include/config_distro_bootcmd.h

   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                 "env exists bootubipart || " \
  75                         "env set bootubipart UBI; " \
  76                 "env exists bootubivol || " \
  77                         "env set bootubivol boot; " \
  78                 "if ubi part ${bootubipart} && " \
  79                         "ubifsmount ubi${devnum}:${bootubivol}; " \
  80                 "then " \
  81                         "setenv devtype ubi; " \
  82                         "run scan_dev_for_boot; " \
  83                 "fi\0"
  84 #define BOOTENV_DEV_UBIFS       BOOTENV_DEV_BLKDEV
  85 #define BOOTENV_DEV_NAME_UBIFS  BOOTENV_DEV_NAME_BLKDEV
  86 #else
  87 #define BOOTENV_SHARED_UBIFS
  88 #define BOOTENV_DEV_UBIFS \
  89         BOOT_TARGET_DEVICES_references_UBIFS_without_CONFIG_CMD_UBIFS
  90 #define BOOTENV_DEV_NAME_UBIFS \
  91         BOOT_TARGET_DEVICES_references_UBIFS_without_CONFIG_CMD_UBIFS
  92 #endif
  93
  94 #ifdef CONFIG_EFI_LOADER
  95 #if defined(CONFIG_ARM64)
  96 #define BOOTEFI_NAME "bootaa64.efi"
  97 #elif defined(CONFIG_ARM)
  98 #define BOOTEFI_NAME "bootarm.efi"
  99 #elif defined(CONFIG_X86_RUN_32BIT)
 100 #define BOOTEFI_NAME "bootia32.efi"
 101 #elif defined(CONFIG_X86_RUN_64BIT)
 102 #define BOOTEFI_NAME "bootx64.efi"
 103 #endif
 104 #endif
 105
 106 #ifdef BOOTEFI_NAME
 107 #if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
 108 /*
 109  * On 32bit ARM systems there is a reasonable number of systems that follow
 110  * the $soc-$board$boardver.dtb name scheme for their device trees. Use that
 111  * scheme if we don't have an explicit fdtfile variable.
 112  */
 113 #define BOOTENV_EFI_SET_FDTFILE_FALLBACK                                  \
 114         "if test -z \"${fdtfile}\" -a -n \"${soc}\"; then "               \
 115           "setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; "           \
 116         "fi; "
 117 #else
 118 #define BOOTENV_EFI_SET_FDTFILE_FALLBACK
 119 #endif
 120
 121
 122 #define BOOTENV_SHARED_EFI                                                \
 123         "boot_efi_binary="                                                \
 124                 "if fdt addr ${fdt_addr_r}; then "                        \
 125                         "bootefi bootmgr ${fdt_addr_r};"                  \
 126                 "else "                                                   \
 127                         "bootefi bootmgr ${fdtcontroladdr};"              \
 128                 "fi;"                                                     \
 129                 "load ${devtype} ${devnum}:${distro_bootpart} "           \
 130                         "${kernel_addr_r} efi/boot/"BOOTEFI_NAME"; "      \
 131                 "if fdt addr ${fdt_addr_r}; then "                        \
 132                         "bootefi ${kernel_addr_r} ${fdt_addr_r};"         \
 133                 "else "                                                   \
 134                         "bootefi ${kernel_addr_r} ${fdtcontroladdr};"     \
 135                 "fi\0"                                                    \
 136         \
 137         "load_efi_dtb="                                                   \
 138                 "load ${devtype} ${devnum}:${distro_bootpart} "           \
 139                         "${fdt_addr_r} ${prefix}${efi_fdtfile}\0"         \
 140         \
 141         "efi_dtb_prefixes=/ /dtb/ /dtb/current/\0"                        \
 142         "scan_dev_for_efi="                                               \
 143                 "setenv efi_fdtfile ${fdtfile}; "                         \
 144                 BOOTENV_EFI_SET_FDTFILE_FALLBACK                          \
 145                 "for prefix in ${efi_dtb_prefixes}; do "                  \
 146                         "if test -e ${devtype} "                          \
 147                                         "${devnum}:${distro_bootpart} "   \
 148                                         "${prefix}${efi_fdtfile}; then "  \
 149                                 "run load_efi_dtb; "                      \
 150                         "fi;"                                             \
