT but do not include a "Custom kernel". Basically,
     you are creating a TCT project that will only build a filesystem, i.e.,

     New Project -> (Fill in proper fields in "TCT: New Project" window,
     select LSP, ***BUT*** make sure to unselect "Use Custom Kernel").
     Then create a config file and choose all desired packages. Save the
     config.

4.  From your TCT project directory, copy the .project and *.cfg file
     to your working directory where ctargetconf is located.

5.  Build a filesystem image.

     ./ctargetconf -c test1.cfg -o fsimage.tar

     To see command options, just do,

     ./ctargetconf


6.  Making the initrd image:

     The above builds a tarball of the files in the root filesystem.  To
make an
     actual initrd image, you have to make a file of the correct size, make
an ext2
     filesystem on this file, mount the new filesystem, copy (preserving
symbolic links)
     the files from your tarball into the new filesystem, then unmount the
filesystem,
     sync, and compress the filesystem.  The following makes a 16 MB ramdisk
image
     from fsimage.tar:


     mkdir mountpoint
     dd if=/dev/zero of=ramdisk bs=1k count=16384
     /sbin/mke2fs -q -F -m0 ramdisk
     mount -o loop ramdisk mountpoint
     cd mount
     tar xf fsimage.tar
     sync
     sleep 1
     sync
     cd ..
     umount mountpoint
     sync
     gzip -9 ramdisk


>What does it contain.

tar -xvf fsimage.tar
ls -al
total 36
drwxr-xr-x    9 root     root         4096 Apr  1 18:27 .
drwxr-xr-x    4 root     root         4096 Apr  1 18:11 ..
drwxr-xr-x    2 root     root         4096 Apr  1 18:11 bin
drwxr-xr-x    2 root     root         4096 Apr  1 18:11 dev
drwxr-xr-x    6 root     root         4096 Apr  1 18:11 etc
drwxr-xr-x    2 root     root         4096 Apr  1 18:11 lib
drwxr-xr-x    2 root     root         4096 Apr  1 18:11 sbin
drwxr-xr-x    5 root     root         4096 Apr  1 18:11 usr
drwxr-xr-x    4 root     root         4096 Apr  1 18:11 var



>Ummm... I don't even see a filename here. I don;t see if there is  an
>"init" binary or a shell or any library or any device.
Sorry about that - I need to learn how to cut and paste properly ;-)

>Which sort of output do you expect when providing such input? GIGO...
I expect none - it was a mistake.

The mounted volume contains:

ls -al mountpoint
total 26
drwxr-xr-x   10 root     root         1024 Mar 20 15:34 .
drwxr-xr-x    4 root     root         4096 Apr  1 18:28 ..
drwxr-xr-x    2 root     root         1024 Mar 20 15:34 bin
drwxr-xr-x    2 root     root         2048 Mar 20 15:34 dev
drwxr-xr-x    6 root     root         1024 Mar 20 15:34 etc
drwxr-xr-x    2 root     root         2048 Mar 20 15:34 lib
drwxr-xr-x    2 root     root        12288 Mar 20 15:34 lost+found
drwxr-xr-x    2 root     root         1024 Mar 20 15:34 sbin
drwxr-xr-x    5 root     root         1024 Mar 20 15:34 usr
drwxr-xr-x    4 root     root         1024 Mar 20 15:34 var


>Wolfgang Denk

#!/usr/bin/env python

#
#  FILE:  ctargetconf
#
#  DESCRIPTION:
#	ctargetconf is a scalled back, commandline version of targetconf.
#
#  AUTHOR:  MontaVista Software, Inc. <source@mvista.com>
#
#  Copyright 2000-2001 MontaVista Software Inc.
#
#  This program is free software; you can redistribute  it and/or modify it
#  under  the terms of  the GNU General  Public License as published by the
#  Free Software Foundation;  either version 2 of the  License, or (at your
#  option) any later version.
#
#  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
#  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
#  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
#  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
#  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
#  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
#  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
#  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#  You should have received a copy of the  GNU General Public License along
#  with this program; if not, write  to the Free Software Foundation, Inc.,
#  675 Mass Ave, Cambridge, MA 02139, USA.
#

import string
import sys
import os
import os.path
import getopt

#
#  Find module library and add to search path
#

# The following assumes this script is installed under:
#	${basedir}/devkit/lsp/${lsp_name}/sub_dir/
thisdir = os.path.dirname(os.path.abspath(sys.argv[0]))
#basedir = os.path.normpath(os.path.join(thisdir, '../../../../'))
basedir = "/opt/hardhat"
libpath = os.path.join(basedir, 'host', 'lib', 'python')
if os.path.isdir(libpath):
    sys.path.insert(1, libpath)


#
#  Set relocatable base path
#

from MontaVista.Configurator.PEBackend import SetHHLBase

SetHHLBase(basedir)

from MontaVista.Configurator.PEBackend import Project, ProjectConfig,
LspDatum
from MontaVista.Configurator.PECfgComponents import PackageSelectorConfig,
TargetOptions

def _outcmd ( strdata ):
	if (SuppressOutput == "FALSE"):
		sys.stdout.write(strdata)
def _errcmd ( strdata ):
	sys.stderr.write(strdata)
def _donecmd ( ):
	sys.stderr.write("Done.\n")

