Allow per-board setting of HT clock and width so

[coreboot.git] / src / northbridge / amd / amdht / h3finit.c

diff --git a/src/northbridge/amd/amdht/h3finit.c b/src/northbridge/amd/amdht/h3finit.c
index 98af59f679d1a2569269a98dd0add2527cf7fd2a..be55c063bb87f66bf212020b3c55d642a3df0470 100644 (file)
--- a/src/northbridge/amd/amdht/h3finit.c
+++ b/src/northbridge/amd/amdht/h3finit.c
@@ -1327,9 +1327,51 @@ void selectOptimalWidthAndFrequency(sMainData *pDat)
 
        for (i = 0; i < pDat->TotalLinks*2; i += 2)
        {
-               cbPCBFreqLimit = 0xFFFF;
+#if CONFIG_LIMIT_HT_SPEED_200
+               cbPCBFreqLimit = 0x0001;
+#elif CONFIG_LIMIT_HT_SPEED_300
+               cbPCBFreqLimit = 0x0003;
+#elif CONFIG_LIMIT_HT_SPEED_400
+               cbPCBFreqLimit = 0x0007;
+#elif CONFIG_LIMIT_HT_SPEED_500
+               cbPCBFreqLimit = 0x000F;
+#elif CONFIG_LIMIT_HT_SPEED_600
+               cbPCBFreqLimit = 0x001F;
+#elif CONFIG_LIMIT_HT_SPEED_800
+               cbPCBFreqLimit = 0x003F;
+#elif CONFIG_LIMIT_HT_SPEED_1000
+               cbPCBFreqLimit = 0x007F;
+#elif CONFIG_LIMIT_HT_SPEED_1200
+               cbPCBFreqLimit = 0x00FF;
+#elif CONFIG_LIMIT_HT_SPEED_1400
+               cbPCBFreqLimit = 0x01FF;
+#elif CONFIG_LIMIT_HT_SPEED_1600
+               cbPCBFreqLimit = 0x03FF;
+#elif CONFIG_LIMIT_HT_SPEED_1800
+               cbPCBFreqLimit = 0x07FF;
+#elif CONFIG_LIMIT_HT_SPEED_2000
+               cbPCBFreqLimit = 0x0FFF;
+#elif CONFIG_LIMIT_HT_SPEED_2200
+               cbPCBFreqLimit = 0x1FFF;
+#elif CONFIG_LIMIT_HT_SPEED_2400
+               cbPCBFreqLimit = 0x3FFF;
+#elif CONFIG_LIMIT_HT_SPEED_2600
+               cbPCBFreqLimit = 0x7FFF;
+#else
+               cbPCBFreqLimit = 0xFFFF;                // Maximum allowed by autoconfiguration
+#endif
+
+#if CONFIG_LIMIT_HT_DOWN_WIDTH_8
+               cbPCBABDownstreamWidth = 8;
+#else
                cbPCBABDownstreamWidth = 16;
+#endif
+
+#if CONFIG_LIMIT_HT_UP_WIDTH_8
+               cbPCBBAUpstreamWidth = 8;
+#else
                cbPCBBAUpstreamWidth = 16;
+#endif
 
                if ( (pDat->PortList[i].Type == PORTLIST_TYPE_CPU) && (pDat->PortList[i+1].Type == PORTLIST_TYPE_CPU))
                {