| menu "SPL / TPL" |
| |
| config SUPPORT_SPL |
| bool |
| |
| config SUPPORT_TPL |
| bool |
| |
| config SPL_DFU_NO_RESET |
| bool |
| |
| config SPL |
| bool |
| depends on SUPPORT_SPL |
| prompt "Enable SPL" |
| help |
| If you want to build SPL as well as the normal image, say Y. |
| |
| config SPL_RAW_IMAGE_SUPPORT |
| bool "Support SPL loading and booting of RAW images" |
| depends on SPL |
| default n if (ARCH_MX6 && (SPL_MMC_SUPPORT || SPL_SATA_SUPPORT)) |
| default y if !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_SUPPORT |
| bool "Support SPL loading and booting of Legacy images" |
| default y if !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_SYS_MALLOC_SIMPLE |
| bool |
| depends on SPL |
| prompt "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_STACK_R |
| depends on SPL |
| 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" |
| 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 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 |
| depends on SPL |
| 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_DISPLAY_PRINT |
| depends on SPL |
| 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 SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR |
| bool "MMC raw mode: by sector" |
| depends on SPL |
| default y if ARCH_SUNXI || ARCH_DAVINCI || ARCH_UNIPHIER ||ARCH_MX6 || \ |
| ARCH_ROCKCHIP || ARCH_MVEBU || ARCH_SOCFPGA || \ |
| ARCH_AT91 || ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || \ |
| OMAP44XX || OMAP54XX || AM33XX || AM43XX |
| 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 SPL && SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR |
| default 0x50 if ARCH_SUNXI |
| default 0x75 if ARCH_DAVINCI |
| default 0x8a if ARCH_MX6 |
| default 0x100 if ARCH_ROCKCHIP || ARCH_UNIPHIER |
| default 0x140 if ARCH_MVEBU |
| default 0x200 if ARCH_SOCFPGA || ARCH_AT91 |
| default 0x300 if ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || OMAP44XX || \ |
| OMAP54XX || AM33XX || AM43XX |
| 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_USE_PARTITION |
| bool "MMC Raw mode: by partition" |
| depends on SPL |
| 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 SPL && 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 SPL && 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 SPL && 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 TPL |
| bool |
| depends on SPL && SUPPORT_TPL |
| prompt "Enable TPL" |
| help |
| If you want to build TPL as well as the normal image and SPL, say Y. |
| |
| config SPL_CRC32_SUPPORT |
| bool "Support CRC32" |
| depends on SPL_FIT |
| 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. |
| |
| config SPL_MD5_SUPPORT |
| bool "Support MD5" |
| depends on SPL_FIT |
| help |
| Enable this to support MD5 in FIT images within SPL. An MD5 |
| checksum is a 128-bit hash value used to check that the image |
| contents have not been corrupted. Note that MD5 is not considered |
| secure as it is possible (with a brute-force attack) to adjust the |
| image while still retaining the same MD5 hash value. For secure |
| applications where images may be changed maliciously, you should |
| consider SHA1 or SHA256. |
| |
| config SPL_SHA1_SUPPORT |
| bool "Support SHA1" |
| depends on SPL_FIT |
| help |
| Enable this to support SHA1 in FIT images within SPL. A SHA1 |
| 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 |
| attacks. For more security, consider SHA256. |
| |
| config SPL_SHA256_SUPPORT |
| bool "Support SHA256" |
| depends on SPL_FIT |
| help |
| Enable this to support SHA256 in FIT images within SPL. A SHA256 |
| checksum is a 256-bit (32-byte) hash value used to check that the |
| image contents have not been corrupted. SHA256 is recommended for |
| use in secure applications since (as at 2016) there is no known |
| feasible attack that could produce a 'collision' with differing |
| input data. Use this for the highest security. Note that only the |
| SHA256 variant is supported: SHA512 and others are not currently |
| supported in U-Boot. |
| |
| config SPL_CPU_SUPPORT |
| bool "Support CPU drivers" |
| depends on SPL |
| 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_SUPPORT |
| bool "Support crypto drivers" |
| depends on SPL |
| 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_HASH_SUPPORT |
| bool "Support hashing drivers" |
| depends on SPL |
| 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" |
| depends on SPL |
| 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_SUPPORT |
| bool "Support misc drivers" |
| depends on SPL |
| 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" |
| depends on SPL |
| 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 getenv() |
| and setenv() available in SPL. |
| |
| config SPL_SAVEENV |
