Switch nSIM from custom ARC UART to ns16550 model. That will
allow us to use zephyr images built for nSIM on other platforms
like HAPS, QEMU, etc...
This patch do:
* switch nSIM board to ns16550 UART usage
* change nSIM simulator configuration to use ns16550 UART model
* drop checks for CONFIG_UART_NSIM in ARC code
* update nSIM documentation
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Same deal as in commit eddd98f ("kconfig: Replace some single-symbol
'if's with 'depends on'"), for all symbols defined within defconfig
files. See that commit for an explanation.
Maybe 'if's were used originally to mirror the 'if's in the main Kconfig
files, and then it got copied around by people assuming 'if' must work
differently from 'depends on'. It doesn't match in every spot at least.
Better to keep it simple and just consistently use 'depends on' when
it's a single symbol/choice I think. Helps reinforce that 'if' isn't
magic too.
Verified by printing all Kconfig menu nodes (symbols, choices, menus,
etc.) before and after the change and diffing (should show no
difference).
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This will allow us to easily specify other CPUs looking
forward and not rely on any default value.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
ARC nSIM simulates all flavors or ARC cores so there's
no point in limiting its usage to ARC EM family only.
Moreover with upcoming addition of ARC HS family support
in Zephyr we'll be re-using nSIM "board" for them as well.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Eugeniy Paltsev