Difference between revisions of "Board:asus/m4a785t-m"

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 +
This HOWTO explains how to use coreboot on the M4A785T-M board. The main difference between the '''[https://www.asus.com/Motherboards/M4A785M/ ASUS M4A785-M]''' and the '''[https://www.asus.com/Motherboards/M4A785M/ M4A785T-M]''' is the support of DDR3 on the latter.
 +
 
== Status ==
 
== Status ==
 +
=== RAM issue ===
 +
* 32bit untested.
 +
* 64bit was tested and works with 2G of RAM.
 +
** When using more than 4G of RAM, I can't boot GNU/Linux anymore:
 +
***USB devices not seen, some errors -71), with mem=4000M, that works ok again.
 +
***SATA devices are also not seen, and with mem=4000M, it also works ok again.
 +
 +
=== Status ===
 
{{Status|
 
{{Status|
  
 
|CPU_status = OK
 
|CPU_status = OK
|CPU_comments = Tested: AMD Athlon64 X2 250.
+
|CPU_comments = Tested: AMD Athlon64 X2 240e.
|CPU_L1_status = Untested
+
|CPU_L1_status = Unknown
|CPU_L1_comments = Not tested yet
+
|CPU_L1_comments = How to test?
|CPU_L2_status = Untested
+
|CPU_L2_status = Unknown
|CPU_L2_comments = Not tested yet
+
|CPU_L2_comments = How to test?
 
|CPU_L3_status = N/A
 
|CPU_L3_status = N/A
 
|CPU_multiple_status = N/A
 
|CPU_multiple_status = N/A
|CPU_multicore_status = OK
+
|CPU_multicore_status = Unknown
|CPU_virt_status = Untested
+
|CPU_virt_status = Unknown
|CPU_virt_comments = Not tested yet
+
 
+
 
|RAM_EDO_status = N/A
 
|RAM_EDO_status = N/A
 
|RAM_SDRAM_status = N/A
 
|RAM_SDRAM_status = N/A
 
|RAM_SODIMM_status = N/A
 
|RAM_SODIMM_status = N/A
 
|RAM_DDR_status = N/A
 
|RAM_DDR_status = N/A
|RAM_DDR_comments = N/A
+
|RAM_DDR2_status = Unknown
|RAM_DDR2_status = Untested
+
|RAM_DDR3_status = No
|RAM_DDR3_status = WIP
+
|RAM_DDR3_comments = 2G works, 4G or more have issues.
|RAM_DDR3_comments = 2G works but not 4G(graphics issues,64bit booting issues(hang during initramfs)).
+
 
|RAM_dualchannel_status = Untested
 
|RAM_dualchannel_status = Untested
 
|RAM_ecc_status = Untested
 
|RAM_ecc_status = Untested
|RAM_ecc_comments =  
+
|RAM_ecc_comments = I'm not sure if hardware supports it.
 
+
|IDE_status = Untested
|IDE_status = OK
+
|IDE_comments = Tested: 500GB HDD
+
 
|IDE_25_status = N/A
 
|IDE_25_status = N/A
|IDE_CF_status = untested
+
|IDE_CF_status = N/A
|IDE_CF_comments =
+
|CDROM_DVD_status = Untested
|CDROM_DVD_status = -
+
|SATA_status = Untested
|CDROM_DVD_comments =
+
|SATA_comments = At least 2 of the 6 SATA port works. The rest is untested.
|SATA_status = OK
+
|SATA_comments = Tested on port 1, untested for the rest
+
 
|USB_status = OK
 
|USB_status = OK
|USB_comments = USB keyboard works
+
|USB_comments = tested in SeaBIOS and with the linux-libre kernel.
|Onboard_VGA_status = OK
+
|Onboard_VGA_status = Untested
|Onboard_VGA_comments = Tested:analog VGA and HDMI,dual screen.
+
|Onboard_VGA_comments = I only tested the external GPU, see below for more informations.
 
|Onboard_ethernet_status = OK
 
|Onboard_ethernet_status = OK
|Onboard_audio_status = No
+
|Onboard_ethernet_comments = Tested in linux-libre and ipxe, works flawlessly.
|Onboard_audio_comments = Linux driver crashes.
+
|Onboard_audio_status = Untested
 +
|Onboard_audio_comments = Not tested but it boots fine with it and the sound card appears.
 
