Simon Glass | 11bde1c | 2016-09-13 07:05:23 -0600 | [diff] [blame] | 1 | menu "SPL / TPL" |
| 2 | |
Simon Glass | c2ae7d8 | 2016-09-12 23:18:22 -0600 | [diff] [blame] | 3 | config SUPPORT_SPL |
| 4 | bool |
| 5 | |
| 6 | config SUPPORT_TPL |
| 7 | bool |
| 8 | |
| 9 | config SPL |
| 10 | bool |
| 11 | depends on SUPPORT_SPL |
| 12 | prompt "Enable SPL" |
| 13 | help |
| 14 | If you want to build SPL as well as the normal image, say Y. |
| 15 | |
| 16 | config SPL_SYS_MALLOC_SIMPLE |
| 17 | bool |
| 18 | depends on SPL |
| 19 | prompt "Only use malloc_simple functions in the SPL" |
| 20 | help |
| 21 | Say Y here to only use the *_simple malloc functions from |
| 22 | malloc_simple.c, rather then using the versions from dlmalloc.c; |
| 23 | this will make the SPL binary smaller at the cost of more heap |
| 24 | usage as the *_simple malloc functions do not re-use free-ed mem. |
| 25 | |
| 26 | config SPL_STACK_R |
| 27 | depends on SPL |
| 28 | bool "Enable SDRAM location for SPL stack" |
| 29 | help |
| 30 | SPL starts off execution in SRAM and thus typically has only a small |
| 31 | stack available. Since SPL sets up DRAM while in its board_init_f() |
| 32 | function, it is possible for the stack to move there before |
| 33 | board_init_r() is reached. This option enables a special SDRAM |
| 34 | location for the SPL stack. U-Boot SPL switches to this after |
| 35 | board_init_f() completes, and before board_init_r() starts. |
| 36 | |
| 37 | config SPL_STACK_R_ADDR |
| 38 | depends on SPL_STACK_R |
| 39 | hex "SDRAM location for SPL stack" |
| 40 | help |
| 41 | Specify the address in SDRAM for the SPL stack. This will be set up |
| 42 | before board_init_r() is called. |
| 43 | |
| 44 | config SPL_STACK_R_MALLOC_SIMPLE_LEN |
| 45 | depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE |
| 46 | hex "Size of malloc_simple heap after switching to DRAM SPL stack" |
| 47 | default 0x100000 |
| 48 | help |
| 49 | Specify the amount of the stack to use as memory pool for |
| 50 | malloc_simple after switching the stack to DRAM. This may be set |
| 51 | to give board_init_r() a larger heap then the initial heap in |
| 52 | SRAM which is limited to SYS_MALLOC_F_LEN bytes. |
| 53 | |
| 54 | config SPL_SEPARATE_BSS |
| 55 | depends on SPL |
| 56 | bool "BSS section is in a different memory region from text" |
| 57 | help |
| 58 | Some platforms need a large BSS region in SPL and can provide this |
| 59 | because RAM is already set up. In this case BSS can be moved to RAM. |
| 60 | This option should then be enabled so that the correct device tree |
| 61 | location is used. Normally we put the device tree at the end of BSS |
| 62 | but with this option enabled, it goes at _image_binary_end. |
| 63 | |
Simon Glass | a807ab3 | 2016-09-24 18:19:56 -0600 | [diff] [blame] | 64 | config SPL_DISPLAY_PRINT |
| 65 | depends on SPL |
| 66 | bool "Display a board-specific message in SPL" |
| 67 | help |
| 68 | If this option is enabled, U-Boot will call the function |
| 69 | spl_display_print() immediately after displaying the SPL console |
| 70 | banner ("U-Boot SPL ..."). This function should be provided by |
| 71 | the board. |
| 72 | |
Semen Protsenko | 38fed8a | 2016-11-16 19:19:05 +0200 | [diff] [blame] | 73 | config SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR |
| 74 | bool "MMC raw mode: by sector" |
| 75 | depends on SPL |
| 76 | default y if ARCH_SUNXI || ARCH_DAVINCI || ARCH_UNIPHIER ||ARCH_MX6 || \ |
| 77 | ARCH_ROCKCHIP || ARCH_MVEBU || ARCH_SOCFPGA || \ |
| 78 | ARCH_AT91 || ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || \ |
| 79 | OMAP44XX || OMAP54XX || AM33XX || AM43XX |
| 80 | help |
| 81 | Use sector number for specifying U-Boot location on MMC/SD in |
| 82 | raw mode. |
| 83 | |
| 84 | config SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR |
| 85 | hex "Address on the MMC to load U-Boot from" |
| 86 | depends on SPL && SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR |
| 87 | default 0x50 if ARCH_SUNXI |
| 88 | default 0x75 if ARCH_DAVINCI |
