This patch adds support for the Intel i82810 northbridge and various i82801xx

southbridges, along with the Asus MEW-VM. With this, my machine attempts to
boot linux, but does so very slowly and fails during the boot process, probably
because of the irq tables.

Signed-off-by: Corey Osgood <corey.osgood@gmail.com>
Acked-by: Joseph Smith <joe@smittys.pointclark.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2719 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

9 files changed, 673 insertions, 0 deletions

diff --git a/src/mainboard/asus/mew-vm/Config.lb b/src/mainboard/asus/mew-vm/Config.lb
new file mode 100644
index 0000000000..ade4ffd1ec
--- /dev/null
+++ b/src/mainboard/asus/mew-vm/Config.lb
@@ -0,0 +1,182 @@
+##
+## Compute the location and size of where this firmware image
+## (linuxBIOS plus bootloader) will live in the boot rom chip.
+##
+if USE_FALLBACK_IMAGE
+	default ROM_SECTION_SIZE   = FALLBACK_SIZE
+	default ROM_SECTION_OFFSET = ( ROM_SIZE - FALLBACK_SIZE )
+else
+	default ROM_SECTION_SIZE   = ( ROM_SIZE - FALLBACK_SIZE )
+	default ROM_SECTION_OFFSET = 0
+end
+
+##
+## Compute the start location and size size of
+## The linuxBIOS bootloader.
+##
+default CONFIG_ROM_PAYLOAD_START = (0xffffffff - ROM_SIZE + ROM_SECTION_OFFSET + 1)
+default PAYLOAD_SIZE            = ( ROM_SECTION_SIZE - ROM_IMAGE_SIZE )
+
+##
+## Compute where this copy of linuxBIOS will start in the boot rom
+##
+default _ROMBASE      = ( CONFIG_ROM_PAYLOAD_START + PAYLOAD_SIZE )
+
+##
+## Compute a range of ROM that can cached to speed up linuxBIOS,
+## execution speed.
+##
+## XIP_ROM_SIZE must be a power of 2.
+## XIP_ROM_BASE must be a multiple of XIP_ROM_SIZE
+##
+default XIP_ROM_SIZE=65536
+default XIP_ROM_BASE = ( _ROMBASE + ROM_IMAGE_SIZE - XIP_ROM_SIZE )
+
+##
+## Set all of the defaults for an x86 architecture
+##
+
+arch i386 end
+
+##
+## Build the objects we have code for in this directory.
+##
+
+driver mainboard.o
+
+if HAVE_PIRQ_TABLE object irq_tables.o end
+#object reset.o
+
+##
+## Romcc output
+##
+makerule ./failover.E
+	depends "$(MAINBOARD)/failover.c ./romcc" 
+	action "./romcc -E -O --label-prefix=failover -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/failover.c -o $@"
+end
+
+makerule ./failover.inc
+	depends "$(MAINBOARD)/failover.c ./romcc"
+	action "./romcc    -O --label-prefix=failover -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/failover.c -o $@"
+end
+
+makerule ./auto.E 
+	depends	"$(MAINBOARD)/auto.c option_table.h ./romcc" 
+	action	"./romcc -E -mcpu=p2 -O -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/auto.c -o $@"
+end
+makerule ./auto.inc 
+	depends "$(MAINBOARD)/auto.c option_table.h ./romcc"
+	action	"./romcc    -mcpu=p2 -O -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/auto.c -o $@"
+end
+
+##
+## Build our 16 bit and 32 bit linuxBIOS entry code
+##
+mainboardinit cpu/x86/16bit/entry16.inc
+mainboardinit cpu/x86/32bit/entry32.inc
+ldscript /cpu/x86/16bit/entry16.lds
+ldscript /cpu/x86/32bit/entry32.lds
+
+##
+## Build our reset vector (This is where linuxBIOS is entered)
+##
+if USE_FALLBACK_IMAGE 
+	mainboardinit cpu/x86/16bit/reset16.inc 
+	ldscript /cpu/x86/16bit/reset16.lds 
+else
+	mainboardinit cpu/x86/32bit/reset32.inc 
+	ldscript /cpu/x86/32bit/reset32.lds 
+end
+
+### Should this be in the northbridge code?
