xref: /openbmc/u-boot/arch/arm/lib/zimage.c (revision 431889d6)
1*431889d6SLadislav Michl /*
2*431889d6SLadislav Michl  * Copyright (C) 2016
3*431889d6SLadislav Michl  * Ladislav Michl <ladis@linux-mips.org>
4*431889d6SLadislav Michl  *
5*431889d6SLadislav Michl  * bootz code:
6*431889d6SLadislav Michl  * Copyright (C) 2012 Marek Vasut <marek.vasut@gmail.com>
7*431889d6SLadislav Michl  *
8*431889d6SLadislav Michl  * SPDX-License-Identifier:	GPL-2.0+
9*431889d6SLadislav Michl  */
10*431889d6SLadislav Michl #include <common.h>
11*431889d6SLadislav Michl 
12*431889d6SLadislav Michl #define	LINUX_ARM_ZIMAGE_MAGIC	0x016f2818
13*431889d6SLadislav Michl 
14*431889d6SLadislav Michl struct arm_z_header {
15*431889d6SLadislav Michl 	uint32_t	code[9];
16*431889d6SLadislav Michl 	uint32_t	zi_magic;
17*431889d6SLadislav Michl 	uint32_t	zi_start;
18*431889d6SLadislav Michl 	uint32_t	zi_end;
19*431889d6SLadislav Michl } __attribute__ ((__packed__));
20*431889d6SLadislav Michl 
21*431889d6SLadislav Michl int bootz_setup(ulong image, ulong *start, ulong *end)
22*431889d6SLadislav Michl {
23*431889d6SLadislav Michl 	struct arm_z_header *zi = (struct arm_z_header *)image;
24*431889d6SLadislav Michl 
25*431889d6SLadislav Michl 	if (zi->zi_magic != LINUX_ARM_ZIMAGE_MAGIC) {
26*431889d6SLadislav Michl #ifndef CONFIG_SPL_FRAMEWORK
27*431889d6SLadislav Michl 		puts("Bad Linux ARM zImage magic!\n");
28*431889d6SLadislav Michl #endif
29*431889d6SLadislav Michl 		return 1;
30*431889d6SLadislav Michl 	}
31*431889d6SLadislav Michl 
32*431889d6SLadislav Michl 	*start = zi->zi_start;
33*431889d6SLadislav Michl 	*end = zi->zi_end;
34*431889d6SLadislav Michl #ifndef CONFIG_SPL_FRAMEWORK
35*431889d6SLadislav Michl 	printf("Kernel image @ %#08lx [ %#08lx - %#08lx ]\n",
36*431889d6SLadislav Michl 	       image, *start, *end);
37*431889d6SLadislav Michl #endif
38*431889d6SLadislav Michl 
39*431889d6SLadislav Michl 	return 0;
40*431889d6SLadislav Michl }
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