The max size was determined by looking at the ARCH of the cpu. This really
comes from the ip configuration when generated. Add `max-xfer-size`
property to the devicetree.
Signed-off-by: Ryan McClelland <ryanmcclelland@meta.com>
The old CONFIG_UART_NS16550_ACCESS_IOPORT has been used to
indicate whether to access the NS16550 UART via IO port
before device tree is used to describe hardware. Now we have
device tree, and we can specify whether a particular UART
needs to be accessed via IO port using property io-mapped.
Therefore, CONFIG_UART_NS16550_ACCESS_IOPORT is no longer
needed (and thus also CONFIG_UART_NS16550_SIMULT_ACCESS).
Remove these two kconfigs and modify code to use device tree
to figure out how to access the UART hardware.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Introduce DesignWare ARC Data Fusion IP Subsystem(DFSS) SPI
driver for ARC boards, i.e. EMSDP, which uses DW SPI to controll
SPI-Flash and DFSS SPI to connect external devices. Both drivers
share most source code, but DFSS uses ARC auxiliary registers.
Move FIFO depth setting to device tree.
Signed-off-by: Siyuan Cheng <siyuanc@synopsys.com>
There is a spi-flash fl256s on emsdp board, which can be
contolled by DesignWare SPI driver. Now add DW SPI and
SPI-FLASH support for emsdp board.
Signed-off-by: Siyuan Cheng <siyuanc@synopsys.com>
ICI (Inter-Core Interrupt Unit) interrupts and priorities were hardcoded
in C files. This patch moves this information to Devicetree and updates
code to make use of it.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
sysconf base address was hardcoded in <soc.h>. Create a new compatible
and define it in Devicetree, where hardware needs to be described.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Use Devicetree to describe secure timer0 instead of hardcoding values in
<soc.h>.
DT files have been structured to match the following requirements: In
case of sectimer0 - it's should be only enabled for:
- emsdp_em7d_esp.dts
- em_starterkit_em7d.dts
- nsim_sem_mpu_stack_guard.dts
- nsim_sem.dts
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Use DT_INST_FOREACH_STATUS_OKAY to reduce duplicated code for each
instance.
We make interrupts optional since they aren't always available.
Signed-off-by: Kumar Gala <galak@kernel.org>
The ns16550 flags reg-shift property as optional. In case it is not
supplied, the ns16550 driver relies on a value defined in <soc.h>, or,
by default it takes 4 (shift by 2).
This patch adds the property to all ns16550 nodes, with the following
values:
- 2 if SoC did not have any custom value defined by
UART_REG_ADDR_INTERVAL (corresponds to 1 << 2 = 4)
- If SoC defined DEFAULT_REG_INTERVAL (snps_arc_iot/it8xxx2), use such
value (4=2, 2=1, 1=0).
These changes will allow simplifying the ns16550 driver.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Pinmux is deprecated (see #39740) so let's get rid of
it's usage for HSDK board.
As we call pinmux only once at init phase we simply do
register setup in platform code instead of pinmux.
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
In order to bring consistency in-tree, migrate all dts code to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to zephyrproject-rtos#45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
bits property indicates the number of in-use slots of available slots
for GPIOS. We have a similar property ngpios in gpio-controller.yaml,
we will use ngpios to calculate port_pin_mask. Let's remove bits and
only use ngpios.
Signed-off-by: Watson Zeng <zhiwei@synopsys.com>
Remove the device_type = "memory" property from the PSRAM node. We make
the slightly arbitrary distinction of using 'mmio-sram' compatible for
memories that don't need some kinda of dram style configuration or may
be on die.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
For true mmio-sram, arc,iccm, arc,dccm nodes we should not be setting
device_type = "memory". This should be used for true DRAM regions of
memory and not on SoC SRAMs.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
By defaut, only one uart is used as console.
Disable unused peripherals in dts to avoid
conflicts (issue #23475), save memory footprint,
and reduce the boot time.
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
Fix the following device tree warnings:
unit-address and first reg (0x20000) don't match for iccm@0
unit-address and first reg (0x80010000) don't match for dccm@80000000
Since the em_starterkit_em7d_normal has a different base address for
iccm & dccm, and most of the em_starterkit variants have different sizes
for iccm & dccm. Just define the nodes in the specific
em_starterkit*.dts file and remove them from emsk.dtsi. This removes
the issue reported in the warning.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
On power-on boot-ROM is mapped to address 0 in HSDK board.
Normally later when U-Boot gets started by boot-ROM we change mappings
so that real DDR is mapped to entire address space including 0:
https://elixir.bootlin.com/u-boot/latest/source/board/synopsys/hsdk/hsdk.c#L474
But if U-Boot is not started (which is controlled by the BIM dip-switch
on the board) boot-ROM remains mapped to 0, and essentially any attempt
to write to that location fails, thus we cannot upload contents of our
target Elf there even with JTAG.
