Add VPL versions of commonly used Kconfig options.
Signed-off-by: Simon Glass <sjg@chromium.org>
it can be handled accurately by Valgrind. If you aren't planning on
using valgrind to debug U-Boot, say 'n'.
+config VPL_SYS_MALLOC_F_LEN
+ hex "Size of malloc() pool in VPL before relocation"
+ depends on SYS_MALLOC_F && VPL
+ default SYS_MALLOC_F_LEN
+ help
+ Before relocation, memory is very limited on many platforms. Still,
+ we can provide a small malloc() pool if needed. Driver model in
+ particular needs this to operate, so that it can allocate the
+ initial serial device and any others that are needed.
+
menuconfig EXPERT
bool "Configure standard U-Boot features (expert users)"
default y
int
default LOGLEVEL
+config VPL_LOGLEVEL
+ int "loglevel for VPL"
+ default LOGLEVEL
+ help
+ All Messages with a loglevel smaller than the console loglevel will
+ be compiled in to VPL. See LOGLEVEL for a list of available log
+ levels. Setting this to a value above 4 may increase the code size
+ significantly.
+
config SILENT_CONSOLE
bool "Support a silent console"
help
if LOG
+config VPL_LOG
+ bool "Enable logging support in VPL"
+ depends on LOG
+ help
+ This enables support for logging of status and debug messages. These
+ can be displayed on the console, recorded in a memory buffer, or
+ discarded if not needed. Logging supports various categories and
+ levels of severity.
+
config LOG_MAX_LEVEL
int "Maximum log level to record"
default 6
endif
+config VPL_LOG
+ bool "Enable logging support in VPL"
+ depends on LOG
+ help
+ This enables support for logging of status and debug messages. These
+ can be displayed on the console, recorded in a memory buffer, or
+ discarded if not needed. Logging supports various categories and
+ levels of severity.
+
+if VPL_LOG
+
+config VPL_LOG_MAX_LEVEL
+ int "Maximum log level to record in VPL"
+ default 3
+ help
+ This selects the maximum log level that will be recorded. Any value
+ higher than this will be ignored. If possible log statements below
+ this level will be discarded at build time. Levels:
+
+ 0 - emergency
+ 1 - alert
+ 2 - critical
+ 3 - error
+ 4 - warning
+ 5 - note
+ 6 - info
+ 7 - debug
+ 8 - debug content
+ 9 - debug hardware I/O
+
+config VPL_LOG_CONSOLE
+ bool "Allow log output to the console in VPL"
+ default y
+ help
+ Enables a log driver which writes log records to the console.
+ Generally the console is the serial port or LCD display. Only the
+ log message is shown - other details like level, category, file and
+ line number are omitted.
+
+endif
+
config LOG_ERROR_RETURN
bool "Log all functions which return an error"
help
This enables a bloblist in TPL. The bloblist is set up in TPL and
passed to SPL and U-Boot proper.
+config VPL_BLOBLIST
+ bool "Support for a bloblist in VPL"
+ depends on BLOBLIST && VPL_LIBGENERIC_SUPPORT && VPL_LIBCOMMON_SUPPORT
+ default y if VPL
+ help
+ This enables a bloblist in VPL. The bloblist is set up in VPL and
+ passed to SPL and U-Boot proper.
+
if BLOBLIST
choice
spl_board_init() from board_init_r(). This function should be
provided by the board.
+config VPL_BOARD_INIT
+ bool "Call board-specific initialization in VPL"
+ help
+ If this option is enabled, U-Boot will call the function
+ spl_board_init() from board_init_r(). This function should be
+ provided by the board.
+
config SPL_BOOTROM_SUPPORT
bool "Support returning to the BOOTROM"
help
endif # TPL
+config VPL
+ bool
+ depends on SUPPORT_SPL
+ prompt "Enable VPL"
+ help
+ If you want to build VPL as well as the normal image, TPL and SPL,
+ say Y.
+
+if VPL
+
+config VPL_BANNER_PRINT
+ bool "Enable output of the VPL banner 'U-Boot VPL ...'"
+ depends on VPL
+ default y
+ help
+ If this option is enabled, VPL will print the banner with version
+ info. Disabling this option could be useful to reduce VPL boot time
+ (e.g. approx. 6 ms faster, when output on i.MX6 with 115200 baud).
