As a slow FPGA platform with max. freq < 25 Mhz,
the default CON_SYS_CLOCK_TICKS_PER_SEC=10000 is
not suitable. CON_SYS_CLOCK_TICKS_PER_SEC=100 is
a better value.
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
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>
The ARC HS is a family of high performance CPUs from Synopsys
capable of running wide range of applications from heavy DPS
calculation to full-scale OS.
Still as with other ARC cores ARC HS might be tailored to
a particular application.
As opposed to EM cores ARC HS cores always have support of unaligned
data access and by default GCC generates such a data layout with
so we have to always enable unaligned data access in runtime otherwise
on attempt to access such data we'd see "Unaligned memory exception".
Note we had to explicitly mention CONFIG_CPU_ARCEM=y in
all current defconfigs as CPU_ARC{EM|HS} are now parts of a
choice so we cannot simply select ether option in board's Kconfig.
And while at it change "-mmpy-option" of ARC EM to "wlh1"
which is the same as previously used "6" but matches
Programmer's Reference Manual (PRM) and is more human-friendly.
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
The ARC timer is a MHz-scale cycle counter and works very well with
the new 10 kHz default tick rate. Remove the settings for ARC
hardware.
Note that the nsim board definitions are left at 100 Hz. That is a
software emulation environment that (like qemu) exposes the host clock
as "real" time and thus is subject to clock jitter due to host
scheduling.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier. Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.
By default all files without license information are under the default
license of Zephyr, which is Apache version 2.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The original em7d, em9d and em11d are different configurations of
em_starterkit. They have the same peripherals, e.g. uart, spi, gpio
, ddr. The differences of them are in arc core configurations, interrupt
number assignment.
So em7d, em9d and em11d can be viewed in the same SoC family or SoC
series.
Referring other arch's implementation, this commit merges em7d, em9d
and em11d into the same SoC, named snps_emsk. This will eliminate
unnecessary duplication and make it easier for future maintainment.
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
Change TICKS_PER_SEC from 1000 to 100
* em_starterkit is a FPGA board with cores running at max 30 Mhz.
1000 ticks per second is a little heavy for it.
* the tests/kernel/common requires 200 ticks per second at most,
or the testcase will stall.
disable the generation of bin file.
* there is no flash in em_starterkit
* there is huge gap between ICCM and DCCM which will cause the bin
file too large, alomst 2GB
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
Refering the ARM's implementation, the initial support of memory
domain in ARC is added:
* changes in MPU drivers
* changes in Kconfig
* codes to configure memory domain during thread swap
* changes in linker script template
* memory domain related macro definitions
the commited codes are simply tested through
samples/mpu/mem_domain_apis_test.
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
As em7d is supported, all configurations of em_starter_kit version 2.3
are supported. Update all the defconfig to version 2.3.
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
