AMD Merlin Falcon: Add northbridge files for new AMD processor

Tested on Bettong. Windows 7, Windows 8.1 and Ubuntu 14.04 can boot.

Change-Id: Ifcbfa0eab74875638a40e74ba2a3bb7c4fb02761
Signed-off-by: WANG Siyuan <wangsiyuanbuaa@gmail.com>
Signed-off-by: WANG Siyuan <SiYuan.Wang@amd.com>
Reviewed-on: http://review.coreboot.org/10419
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

11 files changed, 1441 insertions, 10 deletions

diff --git a/src/northbridge/amd/pi/00660F01/Kconfig b/src/northbridge/amd/pi/00660F01/Kconfig
new file mode 100644
index 0000000..003e4b6
--- /dev/null
+++ b/src/northbridge/amd/pi/00660F01/Kconfig
@@ -0,0 +1,53 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2015 Advanced Micro Devices, Inc.
+##
+## 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.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc.
+##
+config NORTHBRIDGE_AMD_PI_00660F01
+	bool
+	select MMCONF_SUPPORT
+	select PER_DEVICE_ACPI_TABLES
+
+if NORTHBRIDGE_AMD_PI_00660F01
+
+config HW_MEM_HOLE_SIZEK
+	hex
+	default 0x100000
+
+config HW_MEM_HOLE_SIZE_AUTO_INC
+	bool
+	default n
+
+config MMCONF_BASE_ADDRESS
+	hex
+	default 0xF8000000
+
+config MMCONF_BUS_NUMBER
+	int
+	default 64
+
+config VGA_BIOS_ID
+	string
+	default "1002,9870"
+	help
+	  The default VGA BIOS PCI vendor/device ID should be set to the
+	  result of the map_oprom_vendev() function in northbridge.c.
+
+config VGA_BIOS_FILE
+	string
+	default "3rdparty/blobs/northbridge/amd/00660F01/VBIOS.bin"
+
+endif
diff --git a/src/northbridge/amd/pi/00660F01/Makefile.inc b/src/northbridge/amd/pi/00660F01/Makefile.inc
new file mode 100644
index 0000000..38c4260
--- /dev/null
+++ b/src/northbridge/amd/pi/00660F01/Makefile.inc
@@ -0,0 +1,22 @@
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2015 Advanced Micro Devices, Inc.
+#
+# 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc.
+#
+
+romstage-y += dimmSpd.c
+
+ramstage-y += northbridge.c
diff --git a/src/northbridge/amd/pi/00660F01/acpi/northbridge.asl b/src/northbridge/amd/pi/00660F01/acpi/northbridge.asl
new file mode 100644
index 0000000..7a9960f
--- /dev/null
+++ b/src/northbridge/amd/pi/00660F01/acpi/northbridge.asl
@@ -0,0 +1,100 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Sage Electronic Engineering, LLC
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+/* Note: Only need HID on Primary Bus */
+External (TOM1)
+External (TOM2)
+Name(_HID, EISAID("PNP0A08"))	/* PCI Express Root Bridge */
+Name(_CID, EISAID("PNP0A03"))	/* PCI Root Bridge */
+Name(_ADR, 0x00180000)	/* Dev# = BSP Dev#, Func# = 0 */
+
+/* Describe the Northbridge devices */
+
+Method(_BBN, 0, NotSerialized)	/* Bus number = 0 */
+{
+	Return(Zero)
+}
+
+Method(_STA, 0, NotSerialized)
+{
+	Return(0x0B)	/* Status is visible */
+}
+
+Method(_PRT,0, NotSerialized)
+{
+	If(PMOD)
+	{
+		Return(APR0)	/* APIC mode */
+	}
+	Return (PR0)		/* PIC Mode */
+}
+
+Device(AMRT) {
+	Name(_ADR, 0x00000000)
+} /* end AMRT */
+
+/* Gpp 0 */
+Device(PBR4) {
+	Name(_ADR, 0x00020001)
+	Name(_PRW, Package() {0x18, 4})
+	Method(_PRT,0) {
+		If(PMOD){ Return(APS4) }	/* APIC mode */
+		Return (PS4)			/* PIC Mode */
+	} /* end _PRT */
+} /* end PBR4 */
+
+/* Gpp 1 */
+Device(PBR5) {
+	Name(_ADR, 0x00020002)
+	Name(_PRW, Package() {0x18, 4})
+	Method(_PRT,0) {
+		If(PMOD){ Return(APS5) }	/* APIC mode */
+		Return (PS5)			/* PIC Mode */
+	} /* end _PRT */
+} /* end PBR5 */
+
+/* Gpp 2 */
+Device(PBR6) {
+	Name(_ADR, 0x00020003)
+	Name(_PRW, Package() {0x18, 4})
+	Method(_PRT,0) {
+		If(PMOD){ Return(APS6) }	/* APIC mode */
+		Return (PS6)			/* PIC Mode */
+	} /* end _PRT */
+} /* end PBR6 */
+
+/* Gpp 3 */
+Device(PBR7) {
+	Name(_ADR, 0x00020004)
+	Name(_PRW, Package() {0x18, 4})
+	Method(_PRT,0) {
+		If(PMOD){ Return(APS7) }	/* APIC mode */
+		Return (PS7)			/* PIC Mode */
+	} /* end _PRT */
+} /* end PBR7 */
+
+/* Gpp 4 */
+Device(PBR8) {
+	Name(_ADR, 0x00020005)
+	Name(_PRW, Package() {0x18, 4})
+	Method(_PRT,0) {
+		If(PMOD){ Return(APS8) }	/* APIC mode */
+		Return (PS8)			/* PIC Mode */
+	} /* end _PRT */
+} /* end PBR8 */
diff --git a/src/northbridge/amd/pi/00660F01/chip.h b/src/northbridge/amd/pi/00660F01/chip.h
new file mode 100644
index 0000000..7566fd4
--- /dev/null
+++ b/src/northbridge/amd/pi/00660F01/chip.h
@@ -0,0 +1,28 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Sage Electronic Engineering, LLC
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#ifndef _PI_FAM15CZ_CHIP_H_
+#define _PI_FAM15CZ_CHIP_H_
+
+struct northbridge_amd_pi_00660F01_config
+{
+	u8 spdAddrLookup[2][2][4];
+};
+
+#endif
diff --git a/src/northbridge/amd/pi/00660F01/dimmSpd.c b/src/northbridge/amd/pi/00660F01/dimmSpd.c
new file mode 100644
index 0000000..6996f83
--- /dev/null
+++ b/src/northbridge/amd/pi/00660F01/dimmSpd.c
@@ -0,0 +1,53 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Advanced Micro Devices, Inc.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <device/pci_def.h>
+#include <device/device.h>
+#include <stdlib.h>
+
+/* warning: Porting.h includes an open #pragma pack(1) */
+#include "Porting.h"
+#include "AGESA.h"
+#include "amdlib.h"
+#include "chip.h"
+#include "northbridge/amd/pi/dimmSpd.h"
+
+AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINT32 unused2, AGESA_READ_SPD_PARAMS *info)
+{
+	int spdAddress;
