CONFIG_HAVE_TCM is not available for thedefaultarchitecture x86.
Result is shown for architecture csky

Tightly-Coupled/Sram Memory

modulename:  tcm.ko



configname: CONFIG_HAVE_TCM

Linux Kernel Configuration
└─>Processor type and features
└─>Tightly-Coupled/Sram Memory
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
The implementation are not only used by TCM (Tightly-Coupled Meory)
but also used by sram on SOC bus. It follow existed linux tcm
software interface, so that old tcm application codes could be
re-used directly.

source code: