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.
+
+config SPL_SYS_STACK_F_CHECK_BYTE
+ hex
+ default 0xaa
+ help
+ Constant used to check the stack
+
+config SPL_SYS_REPORT_STACK_F_USAGE
+ depends on SPL_SIZE_LIMIT_PROVIDE_STACK != 0
+ bool "Check and report stack usage in SPL before relocation"
+ help
+ If this option is enabled, the initial SPL stack is filled with 0xaa
+ very early, up to the size configured with
+ SPL_SIZE_LIMIT_PROVIDE_STACK.
+ Later when SPL is done using this initial stack and switches to a
+ stack in DRAM, the actually used size of this initial stack is
+ reported by examining the memory and searching for the lowest
+ occurrence of non 0xaa bytes.
+ This default implementation works for stacks growing down only.
+
+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
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 0x10060 if MACH_SUN50I || MACH_SUN50I_H5 || MACH_SUN9I
+ default 0x20060 if MACH_SUN50I_H6
+ default 0x00060 if ARCH_SUNXI
+ 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
config SPL_LEGACY_IMAGE_SUPPORT
bool "Support SPL loading and booting of Legacy images"
- default y if !TI_SECURE_DEVICE
+ default y if !TI_SECURE_DEVICE && !SPL_LOAD_FIT
help
SPL will support loading and booting Legacy images when this option
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"
config TPL_SYS_MALLOC_SIMPLE
bool
prompt "Only use malloc_simple functions in the TPL"
+ depends on TPL
help
Say Y here to only use the *_simple malloc functions from
malloc_simple.c, rather then using the versions from dlmalloc.c;
config TPL_BANNER_PRINT
bool "Enable output of the TPL banner 'U-Boot TPL ...'"
+ depends on TPL
default y
help
If this option is enabled, SPL will not print the banner with version
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_EARLY_BSS
+ depends on ARM && !ARM64
+ bool "Allows initializing BSS early before entering board_init_f"
+ help
+ On some platform we have sufficient memory available early on to
+ allow setting up and using a basic BSS prior to entering
+ board_init_f. Activating this option will also de-activate the
+ clearing of BSS during the SPL relocation process, thus allowing
+ to carry state from board_init_f to board_init_r by way of BSS.
+
config SPL_DISPLAY_PRINT
bool "Display a board-specific message in SPL"
help
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
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
this option to build the drivers in drivers/mmc as part of an SPL
build.
+config SPL_MMC_TINY
+ bool "Tiny MMC framework in SPL"
+ depends on SPL_MMC_SUPPORT
+ default n
+ help
+ Enable MMC framework tinification support. This option is useful if
+ if your SPL is extremely size constrained. Heed the warning, enable
+ this option if and only if you know exactly what you are doing, if
+ you are reading this help text, you most likely have no idea :-)
+
+ The MMC framework is reduced to bare minimum to be useful. No malloc
+ support is needed for the MMC framework operation with this option
+ enabled. The framework supports exactly one MMC device and exactly
+ one MMC driver. The MMC driver can be adjusted to avoid any malloc
+ operations too, which can remove the need for malloc support in SPL
+ and thus further reduce footprint.
+
config SPL_MMC_WRITE
bool "MMC/SD/SDIO card support for write operations in SPL"
depends on SPL_MMC_SUPPORT
This enables the drivers in drivers/mtd/nand/raw as part of an SPL
build.
+config SPL_UBI
+ bool "Support UBI"
+ help
+ Enable support for loading payloads from UBI. See
+ README.ubispl for more info.
+
+if SPL_UBI
+config SPL_UBI_LOAD_BY_VOLNAME
+ bool "Support loading volumes by name"
+ help
+ This enables support for loading UBI volumes by name. When this
+ is set, CONFIG_SPL_UBI_LOAD_MONITOR_VOLNAME can be used to
+ configure the volume name from which to load U-Boot.
+
+config SPL_UBI_MAX_VOL_LEBS
+ int "Maximum number of LEBs per volume"
+ depends on SPL_UBI
+ help
+ The maximum number of logical eraseblocks which a static volume
+ to load can contain. Used for sizing the scan data structure.
