RE: Basic question: how to flash omap system with ccs?

RE: Basic question: how to flash omap system with ccs?

[Kipisz, Steven]

CCS 3.1 supports ELF file formats, which is the same format as the
u-boot executable.  You should be able to use a CCS gel file to
configure SDRAM, peripherals, etc. so that CCS can load u-boot into
SDRAM and run it.  Once u-boot is running, you download u-boot.bin and
write it to flash.  If anybody has a gel file for a 5912, he/she could
probably send it to you.  I've don't this with other OMAP platforms.

The SRAM option sounds interesting.  You could probably build u-boot for
SDRAM (the normal build) and save the binary file as something like
u-boot-sdram.bin.  Then build a SRAM version - look at
u-boot/board/omap5912osk/config.mk.  The TEXT_BASE value is where u-boot
will load.  Change this to a SRAM area, rebuild u-boot, and use CCS to
download the ELF format u-boot.  Once that is running in SRAM, download
and flash the SDRAM version .bin file.  I've never tried this, but it
sounds like it might work, assuming the binary image and the executing
image fit into the 250k SRAM.

Steve K.

-----Original Message-----
From: linux-omap-open-source-bounces@linux.omap.com
[mailto:linux-omap-open-source-bounces@linux.omap.com] On Behalf Of Olav
Kongas
Sent: Sunday, November 27, 2005 3:55 PM
To: Li Weichen
Cc: linux-omap-open-source@linux.omap.com
Subject: Re: Basic question: how to flash omap system with ccs?



On Sun, 27 Nov 2005, Li Weichen wrote:

> Hi all,
> 
> I have an TI XDS560 emulator and CCS 3.1 by hand.  Can I load the
> bootloader, kernel and file system with them?  I have never used CCS
before,
> so I eagerly hope someone could show me the steps or where I can find
the
> answer.

I'm right now working on the same problem. I'm using XDS510 
if that matters. The aim is to transfer u-boot to omap5912's 
SRAM and then burn it into the virgin onboard flash of our 
custom board. I plan to transfer kernel and the rest later 
when already booted up from u-boot.

Initially I started to modify u-boot so that it could run in 
SRAM, with jtag connected, so that I could use u-boot 
functionality to burn itself into flash. However, it turned 
out more and more changes to u-boot were needed so I decided 
to whip up a little custom flash programmer for that.

The scheme is the following: the u-boot image will be 
appended to the flash programmer image, the result will be 
converted to the TI's COFF format and transferred from CCS 
over jtag to omap's SRAM, where the programmer will be 
started.

I have CCS and jtag emulator working. I really recommend to 
carefully read the instructions at Spectrum Digital's 
webpage on how to set it all correctly up. I have written a 
little COFF header generator to convert raw images into TI's 
COFF; that's the format the CCS agrees to load over jtag. If 
you want the tool just let me know. Currently I am working 
on the flash programmer. 

Olav

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RE: Basic question: how to flash omap system with ccs?

[Li Weichen]

Hi Steven,

Thank you for your reply.  But I cannot find how to download a file to the
board in CCS since I am quite unfamiliar with this software.  Could you
please be so kind to show me?  

Thanks and best regards!


