mirror of
https://github.com/brain-hackers/u-boot-brain
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![Heiko Schocher](/assets/img/avatar_default.png)
Move SYS_OS_BASE to Kconfig and cleanup existing uses. Signed-off-by: Heiko Schocher <hs@denx.de> [trini: Also migrate a4m2k] Signed-off-by: Tom Rini <trini@konsulko.com>
586 lines
21 KiB
Plaintext
586 lines
21 KiB
Plaintext
menu "SPL / TPL"
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config SUPPORT_SPL
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bool
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config SUPPORT_TPL
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bool
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config SPL
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bool
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depends on SUPPORT_SPL
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prompt "Enable SPL"
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help
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If you want to build SPL as well as the normal image, say Y.
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config SPL_SYS_MALLOC_SIMPLE
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bool
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depends on SPL
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prompt "Only use malloc_simple functions in the SPL"
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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 SPL 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 SPL_STACK_R
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depends on SPL
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bool "Enable SDRAM location for SPL stack"
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help
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SPL starts off execution in SRAM and thus typically has only a small
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stack available. Since SPL sets up DRAM while in its board_init_f()
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function, it is possible for the stack to move there before
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board_init_r() is reached. This option enables a special SDRAM
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location for the SPL stack. U-Boot SPL switches to this after
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board_init_f() completes, and before board_init_r() starts.
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config SPL_STACK_R_ADDR
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depends on SPL_STACK_R
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hex "SDRAM location for SPL stack"
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help
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Specify the address in SDRAM for the SPL stack. This will be set up
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before board_init_r() is called.
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config SPL_STACK_R_MALLOC_SIMPLE_LEN
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depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE
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hex "Size of malloc_simple heap after switching to DRAM SPL stack"
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default 0x100000
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help
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Specify the amount of the stack to use as memory pool for
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malloc_simple after switching the stack to DRAM. This may be set
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to give board_init_r() a larger heap then the initial heap in
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SRAM which is limited to SYS_MALLOC_F_LEN bytes.
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config SPL_SEPARATE_BSS
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depends on SPL
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bool "BSS section is in a different memory region from text"
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help
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Some platforms need a large BSS region in SPL 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 SPL_DISPLAY_PRINT
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depends on SPL
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bool "Display a board-specific message in SPL"
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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_display_print() immediately after displaying the SPL console
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banner ("U-Boot SPL ..."). This function should be provided by
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the board.
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config TPL
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bool
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depends on SPL && SUPPORT_TPL
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prompt "Enable TPL"
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help
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If you want to build TPL as well as the normal image and SPL, say Y.
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config SPL_CRC32_SUPPORT
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bool "Support CRC32"
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depends on SPL_FIT
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help
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Enable this to support CRC32 in FIT images within SPL. This is a
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32-bit checksum value that can be used to verify images. This is
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the least secure type of checksum, suitable for detected
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accidental image corruption. For secure applications you should
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consider SHA1 or SHA256.
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config SPL_MD5_SUPPORT
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bool "Support MD5"
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depends on SPL_FIT
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help
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Enable this to support MD5 in FIT images within SPL. An MD5
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checksum is a 128-bit hash value used to check that the image
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contents have not been corrupted. Note that MD5 is not considered
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secure as it is possible (with a brute-force attack) to adjust the
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image while still retaining the same MD5 hash value. For secure
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applications where images may be changed maliciously, you should
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consider SHA1 or SHA256.
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config SPL_SHA1_SUPPORT
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bool "Support SHA1"
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depends on SPL_FIT
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help
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Enable this to support SHA1 in FIT images within SPL. A SHA1
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checksum is a 160-bit (20-byte) hash value used to check that the
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image contents have not been corrupted or maliciously altered.
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While SHA1 is fairly secure it is coming to the end of its life
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due to the expanding computing power avaiable to brute-force
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attacks. For more security, consider SHA256.
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config SPL_SHA256_SUPPORT
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bool "Support SHA256"
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depends on SPL_FIT
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help
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Enable this to support SHA256 in FIT images within SPL. A SHA256
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checksum is a 256-bit (32-byte) hash value used to check that the
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image contents have not been corrupted. SHA256 is recommended for
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use in secure applications since (as at 2016) there is no known
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feasible attack that could produce a 'collision' with differing
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input data. Use this for the highest security. Note that only the
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SHA256 variant is supported: SHA512 and others are not currently
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supported in U-Boot.
