The FIU/UMA module in the NPCX chip provides an dedicated SPI interface
to access the SPI flash. This commit adds the driver support for it.
With this commit, the application can call the flash APIs
(via spi_nor.c) to access the internal flash of NPCX EC chips.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Change-Id: I32bbf09f6e014b728ff8e4692e48151ae759e188
The parameters to FIELD() should be the position and size of each bit
field. Correct the size of IOMODE and MAXFREQ. Otherwise, the MAXFREQ
field is overwritten by the IOMODE update during espi_npcx_configure().
Signed-off-by: Diana Zigterman <dzigterman@google.com>
The host interface type (eSPI/SHI) is selected via HIF_TYP_SEL field in
DEVCNT register. This commit adds a function to set it.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
The booter (bootloader) behavior may be different in different NPCX
chip series. One example is that the booter sets host interface type in
NPCX7 series but leave the firmware to set it in NPCX9 series.
This commit adds a new DT node to record variants in its properties.
NPCX drivers can understand if they need to configure the related
setting by checking the node's properties.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
The KBC/ACPI event data is 4-byte in width and composed of
event/data/type fields. However, the field position is defined by each
chip vendor via macro and not unified in the current implementation.
The commit uses the structure bit field to define and unify the field
position. It helps the application access it with a common approach.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
This CL replaces offset macros of pmc 'multi-registers' such as
PWDWN_CTLn with internal inline functions for better readability.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL replaces offset macros of scfg 'multi-registers' such as DEVALTn
and LV_GPIO_CTLn with internal inline functions for better readability.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Define SoC hooks as weak symbols so this way applications can
overwritten them defining strong symbols.
The problem is that currently SoCs are defining these interfaces as
strong symbol inhibiting the possibility of applications bring their
own implementation.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Add the missing includes to make the header more portable. It currently
requires other headers to be included before it.
Signed-off-by: Yuval Peress <peress@chromium.org>
This commit includes the following:
1. Add symbol for choice option. So we can override the default value
by an earlier definition.
2. NPCX9 doesn't support 33MHz SPI clock in the header. So disable the
option for NPCX9.
3. NPCX9 support 512K flash. Change default to 512k for NPCX9.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
To be able to get a tokenize DT string without the quotes. Deprecate
also DT_ENUM_TOKEN and DT_ENUM_UPPER_TOKEN.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
This commit adds a new Kconfig option CLOCK_CONTROL_NPCX_EXTERNAL_SRC.
With this option enabled, the internal 32.768 KHz clock (LFCLK) is
generated by the on-chip Crystal Oscillator (XTOSC). Otherwise, the
LFCLK is generated by the Low-Frequency Clock Generator (LFCG).
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
NPCX power.c use LOG_MODULE_DECLARE(soc), but NPCX chip doesn't
register soc log module. This CL register soc log in soc.c to fix NPCX
build error for power management & log system.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
The PS/2 module in npcx provides a hardware accelerator mechanism
including an 8-bit shift register, a state machine, and control logic
that handle both the incoming and outgoing data. The hardware
accelerator mechanism is shared by 4 PS/2 channels. To support it,
this CL separates the PS/2 driver into channel and controller drivers.
The controller driver is in charge of the PS/2 transaction. The channel
driver is in charge of the connection between the Zehpyr PS/2 API
interface and controller driver.
Signed-off-by: Jun Lin <CHLin56@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>
NPCX WIMU CR_SIN is used to wake up soc from NPCX sleep power state.