+	ROMSTAGE_CONST struct device *dev = dev_find_slot(0, PCI_DEVFN(0x18, 2));
+	ROMSTAGE_CONST struct northbridge_amd_pi_00660F01_config *config = dev->chip_info;
+
+	if ((dev == 0) || (config == 0))
+		return AGESA_ERROR;
+	if (info->SocketId >= ARRAY_SIZE(config->spdAddrLookup))
+		return AGESA_ERROR;
+	if (info->MemChannelId >= ARRAY_SIZE(config->spdAddrLookup[0]))
+		return AGESA_ERROR;
+	if (info->DimmId >= ARRAY_SIZE(config->spdAddrLookup[0][0]))
+		return AGESA_ERROR;
+	spdAddress = config->spdAddrLookup
+		[info->SocketId] [info->MemChannelId] [info->DimmId];
+	if (spdAddress == 0)
+		return AGESA_ERROR;
+	int err = hudson_readSpd(spdAddress, (void *) info->Buffer, 128);
+	if (err)
+		return AGESA_ERROR;
+	return AGESA_SUCCESS;
+}
diff --git a/src/northbridge/amd/pi/00660F01/northbridge.c b/src/northbridge/amd/pi/00660F01/northbridge.c
new file mode 100644
index 0000000..c066266
--- /dev/null
+++ b/src/northbridge/amd/pi/00660F01/northbridge.c
@@ -0,0 +1,1155 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Advanced Micro Devices, Inc.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <console/console.h>
+#include <arch/io.h>
+#include <arch/acpi.h>
+#include <stdint.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/hypertransport.h>
+#include <stdlib.h>
+#include <string.h>
+#include <lib.h>
+#include <cpu/cpu.h>
+#include <cbmem.h>
+
+#include <Porting.h>
+#include <AGESA.h>
+#include <FieldAccessors.h>
+#include <Options.h>
+#include <Topology.h>
+#include <cpu/amd/amdfam15.h>
+#include <cpuRegisters.h>
+#include <northbridge/amd/pi/agesawrapper.h>
+#include <northbridge/amd/pi/agesawrapper_call.h>
+#include "northbridge.h"
+
+#include <cpu/x86/lapic.h>
+#include <cpu/amd/mtrr.h>
+#include <arch/acpi.h>
+#include <arch/acpigen.h>
+
+#define MAX_NODE_NUMS (MAX_NODES * MAX_DIES)
+
+#if (defined CONFIG_EXT_CONF_SUPPORT) && CONFIG_EXT_CONF_SUPPORT == 1
+#error CONFIG_EXT_CONF_SUPPORT == 1 not support anymore!
+#endif
+
+typedef struct dram_base_mask {
+	u32 base; //[47:27] at [28:8]
+	u32 mask; //[47:27] at [28:8] and enable at bit 0
+} dram_base_mask_t;
+
+static unsigned node_nums;
+static unsigned sblink;
+static device_t __f0_dev[MAX_NODE_NUMS];
+static device_t __f1_dev[MAX_NODE_NUMS];
+static device_t __f2_dev[MAX_NODE_NUMS];
+static device_t __f4_dev[MAX_NODE_NUMS];
+static unsigned fx_devs = 0;
+
+static dram_base_mask_t get_dram_base_mask(u32 nodeid)
+{
+	device_t dev;
+	dram_base_mask_t d;
+	dev = __f1_dev[0];
+	u32 temp;
+	temp = pci_read_config32(dev, 0x44 + (nodeid << 3)); //[39:24] at [31:16]
+	d.mask = ((temp & 0xfff80000) >> (8 + 3)); // mask out  DramMask [26:24] too
+	temp = pci_read_config32(dev, 0x144 + (nodeid << 3)) & 0xff; //[47:40] at [7:0]
+	d.mask |= temp << 21;
+	temp = pci_read_config32(dev, 0x40 + (nodeid << 3)); //[39:24] at [31:16]
+	d.mask |= (temp & 1); // enable bit
+	d.base = ((temp & 0xfff80000) >> (8 + 3)); // mask out DramBase [26:24) too
+	temp = pci_read_config32(dev, 0x140 + (nodeid << 3)) & 0xff; //[47:40] at [7:0]
+	d.base |= temp << 21;
+	return d;
+}
+
+static void set_io_addr_reg(device_t dev, u32 nodeid, u32 linkn, u32 reg,
+			u32 io_min, u32 io_max)
+{
+	u32 i;
+	u32 tempreg;
+	/* io range allocation */
+	tempreg = (nodeid & 0xf) | ((nodeid & 0x30) << (8 - 4)) | (linkn << 4) | ((io_max & 0xf0)<<(12 - 4)); //limit
+	for (i = 0; i < node_nums; i++)
+		pci_write_config32(__f1_dev[i], reg + 4, tempreg);
+	tempreg = 3 | ((io_min & 0xf0) << (12 - 4)); //base :ISA and VGA ?
+	for (i = 0; i < node_nums; i++)
+		pci_write_config32(__f1_dev[i], reg, tempreg);
+}
+
+static void set_mmio_addr_reg(u32 nodeid, u32 linkn, u32 reg, u32 index, u32 mmio_min, u32 mmio_max, u32 nodes)
+{
+	u32 i;
+	u32 tempreg;
+	/* io range allocation */
+	tempreg = (nodeid&0xf) | (linkn<<4) |	 (mmio_max&0xffffff00); //limit
+	for (i=0; i<nodes; i++)
+		pci_write_config32(__f1_dev[i], reg+4, tempreg);
+	tempreg = 3 | (nodeid & 0x30) | (mmio_min&0xffffff00);
+	for (i=0; i<node_nums; i++)
+		pci_write_config32(__f1_dev[i], reg, tempreg);
+}
+
+static device_t get_node_pci(u32 nodeid, u32 fn)
+{
+#if MAX_NODE_NUMS + CONFIG_CDB >= 32
+	if ((CONFIG_CDB + nodeid) < 32) {
+		return dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB + nodeid, fn));
+	} else {
+		return dev_find_slot(CONFIG_CBB-1, PCI_DEVFN(CONFIG_CDB + nodeid - 32, fn));
+	}
+#else
+	return dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB + nodeid, fn));
+#endif
+}
+
+static void get_fx_devs(void)
+{
+	int i;
+	for (i = 0; i < MAX_NODE_NUMS; i++) {
+		__f0_dev[i] = get_node_pci(i, 0);
+		__f1_dev[i] = get_node_pci(i, 1);
+		__f2_dev[i] = get_node_pci(i, 2);
+		__f4_dev[i] = get_node_pci(i, 4);
+		if (__f0_dev[i] != NULL && __f1_dev[i] != NULL)
+			fx_devs = i+1;
+	}
+	if (__f1_dev[0] == NULL || __f0_dev[0] == NULL || fx_devs == 0) {
+		die("Cannot find 0:0x18.[0|1]\n");
+	}
+	printk(BIOS_DEBUG, "fx_devs=0x%x\n", fx_devs);
+}
+
+static u32 f1_read_config32(unsigned reg)
+{
+	if (fx_devs == 0)
+		get_fx_devs();
+	return pci_read_config32(__f1_dev[0], reg);
+}
+
+static void f1_write_config32(unsigned reg, u32 value)
+{
+	int i;
+	if (fx_devs == 0)
+		get_fx_devs();
+	for(i = 0; i < fx_devs; i++) {
+		device_t dev;
+		dev = __f1_dev[i];
+		if (dev && dev->enabled) {
+			pci_write_config32(dev, reg, value);
+		}
+	}
+}
+
+static u32 amdfam15_nodeid(device_t dev)
+{
+#if MAX_NODE_NUMS == 64