WorkingDir=None
UseProjectFile="FALSE"
ProjectFile=None
LSPname=None
Config=None
StripFiles=None
OutputFile=None
SuppressOutput="FALSE"
DBVerify=None
ToolPrefix="FALSE"

def usage ():
	sys.stderr.write("uTCT The command line adventure\n\n")
	sys.stderr.write("\t-d <Working Directory> or --working-direcotry <Work
dir>   : If ommited the Current is chosen\n")
	sys.stderr.write("\t-p or --project-file
: Load Project file - optional project file\n")
	sys.stderr.write("\t-c <config file> or --package-configuration <config
file>  : Package Configuation (Default)\n")
	sys.stderr.write("\nThese options will override the project file if
provided:\n\n")
	sys.stderr.write("\t-s or --strip-files
: Strip files\n")
	sys.stderr.write("\t-u or --no-strip-files
: Don\'t Strip files (Default)\n")
	sys.stderr.write("\t-l <lsp name> or --lsp-name <lsp name>
: Set Lsp Name\n")
	sys.stderr.write("\t-n <project name> or --project-name <project name>
: Set Project Name\n")
	sys.stderr.write("\t-o <output file> or --output-file <output file>
: Output Filesystem file\n")
	sys.stderr.write("\t-q or --quiet
: Suppress Most Filesystem generation\n")
	sys.stderr.write("\t--db-verify
: Compare Configfile against Database\n")
	sys.stderr.write("\t--get-tool-prefix
: Output Tool prefix\n\n")
	sys.exit(1)
try:
        opts, args = getopt.getopt(sys.argv[1:], "d:pc:sul:n:o:q",
["working-directory=","project-file",
"package-configuration=","strip-files", \

"no-strip-files","lsp-name=","project-name=","output-file=","quiet","db-veri
fy",
								 "get-tool-prefix" ])
except:
        usage()

for o, a in opts:
        if ( o == "-d" or o == "--working-directory"):
                WorkingDir=a
        if ( o == "-p" or o == "--project-file"):
		UseProjectFile="TRUE"
        if ( o == "-c" or o == "--package-configuration"):
		Config = a
        if ( o == "-l" or o == "--lsp-name"):
		LSPname = a
        if ( o == "-n" or o == "--project-name"):
                print o + " " + a
        if ( o == "-s" or o == "--strip-files"):
                StripFiles="TRUE"
        if ( o == "-u" or o == "--no-strip-files" ):
                StripFiles="FALSE"
	if ( o == "-o" or o == "--output-file" ):
		OutputFile = a
	if ( o == "-q" or o == "--quiet"):
		SuppressOutput = "TRUE"
	if ( o == "--db-verify"):
		DBVerify="TRUE"
	if ( o == "--get-tool-prefix"):
		ToolPrefix="TRUE"

if ( Config == None and ToolPrefix != "TRUE" ):
	sys.stderr.write("You must supply a Package Config file\n\n")
	usage()

if (WorkingDir == None):
	WorkingDir=os.getcwd()

if (Config != None):
	PackConfig = os.path.split(Config)

myProject = Project()

if ( UseProjectFile == "TRUE" ):
	myProject.Load(WorkingDir)

elif (LSPname != None):
	myProject.path=WorkingDir

if ( LSPname != None):
	LSP=LspDatum(LSPname)
	if(ToolPrefix == "TRUE"):
		print LSP.GetArchBin() + "/" + LSP.GetArchPrefix()
		sys.exit(1)
	myProject.SetLSP(LSP)
	myProject.lspname = LSP.GetName()

if ( UseProjectFile == "FALSE" and LSPname == None):
	myProject.Load(WorkingDir)

myProject.SetKernelType("Prebuilt")


myProjectConfig = ProjectConfig(myProject.GetWorkDir(), myProject)

if ( PackConfig[0] != ""):
	temp = myProjectConfig.GetWorkDir()
	myProjectConfig.workdir = PackConfig[0] + "/"
	if ( not myProjectConfig.LoadConfig(PackConfig[1])):
		sys.stderr.write("Could not read " + Config + "\n")
		sys.exit(1)
	myProjectConfig.workdir = temp

elif ( os.path.isfile(myProjectConfig.GetWorkDir() + "/" + PackConfig[1])):
	myProjectConfig.LoadConfig(PackConfig[1])

elif ( os.path.isfile(PackConfig[1])):
	temp = myProjectConfig.workdir
	myProjectConfig.workdir = os.getcwd() + "/"
	if ( not myProjectConfig.LoadConfig(PackConfig[1])):
		sys.stderr.write("Could not read " + Config + "\n")
		sys.exit(1)
	myProjectConfig.workdir = temp

else:
	sys.stderr.write("Could not find " + Config + "\n")
	sys.exit(1)

MyLSP=myProject.GetLSP()

pinfodirlist = MyLSP.GetPackageInfoDBDirList()

packageSelCfg = PackageSelectorConfig(myProject, pinfodirlist)
packageSelCfg.SetConfig(myProjectConfig)

sys.stderr.write("Building Package Database...")
packageSelCfg.collectprocess.Wait()
sys.stderr.write("Done.\n")

MissingRequiredPackages = packageSelCfg.GetMissingRequiredPackages()

ConflictingPackages = packageSelCfg.GetConflicts()

MissingPackages = packageSelCfg.GetMissingPackages()

if ( MissingRequiredPackages != [] or MissingPackages != [] or
ConflictingPackages != [] ):
	if ( MissingRequiredPackages != [] ):
		print ("Missing Required Package(s):")
		for  MisReqPack in MissingRequiredPackages:
			print MisReqPack
	if ( MissingPackages != [] ):
		print "Missing Package(s):"
		for MisPack in MissingPackages:
			print MisPack
	if ( ConflictingPackages != [] ):
		print "Conflicting Package(s):"
		for ConPack in ConflictingPackages:
			print MisReqPack
 	sys.stderr.write("Could not reconcile database and package configuration
file\n")
	sys.exit(1)

if ( DBVerify == "TRUE" ):
	print "Database Verified"
	sys.exit(1)

Options = TargetOptions(myProject)

Options.SetConfig(myProjectConfig)

if ( StripFiles == "TRUE"):
	Options.SetOption('strip',1)
elif ( StripFiles == "FALSE"):
	Options.SetOption('strip',0)

if ( OutputFile != None ):
	Options.SetOption('fsimage', OutputFile)

BuildTarfile = myProjectConfig.GetConfigBuilder( outcmd = _outcmd, errcmd =
_errcmd, donecmd = _donecmd)

sys.stderr.write("Building Target Filesystem...")

if (SuppressOutput == "FALSE"):
	sys.stderr.write("\n")

BuildTarfile.Start()

sys.exit(0)

[U-Boot-Users] RE: start / load addresses for initrd

[Wolfgang Denk]

In message <EGEGIJHKDKJGAJMGIDPNKEFKCKAA.jwalden@digitalatlantic.com> you wrote:
> 
> >Where did you get "fsimage.tar" from?
> I made it using info obtained from MontaVista Support.
> Essentially I used thier Target Configuration Tool -

Sorry, but I guess you should ask MV support about the problems  with
their tools.


Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
Our business is run on trust.  We trust you will pay in advance.

[U-Boot-Users] RE: start / load addresses for initrd

[Jerry Walden]

Okay - I don't want to use thier tools - can you see anything obvious that
is missing from the initrd (fsimage.tar) file.

Since I do not want to use thier tools where can I find info on
making a proper initrd (I already read Documentation/initrd.txt).

Sorry - this thread should be moved over to the embedded Linux
forum - It started out as a u-boot question 'cause I thought
that my env variables were wrong.

Thanks

Jerry

-----Original Message-----
From: u-boot-users-admin@lists.sourceforge.net
[mailto:u-boot-users-admin at lists.sourceforge.net]On Behalf Of Wolfgang
Denk
Sent: Tuesday, April 01, 2003 6:52 PM
To: jwalden at digitalatlantic.com
Cc: U-Boot-Users at Lists. Sourceforge. Net
Subject: Re: [U-Boot-Users] RE: start / load addresses for initrd


In message <EGEGIJHKDKJGAJMGIDPNKEFKCKAA.jwalden@digitalatlantic.com> you
wrote:
>
> >Where did you get "fsimage.tar" from?
> I made it using info obtained from MontaVista Support.
> Essentially I used thier Target Configuration Tool -

Sorry, but I guess you should ask MV support about the problems  with
their tools.


Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
Our business is run on trust.  We trust you will pay in advance.


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[U-Boot-Users] RE: start / load addresses for initrd

[Wolfgang Denk]

In message <MMEKKOMGOBGEIENHLGDLEEGMCHAA.jwalden123@adelphia.net> you wrote:
> Okay - I don't want to use thier tools - can you see anything obvious that
> is missing from the initrd (fsimage.tar) file.

You cannot see anything  from  just  the  listing  of  the  tp  level
directories.  There  are  many  things to check: the existence of the
correct entries to /dev, is there a "init" process, are all  requires
(shared?) libs installed, ...

> Since I do not want to use thier tools where can I find info on
> making a proper initrd (I already read Documentation/initrd.txt).

Have a look at the build script we use for the SELF RPM in our  ELDK;
or   unpack  the  pRamdisk  image  that  comes  with  the  ELDK  (see
/opt/eldk/<cpu>/images on your installed system).


Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
If you fail to plan, plan to fail.

[U-Boot-Users] RE: start / load addresses for initrd

[Jerry Walden]

Hello:

I was getting the error:
(RAMDISK: incomplete write (ramdisk too small?) (-28!= 32768)
 and then I discovered the my command line option ramdisk_size=8192 needs to
 be changed to ramdisk_size=16384.

 Now I am past the ramdisk too small error, and I am getting the following
 error (see complete trace below):

 RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
 Tracer: Initialization complete
 RAMDISK: Couldn't find valid RAM disk image starting at 0.
 Freeing initrd memory: 1473k freed
 Kernel panic: VFS: Unable to mount root fs on 01:00

In the below trace I see the two following lines:
 Loading RAMDisk Image at 00200000 ...
 Loading Ramdisk to 03e2d000, end 03f9d7e8 ... OK

The "error" above seems to suggest that the loader is looking
for a ramdisk at 0 - however the two above lines (which appear
to be conflicting) suggest that the image is at 0x200000 or 0x03e2d00.

Any suggestions?

Thanks

Jerry Walden

> bootm 0x100000 0x200000
> ## Booting image at 00100000 ...
> Image Name:   Linux-2.4.18_mvl30-walnut
> Image Type:   PowerPC Linux Kernel Image (gzip compressed)
> Data Size:    298672 Bytes = 291.7 kB
> Load Address: 00000000
> Entry Point:  00000000 Verifying Checksum ... OK
> Uncompressing Kernel Image ... OK
> ## Current stack ends at 0x03F9EBE8 => set upper limit to 0x00800000
> ## cmdline at 0x007FFF00 ... 0x007FFF45
> memstart    = 0x00000000
> memsize     = 0x04000000
> flashstart  = 0xFFF80000
> flashsize   = 0x00080000
> flashoffset = 0x00031000
> sramstart   = 0x00000000
> sramsize    = 0x00000000
> bootflags   = 0x001E8480
> procfreq    = 266.666 MHz
> b_busfreq = 133.333 MHz
> pci_busfreq = 33.333 MHz
> ethaddr     = 00:00:00:00:00:00
> IP addr     = 0.0.0.0
> baudrate    =   9600 bps
> ## Loading RAMDisk Image at 00200000 ...
> Image Name:   DA Ramdisk Image
> Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
> Data Size:    1509352 Bytes =  1.4 MB
> Load Address: 00000000
> Entry Point:  00000000
> Verifying Checksum ... OK
> ## initrd at 0x00200040 ... 0x00370827 (len=1509352=0x1707E8)
> Loading Ramdisk to 03e2d000, end 03f9d7e8 ... OK
> ## Transferring control to Linux (at address 00000000) ...
> Linux version 2.4.18_mvl30-walnut (root at hhl) (gcc version 3.2.1 20020930
> (MontaVista)) #33 Tue Mar 25 15:30:00
> <6>IBM Sycamore (IBM405GPr) Platform
> On node 0 totalpages: 16384
> zone(0): 16384 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Kernel command line: root=/dev/ram rw ramdisk_size=16384
> console=ttyS0,9600n8 console=tty0
> Calibrating delay loop... 266.24 BogoMIPS^[[1;29r^[[29;1H
> Memory: 62268k available (512k kernel code, 212k data, 32k init, 0k
highmem)
> Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
> Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
> Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> OCP uart ver 1.2 init complete
> Starting kswapd
> Disabling the Out Of Memory Killer
> Serial driver version 5.05c (2001-07-08) with no serial options enabled
> ttyS00 at 0x0000 (irq = 0) is a 16550A
> ttyS01 at 0x0000 (irq = 1) is a 16550A
> block: 128 slots per queue, batch=32
> RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
> Tracer: Initialization complete
> RAMDISK: Couldn't find valid RAM disk image starting at 0.
> Freeing initrd memory: 1473k freed
> Kernel panic: VFS: Unable to mount root fs on 01:00
>
>
> Jerry Walden
>


