* add arc mpu driver
* modify the corresponding kconfig and kbuild
* currently only em_starterkit 2.2's em7d configuration
has mpu feature (mpu version 2)
* as the minimum region size of arc mpu version 2 is 2048 bytes and
region size should be power of 2, the stack size of threads
(including main thread and idle thread) should be at least
2048 bytes and power of 2
* for mpu stack guard feature, a stack guard region of 2048 bytes
is generated. This brings more memory footprint
* For arc mpu version 3, the minimum region size is 32 bytes.
* the codes are tested by the mpu_stack_guard_test and stackprot
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
* add nested interrupt support for interrupts
+ use a varibale exc_nest_count to trace nest interrupt and exception
+ regular interrupts can be nested by regular interrupts and fast
interrupts
+ fast interrupt's priority is the highest, cannot be nested
* remove the firq stack and exception stack
+ remove the coressponding kconfig option
+ all interrupts (normal and fast) and exceptions will be handled
in the same stack (_interrupt stack)
+ the pros are, smaller memory footprint (no firq stack), simpler
stack management, simpler codes, etc.. The cons are, possible
10-15 instructions overhead for the case where fast irq nests
regular irq
* add the case of ARC in test/kernel/gen_isr_table
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
When you build application for em starterkit 2.3 em7d, it will
report error during build since it is not supported currently.
Signed-off-by: Huaqi Fang <huaqi.fang@synopsys.com>
em starterkit has two versions, 2.2 and 2.3.
Change soc.h to support both versions,
main changes are the interrupt connections.
Signed-off-by: Huaqi Fang <huaqi.fang@synopsys.com>
Since em starterkit has different firmware versions(2.2 and 2.3),
but the EM7D of 2.3 has new secureshield feature, which is not supported
in Zephyr, but EM7D of 2.2 is a normal EM core, which can be supported,
so we add support for 2.2 EM7D.
Signed-off-by: Huaqi Fang <huaqi.fang@synopsys.com>
The API name space for Bluetooth is bt_* and BT_* so it makes sense to
align the Kconfig name space with this. The additional benefit is that
this also makes the names shorter. It is also in line with what Linux
uses for Bluetooth Kconfig entries.
Some Bluetooth-related Networking Kconfig defines are renamed as well
in order to be consistent, such as NET_L2_BLUETOOTH.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Here are the main changes:
* board: Update EMSK onboard resources such as Button, Switch and LEDs
+ update soc.h for em7d, em9d, em11d
+ update board.h for em_starterkit board
* arc: Add floating point support and code density support
+ add kconfig configuration
+ add compiler options
+ add register definitions, marcos, assembly codes
+ fixes in existing codes and configurations.
* arc: Update detailed board configurations for cores of emsk 2.3
* script: Provide arc_debugger.sh for debugging em_starterkit board
+ make BOARD=em_starterkit debug
This will start openocd server for emsk, and arc gdb will connect
to this debug server, user can run `continue` command if user just
want to run the application, or other commands if debugging needed.
+ make BOARD=em_starterkit debugserver
This will start an openocd debugger server for emsk, and user can
connect to this debugserver using arc gdb and do what they want to.
+ make BOARD=em_starterkit flash
This will download the zephyr application elf file to emsk,
and run it.
Signed-off-by: Huaqi Fang <huaqi.fang@synopsys.com>
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types. There are few places we dont convert over to the new
types because of compatiability with ext/HALs or for ease of transition
at this point. Fixup a few of the PRI formatters so we build with newlib.
Jira: ZEP-2051
Change-Id: I7d2d3697cad04f20aaa8f6e77228f502cd9c8286
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
CONFIG_* usually come from Kconfig, rename variables that are locally
defined to avoid confusion about where they are set.
Change-Id: I83b8459913c5deb68dc1b9f5386b8934363a6d1f
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
I2C_CLOCK_SPEED Kconfig option is DW driver specific. It does not
define I2C interface speed but rather the I2C DW module clock speed.
It is confusing for a user of any other I2C driver than DW.
