| config SUPPORT_SPL |
| bool |
| |
| config SUPPORT_TPL |
| bool |
| |
| config SUPPORT_VPL |
| bool |
| |
| config SPL_DFU_NO_RESET |
| bool |
| |
| config SPL |
| bool "Enable SPL" |
| depends on SUPPORT_SPL |
| help |
| If you want to build SPL as well as the normal image, say Y. |
| |
| menu "SPL configuration options" |
| depends on SPL |
| |
| config SPL_FRAMEWORK |
| bool "Support SPL based upon the common SPL framework" |
| default y |
| help |
| Enable the SPL framework under common/spl/. This framework |
| supports MMC, NAND and YMODEM and other methods loading of U-Boot |
| and the Linux Kernel. If unsure, say Y. |
| |
| config SPL_FRAMEWORK_BOARD_INIT_F |
| bool "Define a generic function board_init_f" |
| depends on SPL_FRAMEWORK |
| help |
| Define a generic function board_init_f that: |
| - initialize the spl (spl_early_init) |
| - initialize the serial (preloader_console_init) |
| Unless you want to provide your own board_init_f, you should say Y. |
| |
| config SPL_SIZE_LIMIT |
| hex "Maximum size of SPL image" |
| default 0x11000 if ARCH_MX6 && !MX6_OCRAM_256KB |
| default 0x31000 if ARCH_MX6 && MX6_OCRAM_256KB |
| default 0x30000 if ARCH_MVEBU && ARMADA_32BIT |
| default 0x0 |
| 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 0x0 |
| 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_MAX_SIZE |
| hex "Maximum size of the SPL image, excluding BSS" |
| default 0x30000 if ARCH_MX6 && MX6_OCRAM_256KB |
| default 0x1b000 if AM33XX && !TI_SECURE_DEVICE |
| default 0x10000 if ARCH_MX6 && !MX6_OCRAM_256KB |
| default 0x7fa0 if SUNXI_SRAM_ADDRESS = 0x10000 |
| default 0x7fa0 if SUNXI_SRAM_ADDRESS = 0x20000 && !MACH_SUN50I_H616 |
| default 0xbfa0 if MACH_SUN50I_H616 |
| default 0x7000 if RCAR_GEN3 |
| default 0x5fa0 if SUNXI_SRAM_ADDRESS = 0x0 |
| default 0x10000 if ASPEED_AST2600 |
| default 0x27000 if IMX8MM && SPL_TEXT_BASE = 0x7E1000 |
| default 0x0 |
| help |
| Maximum size of the SPL image (text, data, rodata, and linker lists |
| sections), BSS excluded. When defined, the linker checks that the |
| actual size does not exceed it. |
| |
| config SPL_PAD_TO |
| hex "Offset to which the SPL should be padded before appending the SPL payload" |
| default 0x31000 if ARCH_MX6 && MX6_OCRAM_256KB |
| default 0x11000 if ARCH_MX7 || (ARCH_MX6 && !MX6_OCRAM_256KB) |
| default 0x10000 if ARCH_KEYSTONE |
| default 0x0 if ARCH_MTMIPS || ARCH_SUNXI |
| default TPL_MAX_SIZE if TPL_MAX_SIZE > SPL_MAX_SIZE |
| default SPL_MAX_SIZE |
| help |
| Image offset to which the SPL should be padded before appending the |
| SPL payload. By default, this is defined as CONFIG_SPL_MAX_SIZE, or 0 if |
| CONFIG_SPL_MAX_SIZE is undefined. CONFIG_SPL_PAD_TO must be either |
| 0, meaning to append the SPL payload without any padding, or >= |
| CONFIG_SPL_MAX_SIZE. |
| |
| config SPL_HAS_BSS_LINKER_SECTION |
| depends on SPL_FRAMEWORK |
| bool "Use a specific address for the BSS via the linker script" |
| default y if ARCH_SUNXI || ARCH_MX6 || ARCH_OMAP2PLUS || MIPS || RISCV || ARCH_ZYNQMP |
| |
| config SPL_BSS_START_ADDR |
| hex "Link address for the BSS within the SPL binary" |
| depends on SPL_HAS_BSS_LINKER_SECTION |
| default 0x88200000 if (ARCH_MX6 && (MX6SX || MX6SL || MX6UL || MX6ULL)) || ARCH_MX7 |
| default 0x18200000 if ARCH_MX6 && !(MX6SX || MX6SL || MX6UL || MX6ULL) |
| default 0x80a00000 if ARCH_OMAP2PLUS |
| default 0x81f80000 if ARCH_SUNXI && MACH_SUNIV |
| default 0x4ff80000 if ARCH_SUNXI && !(MACH_SUN9I || MACH_SUNIV) |
| default 0x2ff80000 if ARCH_SUNXI && MACH_SUN9I |
| default 0x1000 if ARCH_ZYNQMP |
| |
| choice |
| prompt "Enforce SPL BSS limit" |
| depends on !PPC |
| default SPL_BSS_LIMIT |
| help |
| In some platforms we only want to enforce a limit on the size of the |
| BSS in memory. On other platforms we need to enforce a limit on the |
| whole of the memory allocation as we're strictly limited to a small |
| typically non-DRAM location. Finally, other platforms do not enforce |
| a memory limit within SPL. |
| |
| config SPL_NO_BSS_LIMIT |
| bool "Do not enforce a build time limit on the size of the BSS" |
| |
| config SPL_BSS_LIMIT |
| bool "Enforce a limit on the size of the BSS only" |
| |
| config SPL_FOOTPRINT_LIMIT |
| bool "Enforce a limit on the whole of memory allocated to SPL, BSS included" |
| |
| endchoice |
| |
| config SPL_BSS_MAX_SIZE |
| hex "Maximum size in memory allocated to the SPL BSS" |
| depends on SPL_BSS_LIMIT |
| default 0x100000 if ARCH_MX6 || RISCV |
| default 0x80000 if ARCH_OMAP2PLUS || ARCH_SUNXI |
| help |
| When non-zero, the linker checks that the actual memory used by SPL |
| from __bss_start to __bss_end does not exceed it. |
| |
| config SPL_MAX_FOOTPRINT |
| hex "Maximum size in memory allocated to the SPL, BSS included" |
| depends on SPL_FOOTPRINT_LIMIT |
| help |
| When non-zero, the linker checks that the actual memory used by SPL |
| from _start to __bss_end does not exceed it. |
| |
| 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. |
| |
| config SPL_SHOW_ERRORS |
| bool "Show more information when something goes wrong" |
| depends on SPL_LIBCOMMON_SUPPORT |
| help |
| This enabled more verbose error messages and checking when something |
| goes wrong in SPL. For example, it shows the error code when U-Boot |
| cannot be located. This can help to diagnose the problem and figure |
| out a fix, particularly during development. |
| |
| This adds a small amount to SPL code size, perhaps 100 bytes. |
| |
| config SPL_BINMAN_SYMBOLS |
| bool "Declare binman symbols in SPL" |
| depends on SPL_FRAMEWORK && BINMAN |
| default y |
| help |
| This enables use of symbols in SPL which refer to other entries in |
| the same binman image as the SPL. These can be declared with the |
| binman_sym_declare(type, entry, prop) macro and accessed by the |
| binman_sym(type, entry, prop) macro defined in binman_sym.h. |
| |
| See tools/binman/binman.rst for a detailed explanation. |
| |
| config SPL_BINMAN_UBOOT_SYMBOLS |
| bool "Declare binman symbols for U-Boot phases in SPL" |
| depends on SPL_BINMAN_SYMBOLS |
| default n if ARCH_IMX8M || ARCH_IMX9 |
| default y |
| help |
| This enables use of symbols in SPL which refer to U-Boot phases, |
