mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 13:56:30 +00:00
323 lines
10 KiB
Smarty
323 lines
10 KiB
Smarty
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menu "TPL configuration options"
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depends on TPL
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config TPL_SIZE_LIMIT
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hex "Maximum size of TPL image"
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default 0x0
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help
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Specifies the maximum length of the U-Boot TPL image.
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If this value is zero, it is ignored.
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config TPL_BINMAN_SYMBOLS
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bool "Declare binman symbols in TPL"
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depends on SPL_FRAMEWORK && BINMAN
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default y
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help
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This enables use of symbols in TPL which refer to U-Boot, enabling TPL
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to obtain the location of U-Boot simply by calling spl_get_image_pos()
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and spl_get_image_size().
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For this to work, you must have a U-Boot image in the binman image, so
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binman can update TPL with the location of it.
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config TPL_FRAMEWORK
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bool "Support TPL based upon the common SPL framework"
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default y if SPL_FRAMEWORK
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help
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Enable the SPL framework under common/spl/ for TPL builds.
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This framework supports MMC, NAND and YMODEM and other methods
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loading of U-Boot's SPL stage. If unsure, say Y.
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config TPL_BANNER_PRINT
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bool "Enable output of the TPL banner 'U-Boot TPL ...'"
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default y
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help
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If this option is enabled, TPL will print the banner with version
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info. Disabling this option could be useful to reduce TPL boot time
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(e.g. approx. 6 ms faster, when output on i.MX6 with 115200 baud).
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config TPL_HANDOFF
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bool "Pass hand-off information from TPL to SPL and U-Boot proper"
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depends on HANDOFF && TPL_BLOBLIST
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default y
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help
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This option enables TPL to write handoff information. This can be
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used to pass information like the size of SDRAM from TPL to U-Boot
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proper. The information is also available to SPL if it is useful
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there.
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config TPL_BOARD_INIT
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bool "Call board-specific initialization in TPL"
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help
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If this option is enabled, U-Boot will call the function
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spl_board_init() from board_init_r(). This function should be
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provided by the board.
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config TPL_BOOTCOUNT_LIMIT
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bool "Support bootcount in TPL"
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depends on TPL_ENV_SUPPORT
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help
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If this option is enabled, the TPL will support bootcount.
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For example, it may be useful to choose the device to boot.
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config TPL_SYS_MALLOC_SIMPLE
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bool
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prompt "Only use malloc_simple functions in the TPL"
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help
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Say Y here to only use the *_simple malloc functions from
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malloc_simple.c, rather then using the versions from dlmalloc.c;
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this will make the TPL binary smaller at the cost of more heap
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usage as the *_simple malloc functions do not re-use free-ed mem.
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config TPL_SEPARATE_BSS
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bool "BSS section is in a different memory region from text"
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default y if SPL_SEPARATE_BSS
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help
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Some platforms need a large BSS region in TPL and can provide this
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because RAM is already set up. In this case BSS can be moved to RAM.
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This option should then be enabled so that the correct device tree
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location is used. Normally we put the device tree at the end of BSS
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but with this option enabled, it goes at _image_binary_end.
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config TPL_LDSCRIPT
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string "Linker script for the TPL stage"
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default "arch/arm/cpu/armv8/u-boot-spl.lds" if ARM64
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default "arch/\$(ARCH)/cpu/u-boot-spl.lds"
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help
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The TPL stage will usually require a different linker-script
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(as it runs from a different memory region) than the regular
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U-Boot stage. Set this to the path of the linker-script to
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be used for TPL.
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May be left empty to trigger the Makefile infrastructure to
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fall back to the linker-script used for the SPL stage.
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config TPL_NEEDS_SEPARATE_STACK
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bool "TPL needs a separate initial stack-pointer"
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help
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Enable, if the TPL stage should not inherit its initial
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stack-pointer from the settings for the SPL stage.
