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