Lines Matching refs:tRFC
692 unsigned int tRP,tRRD,tRCD,tRC,tRCw,tRCr,tCwCr,tRFC;
1103 * Calculate tRFC if the SPD did not specify it. Use the DIMM's
1110 * 100Mhz or less [10.0ns or more] -- tRFC = 80ns
1111 * 133Mhz or less [7.5ns or more] -- tRFC = 75ns
1112 * 166Mhz or less [6.0ns or more] -- tRFC = 72ns
1113 * All others: -- tRFC = 70ns
1117 * Note: the calculation may cause tRFC to overflow the 4-bit field
1136 tRFC = (calcRFC*4 + tMemClk-1) / tMemClk;
1139 tRFC = ( ((unsigned int) tdata->spd_tRFC)*4 + tMemClk-1) / tMemClk;
1143 * If tRFC will not fit in our field then we need to slow
1146 if (tRFC > tRFC_max) {
1148 printf("DRAM: tRFC too big (%d > %d), reducing memory speed\n",
1149 tRFC, tRFC_max);
1169 V_MC_tRFC(tRFC & 0xf) |
1170 ((tRFC & 0x10) != 0 ? M_MC_tRFC_PLUS16 : 0) |