|Onboard_modem_status = N/A
 
|Onboard_modem_status = N/A
 
|Onboard_firewire_status = N/A
 
|Onboard_firewire_status = N/A
Line 47: Line 51:
 
|Onboard_CF_status = N/A
 
|Onboard_CF_status = N/A
 
|Onboard_PCMCIA_status = N/A
 
|Onboard_PCMCIA_status = N/A
 
 
|ISA_cards_status = N/A
 
|ISA_cards_status = N/A
 
|AMR_cards_status = N/A
 
|AMR_cards_status = N/A
 
|PCI_cards_status = OK
 
|PCI_cards_status = OK
|PCI_cards_comments = I've an ath9k wifi PCI card and it works.
+
|PCI_cards_comments = Tested booting on an ATA sil card: booting on it works when adding its PCI ID to coreboot.
 
|Mini_PCI_cards_status = N/A
 
|Mini_PCI_cards_status = N/A
 
|PCIX_cards_status = N/A
 
|PCIX_cards_status = N/A
 
|AGP_cards_status = N/A
 
|AGP_cards_status = N/A
 
|PCIE_x1_status = Untested
 
|PCIE_x1_status = Untested
|PCIE_x1_comments =
+
|PCIE_x2_status = Untested
|PCIE_x2_status = N/A
+
 
|PCIE_x4_status = Untested
 
|PCIE_x4_status = Untested
|PCIE_x8_status = N/A
+
|PCIE_x8_status = Untested
|PCIE_x16_status = Untested
+
|PCIE_x16_status = OK
|PCIE_x16_comments =  
+
|PCIE_x16_comments = Works with "02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GT218 [GeForce 210] [10de:0a65] (rev a2)"
 
|PCIE_x32_status = N/A
 
|PCIE_x32_status = N/A
 
|HTX_status = N/A
 
|HTX_status = N/A
 
 
|Floppy_status = N/A
 
|Floppy_status = N/A
|Floppy_comments = There is no floppy connector at all.
+
|Floppy_comments = There is no floppy connector. There seem to be an unpopulated header for it.
 
|COM1_status = OK
 
|COM1_status = OK
|COM1_comments = COM1 is only pin header on board. DB-9 serial connector is available, but not included with board.
+
|COM1_comments = [[Serial_console#Non-standard_.22intel_configuration.22_10_pins_header|10 pins intel header]]
 
|COM2_status = N/A
 
|COM2_status = N/A
 
|PP_status = Untested
 
|PP_status = Untested
|PP_comments = No connector, pins on board only
+
|PP_comments = Headers on board only.
|PS2_keyboard_status = OK
+
|PS2_keyboard_status = Untested
|PS2_keyboard_comments =
+
 
|PS2_mouse_status = Untested
 
|PS2_mouse_status = Untested
|PS2_mouse_comments =
 
 
|Game_port_status = N/A
 
|Game_port_status = N/A
|IR_status = N/A
+
|IR_status = Untested
 +
|IR_status_comments = I'm not sure if that mainboard has a connector for it.
 
|Speaker_status = Untested
 
|Speaker_status = Untested
 
|DiskOnChip_status = N/A
 
|DiskOnChip_status = N/A
 
 
|Sensors_status = Untested
 
|Sensors_status = Untested
|Sensors_comments =
+
|Watchdog_status = Untested
|Watchdog_status = N/A
+
 
|CAN_bus_status = N/A
 
|CAN_bus_status = N/A
 
|CPUfreq_status = Untested
 
|CPUfreq_status = Untested
|CPUfreq_comments =
 
 
|Powersave_status = Untested
 
|Powersave_status = Untested
 
|ACPI_status = Untested
 
|ACPI_status = Untested
 
|Reboot_status = OK
 
|Reboot_status = OK
 
|Poweroff_status = OK
 
|Poweroff_status = OK
|LEDs_status =  
+
|LEDs_status = Untested
|LEDs_comments =
+
|HPET_status = Untested
|HPET_status =  
+
|HPET_comments =
+
 
