| 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 |
