[yocto] Memory Tests in U-Boot

[devendra.devadiga at iwavesystems.com]

Hi,

In U-Boot I found some generic memory tests commands like mtest and post 
tests. But I need complete DDR4 memory test with below algorithms:

* Checkerboard Test
* March C- Test
* Neighborhood Pattern Sensitive Fault

Can I get any reference code for these algorithms in U-Boot ?
Implementation for these algorithms available in any of U-Boot version ?

Thanks and Regards,
Devendra