 151                 "done;"                                                   \
 152                 "if test -e ${devtype} ${devnum}:${distro_bootpart} "     \
 153                                         "efi/boot/"BOOTEFI_NAME"; then "  \
 154                                 "echo Found EFI removable media binary "  \
 155                                         "efi/boot/"BOOTEFI_NAME"; "       \
 156                                 "run boot_efi_binary; "                   \
 157                                 "echo EFI LOAD FAILED: continuing...; "   \
 158                 "fi; "                                                    \
 159                 "setenv efi_fdtfile\0"
 160 #define SCAN_DEV_FOR_EFI "run scan_dev_for_efi;"
 161 #else
 162 #define BOOTENV_SHARED_EFI
 163 #define SCAN_DEV_FOR_EFI
 164 #endif
 165
 166 #ifdef CONFIG_SATA
 167 #define BOOTENV_SHARED_SATA     BOOTENV_SHARED_BLKDEV(sata)
 168 #define BOOTENV_DEV_SATA        BOOTENV_DEV_BLKDEV
 169 #define BOOTENV_DEV_NAME_SATA   BOOTENV_DEV_NAME_BLKDEV
 170 #else
 171 #define BOOTENV_SHARED_SATA
 172 #define BOOTENV_DEV_SATA \
 173         BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_SATA
 174 #define BOOTENV_DEV_NAME_SATA \
 175         BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_SATA
 176 #endif
 177
 178 #ifdef CONFIG_SCSI
 179 #define BOOTENV_RUN_SCSI_INIT "run scsi_init; "
 180 #define BOOTENV_SET_SCSI_NEED_INIT "setenv scsi_need_init; "
 181 #define BOOTENV_SHARED_SCSI \
 182         "scsi_init=" \
 183                 "if ${scsi_need_init}; then " \
 184                         "setenv scsi_need_init false; " \
 185                         "scsi scan; " \
 186                 "fi\0" \
 187         \
 188         "scsi_boot=" \
 189                 BOOTENV_RUN_SCSI_INIT \
 190                 BOOTENV_SHARED_BLKDEV_BODY(scsi)
 191 #define BOOTENV_DEV_SCSI        BOOTENV_DEV_BLKDEV
 192 #define BOOTENV_DEV_NAME_SCSI   BOOTENV_DEV_NAME_BLKDEV
 193 #else
 194 #define BOOTENV_RUN_SCSI_INIT
 195 #define BOOTENV_SET_SCSI_NEED_INIT
 196 #define BOOTENV_SHARED_SCSI
 197 #define BOOTENV_DEV_SCSI \
 198         BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI
 199 #define BOOTENV_DEV_NAME_SCSI \
 200         BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI
 201 #endif
 202
 203 #ifdef CONFIG_IDE
 204 #define BOOTENV_SHARED_IDE      BOOTENV_SHARED_BLKDEV(ide)
 205 #define BOOTENV_DEV_IDE         BOOTENV_DEV_BLKDEV
 206 #define BOOTENV_DEV_NAME_IDE    BOOTENV_DEV_NAME_BLKDEV
 207 #else
 208 #define BOOTENV_SHARED_IDE
 209 #define BOOTENV_DEV_IDE \
 210         BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_IDE
 211 #define BOOTENV_DEV_NAME_IDE \
 212         BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_IDE
 213 #endif
 214
 215 #if defined(CONFIG_DM_PCI)
 216 #define BOOTENV_RUN_NET_PCI_ENUM "run boot_net_pci_enum; "
 217 #define BOOTENV_SHARED_PCI \
 218         "boot_net_pci_enum=pci enum\0"
 219 #else
 220 #define BOOTENV_RUN_NET_PCI_ENUM
 221 #define BOOTENV_SHARED_PCI
 222 #endif
 223
 224 #ifdef CONFIG_CMD_USB
 225 #define BOOTENV_RUN_NET_USB_START "run boot_net_usb_start; "
 226 #define BOOTENV_SHARED_USB \
 227         "boot_net_usb_start=usb start\0" \
 228         "usb_boot=" \
 229                 "usb start; " \
 230                 BOOTENV_SHARED_BLKDEV_BODY(usb)
 231 #define BOOTENV_DEV_USB         BOOTENV_DEV_BLKDEV
 232 #define BOOTENV_DEV_NAME_USB    BOOTENV_DEV_NAME_BLKDEV
 233 #else
 234 #define BOOTENV_RUN_NET_USB_START
 235 #define BOOTENV_SHARED_USB
 236 #define BOOTENV_DEV_USB \
 237         BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
 238 #define BOOTENV_DEV_NAME_USB \
 239         BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
 240 #endif
 241
 242 #if defined(CONFIG_CMD_DHCP)
 243 #if defined(CONFIG_EFI_LOADER)
 244 #if defined(CONFIG_ARM64)
 245 #define BOOTENV_EFI_PXE_ARCH "0xb"
 246 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00011:UNDI:003000"
 247 #elif defined(CONFIG_ARM)
 248 #define BOOTENV_EFI_PXE_ARCH "0xa"
 249 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00010:UNDI:003000"
 250 #elif defined(CONFIG_X86)
 251 /* Always assume we're running 64bit */
 252 #define BOOTENV_EFI_PXE_ARCH "0x7"
 253 #define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00007:UNDI:003000"
