static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { int ret = 0; long state; cmd_tbl_t *c; boot_os_fn *boot_fn; c = find_cmd_tbl(argv[1], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub)); if (c) { state = (long)c->cmd; /* treat start special since it resets the state machine */ if (state == BOOTM_STATE_START) { argc--; argv++; return bootm_start(cmdtp, flag, argc, argv); } } else { /* Unrecognized command */ return CMD_RET_USAGE; } if (images.state < BOOTM_STATE_START || images.state >= state) { printf("Trying to execute a command out of order\n"); return CMD_RET_USAGE; } images.state |= state; boot_fn = boot_os[images.os.os]; switch (state) { ulong load_end; case BOOTM_STATE_START: /* should never occur */ break; case BOOTM_STATE_LOADOS: ret = bootm_load_os(images.os, &load_end, 0); if (ret) return ret; lmb_reserve(&images.lmb, images.os.load, (load_end - images.os.load)); break; #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH case BOOTM_STATE_RAMDISK: { ulong rd_len = images.rd_end - images.rd_start; char str[17]; ret = boot_ramdisk_high(&images.lmb, images.rd_start, rd_len, &images.initrd_start, &images.initrd_end); if (ret) return ret; sprintf(str, "%lx", images.initrd_start); setenv("initrd_start", str); sprintf(str, "%lx", images.initrd_end); setenv("initrd_end", str); } break; #endif #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB) case BOOTM_STATE_FDT: { boot_fdt_add_mem_rsv_regions(&images.lmb, images.ft_addr); ret = boot_relocate_fdt(&images.lmb, &images.ft_addr, &images.ft_len); break; } #endif case BOOTM_STATE_OS_CMDLINE: ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, &images); if (ret) printf("cmdline subcommand not supported\n"); break; case BOOTM_STATE_OS_BD_T: ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, &images); if (ret) printf("bdt subcommand not supported\n"); break; case BOOTM_STATE_OS_PREP: ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, &images); if (ret) printf("prep subcommand not supported\n"); break; case BOOTM_STATE_OS_GO: disable_interrupts(); #ifdef CONFIG_NETCONSOLE /* * Stop the ethernet stack if NetConsole could have * left it up */ eth_halt(); #endif arch_preboot_os(); boot_fn(BOOTM_STATE_OS_GO, argc, argv, &images); break; } return ret; }
/** * Execute selected states of the bootm command. * * Note the arguments to this state must be the first argument, Any 'bootm' * or sub-command arguments must have already been taken. * * Note that if states contains more than one flag it MUST contain * BOOTM_STATE_START, since this handles and consumes the command line args. * * Also note that aside from boot_os_fn functions and bootm_load_os no other * functions we store the return value of in 'ret' may use a negative return * value, without special handling. * * @param cmdtp Pointer to bootm command table entry * @param flag Command flags (CMD_FLAG_...) * @param argc Number of subcommand arguments (0 = no arguments) * @param argv Arguments * @param states Mask containing states to run (BOOTM_STATE_...) * @param images Image header information * @param boot_progress 1 to show boot progress, 0 to not do this * @return 0 if ok, something else on error. Some errors will cause this * function to perform a reboot! If states contains BOOTM_STATE_OS_GO * then the intent is to boot an OS, so this function will not return * unless the image type is standalone. */ int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int states, bootm_headers_t *images, int boot_progress) { boot_os_fn *boot_fn; ulong iflag = 0; int ret = 0, need_boot_fn; images->state |= states; /* * Work through the states and see how far we get. We stop on * any error. */ if (states & BOOTM_STATE_START) ret = bootm_start(cmdtp, flag, argc, argv); if (!ret && (states & BOOTM_STATE_FINDOS)) ret = bootm_find_os(cmdtp, flag, argc, argv); if (!ret && (states & BOOTM_STATE_FINDOTHER)) { ret = bootm_find_other(cmdtp, flag, argc, argv); argc = 0; /* consume the args */ } /* Load the OS */ if (!ret && (states & BOOTM_STATE_LOADOS)) { ulong load_end; iflag = bootm_disable_interrupts(); ret = bootm_load_os(images, &load_end, 0); if (ret == 0) lmb_reserve(&images->lmb, images->os.load, (load_end - images->os.load)); else if (ret && ret != BOOTM_ERR_OVERLAP) goto err; else if (ret == BOOTM_ERR_OVERLAP) ret = 0; #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) if (images->os.os == IH_OS_LINUX) fixup_silent_linux(); #endif } /* Relocate the ramdisk */ #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH if (!ret && (states & BOOTM_STATE_RAMDISK)) { ulong rd_len = images->rd_end - images->rd_start; ret = boot_ramdisk_high(&images->lmb, images->rd_start, rd_len, &images->initrd_start, &images->initrd_end); if (!ret) { setenv_hex("initrd_start", images->initrd_start); setenv_hex("initrd_end", images->initrd_end); } } #endif #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB) if (!ret && (states & BOOTM_STATE_FDT)) { boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr); ret = boot_relocate_fdt(&images->lmb, &images->ft_addr, &images->ft_len); } #endif /* From now on, we need the OS boot function */ if (ret) return ret; boot_fn = bootm_os_get_boot_func(images->os.os); need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE | BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO); if (boot_fn == NULL && need_boot_fn) { if (iflag) enable_interrupts(); printf("ERROR: booting os '%s' (%d) is not supported\n", genimg_get_os_name(images->os.os), images->os.os); bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS); return 1; } /* Call various other states that are not generally used */ if (!ret && (states & BOOTM_STATE_OS_CMDLINE)) ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images); if (!ret && (states & BOOTM_STATE_OS_BD_T)) ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images); if (!ret && (states & BOOTM_STATE_OS_PREP)) ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images); #ifdef CONFIG_TRACE /* Pretend to run the OS, then run a user command */ if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) { char *cmd_list = getenv("fakegocmd"); ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO, images, boot_fn); if (!ret && cmd_list) ret = run_command_list(cmd_list, -1, flag); } #endif /* Check for unsupported subcommand. */ if (ret) { puts("subcommand not supported\n"); return ret; } /* Now run the OS! We hope this doesn't return */ if (!ret && (states & BOOTM_STATE_OS_GO)) ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO, images, boot_fn); /* Deal with any fallout */ err: if (iflag) enable_interrupts(); if (ret == BOOTM_ERR_UNIMPLEMENTED) bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL); else if (ret == BOOTM_ERR_RESET) do_reset(cmdtp, flag, argc, argv); return ret; }
int do_bootm_subcommand (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { int ret = 0; int state; cmd_tbl_t *c; boot_os_fn *boot_fn; c = find_cmd_tbl(argv[1], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub)); if (c) { state = (int)c->cmd; /* treat start special since it resets the state machine */ if (state == BOOTM_STATE_START) { argc--; argv++; return bootm_start(cmdtp, flag, argc, argv); } } /* Unrecognized command */ else { cmd_usage(cmdtp); return 1; } if (images.state >= state) { printf ("Trying to execute a command out of order\n"); cmd_usage(cmdtp); return 1; } images.state |= state; boot_fn = boot_os[images.os.os]; switch (state) { ulong load_end; case BOOTM_STATE_START: /* should never occur */ break; case BOOTM_STATE_LOADOS: ret = bootm_load_os(images.os, &load_end, 0); if (ret) return ret; lmb_reserve(&images.lmb, images.os.load, (load_end - images.os.load)); break; #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_SPARC) case BOOTM_STATE_RAMDISK: { ulong rd_len = images.rd_end - images.rd_start; char str[17]; ret = boot_ramdisk_high(&images.lmb, images.rd_start, rd_len, &images.initrd_start, &images.initrd_end); if (ret) return ret; sprintf(str, "%lx", images.initrd_start); setenv("initrd_start", str); sprintf(str, "%lx", images.initrd_end); setenv("initrd_end", str); } break; #endif #ifdef CONFIG_OF_LIBFDT case BOOTM_STATE_FDT: { ulong bootmap_base = getenv_bootm_low(); ret = boot_relocate_fdt(&images.lmb, bootmap_base, &images.ft_addr, &images.ft_len); break; } #endif case BOOTM_STATE_OS_CMDLINE: ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, &images); if (ret) printf ("cmdline subcommand not supported\n"); break; case BOOTM_STATE_OS_BD_T: ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, &images); if (ret) printf ("bdt subcommand not supported\n"); break; case BOOTM_STATE_OS_PREP: ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, &images); if (ret) printf ("prep subcommand not supported\n"); break; case BOOTM_STATE_OS_GO: disable_interrupts(); boot_fn(BOOTM_STATE_OS_GO, argc, argv, &images); break; } return ret; }