+mainboardinit arch/i386/lib/cpu_reset.inc
+
+##
+## Include an id string (For safe flashing)
+##
+mainboardinit arch/i386/lib/id.inc
+ldscript /arch/i386/lib/id.lds
+
+###
+### This is the early phase of linuxBIOS startup 
+### Things are delicate and we test to see if we should
+### failover to another image.
+###
+if USE_FALLBACK_IMAGE
+	ldscript /arch/i386/lib/failover.lds 
+	mainboardinit ./failover.inc
+end
+
+###
+### O.k. We aren't just an intermediary anymore!
+###
+
+##
+## Setup RAM
+##
+mainboardinit cpu/x86/fpu/enable_fpu.inc
+mainboardinit cpu/x86/mmx/enable_mmx.inc
+mainboardinit ./auto.inc
+mainboardinit cpu/x86/mmx/disable_mmx.inc
+
+##
+## Include the secondary Configuration files 
+##
+dir /pc80
+config chip.h
+
+chip northbridge/intel/i82810
+	device pci_domain 0 on 
+		device pci 0.0 on end # Host bridge
+		device pci 1.0 on # Onboard Video
+			#chip drivers/pci/onboard
+			#	device pci 1.0 on end
+			#	register "rom_address" = "0xfff80000"
+		        #end
+		end
+		chip southbridge/intel/i82801xx # Southbridge
+			device pci 1e.0 on # PCI Bridge
+				#chip drivers/pci/onboard
+				#	device pci 1.0 on end
+				#	register "rom_address" = "0xfff80000"
+			        #end
+			end
+			device pci 1f.0 on  # ISA/LPC? Bridge
+				chip superio/smsc/lpc47b272
+					device pnp 2e.0 off # Floppy
+						io 0x60 = 0x3f0
+						irq 0x70 = 6
+						drq 0x74 = 2
+					end
+					device pnp 2e.3 off # Parallel Port
+						io 0x60 = 0x378
+						irq 0x70 = 7
+					end
+					device pnp 2e.4 on # Com1
+						io 0x60 = 0x3f8
+						irq 0x70 = 4
+					end
+					device pnp 2e.5 off # Com2
+						io 0x60 = 0x2f8
+						irq 0x70 = 3
+					end
+					device pnp 2e.7 on # Keyboard
+						io 0x60 = 0x60
+						io 0x62 = 0x64
+						irq 0x70 = 1 # Keyboard interrupt
+						irq 0x72 = 12 # Mouse interrupt
+					end
+					device pnp 2e.a off end # ACPI
+				end
+			end
+			device pci 1f.1 on end # IDE
+			device pci 1f.2 on end # USB
+			device pci 1f.3 on end # SMBus
+			device pci 1f.5 off end # AC'97, no header on MEW-VM
+			device pci 1f.6 off end # AC'97 Modem (MC'97)
+		end
+	end
+	chip cpu/intel/socket_PGA370
+	end
+end
+
diff --git a/src/mainboard/asus/mew-vm/Options.lb b/src/mainboard/asus/mew-vm/Options.lb
new file mode 100644
index 0000000000..d0d37b53a6
--- /dev/null
+++ b/src/mainboard/asus/mew-vm/Options.lb
@@ -0,0 +1,159 @@
+uses HAVE_MP_TABLE
+uses HAVE_PIRQ_TABLE
+uses USE_FALLBACK_IMAGE
+uses HAVE_FALLBACK_BOOT
+uses HAVE_HARD_RESET
+uses HAVE_OPTION_TABLE
+uses USE_OPTION_TABLE
+uses CONFIG_ROM_PAYLOAD
+uses IRQ_SLOT_COUNT
+uses MAINBOARD
+uses MAINBOARD_VENDOR
+uses MAINBOARD_PART_NUMBER
+uses LINUXBIOS_EXTRA_VERSION
+uses ARCH
+uses FALLBACK_SIZE
+uses STACK_SIZE
+uses HEAP_SIZE
+uses ROM_SIZE
+uses ROM_SECTION_SIZE
+uses ROM_IMAGE_SIZE
+uses ROM_SECTION_SIZE
+uses ROM_SECTION_OFFSET
+uses CONFIG_ROM_PAYLOAD_START
+uses CONFIG_COMPRESSED_PAYLOAD_LZMA
+uses PAYLOAD_SIZE
+uses _ROMBASE
+uses _RAMBASE
+uses XIP_ROM_SIZE
+uses XIP_ROM_BASE
+uses HAVE_MP_TABLE