-----Original Message-----
From: wd@denx.de [mailto:wd at denx.de]
Sent: Tuesday, April 01, 2003 6:11 PM
To: jwalden at digitalatlantic.com
Cc: U-Boot-Users at Lists. Sourceforge. Net
Subject: Re: [U-Boot-Users] RE: start / load addresses for initrd


In message <EGEGIJHKDKJGAJMGIDPNGEFHCKAA.jwalden@digitalatlantic.com> you
wrote:
>
> >Where did you get this ramdisk image from?
>
> I made the ramdisk image using the following procedure:
>
> dd if=/dev/zero of=ramdisk bs=1k count=16384
> /sbin/mke2fs -q -F -m0 ramdisk
> mount -o loop ramdisk mountpoint
> cd mountpoint
> tar xf ../fsimage.tar

Where did you get "fsimage.tar" from? What does it contain.

> >What makes you think it is working at all?
>
> I performed the following procedure to verify it.
>
> [root at hhl initrd]# dd if=initrd of=ramdisk.gz bs=64 skip=1
> 23583+1 records in
> 23583+1 records out
> [root at hhl initrd]# gzip -d ramdisk.gz
> [root at hhl initrd]# mount -o loop ramdisk mountpoint
> [root at hhl initrd]# ls -al mountpoint
> total 26
> drwxr-xr-x   10 root     root         1024 Mar 20 15:34
> drwxr-xr-x    3 root     root         4096 Apr  1 16:31
> drwxr-xr-x    2 root     root         1024 Mar 20 15:34
> drwxr-xr-x    2 root     root         2048 Mar 20 15:34
> drwxr-xr-x    6 root     root         1024 Mar 20 15:34
> drwxr-xr-x    2 root     root         2048 Mar 20 15:34
> drwxr-xr-x    2 root     root        12288 Mar 20 15:34
> drwxr-xr-x    2 root     root         1024 Mar 20 15:34
> drwxr-xr-x    5 root     root         1024 Mar 20 15:34
> drwxr-xr-x    4 root     root         1024 Mar 20 15:34

Ummm... I don't even see a filename here. I don;t see if there is  an
"init" binary or a shell or any library or any device.

Which sort of output do you expect when providing such input? GIGO...


Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
This is an unauthorized cybernetic announcement.

[U-Boot-Users] RE: start / load addresses for initrd

[Wolfgang Denk]

Jerry,

in message <EGEGIJHKDKJGAJMGIDPNEEGNCKAA.jwalden@digitalatlantic.com> you wrote:
> 
> I was getting the error:
> (RAMDISK: incomplete write (ramdisk too small?) (-28!= 32768)
>  and then I discovered the my command line option ramdisk_size=8192 needs to
>  be changed to ramdisk_size=16384.

What makes you think so? I think you are wrong.

> > ## Loading RAMDisk Image at 00200000 ...
> > Image Name:   DA Ramdisk Image
> > Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
> > Data Size:    1509352 Bytes =  1.4 MB

Given a compressed size of 1.4 MB, the contents of the  ramdisk  will
be probably in the range of 3...4 MB. Did you really create a ramdisk
16 MB big?

> > RAMDISK: Couldn't find valid RAM disk image starting at 0.
> > Freeing initrd memory: 1473k freed
> > Kernel panic: VFS: Unable to mount root fs on 01:00

Again, I see no indication that  you  really  have  a  good,  working
ramdisk image. I think you should ask MV support for help.

Alternmatively, you could try using a known-to-work ramdisk image for
a start, for example one from here:
ftp://ftp.denx.de/pub/LinuxPPC/usr/src/SELF/images/



Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
I don't know if it's what you want, but it's what you get.  :-)
                      - Larry Wall in <10502@jpl-devvax.JPL.NASA.GOV>

[U-Boot-Users] RE: start / load addresses for initrd

[Jerry Walden]

>> I was getting the error:
>> (RAMDISK: incomplete write (ramdisk too small?) (-28!= 32768)
>>  and then I discovered the my command line option ramdisk_size=8192 needs
to
>>  be changed to ramdisk_size=16384.

>What makes you think so? I think you are wrong.
Yes - I was wrong - I misinterpreted the definition of the command line
option

> > ## Loading RAMDisk Image at 00200000 ...
> > Image Name:   DA Ramdisk Image
> > Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
> > Data Size:    1509352 Bytes =  1.4 MB

>Given a compressed size of 1.4 MB, the contents of the  ramdisk  will
>be probably in the range of 3...4 MB. Did you really create a ramdisk
>16 MB big?

