Add a Kconfig option ESPI_NPCX_RESET_SLP_SX_VW_ON_ESPI_RST.
When the option is enabled, the hardware resets the SLP_S3/SLP_S4/SLP_S5
virtual wires when the eSPI_Reset is asserted. This is required to
synchronize these virtual wires on the ungraceful global reset.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
On the new Intel SoC, the "Valid" bit of the Virtual Wire is set only for
Virtual Wires that undergo changes. This behavior differs from previous
generations. Therefore, to maintain backward compatibility, a conditional
check for the virtual wire valid bit is added for processing the virtual
wire level.
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
This commit updates the FLASHRXBUF parsing functionality of eSPI TAF.
It ensures that data can be read correctly from FLASHRXBUF[0].
And, the eSPI TAF request can be parsed correctly.
Signed-off-by: Tom Chang <CHChang19@nuvoton.com>
Add missing braces to comply with MISRA C:2012 Rule 15.6 and
also following Zephyr's style guideline.
Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
The Host Interface Type in the DEVCNT register sets the HIF type
(either eSPI or LPC).
Currently, it is configured in the host-interface-related drivers like
eSPI or SHI. However, some I/O pads sourced from VHIF in the other
modules such as GPIO and I3C also rely on this field. It might be
problematic when using those I/Os without enabling eSPI or SHI drivers.
This commit moves the setting from the specific drivers to the global
system initialization function scfg_init().
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Replace CONFIG_ESPI_SLAVE by CONFIG_ESPI_TARGET
Replace CONFIG_ESPI_SAF by CONFIG_ESPI_TAF
Replace ESPI_BUS_SAF_NOTIFICATION with ESPI_TAF_BUS_NOTIFICATION in API
Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
1) Replace master/slave in API for new terms in eSPI spec 1.5
2) Reflect eSPI VW change and macro changes across eSPI drivers
3) Update terms in eSPI driver sample and eSPI test driver
Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
This CL updates the event data returned by espi_reset.
Return 0 for eSPI bus in reset, and 1 for eSPI bus out-of-reset.
Signed-off-by: Tom Chang <CHChang19@nuvoton.com>
Replace Nuvoton NPCX series definitions with new Kconfig definitions in
the npcx drivers. The benefit of this approach is that we won't touch
the npcx driver sources again during introducing a new npcx series next
time.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Since VWGPSM (Virtual Wire GPIO Target-to-Controller) registers are
introduced in npcx9 and later series, the CL moves the related DT nodes
from npcx-espi-vws-map.dtsi (Used for all npcx series) to the specific
dtsi files for npcx9 and npcx4 series.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
To reduce the interrupt latency of MIWU events, the driver prepares a
dedicated callback function item list for each MIWU group in this PR. We
needn't check the MIWU table and group of the event in ISR. And the
maximum item number of each list is also limited to 8. After applying
this PR, the interrupt latency reduces to ~10us consistently.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Change automated searching for files using "IRQ_CONNECT()" API not
including <zephyr/irq.h>.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Host interface interrupts should be enabled explicitly via eSPI API
after the eSPI configuration and callbacks are set.
If we enable them during driver initialization and the host sends a eSPI
transaction before the eSPI configuration and callbacks are set, we may
encounter unexpected behavior.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Add the flash channel support by implementing the controller attached
flash sharing APIs, including flash_read, flash_write, and flash_erase.
For flash_read, the max data payload the module can support is 64 bytes
in one transaction.
For flash_write, the max data payload the module can support is 16
bytes in one transaction.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Added code to enable platform specific Virtual Wire GPIOs. With this
change, able to send the USB-C overcurrent Virtual Wire event to
Meterolake SOC.
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Following zephyr's style guideline, all if statements, including single
line statements shall have braces.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Replace soc-specific pin functions with Zephyr pinctrl api functions for
pin-mux configuration in npcx eSPI and host_subs driver.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Enabling an eSPI channel (r.g. Peripheral Channel, Virtual Wire Channel,
etc.) during an eSPI transaction might (with low probability) cause the
eSPI_SIF module to transition to a wrong state and therefore response
with FATAL_ERROR on an incoming transaction.