+	unsigned busn;
+	busn = dev->bus->secondary;
+	if (busn != CONFIG_CBB) {
+		return (dev->path.pci.devfn >> 3) - CONFIG_CDB + 32;
+	} else {
+		return (dev->path.pci.devfn >> 3) - CONFIG_CDB;
+	}
+
+#else
+	return (dev->path.pci.devfn >> 3) - CONFIG_CDB;
+#endif
+}
+
+static void set_vga_enable_reg(u32 nodeid, u32 linkn)
+{
+	u32 val;
+
+	val =  1 | (nodeid << 4) | (linkn<<12);
+	/* it will routing
+	 * (1)mmio 0xa0000:0xbffff
+	 * (2)io   0x3b0:0x3bb, 0x3c0:0x3df
+	 */
+	f1_write_config32(0xf4, val);
+
+}
+
+/**
+ * @return
+ *  @retval 2  resoure does not exist, usable
+ *  @retval 0  resource exists, not usable
+ *  @retval 1  resource exist, resource has been allocated before
+ */
+static int reg_useable(unsigned reg, device_t goal_dev, unsigned goal_nodeid,
+			unsigned goal_link)
+{
+	struct resource *res;
+	unsigned nodeid, link = 0;
+	int result;
+	res = 0;
+	for (nodeid = 0; !res && (nodeid < fx_devs); nodeid++) {
+		device_t dev;
+		dev = __f0_dev[nodeid];
+		if (!dev)
+			continue;
+		for (link = 0; !res && (link < 8); link++)
+			res = probe_resource(dev, IOINDEX(0x1000 + reg, link));
+	}
+
+	if (!res)
+		result = 2;
+	else if ((goal_link == (link - 1)) &&
+			(goal_nodeid == (nodeid - 1)) &&
+			(res->flags <= 1)) {
+		result = 1;
+	}
+	else
+		result = 0;
+
+	return result;
+}
+
+static struct resource *amdfam15_find_iopair(device_t dev, unsigned nodeid, unsigned link)
+{
+	struct resource *resource;
+	u32 free_reg, reg;
+	resource = 0;
+	free_reg = 0;
+	for (reg = 0xc0; reg <= 0xd8; reg += 0x8) {
+		int result;
+		result = reg_useable(reg, dev, nodeid, link);
+		if (result >= 1) {
+			free_reg = reg;
+		}
+		if (result == 1) {
+			/* resource allocated */
+			break;
+		}
+	}
+	resource = new_resource(dev, IOINDEX(0x1000 + free_reg, link));
+	return resource;
+}
+
+static struct resource *amdfam15_find_mempair(device_t dev, u32 nodeid, u32 link)
+{
+	struct resource *resource;
+	u32 free_reg, reg;
+	resource = 0;
+	free_reg = 0;
+	for (reg = 0x80; reg <= 0xb8; reg += 0x8) {
+		int result;
+		result = reg_useable(reg, dev, nodeid, link);
+		if (result >= 1) {
+			free_reg = reg;
+		}
+		if (result == 1) {
+			/* I have been allocated this one */
+			break;
+		}
+	}
+	resource = new_resource(dev, IOINDEX(0x1000 + free_reg, link));
+	return resource;
+}
+
+static void amdfam15_link_read_bases(device_t dev, u32 nodeid, u32 link)
+{
+	struct resource *resource;
+
+	/* Initialize the io space constraints on the current bus */
+	resource = amdfam15_find_iopair(dev, nodeid, link);
+	if (resource) {
+		resource->base	= 0;
+		resource->size	= 0;
+		resource->align = log2(HT_IO_HOST_ALIGN);
+		resource->gran	= log2(HT_IO_HOST_ALIGN);
+		resource->limit = 0xffffUL;
+		resource->flags = IORESOURCE_IO | IORESOURCE_BRIDGE;
+	}
+
+	/* Initialize the prefetchable memory constraints on the current bus */
+	resource = amdfam15_find_mempair(dev, nodeid, link);
+	if (resource) {
+		resource->base = 0;
+		resource->size = 0;
+		resource->align = log2(HT_MEM_HOST_ALIGN);
+		resource->gran = log2(HT_MEM_HOST_ALIGN);
+		resource->limit = 0xffffffffffULL;
+		resource->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
+		resource->flags |= IORESOURCE_BRIDGE;
+	}
+
+	/* Initialize the memory constraints on the current bus */
+	resource = amdfam15_find_mempair(dev, nodeid, link);
+	if (resource) {
+		resource->base = 0;
+		resource->size = 0;
+		resource->align = log2(HT_MEM_HOST_ALIGN);
+		resource->gran = log2(HT_MEM_HOST_ALIGN);
+		resource->limit = 0xffffffffffULL;
+		resource->flags = IORESOURCE_MEM | IORESOURCE_BRIDGE;
+	}
+
+}
+
+static void read_resources(device_t dev)
+{
+	u32 nodeid;
+	struct bus *link;
+
+	nodeid = amdfam15_nodeid(dev);
+	for (link = dev->link_list; link; link = link->next) {
+		if (link->children) {
+			amdfam15_link_read_bases(dev, nodeid, link->link_num);
+		}
+	}
+}
+
+static void set_resource(device_t dev, struct resource *resource, u32 nodeid)
+{
+	resource_t rbase, rend;
+	unsigned reg, link_num;
+	char buf[50];
+
+	/* Make certain the resource has actually been set */
+	if (!(resource->flags & IORESOURCE_ASSIGNED))
+		return;
+
+	/* If I have already stored this resource don't worry about it */
+	if (resource->flags & IORESOURCE_STORED)
+		return;
+
+	/* Only handle PCI memory and IO resources */
+	if (!(resource->flags & (IORESOURCE_MEM | IORESOURCE_IO)))
+		return;
+
+	/* Ensure I am actually looking at a resource of function 1 */
+	if ((resource->index & 0xffff) < 0x1000)
+		return;
+
+	/* Get the base address */
+	rbase = resource->base;
+
+	/* Get the limit (rounded up) */
+	rend  = resource_end(resource);
+
+	/* Get the register and link */
+	reg  = resource->index & 0xfff; // 4k
+	link_num = IOINDEX_LINK(resource->index);
+
+	if (resource->flags & IORESOURCE_IO) {
+		set_io_addr_reg(dev, nodeid, link_num, reg, rbase>>8, rend>>8);
+	}
+	else if (resource->flags & IORESOURCE_MEM) {
+		set_mmio_addr_reg(nodeid, link_num, reg, (resource->index >>24), rbase>>8, rend>>8, node_nums) ;// [39:8]
+	}
+	resource->flags |= IORESOURCE_STORED;
+	snprintf(buf, sizeof(buf), " <node %x link %x>",
+			nodeid, link_num);
+	report_resource_stored(dev, resource, buf);
+}
+
+/**
+ * I tried to reuse the resource allocation code in set_resource()
+ * but it is too difficult to deal with the resource allocation magic.