+uses CROSS_COMPILE
+uses CC
+uses HOSTCC
+uses OBJCOPY
+uses DEFAULT_CONSOLE_LOGLEVEL
+uses MAXIMUM_CONSOLE_LOGLEVEL
+uses CONFIG_CONSOLE_SERIAL8250
+uses TTYS0_BAUD
+uses TTYS0_BASE
+uses TTYS0_LCS
+uses CONFIG_UDELAY_TSC
+uses CONFIG_IDE
+
+## ROM_SIZE is the size of boot ROM that this board will use.
+default ROM_SIZE  = 512*1024
+
+###
+### Build options
+###
+
+##
+## Build code for the fallback boot
+##
+default HAVE_FALLBACK_BOOT = 1
+
+##
+## no MP table
+##
+default HAVE_MP_TABLE = 0
+
+##
+## Build code to reset the motherboard from linuxBIOS
+##
+default HAVE_HARD_RESET = 0
+
+##
+## Build code to export a programmable irq routing table
+##
+default HAVE_PIRQ_TABLE = 1
+default IRQ_SLOT_COUNT = 4
+
+##
+## Build code to export a CMOS option table
+##
+default HAVE_OPTION_TABLE = 0
+
+## IDE Support
+default CONFIG_IDE = 1
+
+###
+### LinuxBIOS layout values
+###
+
+## ROM_IMAGE_SIZE is the amount of space to allow linuxBIOS to occupy.
+default ROM_IMAGE_SIZE = 65536
+default FALLBACK_SIZE = 131072
+
+##
+## Use a small 8K stack
+##
+default STACK_SIZE=0x2000
+
+##
+## Use a small 16K heap
+##
+default HEAP_SIZE=0x4000
+
+##
+## Only use the option table in a normal image
+##
+#default USE_OPTION_TABLE = !USE_FALLBACK_IMAGE
+default USE_OPTION_TABLE = 0
+
+default _RAMBASE = 0x00004000
+
+default CONFIG_ROM_PAYLOAD     = 1
+
+##
+## The default compiler
+##
+default CROSS_COMPILE=""
+default CC="$(CROSS_COMPILE)gcc -m32"
+default HOSTCC="gcc"
+
+##
+## The Serial Console
+##
+
+# To Enable the Serial Console
+default CONFIG_CONSOLE_SERIAL8250=1
+
+## Select the serial console baud rate
+default TTYS0_BAUD=115200
+#default TTYS0_BAUD=57600
+#default TTYS0_BAUD=38400
+#default TTYS0_BAUD=19200
+#default TTYS0_BAUD=9600
+#default TTYS0_BAUD=4800
+#default TTYS0_BAUD=2400
+#default TTYS0_BAUD=1200
+
+# Select the serial console base port
+default TTYS0_BASE=0x3f8
+
+# Select the serial protocol
+# This defaults to 8 data bits, 1 stop bit, and no parity
+default TTYS0_LCS=0x3
+
+##
+### Select the linuxBIOS loglevel
+##
+## EMERG      1   system is unusable               
+## ALERT      2   action must be taken immediately 
+## CRIT       3   critical conditions              
+## ERR        4   error conditions                 
+## WARNING    5   warning conditions               
+## NOTICE     6   normal but significant condition 
+## INFO       7   informational                    
+## DEBUG      8   debug-level messages             
+## SPEW       9   Way too many details             
+
+## Request this level of debugging output
+default  DEFAULT_CONSOLE_LOGLEVEL=9
+## At a maximum only compile in this level of debugging
+default  MAXIMUM_CONSOLE_LOGLEVEL=9
+
+default CONFIG_UDELAY_TSC=1
+end
+
diff --git a/src/mainboard/asus/mew-vm/auto.c b/src/mainboard/asus/mew-vm/auto.c
new file mode 100644
index 0000000000..3c993f1fbe
--- /dev/null
+++ b/src/mainboard/asus/mew-vm/auto.c
@@ -0,0 +1,106 @@
+/*
+ * This file is part of the LinuxBIOS project.
