[ECOS] [redboot] POST (power on self test)

[ECOS] [redboot] POST (power on self test)

[alysson brito]

Hi there

1. Would any one know how POST work on redboot (I really have go no
clue and could not found it on any document/mail)?

2. Is there any POST code already made ?
As uboot has. I "grep" the code and only found unit tests for the code itself.

3. Where my post code should go. Should I call it from the bist() ?
I do not reeally know whether u make any diferentiation between BIST and POST.
I "grep" the code and found out bist()that redboot has post. By I just
founded out the
        packages/redboot/current/src/main.c
bist() been called from cyg_start()


Thanks in advance for any help

-- Alysson
"You are not thinking. You are merely being logical." - Neils Bohr

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RE: [ECOS] [redboot] POST (power on self test)

[Chris Zimman]

POST == Power On Self Test
BIST == Built In Selt Test

They are basically equivalent, so yes, you should put your POST code in
bist().

--Chris

-----Original Message-----
From: ecos-discuss-owner@ecos.sourceware.org
[mailto:ecos-discuss-owner@ecos.sourceware.org] On Behalf Of alysson
brito
Sent: 04 May 2007 13:33
To: ecos-discuss@ecos.sourceware.org
Subject: [ECOS] [redboot] POST (power on self test)

Hi there

1. Would any one know how POST work on redboot (I really have go no
clue and could not found it on any document/mail)?

2. Is there any POST code already made ?
As uboot has. I "grep" the code and only found unit tests for the code
itself.

3. Where my post code should go. Should I call it from the bist() ?
I do not reeally know whether u make any diferentiation between BIST and
POST.
I "grep" the code and found out bist()that redboot has post. By I just
founded out the
        packages/redboot/current/src/main.c
bist() been called from cyg_start()


Thanks in advance for any help

-- Alysson
"You are not thinking. You are merely being logical." - Neils Bohr

-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss

--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss

Re: [ECOS] [redboot] POST (power on self test)

[alysson brito]

Thanks Chris.

I have a start point on this now!

Then that is it or do I need kind of any "post image" ? Would this be
another kind of image such as RAM, ROM, etc ?

I also get to the component CYGOPT_REDBOOT_FIS_REDBOOT_POST. Should I
enable it ?

I am not sure how this all fit in together :/

-- Alysson
 "You are not thinking. You are merely being logical." - Neils Bohr


On 5/4/07, Chris Zimman <czimman@bloomberg.com> wrote:
> POST == Power On Self Test
> BIST == Built In Selt Test
>
> They are basically equivalent, so yes, you should put your POST code in
> bist().
>
> --Chris
>
> -----Original Message-----
> From: ecos-discuss-owner@ecos.sourceware.org
> [mailto:ecos-discuss-owner@ecos.sourceware.org] On Behalf Of alysson
> brito
> Sent: 04 May 2007 13:33
> To: ecos-discuss@ecos.sourceware.org
> Subject: [ECOS] [redboot] POST (power on self test)
>
> Hi there
>
> 1. Would any one know how POST work on redboot (I really have go no
> clue and could not found it on any document/mail)?
>
> 2. Is there any POST code already made ?
> As uboot has. I "grep" the code and only found unit tests for the code
> itself.
>
> 3. Where my post code should go. Should I call it from the bist() ?
> I do not reeally know whether u make any diferentiation between BIST and
> POST.
> I "grep" the code and found out bist()that redboot has post. By I just
> founded out the
>        packages/redboot/current/src/main.c
> bist() been called from cyg_start()
>
>
> Thanks in advance for any help
>
> -- Alysson
> "You are not thinking. You are merely being logical." - Neils Bohr
>
> --
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
>

-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss

RE: [ECOS] [redboot] POST (power on self test)

[Chris Zimman]

Alysson,

No, you can put whatever POST routines you need right inside of Redboot.  In order to keep things simple for now, I would see if you can get done what you need to get done inside of bist().  If you have a sufficiently complex POST routine that needs things Redboot doesn't provide (eg. threads, interrupts, etc) then I guess you can consider an external image.  Most POSTs that I have ever seen don't require this sort of thing.

You probably do not need CYGOPT_REDBOOT_FIS_REDBOOT_POST for now.

--Chris

-----Original Message-----
From: alysson brito [mailto:alysson.alysson@gmail.com] 
Sent: Friday, May 04, 2007 9:16 PM
To: ecos-discuss@ecos.sourceware.org; Chris Zimman
Subject: Re: [ECOS] [redboot] POST (power on self test)

Thanks Chris.

I have a start point on this now!

Then that is it or do I need kind of any "post image" ? Would this be
another kind of image such as RAM, ROM, etc ?

I also get to the component CYGOPT_REDBOOT_FIS_REDBOOT_POST. Should I
enable it ?

I am not sure how this all fit in together :/

-- Alysson
 "You are not thinking. You are merely being logical." - Neils Bohr


On 5/4/07, Chris Zimman <czimman@bloomberg.com> wrote:
> POST == Power On Self Test
> BIST == Built In Selt Test
>
> They are basically equivalent, so yes, you should put your POST code in
> bist().
>
> --Chris
>
> -----Original Message-----
> From: ecos-discuss-owner@ecos.sourceware.org
> [mailto:ecos-discuss-owner@ecos.sourceware.org] On Behalf Of alysson
> brito
> Sent: 04 May 2007 13:33
> To: ecos-discuss@ecos.sourceware.org
> Subject: [ECOS] [redboot] POST (power on self test)
>
> Hi there
>
> 1. Would any one know how POST work on redboot (I really have go no
> clue and could not found it on any document/mail)?
>
> 2. Is there any POST code already made ?
> As uboot has. I "grep" the code and only found unit tests for the code
> itself.
>
> 3. Where my post code should go. Should I call it from the bist() ?
> I do not reeally know whether u make any diferentiation between BIST and
> POST.
> I "grep" the code and found out bist()that redboot has post. By I just
> founded out the
>        packages/redboot/current/src/main.c
> bist() been called from cyg_start()
>
>
> Thanks in advance for any help
>
> -- Alysson
> "You are not thinking. You are merely being logical." - Neils Bohr
>
> --
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
>

--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss