/** Get Vendor Name from spd, 2 cases handled DDR3 and DDR2,
have different formats, always return a valid ptr.*/
CHAR8* getVendorName(RAM_SLOT_INFO* slot, UINT8 *spd, UINT32 base, UINT8 slot_num)
{
UINT8 bank = 0;
UINT8 code = 0;
INTN i = 0;
//UINT8 * spd = (UINT8 *) slot->spd;
if (spd[SPD_MEMORY_TYPE]==SPD_MEMORY_TYPE_SDRAM_DDR3) { // DDR3
bank = (spd[SPD_DDR3_MEMORY_BANK] & 0x07f); // constructors like Patriot use b7=1
code = spd[SPD_DDR3_MEMORY_CODE];
for (i=0; i < VEN_MAP_SIZE; i++)
if (bank==vendorMap[i].bank && code==vendorMap[i].code)
return vendorMap[i].name;
}
else if (spd[SPD_MEMORY_TYPE]==SPD_MEMORY_TYPE_SDRAM_DDR2 || spd[SPD_MEMORY_TYPE]==SPD_MEMORY_TYPE_SDRAM_DDR) {
if(spd[64]==0x7f) {
for (i=64; i<72 && spd[i]==0x7f;i++) {
bank++;
READ_SPD(spd, base, slot_num, (UINT8)(i+1)); // prefetch next spd byte to read for next loop
}
READ_SPD(spd, base, slot_num, (UINT8)i);
code = spd[i];
} else {
code = spd[64];
bank = 0;
}
for (i=0; i < VEN_MAP_SIZE; i++)
if (bank==vendorMap[i].bank && code==vendorMap[i].code)
return vendorMap[i].name;
}
/* OK there is no vendor id here lets try to match the partnum if it exists */
if (AsciiStrStr(slot->PartNo,"GU332") == slot->PartNo) // Unifosa fingerprint
return "Unifosa";
return "NoName";
}
/** Read from spd *used* values only*/
VOID init_spd(UINT8* spd, UINT32 base, UINT8 slot)
{
INTN i;
for (i=0; i< SPD_INDEXES_SIZE; i++) {
READ_SPD(spd, base, slot, spd_indexes[i]);
}
if (spd[SPD_MEMORY_TYPE] == SPD_MEMORY_TYPE_SDRAM_DDR4) {
for (i = SPD_DDR4_MANUFACTURER_ID_CODE; i < SPD_DDR4_REVISION_CODE; i++) {
READ_SPD(spd, base, slot, (UINT16)i);
}
}
}
/** Read from spd *used* values only*/
VOID init_spd(UINT8* spd, UINT32 base, UINT8 slot)
{
INTN i;
for (i=0; i< SPD_INDEXES_SIZE; i++)
READ_SPD(spd, base, slot, spd_indexes[i]);
}