Enabling caches on OMAP L137 without DSP/BIOS API

Christof Kerschbaumer

Other Parts Discussed in Thread: SYSBIOS

Hello,

I am using an OMAP L137 system.
I would like to enable L1 Data and L2 Caches because i'm doing image processing and have to use external memory.

As far as i have found out the CSL is not available for this Processor.
Unfortunatly i'm using the C6Run toolchain to develop my application, so i can't make use of the DSP/BIOS APIs to alter cache registers.

Is there any way to enable the cache using something similar to the CSL or do i have to set every register manually?

over 13 years ago

0 Mukul Bhatnagar over 13 years ago

TI__Guru* 83965 points

I recommend looking at

http://processors.wiki.ti.com/index.php/QuickStartOMAPL1x_rCSL

The CACHE_dspLib_fft example should help.

Regards

Mukul

0 Christof Kerschbaumer over 13 years ago in reply to Mukul Bhatnagar

Prodigy 60 points

Thanks for the quick answer!

As I am running an embedded linux version on my OMAP i use the Syslink module and found out that when i load the linux kernelmodules the Caches get already initialized.

I will refere to your suggestion in the case i have to modify cache settings during runtime

Thanks for your time

Christof

0 Daniel Allred over 13 years ago in reply to Christof Kerschbaumer

TI__Genius 17355 points

For future reference, while you can configure the cache settings at run-time (using the method suggested or directly writing to the cache control registers), the platform definition does contain the cache settings. For SysBios/SysLink builds, the platform.bld file contains the cache settings. For DSP/BIOS+DSPLink builds, the platform.tci file contains the cache settings.

Regards, Daniel

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Enabling caches on OMAP L137 without DSP/BIOS API