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Diffstat (limited to 'board/bachmann/ot1200/README')
| -rw-r--r-- | board/bachmann/ot1200/README | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/board/bachmann/ot1200/README b/board/bachmann/ot1200/README new file mode 100644 index 0000000..c03d44e --- /dev/null +++ b/board/bachmann/ot1200/README @@ -0,0 +1,20 @@ +U-Boot for the Bachmann electronic GmbH OT1200 devices + +There are two different versions of the base board, which differ +in the way ethernet is done. The variant detection is done during +runtime based on the address of the found phy. + +- "mr" variant +FEC is connected directly to an ethernet switch (KSZ8895). The ethernet +port is always up and auto-negotiation is not possible. + +- normal variant +FEC is connected to a normal phy and auto-negotiation is possible. + + +The variant name is part of the dtb file name loaded by u-boot. This +make is possible to boot the linux kernel and make use variant specific +devicetree (fixed-phy link). + +In order to support different display resoltuions/sizes the OT1200 devices +are making use of EDID data stored in an i2c EEPROM. |