[U-Boot-Users] MIPS: about macro of BOARD_DIMM_0_SPD_TWSI_ADDR

In the file of include\configs\octeon_ebh3100.h, there is a macro definition: #define BOARD_DIMM_0_SPD_TWSI_ADDR 0x52 I know it is a address of eeprom in I2C bus, but I don't know why you define it 0x50. What does 0x50 base on?