Yes - stupid mistake

> > RAMDISK: Couldn't find valid RAM disk image starting at 0.
> > Freeing initrd memory: 1473k freed
> > Kernel panic: VFS: Unable to mount root fs on 01:00

>Again, I see no indication that  you  really  have  a  good,  working
>ramdisk image. I think you should ask MV support for help.
>
>Alternmatively, you could try using a known-to-work ramdisk image for
>a start, for example one from here:
>ftp://ftp.denx.de/pub/LinuxPPC/usr/src/SELF/images/


Okay - I downloaded pRamdisk and I now have the following error:

>RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
>Tracer: Initialization complete
>RAMDISK: Compressed image found at block 0
>RAMDISK: incomplete write (ramdisk too small?) (-28 != 32768)

So now it has found a valid ramdisk image - and it was not before,
however I still get the other error.

Kindest Regards,

Jerry Walden

Entire Boot Log is Below:

U-Boot 0.2.0 (Apr  2 2003 - 11:42:33)

CPU:   IBM PowerPC 405GPr Rev. A at 266.666 MHz (PLB=133, OPB=66, EBC=26
MHz)
           PCI async ext clock used, internal PCI arbiter enabled
           16 kB I-Cache 16 kB D-Cache

Board: ### No HW ID - assuming WALNUT405
I2C:   ready
DRAM:  64 MB
Now running in RAM - U-Boot at: 03fcf000
FLASH: 512 kB
*** Warning - bad CRC, using default environment

PCI:   Bus Dev VenId DevId Class In
PCI Autoconfig: Memory region: [20000000-27ffffff]
PCI Autoconfig: I/O region: [800000-3ffffff]
PCI Scan: Found Bus 0, Device 0, Function 0
PCI Scan: Found Bus 0, Device 7, Function 0
PCI Autoconfig: BAR 0, Mem, size=0x1000000, address=0x20000000
PCI Autoconfig: BAR 1, I/O, size=0xffffff04, No room in resource
PCI Autoconfig: BAR 2, I/O, size=0x1000000, address=0x1000000
        00  07  1394  0978  0200  1c

In:    serial
Out:   serial
Err:   serial

U-Boot relocated to 03fcf000
   Bus 0: port = c
OK
  Device 0: Model: SanDisk SDCFB-32 Firm: Vdg 1.23. Ser#: 003917A2203F2620
            Type: Removable Hard Disk
            Capacity: 30.6 MB = 0.0 GB (62720 x 512)
=>
=> imi 0x100000

## Checking Image at 00100000 ...
Image Name:   Linux-2.4.18_mvl30-walnut
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    300107 Bytes = 293.1 kB
Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

=> imi 0x200000

## Checking Image at 00200000 ...
   Image Name:   Simple Embedded Linux Framework
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    1476478 Bytes =  1.4 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
=> bootm 0x100000 0x200000

## Booting image at 00100000 ...
   Image Name:   Linux-2.4.18_mvl30-walnut
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    300107 Bytes = 293.1 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
## Current stack ends at 0x03F9EBE8 => set upper limit to 0x00800000
## cmdline at 0x007FFF00 ... 0x007FFF45
memstart    = 0x00000000
memsize     = 0x04000000
flashstart  = 0xFFF80000
flashsize   = 0x00080000
flashoffset = 0x0003100
ramstart   = 0x00000000
ramsize    = 0x00000000
bootflags   = 0x001E8480
procfreq    = 266.666 MHz
lb_busfreq = 133.333 MHz
pci_busfreq = 33.333 MHz
ethaddr     = 00:00:00:00:00:00
IP addr     = 0.0.0.0
baudrate    =   9600 bps

## Loading RAMDisk Image at 00200000 ...

   Image Name:   Simple Embedded Linux Framework
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    1476478 Bytes =  1.4 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

## initrd at 0x00200040 ... 0x003687BD (len=1476478=0x16877E)

   Loading Ramdisk to 03e35000, end 03f9d77e ... OK

## Transferring control to Linux (at address 00000000) ...
Linux version 2.4.18_mvl30-walnut (root at hhl) (gcc version 3.2.1 20020930
(MontaVista)) #34
IBM Sycamore (IBM405GPr) Platform

On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.

Kernel command line: root=/dev/ram rw ramdisk_size=16384
console=ttyS0,9600n8 console=tty0
serial_out UART_LCR 176
Calibrating delay loop... 266.24 BogoMIPS
Memory: 62296k available (516k kernel code, 212k data, 32k init, 0k highmem)
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
OCP uart ver 1.2 init complete
Starting kswapd
Disabling the Out Of Memory Killer
Serial driver version 5.05c (2001-07-08) with no serial options enabled
ttyS00 at 0x0000 (irq = 0) is a 16550A
ttyS01 at 0x0000 (irq = 1) is a 16550A
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
Tracer: Initialization complete
RAMDISK: Compressed image found at block 0
RAMDISK: incomplete write (ramdisk too small?) (-28 != 32768)

Jerry Walden
Program Manager
Digital Atlantic Inc
http://www.digitalatlantic.com
jwalden at digitalatlantic.com
1-877-494-6073 x407
cell - 703-431-2413

-----Original Message-----
From: u-boot-users-admin@lists.sourceforge.net
[mailto:u-boot-users-admin at lists.sourceforge.net]On Behalf Of Wolfgang
Denk
Sent: Wednesday, April 02, 2003 3:13 PM
To: jwalden at digitalatlantic.com
Cc: U-Boot-Users at Lists. Sourceforge. Net
Subject: Re: [U-Boot-Users] RE: start / load addresses for initrd


Jerry,

in message <EGEGIJHKDKJGAJMGIDPNEEGNCKAA.jwalden@digitalatlantic.com> you
wrote:
>
> I was getting the error:
> (RAMDISK: incomplete write (ramdisk too small?) (-28!= 32768)
>  and then I discovered the my command line option ramdisk_size=8192 needs
to
>  be changed to ramdisk_size=16384.

What makes you think so? I think you are wrong.

> > ## Loading RAMDisk Image at 00200000 ...
> > Image Name:   DA Ramdisk Image
> > Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
> > Data Size:    1509352 Bytes =  1.4 MB

Given a compressed size of 1.4 MB, the contents of the  ramdisk  will
be probably in the range of 3...4 MB. Did you really create a ramdisk
16 MB big?

> > RAMDISK: Couldn't find valid RAM disk image starting at 0.
> > Freeing initrd memory: 1473k freed
> > Kernel panic: VFS: Unable to mount root fs on 01:00

Again, I see no indication that  you  really  have  a  good,  working
ramdisk image. I think you should ask MV support for help.

Alternmatively, you could try using a known-to-work ramdisk image for
a start, for example one from here:
ftp://ftp.denx.de/pub/LinuxPPC/usr/src/SELF/images/



Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
I don't know if it's what you want, but it's what you get.  :-)
                      - Larry Wall in <10502@jpl-devvax.JPL.NASA.GOV>


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[U-Boot-Users] RE: start / load addresses for initrd

[Wolfgang Denk]

In message <EGEGIJHKDKJGAJMGIDPNKEHBCKAA.jwalden@digitalatlantic.com> you wrote:
>
> >RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
> >Tracer: Initialization complete
> >RAMDISK: Compressed image found at block 0
> >RAMDISK: incomplete write (ramdisk too small?) (-28 != 32768)
> 
> So now it has found a valid ramdisk image - and it was not before,
> however I still get the other error.

You can try some of the usual  things:  load  the  images  at  higher
addresses,  for  example  the  kernel  at 0x200000 and the ramdisk at
0x600000.

> => imi 0x100000
> 
> ## Checking Image at 00100000 ...
> Image Name:   Linux-2.4.18_mvl30-walnut
> Image Type:   PowerPC Linux Kernel Image (gzip compressed)
> Data Size:    300107 Bytes = 293.1 kB
> Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK

The kernel size is really  small.  Please  check  again  your  kernel
configuration if it contains everything you need.


Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
A girl with a future avoids the man with a past.
                                   -- Evan Esar, "The Humor of Humor"

[U-Boot-Users] RE: start / load addresses for initrd

[Reinhard Meyer]

Excuse me, does that mean there are SIXTEEN RAM disks of 16 MEGABYTES each?

----- Original Message -----

RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize

[U-Boot-Users] u-boot boot options

[Jerry Walden]

I feel like I'm setting myself up for another "Wolfgang RTFM" response -
however here it goes.

It appears now that everything works with u-boot!  I can even do a tftpboot
etc.

What I'd like to do is to write a script (I read the section on scripts),
that
will:

tftpboot 0x100000 mykernel.PPCBoot
tftpboot 0x300000 myinitrd.PPCBoot
bootm 0x100000 0x300000

What is the best way to do this?  I cannot figure it out from the docs.

Thanks!

Jerry Walden

[U-Boot-Users] u-boot boot options

[Jim Potter]

Setup your bootcommand variable -- here's my default:

#define CONFIG_BOOTCOMMAND     \
 "setenv bootargs console=ttyS0,38400 root=/dev/ram ramdisk=24576
init=/linuxrc && " \
 "setenv verify n && " \
 "bootm 0xff800000 0xffa50000"

...And I have another that I use, which uses tftpboot & bootm:

#define CONFIG_BOOTCOMMAND_ETH_RAMDISK  \
 "setenv ipaddr 192.168.1.54 && "  \
 "setenv serverip 192.168.1.7 && "  \
 "setenv bootargs console=ttyS0,38400 root=/dev/ram ramdisk=24576
init=/linuxrc && " \
 "tftpboot 200000 vmlinux.SMP && "   \
 "tftpboot 1000000 initrd.ppcboot && " \
 "bootm 200000 1000000"




Jerry Walden wrote:

> I feel like I'm setting myself up for another "Wolfgang RTFM" response -
> however here it goes.
>
> It appears now that everything works with u-boot!  I can even do a tftpboot
> etc.
>
> What I'd like to do is to write a script (I read the section on scripts),
> that
> will:
>
> tftpboot 0x100000 mykernel.PPCBoot
> tftpboot 0x300000 myinitrd.PPCBoot
> bootm 0x100000 0x300000
>
> What is the best way to do this?  I cannot figure it out from the docs.
>
> Thanks!
>
> Jerry Walden
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> U-Boot-Users mailing list
> U-Boot-Users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/u-boot-users

--
Sincerely,

Jim Potter
45th Parallel Processing, Inc.

  Volunteer Firefighting: Bustin' ours, Savin' yours.

[U-Boot-Users] u-boot boot options

[Jerry Walden]

Thanks very much!

Jerry Walden

-----Original Message-----
From: u-boot-users-admin@lists.sourceforge.net
[mailto:u-boot-users-admin at lists.sourceforge.net]On Behalf Of Jim Potter
Sent: Monday, April 21, 2003 2:14 PM
To: U-Boot-Users at Lists. Sourceforge. Net
Subject: Re: [U-Boot-Users] u-boot boot options



Setup your bootcommand variable -- here's my default:

#define CONFIG_BOOTCOMMAND     \
 "setenv bootargs console=ttyS0,38400 root=/dev/ram ramdisk=24576
init=/linuxrc && " \
 "setenv verify n && " \
 "bootm 0xff800000 0xffa50000"

...And I have another that I use, which uses tftpboot & bootm:

#define CONFIG_BOOTCOMMAND_ETH_RAMDISK  \
 "setenv ipaddr 192.168.1.54 && "  \
 "setenv serverip 192.168.1.7 && "  \
 "setenv bootargs console=ttyS0,38400 root=/dev/ram ramdisk=24576
init=/linuxrc && " \
 "tftpboot 200000 vmlinux.SMP && "   \
 "tftpboot 1000000 initrd.ppcboot && " \
 "bootm 200000 1000000"