This patch renames this option to I2C_DW_CLOCK_SPEED and makes it
visible only for DW I2C driver.
Change-Id: I97f57332fd5cca644eabdef0968a0b2174b885ff
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Fix c6e27a05 was too aggressive. It turns out that bluetooth on the
Quark SE boards won't enable it's own UART, because it had always been
enabled. Apps that don't do it already will be broken.
Enable UART_QMSI_0 whenever BLUETOOTH_H4 is pulled in on this
platform.
Change-Id: I5e21c6004714adba8fb0fafa056dc2d62698a3d1
Issue: ZEP-1788
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
The defconfigs would always create a device for UART 0, which is
problematic in circumstances where both the x86 and ARC cores are
alive and one wants to use it in a non-default configuration.
Specifically: on Arduino 101 this is the bluetooth device and it
operates at 1MBps instead of of 115200kbps. If an x86 app sets this
up correctly, but then starts the ARC core running an app which
doesn't reference this UART at all, the device will still exist and
set up the (wrong!) configuration, clobbering the correct settings.
Just remove the "def-bool y" bits from the defconfig. There's no
need, users of these devices (e.g. the console) will enable them
anyway. There's no value to compiling it in without a configured
user.
Issue: ZEP-1677
Change-Id: I4a0e944f23705495433e9f3d0459065f131579cb
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
This commit removes the local implementation of enter_arc_state, where
the ARC is instructed to sleep, using instead the QMSI 1.4 functions.
Change-Id: Id489ad53851be50fc5e50add698891fcfaef3abe
Signed-off-by: Juan Solano <juanx.solano.menacho@intel.com>
Update the builtin QMSI code to 1.4 (RC2).
The below shim drivers were updated for API or interface changes:
- aio
- counter
- i2c_ss
- rtc
- wdt.
Also, arch soc specific power management code were updated.
Jira: ZEP-1572
Change-Id: Ibc8fae032a39ffb2c2c997f697835bc0208fd308
Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com>
Signed-off-by: Kuo-Lang Tseng <kuo-lang.tseng@intel.com>
Rename devices. For example, the two i2c devices in the
quark se sensor sub-system will have name string "I2C_0"
and "I2C_1", while the other two i2c devices accessible to
both x86 and arc will have name string "I2C_2" and "I2C_3".
This is valid only when you build arc binary.
It does not apply if you build x86 or arm binary. Similar change is
also made for GPIO and SPI.
Jira: ZEP-1588 ZEP-1614
Change-Id: Ibad4486e70e0aaf287763514a5a9d28b43bca094
Signed-off-by: Baohong Liu <baohong.liu@intel.com>
This patch changes Quark SE power drivers to support multicore scenarios
e.g. both LMT and ARC core are enabled and manage power.
Handling LPS states in multicore scenarios are dead simple because LPS
states are core-specific states. It means that putting the LMT core in
LPS doesn't affect the ARC core, and vice-versa. DEEP_SLEEP state, on
the other hand, affects both cores since it turns power off from the SoC
and both cores are shutdown. It means that if LMT puts the system in
DEEP_SLEEP, ARC core is shutdown even if it is busy handling some task.
In order to support the multicore scenario, this patch introduces the
SYS_POWER_STATE_DEEP_SLEEP_2 state to both ARC and x86 power drivers.
On ARC, this state works as following:
1) Save ARC execution context;
2) Raise a flag to inform the x86 core that ARC is ready to enter in
DEEP_SLEEP;
3) Enter in the lowest core-specific power state, which in this case is
LPSS.
On x86, DEEP_SLEEP_2 is very similar to DEEP_SLEEP. The difference relies
in the post_ops() which calls _arc_init() in order to start ARC core so
it can restore its context.
This patch also adds the test/power/multicore/ directory which provides
sample application to x86 and ARC cores in order to easily verify the
multicore support. In test/power/multicore/README.rst you can find more
details regarding the applications.
