diff options
| -rw-r--r-- | modules/devices/spd-decode.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/modules/devices/spd-decode.c b/modules/devices/spd-decode.c index ae304a4f..c734ea63 100644 --- a/modules/devices/spd-decode.c +++ b/modules/devices/spd-decode.c @@ -1266,7 +1266,12 @@ static void decode_ddr3_module_speed(unsigned char *bytes, float *ddr_clock, int } static void decode_ddr3_module_size(unsigned char *bytes, int *size) { - *size = 512 << bytes[4]; + unsigned int sdr_capacity = 256 << (bytes[4] & 0xF); + unsigned int sdr_width = 4 << (bytes[7] & 0x7); + unsigned int bus_width = 8 << (bytes[8] & 0x7); + unsigned int ranks = 1 + ((bytes[7] >> 3) & 0x7); + + *size = sdr_capacity / 8 * bus_width / sdr_width * ranks; } static void decode_ddr3_module_timings(unsigned char *bytes, float *trcd, float *trp, float *tras, |