[J-u-boot.git] / arch / arm / lib / bootm.c

/* Copyright (C) 2011
 * Corscience GmbH & Co. KG - Simon Schwarz <[email protected]>
 *  - Added prep subcommand support
 *  - Reorganized source - modeled after powerpc version
 *
 * (C) Copyright 2002
 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
 * Marius Groeger <[email protected]>
 *
 * Copyright (C) 2001  Erik Mouw ([email protected])
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <command.h>
#include <image.h>
#include <u-boot/zlib.h>
#include <asm/byteorder.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <asm/bootm.h>
#include <linux/compiler.h>

#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
#include <asm/armv7.h>
#endif

DECLARE_GLOBAL_DATA_PTR;

static struct tag *params;

static ulong get_sp(void)
{
	ulong ret;

	asm("mov %0, sp" : "=r"(ret) : );
	return ret;
}

void arch_lmb_reserve(struct lmb *lmb)
{
	ulong sp;

	/*
	 * Booting a (Linux) kernel image
	 *
	 * Allocate space for command line and board info - the
	 * address should be as high as possible within the reach of
	 * the kernel (see CONFIG_SYS_BOOTMAPSZ settings), but in unused
	 * memory, which means far enough below the current stack
	 * pointer.
	 */
	sp = get_sp();
	debug("## Current stack ends at 0x%08lx ", sp);

	/* adjust sp by 4K to be safe */
	sp -= 4096;
	lmb_reserve(lmb, sp,
		    gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - sp);
}

/**
 * announce_and_cleanup() - Print message and prepare for kernel boot
 *
 * @fake: non-zero to do everything except actually boot
 */
static void announce_and_cleanup(int fake)
{
	printf("\nStarting kernel ...%s\n\n", fake ?
		"(fake run for tracing)" : "");
	bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel");
#ifdef CONFIG_BOOTSTAGE_FDT
	if (flag == BOOTM_STATE_OS_FAKE_GO)
		bootstage_fdt_add_report();
#endif
#ifdef CONFIG_BOOTSTAGE_REPORT
	bootstage_report();
#endif

#ifdef CONFIG_USB_DEVICE
	udc_disconnect();
#endif
	cleanup_before_linux();
}

static void setup_start_tag (bd_t *bd)
{
	params = (struct tag *)bd->bi_boot_params;

	params->hdr.tag = ATAG_CORE;
	params->hdr.size = tag_size (tag_core);

	params->u.core.flags = 0;
	params->u.core.pagesize = 0;
	params->u.core.rootdev = 0;

	params = tag_next (params);
}

static void setup_memory_tags(bd_t *bd)
{
	int i;

	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
		params->hdr.tag = ATAG_MEM;
		params->hdr.size = tag_size (tag_mem32);

		params->u.mem.start = bd->bi_dram[i].start;
		params->u.mem.size = bd->bi_dram[i].size;

		params = tag_next (params);
	}
}

static void setup_commandline_tag(bd_t *bd, char *commandline)
{
	char *p;

	if (!commandline)
		return;

	/* eat leading white space */
	for (p = commandline; *p == ' '; p++);

	/* skip non-existent command lines so the kernel will still
	 * use its default command line.
	 */
	if (*p == '\0')
		return;

	params->hdr.tag = ATAG_CMDLINE;
	params->hdr.size =
		(sizeof (struct tag_header) + strlen (p) + 1 + 4) >> 2;

	strcpy (params->u.cmdline.cmdline, p);

	params = tag_next (params);
}

static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end)
{
	/* an ATAG_INITRD node tells the kernel where the compressed
	 * ramdisk can be found. ATAG_RDIMG is a better name, actually.
	 */
	params->hdr.tag = ATAG_INITRD2;
	params->hdr.size = tag_size (tag_initrd);

	params->u.initrd.start = initrd_start;
	params->u.initrd.size = initrd_end - initrd_start;

	params = tag_next (params);
}

static void setup_serial_tag(struct tag **tmp)
{
	struct tag *params = *tmp;
	struct tag_serialnr serialnr;

	get_board_serial(&serialnr);
	params->hdr.tag = ATAG_SERIAL;
	params->hdr.size = tag_size (tag_serialnr);
	params->u.serialnr.low = serialnr.low;
	params->u.serialnr.high= serialnr.high;
	params = tag_next (params);
	*tmp = params;
}

static void setup_revision_tag(struct tag **in_params)
{
	u32 rev = 0;

	rev = get_board_rev();
	params->hdr.tag = ATAG_REVISION;
	params->hdr.size = tag_size (tag_revision);
	params->u.revision.rev = rev;
	params = tag_next (params);
}

static void setup_end_tag(bd_t *bd)
{
	params->hdr.tag = ATAG_NONE;
	params->hdr.size = 0;
}

