reboot fail when using nandflash

Ivan Tonchev itonchev at mm-sol.com
Mon Mar 5 23:50:13 CST 2007


Hi Steve,

Could you at least share what's the essence of your workaround? Do you
program PSC before trying to configure DDRC? This is what I do.

Ivan

Steve Yeh wrote:
> Hi,
>
> Our embedded engineer has solved reboot problem by modifying UBL code.
> I am sorry that i am not allowed to share this part.
>
> Steve
>
>
>
> 2007/3/5, Ivan Tonchev <itonchev at mm-sol.com>:
>>
>>  Hi Steve,
>>
>> I reproduced your soft reset problem on our boards and on evm.
>>
>> In the mean time TI provided us UBL source code, so I did some patching.
>> I
>> implemented workarounds for both soft reset and STM NAND flash. Code
>> works
>> OK at least for me. I submitted patches to Roger.
>>
>> Ivan
>>
>> Steve Yeh wrote:
>>
>> Hi Roger,
>>
>> This situation is happened on standard evm and it works fine when using
>> NOR boot.
>> We use the kernel from dvevm 1.10 but elder u-boot.
>>
>> Currently, we manufacture our own board and use STM flash.
>> So we face the same problem as Ivan faced. The flashwriter from TI can
>> not
>> work on our flash.
>> Our hardware engineer is working on this issue now.
>>
>> Steve
>>
>>
>>
>> 2007/3/2, Monk, Roger < r-monk at ti.com>:
>> >
>> >  Steve â&#65533;&#65533; some more questions to help us track this
down :-
>> >
>> >
>> >
>> > Is this on standard evm or custom hardware?
>> >
>> > Which version of Uboot are you using? â&#65533;&#65533; Is it the
latest from the ti
>> > extranet?
>> >
>> > Which version of linux kernel? â&#65533;&#65533; the one that comes
with dvevm
>> v1.10?
>> >
>> > Does reboot work successfully from NOR or is it also failing from NOR?
>> >
>> > Does reboot work successfully when using the MV filesystem, rather
>> than
>> > your ramdisk?
>> >
>> >
>> >
>> > ~roger
>> >  ------------------------------
>> >
>> > *From:* davinci-linux-open-source-bounces at linux.davincidsp.com
>> [mailto:
>> > davinci-linux-open-source-bounces at linux.davincidsp.com] *On Behalf Of
>> *Steve
>> > Yeh
>> > *Sent:* 02 March 2007 10:41
>> > *To:* davinci-linux-open-source at linux.davincidsp.com
>> > *Subject:* reboot fail when using nandflash
>> >
>> >
>> >
>> > Hi,
>> >
>> > Does anybody face the following problem? Any comment?
>> >
>> > Thanks a lot.
>> >
>> > Steve
>> >
>> >
>> >   I storage kernel and ramdisk on nandflash and boot evm form it, but
>> I
>> > can't reboot my system by submit "shutdown â&#65533;&#65533;f
â&#65533;&#65533;r now" or "halt -f"
>> both and
>> > system will show "system is reboot now" or "Booting PSP Boot Loader"
>> and
>> > then no any response. As I know, "Booting PSP Boot Loader" was printed
>> by
>> > boot loader, but I don't know why it's not go on. Any commands?
>> >
>> > P.S "halt" and "shutdown" were copy form evm hard disk (under /sbin)
>> not
>> > soft link to busybox, any I copy all /etc form evm hard disk to my
>> ramdisk.
>> >
>>
>> ------------------------------
>>
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>>
>>
>



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