+ *
+ * Copyright (C) 2007 Corey Osgood <corey@slightlyhackish.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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#define ASSEMBLY 1
+
+#include <stdint.h>
+#include <device/pci_def.h>
+#include <arch/io.h>
+#include <device/pnp_def.h>
+#include <arch/romcc_io.h>
+#include <arch/hlt.h>
+#include "pc80/serial.c"
+#include "arch/i386/lib/console.c"
+#include "ram/ramtest.c"
+#include "superio/smsc/lpc47b272/lpc47b272_early_serial.c"
+#include "northbridge/intel/i82810/raminit.h"
+#include "cpu/x86/mtrr/earlymtrr.c"
+#include "cpu/x86/bist.h"
+
+#define SERIAL_DEV PNP_DEV(0x2e, LPC47B272_SP1)
+
+#include "southbridge/intel/i82801xx/i82801xx_early_smbus.c"
+
+void udelay(int usecs) 
+{
+	int i;
+	for(i = 0; i < usecs; i++)
+		outb(i&0xff, 0x80);
+}
+
+#include "debug.c"
+#include "lib/delay.c"
+
+#include "northbridge/intel/i82810/raminit.c"
+#include "northbridge/intel/i82810/debug.c"
+#include "sdram/generic_sdram.c"
+
+static void main(unsigned long bist)
+{
+	static const struct mem_controller memctrl[] = {
+		{
+		 .d0 = PCI_DEV(0, 0, 0),
+		 .channel0 = {
+			      (0xa << 3) | 0,
+			      (0xa << 3) | 1,
+			      },
+		 }
+	};
+	
+	if (bist == 0) {
+		early_mtrr_init();
+	}
+	
+	enable_smbus();
+	
+	lpc47b272_enable_serial(SERIAL_DEV, TTYS0_BASE);
+	uart_init();
+	console_init();
+
+	/* Halt if there was a built in self test failure */
+	report_bist_failure(bist);
+
+	//enable_shadow_ram();
+
+	//dump_spd_registers(&memctrl[0]);
+
+	/* sdram_initialize runs out of registers */
+	//sdram_initialize(sizeof(memctrl) / sizeof(memctrl[0]), memctrl);
+	
+	sdram_set_registers(memctrl);
+	sdram_set_spd_registers(memctrl);
+	sdram_enable(0, memctrl);
+
+	/* Check whether RAM is working.
+	 *
+	 * Do _not_ check the area from 640 KB - 1 MB, as that's not really
+	 * RAM, but rather reserved for various other things:
+	 *
+	 *  - 640 KB - 768 KB: Video Buffer Area
+	 *  - 768 KB - 896 KB: Expansion Area
+	 *  - 896 KB - 960 KB: Extended System BIOS Area
+	 *  - 960 KB - 1 MB:   Memory (BIOS Area) - System BIOS Area
+	 *
+	 * Trying to check these areas will fail.
