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 #endif 95 #endif 96 97 #ifdef BOOTEFI_NAME 98 #if defined(CONFIG_ARM) && !defined(CONFIG_ARM64) 99 /* 100 * On 32bit ARM systems there is a reasonable number of systems that follow 101 * the $soc-$board$boardver.dtb name scheme for their device trees. Use that 102 * scheme if we don't have an explicit fdtfile variable. 103 */ 104 #define BOOTENV_EFI_SET_FDTFILE_FALLBACK \ 105 "if test -z \"${fdtfile}\" -a -n \"${soc}\"; then " \ 106 "setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; " \ 107 "fi; " 108 #else 109 #define BOOTENV_EFI_SET_FDTFILE_FALLBACK 110 #endif 111 112 113 #define BOOTENV_SHARED_EFI \ 114 "boot_efi_binary=" \ 115 "if fdt addr ${fdt_addr_r}; then " \ 116 "bootefi bootmgr ${fdt_addr_r};" \ 117 "else " \ 118 "bootefi bootmgr ${fdtcontroladdr};" \ 119 "fi;" \ 120 "load ${devtype} ${devnum}:${distro_bootpart} " \ 121 "${kernel_addr_r} efi/boot/"BOOTEFI_NAME"; " \ 122 "if fdt addr ${fdt_addr_r}; then " \ 123 "bootefi ${kernel_addr_r} ${fdt_addr_r};" \ 124 "else " \ 125 "bootefi ${kernel_addr_r} ${fdtcontroladdr};" \ 126 "fi\0" \ 127 \ 128 "load_efi_dtb=" \ 129 "load ${devtype} ${devnum}:${distro_bootpart} " \ 130 "${fdt_addr_r} ${prefix}${efi_fdtfile}\0" \ 131 \ 132 "efi_dtb_prefixes=/ /dtb/ /dtb/current/\0" \ 133 "scan_dev_for_efi=" \ 134 "setenv efi_fdtfile ${fdtfile}; " \ 135 BOOTENV_EFI_SET_FDTFILE_FALLBACK \ 136 "for prefix in ${efi_dtb_prefixes}; do " \ 137 "if test -e ${devtype} " \ 138 "${devnum}:${distro_bootpart} " \ 139 "${prefix}${efi_fdtfile}; then " \ 140 "run load_efi_dtb; " \ 141 "fi;" \ 142 "done;" \ 143 "if test -e ${devtype} ${devnum}:${distro_bootpart} " \ 144 "efi/boot/"BOOTEFI_NAME"; then " \ 145 "echo Found EFI removable media binary " \ 146 "efi/boot/"BOOTEFI_NAME"; " \ 147 "run boot_efi_binary; " \ 148 "echo EFI LOAD FAILED: continuing...; " \ 149 "fi; " \ 150 "setenv efi_fdtfile\0" 151 #define SCAN_DEV_FOR_EFI "run scan_dev_for_efi;" 152 #else 153 #define BOOTENV_SHARED_EFI 154 #define SCAN_DEV_FOR_EFI 155 #endif 156 157 #ifdef CONFIG_SATA 158 #define BOOTENV_SHARED_SATA BOOTENV_SHARED_BLKDEV(sata) 159 #define BOOTENV_DEV_SATA BOOTENV_DEV_BLKDEV 160 #define BOOTENV_DEV_NAME_SATA BOOTENV_DEV_NAME_BLKDEV 161 #else 162 #define BOOTENV_SHARED_SATA 163 #define BOOTENV_DEV_SATA \ 164 BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_SATA 165 #define BOOTENV_DEV_NAME_SATA \ 166 BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_SATA 167 #endif 168 169 #ifdef CONFIG_SCSI 170 #define BOOTENV_RUN_SCSI_INIT "run scsi_init; " 171 #define BOOTENV_SET_SCSI_NEED_INIT "setenv scsi_need_init; " 172 #define BOOTENV_SHARED_SCSI \ 173 "scsi_init=" \ 174 "if ${scsi_need_init}; then " \ 175 "setenv scsi_need_init false; " \ 176 "scsi scan; " \ 177 "fi\0" \ 178 \ 179 "scsi_boot=" \ 180 BOOTENV_RUN_SCSI_INIT \ 181 BOOTENV_SHARED_BLKDEV_BODY(scsi) 182 #define BOOTENV_DEV_SCSI BOOTENV_DEV_BLKDEV 183 #define BOOTENV_DEV_NAME_SCSI BOOTENV_DEV_NAME_BLKDEV 184 #else 185 #define BOOTENV_RUN_SCSI_INIT 186 #define BOOTENV_SET_SCSI_NEED_INIT 187 #define BOOTENV_SHARED_SCSI 188 #define BOOTENV_DEV_SCSI \ 189 BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI 190 #define BOOTENV_DEV_NAME_SCSI \ 191 BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI 192 #endif 193 194 #ifdef CONFIG_IDE 195 #define BOOTENV_SHARED_IDE