| menu "TPL configuration options" |
| depends on TPL |
| |
| config TPL_SIZE_LIMIT |
| hex "Maximum size of TPL image" |
| default 0x0 |
| help |
| Specifies the maximum length of the U-Boot TPL image. |
| If this value is zero, it is ignored. |
| |
| config TPL_BINMAN_SYMBOLS |
| bool "Support binman symbols in TPL" |
| depends on TPL_FRAMEWORK && BINMAN |
| default y |
| help |
| This enables use of symbols in TPL which refer to other entries in |
| the same binman image as the TPL. 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 TPL_BINMAN_UBOOT_SYMBOLS |
| bool "Declare binman symbols for U-Boot phases in TPL" |
| depends on TPL_BINMAN_SYMBOLS |
| default n if ARCH_IMX8M || ARCH_IMX9 |
| default y |
| help |
| This enables use of symbols in TPL which refer to U-Boot phases, |
| enabling TPL 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 TPL with the locations of everything. |
| |
| config TPL_FRAMEWORK |
| bool "Support TPL based upon the common SPL framework" |
| default y if SPL_FRAMEWORK |
| help |
| Enable the SPL framework under common/spl/ for TPL builds. |
| This framework supports MMC, NAND and YMODEM and other methods |
| loading of U-Boot's SPL stage. If unsure, say Y. |
| |
| config TPL_BANNER_PRINT |
| bool "Enable output of the TPL banner 'U-Boot TPL ...'" |
| depends on DEBUG_UART && TPL_SERIAL |
| default y |
| help |
| If this option is enabled, TPL 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_HANDOFF |
| bool "Pass hand-off information from TPL to SPL and U-Boot proper" |
| depends on HANDOFF && TPL_BLOBLIST |
| 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 |
| 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 TPL_BOOTCOUNT_LIMIT |
| bool "Support bootcount in TPL" |
| depends on TPL_ENV_SUPPORT |
| help |
| If this option is enabled, the TPL will support bootcount. |
| For example, it may be useful to choose the device to boot. |
| |
| config TPL_SYS_MALLOC_SIMPLE |
| bool |
| prompt "Only use malloc_simple functions in the TPL" |
| 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 TPL binary smaller at the cost of more heap |
| usage as the *_simple malloc functions do not re-use free-ed mem. |
| |
| config TPL_SEPARATE_BSS |
| bool "BSS section is in a different memory region from text" |
| default y if SPL_SEPARATE_BSS |
| help |
| Some platforms need a large BSS region in TPL 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 TPL_LDSCRIPT |
| string "Linker script for the TPL stage" |
| 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 |
| U-Boot stage. Set this to the path of the linker-script to |
| be used for TPL. |
| |
| May be left empty to trigger the Makefile infrastructure to |
| fall back to the linker-script used for the SPL stage. |
| |
| config TPL_NEEDS_SEPARATE_STACK |
| bool "TPL needs a separate initial stack-pointer" |
| help |
| Enable, if the TPL stage should not inherit its initial |
| stack-pointer from the settings for the SPL stage. |
| |
| config TPL_POWER |
| bool "Support power drivers" |
| help |
| Enable support for power control in TPL. 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 TPL 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 TPL build. |
| |
| config TPL_TEXT_BASE |
| hex "Base address for the .text section of the TPL stage" |
| default 0x0 |
| help |
| The base address for the .text section of the TPL stage. |
| |
| config TPL_MAX_SIZE |
| hex "Maximum size (in bytes) for the TPL stage" |
| default 0x2e000 if ROCKCHIP_RK3399 |
| default 0x8000 if ROCKCHIP_RK3288 || ROCKCHIP_RV1126 |
| default 0x7000 if ROCKCHIP_RK322X || ROCKCHIP_RK3328 || ROCKCHIP_RK3368 |
| default 0x2800 if ROCKCHIP_PX30 |
| default 0x0 |
| help |
| The maximum size (in bytes) of the TPL stage. |
| |
| config TPL_STACK |
| hex "Address of the initial stack-pointer for the TPL stage" |
| depends on TPL_NEEDS_SEPARATE_STACK |
| help |
| The address of the initial stack-pointer for the TPL stage. |
| Usually this will be the (aligned) top-of-stack. |