 254 #else
 255 #error Please specify an EFI client identifier
 256 #endif
 257
 258 /*
 259  * Ask the dhcp server for an EFI binary. If we get one, check for a
 260  * device tree in the same folder. Then boot everything. If the file was
 261  * not an EFI binary, we just return from the bootefi command and continue.
 262  */
 263 #define BOOTENV_EFI_RUN_DHCP \
 264         "setenv efi_fdtfile ${fdtfile}; "                                 \
 265         BOOTENV_EFI_SET_FDTFILE_FALLBACK                                  \
 266         "setenv efi_old_vci ${bootp_vci};"                                \
 267         "setenv efi_old_arch ${bootp_arch};"                              \
 268         "setenv bootp_vci " BOOTENV_EFI_PXE_VCI ";"                       \
 269         "setenv bootp_arch " BOOTENV_EFI_PXE_ARCH ";"                     \
 270         "if dhcp ${kernel_addr_r}; then "                                 \
 271                 "tftpboot ${fdt_addr_r} dtb/${efi_fdtfile};"              \
 272                 "if fdt addr ${fdt_addr_r}; then "                        \
 273                         "bootefi ${kernel_addr_r} ${fdt_addr_r}; "        \
 274                 "else "                                                   \
 275                         "bootefi ${kernel_addr_r} ${fdtcontroladdr};"     \
 276                 "fi;"                                                     \
 277         "fi;"                                                             \
 278         "setenv bootp_vci ${efi_old_vci};"                                \
 279         "setenv bootp_arch ${efi_old_arch};"                              \
 280         "setenv efi_fdtfile;"                                             \
 281         "setenv efi_old_arch;"                                            \
 282         "setenv efi_old_vci;"
 283 #else
 284 #define BOOTENV_EFI_RUN_DHCP
 285 #endif
 286 #define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \
 287         "bootcmd_dhcp=" \
 288                 BOOTENV_RUN_NET_USB_START \
 289                 BOOTENV_RUN_NET_PCI_ENUM \
 290                 "if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \
 291                         "source ${scriptaddr}; " \
 292                 "fi;" \
 293                 BOOTENV_EFI_RUN_DHCP \
 294                 "\0"
 295 #define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \
 296         "dhcp "
 297 #else
 298 #define BOOTENV_DEV_DHCP \
 299         BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
 300 #define BOOTENV_DEV_NAME_DHCP \
 301         BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
 302 #endif
 303
 304 #if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE)
 305 #define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \
 306         "bootcmd_pxe=" \
 307                 BOOTENV_RUN_NET_USB_START \
 308                 BOOTENV_RUN_NET_PCI_ENUM \
 309                 "dhcp; " \
 310                 "if pxe get; then " \
 311                         "pxe boot; " \
 312                 "fi\0"
 313 #define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \
 314         "pxe "
 315 #else
 316 #define BOOTENV_DEV_PXE \
 317         BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
 318 #define BOOTENV_DEV_NAME_PXE \
 319         BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
 320 #endif
 321
 322 #define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \
 323         BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance)
 324 #define BOOTENV_BOOT_TARGETS \
 325         "boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0"
 326
 327 #define BOOTENV_DEV(devtypeu, devtypel, instance) \
 328         BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance)
 329 #define BOOTENV \
 330         BOOTENV_SHARED_HOST \
 331         BOOTENV_SHARED_MMC \
 332         BOOTENV_SHARED_PCI \
 333         BOOTENV_SHARED_USB \
 334         BOOTENV_SHARED_SATA \
 335         BOOTENV_SHARED_SCSI \
 336         BOOTENV_SHARED_IDE \
 337         BOOTENV_SHARED_UBIFS \
 338         BOOTENV_SHARED_EFI \
 339         "boot_prefixes=/ /boot/\0" \
 340         "boot_scripts=boot.scr.uimg boot.scr\0" \
 341         "boot_script_dhcp=boot.scr.uimg\0" \
 342         BOOTENV_BOOT_TARGETS \