| enabling SPL to obtain the location and size of its next phase simply |
| by calling spl_get_image_pos() and spl_get_image_size(). |
| |
| For this to work, you must have all U-Boot phases in the same binman |
| image, so binman can update SPL with the locations of everything. |
| |
| source "common/spl/Kconfig.nxp" |
| |
| 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). |
| |
| config SPL_HANDOFF |
| bool "Pass hand-off information from SPL to U-Boot proper" |
| depends on HANDOFF && SPL_BLOBLIST |
| 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/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds" if MACH_SUNIV |
| default "arch/arm/cpu/armv7/sunxi/u-boot-spl.lds" if ARCH_SUNXI && !MACH_SUNIV && !ARM64 |
| default "arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds" if (ARCH_MX23 || ARCH_MX28) && !SPL_FRAMEWORK |
| default "arch/arm/cpu/arm1136/u-boot-spl.lds" if CPU_ARM1136 |
| default "arch/arm/cpu/armv8/u-boot-spl.lds" if ARCH_LS1043A || ARCH_LS1046A || ARCH_LS2080A |
| default "arch/arm/cpu/armv8/u-boot-spl.lds" if ARM64 |
| default "arch/arm/mach-at91/arm926ejs/u-boot-spl.lds" if ARCH_AT91 && CPU_ARM926EJS |
| default "arch/arm/mach-at91/armv7/u-boot-spl.lds" if ARCH_AT91 && CPU_V7A |
| default "arch/arm/mach-omap2/u-boot-spl.lds" if ARCH_MX6 || ARCH_OMAP2PLUS || (ARCH_K3 && !ARM64) |
| default "arch/arm/mach-zynq/u-boot-spl.lds" if ARCH_ZYNQ |
| default "board/samsung/common/exynos-uboot-spl.lds" if ARCH_EXYNOS5 || ARCH_EXYNOS4 |
| default "board/davinci/da8xxevm/u-boot-spl-da850evm.lds" if ARCH_DAVINCI |
| default "arch/\$(ARCH)/cpu/u-boot-spl.lds" |
| help |
| The SPL stage will usually require a different linker-script |
| (as it runs from a different memory region) than the regular |
| 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 0x40200000 if OMAP34XX |
| default 0x402F4000 if AM43XX |
| default 0x402F0400 if AM33XX |
| default 0x40301350 if OMAP54XX |
| default 0x10060 if MACH_SUN50I || MACH_SUN50I_H5 || MACH_SUN9I |
| default 0x20060 if SUN50I_GEN_H6 || SUNXI_GEN_NCAT2 |
| default 0x00060 if ARCH_SUNXI |
| default 0xfffc0000 if ARCH_ZYNQMP |
| default 0x0 |
| help |
| The address in memory that SPL will be running from. |
| |
| config SPL_SOC_INIT |
| bool "Call SoC-specific initialization in SPL" |
| help |
| If this option is enabled, U-Boot will call the function |
| spl_soc_init() from board_init_r(). This function should be |
| provided by the SoC vendor. |
| |
| config SPL_BOARD_INIT |
| bool "Call board-specific initialization in SPL" |
| help |
| If this option is enabled, U-Boot will call the function |
| spl_board_init() from board_init_r(). This function should be |
| provided by the board. |
| |
| config SPL_LOAD_BLOCK |
| bool |
| help |
| Support loading images from block devices. This adds a bl_len member |
| to struct spl_load_info. |
| |
| config SPL_BOOTROM_SUPPORT |
| bool "Support returning to the BOOTROM" |
| select SPL_LOAD_BLOCK if MACH_IMX |
| help |
| Some platforms (e.g. the Rockchip RK3368) provide support in their |
| ROM for loading the next boot-stage after performing basic setup |
| from the SPL stage. |
| |
| Enable this option, to return to the BOOTROM through the |
| BOOT_DEVICE_BOOTROM (or fall-through to the next boot device in the |
| boot device list, if not implemented for a given board) |
| |
| config SPL_BOOTCOUNT_LIMIT |
| bool "Support bootcount in SPL" |
| depends on SPL_ENV_SUPPORT && !TPL_BOOTCOUNT_LIMIT |
| help |
| On some boards, which use 'falcon' mode, it is necessary to check |
| and increment the number of boot attempts. Such boards do not |
| use proper U-Boot for normal boot flow and hence needs those |
| adjustments to be done in the SPL. |
| |
| config SPL_RAW_IMAGE_SUPPORT |
| bool "Support SPL loading and booting of RAW images" |
| default n if ARCH_MVEBU |
| default n if (ARCH_MX6 && (SPL_MMC || SPL_SATA)) |
| default y |
| depends on !TI_SECURE_DEVICE |
| help |
| SPL will support loading and booting a RAW image 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_FORMAT |
| bool "Support SPL loading and booting of Legacy images" |
| default n if ARCH_MVEBU |
| default y if !SPL_LOAD_FIT |
| depends on !TI_SECURE_DEVICE |
| 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_FORMAT |
| select SPL_CRC32 |
| 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_LOAD_IMX_CONTAINER |
| bool "Enable SPL loading and booting of i.MX8 Containers" |
| depends on SPL |
| help |
| Support booting U-Boot from an i.MX8 container image. If you are not |
| using i.MX8, say 'n'. |
| |
| config IMX_CONTAINER_CFG |
| string "i.MX8 Container config file" |
| depends on SPL && SPL_LOAD_IMX_CONTAINER |
| help |
| Specify the cfg file for generating the container image which will be |
| loaded by SPL. |
| |
| config SPL_SYS_MALLOC_SIMPLE |
| bool "Only use malloc_simple functions in the SPL" |
| help |
| Say Y here to only use the *_simple malloc functions from |
| malloc_simple.c, rather then using the versions from dlmalloc.c; |
| this will make the SPL binary smaller at the cost of more heap |
| usage as the *_simple malloc functions do not re-use free-ed mem. |
| |
| config SPL_SHARES_INIT_SP_ADDR |
| bool "SPL and U-Boot use the same initial stack pointer location" |
| depends on (ARM || ARCH_JZ47XX || MICROBLAZE || RISCV) && SPL_FRAMEWORK |
| default n if ARCH_SUNXI || ARCH_MX6 || ARCH_MX7 |
| default y |
| help |
| In many cases, we can use the same initial stack pointer address for |
| both SPL and U-Boot itself. If you need to specify a different address |
| however, say N here and then set a different value in CONFIG_SPL_STACK. |
| |
| config SPL_STACK |
| hex "Initial stack pointer location" |
| depends on (ARM || ARCH_JZ47XX || MICROBLAZE || RISCV) && \ |
| SPL_FRAMEWORK || ROCKCHIP_RK3036 |
| depends on !SPL_SHARES_INIT_SP_ADDR |
| default 0x946bb8 if ARCH_MX7 |
| default 0x93ffb8 if ARCH_MX6 && MX6_OCRAM_256KB |
| default 0x91ffb8 if ARCH_MX6 && !MX6_OCRAM_256KB |
| default 0x118000 if MACH_SUN50I_H6 |
| default 0x52a00 if MACH_SUN50I_H616 |
| default 0x40000 if MACH_SUN8I_R528 |
| default 0x54000 if MACH_SUN50I || MACH_SUN50I_H5 |
