Some ARC deveopment boards have q bit funny memory maps.
For example IoT Development Kit board has those areas
that we use in Zephyr:
1. 256 KiB of ICCM @ 0x2000_0000 for code
(i.e. ".text" section goes here)
2. 128 KiB of DCCM @ 0x8000_0000 for data
(i.e. ".data" section goes here)
And so objcopy dumps 0x6000_0000 bytes (which is ~ 1.5Gib or raw data)
in zephyr.hex which gives us ~ 4.3 GiB of resulting zephyr.hex size.
W/o gap filling we're back at normal tens of KiB.
Given we have currently no need to fill the gaps anyways we disable it
for all ARC devboards.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
All board defconfig files currently set the architecture in addition to
the board and the SoC, by setting e.g. CONFIG_ARM=y. This spams up
defconfig files.
CONFIG_<arch> symbols currently being set in configuration files also
means that they are configurable (can be changed in menuconfig and in
configuration files), even though changing the architecture won't work,
since other things get set from -DBOARD=<board>. Many boards also allow
changing the architecture symbols independently from the SoC symbols,
which doesn't make sense.
Get rid of all assignments to CONFIG_<arch> symbols and clean up the
relationships between symbols and the configuration interface, like
this:
1. Remove the choice with the CONFIG_<arch> symbols in arch/Kconfig and
turn the CONFIG_<arch> symbols into invisible
(promptless/nonconfigurable) symbols instead.
Getting rid of the choice allows the symbols to be 'select'ed (choice
symbols don't support 'select').
2. Select the right CONFIG_<arch> symbol from the SOC_SERIES_* symbols.
This makes sense since you know the architecture if you know the SoC.
Put the select on the SOC_* symbol instead for boards that don't have
a SOC_SERIES_*.
3. Remove all assignments to CONFIG_<arch> symbols. The assignments
would generate errors now, since the symbols are promptless.
The change was done by grepping for assignments to CONFIG_<arch>
symbols, finding the SOC_SERIES_* (or SOC_*) symbol being set in the
same defconfig file, and putting a 'select' on it instead.
See
https://github.com/ulfalizer/zephyr/commits/hide-arch-syms-unsquashed
for a split-up version of this commit, which will make it easier to see
how stuff was done. This needs to go in as one commit though.
This change is safer than it might seem re. outstanding PRs, because any
assignment to CONFIG_<arch> symbols generates an error now, making
outdated stuff easy to catch.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
- update doc for different core configuration.
- fix some bugs in dts related files.
- add dts config and defconfig for different core configuration.
- end files with a newline in boards/arc/emsdp/board.dtsi
- remove unused head in boards/arc/emsdp/doc/index.rst
- ARC_MPU_VER in different core is fixed. so remove some useless code
for ARC_MPU_VER judgements in Kconfig.defconfig.* files for emsdp
Signed-off-by: Watson Zeng <zhiwei@synopsys.com>
Alexey Brodkin