Semen Protsenko | 38fed8a | 2016-11-16 19:19:05 +0200 | [diff] [blame] | 89 | default 0x8a if ARCH_MX6 |
Masahiro Yamada | c0efc31 | 2017-01-28 06:53:53 +0900 | [diff] [blame] | 90 | default 0x100 if ARCH_ROCKCHIP || ARCH_UNIPHIER |
Semen Protsenko | 38fed8a | 2016-11-16 19:19:05 +0200 | [diff] [blame] | 91 | default 0x140 if ARCH_MVEBU |
| 92 | default 0x200 if ARCH_SOCFPGA || ARCH_AT91 |
| 93 | default 0x300 if ARCH_ZYNQ || ARCH_KEYSTONE || OMAP34XX || OMAP44XX || \ |
| 94 | OMAP54XX || AM33XX || AM43XX |
| 95 | help |
| 96 | Address on the MMC to load U-Boot from, when the MMC is being used |
| 97 | in raw mode. Units: MMC sectors (1 sector = 512 bytes). |
| 98 | |
Simon Glass | c2ae7d8 | 2016-09-12 23:18:22 -0600 | [diff] [blame] | 99 | config TPL |
| 100 | bool |
| 101 | depends on SPL && SUPPORT_TPL |
| 102 | prompt "Enable TPL" |
| 103 | help |
| 104 | If you want to build TPL as well as the normal image and SPL, say Y. |
Simon Glass | 11bde1c | 2016-09-13 07:05:23 -0600 | [diff] [blame] | 105 | |
| 106 | config SPL_CRC32_SUPPORT |
| 107 | bool "Support CRC32" |
| 108 | depends on SPL_FIT |
| 109 | help |
| 110 | Enable this to support CRC32 in FIT images within SPL. This is a |
| 111 | 32-bit checksum value that can be used to verify images. This is |
| 112 | the least secure type of checksum, suitable for detected |
| 113 | accidental image corruption. For secure applications you should |
| 114 | consider SHA1 or SHA256. |
| 115 | |
| 116 | config SPL_MD5_SUPPORT |
| 117 | bool "Support MD5" |
| 118 | depends on SPL_FIT |
| 119 | help |
| 120 | Enable this to support MD5 in FIT images within SPL. An MD5 |
| 121 | checksum is a 128-bit hash value used to check that the image |
| 122 | contents have not been corrupted. Note that MD5 is not considered |
| 123 | secure as it is possible (with a brute-force attack) to adjust the |
| 124 | image while still retaining the same MD5 hash value. For secure |
| 125 | applications where images may be changed maliciously, you should |
| 126 | consider SHA1 or SHA256. |
| 127 | |
| 128 | config SPL_SHA1_SUPPORT |
| 129 | bool "Support SHA1" |
| 130 | depends on SPL_FIT |
| 131 | help |
| 132 | Enable this to support SHA1 in FIT images within SPL. A SHA1 |
| 133 | checksum is a 160-bit (20-byte) hash value used to check that the |
| 134 | image contents have not been corrupted or maliciously altered. |
| 135 | While SHA1 is fairly secure it is coming to the end of its life |
| 136 | due to the expanding computing power avaiable to brute-force |
| 137 | attacks. For more security, consider SHA256. |
| 138 | |
| 139 | config SPL_SHA256_SUPPORT |
| 140 | bool "Support SHA256" |
| 141 | depends on SPL_FIT |
| 142 | help |
| 143 | Enable this to support SHA256 in FIT images within SPL. A SHA256 |
| 144 | checksum is a 256-bit (32-byte) hash value used to check that the |
| 145 | image contents have not been corrupted. SHA256 is recommended for |
| 146 | use in secure applications since (as at 2016) there is no known |
| 147 | feasible attack that could produce a 'collision' with differing |
| 148 | input data. Use this for the highest security. Note that only the |
| 149 | SHA256 variant is supported: SHA512 and others are not currently |
| 150 | supported in U-Boot. |
| 151 | |
Simon Glass | 5e148df | 2017-01-16 07:03:29 -0700 | [diff] [blame] | 152 | config SPL_CPU_SUPPORT |
| 153 | bool "Support CPU drivers" |
| 154 | depends on SPL |
| 155 | help |
| 156 | Enable this to support CPU drivers in SPL. These drivers can set |
| 157 | up CPUs and provide information about them such as the model and |
| 158 | name. This can be useful in SPL since setting up the CPUs earlier |
| 159 | may improve boot performance. Enable this option to build the |
| 160 | drivers in drivers/cpu as part of an SPL build. |
| 161 | |
Simon Glass | 11bde1c | 2016-09-13 07:05:23 -0600 | [diff] [blame] | 162 | config SPL_CRYPTO_SUPPORT |
| 163 | bool "Support crypto drivers" |
| 164 | depends on SPL |
| 165 | help |
| 166 | Enable crypto drivers in SPL. These drivers can be used to |
| 167 | accelerate secure boot processing in secure applications. Enable |