__weak void setup_board_tags(struct tag **in_params) {}

static void do_nonsec_virt_switch(void)
{
#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
	if (armv7_switch_nonsec() == 0)
#ifdef CONFIG_ARMV7_VIRT
		if (armv7_switch_hyp() == 0)
			debug("entered HYP mode\n");
#else
		debug("entered non-secure state\n");
#endif
#endif

#ifdef CONFIG_ARM64
	smp_kick_all_cpus();
	armv8_switch_to_el2();
#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
	armv8_switch_to_el1();
#endif
#endif
}

/* Subcommand: PREP */
static void boot_prep_linux(bootm_headers_t *images)
{
	char *commandline = getenv("bootargs");

	if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
#ifdef CONFIG_OF_LIBFDT
		debug("using: FDT\n");
		if (image_setup_linux(images)) {
			printf("FDT creation failed! hanging...");
			hang();
		}
#endif
	} else if (BOOTM_ENABLE_TAGS) {
		debug("using: ATAGS\n");
		setup_start_tag(gd->bd);
		if (BOOTM_ENABLE_SERIAL_TAG)
			setup_serial_tag(&params);
		if (BOOTM_ENABLE_CMDLINE_TAG)
			setup_commandline_tag(gd->bd, commandline);
		if (BOOTM_ENABLE_REVISION_TAG)
			setup_revision_tag(&params);
		if (BOOTM_ENABLE_MEMORY_TAGS)
			setup_memory_tags(gd->bd);
		if (BOOTM_ENABLE_INITRD_TAG) {
			if (images->rd_start && images->rd_end) {
				setup_initrd_tag(gd->bd, images->rd_start,
						 images->rd_end);
			}
		}
		setup_board_tags(&params);
		setup_end_tag(gd->bd);
	} else {
		printf("FDT and ATAGS support not compiled in - hanging\n");
		hang();
	}
	do_nonsec_virt_switch();
}

/* Subcommand: GO */
static void boot_jump_linux(bootm_headers_t *images, int flag)
{
#ifdef CONFIG_ARM64
	void (*kernel_entry)(void *fdt_addr);
	int fake = (flag & BOOTM_STATE_OS_FAKE_GO);

	kernel_entry = (void (*)(void *fdt_addr))images->ep;

	debug("## Transferring control to Linux (at address %lx)...\n",
		(ulong) kernel_entry);
	bootstage_mark(BOOTSTAGE_ID_RUN_OS);

	announce_and_cleanup(fake);

	if (!fake)
		kernel_entry(images->ft_addr);
#else
	unsigned long machid = gd->bd->bi_arch_number;
	char *s;
	void (*kernel_entry)(int zero, int arch, uint params);
	unsigned long r2;
	int fake = (flag & BOOTM_STATE_OS_FAKE_GO);

	kernel_entry = (void (*)(int, int, uint))images->ep;

	s = getenv("machid");
	if (s) {
		strict_strtoul(s, 16, &machid);
		printf("Using machid 0x%lx from environment\n", machid);
	}

	debug("## Transferring control to Linux (at address %08lx)" \
		"...\n", (ulong) kernel_entry);
	bootstage_mark(BOOTSTAGE_ID_RUN_OS);
	announce_and_cleanup(fake);

	if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
		r2 = (unsigned long)images->ft_addr;
	else
		r2 = gd->bd->bi_boot_params;

	if (!fake)
		kernel_entry(0, machid, r2);
#endif
}

/* Main Entry point for arm bootm implementation
 *
 * Modeled after the powerpc implementation
 * DIFFERENCE: Instead of calling prep and go at the end
 * they are called if subcommand is equal 0.
 */
int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
{
	/* No need for those on ARM */
	if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE)
		return -1;

	if (flag & BOOTM_STATE_OS_PREP) {
		boot_prep_linux(images);
		return 0;
	}

	if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
		boot_jump_linux(images, flag);
		return 0;
	}

	boot_prep_linux(images);
	boot_jump_linux(images, flag);
	return 0;
}

#ifdef CONFIG_CMD_BOOTZ

struct zimage_header {
	uint32_t	code[9];
	uint32_t	zi_magic;
	uint32_t	zi_start;
	uint32_t	zi_end;
};

