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menuconfig ASPEED_RAM
bool "ASPEED SDRAM configuration"
depends on RAM && ARCH_ASPEED
default ARCH_ASPEED
help
Configuration options for DDR SDRAM on ASPEED systems.
RAM initialisation is always built in for the platform. This menu
allows customisation of the configuration used.
if ASPEED_RAM
config ASPEED_DDR4_DUALX8
bool "Enable Dual X8 DDR4 die"
depends on ASPEED_RAM
help
Say Y if dual X8 DDR4 die is used on the board. The ASPEED DDRM
SRAM controller needs to know if the memory chip mounted on the
board is dual x8 die or not, otherwise it may get the wrong
size of the memory space.
config ASPEED_BYPASS_SELFTEST
depends on ASPEED_RAM
depends on ASPEED_AST2600
bool "Bypass self test during initialization"
help
Say Y here to bypass DRAM self test to speed up the boot time.
config ASPEED_ECC
bool "ASPEED SDRAM ECC"
depends on ASPEED_RAM
depends on ASPEED_AST2600
help
Enable SDRAM ECC function. This configures the SDRAM controller to
perform error detection and correction, sacrificing 1/9th of the
installed RAM to do so.
config ASPEED_ECC_SIZE
int "ECC size: 0=driver auto-caluated"
depends on ASPEED_ECC
default 0
help
SDRAM size with the error correcting code enabled. The unit is
in Megabytes. Noted that only the 8/9 of the configured size
can be used by the system. The remaining 1/9 will be used by
the ECC engine. If the size is set to 0, the sdram driver will
calculate the SDRAM size and set the whole range be ECC enabled.
choice
prompt "AST2600 DDR4 target date rate"
default ASPEED_DDR4_1600
depends on ASPEED_RAM
depends on ASPEED_AST2600
config ASPEED_DDR4_400
bool "400Mbps"
help
select DDR4 target data rate at 400M
config ASPEED_DDR4_800
bool "800Mbps"
help
select DDR4 target data rate at 800M
config ASPEED_DDR4_1333
bool "1333Mbps"
help
select DDR4 target data rate at 1333M
config ASPEED_DDR4_1600
bool "1600Mbps"
help
select DDR4 target data rate at 1600M
endchoice
endif # End of ASPEED_RAM
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