config IMX8M_DRAM bool "imx8m dram" config IMX8M_LPDDR4 bool "imx8m lpddr4" select IMX8M_DRAM help Select the i.MX8M LPDDR4 driver support on i.MX8M SOC. config IMX8M_DDR4 bool "imx8m ddr4" select IMX8M_DRAM help Select the i.MX8M DDR4 driver support on i.MX8M SOC. config SAVED_DRAM_TIMING_BASE hex "Define the base address for saved dram timing" help after DRAM is trained, need to save the dram related timming info into memory for low power use. OCRAM_S is used for this purpose on i.MX8MM. default 0x180000