Jira: ZEP-1103
Change-Id: Ie28ba6d193ea0e58fca69d38f8d3c38ca259a9ef
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
This avoids asm files from having to explicitly define the _ASMLANGUAGE
symbol themselves.
Change-Id: I71f5a169f75d7443a58a0365a41c55b20dae3029
Signed-off-by: Benjamin Walsh <walsh.benj@gmail.com>
Replace the existing Apache 2.0 boilerplate header with an SPDX tag
throughout the zephyr code tree. This patch was generated via a
script run over the master branch.
Also updated doc/porting/application.rst that had a dependency on
line numbers in a literal include.
Manually updated subsys/logging/sys_log.c that had a malformed
header in the original file. Also cleanup several cases that already
had a SPDX tag and we either got a duplicate or missed updating.
Jira: ZEP-1457
Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
GCC 6.x for ARC does not recognize the options
-mARCv2EM and -mav2em anymore.
Both options replaced in Makefile by -mcpu=quarkse_em.
Change-Id: I9dec26dd64b4738976704a39455fe4241406db9e
Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
GCC 6.x for ARC does not recognize the options
-mARCv2EM and -mav2em anymore.
Both options replaced in Makefile by -mcpu=arcem.
Change-Id: Ic86bf51cd5fb1a67ba2cd75998cd907e26996347
Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
replace include <nanokernel.h> with <kernel.h> everywhere and also fix
any remaining mentions of nanokernel.
Keep the legacy samples/tests as is.
Change-Id: Iac48447bd191e83f21a719c69dc26233216d08dc
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Enable arc to access the i2c controller on I/O fabric.
There are two i2c controllers on quark se SoC. One is attached
to the I/O fabric and the other one is in the sensor system.
X86 cpu is only able to access the i2c controller on the I/O
fabric and the access is supported by existing code. HW allows
arc to access both controllers. But, the existing code only
gives arc access to the controller in the sensor sub-system.
Let's grant arc the access to the controller on I/O fabric as
well by the following changes.
1. Add i2c_qmsi.c into arc compilation.
2. Use the already defined macros to choose interrupt numbers
and do interrupt unmasking automatically based on the
compilation targets.
3. Add new symbols in Kconfig including driver names for both
controllers
Jira: ZEP-1189
Change-Id: I317da6038c50e0c8bd16f446182c1f8bdf6d3ba2
Signed-off-by: Baohong Liu <baohong.liu@intel.com>
Enable arc to access the spi controller on I/O fabric.
There are two spi controllers on quark se SoC. One is attached
to the I/O fabric and the other one is in the sensor system.
X86 cpu is only able to access the spi controller on the I/O
fabric and the access is supported by existing code. HW allows
arc to access both controllers. But, the existing code only
gives arc access to the controller in the sensor sub-system.
Let's grant arc the access to the controller on I/O fabric as
well by the following changes.
1. Add spi_qmsi.c into arc compilation.
2. Use the already defined macros to choose interrupt numbers
and do interrupt unmasking automatically based on the
compilation targets.
3. Add new symbols in Kconfig including driver names for both
controllers
Jira: ZEP-1190
Change-Id: I40a5d423d4b7986a897834d1a3831938005eda6f
Signed-off-by: Baohong Liu <baohong.liu@intel.com>
HW allows both arc and x86 to access the pwm attached to the
quark soc I/O fabric. The existing code only allows x86 to
do this. Let's give arc the access.
Change-Id: Ie88649fea41bf86b84876c260f97dd4c12fd0b81
Signed-off-by: Baohong liu <baohong.liu@intel.com>
When going into DEEP_SLEEP mode, the ARC core now saves
its context. This includes:
- All core registers
- Stack pointer
- Program counter (restored by jumping to the restore code)
The arc reset code now checks if the GPS0 bit 2 is set.
This is similar to the behavior of the x86 core done by
the QMSI bootloader which is setting GPS0 bit 1 in order
to call the restore path instead of cold boot path.
The sample has been adapted in order to support the ARC.
