supports MMC, NAND and YMODEM and other methods loading of U-Boot
and the Linux Kernel. If unsure, say Y.
+config SPL_SIZE_LIMIT
+ int "Maximum size of SPL image"
+ depends on SPL
+ default 69632 if ARCH_MX6
+ default 0
+ help
+ Specifies the maximum length of the U-Boot SPL image.
+ If this value is zero, it is ignored.
+
+config SPL_SIZE_LIMIT_SUBTRACT_GD
+ bool "SPL image size check: provide space for global data"
+ depends on SPL_SIZE_LIMIT > 0
+ help
+ If enabled, aligned size of global data is reserved in
+ SPL_SIZE_LIMIT check to ensure such an image does not overflow SRAM
+ if SPL_SIZE_LIMIT describes the size of SRAM available for SPL when
+ pre-reloc global data is put into this SRAM, too.
+
+config SPL_SIZE_LIMIT_SUBTRACT_MALLOC
+ bool "SPL image size check: provide space for malloc() pool before relocation"
+ depends on SPL_SIZE_LIMIT > 0
+ help
+ If enabled, SPL_SYS_MALLOC_F_LEN is reserved in SPL_SIZE_LIMIT check
+ to ensure such an image does not overflow SRAM if SPL_SIZE_LIMIT
+ describes the size of SRAM available for SPL when pre-reloc malloc
+ pool is put into this SRAM, too.
+
+config SPL_SIZE_LIMIT_PROVIDE_STACK
+ hex "SPL image size check: provide stack space before relocation"
+ depends on SPL_SIZE_LIMIT > 0
+ default 0
+ help
+ If set, this size is reserved in SPL_SIZE_LIMIT check to ensure such
+ an image does not overflow SRAM if SPL_SIZE_LIMIT describes the size
+ of SRAM available for SPL when the stack required before reolcation
+ uses this SRAM, too.
+
+menu "PowerPC SPL Boot options"
+ depends on PPC && (SUPPORT_SPL && !SPL_FRAMEWORK)
+
+config SPL_NAND_BOOT
+ bool "Load SPL from NAND flash"
+
+config SPL_MMC_BOOT
+ bool "Load SPL from SD Card / eMMC"
+
+config SPL_SPI_BOOT
+ bool "Load SPL from SPI flash"
+
+config SPL_FSL_PBL
+ bool "Create SPL in Freescale PBI format"
+ help
+ Create boot binary having SPL binary in PBI format concatenated with
+ u-boot binary.
+
+endmenu
+
+config HANDOFF
+ bool "Pass hand-off information from SPL to U-Boot proper"
+ depends on BLOBLIST
+ help
+ It is useful to be able to pass information from SPL to U-Boot
+ proper to preserve state that is known in SPL and is needed in U-Boot.
+ Enable this to locate the handoff information in U-Boot proper, early
+ in boot. It is available in gd->handoff. The state state is set up
+ in SPL (or TPL if that is being used).
+
if SPL
+config SPL_HANDOFF
+ bool "Pass hand-off information from SPL to U-Boot proper"
+ depends on HANDOFF
+ default y
+ help
+ This option enables SPL to write handoff information. This can be
+ used to pass information like the size of SDRAM from SPL to U-Boot
+ proper. Also SPL can receive information from TPL in the same place
+ if that is enabled.
+
config SPL_LDSCRIPT
string "Linker script for the SPL stage"
default "arch/$(ARCH)/cpu/u-boot-spl.lds"
U-Boot stage. Set this to the path of the linker-script to
be used for SPL.
+config SPL_TEXT_BASE
+ hex "SPL Text Base"
+ default ISW_ENTRY_ADDR if AM43XX || AM33XX || OMAP54XX || ARCH_KEYSTONE
+ default 0x0
+ help
+ The address in memory that SPL will be running from.
+
config SPL_BOARD_INIT
bool "Call board-specific initialization in SPL"
help
is y. If this is not set, SPL will move on to other available
boot media to find a suitable image.
