2019-04-07 00:18:42 +02:00
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# MSI MS-7707 V1.1
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* MSI MS-7707 V1.1 (Medion OEM Akoya P4385D MSN10014555)
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* SandyBridge Intel P67 (BD82x6x)
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* Winbond 25Q32BV (4MB)
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* Fintek F71808A SuperIO
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* Intel 82579V Gigabit
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* NEC uPD720200 USB 3.0 Host Controller
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* IME 7.0.4.1197
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## Flash chip (Winbond 25Q32BV)
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```eval_rst
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+---------------------+--------------------+
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| Type | Value |
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+=====================+====================+
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| Size | 4 MiB |
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+---------------------+--------------------+
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| BIOS range | 2 MiB |
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+---------------------+--------------------+
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| Write protection | Yes (via jumper) |
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+---------------------+--------------------+
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| Header | Yes (JSPI1) |
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+---------------------+--------------------+
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| Package | SOIC-8 |
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+---------------------+--------------------+
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| In circuit flashing | Yes |
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+---------------------+--------------------+
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| Internal flashing | Yes |
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+---------------------+--------------------+
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| Socketed flash | No |
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+---------------------+--------------------+
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| Dual BIOS feature | No |
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+---------------------+--------------------+
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| ME removable | Yes |
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+---------------------+--------------------+
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```
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## Installation instructions
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* The standard method is to only flash the 2MiB BIOS region. In that case it's
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not needed to extract blobs from vendor firmware and internal flashing is
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sufficient.
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* To flash the whole chip (e.g. to disable ME) blobs are needed to build
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coreboot. Blobs can be extracted with util/ifdtool from 4MiB full dump image
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(see below). Its recommended to include the VGA BIOS as well (4MiB write only).
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Kconfig is prepared already if it gets enabled (path and 8086,0102).
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```
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coreboot/3rdparty/blobs/mainboard/msi/ms7707
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├── descriptor.bin
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├── gbe.bin
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├── me.bin
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└── vgabios.bin
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```
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* Never write a full 4MiB image if blobs are not included. The generated
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coreboot.rom file is always 4MiB but the 2MiB flash command below will only
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flash the last 2MiB (BIOS) block.
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* The J1-Jumper sets the 'Flash Descriptor Override Strap-Pin' and enables
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full 4MiB access for internal flasher (read and write).
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* **Write BIOS-range** (2MiB) with J1-Jumper=off (as on picture/default
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position):
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```
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flashrom -p internal:ich_spi_force=yes --noverify-all --ifd -i bios -w coreboot.rom
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```
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* **Read full dump** (4MiB) with J1-jumper=on:
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```
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flashrom -p internal -r original.rom
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```
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* **Write full dump** (4MiB) with J1-Jumper=on:
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```
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flashrom -p internal -w coreboot.rom
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```
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* After successful flashing turn main power off, wait some seconds to drain
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the capacitors, pull the battery and set the JBAT (clrcmos) jumper for some
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seconds. Setting the jumper alone is not enough (the Fintek is VBAT backed).
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Put all back in place and restart the board. It might need 1-2 AC power cycles
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to reinitialize (running at full fan speed - don't panic).
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* External flashing has been tested with RPi2 without main power connected.
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3.3V provided by RPi2. Read more about flashing methods [here](https://doc.coreboot.org/flash_tutorial/index.html).
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2020-02-16 10:01:33 +01:00
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* In case of going back to proprietary BIOS create/save CMOS settings as early
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2019-04-07 00:18:42 +02:00
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as possible (do not leave BIOS on first start without saving settings).
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The BIOS might corrupt nvram (not cmos!) and leave the system in a dead state
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that needs an external flasher to revive. If stuck, reset the Fintek (see
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above) and restart the system several times and/or try setting J1 to
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temporarily disable ME.
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* The JSPI1 header (5×2 2.0mm pitch pin header) for external flashing is
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directly connected to the flash chip. Additional 3.3V to /HOLD and /WP is not
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needed (internally re-routed already).
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## Flash layout
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* The 4MiB flashrom is divided into 4 sections:
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![][flashlayout]
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## Links
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- [BIOS ROM]
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- [Fintek F71808A datasheet]
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- [Winbond 25Q32BV datasheet]
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[BIOS ROM]: https://www.medion.com/de/servicebackend/_lightbox/treiber_details.php?did=9744
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[Winbond 25Q32BV datasheet]: https://www.winbond.com/resource-files/w25q32bv_revi_100413_wo_automotive.pdf
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[Fintek F71808A datasheet]: https://www.alldatasheet.com/datasheet-pdf/pdf/459069/FINTEK/F71808A.html
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[flashlayout]: flashlayout.svg
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