| 168 | this option to build the drivers in drivers/crypto as part of an |
| 169 | SPL build. |
| 170 | |
| 171 | config SPL_HASH_SUPPORT |
| 172 | bool "Support hashing drivers" |
| 173 | depends on SPL |
| 174 | help |
| 175 | Enable hashing drivers in SPL. These drivers can be used to |
| 176 | accelerate secure boot processing in secure applications. Enable |
| 177 | this option to build system-specific drivers for hash acceleration |
| 178 | as part of an SPL build. |
| 179 | |
| 180 | config SPL_DMA_SUPPORT |
| 181 | bool "Support DMA drivers" |
| 182 | depends on SPL |
| 183 | help |
| 184 | Enable DMA (direct-memory-access) drivers in SPL. These drivers |
| 185 | can be used to handle memory-to-peripheral data transfer without |
| 186 | the CPU moving the data. Enable this option to build the drivers |
| 187 | in drivers/dma as part of an SPL build. |
| 188 | |
| 189 | config SPL_DRIVERS_MISC_SUPPORT |
| 190 | bool "Support misc drivers" |
| 191 | depends on SPL |
| 192 | help |
| 193 | Enable miscellaneous drivers in SPL. These drivers perform various |
| 194 | tasks that don't fall nicely into other categories, Enable this |
| 195 | option to build the drivers in drivers/misc as part of an SPL |
| 196 | build, for those that support building in SPL (not all drivers do). |
| 197 | |
| 198 | config SPL_ENV_SUPPORT |
| 199 | bool "Support an environment" |
| 200 | depends on SPL |
| 201 | help |
| 202 | Enable environment support in SPL. The U-Boot environment provides |
| 203 | a number of settings (essentially name/value pairs) which can |
| 204 | control many aspects of U-Boot's operation. Normally this is not |
| 205 | needed in SPL as it has a much simpler task with less |
| 206 | configuration. But some boards use this to support 'Falcon' boot |
| 207 | on EXT2 and FAT, where SPL boots directly into Linux without |
| 208 | starting U-Boot first. Enabling this option will make getenv() |
| 209 | and setenv() available in SPL. |
| 210 | |
B, Ravi | d2d9bdf | 2016-09-28 14:46:18 +0530 | [diff] [blame] | 211 | config SPL_SAVEENV |
| 212 | bool "Support save environment" |
| 213 | depends on SPL && SPL_ENV_SUPPORT |
| 214 | help |
| 215 | Enable save environment support in SPL after setenv. By default |
| 216 | the saveenv option is not provided in SPL, but some boards need |
| 217 | this support in 'Falcon' boot, where SPL need to boot from |
| 218 | different images based on environment variable set by OS. For |
| 219 | example OS may set "reboot_image" environment variable to |
| 220 | "recovery" inorder to boot recovery image by SPL. The SPL read |
| 221 | "reboot_image" and act accordingly and change the reboot_image |
| 222 | to default mode using setenv and save the environemnt. |
| 223 | |
Simon Glass | 11bde1c | 2016-09-13 07:05:23 -0600 | [diff] [blame] | 224 | config SPL_ETH_SUPPORT |
| 225 | bool "Support Ethernet" |
| 226 | depends on SPL_ENV_SUPPORT |
| 227 | help |
| 228 | Enable access to the network subsystem and associated Ethernet |
| 229 | drivers in SPL. This permits SPL to load U-Boot over an Ethernet |
| 230 | link rather than from an on-board peripheral. Environment support |
| 231 | is required since the network stack uses a number of environment |
| 232 | variables. See also SPL_NET_SUPPORT. |
| 233 | |
| 234 | config SPL_EXT_SUPPORT |
| 235 | bool "Support EXT filesystems" |
| 236 | depends on SPL |
| 237 | help |
| 238 | Enable support for EXT2/3/4 filesystems with SPL. This permits |
| 239 | U-Boot (or Linux in Falcon mode) to be loaded from an EXT |
| 240 | filesystem from within SPL. Support for the underlying block |
| 241 | device (e.g. MMC or USB) must be enabled separately. |
| 242 | |
| 243 | config SPL_FAT_SUPPORT |
| 244 | bool "Support FAT filesystems" |
| 245 | depends on SPL |
| 246 | help |
| 247 | Enable support for FAT and VFAT filesystems with SPL. This |
| 248 | permits U-Boot (or Linux in Falcon mode) to be loaded from a FAT |
| 249 | filesystem from within SPL. Support for the underlying block |
| 250 | device (e.g. MMC or USB) must be enabled separately. |
| 251 | |
