1# SPDX-License-Identifier: GPL-2.0-only 2config TEGRA_MC 3 bool "NVIDIA Tegra Memory Controller support" 4 default y 5 depends on ARCH_TEGRA 6 select INTERCONNECT 7 help 8 This driver supports the Memory Controller (MC) hardware found on 9 NVIDIA Tegra SoCs. 10 11config TEGRA20_EMC 12 tristate "NVIDIA Tegra20 External Memory Controller driver" 13 default y 14 depends on TEGRA_MC && ARCH_TEGRA_2x_SOC 15 select DEVFREQ_GOV_SIMPLE_ONDEMAND 16 select PM_DEVFREQ 17 help 18 This driver is for the External Memory Controller (EMC) found on 19 Tegra20 chips. The EMC controls the external DRAM on the board. 20 This driver is required to change memory timings / clock rate for 21 external memory. 22 23config TEGRA30_EMC 24 tristate "NVIDIA Tegra30 External Memory Controller driver" 25 default y 26 depends on TEGRA_MC && ARCH_TEGRA_3x_SOC 27 select PM_OPP 28 help 29 This driver is for the External Memory Controller (EMC) found on 30 Tegra30 chips. The EMC controls the external DRAM on the board. 31 This driver is required to change memory timings / clock rate for 32 external memory. 33 34config TEGRA124_EMC 35 tristate "NVIDIA Tegra124 External Memory Controller driver" 36 default y 37 depends on TEGRA_MC && ARCH_TEGRA_124_SOC 38 select TEGRA124_CLK_EMC 39 help 40 This driver is for the External Memory Controller (EMC) found on 41 Tegra124 chips. The EMC controls the external DRAM on the board. 42 This driver is required to change memory timings / clock rate for 43 external memory. 44 45config TEGRA210_EMC_TABLE 46 bool 47 depends on ARCH_TEGRA_210_SOC 48 49config TEGRA210_EMC 50 tristate "NVIDIA Tegra210 External Memory Controller driver" 51 depends on TEGRA_MC && ARCH_TEGRA_210_SOC 52 select TEGRA210_EMC_TABLE 53 help 54 This driver is for the External Memory Controller (EMC) found on 55 Tegra210 chips. The EMC controls the external DRAM on the board. 56 This driver is required to change memory timings / clock rate for 57 external memory. 58