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 /* 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_CMD_SATA
  94 #define BOOTENV_SHARED_SATA     BOOTENV_SHARED_BLKDEV(sata)
  95 #define BOOTENV_DEV_SATA        BOOTENV_DEV_BLKDEV
  96 #define BOOTENV_DEV_NAME_SATA   BOOTENV_DEV_NAME_BLKDEV
  97 #else
  98 #define BOOTENV_SHARED_SATA
  99 #define BOOTENV_DEV_SATA \
 100         BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA
 101 #define BOOTENV_DEV_NAME_SATA \
 102         BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA
 103 #endif
 104
 105 #ifdef CONFIG_CMD_SCSI
 106 #define BOOTENV_RUN_SCSI_INIT "run scsi_init; "
 107 #define BOOTENV_SET_SCSI_NEED_INIT "setenv scsi_need_init; "
 108 #define BOOTENV_SHARED_SCSI \
 109         "scsi_init=" \
 110                 "if ${scsi_need_init}; then " \
 111                         "setenv scsi_need_init false; " \
 112                         "scsi scan; " \
 113                 "fi\0" \
 114         \
 115         "scsi_boot=" \
 116                 BOOTENV_RUN_SCSI_INIT \
 117                 BOOTENV_SHARED_BLKDEV_BODY(scsi)
 118 #define BOOTENV_DEV_SCSI        BOOTENV_DEV_BLKDEV
 119 #define BOOTENV_DEV_NAME_SCSI   BOOTENV_DEV_NAME_BLKDEV
 120 #else
 121 #define BOOTENV_RUN_SCSI_INIT
 122 #define BOOTENV_SET_SCSI_NEED_INIT
 123 #define BOOTENV_SHARED_SCSI
 124 #define BOOTENV_DEV_SCSI \
 125         BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_CMD_SCSI
 126 #define BOOTENV_DEV_NAME_SCSI \
 127         BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_CMD_SCSI
 128 #endif
 129
 130 #ifdef CONFIG_CMD_IDE
 131 #define BOOTENV_SHARED_IDE      BOOTENV_SHARED_BLKDEV(ide)
 132 #define BOOTENV_DEV_IDE         BOOTENV_DEV_BLKDEV
 133 #define BOOTENV_DEV_NAME_IDE    BOOTENV_DEV_NAME_BLKDEV
 134 #else
 135 #define BOOTENV_SHARED_IDE
 136 #define BOOTENV_DEV_IDE \
 137         BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE
 138 #define BOOTENV_DEV_NAME_IDE \
 139         BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE
 140 #endif
 141
 142 #ifdef CONFIG_CMD_USB
 143 #define BOOTENV_RUN_USB_INIT "usb start; "
 144 #define BOOTENV_SHARED_USB \
 145         "usb_boot=" \
 146                 BOOTENV_RUN_USB_INIT \
 147                 BOOTENV_SHARED_BLKDEV_BODY(usb)
 148 #define BOOTENV_DEV_USB         BOOTENV_DEV_BLKDEV
 149 #define BOOTENV_DEV_NAME_USB    BOOTENV_DEV_NAME_BLKDEV
 150 #else
 151 #define BOOTENV_RUN_USB_INIT
 152 #define BOOTENV_SHARED_USB
 153 #define BOOTENV_DEV_USB \
 154         BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
 155 #define BOOTENV_DEV_NAME_USB \
 156         BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
 157 #endif
 158
 159 #if defined(CONFIG_CMD_DHCP)
 160 #define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \
 161         "bootcmd_dhcp=" \
 162                 BOOTENV_RUN_USB_INIT \
 163                 "if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \
 164                         "source ${scriptaddr}; " \
 165                 "fi\0"
 166 #define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \
 167         "dhcp "
 168 #else
 169 #define BOOTENV_DEV_DHCP \
 170         BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
 171 #define BOOTENV_DEV_NAME_DHCP \
 172         BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
 173 #endif
 174
 175 #if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE)
 176 #define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \
 177         "bootcmd_pxe=" \
 178                 BOOTENV_RUN_USB_INIT \
 179                 "dhcp; " \
 180                 "if pxe get; then " \
 181                         "pxe boot; " \
 182                 "fi\0"
 183 #define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \
 184         "pxe "
 185 #else
 186 #define BOOTENV_DEV_PXE \
 187         BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
 188 #define BOOTENV_DEV_NAME_PXE \
 189         BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
 190 #endif
 191
 192 #define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \
 193         BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance)
 194 #define BOOTENV_BOOT_TARGETS \
 195         "boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0"
 196
 197 #define BOOTENV_DEV(devtypeu, devtypel, instance) \
 198         BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance)
 199 #define BOOTENV \
 200         BOOTENV_SHARED_HOST \
 201         BOOTENV_SHARED_MMC \
