1 /* 2 * (C) Copyright 2000-2009 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <bootm.h> 10 #include <command.h> 11 #include <image.h> 12 #include <lmb.h> 13 #include <mapmem.h> 14 #include <linux/kernel.h> 15 #include <linux/sizes.h> 16 17 DECLARE_GLOBAL_DATA_PTR; 18 19 /* 20 * Image booting support 21 */ 22 static int booti_start(cmd_tbl_t *cmdtp, int flag, int argc, 23 char * const argv[], bootm_headers_t *images) 24 { 25 int ret; 26 ulong ld; 27 ulong relocated_addr; 28 ulong image_size; 29 30 ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START, 31 images, 1); 32 33 /* Setup Linux kernel Image entry point */ 34 if (!argc) { 35 ld = load_addr; 36 debug("* kernel: default image load address = 0x%08lx\n", 37 load_addr); 38 } else { 39 ld = simple_strtoul(argv[0], NULL, 16); 40 debug("* kernel: cmdline image address = 0x%08lx\n", 41 images->ep); 42 } 43 44 ret = booti_setup(ld, &relocated_addr, &image_size); 45 if (ret != 0) 46 return 1; 47 48 /* Handle BOOTM_STATE_LOADOS */ 49 if (relocated_addr != ld) { 50 debug("Moving Image from 0x%lx to 0x%lx\n", ld, relocated_addr); 51 memmove((void *)relocated_addr, (void *)ld, image_size); 52 } 53 54 images->ep = relocated_addr; 55 lmb_reserve(&images->lmb, images->ep, le32_to_cpu(image_size)); 56 57 /* 58 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not 59 * have a header that provide this informaiton. 60 */ 61 if (bootm_find_images(flag, argc, argv)) 62 return 1; 63 64 return 0; 65 } 66 67 int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 68 { 69 int ret; 70 71 /* Consume 'booti' */ 72 argc--; argv++; 73 74 if (booti_start(cmdtp, flag, argc, argv, &images)) 75 return 1; 76 77 /* 78 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must 79 * disable interrupts ourselves 80 */ 81 bootm_disable_interrupts(); 82 83 images.os.os = IH_OS_LINUX; 84 images.os.arch = IH_ARCH_ARM64; 85 ret = do_bootm_states(cmdtp, flag, argc, argv, 86 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 87 BOOTM_STATE_RAMDISK | 88 #endif 89 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | 90 BOOTM_STATE_OS_GO, 91 &images, 1); 92 93 return ret; 94 } 95 96 #ifdef CONFIG_SYS_LONGHELP 97 static char booti_help_text[] = 98 "[addr [initrd[:size]] [fdt]]\n" 99 " - boot arm64 Linux Image stored in memory\n" 100 "\tThe argument 'initrd' is optional and specifies the address\n" 101 "\tof an initrd in memory. The optional parameter ':size' allows\n" 102 "\tspecifying the size of a RAW initrd.\n" 103 #if defined(CONFIG_OF_LIBFDT) 104 "\tSince booting a Linux kernel requires a flat device-tree, a\n" 105 "\tthird argument providing the address of the device-tree blob\n" 106 "\tis required. To boot a kernel with a device-tree blob but\n" 107 "\twithout an initrd image, use a '-' for the initrd argument.\n" 108 #endif 109 ""; 110 #endif 111 112 U_BOOT_CMD( 113 booti, CONFIG_SYS_MAXARGS, 1, do_booti, 114 "boot arm64 Linux Image image from memory", booti_help_text 115 ); 116