| # SPDX-License-Identifier: GPL-2.0-only |
| # |
| # Memory devices |
| # |
| |
| menuconfig MEMORY |
| bool "Memory Controller drivers" |
| help |
| This option allows to enable specific memory controller drivers, |
| useful mostly on embedded systems. These could be controllers |
| for DRAM (SDR, DDR), ROM, SRAM and others. The drivers features |
| vary from memory tuning and frequency scaling to enabling |
| access to attached peripherals through memory bus. |
| |
| if MEMORY |
| |
| config DDR |
| bool |
| help |
| Data from JEDEC specs for DDR SDRAM memories, |
| particularly the AC timing parameters and addressing |
| information. This data is useful for drivers handling |
| DDR SDRAM controllers. |
| |
| config ARM_PL172_MPMC |
| tristate "ARM PL172 MPMC driver" |
| depends on ARM_AMBA && OF |
| help |
| This selects the ARM PrimeCell PL172 MultiPort Memory Controller. |
| If you have an embedded system with an AMBA bus and a PL172 |
| controller, say Y or M here. |
| |
| config ATMEL_SDRAMC |
| bool "Atmel (Multi-port DDR-)SDRAM Controller" |
| default y if ARCH_AT91 |
| depends on ARCH_AT91 || COMPILE_TEST |
| depends on OF |
| help |
| This driver is for Atmel SDRAM Controller or Atmel Multi-port |
| DDR-SDRAM Controller available on Atmel AT91SAM9 and SAMA5 SoCs. |
| Starting with the at91sam9g45, this controller supports SDR, DDR and |
| LP-DDR memories. |
| |
| config ATMEL_EBI |
| bool "Atmel EBI driver" |
| default y if ARCH_AT91 |
| depends on ARCH_AT91 || COMPILE_TEST |
| depends on OF |
| select MFD_SYSCON |
| select MFD_ATMEL_SMC |
| help |
| Driver for Atmel EBI controller. |
| Used to configure the EBI (external bus interface) when the device- |
| tree is used. This bus supports NANDs, external ethernet controller, |
| SRAMs, ATA devices, etc. |
| |
| config BRCMSTB_DPFE |
| tristate "Broadcom STB DPFE driver" |
| default ARCH_BRCMSTB |
| depends on ARCH_BRCMSTB || COMPILE_TEST |
| help |
| This driver provides access to the DPFE interface of Broadcom |
| STB SoCs. The firmware running on the DCPU inside the DDR PHY can |
| provide current information about the system's RAM, for instance |
| the DRAM refresh rate. This can be used as an indirect indicator |
| for the DRAM's temperature. Slower refresh rate means cooler RAM, |
| higher refresh rate means hotter RAM. |
| |
| config BRCMSTB_MEMC |
| tristate "Broadcom STB MEMC driver" |
| default ARCH_BRCMSTB |
| depends on ARCH_BRCMSTB || COMPILE_TEST |
| help |
| This driver provides a way to configure the Broadcom STB memory |
| controller and specifically control the Self Refresh Power Down |
| (SRPD) inactivity timeout. |
| |
| config BT1_L2_CTL |
| bool "Baikal-T1 CM2 L2-RAM Cache Control Block" |
| depends on MIPS_BAIKAL_T1 || COMPILE_TEST |
| select MFD_SYSCON |
| help |
| Baikal-T1 CPU is based on the MIPS P5600 Warrior IP-core. The CPU |
| resides Coherency Manager v2 with embedded 1MB L2-cache. It's |
| possible to tune the L2 cache performance up by setting the data, |
| tags and way-select latencies of RAM access. This driver provides a |
| dt properties-based and sysfs interface for it. |
| |
| config TI_AEMIF |
| tristate "Texas Instruments AEMIF driver" |
| depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST |
| depends on OF |
| help |
| This driver is for the AEMIF module available in Texas Instruments |
| SoCs. AEMIF stands for Asynchronous External Memory Interface and |
| is intended to provide a glue-less interface to a variety of |
| asynchronuous memory devices like ASRAM, NOR and NAND memory. A total |
| of 256M bytes of any of these memories can be accessed at a given |
| time via four chip selects with 64M byte access per chip select. |
| |
| config TI_EMIF |
| tristate "Texas Instruments EMIF driver" |
| depends on ARCH_OMAP2PLUS || COMPILE_TEST |
| select DDR |
| help |
| This driver is for the EMIF module available in Texas Instruments |
| SoCs. EMIF is an SDRAM controller that, based on its revision, |
| supports one or more of DDR2, DDR3, and LPDDR2 SDRAM protocols. |
| This driver takes care of only LPDDR2 memories presently. The |
| functions of the driver includes re-configuring AC timing |
| parameters and other settings during frequency, voltage and |
| temperature changes |
| |
| config OMAP_GPMC |
| tristate "Texas Instruments OMAP SoC GPMC driver" |
| depends on OF_ADDRESS |
| depends on ARCH_OMAP2PLUS || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST |
| select GPIOLIB |
| help |
| This driver is for the General Purpose Memory Controller (GPMC) |
| present on Texas Instruments SoCs (e.g. OMAP2+). GPMC allows |
