MHz value as suggested by Alan Barret (apb@).
While I'm here make it report the correct type, it should be PC2 not PC
for DDR2.
spdmem0 at iic0 addr 0x50
spdmem0: DDR2 SDRAM memory, no parity or ECC, 1024MB, 800MHz, PC2-6400
spdmem0: 14 rows, 10 cols, 2 ranks, 4 banks/chip, 2.50ns cycle time
spdmem0: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
spdmem1 at iic0 addr 0x51
spdmem1: DDR2 SDRAM memory, no parity or ECC, 1024MB, 667MHz, PC2-5300
spdmem1: 14 rows, 10 cols, 2 ranks, 4 banks/chip, 3.00ns cycle time
spdmem1: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
the eeprom on common types of memory modules. The specifications are
displayed during boot and can later be queried in the hw.spdmemN sysctl
subtree. Stub driver written by Nicolas Joly and greatly improved upon by
Paul Goyette. From PR 36745, with additional improvements by Paul and me.