 343         \
 344         "boot_extlinux="                                                  \
 345                 "sysboot ${devtype} ${devnum}:${distro_bootpart} any "    \
 346                         "${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \
 347         \
 348         "scan_dev_for_extlinux="                                          \
 349                 "if test -e ${devtype} "                                  \
 350                                 "${devnum}:${distro_bootpart} "           \
 351                                 "${prefix}extlinux/extlinux.conf; then "  \
 352                         "echo Found ${prefix}extlinux/extlinux.conf; "    \
 353                         "run boot_extlinux; "                             \
 354                         "echo SCRIPT FAILED: continuing...; "             \
 355                 "fi\0"                                                    \
 356         \
 357         "boot_a_script="                                                  \
 358                 "load ${devtype} ${devnum}:${distro_bootpart} "           \
 359                         "${scriptaddr} ${prefix}${script}; "              \
 360                 "source ${scriptaddr}\0"                                  \
 361         \
 362         "scan_dev_for_scripts="                                           \
 363                 "for script in ${boot_scripts}; do "                      \
 364                         "if test -e ${devtype} "                          \
 365                                         "${devnum}:${distro_bootpart} "   \
 366                                         "${prefix}${script}; then "       \
 367                                 "echo Found U-Boot script "               \
 368                                         "${prefix}${script}; "            \
 369                                 "run boot_a_script; "                     \
 370                                 "echo SCRIPT FAILED: continuing...; "     \
 371                         "fi; "                                            \
 372                 "done\0"                                                  \
 373         \
 374         "scan_dev_for_boot="                                              \
 375                 "echo Scanning ${devtype} "                               \
 376                                 "${devnum}:${distro_bootpart}...; "       \
 377                 "for prefix in ${boot_prefixes}; do "                     \
 378                         "run scan_dev_for_extlinux; "                     \
 379                         "run scan_dev_for_scripts; "                      \
 380                 "done;"                                                   \
 381                 SCAN_DEV_FOR_EFI                                          \
 382                 "\0"                                                      \
 383         \
 384         "scan_dev_for_boot_part="                                         \
 385                 "part list ${devtype} ${devnum} -bootable devplist; "     \
 386                 "env exists devplist || setenv devplist 1; "              \
 387                 "for distro_bootpart in ${devplist}; do "                 \
 388                         "if fstype ${devtype} "                           \
 389                                         "${devnum}:${distro_bootpart} "   \
 390                                         "bootfstype; then "               \
 391                                 "run scan_dev_for_boot; "                 \
 392                         "fi; "                                            \
 393                 "done\0"                                                  \
 394         \
 395         BOOT_TARGET_DEVICES(BOOTENV_DEV)                                  \
 396         \
 397         "distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT                      \
 398                 "for target in ${boot_targets}; do "                      \
 399                         "run bootcmd_${target}; "                         \
 400                 "done\0"
 401
 402 #ifndef CONFIG_BOOTCOMMAND
 403 #define CONFIG_BOOTCOMMAND "run distro_bootcmd"
 404 #endif
 405
 406 #endif  /* _CONFIG_CMD_DISTRO_BOOTCMD_H */