+
+config VPL_BOARD_INIT
+ bool "Call board-specific initialization in VPL"
+ help
+ If this option is enabled, U-Boot will call the function
+ spl_board_init() from board_init_r(). This function should be
+ provided by the board.
+
+config VPL_CACHE
+ depends on CACHE
+ bool "Support cache drivers in VPL"
+ help
+ Enable support for cache drivers in VPL.
+
+config VPL_CRC32
+ bool "Support CRC32 in VPL"
+ default y if VPL_ENV_SUPPORT || VPL_BLOBLIST
+ help
+ Enable this to support CRC32 in uImages or FIT images within VPL.
+ This is a 32-bit checksum value that can be used to verify images.
+ For FIT images, this is the least secure type of checksum, suitable
+ for detected accidental image corruption. For secure applications you
+ should consider SHA1 or SHA256.
+
+config VPL_DM_SPI
+ bool "Support SPI DM drivers in VPL"
+ help
+ Enable support for SPI DM drivers in VPL.
+
+config VPL_DM_SPI_FLASH
+ bool "Support SPI DM FLASH drivers in VPL"
+ help
+ Enable support for SPI DM flash drivers in VPL.
+
+config VPL_FRAMEWORK
+ bool "Support VPL based upon the common SPL framework"
+ default y
+ help
+ Enable the SPL framework under common/spl/ for VPL builds.
+ This framework supports MMC, NAND and YMODEM and other methods
+ loading of U-Boot's next stage. If unsure, say Y.
+
+config VPL_HANDOFF
+ bool "Pass hand-off information from VPL to SPL"
+ depends on HANDOFF && VPL_BLOBLIST
+ default y
+ help
+ This option enables VPL to write handoff information. This can be
+ used to pass information like the size of SDRAM from VPL to SPL. Also
+ VPL can receive information from TPL in the same place if that is
+ enabled.
+
+config VPL_LIBCOMMON_SUPPORT
+ bool "Support common libraries"
+ default y if SPL_LIBCOMMON_SUPPORT
+ help
+ Enable support for common U-Boot libraries within VPL. See
+ SPL_LIBCOMMON_SUPPORT for details.
+
+config VPL_LIBGENERIC_SUPPORT
+ bool "Support generic libraries"
+ default y if SPL_LIBGENERIC_SUPPORT
+ help
+ Enable support for generic U-Boot libraries within VPL. These
+ libraries include generic code to deal with device tree, hashing,
+ printf(), compression and the like. This option is enabled on many
+ boards. Enable this option to build the code in lib/ as part of a
+ VPL build.
+
+config VPL_DRIVERS_MISC
+ bool "Support misc drivers"
+ default y if TPL_DRIVERS_MISC
+ help
+ Enable miscellaneous drivers in VPL. These drivers perform various
+ tasks that don't fall nicely into other categories, Enable this
+ option to build the drivers in drivers/misc as part of a VPL
+ build, for those that support building in VPL (not all drivers do).
+
+config VPL_ENV_SUPPORT
+ bool "Support an environment"
+ help
+ Enable environment support in VPL. The U-Boot environment provides
+ a number of settings (essentially name/value pairs) which can
+ control many aspects of U-Boot's operation. Enabling this option will
+ make env_get() and env_set() available in VSPL.
+
+config VPL_GPIO
+ bool "Support GPIO in VPL"
+ default y if SPL_GPIO
+ help
+ Enable support for GPIOs (General-purpose Input/Output) in VPL.
+ GPIOs allow U-Boot to read the state of an input line (high or
+ low) and set the state of an output line. This can be used to
+ drive LEDs, control power to various system parts and read user
+ input. GPIOs can be useful in VPL to enable a 'sign-of-life' LED,
+ for example. Enable this option to build the drivers in
+ drivers/gpio as part of a VPL build.
+
+config VPL_HANDOFF
+ bool "Pass hand-off information from VPL to SPL and U-Boot proper"
+ depends on HANDOFF && VPL_BLOBLIST
+ default y
+ help
+ This option enables VPL to write handoff information. This can be
+ used to pass information like the size of SDRAM from VPL to U-Boot
+ proper. The information is also available to VPL if it is useful
+ there.
+
+config VPL_HASH
+ bool "Support hashing drivers in VPL"
+ depends on VPL
+ select SHA1
+ select SHA256
+ help
+ Enable hashing drivers in VPL. These drivers can be used to
+ accelerate secure boot processing in secure applications. Enable
+ this option to build system-specific drivers for hash acceleration
+ as part of a VPL build.
