DF_DRAM_BASE_LIMIT_LSB
dram_limit_addr <<= DF_DRAM_BASE_LIMIT_LSB;
dram_limit_addr |= GENMASK(DF_DRAM_BASE_LIMIT_LSB - 1, 0);
return base_addr << DF_DRAM_BASE_LIMIT_LSB;
u8 shift = DF_DRAM_BASE_LIMIT_LSB;