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