- cm32m4xxr flash driver is for cm32m4xxr devices
- nuspi flash driver is for nuclei evalsoc devices
- custom flash driver is for customized flash driver
without modify openocd source code, see https://github.com/riscv-mcu/openflashloader
Change-Id: I86c4f0298707b5cfdfb77b6d8f4cbed3a189ddf0
Signed-off-by: wangyanwen <wangyanwen@nucleisys.com>
wangyanwen