Jerry Walden wrote:

> I feel like I'm setting myself up for another "Wolfgang RTFM" response -
> however here it goes.
>
> It appears now that everything works with u-boot!  I can even do a
tftpboot
> etc.
>
> What I'd like to do is to write a script (I read the section on scripts),
> that
> will:
>
> tftpboot 0x100000 mykernel.PPCBoot
> tftpboot 0x300000 myinitrd.PPCBoot
> bootm 0x100000 0x300000
>
> What is the best way to do this?  I cannot figure it out from the docs.
>
> Thanks!
>
> Jerry Walden
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> U-Boot-Users mailing list
> U-Boot-Users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/u-boot-users

--
Sincerely,

Jim Potter
45th Parallel Processing, Inc.

  Volunteer Firefighting: Bustin' ours, Savin' yours.




-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
U-Boot-Users mailing list
U-Boot-Users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/u-boot-users

[U-Boot-Users] u-boot boot options

[Wolfgang Denk]

In message <3EA434ED.1F1F515D@dualg4.com> you wrote:
> 
> Setup your bootcommand variable -- here's my default:
> 
> #define CONFIG_BOOTCOMMAND     \
...

This is ok for pre-defined commands (i.  e.  good  for  a  production
version),  but I think I should point out that you can do exactly the
same thing using "setenv" + "saveenv" from the command line.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
He is truly wise who gains wisdom from another's mishap.

[U-Boot-Users] u-boot boot options

[Wolfgang Denk]

In message <EGEGIJHKDKJGAJMGIDPNIEBJCLAA.jwalden@digitalatlantic.com> you wrote:
> I feel like I'm setting myself up for another "Wolfgang RTFM" response -
> however here it goes.

;-)

> It appears now that everything works with u-boot!  I can even do a tftpboot
> etc.

Great.

> What I'd like to do is to write a script (I read the section on scripts),
> that
> will:
> 
> tftpboot 0x100000 mykernel.PPCBoot
> tftpboot 0x300000 myinitrd.PPCBoot
> bootm 0x100000 0x300000
> 
> What is the best way to do this?  I cannot figure it out from the docs.

There is no "best" way, as TIMTOWTDI.

1) Enter:

	=> setenv myboot 'tftp 100000 mykernel.PPCBoot;tftp 300000 myinitrd.PPCBoot;bootm 100000 300000'
	=> run myboot

2) Create a multifile image which can be loaded / booted in one step.

3) Put your 3 lines above in atext file, use "mkimage ... -T  script"
   to  create  a script image which you can store somewhere in RAM or
   flash, and use "autoscr <addr>" to exeecute the script.


Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
Einstein argued that there must be simplified explanations of nature,
because God is not capricious or arbitrary. No  such  faith  comforts
the software engineer.                             - Fred Brooks, Jr.

[U-Boot-Users] RE: start / load addresses for initrd

[Chris Hallinan]

You can check your RAMDISK as follows, assuming your development
workstation supports loop device (not all distro's do out of the
box):

dd if=ppcboot_ramdisk_image of=/tmp/ramdisk.gz bs=64 skip=1
gzip -d /tmp/ramdisk.gz
mount -o loop /tmp/ramdisk /mnt/remote (or your favorite mount
point, which must exist)

If you can mount your image this way, it's likely OK, and you have
to look elsewhere.

The error being reported is -ENOSPC, (.../asm/errno.h), which
presumes your ramdisk is too small.  Try increasing the size of the
ramdisk to 8192 on the kernel command line like this:
ramdisk_size=8192

That should do it.

