The System Glue module includes the three major functions:
— Power Switch Logic (PSL)
— SMBus multi-bus, wake-up support
— Simple Debug Port (SDP)
In NPCX7 series, the SMB5 and SMB6 modules contain a two-way switch to
support two separate SMBus/I2C buses (ports) with one SMB module
(controller). Since a single SMB module is able to serve only one
SMBus/I2C bus at a time, SMB_SEL registerin Glue module is used to
control theconnection of I2Cn_0 and I2Cn_1 interface pins to the SMBn
module (where n is 5, 6).
This CL provides a soc specific pin-control function called
"soc_pinctrl_i2c_port_sel" to switch buses (port) of the same SMB module
(controller). It will be used in the following i2c driver.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
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>
Add const modifier for hal instances, clock devices pointer, and module
base address in npcx drivers to prevent driver functions change them
unexpectedly.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.
A coccinelle rule is used for this:
@r_const_dev_1
disable optional_qualifier
@
@@
-struct device *
+const struct device *
@r_const_dev_2
disable optional_qualifier
@
@@
-struct device * const
+const struct device *
Fixes#27399
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Replace npcx register base address type, uint32_t, with uintptr_t.
It is easier to know what type of base address and for linear
addresses treated as integral values.
This CL also modified IS_BIT_SET() macro function to fit MISRA code
guidelines.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
Add pin controller support for Nuvoton NPCX series
Add pin-mux controller support for Nuvoton NPCX series.
This CL includes:
1. Add pin controller device tree declarations and introduce alt-cells
to select pads' functionality.
2. Add npcx7-alts-map.dtsi since the mapping between IO and controller
is irregular and vary in each chip series.
3. Add nuvoton,npcx-pinctrl-def.yaml and its declarations to change all
pads' functionality to GPIO by default.
4. Pinmux controller driver implementation.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
Mulin Chao