+
+config VPL_I2C_SUPPORT
+ bool "Support I2C in VPL"
+ default y if SPL_I2C_SUPPORT
+ help
+ Enable support for the I2C bus in VPL. Vee SPL_I2C_SUPPORT for
+ details.
+
+config VPL_PCH_SUPPORT
+ bool "Support PCH drivers"
+ default y if TPL_PCH_SUPPORT
+ help
+ Enable support for PCH (Platform Controller Hub) devices in VPL.
+ These are used to set up GPIOs and the SPI peripheral early in
+ boot. This enables the drivers in drivers/pch as part of a VPL
+ build.
+
+config VPL_PCI
+ bool "Support PCI drivers"
+ default y if SPL_PCI
+ help
+ Enable support for PCI in VPL. For platforms that need PCI to boot,
+ or must perform some init using PCI in VPL, this provides the
+ necessary driver support. This enables the drivers in drivers/pci
+ as part of a VPL build.
+
+config VPL_RTC
+ bool "Support RTC drivers"
+ help
+ Enable RTC (Real-time Clock) support in VPL. This includes support
+ for reading and setting the time. Some RTC devices also have some
+ non-volatile (battery-backed) memory which is accessible if
+ needed. This enables the drivers in drivers/rtc as part of a VPL
+ build.
+
+config VPL_SERIAL
+ bool "Support serial"
+ default y if TPL_SERIAL
+ select VPL_PRINTF
+ select VPL_STRTO
+ help
+ Enable support for serial in VPL. See SPL_SERIAL_SUPPORT for
+ details.
+
+config VPL_SIZE_LIMIT
+ hex "Maximum size of VPL image"
+ depends on VPL
+ default 0x0
+ help
+ Specifies the maximum length of the U-Boot VPL image.
+ If this value is zero, it is ignored.
+
+config VPL_SPI
+ bool "Support SPI drivers"
+ help
+ Enable support for using SPI in VPL. See SPL_SPI_SUPPORT for
+ details.
+
+config VPL_SPI_FLASH_SUPPORT
+ bool "Support SPI flash drivers"
+ help
+ Enable support for using SPI flash in VPL, and loading U-Boot from
+ SPI flash. SPI flash (Serial Peripheral Bus flash) is named after
+ the SPI bus that is used to connect it to a system. It is a simple
+ but fast bidirectional 4-wire bus (clock, chip select and two data
+ lines). This enables the drivers in drivers/mtd/spi as part of a
+ VPL build. This normally requires VPL_SPI_SUPPORT.
+
+config VPL_TEXT_BASE
+ hex "VPL Text Base"
+ default 0x0
+ help
+ The address in memory that VPL will be running from.
+
+endif # VPL
+
config SPL_AT91_MCK_BYPASS
bool "Use external clock signal as a source of main clock for AT91 platforms"
depends on ARCH_AT91
be partitioned into several areas, called 'partitions' in U-Boot.
A filesystem can be placed in each partition.
+config VPL_BLK
+ bool "Support block devices in VPL"
+ depends on VPL_DM && BLK
+ default y
+ help
+ Enable support for block devices, such as SCSI, MMC and USB
+ flash sticks. These provide a block-level interface which permits
+ reading, writing and (in some cases) erasing blocks. Block
+ devices often have a partition table which allows the device to
+ be partitioned into several areas, called 'partitions' in U-Boot.
+ A filesystem can be placed in each partition.
+
config BLOCK_CACHE
bool "Use block device cache"
depends on BLK
setting up clocks within TPL, and allows the same drivers to be
used as U-Boot proper.
+config VPL_CLK
+ bool "Enable clock support in VPL"
+ depends on CLK && VPL_DM
+ help
+ The clock subsystem adds a small amount of overhead to the image.
+ If this is acceptable and you have a need to use clock drivers in
+ SPL, enable this option. It might provide a cleaner interface to
+ setting up clocks within TPL, and allows the same drivers to be
+ used as U-Boot proper.
+
+config CLK_BCM6345
+ bool "Clock controller driver for BCM6345"
+ depends on CLK && ARCH_BMIPS
+ default y
+ help
+ This clock driver adds support for enabling and disabling peripheral
+ clocks on BCM6345 SoCs. HW has no rate changing capabilities.
+
+config CLK_BOSTON
+ def_bool y if TARGET_BOSTON
+ depends on CLK
+ select REGMAP
+ select SYSCON
+ help
+ Enable this to support the clocks
+
config SPL_CLK_CCF
bool "SPL Common Clock Framework [CCF] support "
depends on SPL
CONFIG_SPL_SYS_MALLOC_F_LEN for more details on how to enable it.
Disable this for very small implementations.
+config VPL_DM
+ bool "Enable Driver Model for VPL"
+ depends on DM && VPL
+ default y if SPL_DM
+ help
+ Enable driver model in VPL. You will need to provide a
+ suitable malloc() implementation. If you are not using the
+ full malloc() enabled by CONFIG_SYS_SPL_MALLOC_START,
+ consider using CONFIG_SYS_MALLOC_SIMPLE.
+
config DM_WARN
bool "Enable warnings in driver model"
depends on DM
numbered devices (e.g. serial0 = &serial0). This feature can be
disabled if it is not required, to save code space in SPL.
+config VPL_DM_SEQ_ALIAS
+ bool "Support numbered aliases in device tree in VPL"
+ depends on VPL_DM
+ default y
+ help
+ Most boards will have a '/aliases' node containing the path to
+ numbered devices (e.g. serial0 = &serial0). This feature can be
+ disabled if it is not required, to save code space in VPL.
+
config SPL_DM_INLINE_OFNODE
bool "Inline some ofnode functions which are seldom used in SPL"
depends on SPL_DM
support any bus type (I2C, SPI) but so far this only supports
direct memory access.
+config VPL_REGMAP
+ bool "Support register maps in VPL"
+ depends on VPL_DM
+ help
+ Hardware peripherals tend to have one or more sets of registers
+ which can be accessed to control the hardware. A register map
+ models this with a simple read/write interface. It can in principle
+ support any bus type (I2C, SPI) but so far this only supports
+ direct memory access.
+
config SYSCON
bool "Support system controllers"
depends on REGMAP
config TPL_SYSCON
bool "Support system controllers in TPL"
- depends on TPL_REGMAP
+ depends on SPL_REGMAP
+ help
+ Many SoCs have a number of system controllers which are dealt with
+ as a group by a single driver. Some common functionality is provided
+ by this uclass, including accessing registers via regmap and
+ assigning a unique number to each.
+
+config VPL_SYSCON
+ bool "Support system controllers in VPL"
+ depends on VPL_REGMAP
help
Many SoCs have a number of system controllers which are dealt with
as a group by a single driver. Some common functionality is provided
used for the address translation. This function is faster and
smaller in size than fdt_translate_address().
+config VPL_OF_TRANSLATE
+ bool "Translate addresses using fdt_translate_address in SPL"
+ depends on SPL_DM && VPL_OF_CONTROL
+ help
+ If this option is enabled, the reg property will be translated
+ using the fdt_translate_address() function. This is necessary
+ on some platforms (e.g. MVEBU) using complex "ranges"
+ properties in many nodes. As this translation is not handled
+ correctly in the default simple_bus_translate() function.
+
+ If this option is not enabled, simple_bus_translate() will be
+ used for the address translation. This function is faster and
+ smaller in size than fdt_translate_address().
+
config TRANSLATION_OFFSET
bool "Platforms specific translation offset"
depends on DM && OF_CONTROL
obj-y += device.o fdtaddr.o lists.o root.o uclass.o util.o tag.o
obj-$(CONFIG_$(SPL_TPL_)ACPIGEN) += acpi.o
obj-$(CONFIG_$(SPL_TPL_)DEVRES) += devres.o
-obj-$(CONFIG_$(SPL_)DM_DEVICE_REMOVE) += device-remove.o
+obj-$(CONFIG_$(SPL_TPL_)DM_DEVICE_REMOVE) += device-remove.o
obj-$(CONFIG_$(SPL_)SIMPLE_BUS) += simple-bus.o
obj-$(CONFIG_SIMPLE_PM_BUS) += simple-pm-bus.o
obj-$(CONFIG_DM) += dump.o
particular GPIOs that they provide. The uclass interface
is defined in include/asm-generic/gpio.h.
+config VPL_DM_GPIO
+ bool "Enable Driver Model for GPIO drivers in VPL"
+ depends on DM_GPIO && VPL_DM && VPL_GPIO
+ default y
+ help
+ Enable driver model for GPIO access in VPL. The standard GPIO
+ interface (gpio_get_value(), etc.) is then implemented by
+ the GPIO uclass. Drivers provide methods to query the
+ particular GPIOs that they provide. The uclass interface
+ is defined in include/asm-generic/gpio.h.
