1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2014 4 * NVIDIA Corporation <www.nvidia.com> 5 * 6 * Copyright 2014 Red Hat, Inc. 7 */ 8 9 #ifndef _CONFIG_CMD_DISTRO_BOOTCMD_H 10 #define _CONFIG_CMD_DISTRO_BOOTCMD_H 11 12 /* 13 * A note on error handling: It is possible for BOOT_TARGET_DEVICES to 14 * reference a device that is not enabled in the U-Boot configuration, e.g. 15 * it may include MMC in the list without CONFIG_CMD_MMC being enabled. Given 16 * that BOOT_TARGET_DEVICES is a macro that's expanded by the C pre-processor 17 * at compile time, it's not possible to detect and report such problems via 18 * a simple #ifdef/#error combination. Still, the code needs to report errors. 19 * The best way I've found to do this is to make BOOT_TARGET_DEVICES expand to 20 * reference a non-existent symbol, and have the name of that symbol encode 21 * the error message. Consequently, this file contains references to e.g. 22 * BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC. Given the 23 * prevalence of capitals here, this looks like a pre-processor macro and 24 * hence seems like it should be all capitals, but it's really an error 25 * message that includes some other pre-processor symbols in the text. 26 */ 27 28 #define BOOTENV_SHARED_BLKDEV_BODY(devtypel) \ 29 "if " #devtypel " dev ${devnum}; then " \ 30 "setenv devtype " #devtypel "; " \ 31 "run scan_dev_for_boot_part; " \ 32 "fi\0" 33 34 #define BOOTENV_SHARED_BLKDEV(devtypel) \ 35 #devtypel "_boot=" \ 36 BOOTENV_SHARED_BLKDEV_BODY(devtypel) 37 38 #define BOOTENV_DEV_BLKDEV(devtypeu, devtypel, instance) \ 39 "bootcmd_" #devtypel #instance "=" \ 40 "setenv devnum " #instance "; " \ 41 "run " #devtypel "_boot\0" 42 43 #define BOOTENV_DEV_NAME_BLKDEV(devtypeu, devtypel, instance) \ 44 #devtypel #instance " " 45 46 #ifdef CONFIG_SANDBOX 47 #define BOOTENV_SHARED_HOST BOOTENV_SHARED_BLKDEV(host) 48 #define BOOTENV_DEV_HOST BOOTENV_DEV_BLKDEV 49 #define BOOTENV_DEV_NAME_HOST BOOTENV_DEV_NAME_BLKDEV 50 #else 51 #define BOOTENV_SHARED_HOST 52 #define BOOTENV_DEV_HOST \ 53 BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX 54 #define BOOTENV_DEV_NAME_HOST \ 55 BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX 56 #endif 57 58 #ifdef CONFIG_CMD_MMC 59 #define BOOTENV_SHARED_MMC BOOTENV_SHARED_BLKDEV(mmc) 60 #define BOOTENV_DEV_MMC BOOTENV_DEV_BLKDEV 61 #define BOOTENV_DEV_NAME_MMC BOOTENV_DEV_NAME_BLKDEV 62 #else 63 #define BOOTENV_SHARED_MMC 64 #define BOOTENV_DEV_MMC \ 65 BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC 66 #define BOOTENV_DEV_NAME_MMC \ 67 BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC 68 #endif 69 70 #ifdef CONFIG_CMD_UBIFS 71 #define BOOTENV_SHARED_UBIFS \ 72 "ubifs_boot=" \ 73 "env exists bootubipart || " \ 74 "env set bootubipart UBI; " \ 75 "env exists bootubivol || " \ 76 "env set bootubivol boot; " \ 77 "if ubi part ${bootubipart} && " \ 78 "ubifsmount ubi${devnum}:${bootubivol}; " \ 79 "then " \ 80 "setenv devtype ubi; " \ 81 "run scan_dev_for_boot; " \ 82 "fi\0" 83 #define BOOTENV_DEV_UBIFS BOOTENV_DEV_BLKDEV 84 #define BOOTENV_DEV_NAME_UBIFS BOOTENV_DEV_NAME_BLKDEV 85 #else 86 #define BOOTENV_SHARED_UBIFS 87 #define BOOTENV_DEV_UBIFS \ 88 BOOT_TARGET_DEVICES_references_UBIFS_without_CONFIG_CMD_UBIFS 89 #define BOOTENV_DEV_NAME_UBIFS \ 90 BOOT_TARGET_DEVICES_references_UBIFS_without_CONFIG_CMD_UBIFS 91 #endif 92 93 #ifdef CONFIG_EFI_LOADER 94 #if defined(CONFIG_ARM64) 