Revert removal of MMCONFIG

Change-Id: I22be03d5714b58bd19fdf0cd126487b1e72d7473

src/lib/memrange.c

@@ -252,17 +252,6 @@ static void collect_ranges(void *gp, struct device *dev, struct resource *res)
 	if (res->size == 0)
 		return;
 
-#if CONFIG(SOC_INTEL_TIGERLAKE)
-    if (
-        ctx->tag == 0x10002 && /* BM_MEM_RESERVED */
-        res->base == CONFIG_MMCONF_BASE_ADDRESS &&
-        res->size == CONFIG_SA_PCIEX_LENGTH
-    ) {
-        printk(BIOS_WARNING, "Skipping MMCONF region\n");
-        return;
-    }
-#endif
-
 	if (ctx->filter == NULL || ctx->filter(dev, res))
 		memranges_insert(ctx->ranges, res->base, res->size, ctx->tag);
 }

src/soc/intel/common/block/acpi/acpi/northbridge.asl

@@ -265,12 +265,10 @@ Device (PDRC)
 			 */
 			Memory32Fixed (ReadWrite, 0, EP_BASE_SIZE, EGPB)
 
-#if !CONFIG(SOC_INTEL_TIGERLAKE)
 			/* PCI Express BAR _BAS and _LEN will be updated in
 			 * _CRS below according to B0:D0:F0:Reg.60h
 			 */
 			Memory32Fixed (ReadWrite, 0, 0, PCIX)
-#endif
 
 			/* VTD engine memory range. */
 			Memory32Fixed (ReadOnly, VTD_BASE_ADDRESS, VTD_BASE_SIZE)
@@ -294,13 +292,11 @@ Device (PDRC)
 		CreateDwordField (BUF0, EGPB._BAS, EBR0)
 		EBR0 = \_SB.PCI0.GEPB ()
 
-#if !CONFIG(SOC_INTEL_TIGERLAKE)
 		CreateDwordField (BUF0, PCIX._BAS, XBR0)
 		XBR0 = \_SB.PCI0.GPCB ()
 
 		CreateDwordField (BUF0, PCIX._LEN, XSZ0)
 		XSZ0 = \_SB.PCI0.GPCL ()
-#endif
 
 		CreateDwordField (BUF0, FIOH._BAS, FBR0)
 		FBR0 = 0x100000000 - CONFIG_ROM_SIZE