Hi,
[quote]
How about internal loopback test mentioned in this document (http://www.ti.com/lit/ug/sprufh1b/sprufh1b.pdf ) in section 2.10?
[/quote]
This is internal loop back test and not h/w loop back,
You have to configure the SPI as a master then enable loop back mode through "LOOPBACK" bit of SPIGCR1 reg.
To achieve this, You may have to write a driver. (Refer : drivers/spi/spi-davinci.c)
The below link one is for external h/w loopback.
http://communistcode.co.uk/blog/blogPost.php?blogPostID=1
drivers/spi/spidev.c
This is the h/w loopback test with all platform changes but the above internal loopback wont look into the platform
code changes.
Do you have any TI's DM3xx EVM with you?
[quote]
Also can you give some inputs for enabling the FRAM support in linux?
[/quote]
I have searched in internet and not finding any linux driver support,
Try to enable in u-boot & try to access the memory to confirm that h/w works perfect.
Just contact your FRAM supplier to know the avail linux support,