Li Weichen
2005-11-28
> -----Original Message-----
> From: Kipisz, Steven [mailto:s-kipisz2@ti.com]
> Sent: Monday, November 28, 2005 9:20 PM
> To: Olav Kongas; Li Weichen
> Cc: linux-omap-open-source@linux.omap.com
> Subject: RE: Basic question: how to flash omap system with ccs?
> 
> CCS 3.1 supports ELF file formats, which is the same format as the
> u-boot executable.  You should be able to use a CCS gel file to
> configure SDRAM, peripherals, etc. so that CCS can load u-boot into
> SDRAM and run it.  Once u-boot is running, you download u-boot.bin and
> write it to flash.  If anybody has a gel file for a 5912, he/she could
> probably send it to you.  I've don't this with other OMAP platforms.
> 
> The SRAM option sounds interesting.  You could probably build u-boot for
> SDRAM (the normal build) and save the binary file as something like
> u-boot-sdram.bin.  Then build a SRAM version - look at
> u-boot/board/omap5912osk/config.mk.  The TEXT_BASE value is where u-boot
> will load.  Change this to a SRAM area, rebuild u-boot, and use CCS to
> download the ELF format u-boot.  Once that is running in SRAM, download
> and flash the SDRAM version .bin file.  I've never tried this, but it
> sounds like it might work, assuming the binary image and the executing
> image fit into the 250k SRAM.
> 
> Steve K.
> 
> -----Original Message-----
> From: linux-omap-open-source-bounces@linux.omap.com
> [mailto:linux-omap-open-source-bounces@linux.omap.com] On Behalf Of Olav
> Kongas
> Sent: Sunday, November 27, 2005 3:55 PM
> To: Li Weichen
> Cc: linux-omap-open-source@linux.omap.com
> Subject: Re: Basic question: how to flash omap system with ccs?
> 
> 
> 
> On Sun, 27 Nov 2005, Li Weichen wrote:
> 
> > Hi all,
> >
> > I have an TI XDS560 emulator and CCS 3.1 by hand.  Can I load the
> > bootloader, kernel and file system with them?  I have never used CCS
> before,
> > so I eagerly hope someone could show me the steps or where I can find
> the
> > answer.
> 
> I'm right now working on the same problem. I'm using XDS510
> if that matters. The aim is to transfer u-boot to omap5912's
> SRAM and then burn it into the virgin onboard flash of our
> custom board. I plan to transfer kernel and the rest later
> when already booted up from u-boot.
> 
> Initially I started to modify u-boot so that it could run in
> SRAM, with jtag connected, so that I could use u-boot
> functionality to burn itself into flash. However, it turned
> out more and more changes to u-boot were needed so I decided
> to whip up a little custom flash programmer for that.
> 
> The scheme is the following: the u-boot image will be
> appended to the flash programmer image, the result will be
> converted to the TI's COFF format and transferred from CCS
> over jtag to omap's SRAM, where the programmer will be
> started.
> 
> I have CCS and jtag emulator working. I really recommend to
> carefully read the instructions at Spectrum Digital's
> webpage on how to set it all correctly up. I have written a
> little COFF header generator to convert raw images into TI's
> COFF; that's the format the CCS agrees to load over jtag. If
> you want the tool just let me know. Currently I am working
> on the flash programmer.
> 
> Olav
> 
> _______________________________________________
> Linux-omap-open-source mailing list
> Linux-omap-open-source@linux.omap.com
> http://linux.omap.com/mailman/listinfo/linux-omap-open-source

is the OMAP5912 support boot by NAND flash?

[andy]

Dear all,

Is the OMAP5912 support boot by NAND flash , Please ？

Best Regards
Andy Lu

RE: is the OMAP5912 support boot by NAND flash?

[Kyungmin Park]

Hi

> Is the OMAP5912 support boot by NAND flash , Please ？
> 

Since OMAP5912 don't have a NAND or OneNAND flash, we need some daughter
board,

First check the following URL.

http://source.mvista.com/git/gitweb.cgi?p=xloader.git;a=log

Now OMAP5912 can boot with OneNAND instead of NAND

But IMHO It can also boot with NAND.

Regards

Kyungmin Park

RE: is the OMAP5912 support boot by NAND flash?

[andy]

Dear Kyungmin,

Did you mean that I can use NOR interface and configure to NAND protocol?

Best Regards
Andy Lu

-----Original Message-----
From: Kyungmin Park [mailto:kyungmin.park@samsung.com] 
Sent: Tuesday, November 29, 2005 7:59 AM
To: 'andy'; linux-omap-open-source@linux.omap.com
Subject: RE: is the OMAP5912 support boot by NAND flash?

Hi

> Is the OMAP5912 support boot by NAND flash , Please ？
> 

Since OMAP5912 don't have a NAND or OneNAND flash, we need some daughter
board,

First check the following URL.

http://source.mvista.com/git/gitweb.cgi?p=xloader.git;a=log

Now OMAP5912 can boot with OneNAND instead of NAND

But IMHO It can also boot with NAND.

Regards

Kyungmin Park

RE: is the OMAP5912 support boot by NAND flash?

[Kyungmin Park]

 

> 
> Did you mean that I can use NOR interface and configure to 
> NAND protocol?

No. NAND can't use NOR interface.
That for OneNAND which has NOR interface with NAND core

You can also refer to http://linux.omap.com/pub/xloader/source/

The old version has NAND boot on omap730 
But I'm not sure it's code is working?

Thank you

Kyungmin Park

RE: is the OMAP5912 support boot by NAND flash?

