[coreboot-gerrit] Patch merged into coreboot/master: pcengines/apu1: Add RS485 configuration
gerrit at coreboot.org
gerrit at coreboot.org
Fri Oct 28 16:56:59 CEST 2016
the following patch was just integrated into master:
commit e1c36aecd8c5ad580595da58e180b06195df5f00
Author: Kyösti Mälkki <kyosti.malkki at gmail.com>
Date: Tue Oct 13 15:01:15 2015 +0300
pcengines/apu1: Add RS485 configuration
In RS485 mode RTS line acts as a transceiver direction control.
The datasheet is not very clear about the polarity but register setting
here is tested to drive nRTS line high when transmitting.
Also note revision of B of the super-IO has errata and 8N1 setting does
not work properly, you would need revision C of the chip assembled to
fix this.
Change-Id: I705fe0c5a5f8369b0a9358a64c74500238b5c4ba
Signed-off-by: Kyösti Mälkki <kyosti.malkki at gmail.com>
Reviewed-on: https://review.coreboot.org/14998
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter at users.sourceforge.net>
Reviewed-by: Felix Held <felix-coreboot at felixheld.de>
See https://review.coreboot.org/14998 for details.
-gerrit
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