+	 */
+	/* TODO: This is currently hardcoded to check 64 MB. */
+	//ram_check(0x00000000, 0x0009ffff);	/* 0 - 640 KB */
+	//ram_check(0x00100000, 0x007c0000);	/* 1 MB - 64 MB */
+}
diff --git a/src/mainboard/asus/mew-vm/chip.h b/src/mainboard/asus/mew-vm/chip.h
new file mode 100644
index 0000000000..bcadf9e6fe
--- /dev/null
+++ b/src/mainboard/asus/mew-vm/chip.h
@@ -0,0 +1,5 @@
+extern struct chip_operations mainboard_asus_mew_vm_ops;
+
+struct mainboard_asus_mew_vm_config {
+	int nothing;
+};
diff --git a/src/mainboard/asus/mew-vm/cmos.layout b/src/mainboard/asus/mew-vm/cmos.layout
new file mode 100644
index 0000000000..5ba4c032c1
--- /dev/null
+++ b/src/mainboard/asus/mew-vm/cmos.layout
@@ -0,0 +1,74 @@
+entries
+
+#start-bit length  config config-ID    name
+#0            8       r       0        seconds
+#8            8       r       0        alarm_seconds
+#16           8       r       0        minutes
+#24           8       r       0        alarm_minutes
+#32           8       r       0        hours
+#40           8       r       0        alarm_hours
+#48           8       r       0        day_of_week
+#56           8       r       0        day_of_month
+#64           8       r       0        month
+#72           8       r       0        year
+#80           4       r       0        rate_select
+#84           3       r       0        REF_Clock
+#87           1       r       0        UIP
+#88           1       r       0        auto_switch_DST
+#89           1       r       0        24_hour_mode
+#90           1       r       0        binary_values_enable
+#91           1       r       0        square-wave_out_enable
+#92           1       r       0        update_finished_enable
+#93           1       r       0        alarm_interrupt_enable
+#94           1       r       0        periodic_interrupt_enable
+#95           1       r       0        disable_clock_updates
+#96         288       r       0        temporary_filler
+0          384       r       0        reserved_memory
+384          1       e       4        boot_option
+385          1       e       4        last_boot
+386          1       e       1        ECC_memory
+388          4       r       0        reboot_bits
+392          3       e       5        baud_rate
+400          1       e       1        power_on_after_fail
+412          4       e       6        debug_level
+416          4       e       7        boot_first
+420          4       e       7        boot_second
+424          4       e       7        boot_third
+428          4       h       0        boot_index
+432	     8       h       0        boot_countdown
+1008         16      h       0        check_sum
+
+enumerations
+
+#ID value   text
+1     0     Disable
+1     1     Enable
+2     0     Enable
+2     1     Disable
+4     0     Fallback
+4     1     Normal
+5     0     115200
+5     1     57600
+5     2     38400
+5     3     19200
+5     4     9600
+5     5     4800
+5     6     2400
+5     7     1200
+6     6     Notice
+6     7     Info
+6     8     Debug
+6     9     Spew