#define	LINUX_ARM_ZIMAGE_MAGIC	0x016f2818

int bootz_setup(ulong image, ulong *start, ulong *end)
{
	struct zimage_header *zi;

	zi = (struct zimage_header *)map_sysmem(image, 0);
	if (zi->zi_magic != LINUX_ARM_ZIMAGE_MAGIC) {
		puts("Bad Linux ARM zImage magic!\n");
		return 1;
	}

	*start = zi->zi_start;
	*end = zi->zi_end;

	printf("Kernel image @ %#08lx [ %#08lx - %#08lx ]\n", image, *start,
	      *end);

	return 0;
}

#endif	/* CONFIG_CMD_BOOTZ */

#if defined(CONFIG_BOOTM_VXWORKS)
void boot_prep_vxworks(bootm_headers_t *images)
{
#if defined(CONFIG_OF_LIBFDT)
	int off;

	if (images->ft_addr) {
		off = fdt_path_offset(images->ft_addr, "/memory");
		if (off < 0) {
			if (arch_fixup_memory_node(images->ft_addr))
				puts("## WARNING: fixup memory failed!\n");
		}
	}
#endif
	cleanup_before_linux();
}
void boot_jump_vxworks(bootm_headers_t *images)
{
	/* ARM VxWorks requires device tree physical address to be passed */
	((void (*)(void *))images->ep)(images->ft_addr);
}
#endif
Commit	Line	Data
0a672d49 SS	1	/* Copyright (C) 2011
	2	* Corscience GmbH & Co. KG - Simon Schwarz <[email protected]>
	3	* - Added prep subcommand support
	4	* - Reorganized source - modeled after powerpc version
	5	*
c609719b WD	6	* (C) Copyright 2002
	7	* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
	8	* Marius Groeger <[email protected]>
	9	*
	10	* Copyright (C) 2001 Erik Mouw ([email protected])
	11	*
1a459660	12	* SPDX-License-Identifier: GPL-2.0+
c609719b WD	13	*/
	14
	15	#include <common.h>
	16	#include <command.h>
c609719b	17	#include <image.h>
a31e091a	18	#include <u-boot/zlib.h>
c609719b	19	#include <asm/byteorder.h>
2d1916e4 JR	20	#include <libfdt.h>
2d1916e4 JR	21	#include <fdt_support.h>
0a672d49	22	#include <asm/bootm.h>
89e6f138	23	#include <linux/compiler.h>
c609719b	24
d4296887	25	#if defined(CONFIG_ARMV7_NONSEC) \|\| defined(CONFIG_ARMV7_VIRT)
bb975455 AP	26	#include <asm/armv7.h>
	27	#endif
	28
d87080b7 WD	29	DECLARE_GLOBAL_DATA_PTR;
d87080b7 WD	30
c609719b	31	static struct tag *params;
2d1916e4	32
0a672d49 SS	33	static ulong get_sp(void)
	34	{
	35	ulong ret;
	36
	37	asm("mov %0, sp" : "=r"(ret) : );
	38	return ret;
	39	}
	40
2d1916e4 JR	41	void arch_lmb_reserve(struct lmb *lmb)
	42	{
	43	ulong sp;
	44
	45	/*
	46	* Booting a (Linux) kernel image
	47	*
	48	* Allocate space for command line and board info - the
	49	* address should be as high as possible within the reach of
	50	* the kernel (see CONFIG_SYS_BOOTMAPSZ settings), but in unused
	51	* memory, which means far enough below the current stack
	52	* pointer.
	53	*/
	54	sp = get_sp();
	55	debug("## Current stack ends at 0x%08lx ", sp);
	56
fcfa696b RH	57	/* adjust sp by 4K to be safe */
fcfa696b RH	58	sp -= 4096;
2d1916e4 JR	59	lmb_reserve(lmb, sp,
	60	gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - sp);
	61	}
	62
bce1b92a SG	63	/**
	64	* announce_and_cleanup() - Print message and prepare for kernel boot
	65	*
	66	* @fake: non-zero to do everything except actually boot
	67	*/
	68	static void announce_and_cleanup(int fake)
2d1916e4	69	{
bce1b92a SG	70	printf("\nStarting kernel ...%s\n\n", fake ?
bce1b92a SG	71	"(fake run for tracing)" : "");
