Move the command execution functions from the turris-omnia-mcu platform
driver private header to the global turris-omnia-mcu-interface.h header,
so that they can be used by the LED driver.
Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20241111100355.6978-2-kabel@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Add more comprehensive documentation for the driver private data
structure, `struct omnia_mcu`.
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.
auto-generated by the following:
for i in `git grep -l -w asm/unaligned.h`; do
sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
Make the GPIO part of the driver optional, under a boolean config
option. Move the dependency to GPIOLIB and OF and the selection of
GPIOLIB_IRQCHIP to this new option.
This makes the turris-omnia-mcu driver available for compilation even if
GPIOLIB or OF are disabled.
Fixes: ed46f1f773 ("platform: cznic: turris-omnia-mcu: fix Kconfig dependencies")
Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20240719085756.30598-5-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Make the system poweroff and RTC wakeup part of the driver optional,
under a boolean config option. Move the dependency to RTC_CLASS to this
new option.
This makes the turris-omnia-mcu driver available for compilation even if
RTC_CLASS is disabled.
Fixes: ed46f1f773 ("platform: cznic: turris-omnia-mcu: fix Kconfig dependencies")
Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20240719085756.30598-4-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Make the TRNG part of the driver optional, under a boolean config
option.
This makes the driver turris-omnia-mcu available for compilation even if
HW_RANDOM is disabled.
Fixes: ed46f1f773 ("platform: cznic: turris-omnia-mcu: fix Kconfig dependencies")
Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20240719085756.30598-3-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Make the watchdog part of the driver optional, under a boolean config
option. Move the dependency to WATCHDOG to this new option, and change
the WATCHDOG_CORE dependency to selection, as is done in most watchdog
drivers.
This makes the turris-omnia-mcu driver available for compilation even if
WATCHDOG is disabled.
Fixes: ed46f1f773 ("platform: cznic: turris-omnia-mcu: fix Kconfig dependencies")
Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20240719085756.30598-2-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add support for true random number generator provided by the MCU.
New Omnia boards come without the Atmel SHA204-A chip. Instead the
crypto functionality is provided by new microcontroller, which has
a TRNG peripheral.
Signed-off-by: Marek Behún <kabel@kernel.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20240701113010.16447-7-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add support for the watchdog mechanism provided by the MCU.
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20240701113010.16447-6-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add support for true board poweroff (MCU can disable all unnecessary
voltage regulators) and wakeup at a specified time, implemented via a
RTC driver so that the rtcwake utility can be used to configure it.
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20240701113010.16447-5-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add support for GPIOs connected to the MCU on the Turris Omnia board.
This includes:
- front button pin
- enable pins for USB regulators
- MiniPCIe / mSATA card presence pins in MiniPCIe port 0
- LED output pins from WAN ethernet PHY, LAN switch and MiniPCIe ports
- on board revisions 32+ also various peripheral resets and another
voltage regulator enable pin
Signed-off-by: Marek Behún <kabel@kernel.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20240701113010.16447-4-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add the basic skeleton for a new platform driver for the microcontroller
found on the Turris Omnia board.
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20240701113010.16447-3-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Marek Behún
Al Viro