+
config GPIO_HOG
bool "Enable GPIO hog support"
depends on DM_GPIO
device (bus child) info is kept as parent platdata. The interface
is defined in include/i2c.h.
+config VPL_DM_I2C
+ bool "Enable Driver Model for I2C drivers in VPL"
+ depends on VPL_DM && DM_I2C
+ default y
+ help
+ Enable driver model for I2C. The I2C uclass interface: probe, read,
+ write and speed, is implemented with the bus drivers operations,
+ which provide methods for bus setting and data transfer. Each chip
+ device (bus child) info is kept as parent platdata. The interface
+ is defined in include/i2c.h.
+
config SYS_I2C_LEGACY
bool "Enable legacy I2C subsystem and drivers"
depends on !DM_I2C
control access to the battery and main PMIC depending on the
device. You can use the 'crosec' command to access it.
+config VPL_CROS_EC
+ bool "Enable Chrome OS EC in VPL"
+ depends on VPL
+ help
+ Enable access to the Chrome OS EC in VPL. This is a separate
+ microcontroller typically available on a SPI bus on Chromebooks. It
+ provides access to the keyboard, some internal storage and may
+ control access to the battery and main PMIC depending on the
+ device. You can use the 'crosec' command to access it.
+
config CROS_EC_I2C
bool "Enable Chrome OS EC I2C driver"
depends on CROS_EC
through a legacy port interface, so on x86 machines the main
function of the EC is power and thermal management.
+config VPL_CROS_EC_LPC
+ bool "Enable Chrome OS EC LPC driver in VPL"
+ depends on CROS_EC
+ help
+ Enable I2C access to the Chrome OS EC. This is used on x86
+ Chromebooks such as link and falco. The keyboard is provided
+ through a legacy port interface, so on x86 machines the main
+ function of the EC is power and thermal management.
+
config CROS_EC_SANDBOX
bool "Enable Chrome OS EC sandbox driver"
depends on CROS_EC && SANDBOX
EC flash read/write/erase support and a few other things. It is
enough to perform a Chrome OS verified boot on sandbox.
+config VPL_CROS_EC_SANDBOX
+ bool "Enable Chrome OS EC sandbox driver in VPL"
+ depends on VPL_CROS_EC && SANDBOX
+ help
+ Enable a sandbox emulation of the Chrome OS EC in VPL. This supports
+ keyboard (use the -l flag to enable the LCD), verified boot context,
+ EC flash read/write/erase support and a few other things. It is
+ enough to perform a Chrome OS verified boot on sandbox.
+
config CROS_EC_SPI
bool "Enable Chrome OS EC SPI driver"
depends on CROS_EC
This option is an TPL variant of the PINCTRL option.
See the help of PINCTRL for details.
+config VPL_PINCTRL
+ bool "Support pin controllers in VPL"
+ depends on VPL && VPL_DM
+ help
+ This option is an VPL variant of the PINCTRL option.
+ See the help of PINCTRL for details.
+
config SPL_PINCTRL_FULL
bool "Support full pin controllers in SPL"
depends on SPL_PINCTRL && SPL_OF_CONTROL
default n if TARGET_STM32F746_DISCO
default y
help
- This option is an SPL-variant of the PINCTRL_FULL option.
+ This option is an SPL variant of the PINCTRL_FULL option.
See the help of PINCTRL_FULL for details.
config TPL_PINCTRL_FULL
bool "Support full pin controllers in TPL"
depends on TPL_PINCTRL && TPL_OF_CONTROL
help
- This option is an TPL-variant of the PINCTRL_FULL option.
+ This option is a TPL variant of the PINCTRL_FULL option.
+ See the help of PINCTRL_FULL for details.
+
+config VPL_PINCTRL_FULL
+ bool "Support full pin controllers in VPL"
+ depends on VPL_PINCTRL && VPL_OF_CONTROL
+ help
+ This option is a VPL variant of the PINCTRL_FULL option.
See the help of PINCTRL_FULL for details.
config SPL_PINCTRL_GENERIC
drivers to perform the actual functions. See rtc.h for a
description of the API.
+config VPL_DM_RTC
+ bool "Enable Driver Model for RTC drivers in VPL"
+ depends on VPL_DM
+ help
+ Enable drver model for real-time-clock drivers. The RTC uclass
+ then provides the rtc_get()/rtc_set() interface, delegating to
+ drivers to perform the actual functions. See rtc.h for a
+ description of the API.