+7     0     Network
+7     1     HDD
+7     2     Floppy
+7     8     Fallback_Network
+7     9     Fallback_HDD
+7     10    Fallback_Floppy
+#7     3     ROM
+
+checksums
+
+checksum 392 1007 1008
+
+
diff --git a/src/mainboard/asus/mew-vm/debug.c b/src/mainboard/asus/mew-vm/debug.c
new file mode 100644
index 0000000000..7eeabdef47
--- /dev/null
+++ b/src/mainboard/asus/mew-vm/debug.c
@@ -0,0 +1,66 @@
+
+static void print_debug_pci_dev(unsigned dev)
+{
+	print_debug("PCI: ");
+	print_debug_hex8((dev >> 16) & 0xff);
+	print_debug_char(':');
+	print_debug_hex8((dev >> 11) & 0x1f);
+	print_debug_char('.');
+	print_debug_hex8((dev >> 8) & 7);
+}
+
+static void print_pci_devices(void)
+{
+	device_t dev;
+	for(dev = PCI_DEV(0, 0, 0); 
+		dev <= PCI_DEV(0, 0x1f, 0x7); 
+		dev += PCI_DEV(0,0,1)) {
+		uint32_t id;
+		id = pci_read_config32(dev, PCI_VENDOR_ID);
+		if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
+			(((id >> 16) & 0xffff) == 0xffff) ||
+			(((id >> 16) & 0xffff) == 0x0000)) {
+			continue;
+		}
+		print_debug_pci_dev(dev);
+		print_debug("\r\n");
+	}
+}
+
+static void dump_pci_device(unsigned dev)
+{
+	int i;
+	print_debug_pci_dev(dev);
+	print_debug("\r\n");
+	
+	for(i = 0; i <= 255; i++) {
+		unsigned char val;
+		if ((i & 0x0f) == 0) {
+			print_debug_hex8(i);
+			print_debug_char(':');
+		}
+		val = pci_read_config8(dev, i);
+		print_debug_char(' ');
+		print_debug_hex8(val);
+		if ((i & 0x0f) == 0x0f) {
+			print_debug("\r\n");
+		}
+	}
+}
+
+static void dump_pci_devices(void)
+{
+	device_t dev;
+	for(dev = PCI_DEV(0, 0, 0); 
+		dev <= PCI_DEV(0, 0x1f, 0x7); 
+		dev += PCI_DEV(0,0,1)) {
+		uint32_t id;
+		id = pci_read_config32(dev, PCI_VENDOR_ID);
+		if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
+			(((id >> 16) & 0xffff) == 0xffff) ||
+			(((id >> 16) & 0xffff) == 0x0000)) {
+			continue;
+		}
+		dump_pci_device(dev);
+	}
+}
diff --git a/src/mainboard/asus/mew-vm/failover.c b/src/mainboard/asus/mew-vm/failover.c
new file mode 100644
index 0000000000..bdcb9eaed2
--- /dev/null
+++ b/src/mainboard/asus/mew-vm/failover.c
@@ -0,0 +1,32 @@
+#define ASSEMBLY 1
+#include <stdint.h>
+#include <device/pci_def.h>
+#include <device/pci_ids.h>
+#include <arch/io.h>
+#include "arch/romcc_io.h"
+#include "pc80/mc146818rtc_early.c"
+
+static unsigned long main(unsigned long bist)
+{
+	/* This is the primary cpu how should I boot? */
+	if (do_normal_boot()) {
+		goto normal_image;
+	}
+	else {
+		goto fallback_image;
+	}
+ normal_image:
+	asm volatile ("jmp __normal_image" 
+		: /* outputs */ 
+		: "a" (bist) /* inputs */
+		: /* clobbers */
+		);
+ cpu_reset:
+	asm volatile ("jmp __cpu_reset"
+		: /* outputs */ 
+		: "a"(bist) /* inputs */
+		: /* clobbers */
+		);
+ fallback_image:
+	return bist;
+}
diff --git a/src/mainboard/asus/mew-vm/irq_tables.c b/src/mainboard/asus/mew-vm/irq_tables.c
new file mode 100644
index 0000000000..5794344137
--- /dev/null
+++ b/src/mainboard/asus/mew-vm/irq_tables.c
@@ -0,0 +1,42 @@
+/* This file was generated by getpir.c, do not modify! 