+ */
+
+static void create_vga_resource(device_t dev, unsigned nodeid)
+{
+	struct bus *link;
+
+	/* find out which link the VGA card is connected,
+	 * we only deal with the 'first' vga card */
+	for (link = dev->link_list; link; link = link->next) {
+		if (link->bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
+#if CONFIG_MULTIPLE_VGA_ADAPTERS
+			extern device_t vga_pri; // the primary vga device, defined in device.c
+			printk(BIOS_DEBUG, "VGA: vga_pri bus num = %d bus range [%d,%d]\n", vga_pri->bus->secondary,
+					link->secondary,link->subordinate);
+			/* We need to make sure the vga_pri is under the link */
+			if((vga_pri->bus->secondary >= link->secondary ) &&
+					(vga_pri->bus->secondary <= link->subordinate )
+			  )
+#endif
+				break;
+		}
+	}
+
+	/* no VGA card installed */
+	if (link == NULL)
+		return;
+
+	printk(BIOS_DEBUG, "VGA: %s (aka node %d) link %d has VGA device\n", dev_path(dev), nodeid, sblink);
+	set_vga_enable_reg(nodeid, sblink);
+}
+
+static void set_resources(device_t dev)
+{
+	unsigned nodeid;
+	struct bus *bus;
+	struct resource *res;
+
+	/* Find the nodeid */
+	nodeid = amdfam15_nodeid(dev);
+
+	/* do we need this? */
+	create_vga_resource(dev, nodeid);
+
+	/* Set each resource we have found */
+	for (res = dev->resource_list; res; res = res->next) {
+		set_resource(dev, res, nodeid);
+	}
+
+	for (bus = dev->link_list; bus; bus = bus->next) {
+		if (bus->children) {
+			assign_resources(bus);
+		}
+	}
+}
+
+static void northbridge_init(struct device *dev)
+{
+}
+
+static unsigned long acpi_fill_hest(acpi_hest_t *hest)
+{
+	void *addr, *current;
+
+	/* Skip the HEST header. */
+	current = (void *)(hest + 1);
+
+	addr = agesawrapper_getlateinitptr(PICK_WHEA_MCE);
+	if (addr != NULL)
+		current += acpi_create_hest_error_source(hest, current, 0, (void *)((u32)addr + 2), *(UINT16 *)addr - 2);
+
+	addr = agesawrapper_getlateinitptr(PICK_WHEA_CMC);
+	if (addr != NULL)
+		current += acpi_create_hest_error_source(hest, current, 1, (void *)((u32)addr + 2), *(UINT16 *)addr - 2);
+
+	return (unsigned long)current;
+}
+
+static void northbridge_fill_ssdt_generator(device_t device)
+{
+	msr_t msr;
+	char pscope[] = "\\_SB.PCI0";
+
+	acpigen_write_scope(pscope);
+	msr = rdmsr(TOP_MEM);
+	acpigen_write_name_dword("TOM1", msr.lo);
+	msr = rdmsr(TOP_MEM2);
+	/*
+	 * Since XP only implements parts of ACPI 2.0, we can't use a qword
+	 * here.
+	 * See http://www.acpi.info/presentations/S01USMOBS169_OS%2520new.ppt
+	 * slide 22ff.
+	 * Shift value right by 20 bit to make it fit into 32bit,
+	 * giving us 1MB granularity and a limit of almost 4Exabyte of memory.
+	 */
+	acpigen_write_name_dword("TOM2", (msr.hi << 12) | msr.lo >> 20);
+	acpigen_pop_len();
+}
+
+static unsigned long agesa_write_acpi_tables(device_t device,
+					     unsigned long current,
+					     acpi_rsdp_t *rsdp)
+{
+	acpi_srat_t *srat;
+	acpi_slit_t *slit;
+	acpi_header_t *ssdt;
+	acpi_header_t *alib;
+	acpi_header_t *ivrs;
+	acpi_hest_t *hest;
+
+	/* HEST */
+	current = ALIGN(current, 8);
+	hest = (acpi_hest_t *)current;
+	acpi_write_hest((void *)current, acpi_fill_hest);
+	acpi_add_table(rsdp, (void *)current);
+	current += ((acpi_header_t *)current)->length;
+
+	current = ALIGN(current, 8);
+	printk(BIOS_DEBUG, "ACPI:    * IVRS at %lx\n", current);
+	ivrs = agesawrapper_getlateinitptr(PICK_IVRS);
+	if (ivrs != NULL) {
+		memcpy((void *)current, ivrs, ivrs->length);
+		ivrs = (acpi_header_t *) current;
+		current += ivrs->length;
+		acpi_add_table(rsdp, ivrs);
+	} else {
+		printk(BIOS_DEBUG, "  AGESA IVRS table NULL. Skipping.\n");
+	}
+
+	/* SRAT */
+	current = ALIGN(current, 8);
+	printk(BIOS_DEBUG, "ACPI:    * SRAT at %lx\n", current);
+	srat = (acpi_srat_t *) agesawrapper_getlateinitptr (PICK_SRAT);
+	if (srat != NULL) {
+		memcpy((void *)current, srat, srat->header.length);
+		srat = (acpi_srat_t *) current;
+		current += srat->header.length;
+		acpi_add_table(rsdp, srat);
+	} else {
+		printk(BIOS_DEBUG, "  AGESA SRAT table NULL. Skipping.\n");
+	}
+
+	/* SLIT */
+	current = ALIGN(current, 8);
+	printk(BIOS_DEBUG, "ACPI:   * SLIT at %lx\n", current);
+	slit = (acpi_slit_t *) agesawrapper_getlateinitptr (PICK_SLIT);
+	if (slit != NULL) {
+		memcpy((void *)current, slit, slit->header.length);
+		slit = (acpi_slit_t *) current;
+		current += slit->header.length;
+		acpi_add_table(rsdp, slit);
+	} else {
+		printk(BIOS_DEBUG, "  AGESA SLIT table NULL. Skipping.\n");
+	}
+
+	/* ALIB */
+	current = ALIGN(current, 16);
+	printk(BIOS_DEBUG, "ACPI:  * AGESA ALIB SSDT at %lx\n", current);
+	alib = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_ALIB);
+	if (alib != NULL) {
+		memcpy((void *)current, alib, alib->length);
+		alib = (acpi_header_t *) current;
+		current += alib->length;
+		acpi_add_table(rsdp, (void *)alib);
+	}
+	else {
+		printk(BIOS_DEBUG, "	AGESA ALIB SSDT table NULL. Skipping.\n");
+	}
+
+	/* this pstate ssdt may cause Blue Screen: Fixed: Keep this comment for a while. */
+	/* SSDT */
+	current   = ALIGN(current, 16);
+	printk(BIOS_DEBUG, "ACPI:    * SSDT at %lx\n", current);
+	ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE);
+	if (ssdt != NULL) {
+		memcpy((void *)current, ssdt, ssdt->length);
+		ssdt = (acpi_header_t *) current;
+		current += ssdt->length;
+	}
+	else {
+		printk(BIOS_DEBUG, "  AGESA PState table NULL. Skipping.\n");
+	}
+	acpi_add_table(rsdp,ssdt);
+
+	printk(BIOS_DEBUG, "ACPI:    * SSDT for PState at %lx\n", current);
+	return current;
+}
+
+static struct device_operations northbridge_operations = {
+	.read_resources	  = read_resources,
+	.set_resources	  = set_resources,
+	.enable_resources = pci_dev_enable_resources,
+	.init		  = northbridge_init,
+	.acpi_fill_ssdt_generator = northbridge_fill_ssdt_generator,