|RNG_status = Untested
 
|RNG_status = Untested
 
|WakeOnModem_status = Untested
 
|WakeOnModem_status = Untested
|WakeOnLAN_status =  
+
|WakeOnLAN_status = Untested
 
|WakeOnKeyboard_status = Untested
 
|WakeOnKeyboard_status = Untested
 
|WakeOnMouse_status = Untested
 
|WakeOnMouse_status = Untested
 
|Flashrom_status = OK
 
|Flashrom_status = OK
|Flashrom_comments = The chip is SPI
+
|Flashrom_comments = Works fine from coreboot to coreboot, and from BIOS to coreboot. From coreboot to BIOS works but you may have to do some tricks like clearing CMOS to make it start again.
 
+
 
}}
 
}}
  
== Introduction ==
+
== proprietary components status ==
This pages is about the port to the M4A785T-M, this mainboard is very similar to the M4A785-M, but:
+
* Optional CPU Microcode
* it has DDR3 instead of DDR2
+
* Optional VGA option rom: wihtout it you will get no graphics, Note that if you use an external graphic card, SeaBIOS load the option rom with its default configuration from the graphic card.
 
+
** You can also patch SeaBIOS to put the option rom in memory without running it. That way the linux driver will then find the option rom bytecodes and tables to initialize that GPU.
The port is in the very early stages...(it will be ok when screen will not flickers at resolutions > 800x600)
+
From 83bbd30b3ef76fc346c417fa08ba716b4e2fb179 Mon Sep 17 00:00:00 2001
 +
From: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
 +
Date: Sat, 7 Mar 2015 15:39:52 +0100
 +
Subject: [PATCH] Kconfig: Add option not to run option roms
 +
 +
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
 +
---
 +
  src/Kconfig      | 8 ++++++++
 +
  src/optionroms.c | 2 ++
 +
  2 files changed, 10 insertions(+)
 +
 +
diff --git a/src/Kconfig b/src/Kconfig
 +
index b873cd3..2438ab7 100644
 +
--- a/src/Kconfig
 +
+++ b/src/Kconfig
 +
@@ -403,6 +403,14 @@ menu "BIOS interfaces"
 +
          default y
 +
          help
 +
              Support Post Memory Manager (PMM) entry point.
 +
+    config OPTIONROMS_NORUN
 +
+        depends on OPTIONROMS
 +
+        bool "Put the option roms in memory, but don't run them"
 +
+        default n
 +
+        help
 +
+            Some GPU drivers are capable of initializing the display alone,
 +
+            but they still require some data from the option rom.
 +
+
 +
      config BOOT
 +
          bool "Boot interface"
 +
          default y
 +
diff --git a/src/optionroms.c b/src/optionroms.c
 +
index c81eff2..c7c89da 100644
 +
--- a/src/optionroms.c
 +
+++ b/src/optionroms.c
 +
@@ -53,7 +53,9 @@ __callrom(struct rom_header *rom, u16 offset, u16 bdf)
 +
  void
 +
  callrom(struct rom_header *rom, u16 bdf)
 +
  {
 +
+#if (!CONFIG_OPTIONROMS_NORUN)
 +
      __callrom(rom, OPTION_ROM_INITVECTOR, bdf);
 +
+#endif
 +
  }
 +
 
 +
  // Execute a BCV option rom registered via add_bcv().
 +
--
 +
2.6.2
  
 
== Building the serial port adapter ==
 
== Building the serial port adapter ==
You'll need to build a serial port adapter to get the coreboot logs during.
+
The serial port is available on the [[Serial_console#Non-standard_.22intel_configuration.22_10_pins_header|10 pin "intel" header]].
Here's a picture of the serial port connector on the mainboard:<br />
+
[[Image:ASUS_M4A785T-M_serial_connector_witout_serial_adapter.jpeg]]<br />
+
And here's the kind of cable you will need:<br />
+
[[Image:ASUS_M4A785T-M_serial_connector_with_serial_adapter.jpeg]]<br />
+
And you'll need to build a cable similar to this one(on the picture the DB9 is connector is a male connector):<br />
+
[[Image:ASUS_M4A785T-M_serial_cable.jpeg]]<br />
+
Here's how it looks like on the mainboard:
+
_____________________
+
|
+
|NC|09|
+
|08|07|
+
|06|05|
+
|04|03|
+
|02|01|
+
|
+
|
+
Here's a table of corresponding pins:
+
 
