[u-boot.git] / cmd / bootz.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2000-2009
 * Wolfgang Denk, DENX Software Engineering, [email protected].
 */

#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[], bootm_headers_t *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 = simple_strtoul(argv[0], NULL, 16);
		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(flag, argc, argv))
		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_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
			      BOOTM_STATE_OS_GO,
			      &images, 1);

	return ret;
}

#ifdef CONFIG_SYS_LONGHELP
static char bootz_help_text[] =
	"[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
	"";
#endif

U_BOOT_CMD(
	bootz,	CONFIG_SYS_MAXARGS,	1,	do_bootz,
	"boot Linux zImage image from memory", bootz_help_text
);
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
5db28905 TR	2	/*
	3	* (C) Copyright 2000-2009
	4	* Wolfgang Denk, DENX Software Engineering, [email protected].
5db28905 TR	5	*/
	6
	7	#include <common.h>
	8	#include <bootm.h>
	9	#include <command.h>
8e8ccfe1	10	#include <image.h>
36bf446b	11	#include <irq_func.h>
5db28905	12	#include <lmb.h>
f7ae49fc	13	#include <log.h>
5db28905 TR	14	#include <linux/compiler.h>
	15
	16	int __weak bootz_setup(ulong image, ulong start, ulong end)
	17	{
	18	/* Please define bootz_setup() for your platform */
	19
	20	puts("Your platform's zImage format isn't supported yet!\n");
	21	return -1;
	22	}
	23
	24	/*
	25	* zImage booting support
	26	*/
09140113 SG	27	static int bootz_start(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	28	char const argv[], bootm_headers_t images)
5db28905 TR	29	{
	30	int ret;
	31	ulong zi_start, zi_end;
	32
	33	ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
	34	images, 1);
	35
	36	/* Setup Linux kernel zImage entry point */
	37	if (!argc) {
bb872dd9	38	images->ep = image_load_addr;
5db28905	39	debug("* kernel: default image load address = 0x%08lx\n",
bb872dd9	40	image_load_addr);
5db28905 TR	41	} else {
	42	images->ep = simple_strtoul(argv[0], NULL, 16);
	43	debug("* kernel: cmdline image address = 0x%08lx\n",
	44	images->ep);
	45	}
	46
	47	ret = bootz_setup(images->ep, &zi_start, &zi_end);
	48	if (ret != 0)
	49	return 1;
	50
	51	lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
	52
	53	/*
	54	* Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
	55	* have a header that provide this informaiton.
	56	*/
	57	if (bootm_find_images(flag, argc, argv))
	58	return 1;
	59
	60	return 0;
	61	}
	62
09140113	63	int do_bootz(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
5db28905 TR	64	{
	65	int ret;
	66
	67	/* Consume 'bootz' */
	68	argc--; argv++;
	69
	70	if (bootz_start(cmdtp, flag, argc, argv, &images))
	71	return 1;
	72
	73	/*
	74	* We are doing the BOOTM_STATE_LOADOS state ourselves, so must
	75	* disable interrupts ourselves
	76	*/
	77	bootm_disable_interrupts();
	78
	79	images.os.os = IH_OS_LINUX;
	80	ret = do_bootm_states(cmdtp, flag, argc, argv,
4943dc2f CS	81	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	82	BOOTM_STATE_RAMDISK \|
	83	#endif
5db28905 TR	84	BOOTM_STATE_OS_PREP \| BOOTM_STATE_OS_FAKE_GO \|
	85	BOOTM_STATE_OS_GO,
	86	&images, 1);
	87
	88	return ret;
	89	}
	90
	91	#ifdef CONFIG_SYS_LONGHELP
	92	static char bootz_help_text[] =
	93	"[addr [initrd[:size]] [fdt]]\n"
	94	" - boot Linux zImage stored in memory\n"
	95	"\tThe argument 'initrd' is optional and specifies the address\n"
	96	"\tof the initrd in memory. The optional argument ':size' allows\n"
	97	"\tspecifying the size of RAW initrd.\n"
	98	#if defined(CONFIG_OF_LIBFDT)
	99	"\tWhen booting a Linux kernel which requires a flat device-tree\n"
	100	"\ta third argument is required which is the address of the\n"
	101	"\tdevice-tree blob. To boot that kernel without an initrd image,\n"
	102	"\tuse a '-' for the second argument. If you do not pass a third\n"
	103	"\ta bd_info struct will be passed instead\n"
	104	#endif
	105	"";
	106	#endif
	107
	108	U_BOOT_CMD(
	109	bootz, CONFIG_SYS_MAXARGS, 1, do_bootz,
	110	"boot Linux zImage image from memory", bootz_help_text
	111	);