95 #define BOOTEFI_NAME "bootaa64.efi" 96 #elif defined(CONFIG_ARM) 97 #define BOOTEFI_NAME "bootarm.efi" 98 #elif defined(CONFIG_X86_RUN_32BIT) 99 #define BOOTEFI_NAME "bootia32.efi" 100 #elif defined(CONFIG_X86_RUN_64BIT) 101 #define BOOTEFI_NAME "bootx64.efi" 102 #endif 103 #endif 104 105 #ifdef BOOTEFI_NAME 106 #if defined(CONFIG_ARM) && !defined(CONFIG_ARM64) 107 /* 108 * On 32bit ARM systems there is a reasonable number of systems that follow 109 * the $soc-$board$boardver.dtb name scheme for their device trees. Use that 110 * scheme if we don't have an explicit fdtfile variable. 111 */ 112 #define BOOTENV_EFI_SET_FDTFILE_FALLBACK \ 113 "if test -z \"${fdtfile}\" -a -n \"${soc}\"; then " \ 114 "setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; " \ 115 "fi; " 116 #else 117 #define BOOTENV_EFI_SET_FDTFILE_FALLBACK 118 #endif 119 120 121 #define BOOTENV_SHARED_EFI \ 122 "boot_efi_binary=" \ 123 "if fdt addr ${fdt_addr_r}; then " \ 124 "bootefi bootmgr ${fdt_addr_r};" \ 125 "else " \ 126 "bootefi bootmgr ${fdtcontroladdr};" \ 127 "fi;" \ 128 "load ${devtype} ${devnum}:${distro_bootpart} " \ 129 "${kernel_addr_r} efi/boot/"BOOTEFI_NAME"; " \ 130 "if fdt addr ${fdt_addr_r}; then " \ 131 "bootefi ${kernel_addr_r} ${fdt_addr_r};" \ 132 "else " \ 133 "bootefi ${kernel_addr_r} ${fdtcontroladdr};" \ 134 "fi\0" \ 135 \ 136 "load_efi_dtb=" \ 137 "load ${devtype} ${devnum}:${distro_bootpart} " \ 138 "${fdt_addr_r} ${prefix}${efi_fdtfile}\0" \ 139 \ 140 "efi_dtb_prefixes=/ /dtb/ /dtb/current/\0" \ 141 "scan_dev_for_efi=" \ 142 "setenv efi_fdtfile ${fdtfile}; " \ 143 BOOTENV_EFI_SET_FDTFILE_FALLBACK \ 144 "for prefix in ${efi_dtb_prefixes}; do " \ 145 "if test -e ${devtype} " \ 146 "${devnum}:${distro_bootpart} " \ 147 "${prefix}${efi_fdtfile}; then " \ 148 "run load_efi_dtb; " \ 149 "fi;" \ 150 "done;" \ 151 "if test -e ${devtype} ${devnum}:${distro_bootpart} " \ 152 "efi/boot/"BOOTEFI_NAME"; then " \ 153 "echo Found EFI removable media binary " \ 154 "efi/boot/"BOOTEFI_NAME"; " \ 155 "run boot_efi_binary; " \ 156 "echo EFI LOAD FAILED: continuing...; " \ 157 "fi; " \ 158 "setenv efi_fdtfile\0" 159 #define SCAN_DEV_FOR_EFI "run scan_dev_for_efi;" 160 #else 161 #define BOOTENV_SHARED_EFI 162 #define SCAN_DEV_FOR_EFI 163 #endif 164 165 #ifdef CONFIG_SATA 166 #define BOOTENV_SHARED_SATA BOOTENV_SHARED_BLKDEV(sata) 167 #define BOOTENV_DEV_SATA BOOTENV_DEV_BLKDEV 168 #define BOOTENV_DEV_NAME_SATA BOOTENV_DEV_NAME_BLKDEV 169 #else 170 #define BOOTENV_SHARED_SATA 171 #define BOOTENV_DEV_SATA \ 172 BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_SATA 173 #define BOOTENV_DEV_NAME_SATA \ 174 BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_SATA 175 #endif 176 177 #ifdef CONFIG_SCSI 178 #define BOOTENV_RUN_SCSI_INIT "run scsi_init; " 179 #define BOOTENV_SET_SCSI_NEED_INIT "setenv scsi_need_init; " 180 #define BOOTENV_SHARED_SCSI \ 181 "scsi_init=" \ 182 "if ${scsi_need_init}; then " \ 183 "setenv scsi_need_init false; " \ 184 "scsi scan; " \ 185 "fi\0" \ 186 \ 187 "scsi_boot=" \ 188 BOOTENV_RUN_SCSI_INIT \ 189 BOOTENV_SHARED_BLKDEV_BODY(scsi) 190 #define BOOTENV_DEV_SCSI BOOTENV_DEV_BLKDEV 191 #define BOOTENV_DEV_NAME_SCSI BOOTENV_DEV_NAME_BLKDEV 192 #else 193 #define BOOTENV_RUN_SCSI_INIT 194 #define BOOTENV_SET_SCSI_NEED_INIT 195 #define BOOTENV_SHARED_SCSI 196 #define BOOTENV_DEV_SCSI \ 197 BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI 198 #define BOOTENV_DEV_NAME_SCSI \ 199 BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI 200 #endif 201 202 #ifdef CONFIG_IDE 203 #define BOOTENV_SHARED_IDE BOOTENV_SHARED_BLKDEV(ide) 204 #define BOOTENV_DEV_IDE BOOTENV_DEV_BLKDEV 205 #define BOOTENV_DEV_NAME_IDE BOOTENV_DEV_NAME_BLKDEV 206 #else 207 #define BOOTENV_SHARED_IDE 208 #define BOOTENV_DEV_IDE \ 209 BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_IDE 210 #define BOOTENV_DEV_NAME_IDE \ 211 BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_IDE 212 #endif 213 214 #if defined(CONFIG_DM_PCI) 215 #define BOOTENV_RUN_NET_PCI_ENUM "run boot_net_pci_enum; " 216 #define BOOTENV_SHARED_PCI \ 217 "boot_net_pci_enum=pci enum\0" 218 #else 219 #define BOOTENV_RUN_NET_PCI_ENUM 220 #define BOOTENV_SHARED_PCI 221 #endif 222 223 #ifdef CONFIG_CMD_USB 224 #define BOOTENV_RUN_NET_USB_START "run boot_net_usb_start; " 225 #define BOOTENV_SHARED_USB \ 226 "boot_net_usb_start=usb start\0" \ 227 "usb_boot=" \ 228 "usb start; " \ 229 BOOTENV_SHARED_BLKDEV_BODY(usb) 230 #define BOOTENV_DEV_USB BOOTENV_DEV_BLKDEV 231 #define BOOTENV_DEV_NAME_USB BOOTENV_DEV_NAME_BLKDEV 232 #else 233 #define BOOTENV_RUN_NET_USB_START 234 #define BOOTENV_SHARED_USB 235 #define BOOTENV_DEV_USB \ 236 BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB 237 #define BOOTENV_DEV_NAME_USB \ 238 BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB 239 #endif 240 241 #if defined(CONFIG_CMD_DHCP) 242 #if defined(CONFIG_EFI_LOADER) 243 #if defined(CONFIG_ARM64) 244 #define BOOTENV_EFI_PXE_ARCH "0xb" 245 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00011:UNDI:003000" 246 #elif defined(CONFIG_ARM) 247 #define BOOTENV_EFI_PXE_ARCH "0xa" 248 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00010:UNDI:003000" 249 #elif defined(CONFIG_X86) 250 /* Always assume we're running 64bit */ 251 #define BOOTENV_EFI_PXE_ARCH "0x7" 252 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00007:UNDI:003000" 253 #else 254 #error Please specify an EFI client identifier 255 #endif 256 257 /* 258 * Ask the dhcp server for an EFI binary. If we get one, check for a 259 * device tree in the same folder. Then boot everything. If the file was 260 * not an EFI binary, we just return from the bootefi command and continue. 261 */ 262 #define BOOTENV_EFI_RUN_DHCP \ 263 "setenv efi_fdtfile ${fdtfile}; " \ 264 BOOTENV_EFI_SET_FDTFILE_FALLBACK \ 265 "setenv efi_old_vci ${bootp_vci};" \ 266 "setenv efi_old_arch ${bootp_arch};" \ 267 "setenv bootp_vci " BOOTENV_EFI_PXE_VCI ";" \ 268 "setenv bootp_arch " BOOTENV_EFI_PXE_ARCH ";" \ 269 "if dhcp ${kernel_addr_r}; then " \ 270 "tftpboot ${fdt_addr_r} dtb/${efi_fdtfile};" \ 271 "if fdt addr ${fdt_addr_r}; then " \ 272 "bootefi ${kernel_addr_r} ${fdt_addr_r}; " \ 273 "else " \ 274 "bootefi ${kernel_addr_r} ${fdtcontroladdr};" \ 275 "fi;" \ 276 "fi;" \ 277 "setenv bootp_vci ${efi_old_vci};" \ 278 "setenv bootp_arch ${efi_old_arch};" \ 279 "setenv efi_fdtfile;" \ 280 "setenv efi_old_arch;" \ 281 "setenv efi_old_vci;" 282 #else 283 #define BOOTENV_EFI_RUN_DHCP 284 #endif 285 #define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \ 286 "bootcmd_dhcp=" \ 287 BOOTENV_RUN_NET_USB_START \ 288 BOOTENV_RUN_NET_PCI_ENUM \ 289 "if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \ 290 "source ${scriptaddr}; " \ 291 "fi;" \ 292 BOOTENV_EFI_RUN_DHCP \ 293 "\0" 294 #define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \ 295 "dhcp " 296 #else 297 #define