 202         BOOTENV_SHARED_USB \
 203         BOOTENV_SHARED_SATA \
 204         BOOTENV_SHARED_SCSI \
 205         BOOTENV_SHARED_IDE \
 206         BOOTENV_SHARED_UBIFS \
 207         "boot_prefixes=/ /boot/\0" \
 208         "boot_scripts=boot.scr.uimg boot.scr\0" \
 209         "boot_script_dhcp=boot.scr.uimg\0" \
 210         BOOTENV_BOOT_TARGETS \
 211         \
 212         "boot_extlinux="                                                  \
 213                 "sysboot ${devtype} ${devnum}:${distro_bootpart} any "    \
 214                         "${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \
 215         \
 216         "scan_dev_for_extlinux="                                          \
 217                 "if test -e ${devtype} "                                  \
 218                                 "${devnum}:${distro_bootpart} "           \
 219                                 "${prefix}extlinux/extlinux.conf; then "  \
 220                         "echo Found ${prefix}extlinux/extlinux.conf; "    \
 221                         "run boot_extlinux; "                             \
 222                         "echo SCRIPT FAILED: continuing...; "             \
 223                 "fi\0"                                                    \
 224         \
 225         "boot_a_script="                                                  \
 226                 "load ${devtype} ${devnum}:${distro_bootpart} "           \
 227                         "${scriptaddr} ${prefix}${script}; "              \
 228                 "source ${scriptaddr}\0"                                  \
 229         \
 230         "scan_dev_for_scripts="                                           \
 231                 "for script in ${boot_scripts}; do "                      \
 232                         "if test -e ${devtype} "                          \
 233                                         "${devnum}:${distro_bootpart} "   \
 234                                         "${prefix}${script}; then "       \
 235                                 "echo Found U-Boot script "               \
 236                                         "${prefix}${script}; "            \
 237                                 "run boot_a_script; "                     \
 238                                 "echo SCRIPT FAILED: continuing...; "     \
 239                         "fi; "                                            \
 240                 "done\0"                                                  \
 241         \
 242         "scan_dev_for_boot="                                              \
 243                 "echo Scanning ${devtype} "                               \
 244                                 "${devnum}:${distro_bootpart}...; "       \
 245                 "for prefix in ${boot_prefixes}; do "                     \
 246                         "run scan_dev_for_extlinux; "                     \
 247                         "run scan_dev_for_scripts; "                      \
 248                 "done\0"                                                  \
 249         \
 250         "scan_dev_for_boot_part="                                         \
 251                 "part list ${devtype} ${devnum} -bootable devplist; "     \
 252                 "env exists devplist || setenv devplist 1; "              \
 253                 "for distro_bootpart in ${devplist}; do "                 \
 254                         "if fstype ${devtype} "                           \
 255                                         "${devnum}:${distro_bootpart} "   \
 256                                         "bootfstype; then "               \
 257                                 "run scan_dev_for_boot; "                 \
 258                         "fi; "                                            \
 259                 "done\0"                                                  \
 260         \
 261         BOOT_TARGET_DEVICES(BOOTENV_DEV)                                  \
 262         \
 263         "distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT                      \
 264                 "for target in ${boot_targets}; do "                      \
 265                         "run bootcmd_${target}; "                         \
 266                 "done\0"
 267
 268 #ifndef CONFIG_BOOTCOMMAND
 269 #define CONFIG_BOOTCOMMAND "run distro_bootcmd"
 270 #endif
 271
 272 #endif  /* _CONFIG_CMD_DISTRO_BOOTCMD_H */