The wake-up IRQ enabled when UART init. It causes the wake-up IRQ to
generate many extra interrupt events, which causes the system too busy
to handle other events. This PR moves the UART wake-up IRQ enabling
from UART init to npcx_power_enter_system_sleep() to avoid the
interrupt storm.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
This CL introduces six properties, clock-frequency, core-prescaler,
apb1/2/3/4-prescaler in pcc (Power and Clock Controller) node to
configure clock settings. It also removed the original Kconfig options
used for the same purpose.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Rename OSC_CLK as OFMCLK to meet npcx datasheet. The Oscillator
Frequency Multiplier Clock (OFMCLK), which is derived from
High-Frequency Clock Generator (HFCG), is the source clock of cortex-m4
core and most of NPCX hardware modules.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
To support west OpenOCD path image flashing, this generates an npcx hex
image from the npcx BIN image. Moreover, this also changes the name of
npcx output image by CONFIG_KERNEL_BIN_NAME.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
NPCX7 variants allocate code RAM either at 0x10070000 or 0x10090000.
The MPU requires addresses and region sizes to be aligned, so the
generic cortex_m/arm_mpu_regions.c results in an ineffective setup with
the addresses above.
This adds a custom mpu_regions setup for the npcx7, which covers both
available sizes, resulting in these two possible setups:
- 192kB devices
Code ram: 0x10090000 to 0x100bffff
MPU region: 0x10080000 to 0x100bffff (256k)
- 320kB devices
Code ram: 0x10070000 to 0x100bffff
MPU region 0: 0x10040000 to 0x1007ffff (256k)
MPU region 1: 0x10080000 to 0x100bffff (256k)
In both cases MPU data RAM setting is from 0x200c0000 to 0x200cffff,
matching the generic Cortex-m setup.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
This CL adds the support for npcx9m3f and npcx9m6f chips in ecst.py
script which generates the NPCX firmware header.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL replaces macros for miwu multi-registers' offset with internal
inline functions. This CL also uses soc series definitions to
distinguish the layout of miwu multi-registers between different npcx
series.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL adds the soc drivers for npcx9 series. There are two soc part
numbers, npcx9m3f and npcx9m6f, are introduced. We also move soc family
configurations from /nuvoton_npcx/npcx7/Kconfig.soc to
nuvoton_npcx/Kconfig.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
In npcx9, the number of pinmux registers (DEVALTx) is more than 16. We
need to extend the "group" member in the struct npcx_ALT to configure
the pinmux settings in npcx9.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL moves power policy source file for all npcx series to common
folder. It also abstracts the sources for checking register structures
to common/registers.c to avoid the duplicated sources in the later npcx
series.
Signed-off-by: Mulin Chao <mlchao@nuvoton.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>
NPCX series ROM code changes the chip basic setting by firmware binary
header for loading the firmware from flash to RAM. Add the following to
improve the ec firmware header setting:
- Move the ECST which generates the firmware binary header to NPCX
common folder. All the following NPCX series chips can use this.
- Add ecst setting option in Kconfig.
Signed-off-by: Yuval Peress <peress@chromium.org>
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
This CL limits the compiler to consider the eSPI/LPC host wake-up
functions, such as npcx_host_disable_access_interrupt and
npcx_host_disable_access_interrupt, only if eSPI bus module is selected.
Otherwise, we will encounter compiler errors if the communication
between host and ec is via SPI, not eSPI/LPC bus.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
NPCX clock has some limitations about the frequency range &
synchronization between core clock & other clocks. Add build assert to
check whether NPCX clock setting correct. This also fixed soc_clock.h
to consist with datasheet.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
During configuring the low-voltage power supply of IO pads, the npcx
GPIO driver needs to set the related PORTx_OUT_TYPE bit to 1, i.e.
select to 'Open Drain IO type', also. This CL provides a mechanism that
configuring these bits via 'def-lvol-io-list' node automatically in case
the flag of gpios that have been configured to low-voltage power supply
doesn't contain GPIO_OPEN_DRAIN.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
The NPCX power management code gets a compile error if CONFIG_PM is
enabled but CONFIG_ARM_MPU is disabled.
Signed-off-by: Keith Short <keithshort@google.com>
It was found that npcx7 series' GPIOs which support low-voltage power
supply, there is an excessive power consumption if they are selected to
low-voltage mode and their input voltage is 1.8V.
