81 lines
2.5 KiB
Markdown
81 lines
2.5 KiB
Markdown
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# Padmelon board
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## Specs (with Merlin Falcon SOC)
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* Two 260-pin DDR4 SO-DIMM slots, 1.2V DDR4-1333/1600/1866/2133 SO-DIMMs
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Supports 4GB, 8GB and 16GB DDR4 unbuffered ECC (Merlin Falcon)SO-DIMMs
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* Can use Prairie Falcon, Brown Falcon, Merlin Falcon, though coreboot
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code is specific for Merlin Falcon SOC. Some specs will change if not
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using Merlin Falcon.
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* One half mini PCI-Express slot on back side of mainboard
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* One PCI Express® 3.0 x8 slot
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* Two SATA3 ports with 6Gb/s data transfer rate
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* Two USB 2.0 ports at rear panel
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* Two USB 3.0 ports at rear panel
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* Dual Gigabit Ethernet from Realtek RTL8111F Gigabit controller
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* 6-channel High-Definition audio from Realtek ALC662 codec
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* One soldered down SPI flash with dediprog header
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## Mainboard
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![mainboard][padmelon]
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Three items are marked in this picture
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1. dediprog header
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2. memory dimms, address 0xA0 and 0xA4
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3. SATA cables connected to motherboard
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## Back panel
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![back panel][padmelon_io]
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* The lower serial port is UART A (debug serial)
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## Flashing coreboot
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```eval_rst
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+---------------------+--------------------+
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| Type | Value |
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+=====================+====================+
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| Socketed flash | no |
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+---------------------+--------------------+
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| Model | Macronix MX256435E |
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+---------------------+--------------------+
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| Size | 8 MiB |
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+---------------------+--------------------+
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| Flash programing | dediprog header |
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+---------------------+--------------------+
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| Package | SOIC-8 |
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+---------------------+--------------------+
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| Write protection | No |
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+---------------------+--------------------+
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```
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## Technology
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```eval_rst
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+---------------+------------------------------+
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| Fan control | Using fintek F81803A |
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+---------------+------------------------------+
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| CPU | Merlin Falcon (see reference)|
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+---------------+------------------------------+
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```
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## Description of pictures within this document
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```eval_rst
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+----------------------------+----------------------------------------+
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|padmelon.jpg | Motherboard with components identified |
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+----------------------------+----------------------------------------+
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|padmelon_io.jpg | Back panel picture |
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+----------------------------+----------------------------------------+
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```
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## Reference
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[Merlin Falcon BKDG][merlinfalcon]
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[merlinfalcon]: ../../../soc/amd/family15h.md
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[padmelon]: padmelon.jpg
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[padmelon_io]: padmelon_io.jpg
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