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config TPL_POWER
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bool "Support power drivers"
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help
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Enable support for power control in TPL. This includes support
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for PMICs (Power-management Integrated Circuits) and some of the
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features provided by PMICs. In particular, voltage regulators can
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be used to enable/disable power and vary its voltage. That can be
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useful in TPL to turn on boot peripherals and adjust CPU voltage
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so that the clock speed can be increased. This enables the drivers
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in drivers/power, drivers/power/pmic and drivers/power/regulator
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as part of an TPL build.
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config TPL_TEXT_BASE
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hex "Base address for the .text section of the TPL stage"
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default 0
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help
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The base address for the .text section of the TPL stage.
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config TPL_MAX_SIZE
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hex "Maximum size (in bytes) for the TPL stage"
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default 0x2e000 if ROCKCHIP_RK3399
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default 0x8000 if ROCKCHIP_RK3288
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default 0x7000 if ROCKCHIP_RK322X || ROCKCHIP_RK3328 || ROCKCHIP_RK3368
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default 0x2800 if ROCKCHIP_PX30
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default 0x0
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help
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The maximum size (in bytes) of the TPL stage.
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config TPL_STACK
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hex "Address of the initial stack-pointer for the TPL stage"
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depends on TPL_NEEDS_SEPARATE_STACK
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help
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The address of the initial stack-pointer for the TPL stage.
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Usually this will be the (aligned) top-of-stack.
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config TPL_READ_ONLY
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bool
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depends on TPL_OF_PLATDATA
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select TPL_OF_PLATDATA_NO_BIND
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select TPL_OF_PLATDATA_RT
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help
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Some platforms (e.g. x86 Apollo Lake) load SPL into a read-only
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section of memory. This means that of-platdata must make a copy (in
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writeable memory) of anything it wants to modify, such as
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device-private data.
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config TPL_BOOTROM_SUPPORT
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bool "Support returning to the BOOTROM (from TPL)"
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help
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Some platforms (e.g. the Rockchip RK3368) provide support in their
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ROM for loading the next boot-stage after performing basic setup
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from the TPL stage.
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Enable this option, to return to the BOOTROM through the
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BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the
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boot device list, if not implemented for a given board)
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config TPL_CRC32
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bool "Support CRC32 in TPL"
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default y if TPL_ENV_SUPPORT || TPL_BLOBLIST
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help
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Enable this to support CRC32 in uImages or FIT images within SPL.
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This is a 32-bit checksum value that can be used to verify images.
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For FIT images, this is the least secure type of checksum, suitable
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for detected accidental image corruption. For secure applications you
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should consider SHA1 or SHA256.
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config TPL_DRIVERS_MISC
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bool "Support misc drivers in TPL"
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help
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Enable miscellaneous drivers in TPL. These drivers perform various
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tasks that don't fall nicely into other categories, Enable this
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option to build the drivers in drivers/misc as part of an TPL
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build, for those that support building in TPL (not all drivers do).
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config TPL_ENV_SUPPORT
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bool "Support an environment"
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help
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Enable environment support in TPL. See SPL_ENV_SUPPORT for details.
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config TPL_GPIO
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bool "Support GPIO in TPL"
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help
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Enable support for GPIOs (General-purpose Input/Output) in TPL.
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GPIOs allow U-Boot to read the state of an input line (high or
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low) and set the state of an output line. This can be used to
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drive LEDs, control power to various system parts and read user
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input. GPIOs can be useful in TPL to enable a 'sign-of-life' LED,
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for example. Enable this option to build the drivers in
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drivers/gpio as part of an TPL build.
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config TPL_I2C
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bool "Support I2C"
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help
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Enable support for the I2C bus in TPL. See SPL_I2C for
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details.
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config TPL_LIBCOMMON_SUPPORT
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bool "Support common libraries"
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help
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Enable support for common U-Boot libraries within TPL. See
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SPL_LIBCOMMON_SUPPORT for details.