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config SPL_CRYPTO_SUPPORT
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bool "Support crypto drivers"
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depends on SPL
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help
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Enable crypto drivers in SPL. These drivers can be used to
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accelerate secure boot processing in secure applications. Enable
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this option to build the drivers in drivers/crypto as part of an
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SPL build.
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config SPL_HASH_SUPPORT
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bool "Support hashing drivers"
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depends on SPL
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help
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Enable hashing drivers in SPL. These drivers can be used to
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accelerate secure boot processing in secure applications. Enable
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this option to build system-specific drivers for hash acceleration
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as part of an SPL build.
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config SPL_DMA_SUPPORT
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bool "Support DMA drivers"
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depends on SPL
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help
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Enable DMA (direct-memory-access) drivers in SPL. These drivers
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can be used to handle memory-to-peripheral data transfer without
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the CPU moving the data. Enable this option to build the drivers
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in drivers/dma as part of an SPL build.
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config SPL_DRIVERS_MISC_SUPPORT
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bool "Support misc drivers"
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depends on SPL
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help
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Enable miscellaneous drivers in SPL. 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 SPL
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build, for those that support building in SPL (not all drivers do).
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config SPL_ENV_SUPPORT
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bool "Support an environment"
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depends on SPL
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help
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Enable environment support in SPL. The U-Boot environment provides
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a number of settings (essentially name/value pairs) which can
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control many aspects of U-Boot's operation. Normally this is not
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needed in SPL as it has a much simpler task with less
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configuration. But some boards use this to support 'Falcon' boot
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on EXT2 and FAT, where SPL boots directly into Linux without
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starting U-Boot first. Enabling this option will make getenv()
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and setenv() available in SPL.
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config SPL_SAVEENV
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bool "Support save environment"
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depends on SPL && SPL_ENV_SUPPORT
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help
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Enable save environment support in SPL after setenv. By default
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the saveenv option is not provided in SPL, but some boards need
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this support in 'Falcon' boot, where SPL need to boot from
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different images based on environment variable set by OS. For
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example OS may set "reboot_image" environment variable to
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"recovery" inorder to boot recovery image by SPL. The SPL read
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"reboot_image" and act accordingly and change the reboot_image
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to default mode using setenv and save the environemnt.
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config SPL_ETH_SUPPORT
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bool "Support Ethernet"
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depends on SPL_ENV_SUPPORT
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help
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Enable access to the network subsystem and associated Ethernet
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drivers in SPL. This permits SPL to load U-Boot over an Ethernet
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link rather than from an on-board peripheral. Environment support
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is required since the network stack uses a number of environment
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variables. See also SPL_NET_SUPPORT.
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config SPL_EXT_SUPPORT
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bool "Support EXT filesystems"
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depends on SPL
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help
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Enable support for EXT2/3/4 filesystems with SPL. This permits
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U-Boot (or Linux in Falcon mode) to be loaded from an EXT
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filesystem from within SPL. Support for the underlying block
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device (e.g. MMC or USB) must be enabled separately.
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config SPL_FAT_SUPPORT
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bool "Support FAT filesystems"
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depends on SPL
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help
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Enable support for FAT and VFAT filesystems with SPL. This
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permits U-Boot (or Linux in Falcon mode) to be loaded from a FAT
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filesystem from within SPL. Support for the underlying block
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device (e.g. MMC or USB) must be enabled separately.
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config SPL_FPGA_SUPPORT
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bool "Support FPGAs"
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depends on SPL
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help
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Enable support for FPGAs in SPL. Field-programmable Gate Arrays
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provide software-configurable hardware which is typically used to
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implement peripherals (such as UARTs, LCD displays, MMC) or
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accelerate custom processing functions, such as image processing
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or machine learning. Sometimes it is useful to program the FPGA
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as early as possible during boot, and this option can enable that
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within SPL.
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config SPL_GPIO_SUPPORT
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bool "Support GPIO"
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depends on SPL
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help
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Enable support for GPIOs (General-purpose Input/Output) in SPL.
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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 SPL 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 SPL build.
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config SPL_I2C_SUPPORT
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bool "Support I2C"
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depends on SPL
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help
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Enable support for the I2C (Inter-Integrated Circuit) bus in SPL.