+
+config SPL_UBI_MAX_PEB_SIZE
+ int "Maximum PEB size"
+ depends on SPL_UBI
+ help
+ The maximum physical erase block size.
+
+config SPL_UBI_MAX_PEBS
+ int "Maximum number of PEBs"
+ depends on SPL_UBI
+ help
+ The maximum physical erase block size. If not overridden by
+ board code, this value will be used as the actual number of PEBs.
+
+config SPL_UBI_PEB_OFFSET
+ int "Offset to first UBI PEB"
+ depends on SPL_UBI
+ help
+ The offset in number of PEBs from the start of flash to the first
+ PEB part of the UBI image.
+
+config SPL_UBI_VID_OFFSET
+ int "Offset to VID header"
+ depends on SPL_UBI
+
+config SPL_UBI_LEB_START
+ int "Offset to LEB in PEB"
+ depends on SPL_UBI
+ help
+ The offset in bytes to the LEB within a PEB.
+
+config SPL_UBI_INFO_ADDR
+ hex "Address to place UBI scan info"
+ depends on SPL_UBI
+ help
+ Address for ubispl to place the scan info. Read README.ubispl to
+ determine the required size
+
+config SPL_UBI_VOL_IDS
+ int "Maximum volume id"
+ depends on SPL_UBI
+ help
+ The maximum volume id which can be loaded. Used for sizing the
+ scan data structure.
+
+config SPL_UBI_LOAD_MONITOR_ID
+ int "id of U-Boot volume"
+ depends on SPL_UBI
+ help
+ The UBI volume id from which to load U-Boot
+
+config SPL_UBI_LOAD_MONITOR_VOLNAME
+ string "volume name of U-Boot volume"
+ depends on SPL_UBI_LOAD_BY_VOLNAME
+ help
+ The UBI volume name from which to load U-Boot
+
+config SPL_UBI_LOAD_KERNEL_ID
+ int "id of kernel volume"
+ depends on SPL_OS_BOOT && SPL_UBI
+ help
+ The UBI volume id from which to load the kernel
+
+config SPL_UBI_LOAD_ARGS_ID
+ int "id of kernel args volume"
+ depends on SPL_OS_BOOT && SPL_UBI
+ help
+ The UBI volume id from which to load the device tree
+
+config UBI_SPL_SILENCE_MSG
+ bool "silence UBI SPL messages"
+ default n
+ help
+ Disable messages from UBI SPL. This leaves warnings
+ and errors enabled.
+
+endif # if SPL_UBI
+
config SPL_NET_SUPPORT
bool "Support networking"
help
expense and power consumption. This enables loading from SATA
using a configured device.
+config SPL_SATA_RAW_U_BOOT_USE_SECTOR
+ bool "SATA raw mode: by sector"
+ depends on SPL_SATA_SUPPORT
+ help
+ Use sector number for specifying U-Boot location on SATA disk in
+ raw mode.
+
+config SPL_SATA_RAW_U_BOOT_SECTOR
+ hex "Sector on the SATA disk to load U-Boot from"
+ depends on SPL_SATA_RAW_U_BOOT_USE_SECTOR
+ help
+ Sector on the SATA disk to load U-Boot from, when the SATA disk is being
+ used in raw mode. Units: SATA disk sectors (1 sector = 512 bytes).
+
config SPL_SERIAL_SUPPORT
bool "Support serial"
select SPL_PRINTF
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 SYS_SPI_U_BOOT_OFFS
+ hex "address of u-boot payload in SPI flash"
+ default 0x0
+ depends on SPL_SPI_LOAD || SPL_SPI_SUNXI
+ help
+ Address within SPI-Flash from where the u-boot payload is fetched
+ from.
+
config SPL_SPI_SUPPORT
bool "Support SPI drivers"
help
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.
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
config SPL_WATCHDOG_SUPPORT
bool "Support watchdog drivers"
+ imply SPL_WDT if !HW_WATCHDOG
help
Enable support for watchdog drivers in SPL. A watchdog is
typically a hardware peripheral which can reset the system when it
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
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 / platform / kernel / u-boot.git / blobdiff