| default 0x18000 if MACH_SUN9I |
| default 0x8000 if ARCH_SUNXI |
| help |
| Address of the start of the stack SPL will use before SDRAM is |
| initialized. |
| |
| config SPL_STACK_R |
| bool "Enable SDRAM location for SPL stack" |
| help |
| SPL starts off execution in SRAM and thus typically has only a small |
| stack available. Since SPL sets up DRAM while in its board_init_f() |
| function, it is possible for the stack to move there before |
| board_init_r() is reached. This option enables a special SDRAM |
| location for the SPL stack. U-Boot SPL switches to this after |
| board_init_f() completes, and before board_init_r() starts. |
| |
| config SPL_STACK_R_ADDR |
| depends on SPL_STACK_R |
| hex "SDRAM location for SPL stack" |
| default 0x82000000 if ARCH_OMAP2PLUS |
| help |
| Specify the address in SDRAM for the SPL stack. This will be set up |
| before board_init_r() is called. |
| |
| config SPL_STACK_R_MALLOC_SIMPLE_LEN |
| depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE |
| hex "Size of malloc_simple heap after switching to DRAM SPL stack" |
| default 0x400000 if ARCH_K3 && ARM64 |
| default 0x200000 if ARCH_K3 && CPU_V7R |
| default 0x100000 |
| help |
| Specify the amount of the stack to use as memory pool for |
| malloc_simple after switching the stack to DRAM. This may be set |
| to give board_init_r() a larger heap then the initial heap in |
| SRAM which is limited to SYS_MALLOC_F_LEN bytes. |
| |
| config SPL_SEPARATE_BSS |
| bool "BSS section is in a different memory region from text" |
| help |
| Some platforms need a large BSS region in SPL and can provide this |
| because RAM is already set up. In this case BSS can be moved to RAM. |
| This option should then be enabled so that the correct device tree |
| 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_SYS_MALLOC |
| bool "Enable malloc pool in SPL" |
| depends on SPL_FRAMEWORK |
| |
| config SPL_HAS_CUSTOM_MALLOC_START |
| bool "For the SPL malloc pool, define a custom starting address" |
| depends on SPL_SYS_MALLOC |
| |
| config SPL_CUSTOM_SYS_MALLOC_ADDR |
| hex "SPL malloc addr" |
| depends on SPL_HAS_CUSTOM_MALLOC_START |
| |
| config SPL_SYS_MALLOC_SIZE |
| hex "Size of the SPL malloc pool" |
| depends on SPL_SYS_MALLOC |
| default 0x100000 |
| |
| config SPL_READ_ONLY |
| bool |
| depends on SPL_OF_PLATDATA |
| # Bind cannot be supported because the udevice structs are in read-only |
| # memory so we cannot update the linked lists. |
| select SPL_OF_PLATDATA_NO_BIND |
| select SPL_OF_PLATDATA_RT |
| help |
| Some platforms (e.g. x86 Apollo Lake) load SPL into a read-only |
| section of memory. This means that of-platdata must make a copy (in |
| writeable memory) of anything it wants to modify, such as |
| device-private data. |
| |
| 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 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 |
| If this option is enabled, U-Boot will call the function |
| spl_display_print() immediately after displaying the SPL console |
| banner ("U-Boot SPL ..."). This function should be provided by |
| the board. |
| |
| config SPL_SYS_MMCSD_RAW_MODE |
| bool |
| help |
| Support booting from an MMC without a filesystem. |
| |
| config SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR |
| bool "MMC raw mode: by sector" |
| default y if ARCH_SUNXI || ARCH_DAVINCI || ARCH_UNIPHIER || \ |
| ARCH_MX6 || ARCH_MX7 || \ |
| ARCH_ROCKCHIP || ARCH_MVEBU || ARCH_SOCFPGA || \ |
| ARCH_AT91 || ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || \ |
| OMAP54XX || AM33XX || AM43XX || \ |
| TARGET_SIFIVE_UNLEASHED || TARGET_SIFIVE_UNMATCHED |
| select SPL_LOAD_BLOCK if SPL_MMC |
| select SPL_SYS_MMCSD_RAW_MODE if SPL_MMC |
| help |
| Use sector number for specifying U-Boot location on MMC/SD in |
| raw mode. |
| |
| config SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR |
| hex "Address on the MMC to load U-Boot from" |
| depends on SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR |
| default 0x40 if ARCH_SUNXI |
| default 0x75 if ARCH_DAVINCI |
| default 0x8a if ARCH_MX6 || ARCH_MX7 |
| default 0x100 if ARCH_UNIPHIER |
| default 0x0 if ARCH_MVEBU |
| default 0x200 if ARCH_SOCFPGA || ARCH_AT91 |
| default 0x300 if ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || \ |
| OMAP54XX || AM33XX || AM43XX || ARCH_K3 |
| default 0x4000 if ARCH_ROCKCHIP |
| default 0x822 if TARGET_SIFIVE_UNLEASHED || TARGET_SIFIVE_UNMATCHED |
| help |
| Address on the MMC to load U-Boot from, when the MMC is being used |
| in raw mode. Units: MMC sectors (1 sector = 512 bytes). |
| |
| config SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET |
| hex "U-Boot main hardware partition image offset" |
| depends on SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR |
| default 0x10 if ARCH_SUNXI |
| default 0x0 |
| help |
| On some platforms SPL location depends on hardware partition. The ROM |
| code skips the MBR sector when loading SPL from main hardware data |
| partition. This adds offset to the main U-Boot image. Set this symbol |
| to the number of skipped sectors. |
| |
| If unsure, leave the default. |
| |
| config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION |
| bool "MMC Raw mode: by partition" |
| select SPL_LOAD_BLOCK if SPL_MMC |
| select SPL_SYS_MMCSD_RAW_MODE if SPL_MMC |
| help |
| Use a partition for loading U-Boot when using MMC/SD in raw mode. |
| |
| config SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION |
| hex "Partition to use to load U-Boot from" |
| depends on SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION |
| default 1 |
| help |
| Partition on the MMC to load U-Boot from when the MMC is being |
| used in raw mode |
| |
| config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE |
| bool "MMC raw mode: by partition type" |
| depends on DOS_PARTITION && SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION |
| help |
| Use partition type for specifying U-Boot partition on MMC/SD in |
| raw mode. U-Boot will be loaded from the first partition of this |
| type to be found. |
| |
| config SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE |
| hex "Partition Type on the MMC to load U-Boot from" |