+config SPL_LEGACY_IMAGE_CRC_CHECK
+ bool "Check CRC of Legacy images"
+ depends on SPL_LEGACY_IMAGE_SUPPORT
+ select SPL_CRC32_SUPPORT
+ help
+ Enable this to check the CRC of Legacy images. While this increases
+ reliability, it affects both code size and boot duration.
+ If disabled, Legacy images are booted if the image magic and size
+ are correct, without further integrity checks.
+
config SPL_SYS_MALLOC_SIMPLE
bool
prompt "Only use malloc_simple functions in the SPL"
location is used. Normally we put the device tree at the end of BSS
but with this option enabled, it goes at _image_binary_end.
-config SPL_DISABLE_BANNER_PRINT
- bool "Disable output of the SPL banner 'U-Boot SPL ...'"
+config SPL_BANNER_PRINT
+ bool "Enable output of the SPL banner 'U-Boot SPL ...'"
+ default y
+ help
+ If this option is enabled, SPL will print the banner with version
+ info. Disabling this option could be useful to reduce TPL boot time
+ (e.g. approx. 6 ms faster, when output on i.MX6 with 115200 baud).
+
+config TPL_BANNER_PRINT
+ bool "Enable output of the TPL banner 'U-Boot TPL ...'"
+ default y
help
If this option is enabled, SPL will not print the banner with version
- info. Selecting this option could be useful to reduce SPL boot time
- (e.g. approx. 6 ms slower, when output on i.MX6 with 115200 baud).
+ info. Disabling this option could be useful to reduce SPL boot time
+ (e.g. approx. 6 ms faster, when output on i.MX6 with 115200 baud).
config SPL_DISPLAY_PRINT
bool "Display a board-specific message in SPL"
config SPL_CRC32_SUPPORT
bool "Support CRC32"
- depends on SPL_FIT
+ default y if SPL_LEGACY_IMAGE_SUPPORT
help
- Enable this to support CRC32 in FIT images within SPL. This is a
- 32-bit checksum value that can be used to verify images. This is
- the least secure type of checksum, suitable for detected
- accidental image corruption. For secure applications you should
- consider SHA1 or SHA256.
+ Enable this to support CRC32 in uImages or FIT images within SPL.
+ 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 SPL_MD5_SUPPORT
bool "Support MD5"
checksum is a 160-bit (20-byte) hash value used to check that the
image contents have not been corrupted or maliciously altered.
While SHA1 is fairly secure it is coming to the end of its life
- due to the expanding computing power avaiable to brute-force
+ due to the expanding computing power available to brute-force
attacks. For more security, consider SHA256.
config SPL_SHA256_SUPPORT
bool "Remove functionality from SPL FIT loading to reduce size"
depends on SPL_FIT
default y if MACH_SUN50I || MACH_SUN50I_H5 || MACH_SUN50I_H6
+ default y if ARCH_IMX8M
help
Enable this to reduce the size of the FIT image loading code
in SPL, if space for the SPL binary is very tight.
this option to build system-specific drivers for hash acceleration
as part of an SPL build.
+config TPL_HASH_SUPPORT
+ bool "Support hashing drivers in TPL"
+ select SHA1
+ select SHA256
+ help
+ Enable hashing drivers in SPL. 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 an SPL build.
+
config SPL_DMA_SUPPORT
bool "Support DMA drivers"
help
is required since the network stack uses a number of environment
variables. See also SPL_NET_SUPPORT.
-config SPL_EXT_SUPPORT
+config SPL_FS_EXT4
bool "Support EXT filesystems"
help
Enable support for EXT2/3/4 filesystems with SPL. This permits
filesystem from within SPL. Support for the underlying block
device (e.g. MMC or USB) must be enabled separately.
-config SPL_FAT_SUPPORT
+config SPL_FS_FAT
bool "Support FAT filesystems"
select FS_FAT
help
filesystem from within SPL. Support for the underlying block
device (e.g. MMC or USB) must be enabled separately.