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I2C works with a clock and data line which can be driven by a
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one or more masters or slaves. It is a fairly complex bus but is
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widely used as it only needs two lines for communication. Speeds of
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400kbps are typical but up to 3.4Mbps is supported by some
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hardware. I2C can be useful in SPL to configure power management
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ICs (PMICs) before raising the CPU clock speed, for example.
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Enable this option to build the drivers in drivers/i2c as part of
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an SPL build.
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config SPL_LIBCOMMON_SUPPORT
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bool "Support common libraries"
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depends on SPL
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help
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Enable support for common U-Boot libraries within SPL. These
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libraries include common code to deal with U-Boot images,
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environment and USB, for example. This option is enabled on many
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boards. Enable this option to build the code in common/ as part of
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an SPL build.
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config SPL_LIBDISK_SUPPORT
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bool "Support disk paritions"
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depends on SPL
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help
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Enable support for disk partitions within SPL. 'Disk' is something
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of a misnomer as it includes non-spinning media such as flash (as
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used in MMC and USB sticks). Partitions provide a way for a disk
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to be split up into separate regions, with a partition table placed
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at the start or end which describes the location and size of each
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'partition'. These partitions are typically uses as individual block
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devices, typically with an EXT2 or FAT filesystem in each. This
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option enables whatever partition support has been enabled in
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U-Boot to also be used in SPL. It brings in the code in disk/.
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config SPL_LIBGENERIC_SUPPORT
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bool "Support generic libraries"
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depends on SPL
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help
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Enable support for generic U-Boot libraries within SPL. These
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libraries include generic code to deal with device tree, hashing,
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printf(), compression and the like. This option is enabled on many
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boards. Enable this option to build the code in lib/ as part of an
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SPL build.
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config SPL_MMC_SUPPORT
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bool "Support MMC"
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depends on SPL
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help
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Enable support for MMC (Multimedia Card) within SPL. This enables
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the MMC protocol implementation and allows any enabled drivers to
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be used within SPL. MMC can be used with or without disk partition
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support depending on the application (SPL_LIBDISK_SUPPORT). Enable
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this option to build the drivers in drivers/mmc as part of an SPL
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build.
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config SPL_MPC8XXX_INIT_DDR_SUPPORT
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bool "Support MPC8XXX DDR init"
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depends on SPL
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help
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Enable support for DDR-SDRAM (double-data-rate synchronous dynamic
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random-access memory) on the MPC8XXX family within SPL. This
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allows DRAM to be set up before loading U-Boot into that DRAM,
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where it can run.
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config SPL_MTD_SUPPORT
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bool "Support MTD drivers"
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depends on SPL
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help
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Enable support for MTD (Memory Technology Device) within SPL. MTD
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provides a block interface over raw NAND and can also be used with
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SPI flash. This allows SPL to load U-Boot from supported MTD
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devices. See SPL_NAND_SUPPORT and SPL_ONENAND_SUPPORT for how
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to enable specific MTD drivers.
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config SPL_MUSB_NEW_SUPPORT
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bool "Support new Mentor Graphics USB"
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depends on SPL
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help
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Enable support for Mentor Graphics USB in SPL. This is a new
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driver used by some boards. Enable this option to build
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the drivers in drivers/usb/musb-new as part of an SPL build. The
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old drivers are in drivers/usb/musb.
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config SPL_NAND_SUPPORT
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bool "Support NAND flash"
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depends on SPL
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help
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Enable support for NAND (Negative AND) flash in SPL. NAND flash
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can be used to allow SPL to load U-Boot from supported devices.
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This enables the drivers in drivers/mtd/nand as part of an SPL
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build.
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config SPL_NET_SUPPORT
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bool "Support networking"
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depends on SPL
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help
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Enable support for network devices (such as Ethernet) in SPL.
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This permits SPL to load U-Boot over a network link rather than
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from an on-board peripheral. Environment support is required since
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the network stack uses a number of environment variables. See also
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SPL_ETH_SUPPORT.
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if SPL_NET_SUPPORT
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config SPL_NET_VCI_STRING
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string "BOOTP Vendor Class Identifier string sent by SPL"
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help
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As defined by RFC 2132 the vendor class identifier field can be
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sent by the client to identify the vendor type and configuration
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of a client. This is often used in practice to allow for the DHCP
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server to specify different files to load depending on if the ROM,
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SPL or U-Boot itself makes the request
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endif # if SPL_NET_SUPPORT
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config SPL_NO_CPU_SUPPORT
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bool "Drop CPU code in SPL"
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depends on SPL
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help
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This is specific to the ARM926EJ-S CPU. It disables the standard
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start.S start-up code, presumably so that a replacement can be
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used on that CPU. You should not enable it unless you know what
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you are doing.