+	.write_acpi_tables = agesa_write_acpi_tables,
+	.enable		  = 0,
+	.ops_pci	  = 0,
+};
+
+static const struct pci_driver family15_northbridge __pci_driver = {
+	.ops	= &northbridge_operations,
+	.vendor = PCI_VENDOR_ID_AMD,
+	.device = PCI_DEVICE_ID_AMD_15H_MODEL_006F_NB_HT,
+};
+
+static void fam15_finalize(void *chip_info)
+{
+	device_t dev;
+	u32 value;
+	dev = dev_find_slot(0, PCI_DEVFN(0, 0)); /* clear IoapicSbFeatureEn */
+	pci_write_config32(dev, 0xF8, 0);
+	pci_write_config32(dev, 0xFC, 5); /* TODO: move it to dsdt.asl */
+
+	/* disable No Snoop */
+	dev = dev_find_slot(0, PCI_DEVFN(1, 1));
+	value = pci_read_config32(dev, 0x60);
+	value &= ~(1 << 11);
+	pci_write_config32(dev, 0x60, value);
+}
+
+struct chip_operations northbridge_amd_pi_00660F01_ops = {
+	CHIP_NAME("AMD FAM15 Northbridge")
+	.enable_dev = 0,
+	.final = fam15_finalize,
+};
+
+static void domain_read_resources(device_t dev)
+{
+	unsigned reg;
+
+	/* Find the already assigned resource pairs */
+	get_fx_devs();
+	for (reg = 0x80; reg <= 0xd8; reg += 0x08) {
+		u32 base, limit;
+		base = f1_read_config32(reg);
+		limit = f1_read_config32(reg + 0x04);
+		/* Is this register allocated? */
+		if ((base & 3) != 0) {
+			unsigned nodeid, reg_link;
+			device_t reg_dev;
+			if (reg < 0xc0) { // mmio
+				nodeid = (limit & 0xf) + (base & 0x30);
+			} else { // io
+				nodeid =  (limit & 0xf) + ((base >> 4) & 0x30);
+			}
+			reg_link = (limit >> 4) & 7;
+			reg_dev = __f0_dev[nodeid];
+			if (reg_dev) {
+				/* Reserve the resource  */
+				struct resource *res;
+				res = new_resource(reg_dev, IOINDEX(0x1000 + reg, reg_link));
+				if (res) {
+					res->flags = 1;
+				}
+			}
+		}
+	}
+	/* FIXME: do we need to check extend conf space?
+	   I don't believe that much preset value */
+
+	pci_domain_read_resources(dev);
+}
+
+static void domain_enable_resources(device_t dev)
+{
+	if (acpi_is_wakeup_s3())
+		AGESAWRAPPER(fchs3laterestore);
+
+	/* Must be called after PCI enumeration and resource allocation */
+	if (!acpi_is_wakeup_s3())
+		AGESAWRAPPER(amdinitmid);
+
+	printk(BIOS_DEBUG, "  ader - leaving domain_enable_resources.\n");
+}
+
+#if CONFIG_HW_MEM_HOLE_SIZEK != 0
+struct hw_mem_hole_info {
+	unsigned hole_startk;
+	int node_id;
+};
+static struct hw_mem_hole_info get_hw_mem_hole_info(void)
+{
+	struct hw_mem_hole_info mem_hole;
+	int i;
+	mem_hole.hole_startk = CONFIG_HW_MEM_HOLE_SIZEK;
+	mem_hole.node_id = -1;
+	for (i = 0; i < node_nums; i++) {
+		dram_base_mask_t d;
+		u32 hole;
+		d = get_dram_base_mask(i);
+		if (!(d.mask & 1)) continue; // no memory on this node
+		hole = pci_read_config32(__f1_dev[i], 0xf0);
+		if (hole & 2) {
+			/* we find the hole */
+			mem_hole.hole_startk = (hole & (0xff<<24)) >> 10;
+			mem_hole.node_id = i; // record the node No with hole
+			break; // only one hole
+		}
+	}
+
+	/* We need to double check if there is special set on base reg and limit reg
+	 * are not continuous instead of hole, it will find out its hole_startk.
+	 */
+	if (mem_hole.node_id == -1) {
+		resource_t limitk_pri = 0;
+		for (i = 0; i < node_nums; i++) {
+			dram_base_mask_t d;
+			resource_t base_k, limit_k;
+			d = get_dram_base_mask(i);
+			if (!(d.base & 1))
+				continue;
+			base_k = ((resource_t)(d.base & 0x1fffff00)) <<9;
+			if (base_k > 4 *1024 * 1024) break; // don't need to go to check
+			if (limitk_pri != base_k) { // we find the hole
+				mem_hole.hole_startk = (unsigned)limitk_pri; // must beblow 4G
+				mem_hole.node_id = i;
+				break; //only one hole
+			}
+			limit_k = ((resource_t)(((d.mask & ~1) + 0x000FF) & 0x1fffff00)) << 9;
+			limitk_pri = limit_k;
+		}
+	}
+	return mem_hole;
+}
+#endif
+
+#define ONE_MB_SHIFT  20
+#define ONE_GB_SHIFT  30
+
+static void setup_uma_memory(void)
+{
+#if CONFIG_GFXUMA
+	uint64_t topmem = bsp_topmem();
+	uint64_t topmem2 = bsp_topmem2();
+	uint32_t sysmem_mb, sysmem_gb;
+
+	/* refer to UMA_AUTO size computation in Family15h BKDG. */
+	/* Please reference MemNGetUmaSizeML() */
+	/*
+	 *     Total system memory   UMASize
+	 *     >= 6G                  1024M
+	 *     >= 4G                   512M
+	 *     >= 2G                   256M
+	 *     < 2G                    128M
+	 */
+
+	sysmem_mb = (topmem + (16ull << ONE_MB_SHIFT)) >> ONE_MB_SHIFT;   // Ignore 16MB allocated for C6 when finding UMA size
+	sysmem_mb += topmem2 ? ((topmem2 >> ONE_MB_SHIFT) - 4096) : 0;
+	sysmem_gb = sysmem_mb >> (ONE_GB_SHIFT - ONE_MB_SHIFT);
+	printk(BIOS_SPEW, "%s: system memory size %luGB, topmem2 size %lluMB, topmem size %lluMB\n",
+			__func__, (unsigned long)sysmem_gb, (topmem2 >> ONE_MB_SHIFT), (topmem >> ONE_MB_SHIFT));
+	if (sysmem_gb >= 6) {
+		uma_memory_size = 1024 << ONE_MB_SHIFT;
+	} else if (sysmem_gb >= 4) {
+		uma_memory_size = 512 << ONE_MB_SHIFT;
+	} else if (sysmem_gb >= 2) {
+		uma_memory_size = 256 << ONE_MB_SHIFT;
+	} else {
+		uma_memory_size = 128 << ONE_MB_SHIFT;
+	}
+	uma_memory_base = topmem - uma_memory_size; /* TOP_MEM1 */
+
+	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
+			__func__, uma_memory_size, uma_memory_base);
+
+	/* TODO: TOP_MEM2 */
+#endif
+}
+
+
+static void domain_set_resources(device_t dev)
+{
+	unsigned long mmio_basek;
+	u32 pci_tolm;
+	u64 ramtop = 0;
+	int i, idx;
+	struct bus *link;
+#if CONFIG_HW_MEM_HOLE_SIZEK != 0
+	struct hw_mem_hole_info mem_hole;
+	u32 reset_memhole = 1;
+#endif
+
+	pci_tolm = 0xffffffffUL;
+	for (link = dev->link_list; link; link = link->next) {
+		pci_tolm = find_pci_tolm(link);
+	}
+
+	mmio_basek = pci_tolm >> 10;
+	/* Round mmio_basek to something the processor can support */
+	mmio_basek &= ~((1 << 6) -1);
+
+	/* FIXME improve mtrr.c so we don't use up all of the mtrrs with a 64M
+	 * MMIO hole. If you fix this here, please fix amdk8, too.
