Need help on PPC8343E bringup

Need help on PPC8343E bringup

[Reeve Yang]

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Hello linux-ppc experts,

I'm trying to use using wind river jtag probe to download uboot to our
switching box which is with PPC8343E/Intel 28F128J3D memory flash(16M).
Memory mapping is starting from 0xFF000000 to 0xFFFFFFFF which is 16M. The
JTAG software I'm using is visionclick8.

The problem now is that I even couldn't erash flash, with following error
message:

TF ERASE FFF00000..FFFFFFFF INTEL  28F128Jx ( 8192 x 16 )  1 Device
Erasing Flash(s) ... Failed
!ERROR! - [msg100000] Failed while erasing the device(s)
>BKM>
!HALT! - [msg90009] Target Stopped : CheckStop taken; PC = 0x00007404 [EVENT
Taken]
>BKM>

Does anyone has experiece to bring up this CPU, and could shed some lights
on it? Thank you in advance.

- Reeve

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Re: Need help on PPC8343E bringup

[Michael Galassi]

>Hello linux-ppc experts,
>
>I'm trying to use using wind river jtag probe to download uboot to our
>switching box which is with PPC8343E/Intel 28F128J3D memory flash(16M).
>Memory mapping is starting from 0xFF000000 to 0xFFFFFFFF which is 16M. The
>JTAG software I'm using is visionclick8.
>
>The problem now is that I even couldn't erash flash, with following error
>message:
>
>TF ERASE FFF00000..FFFFFFFF INTEL  28F128Jx ( 8192 x 16 )  1 Device
>Erasing Flash(s) ... Failed
>!ERROR! - [msg100000] Failed while erasing the device(s)
>>BKM>
>!HALT! - [msg90009] Target Stopped : CheckStop taken; PC = 0x00007404 [EVENT
>Taken]
>>BKM>
>
>Does anyone has experiece to bring up this CPU, and could shed some lights
>on it? Thank you in advance.
>
>- Reeve

Your flash part[s] are almost certainly write-protected, or part of them
is.  Get the data-sheet for them and find what combination to write to
them to un-protect them and try again.  For the parts I'm using (micron
MT28F128J3) writing 0x00600060 followed by 0x00d000d0 to the part does
the trick.

-michael

Re: Need help on PPC8343E bringup

[Michael Galassi]

>>Hello linux-ppc experts,
>>
>>I'm trying to use using wind river jtag probe to download uboot to our
>>switching box which is with PPC8343E/Intel 28F128J3D memory flash(16M).
>>Memory mapping is starting from 0xFF000000 to 0xFFFFFFFF which is 16M. The
>>JTAG software I'm using is visionclick8.
>>
>>The problem now is that I even couldn't erash flash, with following error
>>message:
>>
>>TF ERASE FFF00000..FFFFFFFF INTEL  28F128Jx ( 8192 x 16 )  1 Device
>>Erasing Flash(s) ... Failed
>>!ERROR! - [msg100000] Failed while erasing the device(s)
>>>BKM>
>>!HALT! - [msg90009] Target Stopped : CheckStop taken; PC = 0x00007404 [EVENT
>>Taken]
>>>BKM>
>>
>>Does anyone has experiece to bring up this CPU, and could shed some lights
>>on it? Thank you in advance.
>>
>>- Reeve
>
>Your flash part[s] are almost certainly write-protected, or part of them
>is.  Get the data-sheet for them and find what combination to write to
>them to un-protect them and try again.  For the parts I'm using (micron
>MT28F128J3) writing 0x00600060 followed by 0x00d000d0 to the part does
>the trick.
>
>-michael

I must be lonely, responding to my own email :-).

The other option you have is re-build u-boot to run from ram (presumably
at some lower address), then use u-boot itself to clear the write
protect bits on your flash.  U-boot's makefile has config targets for
ram & flash for some target boards which you may be able to take
advantage of.  My first solution is probably still quicker if you're not
trying to debug u-boot itself.

-michael

Re: Need help on PPC8343E bringup

[Reeve Yang]

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Thanks Machael.

On my flash data sheet, there are some command about security:

Lock Block | Block Address | 0060h | Block Address | 0001h
Unlock Block|Block Address| 0060h | Block Address | 00d0h

So I guess it needs two write cycle to perfomr the command, and the unlock
command should be 006000d0. I tried that but still get the same error. Bad!
:(

Another questions is that is there any way to change CPU register directy?
For 8343E all registers are mapped to 1m starting from 0xff400000. I want to
change on 0Xff400c08, but visionclick reject me to write on that address.

