Need help booting linux on my 8265 board

Need help booting linux on my 8265 board

[liuming]

Hi,
  I have problem booting linux on my 8265 board. Both u-boot and ppcboot
run well, but when I boot the linux kernel, the board be dead. At this
time the registers look like to be some default values(use powertap
pro). I try u-boot1.1, ppcboot1.1.5; linux kernel 2.4.4 2.4.18 2.4.20.

(1)about compile kernel
vim Makefile,        arch=ppc CROSS_COMPILE=ppc_82xx-
vim arch/ppc/platforms/ads826x.h,      IMAP_ADDR=0x04700000 BCSR=0x04500000

then make mrproper/ make ads826x_config/ make oldconfig/ make dep/ make
pImage (bd info struct is quite same between uboot and linux)

Is there anything I had ignored?

(2)let's see!(I add some "printf" to display values,
"console=ttyS0,9600" is added)
=> bootm ffa00000 ffc00000
## Booting image at ffa00000 ...
   Image Name:   Linux-2.4.20-pre7ncsd1
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    634729 Bytes = 619 kB = 0 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
## Current stack ends at 0x03F7FC48 => set upper limit to 0x00800000
## cmdline at 0x007FFF00 ... 0x007FFF23
memstart    = 0x00000000
memsize     = 0x04000000
flashstart  = 0xFF800000
flashsize   = 0x00800000
flashoffset = 0x00000000
sramstart   = 0x00000000
sramsize    = 0x00000000
immr_base   = 0x04700000
bootflags   = 0x00000001
vco         = 266.666 MHz
sccfreq     = 66.666 MHz
brgfreq     = 16.666 MHz
intfreq     = 166.666 MHz
cpmfreq     = 133.333 MHz
busfreq     = 33.333 MHz
ethaddr     = 00:10:EC:00:30:8C
IP addr     = 8.6.0.1
baudrate    =   9600 bps
## Loading RAMDisk Image at ffc00000 ...
   Image Name:   Simple Ramdisk-Image
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    567988 Bytes = 554 kB = 0 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
## initrd at 0xFFC00040 ... 0xFFC8AAF3 (len=567988=0x8AAB4)
   Loading Ramdisk to 03ef4000, end 03f7eab4 ... OK
## Transferring control to Linux (at address 00000000) ...

then the board is dead and the LED(FCC link) coruscate . (I have
modified clock calculations for this board so SCC can output message.
it's the reason?) any ideas? thanks a lot!

--
liu
lm_mailbox@sohu.com

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Re: Need help booting linux on my 8265 board

[Wolfgang Denk]

In message <000f01c42562$d3713150$a81e1aac@liuming> you wrote:
>
>   I have problem booting linux on my 8265 board. Both u-boot and ppcboot
> run well, but when I boot the linux kernel, the board be dead. At this
> time the registers look like to be some default values(use powertap
> pro). I try u-boot1.1, ppcboot1.1.5; linux kernel 2.4.4 2.4.18 2.4.20.

I have already answered your questions on the U-Boot users mailing list.

Why didn't you read my message?

> (1)about compile kernel
> vim Makefile,        arch=ppc CROSS_COMPILE=ppc_82xx-
> vim arch/ppc/platforms/ads826x.h,      IMAP_ADDR=0x04700000 BCSR=0x04500000

Your memory map is broken; this cannot work.


Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
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@cygnus.com>

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request: PPC embedded board for DivX/MPEG-4

[Matevz Langus]

Hi,

Does anybody here have/produce an embedded PowerPC board which is
capable (enough CPU power) of decoding DivX/MPEG-4 movies and has
possibility to connect display or at least graphics chip.

thanks,
  Matevz Langus

p.s. Please reply directly to me in order not to disturb the list too
much.


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U-Boot Problem (MPC8260)

[Ashish R Dhawane]

Hi,
I am newbie to the Linux Porting. I am having a mpc8260 board(custom
made). I am trying to configure the cogent mpc8260 board. For a testing
purpose, I am running U-Boot in the SDRAM area, but not from the
flash. I am getting the following error messages. Any help will
appreciated.

OutPut which is captured on minicom is as follows:
--------------------------------------------------

U-Boot Version 2.0.0p

U-Boot V 2.0.0lw

MPC8260 Reset Status:

MPC8260 Clock Configuration
 - Bus-to-Core Mult 3x, VCO Div 2, 60x Bus Freq  33-100, Core Freq 100-300
 - dfbrg 0, corecnf 0x08, busdf 4, cpmdf 1, plldf 1, pllmf 4
 - vco_out  333333330, scc_clk   83333332, brg_clk   83333332
 - cpu_clk  199999998, cpm_clk  166666665, bus_clk   66666666

CPU:   MPC8260 (Rev 14, Mask B.1 4K25A) at 199.999 MHz
Board: Cogent CMA111 motherboard with a CMA282 CPU Module
DIPSW: |off|off|off|off|off|off|off|off|
DRAM:  32 MB
Top of RAM usable for U-Boot at: 02000000
Reserving 128k for U-Boot at: 01fdf000
Reserving 144k for malloc() at: 01fbb000
Reserving 76 Bytes for Board Info at: 01fbafb4
Reserving 68 Bytes for Global Data at: 01fbaf70
Stack Pointer at: 01fbaf58
New Stack Pointer is: 01fbaf58
Now running in RAM - U-Boot at: 01fdf000
FLASH: *** failed ***
### ERROR ### Please RESET the board ###

regards,
-Ashish

###########################################################################
Ashish R Dhawane
Senior Research Engineer
W-CDMA Group (3G RAN)

Contacts:
---------
Tel(O)	   :+91-80-2282168 (Direct Line)
Tel(O/Lab) :+91-80-2263399 X 329
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Mobile	   :98455 36814
E-Mail(s)  :ashishdhawane@yahoo.com, ashish@cyberspace.org

Surface Address (O):			Surface Address (R):
--------------------			--------------------
Centre for Development of Telematics,	#50, Ground Floor, 12th Cross,
71/1, Sneha Complex, 			Ayyappa Block, Manorayan Palya,
Millers Road,				Sultan Palya Main Road,
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###########################################################################


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Re: U-Boot Problem (MPC8260)

[Wolfgang Denk]

In message <Pine.OSF.4.21.0404211715180.5736-100000@ws9.cdotb.ernet.in> you wrote:
>
> I am newbie to the Linux Porting. I am having a mpc8260 board(custom
> made). I am trying to configure the cogent mpc8260 board. For a testing

If you have custom hardware, you cannot use the configuration for the
Cogent board. Each board needs special adaptions and configuration.

> purpose, I am running U-Boot in the SDRAM area, but not from the

Why do you do this? If you have read the U-Boot mailing list archives
(You DID read he archives before posting, didn't you???)  you  should
have  learned  that  this  is  not  as  trivial  as it may seem. It's
defintely not an option if you don't know EXACTLY what you are doing.

> flash. I am getting the following error messages. Any help will
> appreciated.
...
> FLASH: *** failed ***
> ### ERROR ### Please RESET the board ###

Well, you ran into an error, obviously because the  flash  memory  on
your  hardware  is  different  from  the  configuration on the Cogent
board.


And bythe way: please post such questions to the U-Boot-users mailing
list instead; they are off topic here.

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Don't tell me how hard you work.  Tell me how much you get done.
- James J. Ling

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