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

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