0a672d49	72	bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel");
94fd1316	73	#ifdef CONFIG_BOOTSTAGE_FDT
bce1b92a SG	74	if (flag == BOOTM_STATE_OS_FAKE_GO)
bce1b92a SG	75	bootstage_fdt_add_report();
94fd1316	76	#endif
0a672d49 SS	77	#ifdef CONFIG_BOOTSTAGE_REPORT
	78	bootstage_report();
	79	#endif
1055171e	80
0a672d49 SS	81	#ifdef CONFIG_USB_DEVICE
0a672d49 SS	82	udc_disconnect();
2d1916e4	83	#endif
0a672d49 SS	84	cleanup_before_linux();
0a672d49 SS	85	}
c609719b	86
5779d8d9	87	static void setup_start_tag (bd_t *bd)
c609719b	88	{
0a672d49	89	params = (struct tag *)bd->bi_boot_params;
c609719b	90
5779d8d9 WD	91	params->hdr.tag = ATAG_CORE;
5779d8d9 WD	92	params->hdr.size = tag_size (tag_core);
c609719b	93
5779d8d9 WD	94	params->u.core.flags = 0;
	95	params->u.core.pagesize = 0;
	96	params->u.core.rootdev = 0;
c609719b	97
5779d8d9	98	params = tag_next (params);
c609719b	99	}
c609719b	100
0a672d49	101	static void setup_memory_tags(bd_t *bd)
c609719b	102	{
5779d8d9	103	int i;
c609719b	104
5779d8d9 WD	105	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
	106	params->hdr.tag = ATAG_MEM;
	107	params->hdr.size = tag_size (tag_mem32);
c609719b	108
5779d8d9 WD	109	params->u.mem.start = bd->bi_dram[i].start;
5779d8d9 WD	110	params->u.mem.size = bd->bi_dram[i].size;
c609719b	111
5779d8d9 WD	112	params = tag_next (params);
5779d8d9 WD	113	}
c609719b	114	}
c609719b	115
0a672d49	116	static void setup_commandline_tag(bd_t bd, char commandline)
c609719b	117	{
5779d8d9	118	char *p;
c609719b	119
109c0e3a WD	120	if (!commandline)
	121	return;
	122
5779d8d9 WD	123	/* eat leading white space */
5779d8d9 WD	124	for (p = commandline; *p == ' '; p++);
c609719b	125
5779d8d9 WD	126	/* skip non-existent command lines so the kernel will still
	127	* use its default command line.
	128	*/
	129	if (*p == '\0')
	130	return;
c609719b	131
5779d8d9 WD	132	params->hdr.tag = ATAG_CMDLINE;
	133	params->hdr.size =
	134	(sizeof (struct tag_header) + strlen (p) + 1 + 4) >> 2;
c609719b	135
5779d8d9	136	strcpy (params->u.cmdline.cmdline, p);
c609719b	137
5779d8d9	138	params = tag_next (params);
c609719b	139	}
c609719b	140
0a672d49	141	static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end)
c609719b	142	{
5779d8d9 WD	143	/* an ATAG_INITRD node tells the kernel where the compressed
	144	* ramdisk can be found. ATAG_RDIMG is a better name, actually.
	145	*/
498b8db7	146	params->hdr.tag = ATAG_INITRD2;
5779d8d9	147	params->hdr.size = tag_size (tag_initrd);
c609719b	148
5779d8d9 WD	149	params->u.initrd.start = initrd_start;
5779d8d9 WD	150	params->u.initrd.size = initrd_end - initrd_start;
c609719b	151
5779d8d9	152	params = tag_next (params);
c609719b WD	153	}
c609719b WD	154
c19d13b0	155	static void setup_serial_tag(struct tag **tmp)
3a574cbe WD	156	{
	157	struct tag params = tmp;
	158	struct tag_serialnr serialnr;
3a574cbe WD	159
	160	get_board_serial(&serialnr);
	161	params->hdr.tag = ATAG_SERIAL;
	162	params->hdr.size = tag_size (tag_serialnr);
	163	params->u.serialnr.low = serialnr.low;
	164	params->u.serialnr.high= serialnr.high;
	165	params = tag_next (params);
	166	*tmp = params;
	167	}
3a574cbe	168
c19d13b0	169	static void setup_revision_tag(struct tag **in_params)