+
config RTC_ENABLE_32KHZ_OUTPUT
bool "Enable RTC 32Khz output"
help
This option enables the full UART in TPL, so if is it disabled,
the full UART driver will be omitted, thus saving space.
+config VPL_SERIAL_PRESENT
+ bool "Provide a serial driver in VPL"
+ depends on DM_SERIAL && VPL
+ default y
+ help
+ In very space-constrained devices even the full UART driver is too
+ large. In this case the debug UART can still be used in some cases.
+ This option enables the full UART in TPL, so if is it disabled,
+ the full UART driver will be omitted, thus saving space.
+
# Logic to allow us to use the imply keyword to set what the default port
# should be. The default is otherwise 1.
config CONS_INDEX_0
implements serial_putc() etc. The uclass interface is
defined in include/serial.h.
+config VPL_DM_SERIAL
+ bool "Enable Driver Model for serial drivers in VPL"
+ depends on DM_SERIAL
+ default y if VPL && DM_SERIAL
+ help
+ Enable driver model for serial in VPL. This replaces
+ drivers/serial/serial.c with the serial uclass, which
+ implements serial_putc() etc. The uclass interface is
+ defined in include/serial.h.
+
config DEBUG_UART
bool "Enable an early debug UART for debugging"
help
to effect a reset. The uclass will try all available drivers when
reset_walk() is called.
+config VPL_SYSRESET
+ bool "Enable support for system reset drivers in VPL mode"
+ depends on SYSRESET && VPL_DM
+ default y if TPL_SYSRESET
+ help
+ Enable system reset drivers which can be used to reset the CPU or
+ board. Each driver can provide a reset method which will be called
+ to effect a reset. The uclass will try all available drivers when
+ reset_walk() is called.
+
if SYSRESET
config SYSRESET_CMD_RESET
function. This enables the drivers in drivers/timer as part of an
TPL build.
+config VPL_TIMER
+ bool "Enable driver model for timer drivers in VPL"
+ depends on TIMER && VPL
+ default y if TPL_TIMER
+ help
+ Enable support for timer drivers in VPL. These can be used to get
+ a timer value when in VPL, or perhaps for implementing a delay
+ function. This enables the drivers in drivers/timer as part of an
+ TPL build.
+
config TIMER_EARLY
bool "Allow timer to be used early in U-Boot"
depends on TIMER
trust for a device, It operates like a TPM and can be used with
verified boot. Cr50 is used on recent Chromebooks (since 2017).
+config SPL_TPM2_CR50_I2C
+ bool "Enable support for Google cr50 TPM"
+ depends on DM_I2C && SPL_TPM
+ help
+ Cr50 is an implementation of a TPM on Google's H1 security chip.
+ This uses the same open-source firmware as the Chromium OS EC.
+ While Cr50 has other features, its primary role is as the root of
+ trust for a device, It operates like a TPM and can be used with
+ verified boot. Cr50 is used on recent Chromebooks (since 2017).
+
+config TPL_TPM2_CR50_I2C
+ bool "Enable support for Google cr50 TPM"
+ depends on DM_I2C && TPL_TPM
+ help
+ Cr50 is an implementation of a TPM on Google's H1 security chip.
+ This uses the same open-source firmware as the Chromium OS EC.
+ While Cr50 has other features, its primary role is as the root of
+ trust for a device, It operates like a TPM and can be used with
+ verified boot. Cr50 is used on recent Chromebooks (since 2017).
+
+config VPL_TPM2_CR50_I2C
+ bool "Enable support for Google cr50 TPM"
+ depends on DM_I2C && VPL_TPM
+ help
+ Cr50 is an implementation of a TPM on Google's H1 security chip.
+ This uses the same open-source firmware as the Chromium OS EC.
+ While Cr50 has other features, its primary role is as the root of
+ trust for a device, It operates like a TPM and can be used with
+ verified boot. Cr50 is used on recent Chromebooks (since 2017).
+
config TPM2_TIS_SANDBOX
bool "Enable sandbox TPMv2.x driver"
depends on TPM_V2 && SANDBOX
which is not enough to support device tree. Enable this option to
allow such boards to be supported by U-Boot TPL.
