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https://github.com/AsahiLinux/u-boot
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36 lines
1.1 KiB
Text
36 lines
1.1 KiB
Text
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# Copyright (C) 2018 EETS GmbH - http://www.eets.ch/
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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Summary
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=======
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This document covers the PDU001 target.
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Hardware
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========
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The PDU-001 (Processor and Display Unit) is a plugin card for 19" racks. It is
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manufactured by EETS GmbH (https://www.eets.ch). The core of the board is a m2
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SOM from bytes at work (https://www.bytesatwork.ch) which in turn is based on
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AM3352 SOC from TI (http://www.ti.com).
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Customization
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=============
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As usual the console serial interface is set by CONFIG_CONS_INDEX. Best choice
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is 4 here since UART3 is wired to the connector K2.
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The Run LED on the PDU-001 can be turned on red by setting CONFIG_RUN_LED_RED
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or green by setting CONFIG_RUN_LED_GREEN. Setting CONFIG_RUN_LED_OFF will turn
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off the Run LED.
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Booting
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=======
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The system boots from either eMMC or SD card cage. It will first try to boot
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from the SD card cage. If this fails (missing or unbootable SD card) it will
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try to boot from the internal eMMC. The root file system is always expected to
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be located in the second partition of the device (eMMC or SD card) that pro-
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vided the boot loader.
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