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config SPL_NOR_SUPPORT
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bool "Support NOR flash"
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depends on SPL
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help
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Enable support for loading U-Boot from memory-mapped NOR (Negative
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OR) flash in SPL. NOR flash is slow to write but fast to read, and
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a memory-mapped device makes it very easy to access. Loading from
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NOR is typically achieved with just a memcpy().
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config SPL_ONENAND_SUPPORT
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bool "Support OneNAND flash"
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depends on SPL
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help
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Enable support for OneNAND (Negative AND) flash in SPL. OneNAND is
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a type of NAND flash and therefore can be used to allow SPL to
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load U-Boot from supported devices. This enables the drivers in
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drivers/mtd/onenand as part of an SPL build.
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config SPL_OS_BOOT
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bool "Activate Falcon Mode"
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depends on SPL && !TI_SECURE_DEVICE
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default n
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help
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Enable booting directly to an OS from SPL.
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for more info read doc/README.falcon
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if SPL_OS_BOOT
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config SYS_OS_BASE
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hex "addr, where OS is found"
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depends on SPL && SPL_NOR_SUPPORT
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help
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Specify the address, where the OS image is found, which
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gets booted.
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endif # SPL_OS_BOOT
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config SPL_POST_MEM_SUPPORT
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bool "Support POST drivers"
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depends on SPL
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help
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Enable support for POST (Power-on Self Test) in SPL. POST is a
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procedure that checks that the hardware (CPU or board) appears to
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be functionally correctly. It is a sanity check that can be
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performed before booting. This enables the drivers in post/drivers
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as part of an SPL build.
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config SPL_POWER_SUPPORT
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bool "Support power drivers"
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depends on SPL
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help
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Enable support for power control in SPL. 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 SPL 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 SPL build.
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config SPL_SATA_SUPPORT
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bool "Support loading from SATA"
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depends on SPL
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help
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Enable support for SATA (Serial AT attachment) in SPL. This allows
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use of SATA devices such as hard drives and flash drivers for
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loading U-Boot. SATA is used in higher-end embedded systems and
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can provide higher performance than MMC , at somewhat higher
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expense and power consumption. This enables loading from SATA
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using a configured device.
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config SPL_SERIAL_SUPPORT
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bool "Support serial"
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depends on SPL
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help
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Enable support for serial in SPL. This allows use of a serial UART
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for displaying messages while SPL is running. It also brings in
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printf() and panic() functions. This should normally be enabled
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unless there are space reasons not to. Even then, consider
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enabling USE_TINY_PRINTF which is a small printf() version.
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config SPL_SPI_FLASH_SUPPORT
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bool "Support SPI flash drivers"
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depends on SPL
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help
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Enable support for using SPI flash in SPL, and loading U-Boot from
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SPI flash. SPI flash (Serial Peripheral Bus flash) is named after
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the SPI bus that is used to connect it to a system. It is a simple
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but fast bidirectional 4-wire bus (clock, chip select and two data
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lines). This enables the drivers in drivers/mtd/spi as part of an
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SPL build. This normally requires SPL_SPI_SUPPORT.
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config SPL_SPI_SUPPORT
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bool "Support SPI drivers"
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depends on SPL
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help
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Enable support for using SPI in SPL. This is used for connecting
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to SPI flash for loading U-Boot. See SPL_SPI_FLASH_SUPPORT for
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more details on that. The SPI driver provides the transport for
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data between the SPI flash and the CPU. This option can be used to
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enable SPI drivers that are needed for other purposes also, such
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as a SPI PMIC.
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config SPL_USBETH_SUPPORT
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bool "Support USB Ethernet drivers"
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depends on SPL
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help
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Enable access to the USB network subsystem and associated
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drivers in SPL. This permits SPL to load U-Boot over a
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USB-connected Ethernet link (such as a USB Ethernet dongle) rather
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than from an onboard peripheral. Environment support is required
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since the network stack uses a number of environment variables.
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See also SPL_NET_SUPPORT and SPL_ETH_SUPPORT.
