u-boot/board/congatec/conga-qeval20-qa3-e3845
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
..
acpi SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
.gitignore x86: baytrail: Add .gitignore for ACPI enabled boards 2016-05-23 15:18:00 +08:00
conga-qeval20-qa3.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
dsdt.asl SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
Kconfig x86: conga-qeval20-qa3-e3845: Select SERIAL_RX_BUFFER via Kconfig 2017-08-24 11:00:47 +08:00
MAINTAINERS x86: Add defconfig for theadorable-x86-conga with PCIe x4 blobs 2017-08-08 21:13:07 +08:00
Makefile SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
README x86: conga-qeval20-qa3: Add README to explain the console UART options 2016-10-11 11:55:33 +08:00
start.S SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00

------------------------------
U-Boot console UART selection:
------------------------------

The U-Boot port for this congatec board currently supports two different
configurations (defconfig files). The only difference is the UART that
is used as the U-Boot console UART. The default defconfig file:

conga-qeval20-qa3-e3845_defconfig

provides this console on the UART0 which is provided via a Winbond
Super-IO chip connected on the congatec Qseven 2.0 evaluation carrier
board (conga-QEVAL). This UART is the one provided with a SubD9
connector on the mainboard (the low one). The 2nd defconfig file:

conga-qeval20-qa3-e3845-internal-uart_defconfig

provides the U-Boot console on the BayTrail internal legacy UART,
which is routed from the QSeven SoM to the X300 connector on the
baseboard. Here is called COM2. The baseboard already provides the
RS232 level shifters. So a TTL-USB UART adapter does not work in
this case. The signals need to get connected directly to the
RS232 level signals of the PC UART via some adapter cable.