The driver will use a syscon regmap as backend and supports both
16 and 32 size value. The value will be stored in the CPU's endianness.
Signed-off-by: Nandor Han <nandor.han@vaisala.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
RTC second scratch register[32-bit]:
-zero byte hold boot count value
-first byte hold update available state
-second byte hold version
-third byte hold magic number
Signed-off-by: Gireesh Hiremath <Gireesh.Hiremath@in.bosch.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210611161350.2141-17-Gireesh.Hiremath@in.bosch.com
Gbp-Pq: Topic apertis/guardian
Gbp-Pq: Name am335x-guardian-software-update-available-status-is-store.patch
This driver allows to use SPI flash as backing store for
boot counter values with DM enabled.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This config option depends on EXT4 support.
If Ext4 write capability is not selected, it generate write error messages
and is unable to maintain boot counter.
Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>
add DM/DTS support for the memory based bootcounter
in drivers/bootcount/bootcount.c.
Let the old implementation in, so boards which have
not yet convert to DM/DTS do not break.
Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This driver allows the use of i2c eeprom device or partition as backing
store for boot counter values with DM enabled.
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
This implements a driver using a RTC-based backing store for the DM
bootcount implementation. The node configuring this feature will be
compatible with 'u-boot,bootcount-rtc' and the underlying RTC device
shall be reference through the property 'rtc'. An offset into the RTC
device's register space can be provided through the 'offset' property.
Tested on a RK3399-Q7 on a Flamingo carrier board using the SRAM area
of the carrier board's RV3029 RTC.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
The original bootcount methods do not provide an interface to DM and
rely on a static configuration for I2C devices (e.g. bus, chip-addr,
etc. are configured through defines statically). On a modern system
that exposes multiple devices in a DTS-configurable way, this is less
than optimal and a interface to DM-based devices will be desirable.
This adds a simple driver that is DM-aware and configurable via DTS.
If ambiguous (i.e. multiple bootcount-devices are present) the
/chosen/u-boot,bootcount-device property can be used to select one
bootcount device.
Initially, this provides support for the following DM devices:
* RTC devices
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Add new Kconfig option, SYS_BOOTCOUNT_MAGIC, to select the boot
counter magic word. This can be useful ie. in case the entire
boot counter register is not usable.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Migrate the users of CONFIG_SYS_BOOTCOUNT_ADDR to Kconfig. We can
provide a default for BOOTCOUNT_AM33XX as that's a specific part of the
RTC in use. We can also provide a default for ARCH_LS1043A and
ARCH_LS1021A as they had been previously calculated and their symbols
are in Kconfig. In the case of other QE-enabled platforms, they are not
so we must update the relevant defconfig files. The previous default
only applied in some cases, even on a specific SoC family.
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Alex Kiernan <alex.kiernan@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Make generate boot counter selected in the same way as other boot count
drivers
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
This converts the following to Kconfig:
CONFIG_BOOTCOUNT_I2C
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
This converts the following to Kconfig:
CONFIG_BOOTCOUNT_RAM
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
This converts the following to Kconfig:
CONFIG_BOOTCOUNT_ENV
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
This converts the following to Kconfig:
CONFIG_BOOTCOUNT_AM33XX
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Acked-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
CONFIG_BOOTCOUNT was only used in mx53ppd, merge it with
CONFIG_BOOTCOUNT_LIMIT
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Ian Ray <ian.ray@ge.com>
This converts the following to Kconfig:
CONFIG_SYS_BOOTCOUNT_SINGLEWORD
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Tested-by: Alex Kiernan <alex.kiernan@gmail.com>
Reviewed-by: Ian Ray <ian.ray@ge.com>
This converts the following to Kconfig:
CONFIG_BOOTCOUNT_LIMIT
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Tested-by: Alex Kiernan <alex.kiernan@gmail.com>
Reviewed-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Acked-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Add support for bootcounter on an EXT filesystem.
Sync configuration whitelist.
Signed-off-by: Ian Ray <ian.ray@ge.com>
Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