289f932c WD	170	{
289f932c WD	171	u32 rev = 0;
289f932c WD	172
289f932c WD	173	rev = get_board_rev();
289f932c WD	174	params->hdr.tag = ATAG_REVISION;
	175	params->hdr.size = tag_size (tag_revision);
	176	params->u.revision.rev = rev;
	177	params = tag_next (params);
	178	}
289f932c	179
0a672d49	180	static void setup_end_tag(bd_t *bd)
c609719b	181	{
5779d8d9 WD	182	params->hdr.tag = ATAG_NONE;
5779d8d9 WD	183	params->hdr.size = 0;
c609719b WD	184	}
c609719b WD	185
89e6f138 T	186	__weak void setup_board_tags(struct tag **in_params) {}
89e6f138 T	187
bb975455 AP	188	static void do_nonsec_virt_switch(void)
	189	{
	190	#if defined(CONFIG_ARMV7_NONSEC) \|\| defined(CONFIG_ARMV7_VIRT)
	191	if (armv7_switch_nonsec() == 0)
d4296887 AP	192	#ifdef CONFIG_ARMV7_VIRT
	193	if (armv7_switch_hyp() == 0)
	194	debug("entered HYP mode\n");
	195	#else
bb975455 AP	196	debug("entered non-secure state\n");
bb975455 AP	197	#endif
d4296887	198	#endif
0ae76531 DF	199
	200	#ifdef CONFIG_ARM64
	201	smp_kick_all_cpus();
	202	armv8_switch_to_el2();
	203	#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
	204	armv8_switch_to_el1();
	205	#endif
	206	#endif
bb975455 AP	207	}
bb975455 AP	208
0a672d49 SS	209	/* Subcommand: PREP */
	210	static void boot_prep_linux(bootm_headers_t *images)
	211	{
0a672d49	212	char *commandline = getenv("bootargs");
0a672d49	213
c19d13b0	214	if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
0a672d49	215	#ifdef CONFIG_OF_LIBFDT
0a672d49	216	debug("using: FDT\n");
6caa1956	217	if (image_setup_linux(images)) {
0a672d49 SS	218	printf("FDT creation failed! hanging...");
	219	hang();
	220	}
0a672d49	221	#endif
c19d13b0	222	} else if (BOOTM_ENABLE_TAGS) {
0a672d49 SS	223	debug("using: ATAGS\n");
0a672d49 SS	224	setup_start_tag(gd->bd);
c19d13b0 SG	225	if (BOOTM_ENABLE_SERIAL_TAG)
	226	setup_serial_tag(&params);
	227	if (BOOTM_ENABLE_CMDLINE_TAG)
	228	setup_commandline_tag(gd->bd, commandline);
	229	if (BOOTM_ENABLE_REVISION_TAG)
	230	setup_revision_tag(&params);
	231	if (BOOTM_ENABLE_MEMORY_TAGS)
	232	setup_memory_tags(gd->bd);
	233	if (BOOTM_ENABLE_INITRD_TAG) {
	234	if (images->rd_start && images->rd_end) {
	235	setup_initrd_tag(gd->bd, images->rd_start,
	236	images->rd_end);
	237	}
	238	}
89e6f138	239	setup_board_tags(&params);
0a672d49	240	setup_end_tag(gd->bd);
c19d13b0	241	} else {
0a672d49 SS	242	printf("FDT and ATAGS support not compiled in - hanging\n");
0a672d49 SS	243	hang();
0a672d49	244	}
bb975455	245	do_nonsec_virt_switch();
0a672d49 SS	246	}
	247
	248	/* Subcommand: GO */
bce1b92a	249	static void boot_jump_linux(bootm_headers_t *images, int flag)
0a672d49	250	{
0ae76531 DF	251	#ifdef CONFIG_ARM64
	252	void (kernel_entry)(void fdt_addr);
	253	int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
	254
	255	kernel_entry = (void ()(void fdt_addr))images->ep;
	256
	257	debug("## Transferring control to Linux (at address %lx)...\n",
	258	(ulong) kernel_entry);
	259	bootstage_mark(BOOTSTAGE_ID_RUN_OS);
	260
	261	announce_and_cleanup(fake);
	262
	263	if (!fake)
	264	kernel_entry(images->ft_addr);
	265	#else
0a672d49 SS	266	unsigned long machid = gd->bd->bi_arch_number;
	267	char *s;
	268	void (*kernel_entry)(int zero, int arch, uint params);