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config TPL_LIBGENERIC_SUPPORT
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bool "Support generic libraries"
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help
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Enable support for generic U-Boot libraries within TPL. See
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SPL_LIBGENERIC_SUPPORT for details.
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config TPL_MPC8XXX_INIT_DDR
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bool "Support MPC8XXX DDR init"
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help
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Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See
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SPL_MPC8XXX_INIT_DDR for details.
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config TPL_MMC
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bool "Support MMC"
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depends on MMC
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help
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Enable support for MMC within TPL. See SPL_MMC for details.
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config TPL_NAND_SUPPORT
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bool "Support NAND flash"
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help
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Enable support for NAND in TPL. See SPL_NAND_SUPPORT for details.
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config TPL_PCI
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bool "Support PCI drivers"
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help
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Enable support for PCI in TPL. For platforms that need PCI to boot,
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or must perform some init using PCI in SPL, this provides the
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necessary driver support. This enables the drivers in drivers/pci
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as part of a TPL build.
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config TPL_PCH
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bool "Support PCH drivers"
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help
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Enable support for PCH (Platform Controller Hub) devices in TPL.
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These are used to set up GPIOs and the SPI peripheral early in
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boot. This enables the drivers in drivers/pch as part of a TPL
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build.
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config TPL_RAM_SUPPORT
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bool "Support booting from RAM"
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help
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Enable booting of an image in RAM. The image can be preloaded or
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it can be loaded by TPL directly into RAM (e.g. using USB).
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config TPL_RAM_DEVICE
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bool "Support booting from preloaded image in RAM"
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depends on TPL_RAM_SUPPORT
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help
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Enable booting of an image already loaded in RAM. The image has to
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be already in memory when TPL takes over, e.g. loaded by the boot
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ROM.
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config TPL_RTC
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bool "Support RTC drivers"
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help
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Enable RTC (Real-time Clock) support in TPL. This includes support
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for reading and setting the time. Some RTC devices also have some
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non-volatile (battery-backed) memory which is accessible if
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needed. This enables the drivers in drivers/rtc as part of an TPL
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build.
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config TPL_SERIAL
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bool "Support serial"
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select TPL_PRINTF
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select TPL_STRTO
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help
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Enable support for serial in TPL. See SPL_SERIAL for
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details.
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config TPL_SPI_FLASH_SUPPORT
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bool "Support SPI flash drivers"
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help
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Enable support for using SPI flash in TPL. See SPL_SPI_FLASH_SUPPORT
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for details.
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config TPL_SPI_FLASH_TINY
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bool "Enable low footprint TPL SPI Flash support"
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depends on TPL_SPI_FLASH_SUPPORT && !SPI_FLASH_BAR
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default y if SPI_FLASH
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help
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Enable lightweight TPL SPI Flash support that supports just reading
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data/images from flash. No support to write/erase flash. Enable
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this if you have TPL size limitations and don't need full-fledged
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SPI flash support.
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config TPL_SPI_LOAD
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bool "Support loading from SPI flash"
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depends on TPL_SPI_FLASH_SUPPORT
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help
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Enable support for loading next stage, U-Boot or otherwise, from
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SPI NOR in U-Boot TPL.
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config TPL_SPI
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bool "Support SPI drivers"
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help
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Enable support for using SPI in TPL. See SPL_SPI for
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details.
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config TPL_DM_SPI
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bool "Support SPI DM drivers in TPL"
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help
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Enable support for SPI DM drivers in TPL.
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config TPL_DM_SPI_FLASH
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bool "Support SPI DM FLASH drivers in TPL"
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help
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Enable support for SPI DM flash drivers in TPL.
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config TPL_YMODEM_SUPPORT
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bool "Support loading using Ymodem"
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depends on TPL_SERIAL
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help
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While loading from serial is slow it can be a useful backup when
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there is no other option. The Ymodem protocol provides a reliable
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means of transmitting U-Boot over a serial line for using in TPL,
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with a checksum to ensure correctness.
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endmenu
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