+
{| class="wikitable"  border="1"
+
!Mainboard connector pin
+
!Mainboard pin Function
+
!Standard DE9 pin connector
+
!Standard DE9 pin Function
+
!Mandatory for coreboot
+
|-
+
|1
+
|?
+
|?
+
|?
+
|No
+
|-
+
|2
+
|RX
+
|3
+
|TX
+
|Yes (you could do without but it's advised to get it, to be able to use certain functions of coreboot)
+
|-
+
|3
+
|TX
+
|2
+
|RX
+
|Yes
+
|-
+
|4
+
|
+
|4
+
|DTR
+
|No
+
|-
+
|5
+
|Ground
+
|5
+
|Ground
+
|Yes
+
|-
+
|6
+
|?
+
|?
+
|?
+
|No
+
|-
+
|7
+
|
+
|7
+
|RTS
+
|No
+
|-
+
|8
+
|
+
|8
+
|CTS
+
|No
+
|-
+
|9
+
|?
+
|?
+
|?
+
|No
+
|-
+
|}
+
  
 
== Adapting GNU/Linux ==
 
== Adapting GNU/Linux ==
Before booting with coreboot, do the following:
+
Add mem=4000M to the kennel cmdline, that can be done by adding the following to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub and regenerating grub.cfg:
* blacklist the snd-hda* modules (refer to the usual way to get help for the GNU/Linux distribution you want to run for doing that)
+
mem=4096M
  
== Building Coreboot ==
+
== TODO ==
To build coreboot for this mainboard:
+
* <s>Add defaults for the nvram settings.</s>
* checkout coreboot revision 1b1309f289d6fc9f6ec348686665d25218535030
+
* <s>find a clean way to merge the patch for the PCIe graphic card.</s>
* Configure and Build it as usual(for having graphics you need to extract your VGA BIOS ROM from your BIOS)
+
* <s>fix the Audio CODEC(it's the same than the x60 and it works on the x60)</s>Test audio
 +
* Fix RAM layout to prevent issues with more than 4G of RAM
 +
* lock SMM/SMI if it's not already
 +
* make it possible to run the BIOS under serialICE
 +
* Native GPU init for ATI and Nvidia GPUs
  
 
== SerialICE ==
 
== SerialICE ==
* Selecting the ASUS M4A77TD-PRO mainboard makes the serialICE shell appear once flashed.
+
* Selecting the ASUS M4A77TD-PRO mainboard makes the serialICE shell appear once flashed(however running the BIOS under SerialICE fails at some point).
 +
=== Howto ===
 +
<div class="boilerplate" style="background-color: red; margin: 2em 0 0 0; padding: 0 10px 0 10px; border: 1px dotted #aaa;">'''WARNING, This Howto is for SerialICE and not for coreboot, don't flash the resulting image unless you really know what you're doing...'''</div>
 +
git clone http://review.coreboot.org/p/serialice.git
 +
cd serialice
 +
make menuconfig
 +
make
 +
 
 +
cd ../
 +
cd qemu-0.15.x
 +
sh build.sh
 +
ln -s ../SerialICE/simba/*.lua ./
 +
 
 +
Add the following to asus_m4a77td_pro.lua:
 +
microcode_patchlevel_eax = 0x010000b7
 +
 +
function do_mainboard_setup()
 +
do_minimal_setup()
 +
do_default_setup()
 +
enable_hook(cpumsr_hooks, filter_amd_microcode)
 +
end
 +
 