| depends on SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE |
| help |
| Partition Type on the MMC to load U-Boot from, when the MMC is being |
| used in raw mode. |
| |
| config SUPPORT_EMMC_BOOT_OVERRIDE_PART_CONFIG |
| bool "Override eMMC EXT_CSC_PART_CONFIG by user defined partition" |
| depends on SUPPORT_EMMC_BOOT |
| help |
| eMMC boot partition is normally configured by the bits of the EXT_CSD |
| register (EXT_CSC_PART_CONFIG), BOOT_PARTITION_ENABLE field. In some |
| cases it might be required in SPL to load the image from different |
| partition than the partition selected by EXT_CSC_PART_CONFIG register. |
| Enable this option if you intend to use an eMMC boot partition other |
| then selected via EXT_CSC_PART_CONFIG register and specify the custom |
| partition number by the CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION |
| option. |
| |
| config SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION |
| int "Number of the eMMC boot partition to use" |
| depends on SUPPORT_EMMC_BOOT_OVERRIDE_PART_CONFIG |
| default 1 |
| help |
| eMMC boot partition number to use when the eMMC in raw mode and |
| the eMMC EXT_CSC_PART_CONFIG selection should be overridden in SPL |
| by user defined partition number. |
| |
| config SPL_FIT_IMAGE_TINY |
| bool "Remove functionality from SPL FIT loading to reduce size" |
| depends on SPL_FIT |
| default y if ARCH_IMX8M || ARCH_IMX9 || ARCH_SUNXI |
| 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 skips the recording of each loaded payload |
| (i.e. loadable) into the FDT (modifying the loaded FDT to |
| ensure this information is available to the next image |
| invoked). |
| |
| config SPL_CACHE |
| bool "Support CACHE drivers" |
| help |
| Enable CACHE drivers in SPL. These drivers can keep data so that |
| future requests for that data can be served faster. Enable this option |
| to build the drivers in drivers/cache as part of an SPL build. |
| |
| config SPL_CPU |
| bool "Support CPU drivers" |
| help |
| Enable this to support CPU drivers in SPL. These drivers can set |
| up CPUs and provide information about them such as the model and |
| name. This can be useful in SPL since setting up the CPUs earlier |
| may improve boot performance. Enable this option to build the |
| drivers in drivers/cpu as part of an SPL build. |
| |
| config SPL_CRYPTO |
| bool "Support crypto drivers" |
| help |
| Enable crypto drivers in SPL. These drivers can be used to |
| accelerate secure boot processing in secure applications. Enable |
| this option to build the drivers in drivers/crypto as part of an |
| SPL build. |
| |
| config SPL_DMA |
| bool "Support DMA drivers" |
| help |
| Enable DMA (direct-memory-access) drivers in SPL. These drivers |
| can be used to handle memory-to-peripheral data transfer without |
| the CPU moving the data. Enable this option to build the drivers |
| in drivers/dma as part of an SPL build. |
| |
| config SPL_DRIVERS_MISC |
| bool "Support misc drivers" |
| help |
| Enable miscellaneous drivers in SPL. These drivers perform various |
| tasks that don't fall nicely into other categories, Enable this |
| option to build the drivers in drivers/misc as part of an SPL |
| build, for those that support building in SPL (not all drivers do). |
| |
| config SPL_ENV_SUPPORT |
| bool "Support an environment" |
| help |
| Enable environment support in SPL. The U-Boot environment provides |
| a number of settings (essentially name/value pairs) which can |
| control many aspects of U-Boot's operation. Normally this is not |
| needed in SPL as it has a much simpler task with less |
| configuration. But some boards use this to support 'Falcon' boot |
| on EXT2 and FAT, where SPL boots directly into Linux without |
| starting U-Boot first. Enabling this option will make env_get() |
| and env_set() available in SPL. |
| |
| config SPL_SAVEENV |
| bool "Support save environment" |
| depends on SPL_ENV_SUPPORT |
| select SPL_MMC_WRITE if ENV_IS_IN_MMC |
| help |
| Enable save environment support in SPL after setenv. By default |
| the saveenv option is not provided in SPL, but some boards need |
| this support in 'Falcon' boot, where SPL need to boot from |
| different images based on environment variable set by OS. For |
| example OS may set "reboot_image" environment variable to |
| "recovery" inorder to boot recovery image by SPL. The SPL read |
| "reboot_image" and act accordingly and change the reboot_image |
| to default mode using setenv and save the environment. |
| |
| config SPL_ETH |
| bool "Support Ethernet" |
| depends on SPL_ENV_SUPPORT |
| depends on SPL_NET |
| help |
| Enable access to the network subsystem and associated Ethernet |
| drivers in SPL. This permits SPL to load U-Boot over an Ethernet |
| link rather than from an on-board peripheral. Environment support |
| is required since the network stack uses a number of environment |
| variables. See also SPL_NET. |
| |
| config SPL_FS_EXT4 |
| bool "Support EXT filesystems" |
| select SPL_CRC16 if EXT4_WRITE |
| help |
| Enable support for EXT2/3/4 filesystems with SPL. This permits |
| U-Boot (or Linux in Falcon mode) to be loaded from an EXT |
| filesystem from within SPL. Support for the underlying block |
| device (e.g. MMC or USB) must be enabled separately. |
| |
| config SPL_FS_SQUASHFS |
| bool "Support SquashFS filesystems" |
| select FS_SQUASHFS |
| help |
| Enable support for SquashFS filesystems with SPL. This permits |
| U-Boot (or Linux in Falcon mode) to be loaded from a SquashFS |
| filesystem from within SPL. Support for the underlying block |
| device (e.g. MMC or USB) must be enabled separately. |
| |
| config SPL_FS_FAT |
| bool "Support FAT filesystems" |
| select FS_FAT |
| help |
| Enable support for FAT and VFAT filesystems with SPL. This |
| permits U-Boot (or Linux in Falcon mode) to be loaded from a FAT |
| filesystem from within SPL. Support for the underlying block |
| device (e.g. MMC or USB) must be enabled separately. |
| |
| config SPL_FS_FAT_DMA_ALIGN |
| bool "Use DMA-aligned buffers with FAT" |
| depends on SPL_FS_FAT |
| select SPL_LOAD_BLOCK |
| default y if SPL_LOAD_FIT |
