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The SDRAM_IDX in DDRSS_V2A_CTL_REG describes the number of address bits minus 16 that are used to determine the mask used to detect memory rollover and prevent aliasing and false coherency issues. Set SDRAM_IDX using the device private data, ddr_ram_size for K3 family of SoCs. Signed-off-by: Santhosh Kumar K <s-k6@ti.com> Reviewed-by: Neha Malcom Francis <n-francis@ti.com>