This CL workarounds this issue by clearing the bit 4 of NPCX eSPI
specific register#2.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Re-running the script that checks for the const qualifier missing on
struct device ISR's parameter.
The script also changes the parameter 'arg' to 'dev' when relevant.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This corrects the following:
1. The priority of type cast is lower than member access. So don't need
the redundant parentheses.
2. The macro should be added to the parentheses.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
Convert the various device_get_binding() calls used to get the device
clock node to use DEVICE_DT_GET. The latter is processed at link time,
so it should be a bit more efficient.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
This CL replaces series-prefix "npcx7-" with family-"npcx-" for npcx dts
nodes such as 'espi-vws-map' and 'miwus-int-map'. Since we plan to
introduce the npcx9 and later series, adding a new node such as
npcx9-espi-vws-map for each series is more complicated and not
necessary.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL introduces two kinds of op codes for espi_api_lpc_read_request
and espi_api_lpc_write_request Zephyr espi api functions.
One is for supporting ACPI and shared memory region to access ACPI data.
The other is customized for certain platforms such as Chromebook and so
on.
This CL also introduced the following configurations to add the
flexibility of these settings.
1. ESPI_PERIPHERAL_ACPI_SHM_REGION_PORT_NUM:
Host I/O peripheral port number for shared memory region. The default
value is default 0x0900
2. ESPI_NPCX_PERIPHERAL_ACPI_SHD_MEM_SIZE:
Host I/O peripheral port size for shared memory in npcx series.
Please notice the valid value in npcx ec series for this option is
8/16/32/64/128/256/512/1024/2048/4096 bytes. The default value is 256
bytes.
This CL also turn off hardware-wire feature which generates VW events
that connected to hardware signals such as SMI and SCI. We will set
VW output events directly via espi_api_send_vwire() api function.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Convert espi drivers to use new DT variants of the DEVICE APIs.
DEVICE_AND_API_INIT -> DEVICE_DT_DEFINE
DEVICE_GET -> DEVICE_DT_GET
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This CL replaces all DT_ prefix with NPCX_DT_ for all macros used
for providing npcx device information in soc_dt.h It avoided the
ambiguity with the DT_ prefix for system DT macros/defines.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL fixed the wrong comparison during searching the vw signal
that issued interrupt from MIWU in espi_vw_generic_isr().
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
This CL adds more comments for each macro functions used for device tree
file for better explanations. It also changes all hex values in soc.c to
lower case.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
This CL contains the drivers of NPCX Host Sub-Modules that serve as an
interface between the Host and Core domains. For most of them, the Host
can configure these modules via eSPI(Peripheral Channel)/LPC by
accessing 'Configuration and Control register Set' which IO base address
is 0x4E as default. And the interrupts in core domain help handling any
events from host side.
In this commit, we introduced six host sub-modules. It includes:
1. Keyboard and Mouse Controller (KBC) interface.
2. Power Management (PM) channels.
3. Shared Memory mechanism (SHM).
4. Core Access to Host Modules (C2H).
5. Mobile System Wake-Up functions (MSWC).
6. Serial Port (Legacy UART)
The tasks in application layer such as 8042, ACPI and host command can
cooperation with this driver by connecting api or callback functions.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
In npcx7 series, all of them support the Intel Enhanced Serial
Peripheral Interface (eSPI) Revision 1.0. This specification provides a
path for migrating host sub-devices via LPC to a lower pin count, higher
bandwidth bus. In addition to Host communication via the peripheral
channel, it provides virtual wires support, out-of-band communication,
and device mastering option over the Chipset SPI flash.
Becisdes introducing eSPI device in npcx7, this CL also includes:
1. Add eSPI device tree declarations.
2. Add npcx7-espi-vws-map.dtsi to present the relationship between eSPI
Virtual-Wire signals, eSPI registers, and wake-up input sources.
3. Zephyr eSPI api implementation.
4, Add OOB (Out of Band tunneled SMBus) support.
5. Add configuration files for eSPI test suites.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
