110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000-2009
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <bootm.h>
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#include <command.h>
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#include <irq_func.h>
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#include <lmb.h>
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#include <linux/compiler.h>
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int __weak bootz_setup(ulong image, ulong *start, ulong *end)
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{
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/* Please define bootz_setup() for your platform */
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puts("Your platform's zImage format isn't supported yet!\n");
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return -1;
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}
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/*
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* zImage booting support
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*/
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static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[], bootm_headers_t *images)
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{
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int ret;
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ulong zi_start, zi_end;
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ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
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images, 1);
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/* Setup Linux kernel zImage entry point */
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if (!argc) {
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images->ep = load_addr;
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debug("* kernel: default image load address = 0x%08lx\n",
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load_addr);
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} else {
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images->ep = simple_strtoul(argv[0], NULL, 16);
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debug("* kernel: cmdline image address = 0x%08lx\n",
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images->ep);
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}
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ret = bootz_setup(images->ep, &zi_start, &zi_end);
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if (ret != 0)
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return 1;
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lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
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/*
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* Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
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* have a header that provide this informaiton.
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*/
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if (bootm_find_images(flag, argc, argv))
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return 1;
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return 0;
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}
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int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int ret;
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/* Consume 'bootz' */
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argc--; argv++;
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if (bootz_start(cmdtp, flag, argc, argv, &images))
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return 1;
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/*
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* We are doing the BOOTM_STATE_LOADOS state ourselves, so must
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* disable interrupts ourselves
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*/
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bootm_disable_interrupts();
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images.os.os = IH_OS_LINUX;
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ret = do_bootm_states(cmdtp, flag, argc, argv,
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#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
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BOOTM_STATE_RAMDISK |
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#endif
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BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
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BOOTM_STATE_OS_GO,
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&images, 1);
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return ret;
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}
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#ifdef CONFIG_SYS_LONGHELP
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static char bootz_help_text[] =
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"[addr [initrd[:size]] [fdt]]\n"
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" - boot Linux zImage stored in memory\n"
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"\tThe argument 'initrd' is optional and specifies the address\n"
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"\tof the initrd in memory. The optional argument ':size' allows\n"
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"\tspecifying the size of RAW initrd.\n"
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#if defined(CONFIG_OF_LIBFDT)
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"\tWhen booting a Linux kernel which requires a flat device-tree\n"
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"\ta third argument is required which is the address of the\n"
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"\tdevice-tree blob. To boot that kernel without an initrd image,\n"
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"\tuse a '-' for the second argument. If you do not pass a third\n"
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"\ta bd_info struct will be passed instead\n"
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#endif
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"";
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#endif
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U_BOOT_CMD(
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bootz, CONFIG_SYS_MAXARGS, 1, do_bootz,
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"boot Linux zImage image from memory", bootz_help_text
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);
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