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_EFI_LOADER 94 #if defined(CONFIG_ARM64) 95 #define BOOTEFI_NAME "bootaa64.efi" 96 #elif defined(CONFIG_ARM) 97 #define BOOTEFI_NAME "bootarm.efi" 98 #endif 99 #endif 100 101 #ifdef BOOTEFI_NAME 102 #define BOOTENV_SHARED_EFI \ 103 "boot_efi_binary=" \ 104 "load ${devtype} ${devnum}:${distro_bootpart} " \ 105 "${kernel_addr_r} efi/boot/"BOOTEFI_NAME"; " \ 106 "if fdt addr ${fdt_addr_r}; then " \ 107 "bootefi ${kernel_addr_r} ${fdt_addr_r};" \ 108 "else" \ 109 "bootefi ${kernel_addr_r} ${fdtcontroladdr};" \ 110 "fi\0" \ 111 \ 112 "load_efi_dtb=" \ 113 "load ${devtype} ${devnum}:${distro_bootpart} " \ 114 "${fdt_addr_r} ${prefix}${fdtfile}\0" \ 115 \ 116 "efi_dtb_prefixes=/ /dtb/ /dtb/current/\0" \ 117 "scan_dev_for_efi=" \ 118 "for prefix in ${efi_dtb_prefixes}; do " \ 119 "if test -e ${devtype} " \ 120 "${devnum}:${distro_bootpart} " \ 121 "${prefix}${fdtfile}; then " \ 122 "run load_efi_dtb; " \ 123 "fi;" \ 124 "done;" \ 125 "if test -e ${devtype} ${devnum}:${distro_bootpart} " \ 126 "efi/boot/"BOOTEFI_NAME"; then " \ 127 "echo Found EFI removable media binary " \ 128 "efi/boot/"BOOTEFI_NAME"; " \ 129 "run boot_efi_binary; " \ 130 "echo EFI LOAD FAILED: continuing...; " \ 131 "fi; \0" 132 #define SCAN_DEV_FOR_EFI "run scan_dev_for_efi;" 133 #else 134 #define BOOTENV_SHARED_EFI 135 #define SCAN_DEV_FOR_EFI 136 #endif 137 138 #ifdef CONFIG_CMD_SATA 139 #define BOOTENV_SHARED_SATA BOOTENV_SHARED_BLKDEV(sata) 140 #define BOOTENV_DEV_SATA BOOTENV_DEV_BLKDEV 141 #define BOOTENV_DEV_NAME_SATA BOOTENV_DEV_NAME_BLKDEV 142 #else 143 #define BOOTENV_SHARED_SATA 144 #define BOOTENV_DEV_SATA \ 145 BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA 146 #define BOOTENV_DEV_NAME_SATA \ 147 BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA 148 #endif 149 150 #ifdef CONFIG_CMD_SCSI 151 #define BOOTENV_RUN_SCSI_INIT "run scsi_init; " 152 #define BOOTENV_SET_SCSI_NEED_INIT "setenv scsi_need_init; " 153 #define BOOTENV_SHARED_SCSI \ 154 "scsi_init=" \ 155 "if ${scsi_need_init}; then " \ 156 "setenv scsi_need_init false; " \ 157 "scsi scan; " \ 158 "fi\0" \ 159 \ 160 "scsi_boot=" \ 161 BOOTENV_RUN_SCSI_INIT \ 162 BOOTENV_SHARED_BLKDEV_BODY(scsi) 163 #define BOOTENV_DEV_SCSI BOOTENV_DEV_BLKDEV 164 #define BOOTENV_DEV_NAME_SCSI BOOTENV_DEV_NAME_BLKDEV 165 #else 166 #define BOOTENV_RUN_SCSI_INIT 167 #define BOOTENV_SET_SCSI_NEED_INIT 168 #define BOOTENV_SHARED_SCSI 169 #define BOOTENV_DEV_SCSI \ 170 BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_CMD_SCSI 171 #define BOOTENV_DEV_NAME_SCSI \ 172 BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_CMD_SCSI 173 #endif 174 175 #ifdef CONFIG_CMD_IDE 176 #define BOOTENV_SHARED_IDE BOOTENV_SHARED_BLKDEV(ide) 177 #define BOOTENV_DEV_IDE BOOTENV_DEV_BLKDEV 178 #define BOOTENV_DEV_NAME_IDE BOOTENV_DEV_NAME_BLKDEV 179 #else 180 #define BOOTENV_SHARED_IDE 181 #define BOOTENV_DEV_IDE \ 182 BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE 183 #define BOOTENV_DEV_NAME_IDE \ 184 BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE 185 #endif 186 187 #if defined(CONFIG_CMD_PCI_ENUM) || defined(CONFIG_DM_PCI) 188 #define BOOTENV_RUN_NET_PCI_ENUM "run boot_net_pci_enum; " 189 #define BOOTENV_SHARED_PCI \ 190 "boot_net_pci_enum=pci enum\0" 191 #else 192 #define BOOTENV_RUN_NET_PCI_ENUM 193 #define BOOTENV_SHARED_PCI 194 #endif 195 196 #ifdef CONFIG_CMD_USB 197 #define BOOTENV_RUN_NET_USB_START "run boot_net_usb_start; " 198 #define BOOTENV_SHARED_USB \ 199 "boot_net_usb_start=usb start\0" \ 200 "usb_boot=" \ 201 "usb start; " \ 202 BOOTENV_SHARED_BLKDEV_BODY(usb) 203 #define BOOTENV_DEV_USB BOOTENV_DEV_BLKDEV 204 #define BOOTENV_DEV_NAME_USB BOOTENV_DEV_NAME_BLKDEV 205 #else 206 #define BOOTENV_RUN_NET_USB_START 207 #define BOOTENV_SHARED_USB 208 #define BOOTENV_DEV_USB \ 209 BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB 210 #define