| bool "Support save environment" |
| depends on SPL && SPL_ENV_SUPPORT |
| 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 environemnt. |
| |
| config SPL_ETH_SUPPORT |
| bool "Support Ethernet" |
| depends on SPL_ENV_SUPPORT |
| 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_SUPPORT. |
| |
| config SPL_EXT_SUPPORT |
| bool "Support EXT filesystems" |
| depends on SPL |
| 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_FAT_SUPPORT |
| bool "Support FAT filesystems" |
| depends on SPL |
| 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_FPGA_SUPPORT |
| bool "Support FPGAs" |
| depends on SPL |
| 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_SUPPORT |
| bool "Support GPIO" |
| depends on 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_SUPPORT |
| bool "Support I2C" |
| depends on SPL |
| 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" |
| depends on SPL |
| 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 paritions" |
| depends on SPL |
| 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" |
| depends on SPL |
| 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_MMC_SUPPORT |
| bool "Support MMC" |
| depends on SPL && 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 SPL_MPC8XXX_INIT_DDR_SUPPORT |
| bool "Support MPC8XXX DDR init" |
| depends on SPL |
| 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_SUPPORT |
| bool "Support MTD drivers" |
| depends on SPL |
| 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_SUPPORT |
| bool "Support new Mentor Graphics USB" |
| depends on SPL |
| 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" |
| depends on SPL |
| 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 as part of an SPL |
| build. |
| |
| config SPL_NET_SUPPORT |
| bool "Support networking" |
| depends on SPL |
| 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_SUPPORT. |
| |
| if SPL_NET_SUPPORT |
| config SPL_NET_VCI_STRING |
| string "BOOTP Vendor Class Identifier string sent by SPL" |
| 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 |
| endif # if SPL_NET_SUPPORT |
| |
| config SPL_NO_CPU_SUPPORT |
| bool "Drop CPU code in SPL" |
| depends on SPL |
| 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" |
| depends on SPL |
| 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_ONENAND_SUPPORT |
| bool "Support OneNAND flash" |
| depends on SPL |
| 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 SPL && !TI_SECURE_DEVICE |
| default n |
| help |
| Enable booting directly to an OS from SPL. |
| for more info read doc/README.falcon |
| |
| if SPL_OS_BOOT |
| config SYS_OS_BASE |
| hex "addr, where OS is found" |
| depends on SPL && SPL_NOR_SUPPORT |
| help |
| Specify the address, where the OS image is found, which |
| gets booted. |
| |
| endif # SPL_OS_BOOT |
| |
| config SPL_PCI_SUPPORT |
| bool "Support PCI drivers" |
| depends on SPL |
| 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_SUPPORT |
| bool "Support PCH drivers" |
| depends on SPL |
| 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" |
| depends on SPL |
| 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_POWER_SUPPORT |
| bool "Support power drivers" |
| depends on SPL |
| 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_RAM_SUPPORT |
| bool "Support booting from RAM" |
| depends on SPL |
| default y if MICROBLAZE || ARCH_SOCFPGA || 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 || 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_RTC_SUPPORT |
| bool "Support RTC drivers" |
| depends on SPL |
| 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_SUPPORT |
| bool "Support loading from SATA" |
| depends on SPL |
| 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 SPL_SERIAL_SUPPORT |
| bool "Support serial" |
| depends on SPL |
| 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 USE_TINY_PRINTF which is a small printf() version. |
| |
| config SPL_SPI_FLASH_SUPPORT |
| bool "Support SPI flash drivers" |
| depends on SPL |
| 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_SUPPORT. |
| |
| config SPL_SPI_SUPPORT |
| bool "Support SPI drivers" |
| depends on SPL |
| 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_TIMER_SUPPORT |
| bool "Support timer drivers" |
| depends on SPL |
| help |
| Enable support for timer drivers in SPL. These can be used to get |
| a timer value when in SPL, or perhaps for implementing a delay |
| function. This enables the drivers in drivers/timer as part of an |
| SPL build. |
| |
| config SPL_USB_HOST_SUPPORT |
| bool "Support USB host drivers" |
| depends on SPL |
| help |
| Enable access to USB (Universal Serial Bus) host devices so that |
| SPL can load U-Boot from a connected USB peripheral, such as a USB |