 +
=== Failing ===
 +
It fails like that(it inits the 2 cores and we have 1 core(qemu)):
 +
[fffc06a:0c0f] e25f.e260  LAPIC: [00000380] <= 00000000
 +
[fffc06a:1321] e26b.e26d  PCI: 0:18.0 [60] => 00010000
 +
[fffc06a:12e3] e273.e275  PCI: 0:18.3 [e8] => 00075f79
 +
[fffc06a:1397] e27e.e27f  CPUID: eax: 00000001; ecx: 0000001b => 00100f62.00020800.00802009.178bfbff
 +
[fffc06a:1321] e290.e292  PCI: 0:18.3 [e8] => 00075f79
 +
[fffc06a:1397] e297.e298  CPUID: eax: 00000001; ecx: 0000001b => 00100f62.00020800.00802009.178bfbff
 +
[fffc06a:121e] e2a5.e2a6  CPUID: eax: 80000001; ecx: 0000001b => 00100f62.10001b26.000037ff.efd3fbff
 +
[fffc06a:12ff] e2bb.e2bc  CPUID: eax: 80000008; ecx: 0000001b => 00003030.00000000.00002001.00000000
 +
[fffc06a:130c] e2bf.e2c0  CPU MSR: [c001001f] => 00584000.00000008
 +
[fffc06a:131d] e2c4.e2c5  CPU MSR: [c001001f] <= 00584000.00000008
 +
[fffc06a:131d] e2cf.e2d1  PCI: 0:18.3 [90] => 00000000
 +
[fffc06a:1348] e2dc.e2dd  CPUID: eax: 80000008; ecx: 0000001b => 00003030.00000000.00002001.00000000
 +
[fffc06a:135d] e2e2.e2e3  CPU MSR: [c001001f] <= 00584000.00000008
 +
[fffc06a:0b7d] e2f2.e2f3  CPU MSR: [0000001b] => 00000000.fee00900
 +
[fffc06a:0b7d] e2f4.e2f5  LAPIC: [00000020] => 00000000
 +
[fffc06a:127a] e2f9.e2fa  CPUID: eax: 00000001; ecx: 0000001b => 00100f62.00020800.00802009.178bfbff
 +
[fffc06a:1289] e2f9.e2fb  CPUID: eax: 80000008; ecx: 00802009 => 00003030.00000000.00002001.00000000
 +
[fffc06a:1057] e302.e304  PCI: 0:18.0 [68] => 004fac0f
 +
[fffc06a:1071] e30d.e30f  PCI: 0:18.0 [68] <= 004fac2f
 +
Readback error! 30/72
 +
Readback error! a/63
 +
Readback error! 72/30
 +
Readback error! 3e/30
 +
Readback error! 20/30
 +
Readback error! 63/30
 +
Readback error! 66/30
 +
Readback error! 45/30
 +
Readback error! a/31
 +
Readback error! 52/62
 +
Readback error! 3e/2e
 +
Readback error! 52/66
 +
Readback error! 20/66
 +
Readback error! 4f/66
 +
Readback error! 30/65
 +
Readback error! 52/62
 +
Readback error! a/30
 +
Readback error! a/30
 +
Readback error! 3e/30
 +
[fffc06a:0c50] e31d.e31e  CPU MSR: [0000001b] => 00000000.00000000

Latest revision as of 21:36, 1 November 2015

This HOWTO explains how to use coreboot on the M4A785T-M board. The main difference between the ASUS M4A785-M and the M4A785T-M is the support of DDR3 on the latter.

Status

RAM issue

  • 32bit untested.
  • 64bit was tested and works with 2G of RAM.
    • When using more than 4G of RAM, I can't boot GNU/Linux anymore:
      • USB devices not seen, some errors -71), with mem=4000M, that works ok again.
      • SATA devices are also not seen, and with mem=4000M, it also works ok again.