To avoid this excessive power consumption, this CL suspends the
connection between IO pads and hardware instances before ec enters deep
sleep mode. Then restore them after waking up.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL adds a override mechanism for pwm module's input clock source
assignment. If the 'clock-bus' property exists, the NPCX_DT_PROP_ENUM_OR
macro function will return an enum upper token value. Otherwise, it
expands to default value in 'clocks' property.
For example, if the users want to select LFCLK as pwm0's input clock,
ths node can be overridden by adding 'clock-bus' property with an enum
string, "NPCX_CLOCK_BUS_LFCLK".
&pwm0 {
status = "okay";
clock-bus = "NPCX_CLOCK_BUS_LFCLK";
};
Signed-off-by: Keith Short <keithshort@google.com>
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
NPCX host access IRQ enables before entering deep sleep. The pending
bit lets chip wake up from sleep immediately. Clear host access IRQ
pending bit before enabling.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
Fixed the name of nodes in in espi-vw, miwu-wui, and miwu-int
device-tree node. This CL fixed missing nodes in CL d3a94fa8ab.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL adds support for console expired mechanism. It implements the
notification to power management module that the module for console is
in use. If the interval that module doesn't receive any input message
exceeds CONFIG_SOC_POWER_CONSOLE_EXPIRED_TIMEOUT, the power management
module is allowed to enter deep sleep mode. This mechanism gives a
window in which the users can organize console input.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Fixed the name of nodes in device-tree files by following rules:
If object is 'phandles', use underscores for object name.
If not, such as 'node' or 'property', use hyphens for object name.
This CL also applies normal style for all nodes in npcx device-tree
files.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
The Write Protect pin of the internal SPI flash can be controlled by
WP_IF bit in DEV_CTL4 register. Add functions to set/get the status of
WP pin.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Change-Id: I8a0ce131f006f919a3b38a65722d0d312314ff0a
The compiler shows the array bounds warning message for some boards
which don't set the PSL function.
Change npcx_pinctrl_psl_input_asserted() input parameter from int to
uint32_t to fix it.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
This CL introduces the implementation of configurating PSL input pads
and setting PSL_OUT to inactive level for ultra-low power consumption.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL introduces the Power Switch Logic (PSL) pads which detect the
wake-up events and turn on/off core power supply (VCC1) for ultra-low
-power consumption in npcx device-tree file.
By adding PSL input-pad objects, psl_in1, psl_in2, and so on, into
'psl-in-pads' property and configuring their 'flag' properties, the
related driver will configure them via soc specific functions later.
For example, if PSL input 1 pad that is plan to detect a 'falling edge'
event, this property should be:
vsby-psl-in-list {
psl-in-pads = <&psl_in1>;
};
And the flag property in psl_in1 should change to
&psl_in1 {
flag = <NPCX_PSL_FALLING_EDGE>;
};
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
In NPCX chips, System Configuration module can configure not only
pinctrl but also misc. functionality such as glue and flash write
protection. This change moves the scfg driver from the pinctrl folder
to soc/arm/nuvoton_npcx/common and renames it to avoid confusion.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
This CL solves an interrupt storm caused by plenty of host access
messages when system is in S0. It only turns on the host access
interrupt before ec enters sleep and turns it off after leaving
sleep.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL prevents changing data content in the write function of host
interface by declaring it as constant pointer.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Add the declaration and check of debug interface register.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Change-Id: Ib8ecd53f1d6139613f39243aee83bdd75a30f5be
In NPCX7 series, it contains two tachometer (TACH) modules that contains
two Independent timers (counter 1 and 2). They are used to capture a
counter value when an event is detected via the external pads (TA or
TB).
The CL also includes:
— Add npcx tachometer device tree declarations.
— Zephyr sensor api implementation for tachometer.
— Enable "tach1" device in npcx7m6fb.dts for testing.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Jun Lin