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 bool "NVIDIA Tegra30 External Memory Controller driver" 25 default y 26 depends on TEGRA_MC && ARCH_TEGRA_3x_SOC 27 help 28 This driver is for the External Memory Controller (EMC) found on 29 Tegra30 chips. The EMC controls the external DRAM on the board. 30 This driver is required to change memory timings / clock rate for 31 external memory. 32 33config TEGRA124_EMC 34 bool "NVIDIA Tegra124 External Memory Controller driver" 35 default y 36 depends on TEGRA_MC && ARCH_TEGRA_124_SOC 37 help 38 This driver is for the External Memory Controller (EMC) found on 39 Tegra124 chips. The EMC controls the external DRAM on the board. 40 This driver is required to change memory timings / clock rate for 41 external memory. 42 43config TEGRA210_EMC_TABLE 44 bool 45 depends on ARCH_TEGRA_210_SOC 46 47config TEGRA210_EMC 48 tristate "NVIDIA Tegra210 External Memory Controller driver" 49 depends on TEGRA_MC && ARCH_TEGRA_210_SOC 50 select TEGRA210_EMC_TABLE 51 help 52 This driver is for the External Memory Controller (EMC) found on 53 Tegra210 chips. The EMC controls the external DRAM on the board. 54 This driver is required to change memory timings / clock rate for 55 external memory. 56