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 #if defined(CONFIG_CMD_PCI_ENUM) || defined(CONFIG_DM_PCI)
 143 #define BOOTENV_RUN_NET_PCI_ENUM "run boot_net_pci_enum; "
 144 #define BOOTENV_SHARED_PCI \
 145         "boot_net_pci_enum=pci enum\0"
 146 #else
 147 #define BOOTENV_RUN_NET_PCI_ENUM
 148 #define BOOTENV_SHARED_PCI
 149 #endif
 150
 151 #ifdef CONFIG_CMD_USB
 152 #define BOOTENV_RUN_NET_USB_START "run boot_net_usb_start; "
 153 #define BOOTENV_SHARED_USB \
 154         "boot_net_usb_start=usb start\0" \
 155         "usb_boot=" \
 156                 "usb start; " \
 157                 BOOTENV_SHARED_BLKDEV_BODY(usb)
 158 #define BOOTENV_DEV_USB         BOOTENV_DEV_BLKDEV
 159 #define BOOTENV_DEV_NAME_USB    BOOTENV_DEV_NAME_BLKDEV
 160 #else
 161 #define BOOTENV_RUN_NET_USB_START
 162 #define BOOTENV_SHARED_USB
 163 #define BOOTENV_DEV_USB \
 164         BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
 165 #define BOOTENV_DEV_NAME_USB \
 166         BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
 167 #endif
 168
 169 #if defined(CONFIG_CMD_DHCP)
 170 #define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \
 171         "bootcmd_dhcp=" \
 172                 BOOTENV_RUN_NET_USB_START \
 173                 BOOTENV_RUN_NET_PCI_ENUM \
 174                 "if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \
 175                         "source ${scriptaddr}; " \
 176                 "fi\0"
 177 #define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \
 178         "dhcp "
 179 #else
 180 #define BOOTENV_DEV_DHCP \
 181         BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
 182 #define BOOTENV_DEV_NAME_DHCP \
 183         BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
 184 #endif
 185
 186 #if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE)
 187 #define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \
 188         "bootcmd_pxe=" \
 189                 BOOTENV_RUN_NET_USB_START \
 190                 BOOTENV_RUN_NET_PCI_ENUM \
 191                 "dhcp; " \
 192                 "if pxe get; then " \
 193                         "pxe boot; " \
 194                 "fi\0"
 195 #define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \
 196         "pxe "
 197 #else
 198 #define BOOTENV_DEV_PXE \
 199         BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
 200 #define BOOTENV_DEV_NAME_PXE \
 201         BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
 202 #endif
 203
 204 #define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \
 205         BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance)
 206 #define BOOTENV_BOOT_TARGETS \
 207         "boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0"
 208
 209 #define BOOTENV_DEV(devtypeu, devtypel, instance) \
 210         BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance)
 211 #define BOOTENV \
 212         BOOTENV_SHARED_HOST \
 213         BOOTENV_SHARED_MMC \
 214         BOOTENV_SHARED_PCI \
 215         BOOTENV_SHARED_USB \
 216         BOOTENV_SHARED_SATA \
 217         BOOTENV_SHARED_SCSI \
 218         BOOTENV_SHARED_IDE \
 219         BOOTENV_SHARED_UBIFS \
 220         "boot_prefixes=/ /boot/\0" \
 221         "boot_scripts=boot.scr.uimg boot.scr\0" \
 222         "boot_script_dhcp=boot.scr.uimg\0" \
 223         BOOTENV_BOOT_TARGETS \
 224         \
 225         "boot_extlinux="                                                  \
 226                 "sysboot ${devtype} ${devnum}:${distro_bootpart} any "    \
 227                         "${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \
 228         \
 229         "scan_dev_for_extlinux="                                          \
 230                 "if test -e ${devtype} "                                  \
 231                                 "${devnum}:${distro_bootpart} "           \
 232                                 "${prefix}extlinux/extlinux.conf; then "  \
 233                         "echo Found ${prefix}extlinux/extlinux.conf; "    \
 234                         "run boot_extlinux; "                             \
 235                         "echo SCRIPT FAILED: continuing...; "             \
 236                 "fi\0"                                                    \
 237         \
 238         "boot_a_script="                                                  \
 239                 "load ${devtype} ${devnum}:${distro_bootpart} "           \
 240                         "${scriptaddr} ${prefix}${script}; "              \
 241                 "source ${scriptaddr}\0"                                  \
 242         \
 243         "scan_dev_for_scripts="                                           \
 244                 "for script in ${boot_scripts}; do "                      \
 245                         "if test -e ${devtype} "                          \
 246                                         "${devnum}:${distro_bootpart} "   \
 247                                         "${prefix}${script}; then "       \
 248                                 "echo Found U-Boot script "               \
 249                                         "${prefix}${script}; "            \
 250                                 "run boot_a_script; "                     \
 251                                 "echo SCRIPT FAILED: continuing...; "     \
 252                         "fi; "                                            \
 253                 "done\0"                                                  \
 254         \
 255         "scan_dev_for_boot="                                              \
 256                 "echo Scanning ${devtype} "                               \
 257                                 "${devnum}:${distro_bootpart}...; "       \
 258                 "for prefix in ${boot_prefixes}; do "                     \
 259                         "run scan_dev_for_extlinux; "                     \
 260                         "run scan_dev_for_scripts; "                      \
 261                 "done\0"                                                  \
 262         \
 263         "scan_dev_for_boot_part="                                         \
 264                 "part list ${devtype} ${devnum} -bootable devplist; "     \
 265                 "env exists devplist || setenv devplist 1; "              \
 266                 "for distro_bootpart in ${devplist}; do "                 \
 267                         "if fstype ${devtype} "                           \
 268                                         "${devnum}:${distro_bootpart} "   \
 269                                         "bootfstype; then "               \
 270                                 "run scan_dev_for_boot; "                 \
 271                         "fi; "                                            \
 272                 "done\0"                                                  \
 273         \
 274         BOOT_TARGET_DEVICES(BOOTENV_DEV)                                  \
 275         \
 276         "distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT                      \
 277                 "for target in ${boot_targets}; do "                      \
 278                         "run bootcmd_${target}; "                         \
 279                 "done\0"
 280
 281 #ifndef CONFIG_BOOTCOMMAND
 282 #define CONFIG_BOOTCOMMAND "run distro_bootcmd"
 283 #endif
 284
 285 #endif  /* _CONFIG_CMD_DISTRO_BOOTCMD_H */