+config VPL_OF_CONTROL
+ bool "Enable run-time configuration via Device Tree in VPL"
+ depends on VPL && OF_CONTROL
+ default y if SPL_OF_CONTROL
+ help
+ Some boards use device tree in U-Boot but only have 4KB of SRAM
+ which is not enough to support device tree. Enable this option to
+ allow such boards to be supported by U-Boot VPL.
+
config OF_LIVE
bool "Enable use of a live tree"
depends on DM && OF_CONTROL
endif
+config VPL_OF_REAL
+ def_bool y
+ help
+ Indicates that a real devicetree is available which can be accessed
+ at runtime. This means that dev_read_...() functions can be used to
+ read data from the devicetree for each device. This is true if
+ TPL_OF_CONTROL is enabled and not TPL_OF_PLATDATA
+
endmenu
select TPL_SPRINTF
select TPL_STRTO if !TPL_USE_TINY_PRINTF
+config VPL_PRINTF
+ bool
+ select VPL_SPRINTF
+ select VPL_STRTO if !VPL_USE_TINY_PRINTF
+
config SPRINTF
bool
default y
config TPL_SPRINTF
bool
+config VPL_SPRINTF
+ bool
+
config SSCANF
bool
config TPL_STRTO
bool
+config VPL_STRTO
+ bool
+
config IMAGE_SPARSE
bool
The supported format specifiers are %c, %s, %u/%d and %x.
+config VPL_USE_TINY_PRINTF
+ bool "Enable tiny printf() version for VPL"
+ depends on VPL
+ help
+ This option enables a tiny, stripped down printf version.
+ This should only be used in space limited environments,
+ like SPL versions with hard memory limits. This version
+ reduces the code size by about 2.5KiB on armv7.
+
+ The supported format specifiers are %c, %s, %u/%d and %x.
+
config PANIC_HANG
bool "Do not reset the system on fatal error"
help
for the low-level TPM interface, but only one TPM is supported at
a time by the TPM library.
+config VPL_TPM
+ bool "Trusted Platform Module (TPM) Support in VPL"
+ depends on VPL_DM
+ help
+ This enables support for TPMs which can be used to provide security
+ features for your board. The TPM can be connected via LPC or I2C
+ and a sandbox TPM is provided for testing purposes. Use the 'tpm'
+ command to interactive the TPM. Driver model support is provided
+ for the low-level TPM interface, but only one TPM is supported at
+ a time by the TPM library.
+
endmenu
menu "Android Verified Boot"
help
This enables support for LZMA compression algorithm for SPL boot.
+config VPL_LZMA
+ bool "Enable LZMA decompression support for VPL build"
+ default y if LZMA
+ help
+ This enables support for LZMA compression algorithm for VPL boot.
+
config SPL_LZO
bool "Enable LZO decompression support in SPL"
help
config SPL_OF_LIBFDT
bool "Enable the FDT library for SPL"
+ depends on SPL_LIBGENERIC_SUPPORT
default y if SPL_OF_CONTROL
help
This enables the FDT library (libfdt). It provides functions for
config TPL_OF_LIBFDT
bool "Enable the FDT library for TPL"
+ depends on TPL_LIBGENERIC_SUPPORT
default y if TPL_OF_CONTROL
help
This enables the FDT library (libfdt). It provides functions for
0xff means all assumptions are made and any invalid data may cause
unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
+config VPL_OF_LIBFDT
+ bool "Enable the FDT library for VPL"
+ default y if VPL_OF_CONTROL && !VPL_OF_PLATDATA
+ help
+ This enables the FDT library (libfdt). It provides functions for
+ accessing binary device tree images in memory, such as adding and
+ removing nodes and properties, scanning through the tree and finding
+ particular compatible nodes. The library operates on a flattened
+ version of the device tree.
+
+config VPL_OF_LIBFDT_ASSUME_MASK
+ hex "Mask of conditions to assume for libfdt"
+ depends on VPL_OF_LIBFDT || FIT
+ default 0xff
+ help
+ Use this to change the assumptions made by libfdt in SPL about the
+ device tree it is working with. A value of 0 means that no assumptions
+ are made, and libfdt is able to deal with malicious data. A value of
+ 0xff means all assumptions are made and any invalid data may cause
+ unsafe execution. See FDT_ASSUME_PERFECT, etc. in libfdt_internal.h
+
config FDT_FIXUP_PARTITIONS
bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
depends on OF_LIBFDT
projects / u-boot.git / commitdiff