+	*/
+	/* Round the mmio hole to 64M */
+	mmio_basek &= ~((64*1024) - 1);
+
+#if CONFIG_HW_MEM_HOLE_SIZEK != 0
+	/* if the hw mem hole is already set in raminit stage, here we will compare
+	 * mmio_basek and hole_basek. if mmio_basek is bigger that hole_basek and will
+	 * use hole_basek as mmio_basek and we don't need to reset hole.
+	 * otherwise We reset the hole to the mmio_basek
+	 */
+
+	mem_hole = get_hw_mem_hole_info();
+
+	/* Use hole_basek as mmio_basek, and we don't need to reset hole anymore */
+	if ((mem_hole.node_id !=  -1) && (mmio_basek > mem_hole.hole_startk)) {
+		mmio_basek = mem_hole.hole_startk;
+		reset_memhole = 0;
+	}
+#endif
+
+	idx = 0x10;
+	for (i = 0; i < node_nums; i++) {
+		dram_base_mask_t d;
+		resource_t basek, limitk, sizek; // 4 1T
+
+		d = get_dram_base_mask(i);
+
+		if (!(d.mask & 1))
+			continue;
+		basek = ((resource_t)(d.base & 0x1fffff00)) << 9; // could overflow, we may lost 6 bit here
+		limitk = ((resource_t)(((d.mask & ~1) + 0x000FF) & 0x1fffff00)) << 9 ;
+
+		sizek = limitk - basek;
+
+		/* see if we need a hole from 0xa0000 to 0xbffff */
+		if ((basek < ((8*64)+(8*16))) && (sizek > ((8*64)+(16*16)))) {
+			ram_resource(dev, (idx | i), basek, ((8*64)+(8*16)) - basek);
+			idx += 0x10;
+			basek = (8*64)+(16*16);
+			sizek = limitk - ((8*64)+(16*16));
+
+		}
+
+		/* split the region to accommodate pci memory space */
+		if ((basek < 4*1024*1024 ) && (limitk > mmio_basek)) {
+			if (basek <= mmio_basek) {
+				unsigned pre_sizek;
+				pre_sizek = mmio_basek - basek;
+				if (pre_sizek>0) {
+					ram_resource(dev, (idx | i), basek, pre_sizek);
+					idx += 0x10;
+					sizek -= pre_sizek;
+					if (!ramtop)
+						ramtop = mmio_basek * 1024;
+				}
+				basek = mmio_basek;
+			}
+			if ((basek + sizek) <= 4*1024*1024) {
+				sizek = 0;
+			}
+			else {
+				uint64_t topmem2 = bsp_topmem2();
+				basek = 4*1024*1024;
+				sizek = topmem2/1024 - basek;
+			}
+		}
+
+		ram_resource(dev, (idx | i), basek, sizek);
+		idx += 0x10;
+		printk(BIOS_DEBUG, "node %d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n",
+				i, mmio_basek, basek, limitk);
+		if (!ramtop)
+			ramtop = limitk * 1024;
+	}
+
+#if CONFIG_GFXUMA
+	set_top_of_ram(uma_memory_base);
+	uma_resource(dev, 7, uma_memory_base >> 10, uma_memory_size >> 10);
+#else
+	set_top_of_ram(ramtop);
+#endif
+
+	for(link = dev->link_list; link; link = link->next) {
+		if (link->children) {
+			assign_resources(link);
+		}
+	}
+}
+
+static struct device_operations pci_domain_ops = {
+	.read_resources	  = domain_read_resources,
+	.set_resources	  = domain_set_resources,
+	.enable_resources = domain_enable_resources,
+	.init		  = NULL,
+	.scan_bus	  = pci_domain_scan_bus,
+	.ops_pci_bus	  = pci_bus_default_ops,
+};
+
+static void sysconf_init(device_t dev) // first node
+{
+	sblink = (pci_read_config32(dev, 0x64)>>8) & 7; // don't forget sublink1
+	node_nums = ((pci_read_config32(dev, 0x60)>>4) & 7) + 1; // NodeCnt[2:0]
+}
+
+static void add_more_links(device_t dev, unsigned total_links)
+{
+	struct bus *link, *last = NULL;
+	int link_num;
+
+	for (link = dev->link_list; link; link = link->next)
+		last = link;
+
+	if (last) {
+		int links = total_links - last->link_num;
+		link_num = last->link_num;
+		if (links > 0) {
+			link = malloc(links*sizeof(*link));
+			if (!link)
+				die("Couldn't allocate more links!\n");
+			memset(link, 0, links*sizeof(*link));
+			last->next = link;
+		}
+	}
+	else {
+		link_num = -1;
+		link = malloc(total_links*sizeof(*link));
+		memset(link, 0, total_links*sizeof(*link));
+		dev->link_list = link;
+	}
+
+	for (link_num = link_num + 1; link_num < total_links; link_num++) {
+		link->link_num = link_num;
+		link->dev = dev;
+		link->next = link + 1;
+		last = link;
+		link = link->next;
+	}
+	last->next = NULL;
+}
+
+static void cpu_bus_scan(device_t dev)
+{
+	struct bus *cpu_bus;
+	device_t dev_mc;
+#if CONFIG_CBB
+	device_t pci_domain;
+#endif
+	int i,j;
+	int coreid_bits;
+	int core_max = 0;
+	unsigned ApicIdCoreIdSize;
+	unsigned core_nums;
+	int siblings = 0;
+	unsigned int family;
+	u32 modules = 0;
+	VOID* modules_ptr = &modules;
+	BUILD_OPT_CFG* options = NULL;
+	int ioapic_count = 0;
+
+	AmdGetValue(AMD_GLOBAL_USER_OPTIONS, (VOID**)&options, sizeof(options));
+	AmdGetValue(AMD_GLOBAL_NUM_MODULES, &modules_ptr, sizeof(modules));
+	modules = (*(u32*)modules_ptr) && ((1ull << (sizeof(modules) * 8)) - 1);
