| // 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 <linux/compiler.h> |
| |
| int __weak bootz_setup(ulong image, ulong *start, ulong *end) |
| { |
| /* Please define bootz_setup() for your platform */ |
| |
| puts("Your platform's zImage format isn't supported yet!\n"); |
| return -1; |
| } |
| |
| /* |
| * zImage booting support |
| */ |
| static int bootz_start(struct cmd_tbl *cmdtp, int flag, int argc, |
| char *const argv[], struct bootm_headers *images) |
| { |
| int ret; |
| ulong zi_start, zi_end; |
| |
| ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START, |
| images, 1); |
| |
| /* Setup Linux kernel zImage entry point */ |
| if (!argc) { |
| images->ep = image_load_addr; |
| debug("* kernel: default image load address = 0x%08lx\n", |
| image_load_addr); |
| } else { |
| images->ep = hextoul(argv[0], NULL); |
| debug("* kernel: cmdline image address = 0x%08lx\n", |
| images->ep); |
| } |
| |
| ret = bootz_setup(images->ep, &zi_start, &zi_end); |
| if (ret != 0) |
| return 1; |
| |
| lmb_reserve(&images->lmb, images->ep, zi_end - zi_start); |
| |
| /* |
| * 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, argc > 1 ? argv[1] : NULL, |
| argc > 2 ? argv[2] : NULL, images->ep, |
| zi_end - zi_start)) |
| return 1; |
| |
| return 0; |
| } |
| |
| int do_bootz(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) |
| { |
| int ret; |
| |
| /* Consume 'bootz' */ |
| argc--; argv++; |
| |
| if (bootz_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; |
| 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(bootz, |
| "[addr [initrd[:size]] [fdt]]\n" |
| " - boot Linux zImage stored in memory\n" |
| "\tThe argument 'initrd' is optional and specifies the address\n" |
| "\tof the initrd in memory. The optional argument ':size' allows\n" |
| "\tspecifying the size of RAW initrd.\n" |
| #if defined(CONFIG_OF_LIBFDT) |
| "\tWhen booting a Linux kernel which requires a flat device-tree\n" |
| "\ta third argument is required which is the address of the\n" |
| "\tdevice-tree blob. To boot that kernel without an initrd image,\n" |
| "\tuse a '-' for the second argument. If you do not pass a third\n" |
| "\ta bd_info struct will be passed instead\n" |
| #endif |
| ); |
| |
| U_BOOT_CMD( |
| bootz, CONFIG_SYS_MAXARGS, 1, do_bootz, |
| "boot Linux zImage image from memory", bootz_help_text |
| ); |