| help |
| The FAT filesystem driver tries to ensure that the reads it issues to |
| the block subsystem use DMA-aligned buffers. If the supplied buffer is |
| not DMA-aligned, the FAT driver will use a bounce-buffer and read |
| block-by-block. This is separate from the bounce-buffer used by the |
| block subsystem (CONFIG_BOUNCE_BUFFER). |
| |
| Enable this config to align buffers passed to the FAT filesystem |
| driver. This will speed up reads, but will increase the size of U-Boot |
| by around 60 bytes. |
| |
| config SPL_FS_LOAD_PAYLOAD_NAME |
| string "File to load for U-Boot from the filesystem" |
| depends on SPL_FS_EXT4 || SPL_FS_FAT || SPL_FS_SQUASHFS || SPL_SEMIHOSTING |
| default "tispl.bin" if SYS_K3_SPL_ATF |
| default "u-boot.itb" if SPL_LOAD_FIT |
| default "u-boot.img" |
| help |
| Filename to read to load U-Boot when reading from filesystem. |
| |
| config SPL_FS_LOAD_KERNEL_NAME |
| string "File to load for the OS kernel from the filesystem" |
| depends on (SPL_FS_EXT4 || SPL_FS_FAT || SPL_FS_SQUASHFS) && SPL_OS_BOOT |
| default "uImage" |
| help |
| Filename to read to load for the OS kernel when reading from the |
| filesystem. |
| |
| config SPL_FS_LOAD_ARGS_NAME |
| string "File to load for the OS kernel argument parameters from the filesystem" |
| depends on (SPL_FS_EXT4 || SPL_FS_FAT || SPL_FS_SQUASHFS) && SPL_OS_BOOT |
| default "args" |
| help |
| Filename to read to load for the OS kernel argument parameters from |
| the filesystem. |
| |
| 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 |
| bool "Support FPGAs" |
| help |
| Enable support for FPGAs in SPL. Field-programmable Gate Arrays |
| provide software-configurable hardware which is typically used to |
| implement peripherals (such as UARTs, LCD displays, MMC) or |
| accelerate custom processing functions, such as image processing |
| or machine learning. Sometimes it is useful to program the FPGA |
| as early as possible during boot, and this option can enable that |
| within SPL. |
| |
| config SPL_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 |
| 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 SPL to enable a 'sign-of-life' LED, |
| for example. Enable this option to build the drivers in |
| drivers/gpio as part of an SPL build. |
| |
| config SPL_I2C |
| bool "Support I2C" |
| help |
| Enable support for the I2C (Inter-Integrated Circuit) bus in SPL. |
| I2C works with a clock and data line which can be driven by a |
| one or more masters or slaves. It is a fairly complex bus but is |
| widely used as it only needs two lines for communication. Speeds of |
| 400kbps are typical but up to 3.4Mbps is supported by some |
| hardware. I2C can be useful in SPL to configure power management |
| ICs (PMICs) before raising the CPU clock speed, for example. |
| Enable this option to build the drivers in drivers/i2c as part of |
| an SPL build. |
| |
| config SPL_LIBCOMMON_SUPPORT |
| bool "Support common libraries" |
| help |
| Enable support for common U-Boot libraries within SPL. These |
| libraries include common code to deal with U-Boot images, |
| environment and USB, for example. This option is enabled on many |
| boards. Enable this option to build the code in common/ as part of |
| an SPL build. |
| |
| 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 |
| used in MMC and USB sticks). Partitions provide a way for a disk |
| to be split up into separate regions, with a partition table placed |
| at the start or end which describes the location and size of each |
| 'partition'. These partitions are typically uses as individual block |
| devices, typically with an EXT2 or FAT filesystem in each. This |
| option enables whatever partition support has been enabled in |
| U-Boot to also be used in SPL. It brings in the code in disk/. |
| |
| config SPL_LIBGENERIC_SUPPORT |
| bool "Support generic libraries" |
| help |
| Enable support for generic U-Boot libraries within SPL. These |
| libraries include generic code to deal with device tree, hashing, |
| printf(), compression and the like. This option is enabled on many |
| boards. Enable this option to build the code in lib/ as part of an |
| SPL build. |
| |
| config SPL_DM_MAILBOX |
| bool "Support Mailbox" |
| depends on SPL_DM |
| help |
| Enable support for Mailbox within SPL. This enable the inter |
| processor communication protocols tobe used within SPL. Enable |
| this option to build the drivers in drivers/mailbox as part of |
| SPL build. |
| |
| config SPL_MEMORY |
| bool "Support Memory controller drivers" |
| help |
| Enable support for Memory Controller drivers within SPL. |
| These devices provide Memory bus interface to various devices like |
| SRAM, Ethernet adapters, FPGAs, etc. |
| |
| config SPL_MMC |
| bool "Support MMC" |
| depends on MMC |
| help |
| Enable support for MMC (Multimedia Card) within SPL. This enables |
| the MMC protocol implementation and allows any enabled drivers to |
| be used within SPL. MMC can be used with or without disk partition |
| support depending on the application (SPL_LIBDISK_SUPPORT). Enable |
| this option to build the drivers in drivers/mmc as part of an SPL |
| build. |
| |
| config SYS_MMCSD_FS_BOOT |
| bool "MMC FS Boot mode" |
| depends on SPL_MMC |
| default y if !ARCH_MVEBU |
| help |
| Enable MMC FS Boot mode. Partition is selected by option |
| SYS_MMCSD_FS_BOOT_PARTITION. |
| |
| config SYS_MMCSD_FS_BOOT_PARTITION |
| int "MMC Boot Partition" |
| depends on SYS_MMCSD_FS_BOOT |
| default 1 |
| help |
| Partition on the MMC to load U-Boot from when the MMC is being |
| used in fs mode. |
| Use -1 as a special value to use the first bootable partition. |
| |
| config SPL_MMC_TINY |
| bool "Tiny MMC framework in SPL" |
| depends on SPL_MMC |
| 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 |
| help |
| Enable write access to MMC and SD Cards in SPL |
| |
| |
| config SPL_MPC8XXX_INIT_DDR |
| bool "Support MPC8XXX DDR init" |
| help |
| Enable support for DDR-SDRAM (double-data-rate synchronous dynamic |
| random-access memory) on the MPC8XXX family within SPL. This |
| allows DRAM to be set up before loading U-Boot into that DRAM, |
| where it can run. |