| flash stick. While USB takes a little longer to start up than most |
| buses, it is very flexible since many different types of storage |
| device can be attached. This option enables the drivers in |
| drivers/usb/host as part of an SPL build. |
| |
| config SPL_USB_SUPPORT |
| bool "Support loading from USB" |
| depends on SPL_USB_HOST_SUPPORT |
| help |
| Enable support for USB devices in SPL. This allows use of USB |
| devices such as hard drives and flash drivers for loading U-Boot. |
| The actual drivers are enabled separately using the normal U-Boot |
| config options. This enables loading from USB using a configured |
| device. |
| |
| config SPL_USB_GADGET_SUPPORT |
| bool "Suppport USB Gadget drivers" |
| depends on SPL |
| help |
| Enable USB Gadget API which allows to enable USB device functions |
| in SPL. |
| |
| if SPL_USB_GADGET_SUPPORT |
| |
| config SPL_USBETH_SUPPORT |
| bool "Support USB Ethernet drivers" |
| help |
| Enable access to the USB network subsystem and associated |
| drivers in SPL. This permits SPL to load U-Boot over a |
| USB-connected Ethernet link (such as a USB Ethernet dongle) rather |
| than from an onboard peripheral. Environment support is required |
| since the network stack uses a number of environment variables. |
| See also SPL_NET_SUPPORT and SPL_ETH_SUPPORT. |
| |
| config SPL_DFU_SUPPORT |
| bool "Support DFU (Device Firmware Upgarde)" |
| select SPL_HASH_SUPPORT |
| select SPL_DFU_NO_RESET |
| depends on SPL_RAM_SUPPORT |
| help |
| This feature enables the DFU (Device Firmware Upgarde) in SPL with |
| RAM memory device support. The ROM code will load and execute |
| the SPL built with dfu. The user can load binaries (u-boot/kernel) to |
| selected device partition from host-pc using dfu-utils. |
| This feature is useful to flash the binaries to factory or bare-metal |
| boards using USB interface. |
| |
| choice |
| bool "DFU device selection" |
| depends on SPL_DFU_SUPPORT |
| |
| config SPL_DFU_RAM |
| bool "RAM device" |
| depends on SPL_DFU_SUPPORT && SPL_RAM_SUPPORT |
| help |
| select RAM/DDR memory device for loading binary images |
| (u-boot/kernel) to the selected device partition using |
| DFU and execute the u-boot/kernel from RAM. |
| |
| endchoice |
| |
| endif |
| |
| config SPL_WATCHDOG_SUPPORT |
| bool "Support watchdog drivers" |
| depends on SPL |
| help |
| Enable support for watchdog drivers in SPL. A watchdog is |
| typically a hardware peripheral which can reset the system when it |
| detects no activity for a while (such as a software crash). This |
| enables the drivers in drivers/watchdog as part of an SPL build. |
| |
| config SPL_YMODEM_SUPPORT |
| bool "Support loading using Ymodem" |
| depends on SPL |
| help |
| While loading from serial is slow it can be a useful backup when |
| there is no other option. The Ymodem protocol provides a reliable |
| means of transmitting U-Boot over a serial line for using in SPL, |
| with a checksum to ensure correctness. |
| |
| config TPL_ENV_SUPPORT |
| bool "Support an environment" |
| depends on TPL |
| help |
| Enable environment support in TPL. See SPL_ENV_SUPPORT for details. |
| |
| config TPL_I2C_SUPPORT |
| bool "Support I2C" |
| depends on TPL |
| help |
| Enable support for the I2C bus in SPL. See SPL_I2C_SUPPORT for |
| details. |
| |
| config TPL_LIBCOMMON_SUPPORT |
| bool "Support common libraries" |
| depends on TPL |
| help |
| Enable support for common U-Boot libraries within TPL. See |
| SPL_LIBCOMMON_SUPPORT for details. |
| |
| config TPL_LIBGENERIC_SUPPORT |
| bool "Support generic libraries" |
| depends on TPL |
| help |
| Enable support for generic U-Boot libraries within TPL. See |
| SPL_LIBGENERIC_SUPPORT for details. |
| |
| config TPL_MPC8XXX_INIT_DDR_SUPPORT |
| bool "Support MPC8XXX DDR init" |
| depends on TPL |
| help |
| Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See |
| SPL_MPC8XXX_INIT_DDR_SUPPORT for details. |
| |
| config TPL_MMC_SUPPORT |
| bool "Support MMC" |
| depends on TPL && MMC |
| help |
| Enable support for MMC within TPL. See SPL_MMC_SUPPORT for details. |
| |
| config TPL_NAND_SUPPORT |
| bool "Support NAND flash" |
| depends on TPL |
| help |
| Enable support for NAND in SPL. See SPL_NAND_SUPPORT for details. |
| |
| config TPL_SERIAL_SUPPORT |
| bool "Support serial" |
| depends on TPL |
| help |
| Enable support for serial in SPL. See SPL_SERIAL_SUPPORT for |
| details. |
| |
| config TPL_SPI_FLASH_SUPPORT |
| bool "Support SPI flash drivers" |
| depends on TPL |
| help |
| Enable support for using SPI flash in SPL. See SPL_SPI_FLASH_SUPPORT |
| for details. |
| |
| config TPL_SPI_SUPPORT |
| bool "Support SPI drivers" |
| depends on TPL |
| help |
| Enable support for using SPI in SPL. See SPL_SPI_SUPPORT for |
| details. |
| |
| endmenu |