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 /* We need the part command */ 30 #define CONFIG_PARTITION_UUIDS 31 #define CONFIG_CMD_PART 32 33 #define BOOTENV_SHARED_BLKDEV_BODY(devtypel) \ 34 "if " #devtypel " dev ${devnum}; then " \ 35 "setenv devtype " #devtypel "; " \ 36 "run scan_dev_for_boot_part; " \ 37 "fi\0" 38 39 #define BOOTENV_SHARED_BLKDEV(devtypel) \ 40 #devtypel "_boot=" \ 41 BOOTENV_SHARED_BLKDEV_BODY(devtypel) 42 43 #define BOOTENV_DEV_BLKDEV(devtypeu, devtypel, instance) \ 44 "bootcmd_" #devtypel #instance "=" \ 45 "setenv devnum " #instance "; " \ 46 "run " #devtypel "_boot\0" 47 48 #define BOOTENV_DEV_NAME_BLKDEV(devtypeu, devtypel, instance) \ 49 #devtypel #instance " " 50 51 #ifdef CONFIG_SANDBOX 52 #define BOOTENV_SHARED_HOST BOOTENV_SHARED_BLKDEV(host) 53 #define BOOTENV_DEV_HOST BOOTENV_DEV_BLKDEV 54 #define BOOTENV_DEV_NAME_HOST BOOTENV_DEV_NAME_BLKDEV 55 #else 56 #define BOOTENV_SHARED_HOST 57 #define BOOTENV_DEV_HOST \ 58 BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX 59 #define BOOTENV_DEV_NAME_HOST \ 60 BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX 61 #endif 62 63 #ifdef CONFIG_CMD_MMC 64 #define BOOTENV_SHARED_MMC BOOTENV_SHARED_BLKDEV(mmc) 65 #define BOOTENV_DEV_MMC BOOTENV_DEV_BLKDEV 66 #define BOOTENV_DEV_NAME_MMC BOOTENV_DEV_NAME_BLKDEV 67 #else 68 #define BOOTENV_SHARED_MMC 69 #define BOOTENV_DEV_MMC \ 70 BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC 71 #define BOOTENV_DEV_NAME_MMC \ 72 BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC 73 #endif 74 75 #ifdef CONFIG_CMD_UBIFS 76 #define BOOTENV_SHARED_UBIFS \ 77 "ubifs_boot=" \ 78 "if ubi part UBI && ubifsmount ubi${devnum}:boot; then " \ 79 "setenv devtype ubi; " \ 80 "setenv bootpart 0; " \ 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 #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 "load ${devtype} ${devnum}:${distro_bootpart} " \ 120 "${kernel_addr_r} efi/boot/"BOOTEFI_NAME"; " \ 121 "if fdt addr ${fdt_addr_r}; then " \ 122 "bootefi ${kernel_addr_r} ${fdt_addr_r};" \ 123 "else " \ 124 "bootefi ${kernel_addr_r} ${fdtcontroladdr};" \ 125 "fi\0" \ 126 \ 127 "load_efi_dtb=" \ 128 "load ${devtype} ${devnum}:${distro_bootpart} " \ 129 "${fdt_addr_r} ${prefix}${efi_fdtfile}\0" \ 130 \ 131 "efi_dtb_prefixes=/ /dtb/ /dtb/current/\0" \ 132 "scan_dev_for_efi=" \ 133 "setenv efi_fdtfile ${fdtfile}; " \ 134 BOOTENV_EFI_SET_FDTFILE_FALLBACK \ 135 "for prefix in ${efi_dtb_prefixes}; do " \ 136 "if test -e ${devtype} " \ 137 "${devnum}:${distro_bootpart} " \ 138 "${prefix}${efi_fdtfile}; then " \ 139 "run load_efi_dtb; " \ 140 "fi;" \ 141 "done;" \ 142 "if test -e ${devtype} ${devnum}:${distro_bootpart} " \ 143 "efi/boot/"BOOTEFI_NAME"; then " \ 144 "echo Found EFI removable media binary " \ 145 "efi/boot/"BOOTEFI_NAME"; " \ 146 "run boot_efi_binary; " \ 147 "echo EFI LOAD FAILED: continuing...; " \ 148 "fi; " \ 149 "setenv efi_fdtfile\0" 150 #define SCAN_DEV_FOR_EFI "run scan_dev_for_efi;" 151 #else 152 #define BOOTENV_SHARED_EFI 153 #define SCAN_DEV_FOR_EFI 154 #endif 155 156 #ifdef CONFIG_CMD_SATA 157 #define BOOTENV_SHARED_SATA BOOTENV_SHARED_BLKDEV(sata) 158 #define BOOTENV_DEV_SATA BOOTENV_DEV_BLKDEV 159 #define BOOTENV_DEV_NAME_SATA BOOTENV_DEV_NAME_BLKDEV 160 #else 161 #define BOOTENV_SHARED_SATA 162 #define BOOTENV_DEV_SATA \ 163 BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA 164 #define BOOTENV_DEV_NAME_SATA \ 165 BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA 166 #endif 167 168 #ifdef CONFIG_SCSI 169 #define BOOTENV_RUN_SCSI_INIT "run scsi_init; " 170 #define BOOTENV_SET_SCSI_NEED_INIT "setenv scsi_need_init; " 171 #define BOOTENV_SHARED_SCSI \ 172 "scsi_init=" \ 173 "if ${scsi_need_init}; then " \ 174 "setenv scsi_need_init false; " \ 175 "scsi scan; " \ 176 "fi\0" \ 177 \ 178 "scsi_boot=" \ 179 BOOTENV_RUN_SCSI_INIT \ 180 BOOTENV_SHARED_BLKDEV_BODY(scsi) 181 #define BOOTENV_DEV_SCSI BOOTENV_DEV_BLKDEV 182 #define BOOTENV_DEV_NAME_SCSI BOOTENV_DEV_NAME_BLKDEV 183 #else 184 #define BOOTENV_RUN_SCSI_INIT 185 #define BOOTENV_SET_SCSI_NEED_INIT 186 #define BOOTENV_SHARED_SCSI 187 #define BOOTENV_DEV_SCSI \ 188 BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI 189 #define BOOTENV_DEV_NAME_SCSI \ 190 BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI 191 #endif 192 193 #ifdef CONFIG_CMD_IDE 194 #define BOOTENV_SHARED_IDE BOOTENV_SHARED_BLKDEV(ide) 195 #define BOOTENV_DEV_IDE BOOTENV_DEV_BLKDEV 196 #define BOOTENV_DEV_NAME_IDE BOOTENV_DEV_NAME_BLKDEV 197 #else 198 #define BOOTENV_SHARED_IDE 199 #define BOOTENV_DEV_IDE \ 200 BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE 201 #define BOOTENV_DEV_NAME_IDE \ 202 BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE 203 #endif 204 205 #if defined(CONFIG_CMD_PCI_ENUM) || defined(CONFIG_DM_PCI) 206 #define BOOTENV_RUN_NET_PCI_ENUM "run boot_net_pci_enum; " 207 #define BOOTENV_SHARED_PCI \ 208 "boot_net_pci_enum=pci enum\0" 209 #else 210 #define BOOTENV_RUN_NET_PCI_ENUM 211 #define BOOTENV_SHARED_PCI 212 #endif 213 214 #ifdef CONFIG_CMD_USB 215 #define BOOTENV_RUN_NET_USB_START "run boot_net_usb_start; " 216 #define BOOTENV_SHARED_USB \ 217 "boot_net_usb_start=usb start\0" \ 218 "usb_boot=" \ 219 "usb start; " \ 220 BOOTENV_SHARED_BLKDEV_BODY(usb) 221 #define BOOTENV_DEV_USB BOOTENV_DEV_BLKDEV 222 #define BOOTENV_DEV_NAME_USB BOOTENV_DEV_NAME_BLKDEV 223 #else 224 #define BOOTENV_RUN_NET_USB_START 225 #define BOOTENV_SHARED_USB 226 #define BOOTENV_DEV_USB \ 227 BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB 228 #define BOOTENV_DEV_NAME_USB \ 229 BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB 230 #endif 231 232 #if defined(CONFIG_CMD_DHCP) 233 #if defined(CONFIG_EFI_LOADER) 234 #if defined(CONFIG_ARM64) 235 #define BOOTENV_EFI_PXE_ARCH "0xb" 236 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00011:UNDI:003000" 237 #elif defined(CONFIG_ARM) 238 #define BOOTENV_EFI_PXE_ARCH "0xa" 239 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00010:UNDI:003000" 240 #elif defined(CONFIG_X86) 241 /* Always assume we're running 64bit */ 242 #define BOOTENV_EFI_PXE_ARCH "0x7" 243 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00007:UNDI:003000" 244 #else 245 #error Please specify an EFI client identifier 246 #endif 247 248 /* 249 * Ask the dhcp server for an EFI binary. If we get one, check for a 250 * device tree in the same folder. Then boot everything. If the file was 251 * not an EFI binary, we just return from the bootefi command and continue. 252 */ 253 #define BOOTENV_EFI_RUN_DHCP \ 254 "setenv efi_fdtfile ${fdtfile}; " \ 255 BOOTENV_EFI_SET_FDTFILE_FALLBACK \ 256 "setenv efi_old_vci ${bootp_vci};" \ 257 "setenv efi_old_arch ${bootp_arch};" \ 258 "setenv bootp_vci " BOOTENV_EFI_PXE_VCI ";" \ 259 "setenv bootp_arch " BOOTENV_EFI_PXE_ARCH ";" \ 260 "if dhcp ${kernel_addr_r}; then " \ 261 "tftpboot ${fdt_addr_r} dtb/${efi_fdtfile};" \ 262 "if fdt addr ${fdt_addr_r}; then " \ 263 "bootefi ${kernel_addr_r} ${fdt_addr_r}; " \ 264 "else " \ 265 "bootefi ${kernel_addr_r} ${fdtcontroladdr};" \ 266 "fi;" \ 267 "fi;" \ 268 "setenv bootp_vci ${efi_old_vci};" \ 269 "setenv bootp_arch ${efi_old_arch};" \ 270 "setenv efi_fdtfile;" \ 271 "setenv efi_old_arch;" \ 272 "setenv efi_old_vci;" 273 #else 274 #define BOOTENV_EFI_RUN_DHCP 275 #endif 276 #define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \ 277 "bootcmd_dhcp=" \ 278 BOOTENV_RUN_NET_USB_START \ 279 BOOTENV_RUN_NET_PCI_ENUM \ 280 "if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \ 281 "source ${scriptaddr}; " \ 282 "fi;" \ 283 BOOTENV_EFI_RUN_DHCP \ 284 "\0" 285 #define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \ 286 "dhcp " 287 #else 288 #define BOOTENV_DEV_DHCP \ 289 BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP 290 #define BOOTENV_DEV_NAME_DHCP \ 291 BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP 292 #endif 293 294 #if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE) 295 #define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \ 296 "bootcmd_pxe=" \ 297 BOOTENV_RUN_NET_USB_START \ 298 BOOTENV_RUN_NET_PCI_ENUM \ 299 "dhcp; " \ 300 "if pxe get; then " \ 301 "pxe boot; " \ 302 "fi\0" 303 #define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \ 304 "pxe " 305 #else 306 #define BOOTENV_DEV_PXE \ 307 BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE 308 #define BOOTENV_DEV_NAME_PXE \ 309 BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE 310 #endif 311 312 #define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \ 313 BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance) 314 #define BOOTENV_BOOT_TARGETS \ 315 "boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0" 316 317 #define BOOTENV_DEV(devtypeu, devtypel, instance) \ 318 BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance) 319 #define BOOTENV \ 320 BOOTENV_SHARED_HOST \ 321 BOOTENV_SHARED_MMC \ 322 BOOTENV_SHARED_PCI \ 323 BOOTENV_SHARED_USB \ 324 BOOTENV_SHARED_SATA \ 325 BOOTENV_SHARED_SCSI \ 326 BOOTENV_SHARED_IDE \ 327 BOOTENV_SHARED_UBIFS \ 328 BOOTENV_SHARED_EFI \ 329 "boot_prefixes=/ /boot/\0" \ 330 "boot_scripts=boot.scr.uimg boot.scr\0" \ 331 "boot_script_dhcp=boot.scr.uimg\0" \ 332 BOOTENV_BOOT_TARGETS \ 333 \ 334 "boot_extlinux=" \ 335 "sysboot ${devtype} ${devnum}:${distro_bootpart} any " \ 336 "${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \ 337 \ 338 "scan_dev_for_extlinux=" \ 339 "if test -e ${devtype} " \ 340 "${devnum}:${distro_bootpart} " \ 341 "${prefix}extlinux/extlinux.conf; then " \ 342 "echo Found ${prefix}extlinux/extlinux.conf; " \ 343 "run boot_extlinux; " \ 344 "echo SCRIPT FAILED: continuing...; " \ 345 "fi\0" \ 346 \ 347 "boot_a_script=" \ 348 "load ${devtype} ${devnum}:${distro_bootpart} " \ 349 "${scriptaddr} ${prefix}${script}; " \ 350 "source ${scriptaddr}\0" \ 351 \ 352 "scan_dev_for_scripts=" \ 353 "for script in ${boot_scripts}; do " \ 354 "if test -e ${devtype} " \ 355 "${devnum}:${distro_bootpart} " \ 356 "${prefix}${script}; then " \ 357 "echo Found U-Boot script " \ 358 "${prefix}${script}; " \ 359 "run boot_a_script; " \ 360 "echo SCRIPT FAILED: continuing...; " \ 361 "fi; " \ 362 "done\0" \ 363 \ 364 "scan_dev_for_boot=" \ 365 "echo Scanning ${devtype} " \ 366 "${devnum}:${distro_bootpart}...; " \ 367 "for prefix in ${boot_prefixes}; do " \ 368 "run scan_dev_for_extlinux; " \ 369 "run scan_dev_for_scripts; " \ 370 "done;" \ 371 SCAN_DEV_FOR_EFI \ 372 "\0" \ 373 \ 374 "scan_dev_for_boot_part=" \ 375 "part list ${devtype} ${devnum} -bootable devplist; " \ 376 "env exists devplist || setenv devplist 1; " \ 377 "for distro_bootpart in ${devplist}; do " \ 378 "if fstype ${devtype} " \ 379 "${devnum}:${distro_bootpart} " \ 380 "bootfstype; then " \ 381 "run scan_dev_for_boot; " \ 382 "fi; " \ 383 "done\0" \ 384 \ 385 BOOT_TARGET_DEVICES(BOOTENV_DEV) \ 386 \ 387 "distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT \ 388 "for target in ${boot_targets}; do " \ 389 "run bootcmd_${target}; " \ 390 "done\0" 391 392 #ifndef CONFIG_BOOTCOMMAND 393 #define CONFIG_BOOTCOMMAND "run distro_bootcmd" 394 #endif 395 396 #endif /* _CONFIG_CMD_DISTRO_BOOTCMD_H */ 397