3 files changed, 178 insertions, 0 deletions
diff --git a/src/northbridge/intel/x4x/Makefile.inc b/src/northbridge/intel/x4x/Makefile.inc
index 34d9b0fdd7..3520944ea2 100644
--- a/src/northbridge/intel/x4x/Makefile.inc
+++ b/src/northbridge/intel/x4x/Makefile.inc
@@ -20,6 +20,7 @@ romstage-y += early_init.c
 romstage-y += raminit.c
 romstage-y += raminit_ddr2.c
 romstage-y += ram_calc.c
+romstage-y += pcie.c
 
 ramstage-y += acpi.c
 ramstage-y += ram_calc.c
diff --git a/src/northbridge/intel/x4x/pcie.c b/src/northbridge/intel/x4x/pcie.c
new file mode 100644
index 0000000000..d432fea3c0
--- /dev/null
+++ b/src/northbridge/intel/x4x/pcie.c
@@ -0,0 +1,176 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2016 Damien Zammit <damien@zamaudio.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdint.h>
+#include <stddef.h>
+#include <string.h>
+#include <arch/io.h>
+#include <device/pci_def.h>
+#include <device/pnp_def.h>
+#include <console/console.h>
+
+#include "iomap.h"
+#include "x4x.h"
+
+#define DEFAULT_RCBA	0xfed1c000
+
+static void init_egress(void)
+{
+	/* VC0: TC0 only */
+	EPBAR8(0x14) = 1;
+	EPBAR8(0x4) = 1;
+
+	/* VC1: ID1, TC7 */
+	EPBAR32(0x20) = (EPBAR32(0x20) & ~(7 << 24)) | (1 << 24);
+	EPBAR8(0x20) = 1 << 7;
+
+	/* VC1: enable */
+	EPBAR32(0x20) |= 1 << 31;
+
+	while ((EPBAR8(0x26) & 2) != 0) ;
+
+	printk(BIOS_DEBUG, "Done EP loop\n");
+}
+
+static void init_dmi(void)
+{
+	/* VC0: TC0 only */
+	DMIBAR8(DMIVC0RCTL) = 1;
+	DMIBAR8(0x4) = 1;
+
+	/* VC1: ID1, TC7 */
+	DMIBAR32(DMIVC1RCTL) = (DMIBAR32(DMIVC1RCTL) & ~(7 << 24)) | (1 << 24);
+	DMIBAR8(DMIVC1RCTL) = 1 << 7;
+
+	/* VC1: enable */
+	DMIBAR32(DMIVC1RCTL) |= 1 << 31;
+
+	// Hangs
+	//while ((DMIBAR8(0x26) & 2) != 0) ;
+	//printk(BIOS_DEBUG, "Done DMI loop\n");
+
+	DMIBAR32(0x0028) = 0x00000001;
+	DMIBAR32(0x002c) = 0x86000000;
+	DMIBAR32(0x0040) = 0x08010005;
+	DMIBAR32(0x0044) = 0x01010202;
+	DMIBAR32(0x0050) = 0x00020001;
+	DMIBAR32(0x0058) = DEFAULT_RCBA;
+	DMIBAR32(0x0060) = 0x00010001;
+	DMIBAR32(0x0068) = DEFAULT_EPBAR;
+	DMIBAR32(0x0080) = 0x00010006;
+	DMIBAR32(0x0084) = 0x00012c41;
+	DMIBAR32(0x0088) = 0x00410000;
+	DMIBAR32(0x00f0) = 0x00012000;
+	DMIBAR32(0x00f4) = 0x33fe0037;
+	DMIBAR32(0x00fc) = 0xf000f004;
+
+	DMIBAR32(0x01b0) = 0x00400000;
+	DMIBAR32(0x01b4) = 0x00008000;
+	DMIBAR32(0x01b8) = 0x000018f2;
+	DMIBAR32(0x01bc) = 0x00000018;
+	DMIBAR32(0x01cc) = 0x00060010;
+	DMIBAR32(0x01d4) = 0x00002000;
+	DMIBAR32(0x0200) = 0x00400f26;
+	DMIBAR32(0x0204) = 0x0001313f;
+	DMIBAR32(0x0208) = 0x00007cb0;
+	DMIBAR32(0x0210) = 0x00000101;
+	DMIBAR32(0x0214) = 0x0007000f;
+	DMIBAR32(0x0224) = 0x00030005;
+	DMIBAR32(0x0230) = 0x2800000e;
+	DMIBAR32(0x0234) = 0x4abcb5bc;
+	DMIBAR32(0x0250) = 0x00000007;
+
+	DMIBAR32(0x0c00) = 0x0000003c;