Status

Device/functionality Status Comments
CPU
CPU works OK Tested: AMD Athlon64 X2 240e.
L1 cache enabled Unknown How to test?
L2 cache enabled Unknown How to test?
L3 cache enabled N/A
Multiple CPU support N/A
Multi-core support Unknown
Hardware virtualization Unknown
RAM
EDO N/A
SDRAM N/A
SO-DIMM N/A
DDR N/A
DDR2 Unknown
DDR3 No 2G works, 4G or more have issues.
Dual channel support Untested
ECC support Untested I'm not sure if hardware supports it.
On-board Hardware
On-board IDE 3.5" Untested
On-board IDE 2.5" N/A
On-board SATA Untested At least 2 of the 6 SATA port works. The rest is untested.
On-board SCSI Unknown
On-board USB OK tested in SeaBIOS and with the linux-libre kernel.
On-board VGA Untested I only tested the external GPU, see below for more informations.
On-board ethernet OK Tested in linux-libre and ipxe, works flawlessly.
On-board audio Untested Not tested but it boots fine with it and the sound card appears.
On-board modem N/A
On-board FireWire N/A
On-board smartcard reader N/A
On-board CompactFlash N/A
On-board PCMCIA N/A
Add-on slots/cards
ISA add-on cards N/A
Audio/Modem-Riser (AMR/CNR) cards N/A
PCI add-on cards OK Tested booting on an ATA sil card: booting on it works when adding its PCI ID to coreboot.
Mini-PCI add-on cards N/A
PCI-X add-on cards N/A
AGP graphics cards N/A
PCI Express x1 add-on cards Untested
PCI Express x2 add-on cards Untested
PCI Express x4 add-on cards Untested
PCI Express x8 add-on cards Untested
PCI Express x16 add-on cards OK Works with "02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GT218 [GeForce 210] [10de:0a65] (rev a2)"
PCI Express x32 add-on cards N/A
HTX add-on cards N/A
Legacy / Super I/O
Floppy N/A There is no floppy connector. There seem to be an unpopulated header for it.
Serial port 1 (COM1) OK 10 pins intel header
Serial port 2 (COM2) N/A
Parallel port Untested Headers on board only.
PS/2 keyboard Untested
PS/2 mouse Untested
Game port N/A
Infrared Untested
PC speaker Untested
DiskOnChip N/A
Miscellaneous
Sensors / fan control Untested
Hardware watchdog Untested
SMBus Unknown
CAN bus N/A
CPU frequency scaling Untested
Other powersaving features Untested
ACPI Untested
Reboot OK
Poweroff OK
Suspend Unknown
Nonstandard LEDs Untested
High precision event timers (HPET) Untested
Random number generator (RNG) Untested
Wake on modem ring Untested
Wake on LAN Untested
Wake on keyboard Untested
Wake on mouse Untested
Flashrom OK Works fine from coreboot to coreboot, and from BIOS to coreboot. From coreboot to BIOS works but you may have to do some tricks like clearing CMOS to make it start again.

proprietary components status

  • Optional CPU Microcode
  • Optional VGA option rom: wihtout it you will get no graphics, Note that if you use an external graphic card, SeaBIOS load the option rom with its default configuration from the graphic card.
    • You can also patch SeaBIOS to put the option rom in memory without running it. That way the linux driver will then find the option rom bytecodes and tables to initialize that GPU.
From 83bbd30b3ef76fc346c417fa08ba716b4e2fb179 Mon Sep 17 00:00:00 2001
From: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Date: Sat, 7 Mar 2015 15:39:52 +0100
Subject: [PATCH] Kconfig: Add option not to run option roms

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
---
 src/Kconfig      | 8 ++++++++
 src/optionroms.c | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/src/Kconfig b/src/Kconfig
index b873cd3..2438ab7 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -403,6 +403,14 @@ menu "BIOS interfaces"
         default y
         help
             Support Post Memory Manager (PMM) entry point.
+    config OPTIONROMS_NORUN
+        depends on OPTIONROMS
+        bool "Put the option roms in memory, but don't run them"
+        default n
+        help
+            Some GPU drivers are capable of initializing the display alone,
+            but they still require some data from the option rom.
+
     config BOOT
         bool "Boot interface"
         default y
diff --git a/src/optionroms.c b/src/optionroms.c
index c81eff2..c7c89da 100644
--- a/src/optionroms.c
+++ b/src/optionroms.c
@@ -53,7 +53,9 @@ __callrom(struct rom_header *rom, u16 offset, u16 bdf)
 void
 callrom(struct rom_header *rom, u16 bdf)
 {
+#if (!CONFIG_OPTIONROMS_NORUN)
     __callrom(rom, OPTION_ROM_INITVECTOR, bdf);
+#endif
 }
 
 // Execute a BCV option rom registered via add_bcv().
-- 
2.6.2

Building the serial port adapter

The serial port is available on the 10 pin "intel" header.