+	ASSERT(modules > 0);
+	ASSERT(options);
+	ioapic_count = (int)options->CfgPlatNumIoApics;
+	ASSERT(ioapic_count > 0);
+
+#if CONFIG_CBB
+	dev_mc = dev_find_slot(0, PCI_DEVFN(CONFIG_CDB, 0)); //0x00
+	if (dev_mc && dev_mc->bus) {
+		printk(BIOS_DEBUG, "%s found", dev_path(dev_mc));
+		pci_domain = dev_mc->bus->dev;
+		if (pci_domain && (pci_domain->path.type == DEVICE_PATH_DOMAIN)) {
+			printk(BIOS_DEBUG, "\n%s move to ",dev_path(dev_mc));
+			dev_mc->bus->secondary = CONFIG_CBB; // move to 0xff
+			printk(BIOS_DEBUG, "%s",dev_path(dev_mc));
+		} else {
+			printk(BIOS_DEBUG, " but it is not under pci_domain directly ");
+		}
+		printk(BIOS_DEBUG, "\n");
+	}
+	dev_mc = dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB, 0));
+	if (!dev_mc) {
+		dev_mc = dev_find_slot(0, PCI_DEVFN(0x18, 0));
+		if (dev_mc && dev_mc->bus) {
+			printk(BIOS_DEBUG, "%s found\n", dev_path(dev_mc));
+			pci_domain = dev_mc->bus->dev;
+			if (pci_domain && (pci_domain->path.type == DEVICE_PATH_DOMAIN)) {
+				if ((pci_domain->link_list) && (pci_domain->link_list->children == dev_mc)) {
+					printk(BIOS_DEBUG, "%s move to ",dev_path(dev_mc));
+					dev_mc->bus->secondary = CONFIG_CBB; // move to 0xff
+					printk(BIOS_DEBUG, "%s\n",dev_path(dev_mc));
+					while (dev_mc) {
+						printk(BIOS_DEBUG, "%s move to ",dev_path(dev_mc));
+						dev_mc->path.pci.devfn -= PCI_DEVFN(0x18,0);
+						printk(BIOS_DEBUG, "%s\n",dev_path(dev_mc));
+						dev_mc = dev_mc->sibling;
+					}
+				}
+			}
+		}
+	}
+#endif
+	dev_mc = dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB, 0));
+	if (!dev_mc) {
+		printk(BIOS_ERR, "%02x:%02x.0 not found", CONFIG_CBB, CONFIG_CDB);
+		die("");
+	}
+	sysconf_init(dev_mc);
+#if CONFIG_CBB && (MAX_NODE_NUMS > 32)
+	if (node_nums > 32) {
+		/* need to put node 32 to node 63 to bus 0xfe */
+		if (pci_domain->link_list && !pci_domain->link_list->next) {
+			struct bus *new_link = new_link(pci_domain);
+			pci_domain->link_list->next = new_link;
+			new_link->link_num = 1;
+			new_link->dev = pci_domain;
+			new_link->children = 0;
+			printk(BIOS_DEBUG, "%s links now 2\n", dev_path(pci_domain));
+		}
+		pci_domain->link_list->next->secondary = CONFIG_CBB - 1;
+	}
+#endif
+
+	/* Get Max Number of cores(MNC) */
+	coreid_bits = (cpuid_ecx(AMD_CPUID_ASIZE_PCCOUNT) & 0x0000F000) >> 12;
+	core_max = 1 << (coreid_bits & 0x000F); //mnc
+
+	ApicIdCoreIdSize = ((cpuid_ecx(0x80000008)>>12) & 0xF);
+	if (ApicIdCoreIdSize) {
+		core_nums = (1 << ApicIdCoreIdSize) - 1;
+	} else {
+		core_nums = 3; //quad core
+	}
+
+	/* Find which cpus are present */
+	cpu_bus = dev->link_list;
+	for (i = 0; i < node_nums; i++) {
+		device_t cdb_dev;
+		unsigned busn, devn;
+		struct bus *pbus;
+
+		busn = CONFIG_CBB;
+		devn = CONFIG_CDB + i;
+		pbus = dev_mc->bus;
+#if CONFIG_CBB && (MAX_NODE_NUMS > 32)
+		if (i >= 32) {
+			busn--;
+			devn -= 32;
+			pbus = pci_domain->link_list->next;
+		}
+#endif
+
+		/* Find the cpu's pci device */
+		cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 0));
+		if (!cdb_dev) {
+			/* If I am probing things in a weird order
+			 * ensure all of the cpu's pci devices are found.
+			 */
+			int fn;
+			for(fn = 0; fn <= 5; fn++) { //FBDIMM?
+				cdb_dev = pci_probe_dev(NULL, pbus,
+							PCI_DEVFN(devn, fn));
+			}
+			cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 0));
+		} else {
+			/* Ok, We need to set the links for that device.
+			 * otherwise the device under it will not be scanned
+			 */
+			add_more_links(cdb_dev, 4);
+		}
+
+		family = cpuid_eax(1);
+		family = (family >> 20) & 0xFF;
+		if (family == 6 || family == 7) {
+			/* f15 and f16 */
+			cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 5));
+			if (cdb_dev && cdb_dev->enabled) {
+				siblings = pci_read_config32(cdb_dev, 0x84);
+				siblings &= 0xFF;
+			}
+		} else {
+			/* default one core */
+			siblings = 0;
+		}
+		int enable_node = cdb_dev && cdb_dev->enabled;
+		printk(BIOS_SPEW, "%s family%xh, core_max=0x%x, core_nums=0x%x, siblings=0x%x\n",
+				dev_path(cdb_dev), 0x0f + family, core_max, core_nums, siblings);
+
+		for (j = 0; j <= siblings; j++ ) {
+			u32 lapicid_start = 0;
+
+			/*
+			 * APIC ID calucation is tightly coupled with AGESA v5 code.
+			 * This calculation MUST match the assignment calculation done
+			 * in LocalApicInitializationAtEarly() function.