-Chris


> -----Original Message-----
> From: u-boot-users-admin at lists.sourceforge.net
> [mailto:u-boot-users-admin at lists.sourceforge.net]On
> Behalf Of Jerry
> Walden
> Sent: Tuesday, March 25, 2003 12:46 PM
> To: U-Boot-Users at Lists. Sourceforge. Net
> Subject: [U-Boot-Users] RE: start / load addresses for initrd
>
>
>
> Once again - I'm making progress on bringing up Linux
> on a custom 405GPr board using u-boot.
>
> First - I got my serial console working in Linux.
> I did not have to use TLB's or BAT's to map
> the memory addresses of the UART to properly initialize it.
>
> I simply commented out the initialization that is done in
> /drivers/char/serial.c for the serial console.  The initialization
> that I did in u-boot was sufficient.
>
> So now my printk's can be seen and logged.
>
> At this point I am trying to get the ramdisk working.  The
> reason I am posting to this list is that I am not sure of the
> command line kernel options for initrd and the ram disk.
>
> Yes - I read the FAQ's at the DENX site, as well as initrd.txt
> and I still am mystified as to what is happening.  Below is a log
> of the boot attempt - any help would be greatly appreciated:
>
>   U-Boot 0.2.0 (Mar 24 2003 - 11:49:36)  CPU:   IBM
> PowerPC 405GPr Rev. A at
> 266.666 MHz (PLB=133, OPB=66, EBC=26 MHz)
>            PCI async ext clock used, internal PCI arbiter enabled
>            16 kB I-Cache 16 kB D-Cache Board: ### No HW
> ID - assuming
> WALNUT405
> I2C:   ready
> DRAM:  64 MB
> Now running in RAM - U-Boot at: 03fcf000
> FLASH: 512 kB
> *** Warning - bad CRC, using default environment PCI:
> Bus Dev VenId DevId
> Class Int
> PCI Autoconfig: Memory region: [20000000-27ffffff]
> PCI Autoconfig: I/O region: [800000-3ffffff]
> PCI Scan: Found Bus 0, Device 0, Function 0
> PCI Scan: Found Bus 0, Device 7, Function 0
> PCI Autoconfig: BAR 0, Mem, size=0x1000000, address=0x20000000
> PCI Autoconfig: BAR 1, I/O, size=0xffffff04, No room in resource
> PCI Autoconfig: BAR 2, I/O, size=0x1000000, address=0x1000000
>        00  07  1394  0978  0200  1c
>
> In:    serial
> Out:   serial
> Err:   serial U-Boot relocated to 03fcf000
> IDE:   Bus 0: port = c
> OK     Device 0: Model: SanDisk SDCFB-64 Firm: Vdg 8.16. Ser#:
> 111913G1602X4714
>        Type: Removable Hard Disk
>        Capacity: 61.2 MB = 0.0 GB (125440 x 512) => imi 0x100000
> ## Checking Image at 00100000 ...
>    Image Name:   Linux-2.4.18_mvl30-walnut
>    Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>    Data Size:    298692 Bytes = 291.7 kB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>
> => imi 0x200000 ## Checking Image at 00200000 ...
>    Image Name:   DA Ramdisk Image
>    Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
>    Data Size:    1509352 Bytes =  1.4 MB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>
> => bootm 0x100000 0x200000 ## Booting image at 00100000 ...
>    Image Name:   Linux-2.4.18_mvl30-walnut
>    Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>    Data Size:    298692 Bytes = 291.7 kB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>    Uncompressing Kernel Image ... OK
> ## Current stack ends at 0x03F9EBD8 => set upper limit to
> 0x00800000
> ## cmdline at 0x007FFF00 ... 0x007FFF2F
> memsize     = 0x04000000
> flashstart  = 0xFFF80000
> flashsize   = 0x00080000
> flashoffset = 0x00031000
> sramstart   = 0x00000000
> sramsize    = 0x00000000
> bootflags   = 0x001E8480
> procfreq    = 266.666 MHz
> plb_busfreq = 133.333 MHz
> pci_busfreq = 33.333 MHz
> ethaddr     = 00:00:00:00:00:00
> IP addr     = 0.0.0.0
> baudrate    =   9600 bps
>  ## Loading RAMDisk Image at 00200000 ...
>   Image Name:   DA Ramdisk Image
>   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
>   Data Size:    1509352 Bytes =  1.4 MB
>   Load Address: 00000000
>   Entry Point:  00000000
>   Verifying Checksum ... OK
>
>  ## initrd at 0x00200040 ... 0x00370827 (len=1509352=0x1707E8)
>    Loading Ramdisk to 03e2d000, end 03f9d7e8 ... OK
>
>  ## Transferring control to Linux (at address 00000000) ...
>
> Linux version 2.4.18_mvl30-walnut (root at hhl) (gcc version
> 3.2.1 20020930
> IBM Sycamore (IBM405GPr) Platform
> On node 0 totalpages: 16384
> zone(0): 16384 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Kernel command line: root=/dev/ram console=ttyS0,9600n8
> console=tty0
> Memory: 62268k available (512k kernel code, 212k data,
> 32k init, 0k highmem)
> Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
> Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
> Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
> Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> OCP uart ver 1.2 init complete
> Starting kswapd
> Disabling the Out Of Memory Killer
> Serial driver version 5.05c (2001-07-08) with no serial
> options enabled
> ttyS00 at 0x0000 (irq = 0) is a 16550A
> ttyS01 at 0x0000 (irq = 1) is a 16550A
> block: 128 slots per queue, batch=32
> RAMDISK driver initialized: 16 RAM disks of 4096K size
> 1024 blocksize
> Tracer: Initialization complete
> RAMDISK: Compressed image found at block 0
> RAMDISK: incomplete write (ramdisk too small?) (-28 != 32768)
>
>

[U-Boot-Users] u-boot size

[Jerry Walden]

Anyone have and estimate as to how many lines of code
are in u-boot, or about how many person-years it would take
to do it from scratch?

Thanks

Jerry 

[U-Boot-Users] u-boot size

[Robert Schwebel]

On Wed, Mar 26, 2003 at 06:11:03PM -0500, Jerry Walden wrote:
> Anyone have and estimate as to how many lines of code
> are in u-boot, or about how many person-years it would take
> to do it from scratch?

You don't have to estimate: 

robert at metis:~/embedded/cvs/u-boot> find . -type f | xargs cat | wc -l 
 541895

For person years you better ask the Wolfg-Gang...

Robert
-- 
 Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
 Pengutronix - Linux Solutions for Science and Industry
   Braunschweiger Str. 79,  31134 Hildesheim, Germany
   Handelsregister:  Amtsgericht Hildesheim, HRA 2686
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[U-Boot-Users] u-boot size

[Wolfgang Denk]

In message <EGEGIJHKDKJGAJMGIDPNEEDHCKAA.jwalden@digitalatlantic.com> you wrote:
> Anyone have and estimate as to how many lines of code
> are in u-boot, or about how many person-years it would take
> to do it from scratch?

The first part of the question is simple:

If you count all *.S, *.c and *.h files you get: 474537 LOC.

The second part of the question is more difficult.  What  exactly  do
you  mean? How much manpower went into the PPCBoot / U-Boot projects?
How much it would take to do it again,  with  today's  knowledge  and
experience,  but  without  looking at the code? To get exact the same
state, i. e. support for all the 100+ boards?

The project is about 2.5 years old now. I guess (and this is  a  wild
guess)  that  about 25 man years went into the U-Boot / PPCBoot until
now; to redo it from scratch, I guess you'd need 2...5  man-years  if
you could select at your liking from all the developers who worked on
it; if you cannot do this, I think it would take 5...10 man-years.

A wild guess, as I said.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
"If you want to eat hippopatomus, you've got to pay the  freight."  -
attributed to an IBM guy, about why IBM software uses so much memory