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 */ 286