+config SPL_FAT_WRITE
+ bool "Support write for FAT filesystems"
+ help
+ Enable write support for FAT and VFAT filesystems with SPL.
+ Support for the underlying block device (e.g. MMC or USB) must be
+ enabled separately.
+
config SPL_FPGA_SUPPORT
bool "Support FPGAs"
help
within SPL.
config SPL_GPIO_SUPPORT
- bool "Support GPIO"
+ bool "Support GPIO in SPL"
help
Enable support for GPIOs (General-purpose Input/Output) in SPL.
GPIOs allow U-Boot to read the state of an input line (high or
config SPL_LIBDISK_SUPPORT
bool "Support disk partitions"
+ select PARTITIONS
help
Enable support for disk partitions within SPL. 'Disk' is something
of a misnomer as it includes non-spinning media such as flash (as
config SPL_MMC_SUPPORT
bool "Support MMC"
depends on MMC
+ select HAVE_BLOCK_DEVICE
help
Enable support for MMC (Multimedia Card) within SPL. This enables
the MMC protocol implementation and allows any enabled drivers to
default "tpl/u-boot-with-tpl.bin" if TPL
default "u-boot.bin"
help
- Payload for SPL boot. For backward compability, default to
+ Payload for SPL boot. For backward compatibility, default to
u-boot.bin, i.e. RAW image without any header. In case of
TPL, tpl/u-boot-with-tpl.bin. For new boards, suggest to
use u-boot.img.
-config SPL_PCI_SUPPORT
+config SPL_PCI
bool "Support PCI drivers"
help
Enable support for PCI in SPL. For platforms that need PCI to boot,
lines). This enables the drivers in drivers/mtd/spi as part of an
SPL build. This normally requires SPL_SPI_SUPPORT.
+if SPL_SPI_FLASH_SUPPORT
+
+config SPL_SPI_FLASH_TINY
+ bool "Enable low footprint SPL SPI Flash support"
+ depends on !SPI_FLASH_BAR
+ default y if SPI_FLASH
+ help
+ Enable lightweight SPL SPI Flash support that supports just reading
+ data/images from flash. No support to write/erase flash. Enable
+ this if you have SPL size limitations and don't need full
+ fledged SPI flash support.
+
+config SPL_SPI_FLASH_SFDP_SUPPORT
+ bool "SFDP table parsing support for SPI NOR flashes"
+ depends on !SPI_FLASH_BAR && !SPL_SPI_FLASH_TINY
+ help
+ Enable support for parsing and auto discovery of parameters for
+ SPI NOR flashes using Serial Flash Discoverable Parameters (SFDP)
+ tables as per JESD216 standard in SPL.
+
config SPL_SPI_LOAD
bool "Support loading from SPI flash"
- depends on SPL_SPI_FLASH_SUPPORT
help
Enable support for loading next stage, U-Boot or otherwise, from
SPI NOR in U-Boot SPL.
+endif # SPL_SPI_FLASH_SUPPORT
+
config SPL_SPI_SUPPORT
bool "Support SPI drivers"
help
config SPL_USB_HOST_SUPPORT
bool "Support USB host drivers"
+ select HAVE_BLOCK_DEVICE
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
device can be attached. This option enables the drivers in
drivers/usb/host as part of an SPL build.
-config SPL_USB_SUPPORT
+config SPL_USB_STORAGE
bool "Support loading from USB"
- depends on SPL_USB_HOST_SUPPORT
+ depends on SPL_USB_HOST_SUPPORT && !(BLK && !DM_USB)
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.
config options. This enables loading from USB using a configured
device.
-config SPL_USB_GADGET_SUPPORT
+config SPL_USB_GADGET
bool "Suppport USB Gadget drivers"
help
Enable USB Gadget API which allows to enable USB device functions
in SPL.
-if SPL_USB_GADGET_SUPPORT
+if SPL_USB_GADGET
config SPL_USB_ETHER
bool "Support USB Ethernet drivers"
since the network stack uses a number of environment variables.