| |
| config SPL_MTD |
| bool "Support MTD drivers" |
| help |
| Enable support for MTD (Memory Technology Device) within SPL. MTD |
| provides a block interface over raw NAND and can also be used with |
| SPI flash. This allows SPL to load U-Boot from supported MTD |
| devices. See SPL_NAND_SUPPORT and SPL_ONENAND_SUPPORT for how |
| to enable specific MTD drivers. |
| |
| config SPL_MUSB_NEW |
| bool "Support new Mentor Graphics USB" |
| help |
| Enable support for Mentor Graphics USB in SPL. This is a new |
| driver used by some boards. Enable this option to build |
| the drivers in drivers/usb/musb-new as part of an SPL build. The |
| old drivers are in drivers/usb/musb. |
| |
| config SPL_NAND_SUPPORT |
| bool "Support NAND flash" |
| select SPL_LOAD_BLOCK |
| help |
| Enable support for NAND (Negative AND) flash in SPL. NAND flash |
| can be used to allow SPL to load U-Boot from supported devices. |
| This enables the drivers in drivers/mtd/nand/raw as part of an SPL |
| build. |
| |
| config SPL_NAND_RAW_ONLY |
| bool "Support to boot only raw u-boot.bin images" |
| depends on SPL_NAND_SUPPORT |
| help |
| Use this only if you need to save space. |
| |
| config SPL_NAND_DRIVERS |
| bool "Use standard NAND driver" |
| help |
| SPL uses normal NAND drivers, not minimal drivers. |
| |
| config SPL_NAND_ECC |
| bool "Include standard ECC in SPL" |
| |
| config SPL_NAND_SOFTECC |
| bool "Use software ECC in SPL" |
| depends on SPL_NAND_ECC |
| |
| config SPL_NAND_SIMPLE |
| bool "Support simple NAND drivers in SPL" |
| help |
| Support for NAND boot using simple NAND drivers that |
| expose the cmd_ctrl() interface. |
| |
| config SPL_NAND_BASE |
| depends on SPL_NAND_SUPPORT |
| bool "Use Base NAND Driver" |
| help |
| Include nand_base.c in the SPL. |
| |
| config SPL_NAND_IDENT |
| depends on SPL_NAND_BASE |
| bool "Use chip ID to identify NAND flash" |
| help |
| SPL uses the chip ID list to identify the NAND flash. |
| |
| config SPL_UBI |
| bool "Support UBI" |
| help |
| Enable support for loading payloads from UBI. See |
| README.ubispl for more info. |
| |
| menu "UBI configuration for SPL" |
| depends on 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" |
| 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" |
| help |
| The maximum physical erase block size. |
| |
| config SPL_UBI_MAX_PEBS |
| int "Maximum number of PEBs" |
| 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" |
| 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" |
| |
| config SPL_UBI_LEB_START |
| int "Offset to LEB in PEB" |
| help |
| The offset in bytes to the LEB within a PEB. |
| |
| config SPL_UBI_INFO_ADDR |
| hex "Address to place UBI scan info" |
| 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" |
| 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" |
| 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 |
| 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 |
| help |
| The UBI volume id from which to load the device tree |
| |
| config UBI_SPL_SILENCE_MSG |
| bool "silence UBI SPL messages" |
| help |
| Disable messages from UBI SPL. This leaves warnings |
| and errors enabled. |
| |
| endmenu |
| |
| config SPL_DM_SPI |
| bool "Support SPI DM drivers in SPL" |
| depends on SPL_DM |
| help |
| Enable support for SPI DM drivers in SPL. |
| |
| config SPL_DM_SPI_FLASH |
| bool "Support SPI DM FLASH drivers in SPL" |
| depends on SPL_DM |
| help |
| Enable support for SPI DM flash drivers in SPL. |
| |
| config SPL_NET |
| bool "Support networking" |
| help |
| Enable support for network devices (such as Ethernet) in SPL. |
| This permits SPL to load U-Boot over a network link rather than |
| from an on-board peripheral. Environment support is required since |
| the network stack uses a number of environment variables. See also |
| SPL_ETH. |
| |
| config SPL_NET_VCI_STRING |
| string "BOOTP Vendor Class Identifier string sent by SPL" |
| depends on SPL_NET |
| help |
| As defined by RFC 2132 the vendor class identifier field can be |
| sent by the client to identify the vendor type and configuration |
| of a client. This is often used in practice to allow for the DHCP |
| server to specify different files to load depending on if the ROM, |
| SPL or U-Boot itself makes the request |
| |
| config SPL_NO_CPU_SUPPORT |
| def_bool y |
| depends on (ARCH_MX23 || ARCH_MX28) && !SPL_FRAMEWORK |
| help |
| This is specific to the ARM926EJ-S CPU. It disables the standard |
| start.S start-up code, presumably so that a replacement can be |
| used on that CPU. You should not enable it unless you know what |
| you are doing. |
| |
| config SPL_NOR_SUPPORT |
| bool "Support NOR flash" |
| help |
| Enable support for loading U-Boot from memory-mapped NOR (Negative |
| OR) flash in SPL. NOR flash is slow to write but fast to read, and |
| a memory-mapped device makes it very easy to access. Loading from |
| NOR is typically achieved with just a memcpy(). |
| |
| config SPL_XIP_SUPPORT |
| bool "Support XIP" |
| help |
| Enable support for execute in place of U-Boot or kernel image. There |
| is no need to copy image from flash to ram if flash supports execute |
| in place. Its very useful in systems having enough flash but not |
| enough ram to load the image. |
| |
| config SPL_ONENAND_SUPPORT |
| bool "Support OneNAND flash" |
| help |
| Enable support for OneNAND (Negative AND) flash in SPL. OneNAND is |
| a type of NAND flash and therefore can be used to allow SPL to |
| load U-Boot from supported devices. This enables the drivers in |
| drivers/mtd/onenand as part of an SPL build. |
| |
| config SPL_OS_BOOT |
| bool "Activate Falcon Mode" |
| depends on !TI_SECURE_DEVICE |
| help |
| Enable booting directly to an OS from SPL. |
| for more info read doc/README.falcon |
| |
| config SPL_PAYLOAD_ARGS_ADDR |
| hex "Address in memory to load 'args' file for Falcon Mode to" |
| depends on SPL_OS_BOOT || SPL_LOAD_FIT_OPENSBI_OS_BOOT |
| default 0x88000000 if ARCH_OMAP2PLUS |
| help |
| Address in memory where the 'args' file, typically a device tree |
| will be loaded in to memory. |
| |
| config SYS_NAND_SPL_KERNEL_OFFS |
| hex "Address in memory to load the OS file for Falcon mode to" |
