| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * (C) Copyright 2000-2009 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| */ |
| |
| #include <common.h> |
| #include <bootm.h> |
| #include <command.h> |
| #include <image.h> |
| #include <irq_func.h> |
| #include <lmb.h> |
| #include <log.h> |
| #include <mapmem.h> |
| #include <asm/global_data.h> |
| #include <linux/kernel.h> |
| #include <linux/sizes.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| /* |
| * Image booting support |
| */ |
| static int booti_start(struct cmd_tbl *cmdtp, int flag, int argc, |
| char *const argv[], struct bootm_headers *images) |
| { |
| int ret; |
| ulong ld; |
| ulong relocated_addr; |
| ulong image_size; |
| uint8_t *temp; |
| ulong dest; |
| ulong dest_end; |
| unsigned long comp_len; |
| unsigned long decomp_len; |
| int ctype; |
| |
| ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START, |
| images, 1); |
| |
| /* Setup Linux kernel Image entry point */ |
| if (!argc) { |
| ld = image_load_addr; |
| debug("* kernel: default image load address = 0x%08lx\n", |
| image_load_addr); |
| } else { |
| ld = hextoul(argv[0], NULL); |
| debug("* kernel: cmdline image address = 0x%08lx\n", ld); |
| } |
| |
| temp = map_sysmem(ld, 0); |
| ctype = image_decomp_type(temp, 2); |
| if (ctype > 0) { |
| dest = env_get_ulong("kernel_comp_addr_r", 16, 0); |
| comp_len = env_get_ulong("kernel_comp_size", 16, 0); |
| if (!dest || !comp_len) { |
| puts("kernel_comp_addr_r or kernel_comp_size is not provided!\n"); |
| return -EINVAL; |
| } |
| if (dest < gd->ram_base || dest > gd->ram_top) { |
| puts("kernel_comp_addr_r is outside of DRAM range!\n"); |
| return -EINVAL; |
| } |
| |
| debug("kernel image compression type %d size = 0x%08lx address = 0x%08lx\n", |
| ctype, comp_len, (ulong)dest); |
| decomp_len = comp_len * 10; |
| ret = image_decomp(ctype, 0, ld, IH_TYPE_KERNEL, |
| (void *)dest, (void *)ld, comp_len, |
| decomp_len, &dest_end); |
| if (ret) |
| return ret; |
| /* dest_end contains the uncompressed Image size */ |
| memmove((void *) ld, (void *)dest, dest_end); |
| } |
| unmap_sysmem((void *)ld); |
| |
| ret = booti_setup(ld, &relocated_addr, &image_size, false); |
| if (ret || IS_ENABLED(CONFIG_SANDBOX)) |
| return 1; |
| |
| /* Handle BOOTM_STATE_LOADOS */ |
| if (relocated_addr != ld) { |
| printf("Moving Image from 0x%lx to 0x%lx, end=%lx\n", ld, |
| relocated_addr, relocated_addr + image_size); |
| memmove((void *)relocated_addr, (void *)ld, image_size); |
| } |
| |
| images->ep = relocated_addr; |
| images->os.start = relocated_addr; |
| images->os.end = relocated_addr + image_size; |
| |
| lmb_reserve(&images->lmb, images->ep, le32_to_cpu(image_size)); |
| |
| /* |
| * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not |
| * have a header that provide this informaiton. |
| */ |
| if (bootm_find_images(image_load_addr, cmd_arg1(argc, argv), |
| cmd_arg2(argc, argv), relocated_addr, |
| image_size)) |
| return 1; |
| |
| return 0; |
| } |
| |
| int do_booti(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) |
| { |
| int ret; |
| |
| /* Consume 'booti' */ |
| argc--; argv++; |
| |
| if (booti_start(cmdtp, flag, argc, argv, &images)) |
| return 1; |
| |
| /* |
| * We are doing the BOOTM_STATE_LOADOS state ourselves, so must |
| * disable interrupts ourselves |
| */ |
| bootm_disable_interrupts(); |
| |
| images.os.os = IH_OS_LINUX; |
| #ifdef CONFIG_RISCV_SMODE |
| images.os.arch = IH_ARCH_RISCV; |
| #elif CONFIG_ARM64 |
| images.os.arch = IH_ARCH_ARM64; |
| #endif |
| ret = do_bootm_states(cmdtp, flag, argc, argv, |
| #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH |
| BOOTM_STATE_RAMDISK | |
| #endif |
| BOOTM_STATE_MEASURE | |
| BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | |
| BOOTM_STATE_OS_GO, |
| &images, 1); |
| |
| return ret; |
| } |
| |
| U_BOOT_LONGHELP(booti, |
| "[addr [initrd[:size]] [fdt]]\n" |
| " - boot Linux flat or compressed 'Image' stored at 'addr'\n" |
| "\tThe argument 'initrd' is optional and specifies the address\n" |
| "\tof an initrd in memory. The optional parameter ':size' allows\n" |
| "\tspecifying the size of a RAW initrd.\n" |
| "\tCurrently only booting from gz, bz2, lzma and lz4 compression\n" |
| "\ttypes are supported. In order to boot from any of these compressed\n" |
| "\timages, user have to set kernel_comp_addr_r and kernel_comp_size environment\n" |
| "\tvariables beforehand.\n" |
| #if defined(CONFIG_OF_LIBFDT) |
| "\tSince booting a Linux kernel requires a flat device-tree, a\n" |
| "\tthird argument providing the address of the device-tree blob\n" |
| "\tis required. To boot a kernel with a device-tree blob but\n" |
| "\twithout an initrd image, use a '-' for the initrd argument.\n" |
| #endif |
| ); |
| |
| U_BOOT_CMD( |
| booti, CONFIG_SYS_MAXARGS, 1, do_booti, |
| "boot Linux kernel 'Image' format from memory", booti_help_text |
| ); |