1 /* $NetBSD: machdep.h,v 1.7 2002/02/21 02:52:21 thorpej Exp $ */
2 /* $FreeBSD: releng/10.2/sys/arm/include/machdep.h 278630 2015-02-12 19:35:46Z ian $ */
3
4 #ifndef _MACHDEP_BOOT_MACHDEP_H_
5 #define _MACHDEP_BOOT_MACHDEP_H_
6
7 /* Structs that need to be initialised by initarm */
8 struct pv_addr;
9 extern struct pv_addr irqstack;
10 extern struct pv_addr undstack;
11 extern struct pv_addr abtstack;
12
13 /* Define various stack sizes in pages */
14 #define IRQ_STACK_SIZE 1
15 #define ABT_STACK_SIZE 1
16 #define UND_STACK_SIZE 1
17
18 /* misc prototypes used by the many arm machdeps */
19 struct trapframe;
20 void arm_lock_cache_line(vm_offset_t);
21 void init_proc0(vm_offset_t kstack);
22 void halt(void);
23 void abort_handler(struct trapframe *, int );
24 void set_stackptrs(int cpu);
25 void undefinedinstruction_bounce(struct trapframe *);
26
27 /* Early boot related helper functions */
28 struct arm_boot_params;
29 vm_offset_t default_parse_boot_param(struct arm_boot_params *abp);
30 vm_offset_t freebsd_parse_boot_param(struct arm_boot_params *abp);
31 vm_offset_t linux_parse_boot_param(struct arm_boot_params *abp);
32 vm_offset_t fake_preload_metadata(struct arm_boot_params *abp);
33 vm_offset_t parse_boot_param(struct arm_boot_params *abp);
34 void arm_generic_initclocks(void);
35
36 /*
37 * Initialization functions called by the common initarm() function in
38 * arm/machdep.c (but not necessarily from the custom initarm() functions of
39 * older code).
40 *
41 * - initarm_early_init() is called very early, after parsing the boot params
42 * and after physical memory has been located and sized.
43 *
44 * - platform_devmap_init() is called as one of the last steps of early virtual
45 * memory initialization, shortly before the new page tables are installed.
46 *
47 * - initarm_lastaddr() is called after platform_devmap_init(), and must return
48 * the address of the first byte of unusable KVA space. This allows a
49 * platform to carve out of the top of the KVA space whatever reserves it
50 * needs for things like static device mapping, and this is called to get the
51 * value before calling pmap_bootstrap() which uses the value to size the
52 * available KVA.
53 *
54 * - initarm_gpio_init() is called after the static device mappings are
55 * established and just before cninit(). The intention is that the routine
56 * can do any hardware setup (such as gpio or pinmux) necessary to make the
57 * console functional.
58 *
59 * - initarm_late_init() is called just after cninit(). This is the first of
60 * the init routines that can use printf() and expect the output to appear on
61 * a standard console.
62 *
63 */
64 void initarm_early_init(void);
65 int initarm_devmap_init(void);
66 vm_offset_t initarm_lastaddr(void);
67 void initarm_gpio_init(void);
68 void initarm_late_init(void);
69
70 /* Board-specific attributes */
71 void board_set_serial(uint64_t);
72 void board_set_revision(uint32_t);
73
74 #endif /* !_MACHINE_MACHDEP_H_ */
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