+			 * And reference GetLocalApicIdForCore()
+			 *
+			 * Apply apic enumeration rules
+			 * For systems with >= 16 APICs, put the IO-APICs at 0..n and
+			 * put the local-APICs at m..z
+			 *
+			 * This is needed because many IO-APIC devices only have 4 bits
+			 * for their APIC id and therefore must reside at 0..15
+                         */
+			if ((node_nums * core_max) + ioapic_count >= 0x10) {
+				lapicid_start = (ioapic_count - 1) / core_max;
+				lapicid_start = (lapicid_start + 1) * core_max;
+				printk(BIOS_SPEW, "lpaicid_start=0x%x ", lapicid_start);
+			}
+			u32 apic_id = (lapicid_start * (i/modules + 1)) + ((i % modules) ? (j + (siblings + 1)) : j);
+			printk(BIOS_SPEW, "node 0x%x core 0x%x apicid=0x%x\n",
+					i, j, apic_id);
+
+			device_t cpu = add_cpu_device(cpu_bus, apic_id, enable_node);
+			if (cpu)
+				amd_cpu_topology(cpu, i, j);
+		} //j
+	}
+}
+
+static void cpu_bus_init(device_t dev)
+{
+	initialize_cpus(dev->link_list);
+}
+
+static void cpu_bus_read_resources(device_t dev)
+{
+#if CONFIG_MMCONF_SUPPORT
+	struct resource *resource = new_resource(dev, 0xc0010058);
+	resource->base = CONFIG_MMCONF_BASE_ADDRESS;
+	resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096*256;
+	resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
+		IORESOURCE_FIXED | IORESOURCE_STORED |  IORESOURCE_ASSIGNED;
+#endif
+}
+
+static void cpu_bus_set_resources(device_t dev)
+{
+	struct resource *resource = find_resource(dev, 0xc0010058);
+	if (resource) {
+		report_resource_stored(dev, resource, " <mmconfig>");
+	}
+	pci_dev_set_resources(dev);
+}
+
+static struct device_operations cpu_bus_ops = {
+	.read_resources	  = cpu_bus_read_resources,
+	.set_resources	  = cpu_bus_set_resources,
+	.enable_resources = DEVICE_NOOP,
+	.init		  = cpu_bus_init,
+	.scan_bus	  = cpu_bus_scan,
+};
+
+static void root_complex_enable_dev(struct device *dev)
+{
+	static int done = 0;
+
+	/* Do not delay UMA setup, as a device on the PCI bus may evaluate
+	   the global uma_memory variables already in its enable function. */
+	if (!done) {
+		setup_bsp_ramtop();
+		setup_uma_memory();
+		done = 1;
+	}
+
+	/* Set the operations if it is a special bus type */
+	if (dev->path.type == DEVICE_PATH_DOMAIN) {
+		dev->ops = &pci_domain_ops;
+	} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
+		dev->ops = &cpu_bus_ops;
+	}
+}
+
+struct chip_operations northbridge_amd_pi_00660F01_root_complex_ops = {
+	CHIP_NAME("AMD FAM16 Root Complex")
+	.enable_dev = root_complex_enable_dev,
+};
+
+/*********************************************************************
+ * Change the vendor / device IDs to match the generic VBIOS header. *
+ *********************************************************************/
+u32 map_oprom_vendev(u32 vendev)
+{
+	u32 new_vendev;
+	new_vendev =
+		((0x10029870 <= vendev) && (vendev <= 0x1002987F)) ? 0x10029870 : vendev;
+
+	if (vendev != new_vendev)
+		printk(BIOS_NOTICE, "Mapping PCI device %8x to %8x\n", vendev, new_vendev);
+
+	return new_vendev;
+}
diff --git a/src/northbridge/amd/pi/00660F01/northbridge.h b/src/northbridge/amd/pi/00660F01/northbridge.h
new file mode 100644
index 0000000..4d2a90f
--- /dev/null
+++ b/src/northbridge/amd/pi/00660F01/northbridge.h
@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Advanced Micro Devices, Inc.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#ifndef NORTHBRIDGE_AMD_AGESA_FAM16H_H
+#define NORTHBRIDGE_AMD_AGESA_FAM16H_H
+
+static struct device_operations pci_domain_ops;
+static struct device_operations cpu_bus_ops;
+
+#endif /* NORTHBRIDGE_AMD_AGESA_FAM16H_H */
diff --git a/src/northbridge/amd/pi/BiosCallOuts.h b/src/northbridge/amd/pi/BiosCallOuts.h
index d5fe66f..6864f28 100644
--- a/src/northbridge/amd/pi/BiosCallOuts.h
+++ b/src/northbridge/amd/pi/BiosCallOuts.h
@@ -24,20 +24,10 @@
 #include "Porting.h"
 #include "AGESA.h"
 
-#if CONFIG_NORTHBRIDGE_AMD_PI_00630F01 || CONFIG_NORTHBRIDGE_AMD_PI_00730F01
-
 #define BIOS_HEAP_START_ADDRESS 	0x010000000
 #define BIOS_HEAP_SIZE			0x30000
 #define BSP_STACK_BASE_ADDR		0x30000
 
-#else
-
-#define BIOS_HEAP_START_ADDRESS		0x10000 /* HEAP during cold boot */
-#define BIOS_HEAP_SIZE			0x20000
-#define BSP_STACK_BASE_ADDR		0x30000
-
-#endif
-
 typedef struct _BIOS_HEAP_MANAGER {
 	UINT32 StartOfAllocatedNodes;
 	UINT32 StartOfFreedNodes;
diff --git a/src/northbridge/amd/pi/Kconfig b/src/northbridge/amd/pi/Kconfig
index 03bdd6b..950126b 100644
--- a/src/northbridge/amd/pi/Kconfig
+++ b/src/northbridge/amd/pi/Kconfig
@@ -34,5 +34,6 @@ config S3_VGA_ROM_RUN
 
 source src/northbridge/amd/pi/00630F01/Kconfig
 source src/northbridge/amd/pi/00730F01/Kconfig
+source src/northbridge/amd/pi/00660F01/Kconfig
 
 endif # NORTHBRIDGE_AMD_PI
diff --git a/src/northbridge/amd/pi/Makefile.inc b/src/northbridge/amd/pi/Makefile.inc
index de83c51..ea92035 100644
--- a/src/northbridge/amd/pi/Makefile.inc
+++ b/src/northbridge/amd/pi/Makefile.inc
@@ -21,6 +21,7 @@ ifeq ($(CONFIG_NORTHBRIDGE_AMD_PI),y)
 
 subdirs-$(CONFIG_NORTHBRIDGE_AMD_PI_00630F01) += 00630F01
 subdirs-$(CONFIG_NORTHBRIDGE_AMD_PI_00730F01) += 00730F01
+subdirs-$(CONFIG_NORTHBRIDGE_AMD_PI_00660F01) += 00660F01
 
 romstage-y += agesawrapper.c
 romstage-y += def_callouts.c
diff --git a/src/northbridge/amd/pi/agesawrapper.c b/src/northbridge/amd/pi/agesawrapper.c
index 1236932..6730c56 100644
--- a/src/northbridge/amd/pi/agesawrapper.c
+++ b/src/northbridge/amd/pi/agesawrapper.c
@@ -305,8 +305,10 @@ AGESA_STATUS agesawrapper_amdinitlate(void)
 
 	DmiTable    = AmdLateParams->DmiTable;
 	AcpiPstate  = AmdLateParams->AcpiPState;
+#if IS_ENABLED(CONFIG_NORTHBRIDGE_AMD_PI_00630F01) || IS_ENABLED(CONFIG_NORTHBRIDGE_AMD_PI_00730F01)
 	AcpiSrat    = AmdLateParams->AcpiSrat;
 	AcpiSlit    = AmdLateParams->AcpiSlit;
+#endif
 
 	AcpiWheaMce = AmdLateParams->AcpiWheaMce;
 	AcpiWheaCmc = AmdLateParams->AcpiWheaCmc;