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dce208b540
Introduce driver for the External Memory Controller (EMC) found in Tegra114 SoC. It controls the external DRAM on the board. The purpose of this driver is to program memory timing for external memory on the EMC clock rate change. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Link: https://patch.msgid.link/20260427070312.81679-5-clamor95@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
84 lines
2.6 KiB
Plaintext
84 lines
2.6 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config TEGRA_MC
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bool "NVIDIA Tegra Memory Controller support"
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default ARCH_TEGRA
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depends on ARCH_TEGRA || (COMPILE_TEST && COMMON_CLK)
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select INTERCONNECT
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help
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This driver supports the Memory Controller (MC) hardware found on
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NVIDIA Tegra SoCs.
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if TEGRA_MC
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config TEGRA20_EMC
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tristate "NVIDIA Tegra20 External Memory Controller driver"
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default ARCH_TEGRA_2x_SOC
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depends on ARCH_TEGRA_2x_SOC || COMPILE_TEST
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select DEVFREQ_GOV_SIMPLE_ONDEMAND
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select PM_DEVFREQ
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select DDR
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select TEGRA_EMC_COMMON
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help
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This driver is for the External Memory Controller (EMC) found on
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Tegra20 chips. The EMC controls the external DRAM on the board.
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This driver is required to change memory timings / clock rate for
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external memory.
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config TEGRA30_EMC
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tristate "NVIDIA Tegra30 External Memory Controller driver"
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default ARCH_TEGRA_3x_SOC
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depends on ARCH_TEGRA_3x_SOC || COMPILE_TEST
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select PM_OPP
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select DDR
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select TEGRA_EMC_COMMON
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help
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This driver is for the External Memory Controller (EMC) found on
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Tegra30 chips. The EMC controls the external DRAM on the board.
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This driver is required to change memory timings / clock rate for
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external memory.
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config TEGRA114_EMC
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tristate "NVIDIA Tegra114 External Memory Controller driver"
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default ARCH_TEGRA_114_SOC
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depends on ARCH_TEGRA_114_SOC || COMPILE_TEST
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select TEGRA124_CLK_EMC if ARCH_TEGRA
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select PM_OPP
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select TEGRA_EMC_COMMON
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help
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This driver is for the External Memory Controller (EMC) found on
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Tegra114 chips. The EMC controls the external DRAM on the board.
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This driver is required to change memory timings / clock rate for
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external memory.
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config TEGRA124_EMC
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tristate "NVIDIA Tegra124 External Memory Controller driver"
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default ARCH_TEGRA_124_SOC
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depends on ARCH_TEGRA_124_SOC || COMPILE_TEST
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select TEGRA124_CLK_EMC if ARCH_TEGRA
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select PM_OPP
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select TEGRA_EMC_COMMON
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help
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This driver is for the External Memory Controller (EMC) found on
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Tegra124 chips. The EMC controls the external DRAM on the board.
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This driver is required to change memory timings / clock rate for
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external memory.
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config TEGRA210_EMC_TABLE
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bool
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depends on ARCH_TEGRA_210_SOC || COMPILE_TEST
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config TEGRA210_EMC
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tristate "NVIDIA Tegra210 External Memory Controller driver"
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depends on ARCH_TEGRA_210_SOC || COMPILE_TEST
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select TEGRA210_EMC_TABLE
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help
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This driver is for the External Memory Controller (EMC) found on
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Tegra210 chips. The EMC controls the external DRAM on the board.
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This driver is required to change memory timings / clock rate for
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external memory.
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config TEGRA_EMC_COMMON
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tristate
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endif
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