107 lines
3.5 KiB
Markdown
107 lines
3.5 KiB
Markdown
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# Kontron mAL10 Computer-on-Modules platform
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The Kontron [mAL10] COMe is a credit card sized Computer-on-Modules
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platform based on the Intel Atom E3900 Series, Pentium and Celeron
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processors.
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## Technology
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```eval_rst
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+------------------+----------------------------------+
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| COMe Type | mini pin-out type 10 |
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+------------------+----------------------------------+
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| SoC | Intel Atom x5-E3940 (4 core) |
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+------------------+----------------------------------+
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| GPU | Intel HD Graphics 500 |
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+------------------+----------------------------------+
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| Coprocessor | Intel TXE 3.0 |
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+------------------+----------------------------------+
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| RAM | 8GB DDR3L |
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+------------------+----------------------------------+
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| eMMC Flash | 32GB eMMC pSLC |
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+------------------+----------------------------------+
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| USB3 | x2 |
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+------------------+----------------------------------+
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| USB2 | x6 |
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+------------------+----------------------------------+
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| SATA | x2 |
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+------------------+----------------------------------+
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| LAN | Intel I210IT, I211AT |
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+------------------+----------------------------------+
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| Super IO/EC | Kontron CPLD/EC |
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+------------------+----------------------------------+
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| HWM | NCT7802 |
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+------------------+----------------------------------+
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```
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## Building coreboot
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The following commands will build a working image:
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```bash
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make distclean
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make defconfig KBUILD_DEFCONFIG=configs/config.kontron_mal10
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make
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```
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## Payloads
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- SeaBIOS
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- Tianocore
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- Linux as payload
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## Flashing coreboot
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The SPI flash can be accessed internally using [flashrom].
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The following command is used to flash BIOS region.
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```bash
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$ flashrom -p internal --ifd -i bios -w coreboot.rom --noverify-all
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```
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## Hardware Monitor
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The Nuvoton [NCT7802Y] is a hardware monitoring IC, capable of monitor critical
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system parameters including power supply voltages, fan speeds, and temperatures.
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The remote inputs can be connected to CPU/GPU thermal diode or any thermal diode
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sensors and thermistor.
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- 6 temperature sensors;
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- 5 voltage sensors;
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- 3 fan speed sensors;
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- 4 sets of temperature setting points.
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PECI is not supported by Apollo Lake Pentium/Celeron/Atom processors and the CPU
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temperature value is taken from a thermal resistor (NTC) that is placed very
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close to the CPU.
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## Known issues
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- Works only with Tianocore "UEFIPayload" payload edk2-stable201903-1569-g3e63a91
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Booting with the "CorebootPayload" [crashes].
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- Tianocore outputs video through an external GPU only.
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## Untested
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- IGD/LVDS
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- SDIO
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## Tested and working
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- Kontron CPLD/EC (Serial ports, I2C port)
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- NCT7802 [HWM](#Hardware Monitor)
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- USB2/3
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- Gigabit Ethernet ports
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- eMMC
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- SATA
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- PCIe ports
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- IGD/DP
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## TODO
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- Onboard audio (codec IDT 92HD73C1X5, currently disabled)
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- S3 suspend/resume
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[mAL10]: https://www.kontron.com/products/iot/iot-industry-4.0/iot-ready-boards-and-modules/com-express/com-express-mini/come-mal10-e2-.html
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[W25Q128FV]: https://www.winbond.com/resource-files/w25q128fv%20rev.m%2005132016%20kms.pdf
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[flashrom]: https://flashrom.org/Flashrom
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[NCT7802Y]: https://www.nuvoton.com/products/cloud-computing/hardware-monitors/desktop-server-series/nct7802y/?__locale=en
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[crashes]: https://pastebin.com/cpCfrPCL
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