| Message ID | 20160905090326.9881-1-sr@denx.de |
|---|---|
| State | Superseded |
| Delegated to: | Bin Meng |
| Headers | show |
Hi Stefan, On Mon, Sep 5, 2016 at 5:03 PM, Stefan Roese <sr@denx.de> wrote: > This patch adds a small README to explain the 2 defconfig files and its > usage for the different console UART options. > > Signed-off-by: Stefan Roese <sr@denx.de> > Cc: Bin Meng <bmeng.cn@gmail.com> > Cc: Simon Glass <sjg@chromium.org> > --- > board/congatec/conga-qeval20-qa3-e3845/README | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > create mode 100644 board/congatec/conga-qeval20-qa3-e3845/README > Reviewed-by: Bin Meng <bmeng.cn@gmail.com> One nits below: > diff --git a/board/congatec/conga-qeval20-qa3-e3845/README b/board/congatec/conga-qeval20-qa3-e3845/README > new file mode 100644 > index 0000000..a784f3c > --- /dev/null > +++ b/board/congatec/conga-qeval20-qa3-e3845/README > @@ -0,0 +1,23 @@ > +------------------------------ > +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. nits: the ending period should be , > +Which is routed from the QSeven SoM to the X300 connector on the nits: Which -> which > +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. > -- Regards, Bin
diff --git a/board/congatec/conga-qeval20-qa3-e3845/README b/board/congatec/conga-qeval20-qa3-e3845/README new file mode 100644 index 0000000..a784f3c --- /dev/null +++ b/board/congatec/conga-qeval20-qa3-e3845/README @@ -0,0 +1,23 @@ +------------------------------ +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.
This patch adds a small README to explain the 2 defconfig files and its usage for the different console UART options. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Simon Glass <sjg@chromium.org> --- board/congatec/conga-qeval20-qa3-e3845/README | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 board/congatec/conga-qeval20-qa3-e3845/README