17239976	269	unsigned long r2;
bce1b92a	270	int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
0a672d49 SS	271
	272	kernel_entry = (void (*)(int, int, uint))images->ep;
	273
	274	s = getenv("machid");
	275	if (s) {
	276	strict_strtoul(s, 16, &machid);
	277	printf("Using machid 0x%lx from environment\n", machid);
	278	}
	279
	280	debug("## Transferring control to Linux (at address %08lx)" \
	281	"...\n", (ulong) kernel_entry);
	282	bootstage_mark(BOOTSTAGE_ID_RUN_OS);
bce1b92a	283	announce_and_cleanup(fake);
17239976	284
c19d13b0	285	if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len)
17239976 SW	286	r2 = (unsigned long)images->ft_addr;
17239976 SW	287	else
17239976 SW	288	r2 = gd->bd->bi_boot_params;
17239976 SW	289
bce1b92a SG	290	if (!fake)
bce1b92a SG	291	kernel_entry(0, machid, r2);
0ae76531	292	#endif
0a672d49 SS	293	}
	294
	295	/* Main Entry point for arm bootm implementation
	296	*
	297	* Modeled after the powerpc implementation
	298	* DIFFERENCE: Instead of calling prep and go at the end
	299	* they are called if subcommand is equal 0.
	300	*/
	301	int do_bootm_linux(int flag, int argc, char argv[], bootm_headers_t images)
	302	{
	303	/* No need for those on ARM */
	304	if (flag & BOOTM_STATE_OS_BD_T \|\| flag & BOOTM_STATE_OS_CMDLINE)
	305	return -1;
	306
	307	if (flag & BOOTM_STATE_OS_PREP) {
	308	boot_prep_linux(images);
	309	return 0;
	310	}
	311
bce1b92a SG	312	if (flag & (BOOTM_STATE_OS_GO \| BOOTM_STATE_OS_FAKE_GO)) {
bce1b92a SG	313	boot_jump_linux(images, flag);
0a672d49 SS	314	return 0;
	315	}
	316
	317	boot_prep_linux(images);
bce1b92a	318	boot_jump_linux(images, flag);
0a672d49	319	return 0;
2d1916e4	320	}
44f074c7 MV	321
	322	#ifdef CONFIG_CMD_BOOTZ
	323
	324	struct zimage_header {
	325	uint32_t code[9];
	326	uint32_t zi_magic;
	327	uint32_t zi_start;
	328	uint32_t zi_end;
	329	};
	330
	331	#define LINUX_ARM_ZIMAGE_MAGIC 0x016f2818
	332
a5266d6b	333	int bootz_setup(ulong image, ulong start, ulong end)
44f074c7	334	{
a5266d6b	335	struct zimage_header *zi;
44f074c7	336
a5266d6b	337	zi = (struct zimage_header *)map_sysmem(image, 0);
44f074c7 MV	338	if (zi->zi_magic != LINUX_ARM_ZIMAGE_MAGIC) {
	339	puts("Bad Linux ARM zImage magic!\n");
	340	return 1;
	341	}
	342
a5266d6b SG	343	*start = zi->zi_start;
a5266d6b SG	344	*end = zi->zi_end;
44f074c7	345
a5266d6b SG	346	printf("Kernel image @ %#08lx [ %#08lx - %#08lx ]\n", image, *start,
a5266d6b SG	347	*end);
44f074c7 MV	348
	349	return 0;
	350	}
a5266d6b	351
44f074c7	352	#endif /* CONFIG_CMD_BOOTZ */
871a57bb MY	353
	354	#if defined(CONFIG_BOOTM_VXWORKS)
	355	void boot_prep_vxworks(bootm_headers_t *images)
	356	{
	357	#if defined(CONFIG_OF_LIBFDT)
	358	int off;
	359
	360	if (images->ft_addr) {
	361	off = fdt_path_offset(images->ft_addr, "/memory");
	362	if (off < 0) {
	363	if (arch_fixup_memory_node(images->ft_addr))
	364	puts("## WARNING: fixup memory failed!\n");
	365	}
	366	}
	367	#endif
	368	cleanup_before_linux();
	369	}
	370	void boot_jump_vxworks(bootm_headers_t *images)
	371	{
	372	/* ARM VxWorks requires device tree physical address to be passed */
	373	((void ()(void ))images->ep)(images->ft_addr);
	374	}
	375	#endif