LXR uboot/include/config_distro

   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_CMD_MMC
  52#define BOOTENV_SHARED_MMC      BOOTENV_SHARED_BLKDEV(mmc)
  53#define BOOTENV_DEV_MMC         BOOTENV_DEV_BLKDEV
  54#define BOOTENV_DEV_NAME_MMC    BOOTENV_DEV_NAME_BLKDEV
  55#else
  56#define BOOTENV_SHARED_MMC
  57#define BOOTENV_DEV_MMC \
  58        BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC
  59#define BOOTENV_DEV_NAME_MMC \
  60        BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC
  61#endif
  62
  63#ifdef CONFIG_CMD_SATA
  64#define BOOTENV_SHARED_SATA     BOOTENV_SHARED_BLKDEV(sata)
  65#define BOOTENV_DEV_SATA        BOOTENV_DEV_BLKDEV
  66#define BOOTENV_DEV_NAME_SATA   BOOTENV_DEV_NAME_BLKDEV
  67#else
  68#define BOOTENV_SHARED_SATA
  69#define BOOTENV_DEV_SATA \
  70        BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA
  71#define BOOTENV_DEV_NAME_SATA \
  72        BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA
  73#endif
  74
  75#ifdef CONFIG_CMD_SCSI
  76#define BOOTENV_RUN_SCSI_INIT "run scsi_init; "
  77#define BOOTENV_SET_SCSI_NEED_INIT "setenv scsi_need_init; "
  78#define BOOTENV_SHARED_SCSI \
  79        "scsi_init=" \
  80                "if ${scsi_need_init}; then " \
  81                        "setenv scsi_need_init false; " \
  82                        "scsi scan; " \
  83                "fi\0" \
  84        \
  85        "scsi_boot=" \
  86                BOOTENV_RUN_SCSI_INIT \
  87                BOOTENV_SHARED_BLKDEV_BODY(scsi)
  88#define BOOTENV_DEV_SCSI        BOOTENV_DEV_BLKDEV
  89#define BOOTENV_DEV_NAME_SCSI   BOOTENV_DEV_NAME_BLKDEV
  90#else
  91#define BOOTENV_RUN_SCSI_INIT
  92#define BOOTENV_SET_SCSI_NEED_INIT
  93#define BOOTENV_SHARED_SCSI
  94#define BOOTENV_DEV_SCSI \
  95        BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_CMD_SCSI
  96#define BOOTENV_DEV_NAME_SCSI \
  97        BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_CMD_SCSI
  98#endif
  99
 100#ifdef CONFIG_CMD_IDE
 101#define BOOTENV_SHARED_IDE      BOOTENV_SHARED_BLKDEV(ide)
 102#define BOOTENV_DEV_IDE         BOOTENV_DEV_BLKDEV
 103#define BOOTENV_DEV_NAME_IDE    BOOTENV_DEV_NAME_BLKDEV
 104#else
 105#define BOOTENV_SHARED_IDE
 106#define BOOTENV_DEV_IDE \
 107        BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE
 108#define BOOTENV_DEV_NAME_IDE \
 109        BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE
 110#endif
 111
 112#ifdef CONFIG_CMD_USB
 113#define BOOTENV_RUN_USB_INIT "usb start; "
 114#define BOOTENV_SHARED_USB \
 115        "usb_boot=" \
 116                BOOTENV_RUN_USB_INIT \
 117                BOOTENV_SHARED_BLKDEV_BODY(usb)
 118#define BOOTENV_DEV_USB         BOOTENV_DEV_BLKDEV
 119#define BOOTENV_DEV_NAME_USB    BOOTENV_DEV_NAME_BLKDEV
 120#else
 121#define BOOTENV_RUN_USB_INIT
 122#define BOOTENV_SHARED_USB
 123#define BOOTENV_DEV_USB \
 124        BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
 125#define BOOTENV_DEV_NAME_USB \
 126        BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
 127#endif
 128
 129#if defined(CONFIG_CMD_DHCP)
 130#define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \
 131        "bootcmd_dhcp=" \
 132                BOOTENV_RUN_USB_INIT \
 133                "if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \
 134                        "source ${scriptaddr}; " \
 135                "fi\0"
 136#define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \
 137        "dhcp "
 138#else
 139#define BOOTENV_DEV_DHCP \
 140        BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
 141#define BOOTENV_DEV_NAME_DHCP \
 142        BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
 143#endif
 144
 145#if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE)
 146#define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \
 147        "bootcmd_pxe=" \
 148                BOOTENV_RUN_USB_INIT \
 149                "dhcp; " \
 150                "if pxe get; then " \
 151                        "pxe boot; " \
 152                "fi\0"
 153#define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \
 154        "pxe "
 155#else
 156#define BOOTENV_DEV_PXE \
 157        BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
 158#define BOOTENV_DEV_NAME_PXE \
 159        BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
 160#endif
 161
 162#define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \
 163        BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance)
 164#define BOOTENV_BOOT_TARGETS \
 165        "boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0"
 166
 167#define BOOTENV_DEV(devtypeu, devtypel, instance) \
 168        BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance)
 169#define BOOTENV \
 170        BOOTENV_SHARED_MMC \
 171        BOOTENV_SHARED_USB \
 172        BOOTENV_SHARED_SATA \
 173        BOOTENV_SHARED_SCSI \
 174        BOOTENV_SHARED_IDE \
 175        "boot_prefixes=/ /boot/\0" \
 176        "boot_scripts=boot.scr.uimg boot.scr\0" \
 177        "boot_script_dhcp=boot.scr.uimg\0" \
 178        BOOTENV_BOOT_TARGETS \
 179        \
 180        "boot_extlinux="                                                  \
 181                "sysboot ${devtype} ${devnum}:${bootpart} any "           \
 182                        "${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \
 183        \
 184        "scan_dev_for_extlinux="                                          \
 185                "if test -e ${devtype} ${devnum}:${bootpart} "            \
 186                                "${prefix}extlinux/extlinux.conf; then "  \
 187                        "echo Found ${prefix}extlinux/extlinux.conf; "    \
 188                        "run boot_extlinux; "                             \
 189                        "echo SCRIPT FAILED: continuing...; "             \
 190                "fi\0"                                                    \
 191        \
 192        "boot_a_script="                                                  \
 193                "load ${devtype} ${devnum}:${bootpart} "                  \
 194                        "${scriptaddr} ${prefix}${script}; "              \
 195                "source ${scriptaddr}\0"                                  \
 196        \
 197        "scan_dev_for_scripts="                                           \
 198                "for script in ${boot_scripts}; do "                      \
 199                        "if test -e ${devtype} ${devnum}:${bootpart} "    \
 200                                        "${prefix}${script}; then "       \
 201                                "echo Found U-Boot script "               \
 202                                        "${prefix}${script}; "            \
 203                                "run boot_a_script; "                     \
 204                                "echo SCRIPT FAILED: continuing...; "     \
 205                        "fi; "                                            \
 206                "done\0"                                                  \
 207        \
 208        "scan_dev_for_boot="                                              \
 209                "echo Scanning ${devtype} ${devnum}:${bootpart}...; "     \
 210                "for prefix in ${boot_prefixes}; do "                     \
 211                        "run scan_dev_for_extlinux; "                     \
 212                        "run scan_dev_for_scripts; "                      \
 213                "done\0"                                                  \
 214        \
 215        "scan_dev_for_boot_part="                                         \
 216                "part list ${devtype} ${devnum} -bootable devplist; "     \
 217                "env exists devplist || setenv devplist 1; "              \
 218                "for bootpart in ${devplist}; do "                        \
 219                        "if fstype ${devtype} ${devnum}:${bootpart} "     \
 220                                        "bootfstype; then "               \
 221                                "run scan_dev_for_boot; "                 \
 222                        "fi; "                                            \
 223                "done\0"                                                  \
 224        \
 225        BOOT_TARGET_DEVICES(BOOTENV_DEV)                                  \
 226        \
 227        "distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT                      \
 228                "for target in ${boot_targets}; do "                      \
 229                        "run bootcmd_${target}; "                         \
 230                "done\0"
 231
 232#ifndef CONFIG_BOOTCOMMAND
 233#define CONFIG_BOOTCOMMAND "run distro_bootcmd"
 234#endif
 235
 236#endif  /* _CONFIG_CMD_DISTRO_BOOTCMD_H */
 237