+ * (but if you do, please run checkpir on it to verify)
+ * Contains the IRQ Routing Table dumped directly from your memory, which BIOS sets up
+ *
+ * Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM
+*/
+
+#include <arch/pirq_routing.h>
+
+const struct irq_routing_table intel_irq_routing_table = {
+	PIRQ_SIGNATURE,  /* u32 signature */
+	PIRQ_VERSION,    /* u16 version   */
+	32+16*11,	 /* there can be total 11 devices on the bus */
+	0x00,		 /* Where the interrupt router lies (bus) */
+	(0x11<<3)|0x0,   /* Where the interrupt router lies (dev) */
+	0xe20,		 /* IRQs devoted exclusively to PCI usage */
+	0x8086,		 /* Vendor */
+	0x7120,		 /* Device */
+	0,		 /* Crap (miniport) */
+	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
+	0x89,		 /*  u8 checksum , this has to set to some value 
+that would give 0 after the sum of all bytes for this structure (including checksum) */
+	{
+		/* bus,     dev|fn,   {link, bitmap}, {link, bitmap}, {link, bitmap}, {link, bitmap},  slot, rfu */
+		{0x00,(0x08<<3)|0x0, {{0x02, 0xdea0}, {0x03, 0xdea0}, {0x04, 0xdea0}, {0x01, 0x0dea0}}, 0x1, 0x0},
+		{0x00,(0x09<<3)|0x0, {{0x03, 0xdea0}, {0x04, 0xdea0}, {0x01, 0xdea0}, {0x02, 0x0dea0}}, 0x2, 0x0},
+		{0x00,(0x0a<<3)|0x0, {{0x04, 0xdea0}, {0x01, 0xdea0}, {0x02, 0xdea0}, {0x03, 0x0dea0}}, 0x3, 0x0},
+		{0x00,(0x0b<<3)|0x0, {{0x04, 0xdea0}, {0x01, 0xdea0}, {0x02, 0xdea0}, {0x03, 0x0dea0}}, 0x4, 0x0},
+		{0x00,(0x0c<<3)|0x0, {{0x01, 0xdea0}, {0x02, 0xdea0}, {0x03, 0xdea0}, {0x04, 0x0dea0}}, 0x5, 0x0},
+		{0x00,(0x0d<<3)|0x0, {{0x01, 0xdea0}, {0x02, 0xdea0}, {0x03, 0xdea0}, {0x04, 0x0dea0}}, 0x6, 0x0},
+		{0x00,(0x11<<3)|0x0, {{0x00, 0xdea0}, {0x00, 0xdea0}, {0x03, 0xdea0}, {0x04, 0x0dea0}}, 0x0, 0x0},
+		{0x00,(0x0f<<3)|0x0, {{0x01, 0xdea0}, {0x02, 0xdea0}, {0x03, 0xdea0}, {0x04, 0x0dea0}}, 0x0, 0x0},
+		{0x00,(0x01<<3)|0x0, {{0x01, 0xdea0}, {0x02, 0xdea0}, {0x03, 0xdea0}, {0x04, 0x0dea0}}, 0x0, 0x0},
+		{0x00,(0x10<<3)|0x0, {{0x01, 0xdea0}, {0x02, 0xdea0}, {0x03, 0xdea0}, {0x04, 0x0dea0}}, 0x0, 0x0},
+		{0x00,(0x12<<3)|0x0, {{0x01, 0xdea0}, {0x00, 0xdea0}, {0x00, 0xdea0}, {0x00, 0x0dea0}}, 0x0, 0x0},
+	}
+};
+
+unsigned long write_pirq_routing_table(unsigned long addr)
+{
+        return copy_pirq_routing_table(addr);
+}
diff --git a/src/mainboard/asus/mew-vm/mainboard.c b/src/mainboard/asus/mew-vm/mainboard.c
new file mode 100644
index 0000000000..62d18c2cfe
--- /dev/null
+++ b/src/mainboard/asus/mew-vm/mainboard.c
@@ -0,0 +1,7 @@
+#include <device/device.h>
+#include "chip.h"
+
+struct chip_operations mainboard_asus_mew_vm_ops = {
+	CHIP_NAME("ASUS MEW-VM Mainboard")
+};
+