BOOTENV_DEV_NAME_USB \ 211 BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB 212 #endif 213 214 #if defined(CONFIG_CMD_DHCP) 215 #define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \ 216 "bootcmd_dhcp=" \ 217 BOOTENV_RUN_NET_USB_START \ 218 BOOTENV_RUN_NET_PCI_ENUM \ 219 "if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \ 220 "source ${scriptaddr}; " \ 221 "fi\0" 222 #define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \ 223 "dhcp " 224 #else 225 #define BOOTENV_DEV_DHCP \ 226 BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP 227 #define BOOTENV_DEV_NAME_DHCP \ 228 BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP 229 #endif 230 231 #if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE) 232 #define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \ 233 "bootcmd_pxe=" \ 234 BOOTENV_RUN_NET_USB_START \ 235 BOOTENV_RUN_NET_PCI_ENUM \ 236 "dhcp; " \ 237 "if pxe get; then " \ 238 "pxe boot; " \ 239 "fi\0" 240 #define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \ 241 "pxe " 242 #else 243 #define BOOTENV_DEV_PXE \ 244 BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE 245 #define BOOTENV_DEV_NAME_PXE \ 246 BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE 247 #endif 248 249 #define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \ 250 BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance) 251 #define BOOTENV_BOOT_TARGETS \ 252 "boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0" 253 254 #define BOOTENV_DEV(devtypeu, devtypel, instance) \ 255 BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance) 256 #define BOOTENV \ 257 BOOTENV_SHARED_HOST \ 258 BOOTENV_SHARED_MMC \ 259 BOOTENV_SHARED_PCI \ 260 BOOTENV_SHARED_USB \ 261 BOOTENV_SHARED_SATA \ 262 BOOTENV_SHARED_SCSI \ 263 BOOTENV_SHARED_IDE \ 264 BOOTENV_SHARED_UBIFS \ 265 BOOTENV_SHARED_EFI \ 266 "boot_prefixes=/ /boot/\0" \ 267 "boot_scripts=boot.scr.uimg boot.scr\0" \ 268 "boot_script_dhcp=boot.scr.uimg\0" \ 269 BOOTENV_BOOT_TARGETS \ 270 \ 271 "boot_extlinux=" \ 272 "sysboot ${devtype} ${devnum}:${distro_bootpart} any " \ 273 "${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \ 274 \ 275 "scan_dev_for_extlinux=" \ 276 "if test -e ${devtype} " \ 277 "${devnum}:${distro_bootpart} " \ 278 "${prefix}extlinux/extlinux.conf; then " \ 279 "echo Found ${prefix}extlinux/extlinux.conf; " \ 280 "run boot_extlinux; " \ 281 "echo SCRIPT FAILED: continuing...; " \ 282 "fi\0" \ 283 \ 284 "boot_a_script=" \ 285 "load ${devtype} ${devnum}:${distro_bootpart} " \ 286 "${scriptaddr} ${prefix}${script}; " \ 287 "source ${scriptaddr}\0" \ 288 \ 289 "scan_dev_for_scripts=" \ 290 "for script in ${boot_scripts}; do " \ 291 "if test -e ${devtype} " \ 292 "${devnum}:${distro_bootpart} " \ 293 "${prefix}${script}; then " \ 294 "echo Found U-Boot script " \ 295 "${prefix}${script}; " \ 296 "run boot_a_script; " \ 297 "echo SCRIPT FAILED: continuing...; " \ 298 "fi; " \ 299 "done\0" \ 300 \ 301 "scan_dev_for_boot=" \ 302 "echo Scanning ${devtype} " \ 303 "${devnum}:${distro_bootpart}...; " \ 304 "for prefix in ${boot_prefixes}; do " \ 305 "run scan_dev_for_extlinux; " \ 306 "run scan_dev_for_scripts; " \ 307 "done;" \ 308 SCAN_DEV_FOR_EFI \ 309 "\0" \ 310 \ 311 "scan_dev_for_boot_part=" \ 312 "part list ${devtype} ${devnum} -bootable devplist; " \ 313 "env exists devplist || setenv devplist 1; " \ 314 "for distro_bootpart in ${devplist}; do " \ 315 "if fstype ${devtype} " \ 316 "${devnum}:${distro_bootpart} " \ 317 "bootfstype; then " \ 318 "run scan_dev_for_boot; " \ 319 "fi; " \ 320 "done\0" \ 321 \ 322 BOOT_TARGET_DEVICES(BOOTENV_DEV) \ 323 \ 324 "distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT \ 325 "for target in ${boot_targets}; do " \ 326 "run bootcmd_${target}; " \ 327 "done\0" 328 329 #ifndef CONFIG_BOOTCOMMAND 330 #define CONFIG_BOOTCOMMAND "run distro_bootcmd" 331 #endif 332 333 #endif /* _CONFIG_CMD_DISTRO_BOOTCMD_H */ 334