| 252 | config SPL_FPGA_SUPPORT |
| 253 | bool "Support FPGAs" |
| 254 | depends on SPL |
| 255 | help |
| 256 | Enable support for FPGAs in SPL. Field-programmable Gate Arrays |
| 257 | provide software-configurable hardware which is typically used to |
| 258 | implement peripherals (such as UARTs, LCD displays, MMC) or |
| 259 | accelerate custom processing functions, such as image processing |
| 260 | or machine learning. Sometimes it is useful to program the FPGA |
| 261 | as early as possible during boot, and this option can enable that |
| 262 | within SPL. |
| 263 | |
| 264 | config SPL_GPIO_SUPPORT |
| 265 | bool "Support GPIO" |
| 266 | depends on SPL |
| 267 | help |
| 268 | Enable support for GPIOs (General-purpose Input/Output) in SPL. |
| 269 | GPIOs allow U-Boot to read the state of an input line (high or |
| 270 | low) and set the state of an output line. This can be used to |
| 271 | drive LEDs, control power to various system parts and read user |
| 272 | input. GPIOs can be useful in SPL to enable a 'sign-of-life' LED, |
| 273 | for example. Enable this option to build the drivers in |
| 274 | drivers/gpio as part of an SPL build. |
| 275 | |
| 276 | config SPL_I2C_SUPPORT |
| 277 | bool "Support I2C" |
| 278 | depends on SPL |
| 279 | help |
| 280 | Enable support for the I2C (Inter-Integrated Circuit) bus in SPL. |
| 281 | I2C works with a clock and data line which can be driven by a |
| 282 | one or more masters or slaves. It is a fairly complex bus but is |
| 283 | widely used as it only needs two lines for communication. Speeds of |
| 284 | 400kbps are typical but up to 3.4Mbps is supported by some |
| 285 | hardware. I2C can be useful in SPL to configure power management |
| 286 | ICs (PMICs) before raising the CPU clock speed, for example. |
| 287 | Enable this option to build the drivers in drivers/i2c as part of |
| 288 | an SPL build. |
| 289 | |
| 290 | config SPL_LIBCOMMON_SUPPORT |
| 291 | bool "Support common libraries" |
| 292 | depends on SPL |
| 293 | help |
| 294 | Enable support for common U-Boot libraries within SPL. These |
| 295 | libraries include common code to deal with U-Boot images, |
| 296 | environment and USB, for example. This option is enabled on many |
| 297 | boards. Enable this option to build the code in common/ as part of |
| 298 | an SPL build. |
| 299 | |
| 300 | config SPL_LIBDISK_SUPPORT |
| 301 | bool "Support disk paritions" |
| 302 | depends on SPL |
| 303 | help |
| 304 | Enable support for disk partitions within SPL. 'Disk' is something |
| 305 | of a misnomer as it includes non-spinning media such as flash (as |
| 306 | used in MMC and USB sticks). Partitions provide a way for a disk |
| 307 | to be split up into separate regions, with a partition table placed |
| 308 | at the start or end which describes the location and size of each |
| 309 | 'partition'. These partitions are typically uses as individual block |
| 310 | devices, typically with an EXT2 or FAT filesystem in each. This |
| 311 | option enables whatever partition support has been enabled in |
| 312 | U-Boot to also be used in SPL. It brings in the code in disk/. |
| 313 | |
| 314 | config SPL_LIBGENERIC_SUPPORT |
| 315 | bool "Support generic libraries" |
| 316 | depends on SPL |
| 317 | help |
| 318 | Enable support for generic U-Boot libraries within SPL. These |
| 319 | libraries include generic code to deal with device tree, hashing, |
| 320 | printf(), compression and the like. This option is enabled on many |
| 321 | boards. Enable this option to build the code in lib/ as part of an |
| 322 | SPL build. |
| 323 | |
| 324 | config SPL_MMC_SUPPORT |
| 325 | bool "Support MMC" |
| 326 | depends on SPL |
| 327 | help |
| 328 | Enable support for MMC (Multimedia Card) within SPL. This enables |
| 329 | the MMC protocol implementation and allows any enabled drivers to |
| 330 | be used within SPL. MMC can be used with or without disk partition |
| 331 | support depending on the application (SPL_LIBDISK_SUPPORT). Enable |
| 332 | this option to build the drivers in drivers/mmc as part of an SPL |