| |
| config TPL_READ_ONLY |
| bool |
| depends on TPL_OF_PLATDATA |
| select TPL_OF_PLATDATA_NO_BIND |
| select TPL_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 TPL_BOOTROM_SUPPORT |
| bool "Support returning to the BOOTROM (from TPL)" |
| 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 TPL 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 TPL_CRC32 |
| bool "Support CRC32 in TPL" |
| default y if TPL_ENV_SUPPORT || TPL_BLOBLIST |
| help |
| 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 TPL_DRIVERS_MISC |
| bool "Support misc drivers in TPL" |
| help |
| Enable miscellaneous drivers in TPL. 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 TPL |
| build, for those that support building in TPL (not all drivers do). |
| |
| config TPL_ENV_SUPPORT |
| bool "Support an environment" |
| help |
| Enable environment support in TPL. See SPL_ENV_SUPPORT for details. |
| |
| config TPL_GPIO |
| 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 |
| bool "Support I2C" |
| help |
| Enable support for the I2C bus in TPL. See SPL_I2C for |
| details. |
| |
| config TPL_LIBCOMMON_SUPPORT |
| bool "Support common libraries" |
| help |
| Enable support for common U-Boot libraries within TPL. See |
| SPL_LIBCOMMON_SUPPORT for details. |
| |
| config TPL_LIBGENERIC_SUPPORT |
| bool "Support generic libraries" |
| help |
| Enable support for generic U-Boot libraries within TPL. See |
| SPL_LIBGENERIC_SUPPORT for details. |
| |
| config TPL_MPC8XXX_INIT_DDR |
| bool "Support MPC8XXX DDR init" |
| help |
| Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See |
| SPL_MPC8XXX_INIT_DDR for details. |
| |
| config TPL_MMC |
| bool "Support MMC" |
| depends on MMC |
| help |
| Enable support for MMC within TPL. See SPL_MMC for details. |
| |
| config TPL_NAND_SUPPORT |
| bool "Support NAND flash" |
| 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 |
| 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 |
| Enable booting of an image in RAM. The image can be preloaded or |
| it can be loaded by TPL directly into RAM (e.g. using USB). |
| |
| config TPL_RAM_DEVICE |
| bool "Support booting from preloaded image in RAM" |
| depends on TPL_RAM_SUPPORT |
| help |
| Enable booting of an image already loaded in RAM. The image has to |
| be already in memory when TPL takes over, e.g. loaded by the boot |
| ROM. |
| |
| config TPL_RTC |
| 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 |
| bool "Support serial" |
| select TPL_PRINTF |
| select TPL_STRTO |
| help |
| Enable support for serial in TPL. See SPL_SERIAL for |
| details. |
| |
| config TPL_SPI_FLASH_SUPPORT |
| bool "Support SPI flash drivers" |
| help |
| Enable support for using SPI flash in TPL. See SPL_SPI_FLASH_SUPPORT |
| for details. |
| |
| config TPL_SPI_FLASH_TINY |
| bool "Enable low footprint TPL SPI Flash support" |
| depends on TPL_SPI_FLASH_SUPPORT && !SPI_FLASH_BAR |
| default y if SPI_FLASH |
| help |
| Enable lightweight TPL SPI Flash support that supports just reading |
| data/images from flash. No support to write/erase flash. Enable |
| this if you have TPL size limitations and don't need full-fledged |
| SPI flash support. |
| |
| config TPL_SPI_LOAD |
| bool "Support loading from SPI flash" |
| depends on TPL_SPI_FLASH_SUPPORT |
| help |
| Enable support for loading next stage, U-Boot or otherwise, from |
| SPI NOR in U-Boot TPL. |
| |
| config TPL_SPI |
| bool "Support SPI drivers" |
| help |
| Enable support for using SPI in TPL. See SPL_SPI for |
| details. |
| |
| config TPL_DM_SPI |
| bool "Support SPI DM drivers in TPL" |
| help |
| Enable support for SPI DM drivers in TPL. |
| |
| config TPL_DM_SPI_FLASH |
| bool "Support SPI DM FLASH drivers in TPL" |
| help |
| Enable support for SPI DM flash drivers in TPL. |
| |
| config TPL_YMODEM_SUPPORT |
| bool "Support loading using Ymodem" |
| depends on TPL_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 TPL, |
| with a checksum to ensure correctness. |
| |
| endmenu |