BOOTENV_DEV_DHCP \ 298 BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP 299 #define BOOTENV_DEV_NAME_DHCP \ 300 BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP 301 #endif 302 303 #if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE) 304 #define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \ 305 "bootcmd_pxe=" \ 306 BOOTENV_RUN_NET_USB_START \ 307 BOOTENV_RUN_NET_PCI_ENUM \ 308 "dhcp; " \ 309 "if pxe get; then " \ 310 "pxe boot; " \ 311 "fi\0" 312 #define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \ 313 "pxe " 314 #else 315 #define BOOTENV_DEV_PXE \ 316 BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE 317 #define BOOTENV_DEV_NAME_PXE \ 318 BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE 319 #endif 320 321 #define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \ 322 BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance) 323 #define BOOTENV_BOOT_TARGETS \ 324 "boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0" 325 326 #define BOOTENV_DEV(devtypeu, devtypel, instance) \ 327 BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance) 328 #define BOOTENV \ 329 BOOTENV_SHARED_HOST \ 330 BOOTENV_SHARED_MMC \ 331 BOOTENV_SHARED_PCI \ 332 BOOTENV_SHARED_USB \ 333 BOOTENV_SHARED_SATA \ 334 BOOTENV_SHARED_SCSI \ 335 BOOTENV_SHARED_IDE \ 336 BOOTENV_SHARED_UBIFS \ 337 BOOTENV_SHARED_EFI \ 338 "boot_prefixes=/ /boot/\0" \ 339 "boot_scripts=boot.scr.uimg boot.scr\0" \ 340 "boot_script_dhcp=boot.scr.uimg\0" \ 341 BOOTENV_BOOT_TARGETS \ 342 \ 343 "boot_extlinux=" \ 344 "sysboot ${devtype} ${devnum}:${distro_bootpart} any " \ 345 "${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \ 346 \ 347 "scan_dev_for_extlinux=" \ 348 "if test -e ${devtype} " \ 349 "${devnum}:${distro_bootpart} " \ 350 "${prefix}extlinux/extlinux.conf; then " \ 351 "echo Found ${prefix}extlinux/extlinux.conf; " \ 352 "run boot_extlinux; " \ 353 "echo SCRIPT FAILED: continuing...; " \ 354 "fi\0" \ 355 \ 356 "boot_a_script=" \ 357 "load ${devtype} ${devnum}:${distro_bootpart} " \ 358 "${scriptaddr} ${prefix}${script}; " \ 359 "source ${scriptaddr}\0" \ 360 \ 361 "scan_dev_for_scripts=" \ 362 "for script in ${boot_scripts}; do " \ 363 "if test -e ${devtype} " \ 364 "${devnum}:${distro_bootpart} " \ 365 "${prefix}${script}; then " \ 366 "echo Found U-Boot script " \ 367 "${prefix}${script}; " \ 368 "run boot_a_script; " \ 369 "echo SCRIPT FAILED: continuing...; " \ 370 "fi; " \ 371 "done\0" \ 372 \ 373 "scan_dev_for_boot=" \ 374 "echo Scanning ${devtype} " \ 375 "${devnum}:${distro_bootpart}...; " \ 376 "for prefix in ${boot_prefixes}; do " \ 377 "run scan_dev_for_extlinux; " \ 378 "run scan_dev_for_scripts; " \ 379 "done;" \ 380 SCAN_DEV_FOR_EFI \ 381 "\0" \ 382 \ 383 "scan_dev_for_boot_part=" \ 384 "part list ${devtype} ${devnum} -bootable devplist; " \ 385 "env exists devplist || setenv devplist 1; " \ 386 "for distro_bootpart in ${devplist}; do " \ 387 "if fstype ${devtype} " \ 388 "${devnum}:${distro_bootpart} " \ 389 "bootfstype; then " \ 390 "run scan_dev_for_boot; " \ 391 "fi; " \ 392 "done\0" \ 393 \ 394 BOOT_TARGET_DEVICES(BOOTENV_DEV) \ 395 \ 396 "distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT \ 397 "for target in ${boot_targets}; do " \ 398 "run bootcmd_${target}; " \ 399 "done\0" 400 401 #ifndef CONFIG_BOOTCOMMAND 402 #define CONFIG_BOOTCOMMAND "run distro_bootcmd" 403 #endif 404 405 #endif /* _CONFIG_CMD_DISTRO_BOOTCMD_H */ 406