See also SPL_NET_SUPPORT and SPL_ETH_SUPPORT.
-config SPL_DFU_SUPPORT
+config SPL_DFU
bool "Support DFU (Device Firmware Upgrade)"
select SPL_HASH_SUPPORT
select SPL_DFU_NO_RESET
choice
bool "DFU device selection"
- depends on SPL_DFU_SUPPORT
+ depends on SPL_DFU
config SPL_DFU_RAM
bool "RAM device"
- depends on SPL_DFU_SUPPORT && SPL_RAM_SUPPORT
+ depends on SPL_DFU && SPL_RAM_SUPPORT
help
select RAM/DDR memory device for loading binary images
(u-boot/kernel) to the selected device partition using
Enable access to the AM33xx RTC and select the external 32kHz clock
source.
+config SPL_OPTEE
+ bool "Support OP-TEE Trusted OS"
+ depends on ARM
+ help
+ OP-TEE is an open source Trusted OS which is loaded by SPL.
+ More detail at: https://github.com/OP-TEE/optee_os
+
config TPL
bool
depends on SUPPORT_TPL
if TPL
+config TPL_HANDOFF
+ bool "Pass hand-off information from TPL to SPL and U-Boot proper"
+ depends on HANDOFF
+ default y
+ help
+ This option enables TPL to write handoff information. This can be
+ used to pass information like the size of SDRAM from TPL to U-Boot
+ proper. The information is also available to SPL if it is useful
+ there.
+
config TPL_BOARD_INIT
bool "Call board-specific initialization in TPL"
help
config TPL_LDSCRIPT
string "Linker script for the TPL stage"
depends on TPL
+ default "arch/arm/cpu/armv8/u-boot-spl.lds" if ARM64
+ default "arch/$(ARCH)/cpu/u-boot-spl.lds"
help
The TPL stage will usually require a different linker-script
(as it runs from a different memory region) than the regular
help
Enable environment support in TPL. See SPL_ENV_SUPPORT for details.
+config TPL_GPIO_SUPPORT
+ bool "Support GPIO in TPL"
+ help
+ Enable support for GPIOs (General-purpose Input/Output) in TPL.
+ 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 TPL to enable a 'sign-of-life' LED,
+ for example. Enable this option to build the drivers in
+ drivers/gpio as part of an TPL build.
+
config TPL_I2C_SUPPORT
bool "Support I2C"
help
help
Enable support for NAND in TPL. See SPL_NAND_SUPPORT for details.
+config TPL_PCI
+ bool "Support PCI drivers"
+ help
+ Enable support for PCI in TPL. For platforms that need PCI to boot,
+ or must perform some init using PCI in SPL, this provides the
+ necessary driver support. This enables the drivers in drivers/pci
+ as part of a TPL build.
+
+config TPL_PCH_SUPPORT
+ bool "Support PCH drivers"
+ help
+ Enable support for PCH (Platform Controller Hub) devices in TPL.
+ 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 TPL
+ build.
+
config TPL_RAM_SUPPORT
bool "Support booting from RAM"
help
be already in memory when TPL takes over, e.g. loaded by the boot
ROM.
+config TPL_RTC_SUPPORT
+ bool "Support RTC drivers"
+ help
+ Enable RTC (Real-time Clock) support in TPL. 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 an TPL
+ build.
+
config TPL_SERIAL_SUPPORT
bool "Support serial"
select TPL_PRINTF
endif # TPL
+config SPL_AT91_MCK_BYPASS
+ bool "Use external clock signal as a source of main clock for AT91 platforms"
+ depends on ARCH_AT91
+ default n
+ help
+ Use external 8 to 24 Mhz clock signal as source of main clock instead
+ of an external crystal oscillator.
+ This option disables the internal driving on the XOUT pin.
+ The external source has to provide a stable clock on the XIN pin.
+ If this option is disabled, the SoC expects a crystal oscillator
+ that needs driving on both XIN and XOUT lines.
+
endif # SPL
endmenu
projects / oweals / u-boot.git / blobdiff