| depends on SPL_OS_BOOT && SPL_NAND_SUPPORT |
| |
| config SYS_OS_BASE |
| hex "addr, where OS is found" |
| depends on SPL_OS_BOOT && SPL_NOR_SUPPORT |
| help |
| Specify the address, where the OS image is found, which |
| gets booted. |
| |
| config SPL_FALCON_BOOT_MMCSD |
| bool "Enable Falcon boot from MMC or SD media" |
| depends on SPL_OS_BOOT && SPL_MMC |
| select SPL_LOAD_BLOCK |
| select SPL_SYS_MMCSD_RAW_MODE |
| help |
| Select this if the Falcon mode OS image mode is on MMC or SD media. |
| |
| config SYS_MMCSD_RAW_MODE_KERNEL_SECTOR |
| hex "Falcon mode: Sector to load kernel uImage from MMC" |
| depends on SPL_FALCON_BOOT_MMCSD |
| help |
| When Falcon mode is used with an MMC or SD media, SPL needs to know |
| where to look for the kernel uImage. The image is expected to begin |
| at the raw MMC specified in this config. |
| Note that the Falcon mode image can also be a FIT, if FIT support is |
| enabled. |
| |
| config SYS_MMCSD_RAW_MODE_ARGS_SECTOR |
| hex "Falcon mode: Sector to load 'args' from MMC" |
| depends on SPL_FALCON_BOOT_MMCSD |
| help |
| When Falcon mode is used with an MMC or SD media, SPL needs to know |
| where to look for the OS 'args', typically a device tree. The |
| contents are expected to begin at the raw MMC specified in this config. |
| Note that if using a FIT image, this and the next option can be set to |
| 0x0. |
| |
| config SYS_MMCSD_RAW_MODE_ARGS_SECTORS |
| hex "Falcon mode: Number of sectors to load for 'args' from MMC" |
| depends on SPL_FALCON_BOOT_MMCSD && SYS_MMCSD_RAW_MODE_ARGS_SECTOR != 0x0 |
| |
| config SPL_PAYLOAD |
| string "SPL payload" |
| default "tpl/u-boot-with-tpl.bin" if TPL |
| default "u-boot.bin" |
| help |
| 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 |
| bool "Support PCI drivers" |
| help |
| Enable support for PCI in SPL. 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 an SPL build. |
| |
| config SPL_PCH |
| bool "Support PCH drivers" |
| help |
| Enable support for PCH (Platform Controller Hub) devices in SPL. |
| These are used to set up GPIOs and the SPI peripheral early in |
| boot. This enables the drivers in drivers/pch as part of an SPL |
| build. |
| |
| config SPL_POST_MEM_SUPPORT |
| bool "Support POST drivers" |
| help |
| Enable support for POST (Power-on Self Test) in SPL. POST is a |
| procedure that checks that the hardware (CPU or board) appears to |
| be functionally correctly. It is a sanity check that can be |
| performed before booting. This enables the drivers in post/drivers |
| as part of an SPL build. |
| |
| config SPL_DM_RESET |
| bool "Support reset drivers" |
| depends on SPL_DM |
| help |
| Enable support for reset control in SPL. |
| That can be useful in SPL to handle IP reset in driver, as in U-Boot, |
| by using the generic reset API provided by driver model. |
| This enables the drivers in drivers/reset as part of an SPL build. |
| |
| config SPL_POWER |
| bool "Support power drivers" |
| help |
| Enable support for power control in SPL. This includes support |
| for PMICs (Power-management Integrated Circuits) and some of the |
| features provided by PMICs. In particular, voltage regulators can |
| be used to enable/disable power and vary its voltage. That can be |
| useful in SPL to turn on boot peripherals and adjust CPU voltage |
| so that the clock speed can be increased. This enables the drivers |
| in drivers/power, drivers/power/pmic and drivers/power/regulator |
| as part of an SPL build. |
| |
| config SPL_POWER_DOMAIN |
| bool "Support power domain drivers" |
| select SPL_POWER |
| help |
| Enable support for power domain control in SPL. Many SoCs allow |
| power to be applied to or removed from portions of the SoC (power |
| domains). This may be used to save power. This API provides the |
| means to control such power management hardware. This enables |
| the drivers in drivers/power/domain as part of a SPL build. |
| |
| config SPL_RAM_SUPPORT |
| bool "Support booting from RAM" |
| default y if MICROBLAZE || ARCH_SOCFPGA || ARCH_TEGRA || ARCH_ZYNQ |
| help |
| Enable booting of an image in RAM. The image can be preloaded or |
| it can be loaded by SPL directly into RAM (e.g. using USB). |
| |
| config SPL_RAM_DEVICE |
| bool "Support booting from preloaded image in RAM" |
| depends on SPL_RAM_SUPPORT |
| default y if MICROBLAZE || ARCH_SOCFPGA || ARCH_TEGRA || ARCH_ZYNQ |
| help |
| Enable booting of an image already loaded in RAM. The image has to |
| be already in memory when SPL takes over, e.g. loaded by the boot |
| ROM. |
| |
| config SPL_REMOTEPROC |
| bool "Support REMOTEPROCS" |
| help |
| Enable support for REMOTEPROCs in SPL. This permits to load |
| a remote processor firmware in SPL. |
| |
| config SPL_RTC |
| bool "Support RTC drivers" |
| help |
| Enable RTC (Real-time Clock) support in SPL. 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 SPL |
| build. |
| |
| config SPL_SATA |
| bool "Support loading from SATA" |
| help |
| Enable support for SATA (Serial AT attachment) in SPL. This allows |
| use of SATA devices such as hard drives and flash drivers for |
| loading U-Boot. SATA is used in higher-end embedded systems and |
| can provide higher performance than MMC , at somewhat higher |
| expense and power consumption. This enables loading from SATA |
| using a configured device. |
| |
| config SYS_SATA_FAT_BOOT_PARTITION |
| int "Partition on the SATA disk to load U-Boot from" |
| depends on SPL_SATA && SPL_FS_FAT |
| default 1 |
| |
| config SPL_SATA_RAW_U_BOOT_USE_SECTOR |
| bool "SATA raw mode: by sector" |
| depends on SPL_SATA |
| default y if ARCH_MVEBU |
| 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 |
| default 0x1 if ARCH_MVEBU |
| 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_NVME |
| bool "NVM Express device support" |
| depends on SPL_BLK |
| select FS_LOADER |
| select SPL_BLK_FS |
| help |
| This option enables support for NVM Express devices. |
| It supports basic functions of NVMe (read/write). |
| |
| config SPL_NVME_PCI |
| bool "NVM Express PCI device support for SPL" |
| depends on SPL_PCI && SPL_NVME |
| help |