| 333 | build. |
| 334 | |
| 335 | config SPL_MPC8XXX_INIT_DDR_SUPPORT |
| 336 | bool "Support MPC8XXX DDR init" |
| 337 | depends on SPL |
| 338 | help |
| 339 | Enable support for DDR-SDRAM (double-data-rate synchronous dynamic |
| 340 | random-access memory) on the MPC8XXX family within SPL. This |
| 341 | allows DRAM to be set up before loading U-Boot into that DRAM, |
| 342 | where it can run. |
| 343 | |
| 344 | config SPL_MTD_SUPPORT |
| 345 | bool "Support MTD drivers" |
| 346 | depends on SPL |
| 347 | help |
| 348 | Enable support for MTD (Memory Technology Device) within SPL. MTD |
| 349 | provides a block interface over raw NAND and can also be used with |
| 350 | SPI flash. This allows SPL to load U-Boot from supported MTD |
| 351 | devices. See SPL_NAND_SUPPORT and SPL_ONENAND_SUPPORT for how |
| 352 | to enable specific MTD drivers. |
| 353 | |
| 354 | config SPL_MUSB_NEW_SUPPORT |
| 355 | bool "Support new Mentor Graphics USB" |
| 356 | depends on SPL |
| 357 | help |
| 358 | Enable support for Mentor Graphics USB in SPL. This is a new |
| 359 | driver used by some boards. Enable this option to build |
| 360 | the drivers in drivers/usb/musb-new as part of an SPL build. The |
| 361 | old drivers are in drivers/usb/musb. |
| 362 | |
| 363 | config SPL_NAND_SUPPORT |
| 364 | bool "Support NAND flash" |
| 365 | depends on SPL |
| 366 | help |
| 367 | Enable support for NAND (Negative AND) flash in SPL. NAND flash |
| 368 | can be used to allow SPL to load U-Boot from supported devices. |
| 369 | This enables the drivers in drivers/mtd/nand as part of an SPL |
| 370 | build. |
| 371 | |
| 372 | config SPL_NET_SUPPORT |
| 373 | bool "Support networking" |
| 374 | depends on SPL |
| 375 | help |
| 376 | Enable support for network devices (such as Ethernet) in SPL. |
| 377 | This permits SPL to load U-Boot over a network link rather than |
| 378 | from an on-board peripheral. Environment support is required since |
| 379 | the network stack uses a number of environment variables. See also |
| 380 | SPL_ETH_SUPPORT. |
| 381 | |
| 382 | if SPL_NET_SUPPORT |
| 383 | config SPL_NET_VCI_STRING |
| 384 | string "BOOTP Vendor Class Identifier string sent by SPL" |
| 385 | help |
| 386 | As defined by RFC 2132 the vendor class identifier field can be |
| 387 | sent by the client to identify the vendor type and configuration |
| 388 | of a client. This is often used in practice to allow for the DHCP |
| 389 | server to specify different files to load depending on if the ROM, |
| 390 | SPL or U-Boot itself makes the request |
| 391 | endif # if SPL_NET_SUPPORT |
| 392 | |
| 393 | config SPL_NO_CPU_SUPPORT |
| 394 | bool "Drop CPU code in SPL" |
| 395 | depends on SPL |
| 396 | help |
| 397 | This is specific to the ARM926EJ-S CPU. It disables the standard |
| 398 | start.S start-up code, presumably so that a replacement can be |
| 399 | used on that CPU. You should not enable it unless you know what |
| 400 | you are doing. |
| 401 | |
| 402 | config SPL_NOR_SUPPORT |
| 403 | bool "Support NOR flash" |
| 404 | depends on SPL |
| 405 | help |
| 406 | Enable support for loading U-Boot from memory-mapped NOR (Negative |
| 407 | OR) flash in SPL. NOR flash is slow to write but fast to read, and |
| 408 | a memory-mapped device makes it very easy to access. Loading from |
| 409 | NOR is typically achieved with just a memcpy(). |
| 410 | |
| 411 | config SPL_ONENAND_SUPPORT |
| 412 | bool "Support OneNAND flash" |
| 413 | depends on SPL |
| 414 | help |
| 415 | Enable support for OneNAND (Negative AND) flash in SPL. OneNAND is |
| 416 | a type of NAND flash and therefore can be used to allow SPL to |
| 417 | load U-Boot from supported devices. This enables the drivers in |
| 418 | drivers/mtd/onenand as part of an SPL build. |
| 419 | |
Heiko Schocher | c20ae2f | 2016-10-06 07:55:15 +0200 | [diff] [blame] | 420 | config SPL_OS_BOOT |
| 421 | bool "Activate Falcon Mode" |
| 422 | depends on SPL && !TI_SECURE_DEVICE |
| 423 | default n |
| 424 | help |
| 425 | Enable booting directly to an OS from SPL. |
| 426 | for more info read doc/README.falcon |