Adapting GNU/Linux

Add mem=4000M to the kennel cmdline, that can be done by adding the following to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub and regenerating grub.cfg:

mem=4096M

TODO

  • Add defaults for the nvram settings.
  • find a clean way to merge the patch for the PCIe graphic card.
  • fix the Audio CODEC(it's the same than the x60 and it works on the x60)Test audio
  • Fix RAM layout to prevent issues with more than 4G of RAM
  • lock SMM/SMI if it's not already
  • make it possible to run the BIOS under serialICE
  • Native GPU init for ATI and Nvidia GPUs

SerialICE

  • Selecting the ASUS M4A77TD-PRO mainboard makes the serialICE shell appear once flashed(however running the BIOS under SerialICE fails at some point).

Howto

WARNING, This Howto is for SerialICE and not for coreboot, don't flash the resulting image unless you really know what you're doing...
git clone http://review.coreboot.org/p/serialice.git
cd serialice
make menuconfig
make
cd ../
cd qemu-0.15.x
sh build.sh
ln -s ../SerialICE/simba/*.lua ./

Add the following to asus_m4a77td_pro.lua:

microcode_patchlevel_eax = 0x010000b7

function do_mainboard_setup()
	do_minimal_setup()
	do_default_setup()
	enable_hook(cpumsr_hooks, filter_amd_microcode)
end

Failing

It fails like that(it inits the 2 cores and we have 1 core(qemu)):

[fffc06a:0c0f] e25f.e260   LAPIC: [00000380] <= 00000000
[fffc06a:1321] e26b.e26d   PCI: 0:18.0 [60] => 00010000
[fffc06a:12e3] e273.e275   PCI: 0:18.3 [e8] => 00075f79
[fffc06a:1397] e27e.e27f   CPUID: eax: 00000001; ecx: 0000001b => 00100f62.00020800.00802009.178bfbff
[fffc06a:1321] e290.e292   PCI: 0:18.3 [e8] => 00075f79
[fffc06a:1397] e297.e298   CPUID: eax: 00000001; ecx: 0000001b => 00100f62.00020800.00802009.178bfbff
[fffc06a:121e] e2a5.e2a6   CPUID: eax: 80000001; ecx: 0000001b => 00100f62.10001b26.000037ff.efd3fbff
[fffc06a:12ff] e2bb.e2bc   CPUID: eax: 80000008; ecx: 0000001b => 00003030.00000000.00002001.00000000
[fffc06a:130c] e2bf.e2c0   CPU MSR: [c001001f] => 00584000.00000008
[fffc06a:131d] e2c4.e2c5   CPU MSR: [c001001f] <= 00584000.00000008
[fffc06a:131d] e2cf.e2d1   PCI: 0:18.3 [90] => 00000000
[fffc06a:1348] e2dc.e2dd   CPUID: eax: 80000008; ecx: 0000001b => 00003030.00000000.00002001.00000000
[fffc06a:135d] e2e2.e2e3   CPU MSR: [c001001f] <= 00584000.00000008
[fffc06a:0b7d] e2f2.e2f3   CPU MSR: [0000001b] => 00000000.fee00900
[fffc06a:0b7d] e2f4.e2f5   LAPIC: [00000020] => 00000000
[fffc06a:127a] e2f9.e2fa   CPUID: eax: 00000001; ecx: 0000001b => 00100f62.00020800.00802009.178bfbff
[fffc06a:1289] e2f9.e2fb   CPUID: eax: 80000008; ecx: 00802009 => 00003030.00000000.00002001.00000000
[fffc06a:1057] e302.e304   PCI: 0:18.0 [68] => 004fac0f
[fffc06a:1071] e30d.e30f   PCI: 0:18.0 [68] <= 004fac2f
Readback error! 30/72
Readback error! a/63
Readback error! 72/30
Readback error! 3e/30
Readback error! 20/30
Readback error! 63/30
Readback error! 66/30
Readback error! 45/30
Readback error! a/31
Readback error! 52/62
Readback error! 3e/2e
Readback error! 52/66
Readback error! 20/66
Readback error! 4f/66
Readback error! 30/65
Readback error! 52/62
Readback error! a/30
Readback error! a/30
Readback error! 3e/30
[fffc06a:0c50] e31d.e31e   CPU MSR: [0000001b] => 00000000.00000000