- Reeve

On 9/29/06, Michael Galassi <mgalassi@c-cor.com> wrote:
>
>
> >>Hello linux-ppc experts,
> >>
> >>I'm trying to use using wind river jtag probe to download uboot to our
> >>switching box which is with PPC8343E/Intel 28F128J3D memory flash(16M).
> >>Memory mapping is starting from 0xFF000000 to 0xFFFFFFFF which is 16M.
> The
> >>JTAG software I'm using is visionclick8.
> >>
> >>The problem now is that I even couldn't erash flash, with following
> error
> >>message:
> >>
> >>TF ERASE FFF00000..FFFFFFFF INTEL  28F128Jx ( 8192 x 16 )  1 Device
> >>Erasing Flash(s) ... Failed
> >>!ERROR! - [msg100000] Failed while erasing the device(s)
> >>>BKM>
> >>!HALT! - [msg90009] Target Stopped : CheckStop taken; PC = 0x00007404
> [EVENT
> >>Taken]
> >>>BKM>
> >>
> >>Does anyone has experiece to bring up this CPU, and could shed some
> lights
> >>on it? Thank you in advance.
> >>
> >>- Reeve
> >
> >Your flash part[s] are almost certainly write-protected, or part of them
> >is.  Get the data-sheet for them and find what combination to write to
> >them to un-protect them and try again.  For the parts I'm using (micron
> >MT28F128J3) writing 0x00600060 followed by 0x00d000d0 to the part does
> >the trick.
> >
> >-michael
>
> I must be lonely, responding to my own email :-).
>
> The other option you have is re-build u-boot to run from ram (presumably
> at some lower address), then use u-boot itself to clear the write
> protect bits on your flash.  U-boot's makefile has config targets for
> ram & flash for some target boards which you may be able to take
> advantage of.  My first solution is probably still quicker if you're not
> trying to debug u-boot itself.
>
> -michael
>

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Re: Need help on PPC8343E bringup

[Michael Galassi]

>Thanks Machael.
>
>On my flash data sheet, there are some command about security:
>
>Lock Block | Block Address | 0060h | Block Address | 0001h
>Unlock Block|Block Address| 0060h | Block Address | 00d0h
>
>So I guess it needs two write cycle to perfomr the command, and the unlock
>command should be 006000d0. I tried that but still get the same error. Bad!
>:(
>
>Another questions is that is there any way to change CPU register directy?
>For 8343E all registers are mapped to 1m starting from 0xff400000. I want to
>change on 0Xff400c08, but visionclick reject me to write on that address.
>
>- Reeve

Actually no, I made the assumption that you have two 16 bit wide flash
parts, one providing bits 0:15, the other 16:31.  Most PPC projects end
up doing this.  The write 0x00600060 ends up sending a 0x60 to the flash
on the low bits and another 0x60 to the flash part on the high bits.
The second write of 0x00d000d0 likewise sends a single 0xd0 to each
flash part.

If your tool gave you a command called mw which had a usage somewhat
like:
    mw <size> <address> <data>
where size is b/byte, w/word, l/longword you might you might try:
    mw l 0x00600060 0xff000000
    mw l 0x00d000d0 0xff000000
Does that make sense to you?

PS: some people here have nothing better to do than whine about
    top-posting, safe yourself the grief and respond bellow the
    post.
PS: Technicaly this is not a Linux topic, I'm responding here
    because this does turn out to be of general interest.

-michael

RE: Need help on PPC8343E bringup

[Mathews, Phil]

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From: linuxppc-embedded-bounces+phil.mathews=innocon.com@ozlabs.org on behalf of Michael Galassi
Sent: Fri 9/29/2006 6:14 PM
To: Reeve Yang
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: Need help on PPC8343E bringup 
 
>Thanks Machael.
>
>On my flash data sheet, there are some command about security:
>
>Lock Block | Block Address | 0060h | Block Address | 0001h
>Unlock Block|Block Address| 0060h | Block Address | 00d0h
>
>So I guess it needs two write cycle to perfomr the command, and the unlock
>command should be 006000d0. I tried that but still get the same error. Bad!
>:(
>
>Another questions is that is there any way to change CPU register directy?
>For 8343E all registers are mapped to 1m starting from 0xff400000. I want to
>change on 0Xff400c08, but visionclick reject me to write on that address.
>
>- Reeve

Actually no, I made the assumption that you have two 16 bit wide flash
parts, one providing bits 0:15, the other 16:31.  Most PPC projects end
up doing this.  The write 0x00600060 ends up sending a 0x60 to the flash
on the low bits and another 0x60 to the flash part on the high bits.
The second write of 0x00d000d0 likewise sends a single 0xd0 to each
flash part.

If your tool gave you a command called mw which had a usage somewhat
like:
    mw <size> <address> <data>
where size is b/byte, w/word, l/longword you might you might try:
    mw l 0x00600060 0xff000000
    mw l 0x00d000d0 0xff000000
Does that make sense to you?

PS: some people here have nothing better to do than whine about
    top-posting, safe yourself the grief and respond bellow the
    post.
PS: Technicaly this is not a Linux topic, I'm responding here
    because this does turn out to be of general interest.

-michael

Actually the comands should be:
    mw l 0xff000000 0x00600060
    mw l 0xff000000 0x00d000d0


BTW - you don't have to bellow the post, you can just type them quietly :-)
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