[andy]

Dear Kyungmin,

As TRM said, we can configure to Address/data multiplexed
Mode for EMIF port, so I think we can use NOR interface,
Do you think so?

Best Regards
Andy Lu

-----Original Message-----
From: Kyungmin Park [mailto:kyungmin.park@samsung.com] 
Sent: Tuesday, November 29, 2005 10:14 AM
To: 'andy'; linux-omap-open-source@linux.omap.com
Subject: RE: is the OMAP5912 support boot by NAND flash?

 

> 
> Did you mean that I can use NOR interface and configure to 
> NAND protocol?

No. NAND can't use NOR interface.
That for OneNAND which has NOR interface with NAND core

You can also refer to http://linux.omap.com/pub/xloader/source/

The old version has NAND boot on omap730 
But I'm not sure it's code is working?

Thank you

Kyungmin Park

RE: is the OMAP5912 support boot by NAND flash?

[Kyungmin Park]

> 
> As TRM said, we can configure to Address/data multiplexed
> Mode for EMIF port, so I think we can use NOR interface,
> Do you think so?
> 

Maybe you mean NOR interface is EMIFS, yes, NAND can use EMIFS
we also tested NAND on OMAP5912 but not tested NAND booting.

Regards

Kyungmin Park

RE: is the OMAP5912 support boot by NAND flash?

[andy]

Good , I will try it later.

Thank you very much!!

Best Regards
Andy Lu

-----Original Message-----
From: Kyungmin Park [mailto:kyungmin.park@samsung.com] 
Sent: Tuesday, November 29, 2005 10:42 AM
To: 'andy'; linux-omap-open-source@linux.omap.com
Subject: RE: is the OMAP5912 support boot by NAND flash?

> 
> As TRM said, we can configure to Address/data multiplexed
> Mode for EMIF port, so I think we can use NOR interface,
> Do you think so?
> 

Maybe you mean NOR interface is EMIFS, yes, NAND can use EMIFS
we also tested NAND on OMAP5912 but not tested NAND booting.

Regards

Kyungmin Park

RE: Basic question: how to flash omap system with ccs?

[Olav Kongas]

Hi Steven,

On Mon, 28 Nov 2005, Kipisz, Steven wrote:

> CCS 3.1 supports ELF file formats, which is the same format as the
> u-boot executable.  You should be able to use a CCS gel file to
> configure SDRAM, peripherals, etc. so that CCS can load u-boot into
> SDRAM and run it.  Once u-boot is running, you download u-boot.bin and
> write it to flash.  If anybody has a gel file for a 5912, he/she could
> probably send it to you.  I've don't this with other OMAP platforms.

I did not know about ELF format support. Thanks.  Knowing 
that would have saved me a half day.

I'll look into the gel files to see, whether setting up the 
EMIFS for my flash (if I need to do this at all) is easier 
in gel files than in my flash programmer. Though, I really 
prefer the situation, where just calling 'make' would build 
me an image (COFF or ELF) that can be directly loaded also 
by future versions of CCS without the need to hack gel 
files.

> The SRAM option sounds interesting.  You could probably build u-boot for
> SDRAM (the normal build) and save the binary file as something like
> u-boot-sdram.bin.  Then build a SRAM version - look at
> u-boot/board/omap5912osk/config.mk.  The TEXT_BASE value is where u-boot
> will load.  Change this to a SRAM area, rebuild u-boot, and use CCS to
> download the ELF format u-boot.  Once that is running in SRAM, download
> and flash the SDRAM version .bin file.  I've never tried this, but it
> sounds like it might work, assuming the binary image and the executing
> image fit into the 250k SRAM.

I tried converting u-boot to run from SRAM. I managed to 
change the relevant bits like TEXT_BASE, stack location, 
heap size, etc. But when u-boot, already running in SRAM, 
changed SoC's clocks then my jtag started to report "cannot 
halt processor" or the like. Is my jtag connection fragile 
or what, but I decided to minimize the dependence on it and 
go with a dedicated, tiny, non-time-critical flash 
programmer.

For omap5912, I don't see a reason of initializing sdram in 
the flash burning phase at all. Even if one would burn with 
an sram-specific u-boot (instead of a dedicated flash 
programmer), both sram-specific and sdram-specific u-boot 
images should fit simultaneously into the 250k of sram. For 
SoC's with smaller srams it may be necessary, however.

Thanks a lot for the info,
Olav