| 427 | |
Heiko Schocher | 29d3bc7 | 2016-10-06 07:55:16 +0200 | [diff] [blame] | 428 | if SPL_OS_BOOT |
| 429 | config SYS_OS_BASE |
| 430 | hex "addr, where OS is found" |
| 431 | depends on SPL && SPL_NOR_SUPPORT |
| 432 | help |
| 433 | Specify the address, where the OS image is found, which |
| 434 | gets booted. |
| 435 | |
| 436 | endif # SPL_OS_BOOT |
| 437 | |
Simon Glass | 2446b6b | 2017-01-16 07:03:30 -0700 | [diff] [blame] | 438 | config SPL_PCI_SUPPORT |
| 439 | bool "Support PCI drivers" |
| 440 | depends on SPL |
| 441 | help |
| 442 | Enable support for PCI in SPL. For platforms that need PCI to boot, |
| 443 | or must perform some init using PCI in SPL, this provides the |
| 444 | necessary driver support. This enables the drivers in drivers/pci |
| 445 | as part of an SPL build. |
| 446 | |
Simon Glass | 11bde1c | 2016-09-13 07:05:23 -0600 | [diff] [blame] | 447 | config SPL_POST_MEM_SUPPORT |
| 448 | bool "Support POST drivers" |
| 449 | depends on SPL |
| 450 | help |
| 451 | Enable support for POST (Power-on Self Test) in SPL. POST is a |
| 452 | procedure that checks that the hardware (CPU or board) appears to |
| 453 | be functionally correctly. It is a sanity check that can be |
| 454 | performed before booting. This enables the drivers in post/drivers |
| 455 | as part of an SPL build. |
| 456 | |
| 457 | config SPL_POWER_SUPPORT |
| 458 | bool "Support power drivers" |
| 459 | depends on SPL |
| 460 | help |
| 461 | Enable support for power control in SPL. This includes support |
| 462 | for PMICs (Power-management Integrated Circuits) and some of the |
| 463 | features provided by PMICs. In particular, voltage regulators can |
| 464 | be used to enable/disable power and vary its voltage. That can be |
| 465 | useful in SPL to turn on boot peripherals and adjust CPU voltage |
| 466 | so that the clock speed can be increased. This enables the drivers |
| 467 | in drivers/power, drivers/power/pmic and drivers/power/regulator |
| 468 | as part of an SPL build. |
| 469 | |
Stefan Agner | 22802f4 | 2016-12-23 07:51:53 +0100 | [diff] [blame] | 470 | config SPL_RAM_SUPPORT |
| 471 | bool "Support booting from RAM" |
| 472 | depends on SPL |
| 473 | default y if MICROBLAZE || ARCH_SOCFPGA || TEGRA || ARCH_ZYNQ |
| 474 | help |
| 475 | Enable booting of an image in RAM. The image can be preloaded or |
| 476 | it can be loaded by SPL directly into RAM (e.g. using USB). |
| 477 | |
Stefan Agner | f417d40 | 2016-12-23 07:51:52 +0100 | [diff] [blame] | 478 | config SPL_RAM_DEVICE |
| 479 | bool "Support booting from preloaded image in RAM" |
Stefan Agner | 22802f4 | 2016-12-23 07:51:53 +0100 | [diff] [blame] | 480 | depends on SPL_RAM_SUPPORT |
Stefan Agner | f417d40 | 2016-12-23 07:51:52 +0100 | [diff] [blame] | 481 | default y if MICROBLAZE || ARCH_SOCFPGA || TEGRA || ARCH_ZYNQ |
| 482 | help |
| 483 | Enable booting of an image already loaded in RAM. The image has to |
| 484 | be already in memory when SPL takes over, e.g. loaded by the boot |
| 485 | ROM. |
| 486 | |
Simon Glass | 30bf8a0 | 2017-01-16 07:03:31 -0700 | [diff] [blame^] | 487 | config SPL_RTC_SUPPORT |
| 488 | bool "Support RTC drivers" |
| 489 | depends on SPL |
| 490 | help |
| 491 | Enable RTC (Real-time Clock) support in SPL. This includes support |
| 492 | for reading and setting the time. Some RTC devices also have some |
| 493 | non-volatile (battery-backed) memory which is accessible if |
| 494 | needed. This enables the drivers in drivers/rtc as part of an SPL |
| 495 | build. |
| 496 | |
Simon Glass | 11bde1c | 2016-09-13 07:05:23 -0600 | [diff] [blame] | 497 | config SPL_SATA_SUPPORT |
| 498 | bool "Support loading from SATA" |
| 499 | depends on SPL |
| 500 | help |
| 501 | Enable support for SATA (Serial AT attachment) in SPL. This allows |
| 502 | use of SATA devices such as hard drives and flash drivers for |
| 503 | loading U-Boot. SATA is used in higher-end embedded systems and |
| 504 | can provide higher performance than MMC , at somewhat higher |
| 505 | expense and power consumption. This enables loading from SATA |
| 506 | using a configured device. |
| 507 | |
| 508 | config SPL_SERIAL_SUPPORT |
| 509 | bool "Support serial" |
| 510 | depends on SPL |
| 511 | help |
| 512 | Enable support for serial in SPL. This allows use of a serial UART |
| 513 | for displaying messages while SPL is running. It also brings in |
| 514 | printf() and panic() functions. This should normally be enabled |
| 515 | unless there are space reasons not to. Even then, consider |
| 516 | enabling USE_TINY_PRINTF which is a small printf() version. |
| 517 | |
| 518 | config SPL_SPI_FLASH_SUPPORT |
| 519 | bool "Support SPI flash drivers" |
| 520 | depends on SPL |
| 521 | help |
| 522 | Enable support for using SPI flash in SPL, and loading U-Boot from |
| 523 | SPI flash. SPI flash (Serial Peripheral Bus flash) is named after |
| 524 | the SPI bus that is used to connect it to a system. It is a simple |
| 525 | but fast bidirectional 4-wire bus (clock, chip select and two data |
| 526 | lines). This enables the drivers in drivers/mtd/spi as part of an |
| 527 | SPL build. This normally requires SPL_SPI_SUPPORT. |
| 528 | |
| 529 | config SPL_SPI_SUPPORT |
| 530 | bool "Support SPI drivers" |
| 531 | depends on SPL |
| 532 | help |
| 533 | Enable support for using SPI in SPL. This is used for connecting |
| 534 | to SPI flash for loading U-Boot. See SPL_SPI_FLASH_SUPPORT for |
| 535 | more details on that. The SPI driver provides the transport for |
| 536 | data between the SPI flash and the CPU. This option can be used to |
| 537 | enable SPI drivers that are needed for other purposes also, such |
| 538 | as a SPI PMIC. |
| 539 | |
Simon Glass | 11bde1c | 2016-09-13 07:05:23 -0600 | [diff] [blame] | 540 | config SPL_USB_HOST_SUPPORT |
| 541 | bool "Support USB host drivers" |
| 542 | depends on SPL |
| 543 | help |
| 544 | Enable access to USB (Universal Serial Bus) host devices so that |
| 545 | SPL can load U-Boot from a connected USB peripheral, such as a USB |
| 546 | flash stick. While USB takes a little longer to start up than most |
| 547 | buses, it is very flexible since many different types of storage |
| 548 | device can be attached. This option enables the drivers in |
| 549 | drivers/usb/host as part of an SPL build. |
| 550 | |
| 551 | config SPL_USB_SUPPORT |
| 552 | bool "Support loading from USB" |
| 553 | depends on SPL_USB_HOST_SUPPORT |
| 554 | help |
| 555 | Enable support for USB devices in SPL. This allows use of USB |
| 556 | devices such as hard drives and flash drivers for loading U-Boot. |
| 557 | The actual drivers are enabled separately using the normal U-Boot |
| 558 | config options. This enables loading from USB using a configured |
| 559 | device. |
| 560 | |
Stefan Agner | e94793c | 2016-11-21 10:58:53 -0800 | [diff] [blame] | 561 | config SPL_USB_GADGET_SUPPORT |
| 562 | bool "Suppport USB Gadget drivers" |
| 563 | depends on SPL |
| 564 | help |
| 565 | Enable USB Gadget API which allows to enable USB device functions |
| 566 | in SPL. |
| 567 | |
| 568 | if SPL_USB_GADGET_SUPPORT |
| 569 | |
| 570 | config SPL_USBETH_SUPPORT |
| 571 | bool "Support USB Ethernet drivers" |
| 572 | help |
| 573 | Enable access to the USB network subsystem and associated |
| 574 | drivers in SPL. This permits SPL to load U-Boot over a |
| 575 | USB-connected Ethernet link (such as a USB Ethernet dongle) rather |
| 576 | than from an onboard peripheral. Environment support is required |
| 577 | since the network stack uses a number of environment variables. |
| 578 | See also SPL_NET_SUPPORT and SPL_ETH_SUPPORT. |
| 579 | |
Stefan Agner | 5991703 | 2016-11-21 10:58:52 -0800 | [diff] [blame] | 580 | config SPL_DFU_SUPPORT |
| 581 | bool "Support DFU (Device Firmware Upgarde)" |
Stefan Agner | 5991703 | 2016-11-21 10:58:52 -0800 | [diff] [blame] | 582 | select SPL_HASH_SUPPORT |
| 583 | help |
| 584 | This feature enables the DFU (Device Firmware Upgarde) in SPL with |
| 585 | RAM memory device support. The ROM code will load and execute |
| 586 | the SPL built with dfu. The user can load binaries (u-boot/kernel) to |