| This option enables support for NVM Express PCI devices. |
| This allows use of NVMe devices for loading u-boot. |
| |
| config SPL_NVME_BOOT_DEVICE |
| hex "NVMe boot device number" |
| depends on SPL_NVME |
| default 0x0 |
| |
| config SYS_NVME_BOOT_PARTITION |
| hex "NVMe boot partition number" |
| depends on SPL_NVME |
| default 0x1 |
| |
| config SPL_SERIAL |
| bool "Support serial" |
| select SPL_PRINTF |
| select SPL_STRTO |
| help |
| Enable support for serial in SPL. This allows use of a serial UART |
| for displaying messages while SPL is running. It also brings in |
| printf() and panic() functions. This should normally be enabled |
| unless there are space reasons not to. Even then, consider |
| enabling SPL_USE_TINY_PRINTF which is a small printf() version. |
| |
| config SPL_SPI |
| bool "Support SPI drivers" |
| help |
| Enable support for using SPI in SPL. This is used for connecting |
| to SPI flash for loading U-Boot. See SPL_SPI_FLASH_SUPPORT for |
| more details on that. The SPI driver provides the transport for |
| data between the SPI flash and the CPU. This option can be used to |
| enable SPI drivers that are needed for other purposes also, such |
| as a SPI PMIC. |
| |
| config SPL_SPI_FLASH_SUPPORT |
| bool "Support SPI flash drivers" |
| depends on SPL_SPI |
| help |
| Enable support for using SPI flash in SPL, and loading U-Boot from |
| SPI flash. SPI flash (Serial Peripheral Bus flash) is named after |
| the SPI bus that is used to connect it to a system. It is a simple |
| but fast bidirectional 4-wire bus (clock, chip select and two data |
| lines). This enables the drivers in drivers/mtd/spi as part of an |
| SPL build. This normally requires SPL_SPI. |
| |
| 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_FLASH_MTD |
| bool "Support for SPI flash MTD drivers in SPL" |
| help |
| Enable support for SPI flash MTD drivers in SPL. |
| |
| config SPL_SPI_LOAD |
| bool "Support loading from SPI flash" |
| 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 0x8000 if ARCH_SUNXI |
| 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_THERMAL |
| bool "Driver support for thermal devices" |
| help |
| Enable support for temperature-sensing devices. Some SoCs have on-chip |
| temperature sensors to permit warnings, speed throttling or even |
| automatic power-off when the temperature gets too high or low. Other |
| devices may be discrete but connected on a suitable bus. |
| |
| config SPL_WATCHDOG |
| 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 |
| 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_SERIAL |
| 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 SPL_ATF |
| bool "Support ARM Trusted Firmware" |
| depends on ARM64 |
| depends on SPL_LOAD_FIT && !SPL_FIT_IMAGE_TINY |
| help |
| ATF(ARM Trusted Firmware) is a component for ARM AArch64 which |
| is loaded by SPL (which is considered as BL2 in ATF terminology). |
| More detail at: https://github.com/ARM-software/arm-trusted-firmware |
| |
| config SPL_ATF_LOAD_IMAGE_V2 |
| bool "Use the new LOAD_IMAGE_V2 parameter passing" |
| depends on SPL_ATF |
| help |
| Some platforms use the newer LOAD_IMAGE_V2 parameter passing. |
| |
| If you want to load a bl31 image from the SPL and need the new |
| method, say Y. |
| |
| config SPL_ATF_NO_PLATFORM_PARAM |
| bool "Pass no platform parameter" |
| depends on SPL_ATF |
| help |
| While we expect to call a pointer to a valid FDT (or NULL) |
| as the platform parameter to an ATF, some ATF versions are |
| not U-Boot aware and have an insufficiently robust parameter |
| validation to gracefully reject a FDT being passed. |
| |
| If this option is enabled, the spl_atf os-type handler will |
| always pass NULL for the platform parameter. |
| |
| If your ATF is affected, say Y. |
| |
| config SPL_AM33XX_ENABLE_RTC32K_OSC |
| bool "Enable the RTC32K OSC on AM33xx based platforms" |
| depends on AM33XX |
| default y if AM33XX |
| help |
| Enable access to the AM33xx RTC and select the external 32kHz clock |
| source. |
| |
| config SPL_OPTEE_IMAGE |
| bool "Support OP-TEE Trusted OS image in SPL" |
| depends on ARM |
| depends on SPL_LOAD_FIT || SPL_LOAD_FIT_FULL |
| 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 SPL_OPENSBI |
| bool "Support RISC-V OpenSBI" |
| depends on RISCV && SPL_RISCV_MMODE && RISCV_SMODE |
| depends on SPL_LOAD_FIT && !SPL_FIT_IMAGE_TINY |
| help |
| OpenSBI is an open-source implementation of the RISC-V Supervisor Binary |
| Interface (SBI) specification. U-Boot supports the OpenSBI FW_DYNAMIC |
| firmware. It is loaded and started by U-Boot SPL. |
| |
| More details are available at https://github.com/riscv/opensbi and |
| https://github.com/riscv/riscv-sbi-doc |
| |
| config SPL_OPENSBI_LOAD_ADDR |
| hex "OpenSBI load address" |
| depends on SPL_OPENSBI |
| help |
| Load address of the OpenSBI binary. |
| |
| config SPL_OPENSBI_SCRATCH_OPTIONS |
| hex "Scratch options passed to OpenSBI" |
| default 0x1 |
| depends on SPL_OPENSBI |
| help |
| This bitmap of options is passed from U-Boot SPL to OpenSBI. |
| As of OpenSBI 1.3 the following bits are defined: |
| - SBI_SCRATCH_NO_BOOT_PRINTS = 0x1 (Disable prints during boot) |
| - SBI_SCRATCH_DEBUG_PRINTS = 0x2 (Enable runtime debug prints) |
| |
| config SPL_TARGET |
| string "Addtional build targets for 'make'" |
| default "spl/u-boot-spl.srec" if RCAR_GEN2 |
| default "spl/u-boot-spl.scif" if RCAR_GEN3 |
| default "" |
| help |
| On some platforms we need to have 'make' run additional build target |
| rules. If required on your platform, enter it here, otherwise leave blank. |
| |
| |
| config SPL_AT91_MCK_BYPASS |
| bool "Use external clock signal as a source of main clock for AT91 platforms" |
| depends on ARCH_AT91 |
| 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. |
| endmenu |
| |
| config TPL |
| depends on SUPPORT_TPL |
| bool "Enable TPL" |
| help |
| If you want to build TPL as well as the normal image and SPL, say Y. |
| |
| source "common/spl/Kconfig.tpl" |
| |
| config VPL |
| depends on SUPPORT_SPL |
| bool "Enable VPL" |
| help |
| If you want to build VPL as well as the normal image, TPL and SPL, |
| say Y. |
| |
| source "common/spl/Kconfig.vpl" |