Replace CONFIG_ICACHE with a Kconfig option more limited in scope - XILINX_MICROBLAZE0_USE_WIC. It should be enabled if the processor supports the "wic" (Write to Instruction Cache) instruction. It will be used to guard "wic" invocations in microblaze cache code. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-6-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>