| 587 | selected device partition from host-pc using dfu-utils. |
| 588 | This feature is useful to flash the binaries to factory or bare-metal |
| 589 | boards using USB interface. |
| 590 | |
| 591 | choice |
| 592 | bool "DFU device selection" |
| 593 | depends on SPL_DFU_SUPPORT |
| 594 | |
| 595 | config SPL_DFU_RAM |
| 596 | bool "RAM device" |
Stefan Agner | 22802f4 | 2016-12-23 07:51:53 +0100 | [diff] [blame] | 597 | depends on SPL_DFU_SUPPORT && SPL_RAM_SUPPORT |
Stefan Agner | 5991703 | 2016-11-21 10:58:52 -0800 | [diff] [blame] | 598 | help |
| 599 | select RAM/DDR memory device for loading binary images |
| 600 | (u-boot/kernel) to the selected device partition using |
| 601 | DFU and execute the u-boot/kernel from RAM. |
| 602 | |
| 603 | endchoice |
| 604 | |
Stefan Agner | e94793c | 2016-11-21 10:58:53 -0800 | [diff] [blame] | 605 | endif |
| 606 | |
Simon Glass | 11bde1c | 2016-09-13 07:05:23 -0600 | [diff] [blame] | 607 | config SPL_WATCHDOG_SUPPORT |
| 608 | bool "Support watchdog drivers" |
| 609 | depends on SPL |
| 610 | help |
| 611 | Enable support for watchdog drivers in SPL. A watchdog is |
| 612 | typically a hardware peripheral which can reset the system when it |
| 613 | detects no activity for a while (such as a software crash). This |
| 614 | enables the drivers in drivers/watchdog as part of an SPL build. |
| 615 | |
| 616 | config SPL_YMODEM_SUPPORT |
| 617 | bool "Support loading using Ymodem" |
| 618 | depends on SPL |
| 619 | help |
| 620 | While loading from serial is slow it can be a useful backup when |
| 621 | there is no other option. The Ymodem protocol provides a reliable |
| 622 | means of transmitting U-Boot over a serial line for using in SPL, |
| 623 | with a checksum to ensure correctness. |
| 624 | |
Simon Glass | f73329e | 2016-09-12 23:18:27 -0600 | [diff] [blame] | 625 | config TPL_ENV_SUPPORT |
| 626 | bool "Support an environment" |
| 627 | depends on TPL |
| 628 | help |
| 629 | Enable environment support in TPL. See SPL_ENV_SUPPORT for details. |
| 630 | |
| 631 | config TPL_I2C_SUPPORT |
| 632 | bool "Support I2C" |
| 633 | depends on TPL |
| 634 | help |
| 635 | Enable support for the I2C bus in SPL. See SPL_I2C_SUPPORT for |
| 636 | details. |
| 637 | |
| 638 | config TPL_LIBCOMMON_SUPPORT |
| 639 | bool "Support common libraries" |
| 640 | depends on TPL |
| 641 | help |
| 642 | Enable support for common U-Boot libraries within TPL. See |
| 643 | SPL_LIBCOMMON_SUPPORT for details. |
| 644 | |
| 645 | config TPL_LIBGENERIC_SUPPORT |
| 646 | bool "Support generic libraries" |
| 647 | depends on TPL |
| 648 | help |
| 649 | Enable support for generic U-Boot libraries within TPL. See |
| 650 | SPL_LIBGENERIC_SUPPORT for details. |
| 651 | |
| 652 | config TPL_MPC8XXX_INIT_DDR_SUPPORT |
| 653 | bool "Support MPC8XXX DDR init" |
| 654 | depends on TPL |
| 655 | help |
| 656 | Enable support for DDR-SDRAM on the MPC8XXX family within TPL. See |
| 657 | SPL_MPC8XXX_INIT_DDR_SUPPORT for details. |
| 658 | |
| 659 | config TPL_MMC_SUPPORT |
| 660 | bool "Support MMC" |
| 661 | depends on TPL |
| 662 | help |
| 663 | Enable support for MMC within TPL. See SPL_MMC_SUPPORT for details. |
| 664 | |
| 665 | config TPL_NAND_SUPPORT |
| 666 | bool "Support NAND flash" |
| 667 | depends on TPL |
| 668 | help |
| 669 | Enable support for NAND in SPL. See SPL_NAND_SUPPORT for details. |
| 670 | |
| 671 | config TPL_SERIAL_SUPPORT |
| 672 | bool "Support serial" |
| 673 | depends on TPL |
| 674 | help |
| 675 | Enable support for serial in SPL. See SPL_SERIAL_SUPPORT for |
| 676 | details. |
| 677 | |
| 678 | config TPL_SPI_FLASH_SUPPORT |
| 679 | bool "Support SPI flash drivers" |
| 680 | depends on TPL |
| 681 | help |
| 682 | Enable support for using SPI flash in SPL. See SPL_SPI_FLASH_SUPPORT |
| 683 | for details. |
| 684 | |
| 685 | config TPL_SPI_SUPPORT |
| 686 | bool "Support SPI drivers" |
| 687 | depends on TPL |
| 688 | help |
| 689 | Enable support for using SPI in SPL. See SPL_SPI_SUPPORT for |
| 690 | details. |
| 691 | |
Simon Glass | 11bde1c | 2016-09-13 07:05:23 -0600 | [diff] [blame] | 692 | endmenu |