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