+	DMIBAR32(0x0c04) = 0x16000000;
+	DMIBAR32(0x0c0c) = 0x00001fff;
+	DMIBAR32(0x0c10) = 0x0000b100;
+	DMIBAR32(0x0c24) = 0xffff0038;
+	DMIBAR32(0x0c28) = 0x0000000e;
+	DMIBAR32(0x0c2c) = 0x003c0008;
+	DMIBAR32(0x0c30) = 0x02000180;
+	DMIBAR32(0x0c34) = 0x10040071;
+	DMIBAR32(0x0d60) = 0x00000001;
+	DMIBAR32(0x0d6c) = 0x00000300;
+	DMIBAR32(0x0d74) = 0x00000020;
+	DMIBAR32(0x0d78) = 0x00220000;
+	DMIBAR32(0x0d7c) = 0x111f727c;
+	DMIBAR32(0x0d80) = 0x00001409;
+	DMIBAR32(0x0d88) = 0x000f1867;
+	DMIBAR32(0x0d8c) = 0x013000fc;
+	DMIBAR32(0x0da4) = 0x00009757;
+	DMIBAR32(0x0da8) = 0x00000078;
+	DMIBAR32(0x0e00) = 0x000d034e;
+	DMIBAR32(0x0e04) = 0x01880880;
+	DMIBAR32(0x0e08) = 0x01000060;
+	DMIBAR32(0x0e0c) = 0x00000080;
+	DMIBAR32(0x0e10) = 0xbe000000;
+	DMIBAR32(0x0e18) = 0x000000e3;
+	DMIBAR32(0x0e20) = 0x000d034e;
+	DMIBAR32(0x0e24) = 0x01880880;
+	DMIBAR32(0x0e28) = 0x01000060;
+	DMIBAR32(0x0e2c) = 0x00000080;
+	DMIBAR32(0x0e30) = 0xbe000000;
+	DMIBAR32(0x0e38) = 0x000000e3;
+	DMIBAR32(0x0e40) = 0x000d034e;
+	DMIBAR32(0x0e44) = 0x01880880;
+	DMIBAR32(0x0e48) = 0x01000060;
+	DMIBAR32(0x0e4c) = 0x00000080;
+	DMIBAR32(0x0e50) = 0xbe000000;
+	DMIBAR32(0x0e58) = 0x000000e3;
+	DMIBAR32(0x0e60) = 0x000d034e;
+	DMIBAR32(0x0e64) = 0x01880880;
+	DMIBAR32(0x0e68) = 0x01000060;
+	DMIBAR32(0x0e6c) = 0x00000080;
+	DMIBAR32(0x0e70) = 0xbe000000;
+	DMIBAR32(0x0e78) = 0x000000e3;
+
+	DMIBAR32(0x0e14) = 0xce00381b;
+	DMIBAR32(0x0e34) = 0x4000781b;
+	DMIBAR32(0x0e54) = 0x5c00781b;
+	DMIBAR32(0x0e74) = 0x5400381b;
+
+	DMIBAR32(0x0218) = 0x0b6202c1;
+	DMIBAR32(0x021c) = 0x02c202c2;
+
+	DMIBAR32(0x0334) = 0x00b904b3;
+	DMIBAR32(0x0338) = 0x004e0000;
+
+	DMIBAR32(0x0300) = 0x00a70f4c;
+	DMIBAR32(0x0304) = 0x00a90f54;
+	DMIBAR32(0x0308) = 0x00d103c4;
+	DMIBAR32(0x030c) = 0x003c0e10;
+	DMIBAR32(0x0310) = 0x003d0e11;
+	DMIBAR32(0x0314) = 0x00640000;
+	DMIBAR32(0x0318) = 0x00320c86;
+	DMIBAR32(0x031c) = 0x003a0ca6;
+	DMIBAR32(0x0324) = 0x00040010;
+	DMIBAR32(0x0328) = 0x00040000;
+
+	EPBAR32(0x40) = 0x00010005;
+	EPBAR32(0x44) = 0x00010301;
+	EPBAR32(0x50) = 0x01010001;
+	EPBAR32(0x58) = DEFAULT_DMIBAR;
+	EPBAR32(0x60) = 0x02010003;
+	EPBAR32(0x68) = 0x00008000;
+	EPBAR32(0x70) = 0x03000002;
+	EPBAR32(0x78) = 0x00030000;
+}
+
+void x4x_late_init(void)
+{
+	init_egress();
+	init_dmi();
+}
diff --git a/src/northbridge/intel/x4x/x4x.h b/src/northbridge/intel/x4x/x4x.h
index e1ef745867..17810aa3cb 100644
--- a/src/northbridge/intel/x4x/x4x.h
+++ b/src/northbridge/intel/x4x/x4x.h
@@ -315,6 +315,7 @@ enum ddr2_signals {
 
 #ifndef __BOOTBLOCK__
 void x4x_early_init(void);
+void x4x_late_init(void);
 u32 decode_igd_memory_size(u32 gms);
 u32 decode_igd_gtt_size(u32 gsm);
 u8 decode_pciebar(u32 *const base, u32 *const len);