sysbios bootloader---using u-boot to load sysbios image on dm8168 and AM3352

Lusheng zhang

Intellectual 440 points

Other Parts Discussed in Thread: SYSBIOS, AM3352

I want to load sysbios image by u-boot. Now u-boot is done. The sysbios with emulator is also done.

Now I face some questions:

How can u-boot load the real code/data into ddr, move data section and clear bss section?

How to place the .text __int00 at an explicit address and then jump to __int00?

Exepte u-boot, do we have anothe choice?

Platform dm8168 and am3352.

sysbios verison: bios_6_33_05_46

xdc version: xdctools_3_23_03_53

Thansks a lot

over 13 years ago

0 Steven Connell over 13 years ago

TI__Mastermind 45025 points

Hi Lusheng zhang,

I found this wiki page ... does this help you?

Also this related thread.

And this.

Steve

0 Lusheng zhang over 13 years ago in reply to Steven Connell

Intellectual 440 points

HI Quote,

I cannot find the anwser in your link.

The most important question is: How to place the .text __int00 at an explicit address?

The second is: How can u-boot load the real code/data into ddr, move data section and clear bss section? How does u-boot get the load addres and run address of sections(code data and bss).

Note: sysbios verison: bios_6_33_05_46 xdc version: xdctools_3_23_03_53; __int00 is written in asm.

Thanks a lot.

0 David Friedland over 13 years ago in reply to Lusheng zhang

TI__Mastermind 18320 points

Lusheng,

My guess is that you will not find many posters that will answer U-Boot related questions on this forum. One suggestions is to try the U-Boot info page: http://lists.denx.de/mailman/listinfo/u-boot.

0 Lusheng zhang over 13 years ago in reply to David Friedland

Intellectual 440 points

OK.

The only question is:

How to place the .text __int00 at an explicit address?

sysbios version 6.33

0 Whitney Dewey over 13 years ago in reply to Lusheng zhang

TI__Guru 54875 points

Hello,

Here's a link to a wiki article that should help you.

http://processors.wiki.ti.com/index.php/SYS/BIOS_FAQs#3_Placing_SYS.2FBIOS_code_in_different_memory_segments

There's also a section on this in the Memory chapter of the SYS/BIOS UG.

Whitney

Processors

Processors forum

sysbios bootloader---using u-boot to load sysbios image on dm8168 and AM3352