omap4460 ROM API?

Hi John,

Information about OMAP ROM code is available in Chapter 27 Initialization in OMAP4460 TRM.

Sections 27.4 Device Initialization by ROM Code & Section 27.5 Services for HLOS Support.

Additional information is presented in omappedia: http://www.omappedia.com/wiki/Bootloader_Project

Best Regards,

Yordan

Hi Yordan,

   Thanks for your response!

    But I can not find ROM functions detail information, like how to call ROM functions? what functions are in ROM?

John

John,

ROM Code is programmed into the OMAP during manufacturing process and cannot be modified or accessed externally. See the following threads that relate to your question:

http://e2e.ti.com/support/omap/f/849/t/206938.aspx

http://e2e.ti.com/support/omap/f/849/t/108130.aspx

Best Regards,

Yordan

Hi Yordan,

    I don't want to modify the ROM code, I just want to re-use the code, in the USBBOOT project, it re-used the ROM API

but it has not detail info, like how to set parameters,the return of API.

  Best Regards

John

Hi John,

As I said the ROM code is not accessible (as it is clarified in http://e2e.ti.com/support/omap/f/849/t/206938.aspx). It is configured during manufacturing, and the user cannot read/modify it.

I am not aware of the existence of ROM API. The only available information about ROM Code, that is presented to the users, is what is described in the TRM.

However, if I am mistaken, and such API and a document describing its functions exist, you need to contact a TI sales representative to obtain it.

Best Regards,

Yordan

Hi John,

I got feedback from the OMAP TRM team that there is indeed such ROM Code api, but its documentation, as I said in the above post, is under NDA agreement.

Best Regards,

Yordan