| interfacing to a variety of asynchronous as well as synchronous |
| memory drives like NOR, NAND, OneNAND, SRAM. |
| |
| config OMAP_GPMC_DEBUG |
| bool "Enable GPMC debug output and skip reset of GPMC during init" |
| depends on OMAP_GPMC |
| help |
| Enables verbose debugging mostly to decode the bootloader provided |
| timings. To preserve the bootloader provided timings, the reset |
| of GPMC is skipped during init. Enable this during development to |
| configure devices connected to the GPMC bus. |
| |
| NOTE: In addition to matching the register setup with the bootloader |
| you also need to match the GPMC FCLK frequency used by the |
| bootloader or else the GPMC timings won't be identical with the |
| bootloader timings. |
| |
| config TI_EMIF_SRAM |
| tristate "Texas Instruments EMIF SRAM driver" |
| depends on SOC_AM33XX || SOC_AM43XX || (ARM && CPU_V7 && COMPILE_TEST) |
| depends on SRAM |
| help |
| This driver is for the EMIF module available on Texas Instruments |
| AM33XX and AM43XX SoCs and is required for PM. Certain parts of |
| the EMIF PM code must run from on-chip SRAM late in the suspend |
| sequence so this driver provides several relocatable PM functions |
| for the SoC PM code to use. |
| |
| config FPGA_DFL_EMIF |
| tristate "FPGA DFL EMIF Driver" |
| depends on FPGA_DFL && HAS_IOMEM |
| help |
| This driver is for the EMIF private feature implemented under |
| FPGA Device Feature List (DFL) framework. It is used to expose |
| memory interface status information as well as memory clearing |
| control. |
| |
| config MVEBU_DEVBUS |
| bool "Marvell EBU Device Bus Controller" |
| default y if PLAT_ORION |
| depends on PLAT_ORION || COMPILE_TEST |
| depends on OF |
| help |
| This driver is for the Device Bus controller available in some |
| Marvell EBU SoCs such as Discovery (mv78xx0), Orion (88f5xxx) and |
| Armada 370 and Armada XP. This controller allows to handle flash |
| devices such as NOR, NAND, SRAM, and FPGA. |
| |
| config FSL_CORENET_CF |
| tristate "Freescale CoreNet Error Reporting" |
| depends on FSL_SOC_BOOKE || COMPILE_TEST |
| help |
| Say Y for reporting of errors from the Freescale CoreNet |
| Coherency Fabric. Errors reported include accesses to |
| physical addresses that mapped by no local access window |
| (LAW) or an invalid LAW, as well as bad cache state that |
| represents a coherency violation. |
| |
| config FSL_IFC |
| bool "Freescale IFC driver" if COMPILE_TEST |
| depends on FSL_SOC || ARCH_LAYERSCAPE || SOC_LS1021A || COMPILE_TEST |
| depends on HAS_IOMEM |
| |
| config JZ4780_NEMC |
| bool "Ingenic JZ4780 SoC NEMC driver" |
| depends on MIPS || COMPILE_TEST |
| depends on HAS_IOMEM && OF |
| help |
| This driver is for the NAND/External Memory Controller (NEMC) in |
| the Ingenic JZ4780. This controller is used to handle external |
| memory devices such as NAND and SRAM. |
| |
| config MTK_SMI |
| tristate "MediaTek SoC Memory Controller driver" if COMPILE_TEST |
| depends on ARCH_MEDIATEK || COMPILE_TEST |
| help |
| This driver is for the Memory Controller module in MediaTek SoCs, |
| mainly help enable/disable iommu and control the power domain and |
| clocks for each local arbiter. |
| |
| config DA8XX_DDRCTL |
| bool "Texas Instruments da8xx DDR2/mDDR driver" |
| depends on ARCH_DAVINCI_DA8XX || COMPILE_TEST |
| help |
| This driver is for the DDR2/mDDR Memory Controller present on |
| Texas Instruments da8xx SoCs. It's used to tweak various memory |
| controller configuration options. |
| |
| config PL353_SMC |
| tristate "ARM PL35X Static Memory Controller(SMC) driver" |
| default y if ARM |
| depends on ARM || COMPILE_TEST |
| depends on ARM_AMBA |
| help |
| This driver is for the ARM PL351/PL353 Static Memory |
| Controller(SMC) module. |
| |
| config RENESAS_RPCIF |
| tristate "Renesas RPC-IF driver" |
| depends on ARCH_RENESAS || COMPILE_TEST |
| select REGMAP_MMIO |
| select RESET_CONTROLLER |
| help |
| This supports Renesas R-Car Gen3 or RZ/G2 RPC-IF which provides |
| either SPI host or HyperFlash. You'll have to select individual |
| components under the corresponding menu. |
| |
| config STM32_FMC2_EBI |
| tristate "Support for FMC2 External Bus Interface on STM32MP SoCs" |
| depends on MACH_STM32MP157 || COMPILE_TEST |
| select MFD_SYSCON |
| help |
| Select this option to enable the STM32 FMC2 External Bus Interface |
| controller. This driver configures the transactions with external |
| devices (like SRAM, ethernet adapters, FPGAs, LCD displays, ...) on |
| SOCs containing the FMC2 External Bus Interface. |
| |
| source "drivers/memory/samsung/Kconfig" |
| source "drivers/memory/tegra/Kconfig" |
| |
| endif |