BOOTENV_SHARED_BLKDEV(ide) 196 #define BOOTENV_DEV_IDE BOOTENV_DEV_BLKDEV 197 #define BOOTENV_DEV_NAME_IDE BOOTENV_DEV_NAME_BLKDEV 198 #else 199 #define BOOTENV_SHARED_IDE 200 #define BOOTENV_DEV_IDE \ 201 BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_IDE 202 #define BOOTENV_DEV_NAME_IDE \ 203 BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_IDE 204 #endif 205 206 #if defined(CONFIG_DM_PCI) 207 #define BOOTENV_RUN_NET_PCI_ENUM "run boot_net_pci_enum; " 208 #define BOOTENV_SHARED_PCI \ 209 "boot_net_pci_enum=pci enum\0" 210 #else 211 #define BOOTENV_RUN_NET_PCI_ENUM 212 #define BOOTENV_SHARED_PCI 213 #endif 214 215 #ifdef CONFIG_CMD_USB 216 #define BOOTENV_RUN_NET_USB_START "run boot_net_usb_start; " 217 #define BOOTENV_SHARED_USB \ 218 "boot_net_usb_start=usb start\0" \ 219 "usb_boot=" \ 220 "usb start; " \ 221 BOOTENV_SHARED_BLKDEV_BODY(usb) 222 #define BOOTENV_DEV_USB BOOTENV_DEV_BLKDEV 223 #define BOOTENV_DEV_NAME_USB BOOTENV_DEV_NAME_BLKDEV 224 #else 225 #define BOOTENV_RUN_NET_USB_START 226 #define BOOTENV_SHARED_USB 227 #define BOOTENV_DEV_USB \ 228 BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB 229 #define BOOTENV_DEV_NAME_USB \ 230 BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB 231 #endif 232 233 #if defined(CONFIG_CMD_DHCP) 234 #if defined(CONFIG_EFI_LOADER) 235 #if defined(CONFIG_ARM64) 236 #define BOOTENV_EFI_PXE_ARCH "0xb" 237 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00011:UNDI:003000" 238 #elif defined(CONFIG_ARM) 239 #define BOOTENV_EFI_PXE_ARCH "0xa" 240 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00010:UNDI:003000" 241 #elif defined(CONFIG_X86) 242 /* Always assume we're running 64bit */ 243 #define BOOTENV_EFI_PXE_ARCH "0x7" 244 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00007:UNDI:003000" 245 #else 246 #error Please specify an EFI client identifier 247 #endif 248 249 /* 250 * Ask the dhcp server for an EFI binary. If we get one, check for a 251 * device tree in the same folder. Then boot everything. If the file was 252 * not an EFI binary, we just return from the bootefi command and continue. 253 */ 254 #define BOOTENV_EFI_RUN_DHCP \ 255 "setenv efi_fdtfile ${fdtfile}; " \ 256 BOOTENV_EFI_SET_FDTFILE_FALLBACK \ 257 "setenv efi_old_vci ${bootp_vci};" \ 258 "setenv efi_old_arch ${bootp_arch};" \ 259 "setenv bootp_vci " BOOTENV_EFI_PXE_VCI ";" \ 260 "setenv bootp_arch " BOOTENV_EFI_PXE_ARCH ";" \ 261 "if dhcp ${kernel_addr_r}; then " \ 262 "tftpboot ${fdt_addr_r} dtb/${efi_fdtfile};" \ 263 "if fdt addr ${fdt_addr_r}; then " \ 264 "bootefi ${kernel_addr_r} ${fdt_addr_r}; " \ 265 "else " \ 266 "bootefi ${kernel_addr_r} ${fdtcontroladdr};" \ 267 "fi;" \ 268 "fi;" \ 269 "setenv bootp_vci ${efi_old_vci};" \ 270 "setenv bootp_arch ${efi_old_arch};" \ 271 "setenv efi_fdtfile;" \ 272 "setenv efi_old_arch;" \ 273 "setenv efi_old_vci;" 274 #else 275 #define BOOTENV_EFI_RUN_DHCP 276 #endif 277 #define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \ 278 "bootcmd_dhcp=" \ 279 BOOTENV_RUN_NET_USB_START \ 280 BOOTENV_RUN_NET_PCI_ENUM \ 281 "if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \ 282 "source ${scriptaddr}; " \ 283 "fi;" \ 284 BOOTENV_EFI_RUN_DHCP \ 285 "\0" 286 #define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \ 287 "dhcp " 288 #else 289 #define BOOTENV_DEV_DHCP \ 290 BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP 291 #define BOOTENV_DEV_NAME_DHCP \ 292 BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP 293 #endif 294 295 #if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE) 296 #define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \ 297 "bootcmd_pxe=" \ 298 BOOTENV_RUN_NET_USB_START \ 299 BOOTENV_RUN_NET_PCI_ENUM \ 300 "dhcp; " \ 301 "if pxe get; then " \ 302 "pxe boot; " \ 303 "fi\0" 304 #define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \ 305 "pxe " 306 #else 307 #define BOOTENV_DEV_PXE \ 308 BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE 309 #define BOOTENV_DEV_NAME_PXE \ 310 BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE 311 #endif 312 313 #define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \ 314 BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance) 315 #define BOOTENV_BOOT_TARGETS \ 316 "boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0" 317 318 #define BOOTENV_DEV(devtypeu, devtypel, instance) \ 319 BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance) 320 #define BOOTENV \ 321 BOOTENV_SHARED_HOST \ 322 BOOTENV_SHARED_MMC \ 323 BOOTENV_SHARED_PCI \ 324 BOOTENV_SHARED_USB \ 325 BOOTENV_SHARED_SATA \ 326 BOOTENV_SHARED_SCSI \ 327 BOOTENV_SHARED_IDE \ 328 BOOTENV_SHARED_UBIFS \ 329 BOOTENV_SHARED_EFI \ 330 "boot_prefixes=/ /boot/\0" \ 331 "boot_scripts=boot.scr.uimg boot.scr\0" \ 332 "boot_script_dhcp=boot.scr.uimg\0" \ 333 BOOTENV_BOOT_TARGETS \ 334 \ 335 "boot_extlinux=" \ 336 "sysboot ${devtype} ${devnum}:${distro_bootpart} any " \ 337 "${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \ 338 \ 339 "scan_dev_for_extlinux=" \ 340 "if test -e ${devtype} " \ 341 "${devnum}:${distro_bootpart} " \ 342 "${prefix}extlinux/extlinux.conf; then " \ 343 "echo Found ${prefix}extlinux/extlinux.conf; " \ 344 "run boot_extlinux; " \ 345 "echo SCRIPT FAILED: continuing...; " \ 346 "fi\0" \ 347 \ 348 "boot_a_script=" \ 349 "load ${devtype} ${devnum}:${distro_bootpart} " \ 350 "${scriptaddr} ${prefix}${script}; " \ 351 "source ${scriptaddr}\0" \ 352 \ 353 "scan_dev_for_scripts=" \ 354 "for script in ${boot_scripts}; do " \ 355 "if test -e ${devtype} " \ 356 "${devnum}:${distro_bootpart} " \ 357 "${prefix}${script}; then " \ 358 "echo Found U-Boot script " \ 359 "${prefix}${script}; " \ 360 "run boot_a_script; " \ 361 "echo SCRIPT FAILED: continuing...; " \ 362 "fi; " \ 363 "done\0" \ 364 \ 365 "scan_dev_for_boot=" \ 366 "echo Scanning ${devtype} " \ 367 "${devnum}:${distro_bootpart}...; " \ 368 "for prefix in ${boot_prefixes}; do " \ 369 "run scan_dev_for_extlinux; " \ 370 "run scan_dev_for_scripts; " \ 371 "done;" \ 372 SCAN_DEV_FOR_EFI \ 373 "\0" \ 374 \ 375 "scan_dev_for_boot_part=" \ 376 "part list ${devtype} ${devnum} -bootable devplist; " \ 377 "env exists devplist || setenv devplist 1; " \ 378 "for distro_bootpart in ${devplist}; do " \ 379 "if fstype ${devtype} " \ 380 "${devnum}:${distro_bootpart} " \ 381 "bootfstype; then " \ 382 "run scan_dev_for_boot; " \ 383 "fi; " \ 384 "done\0" \ 385 \ 386 BOOT_TARGET_DEVICES(BOOTENV_DEV) \ 387 \ 388 "distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT \ 389 "for target in ${boot_targets}; do " \ 390 "run bootcmd_${target}; " \ 391 "done\0" 392 393 #ifndef CONFIG_BOOTCOMMAND 394 #define CONFIG_BOOTCOMMAND "run distro_bootcmd" 395 #endif 396 397 #endif /* _CONFIG_CMD_DISTRO_BOOTCMD_H */ 398