Jira: ZEP-1222
Change-Id: I375f03b16b8a5fd1f07ead55cf7e4947d6290c9f
Signed-off-by: Julien Delayen <julien.delayen@intel.com>
Move interrupt initialization for the ARC to its own
device. The init function for the arc will be only
doing platform specific operations
Jira: ZEP-1288
Change-Id: Icb04c3622890021c65cd24cecf6cafee6c37caf9
Signed-off-by: Julien Delayen <julien.delayen@intel.com>
As flags are modified when entering sleep, add cc to
clobber list.
Jira: ZEP-1408
Change-Id: Ia80bc1c7ddedb9d9963c47108372a90928597c1d
Signed-off-by: Julien Delayen <julien.delayen@intel.com>
Memory access could be reorderd around sleep. Add memory
in clobber list.
Jira: ZEP-1408
Change-Id: I49df2542e0059ba76a262fbda58eb46b86e89bea
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
Zephyr is always setting irqs to be level triggered as
required by the core. It is unnecessary to set it to
level again while entering sleep states.
Change-Id: I10f919d619af2e1ab05dc85a67766929b6ae9402
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
When sleep instruction is called with interrupts enabled, the
interrupt priority threshold bits need to be set. Only interrupts
with equal or higher priority will wake the sleep. Currently it
is set to 0 unintentionally and only priority 0 interrupt can
wake the sleep.
Jira: ZEP-1349
Change-Id: I927e259345cc37c5ecc4dfdcde996dd16443e61b
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
Add Low Power States support to the power shim layer
and show the usage in the quark_se sample.
States are defined as follow:
- SYS_POWER_STATE_CPU_LPS: SS2 with LPSS enabled
- SYS_POWER_STATE_CPU_LPS_1: SS2 with LPSS disabled
- SYS_POWER_STATE_CPU_LPS_2: SS1 with LPSS disabled
Jira: ZEP-994
Change-Id: Ie4b93f6e539cb53fc035be00280b66b2cb0d9fea
Signed-off-by: Julien Delayen <julien.delayen@intel.com>
PRIMARY, SECONDARY, NANOKERNEL, MICROKERNEL init levels are now
deprecated.
New init levels introduced: PRE_KERNEL_1, PRE_KERNEL_2, POST_KERNEL
to replace them.
Most existing code has instances of PRIMARY replaced with PRE_KERNEL_1,
SECONDARY with POST_KERNEL as SECONDARY has had a longstanding bug
where the documentation specified SECONDARY ran before the kernel started
up, but actually ran afterwards.
Change-Id: I771bc634e9caf7f17dbf214a270bc9967eed7d32
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
An implementation to flush multiple d-cache lines has been added
per the top-level cache.h API. ZEP-1153 was opened to express
the need for MORE i-cache and d-cache APIs. For example, the current
cache.h API doesn't provide a means to invalidate d-cache lines
and has nothing for i-cache.
I've also modified some of the i-cache related aux registers to have
better names so that they won't be confused with d-cache.
These changes are for
ZEP-1176.
Change-Id: If4c5410451cc40dcd5618fc871093c8febf7e061
Signed-off-by: Chuck Jordan <cjordan@synopsys.com>
The GPIO and AON GPIO ports are available to both the x86 and ARC
cores, but the driver always assumed only the x86 at the time of
configuring interrupts.
Use the available macros to set the correct values independently of
which core it's being built for.
Jira: ZEP-1030
Change-Id: I310afcc48780fbe1cac9dc3368a6de11bd797fda
Signed-off-by: Iván Briano <ivan.briano@intel.com>
The SoC level peripherals are accesible by both cores, while the SS
ones are only available to the sensor subsystem. Since the ARC core can
make use of both drivers at the same time, we need to be able to
differentiate their configuration values somehow.
Also disable the SoC GPIO for the ARC by default, as it still needs
more changes to be usable.
Jira: ZEP-1030
Change-Id: Ic5415c404ecd32a3e560467b6f5eaa873a515d72
Signed-off-by: Iván Briano <ivan.briano@intel.com>
David B. Kinder