/** * Execute selected states of the bootm command. * * Note the arguments to this state must be the first argument, Any 'bootm' * or sub-command arguments must have already been taken. * * Note that if states contains more than one flag it MUST contain * BOOTM_STATE_START, since this handles and consumes the command line args. * * Also note that aside from boot_os_fn functions and bootm_load_os no other * functions we store the return value of in 'ret' may use a negative return * value, without special handling. * * @param cmdtp Pointer to bootm command table entry * @param flag Command flags (CMD_FLAG_...) * @param argc Number of subcommand arguments (0 = no arguments) * @param argv Arguments * @param states Mask containing states to run (BOOTM_STATE_...) * @param images Image header information * @param boot_progress 1 to show boot progress, 0 to not do this * @return 0 if ok, something else on error. Some errors will cause this * function to perform a reboot! If states contains BOOTM_STATE_OS_GO * then the intent is to boot an OS, so this function will not return * unless the image type is standalone. */ static int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int states, bootm_headers_t *images, int boot_progress) { boot_os_fn *boot_fn; ulong iflag = 0; int ret = 0; images->state |= states; /* * Work through the states and see how far we get. We stop on * any error. */ if (states & BOOTM_STATE_START) ret = bootm_start(cmdtp, flag, argc, argv); if (!ret && (states & BOOTM_STATE_FINDOS)) ret = bootm_find_os(cmdtp, flag, argc, argv); if (!ret && (states & BOOTM_STATE_FINDOTHER)) { ret = bootm_find_other(cmdtp, flag, argc, argv); argc = 0; /* consume the args */ } /* * We have reached the point of no return: we are going to * overwrite all exception vector code, so we cannot easily * recover from any failures any more... */ iflag = disable_interrupts(); #ifdef CONFIG_NETCONSOLE /* Stop the ethernet stack if NetConsole could have left it up */ eth_halt(); #endif #if defined(CONFIG_CMD_USB) /* * turn off USB to prevent the host controller from writing to the * SDRAM while Linux is booting. This could happen (at least for OHCI * controller), because the HCCA (Host Controller Communication Area) * lies within the SDRAM and the host controller writes continously to * this area (as busmaster!). The HccaFrameNumber is for example * updated every 1 ms within the HCCA structure in SDRAM! For more * details see the OpenHCI specification. */ usb_stop(); #endif /* Load the OS */ if (!ret && (states & BOOTM_STATE_LOADOS)) { ulong load_end; ret = bootm_load_os(images, &load_end, 0); if (ret && ret != BOOTM_ERR_OVERLAP) goto err; if (ret == 0) lmb_reserve(&images->lmb, images->os.load, (load_end - images->os.load)); else if (ret == BOOTM_ERR_OVERLAP) ret = 0; } /* Relocate the ramdisk */ #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH if (!ret && (states & BOOTM_STATE_RAMDISK)) { ulong rd_len = images->rd_end - images->rd_start; ret = boot_ramdisk_high(&images->lmb, images->rd_start, rd_len, &images->initrd_start, &images->initrd_end); if (!ret) { setenv_hex("initrd_start", images->initrd_start); setenv_hex("initrd_end", images->initrd_end); } } #endif #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB) if (!ret && (states & BOOTM_STATE_FDT)) { boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr); ret = boot_relocate_fdt(&images->lmb, &images->ft_addr, &images->ft_len); } #endif /* From now on, we need the OS boot function */ if (ret) return ret; boot_fn = boot_os[images->os.os]; if (boot_fn == NULL) { if (iflag) enable_interrupts(); printf("ERROR: booting os '%s' (%d) is not supported\n", genimg_get_os_name(images->os.os), images->os.os); bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS); return 1; } /* Call various other states that are not generally used */ if (!ret && (states & BOOTM_STATE_OS_CMDLINE)) ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images); if (!ret && (states & BOOTM_STATE_OS_BD_T)) ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images); if (!ret && (states & BOOTM_STATE_OS_PREP)) ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images); #ifdef CONFIG_TRACE /* Pretend to run the OS, then run a user command */ if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) { char *cmd_list = getenv("fakegocmd"); ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO, images, boot_fn); if (!ret && cmd_list) ret = run_command_list(cmd_list, -1, flag); } #endif /* Now run the OS! We hope this doesn't return */ if (!ret && (states & BOOTM_STATE_OS_GO)) { ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO, images, boot_fn); if (ret) goto err; } return ret; /* Deal with any fallout */ err: if (iflag) enable_interrupts(); if (ret == BOOTM_ERR_UNIMPLEMENTED) bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL); else if (ret == BOOTM_ERR_RESET) do_reset(cmdtp, flag, argc, argv); else puts("subcommand not supported\n"); return ret; }