The next logical option is to use beginning of the non-translated
memory region 0x8000_0000 which we typically use for loading
U-Boot & Linux kernel on ARC boards. But in case of HSDK
we have DCCM (Data Closely-Coupled MEmory - fast on-chip SRAM)
mapped there and since we cannot execute code from DCCM
we need to skip that region as well which gives us the next option
being 0x9000_0000 . That's because DCCM owns entire 256 MiB "aperture"
even though it may have much smaller size up-to 8 MiB.
We are mapping only 5 apertures because the last two
(0xe000_0000-0xffff_ffff) are used for peripherals and AXI.
Signed-off-by: Evgeniy Didin <didin@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
The arc_iot.dtsi used "intel,qmsi-ss-gpio" and "intel,qmsi-ss-i2c"
compatiables, however we have no drivers for these and it seems wrong
that the ARC platform would utilize such compatiables. Remove the
compatiable fields for now (proper one's can be added when there are I2C
and GPIO drivers for this platform).
Also remove the binding files associated with "intel,qmsi-ss-gpio" and
"intel,qmsi-ss-i2c" as nothing in tree utilizes them.
Fixes: 19227
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit includes the initial support of ARC HS Development Kit:
* hsdk soc support
* hsdk board support
* no mmu support, so no userspace
* smp support
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
- 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>
The "{d,i}ccm" nodes should not have had a 'device_type' property.
Remove it from the cases that we clearly know are {d,i}ccm.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This board and SoC was discontinued some time ago and is currently not
maintained in the zephyr tree.
Remove all associated configurations and variants from the tree.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This commit adds a fixed clock node (representing clock driving
system bus). The added node is then referenced by peripherals requiring
information about driving clock frequency.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
This commit adds 'clock-frequency' property to the cpu nodes.
The clock frequency specified in the added property is used
during platform configuration. Examples:
- The SWO logger uses clock frequency to configure SWO output.
- Plenty of platforms need CPU clock specified for their HAL.
- Most of devices with USB needs information about CPU clock
in order to configure USB clock source.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
A parallel PCI implementation ("pcie") is added with features for PCIe.
In particular, message-signaled interrupts (MSI) are supported, which
are essential to the use of any non-trivial PCIe device.
The NS16550 UART driver is modified to use pcie.
pcie is a complete replacement for the old PCI support ("pci"). It is
smaller, by an order of magnitude, and cleaner. Both pci and pcie can
(and do) coexist in the same builds, but the intent is to rework any
existing drivers that depend on pci and ultimately remove pci entirely.
This patch is large, but things in mirror are smaller than they appear.
Most of the modified files are configuration-related, and are changed
only slightly to accommodate the modified UART driver.
Deficiencies:
64-bit support is minimal. The code works fine with 64-bit capable
devices, but will not cooperate with MMIO regions (or MSI targets) that
have high bits set. This is not needed on any current boards, and is
unlikely to be needed in the future. Only superficial changes would
be required if we change our minds.
The method specifying PCI endpoints in devicetree is somewhat kludgey.
The "right" way would be to hang PCI devices off a topological tree;
while this would be more aesthetically pleasing, I don't think it's
worth the effort, given our non-standard use of devicetree.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
The initial support of iotdk which is a board based on Synopsys
ARC IoT SoC.
In this commit, it includes
* processor support
* UART driver
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
There are different interrupt numbers for R22 v R23. Before this was
being handled via using Kconfig symbol CONFIG_BOARD_EM_STARTERKIT_R23 in
emsk_dt.h. Since we want to remove use of Kconfig in dts we handle this
via different dtsi files and having the proper one included by the
proper board revision dts file.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Towards removing Kconfig from DTS we need to move setting of the sizes
of ICCM/DCCM into the SoC specific DTS files and out of emsk_dt.h
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Newer DTC now warns about mismatch between the reg and unit-address.
Most of these cases are due to case not matching, so fix thoses so
everything is lowercase.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
patch adds the device binding for qmsi watchdog and device node
for socs which are using wdt qmsi driver.
Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Convert over arc based boards to use device tree instead of board.h to
describe buttons & LEDs. There are a few boards that the button gpio
flags need validation.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Makes the designware spi driver consistent with other spi drivers by
selecting HAS_DTS_SPI in the driver. This required adding spi nodes and
dts fixups to several arc and x86 socs, as well as enabling those nodes
in associated boards.
Also refactors the driver to use the base address, interrupt number, and
interrupt priority from dts.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
We get several warnings of the form:
Warning (unit_address_vs_reg): /cpus/arcv2-intc@0:
node has a unit name, but no reg property
Fix by removing the unit address from the nodes. Some cases we had a
reg property and a unit address for such interrupt controllers, in those
cases remove both the reg & unit address in the node name.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