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config SPL_USB_HOST_SUPPORT
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|
bool "Support USB host drivers"
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|
depends on SPL
|
|
help
|
|
Enable access to USB (Universal Serial Bus) host devices so that
|
|
SPL can load U-Boot from a connected USB peripheral, such as a USB
|
|
flash stick. While USB takes a little longer to start up than most
|
|
buses, it is very flexible since many different types of storage
|
|
device can be attached. This option enables the drivers in
|
|
drivers/usb/host as part of an SPL build.
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|
|
|
config SPL_USB_SUPPORT
|
|
bool "Support loading from USB"
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|
depends on SPL_USB_HOST_SUPPORT
|
|
help
|
|
Enable support for USB devices in SPL. This allows use of USB
|
|
devices such as hard drives and flash drivers for loading U-Boot.
|
|
The actual drivers are enabled separately using the normal U-Boot
|
|
config options. This enables loading from USB using a configured
|
|
device.
|
|
|
|
config SPL_WATCHDOG_SUPPORT
|
|
bool "Support watchdog drivers"
|
|
depends on SPL
|
|
help
|
|
Enable support for watchdog drivers in SPL. A watchdog is
|
|
typically a hardware peripheral which can reset the system when it
|
|
detects no activity for a while (such as a software crash). This
|
|
enables the drivers in drivers/watchdog as part of an SPL build.
|
|
|
|
config SPL_YMODEM_SUPPORT
|
|
bool "Support loading using Ymodem"
|
|
depends on SPL
|
|
help
|
|
While loading from serial is slow it can be a useful backup when
|
|
there is no other option. The Ymodem protocol provides a reliable
|
|
means of transmitting U-Boot over a serial line for using in SPL,
|
|
with a checksum to ensure correctness.
|
|
|
|
config TPL_ENV_SUPPORT
|
|
bool "Support an environment"
|
|
depends on TPL
|
|
help
|
|
Enable environment support in TPL. See SPL_ENV_SUPPORT for details.
|
|
|
|
config TPL_I2C_SUPPORT
|
|
bool "Support I2C"
|
|
depends on TPL
|
|
help
|
|
Enable support for the I2C bus in SPL. See SPL_I2C_SUPPORT for
|
|
details.
|
|
|
|
config TPL_LIBCOMMON_SUPPORT
|
|
bool "Support common libraries"
|
|
depends on TPL
|
|
help
|
|
Enable support for common U-Boot libraries within TPL. See
|
|
SPL_LIBCOMMON_SUPPORT for details.
|
|
|
|
config TPL_LIBGENERIC_SUPPORT
|
|
bool "Support generic libraries"
|
|
depends on TPL
|
|
help
|
|
Enable support for generic U-Boot libraries within TPL. See
|
|
SPL_LIBGENERIC_SUPPORT for details.
|
|
|
|
config TPL_MPC8XXX_INIT_DDR_SUPPORT
|
|
bool "Support MPC8XXX DDR init"
|
|
depends on TPL
|
|
help
|
|
Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See
|
|
SPL_MPC8XXX_INIT_DDR_SUPPORT for details.
|
|
|
|
config TPL_MMC_SUPPORT
|
|
bool "Support MMC"
|
|
depends on TPL
|
|
help
|
|
Enable support for MMC within TPL. See SPL_MMC_SUPPORT for details.
|
|
|
|
config TPL_NAND_SUPPORT
|
|
bool "Support NAND flash"
|
|
depends on TPL
|
|
help
|
|
Enable support for NAND in SPL. See SPL_NAND_SUPPORT for details.
|
|
|
|
config TPL_SERIAL_SUPPORT
|
|
bool "Support serial"
|
|
depends on TPL
|
|
help
|
|
Enable support for serial in SPL. See SPL_SERIAL_SUPPORT for
|
|
details.
|
|
|
|
config TPL_SPI_FLASH_SUPPORT
|
|
bool "Support SPI flash drivers"
|
|
depends on TPL
|
|
help
|
|
Enable support for using SPI flash in SPL. See SPL_SPI_FLASH_SUPPORT
|
|
for details.
|
|
|
|
config TPL_SPI_SUPPORT
|
|
bool "Support SPI drivers"
|
|
depends on TPL
|
|
help
|
|
Enable support for using SPI in SPL. See SPL_SPI_SUPPORT for
|
|
details.
|
|
|
|
endmenu
|